201233087 六、發明說明： 【發明所屬之技街領域】 參考相關申請案 本案凊求中國專利申請案第201010213862.4號申請曰 2010年6月30日及美國非臨時專利申請案第·ι〇,〇85號申 -月日2011年1月2〇日之優先權，二案係以引用方式併入此 處。 發明領域 本案係有關於電子技術領域，及更特別地係有關於藍 牙農置及线以及使用難牙裝置之音_放方法。 發明背景 隨著微縮化電子產品的發展，可攜式電子裝置諸如 MP3播放器、MP4播放器、行動電話、個人數位助理 器(PDA) 及可樓式電腦變成愈來愈為人類生活上所必需。無論係使 用前述任-種電子產品，耳機乃極為重要的附件，使得人 們可收聽由該電子產品所提供的聲音信號而不會干擾其它 人。此外，使用耳機來收聽由該電子產品所播放的或接收 的聲音信號，也可減少來自於周圍噪音(例如汽車或火車啟 動或周圍人們談話所產生的聲音）的干擾。 耳機包括有線耳機及無線耳機。隨著藍牙技術的發展 與成熟’無、線藍牙耳機變成愈來愈普&。無線藍牙耳機的 使用上容易且叮避免使用者受「電線」的禁錮。此外，其 造成的輻射量低與耗電量少，且發射角沒有限制。目前藍 201233087 牙耳機包括單聲藍牙耳機及立體聲藍牙耳機，其中立體聲 藍牙耳機給使用者帶來較佳音響效果。於既有的立體聲藍 牙耳機中，一項習知設計為一個藍牙模組透過連接線而連 結至兩個耳機’及藍牙模組接收來自音訊信號播放終端裝 置的立體聲音訊信號’及分別地輸出左聲道音訊信號及右 聲道音訊信號給預定左耳機及右耳機。但立體聲耳機的兩 個耳機間之連接線造成使用者的不便，且使用者必須注意 耳機上的「左」及「右」記號來識別左耳機及右耳機，無 疑地造成使用者耗費時間。此外，顯然視力不佳者或甚至 視障者不適合識別耳機的左耳機及右耳機。如此，先前技 術尚未能解決如何提供耳機其中兩個耳機間無連接，且左 耳機及右耳機可自動識別的問題。 【明内3 發明概要 有鑑於月I』述先前技術之問題而提出本發明。本發明係 有關於㈣—㈣科射自動賴贴耳及料來正確 地供給相制社聲道及料道音減·左耳及右耳。 依據本發明之_第一雄 弟構面，提出一種藍牙耳機，包括 置 軌跡h測早π係經組配來在藍牙耳機配置於使用者耳上 期間，檢測該藍牙耳機之-運動執跡;及-藍 配來發射該運動軌跡給-音訊播放終端裝 、曾接收γ Α從4音訊播敌終端裝置接收左聲道或右聲 二：Γ據該左聲道或右聲道接收指令而從該音 '接*Μ目對應的轉道或右聲道音訊信號。 201233087 依據另一構面，該軌跡檢測單元可包括：一加速度感 測器係經組配來於三維方向檢測該藍牙耳機之加速度；及 一軌跡計算單元係經組配來依據檢測得之加速度，而計算 該藍牙耳機之運動軌跡。 依據另一構面，該軌跡檢測單元可包括：一加速度感 測器係經組配來於三維方向檢測該藍牙耳機之加速度；/ 角速度感測器係經組配來環繞該等三維方向中之至少〆 者，檢測該藍牙耳機之角速度；及—軌跡計算單元係經組 i米依據藉該加速度感測 日极训必/义规π 双W仔之加迷度及精該角速度 感測器檢測得之角速度，而計算該籃牙耳機之運動軌跡。 依據本發明之另一構面，提出一種音訊播放終端裝 置，包括：一藍牙耳機係經組配來從一第一藍牙耳機接收 ，第-藍牙耳機之—運動祕；及—削單元係經組配來 藉由比較該第-藍牙耳機之運動軌跡與預定左耳或右耳特 ^生軌跡，來辨識該第一藍牙耳機係配置於使用者的左界 2耳上’及透過該藍牙模組，發射該識別結果相對應的 工聲道或錢道接„令給該第1牙耳機。 依據另-構面’該音訊播放終端裝置進—步包括一儲 =經組配來儲存該左耳或右耳特徵性轨跡。 別面，該制單元係進—步餘配來當該識 々J、，，a果為左耳時，透 令給 。發射該右聲道接收指 藍牙模组，路果為右耳時，透過该 依據另I 收指令給該第二藍牙耳機。 依據另-構面，該識別單元包括：一截取單元係經組 201233087 配來從該第一藍牙耳機的運動軌跡尾端截取部分運動軌 跡；及一測定單元係經組配來藉由比較所截取的運動軌跡 與預定左耳或右耳特徵性執跡而辨識該第一藍牙耳機係配 置在使用者的左耳或右耳上，及發射一識別結果給該藍牙 模組。 依據本發明之另一構面，提出一種音訊播放系統，包 括：一音訊播放終端裝置及一第一藍牙耳機。該第一藍牙 耳機包括：一第一軌跡檢測單元係經組配來在該第一藍牙 耳機配置於使用者耳上之處理程序期間，檢測該第一藍牙 耳機之一運動軌跡；及一第一藍牙模組係經組配來發射該 運動執跡給該音訊播放終端裝置，從該音訊播放終端裝置 接收左聲道或右聲道接收指令，及依據該左聲道或右聲道 接收指令而從該音訊播放終端裝置接收相對應的左聲道或 右聲道音訊信號。該音訊播放終端裝置包括：一終端藍牙 模組係經組配來從該第一藍牙耳機接收該第一藍牙耳機之 運動軌跡；及一識別單元係經組配來藉由比較該第一藍牙 耳機之運動軌跡與預定左耳或右耳特徵性軌跡而辨識該第 一藍牙耳機係配置在使用者的左耳或右耳上，及透過該藍 牙模組，發射識別結果相對應的左聲道或右聲道接收指令 給該第一藍牙耳機。 依據另一構面，該音訊播放終端裝置進一步包括一儲 存單元係經組配來儲存該左耳或右耳特徵性軌跡。 依據另一構面，該系統進一步包括一第二藍牙耳機。 該識別單元係進一步經組配來當該識別結果為左耳時，透 201233087 過該終端藍牙模組，發射該右聲道接收指令给該第二藍牙 耳機；及當該識別結果為右耳時，透過該終端藍牙=纽， 發射該左聲道接收指令給該第二藍牙耳機。 ' 依據另一構面 禾一藍牙耳機包 括-第二軌跡檢測單元及-第二藍牙耳機。該第二軌跡檢 測單元係經組配來在該第二藍牙耳機配置於使用者耳上二 處理程序顧，檢測該第二藍科機之—運動細；节第 二藍牙模㈣肋配來發_第二藍牙耳機之運動轨跡給 該音訊播放終祕置’從該音訊_終端裝置接收左聲^ 或右聲道接收指令，及依據所接收的該左聲道或右^道= 收指令而從該音訊播放終端裝置純相對應的左聲道或右 聲道音訊信號。該終端藍牙模組係進一步經組配來從該第 -藍牙耳機接收該第二藍牙耳機之運動⑽；該識別單元 係，-步經組配來藉由比較該第二藍牙耳機之運動軌跡與 預定左耳或右耳特徵性執跡而_該第二藍牙耳機係配置 在使用者的左耳或右耳上，及透過該藍牙模組，發射識別 、.Ό果相對應的左聲道或右聲道接收指令給該第二藍牙耳 機0 依據本發明之另一構面，提出-種藍牙耳機，包括： 軌跡檢'則單元、-識別單元、及-藍牙模組’其中：該 軌跡檢解&係經組配來在藍牙耳機配t於使用者耳上之 處理程序期間，檢難藍牙耳機之-運動軌跡；該識別單 元係、’呈汲配來藉由比較藍牙耳機的運動軌跡與預定左耳或 右耳特徵‘H軌跡而辨識該藍牙耳機係配置在使用者的左耳 7 201233087 或右耳上’及發射一識別結果給該藍牙模紐；該藍牙模組 係經組配來當該識別單元之識別結果為左耳時接收左聲道 音訊信號’及當該識別結果為右耳時，接收右聲道音訊信 號。 依據另一構面，該執跡檢測單元包括：一加速度感測 係經組配來於二維方向檢測該藍牙耳機之加速产·及一 軌跡計算單元，其係經組配來依據該檢測得之加速度而計 算該藍牙耳機之運動軌跡。 依據另一構面，該轨跡檢測單元包括：—加速度感測 器係經組配來於三維方向檢測該藍牙耳機之加速度；〆角 速度感測隱經域來環繞該三維方向中之至少Γ者而檢 測該藍牙耳機之角速度；及—軌跡計算單元係經组配來依 據由該加速度感測器檢測得之加速度及由該角速度感測器 所檢測得之角速度而計算該藍牙耳機之運動軌跡。 ，依據另-構面’該識別單元包括：_截取單元係經組 來"X帛Ιί牙耳機的運動執跡尾端戴取部分運動軌 跡’ i 單70係經組配來藉由比較所截取的運動軌跡 ”預疋左耳或右耳特徵性轨跡而辨識該第-藍牙耳機係齡 用者的左耳或右耳上，及發射—識別結果給該藤方 模組。 依據另一構面， 左耳或右耳特徵性軌 依據另一構面， 組配來控制轨跡檢測 该藍牙耳機進一步包括：組配來儲存 跡之一儲存單元。 該藍牙耳機進一步包括：一開關係經 單元、識別單元及藍牙模組中之炱少 201233087 一者之啟動。 依據本發明之另一構面，提出一種使用藍牙耳機之音 訊播放方法，包括：一軌跡檢測步驟：於該藍牙耳機配置 在使用者耳上之處理程序期間，檢測該藍牙耳機之一運動 執跡；一識別步驟：藉由比較該藍牙耳機之運動執跡與預 定左耳或右耳特徵性執跡而辨識該藍牙耳機係配置在左耳 或右耳上；及一輸出步驟：藉該藍牙耳機，接收與輸出與 該識別步驟之識別結果相對應的左聲道或右聲道音訊信 號。 依據另一構面，該軌跡檢測步驟係在藍牙耳機執行， 及該識別步驟係在一音訊播放終端裝置執行，該方法進一 步包括：藉該藍牙耳機發射該藍牙耳機之運動軌跡給該音 訊播放終端裝置；及藉該音訊播放終端裝置通知指示該識 別步驟之識別結果之資訊給該藍牙耳機。 依據另一構面，於該藍牙耳機配置在使用者耳上之處 理程序期間，檢測該藍牙耳機之運動軌跡包括：於該藍牙 耳機配置在使用者耳上之處理程序期間，於三維方向檢測 該藍牙耳機之加速度；及依據該檢測得之加速度，計算該 藍牙耳機之運動軌跡。 依據另一構面，於該藍牙耳機配置在使用者耳上之處 理程序期間，檢測該藍牙耳機之運動軌跡包括：於該藍牙 耳機配置在使用者耳上之處理程序期間，於三維方向檢測 該藍牙耳機之加速度及該藍牙耳機環繞該等三維方向中之 至少一者之角速度；及依據該檢測得之加速度及角速度， 201233087 計算該藍牙耳機之運動執跡。 依據另-構面，藉由比較該藍牙 定左耳或右耳特徵性軌跡而辨識該藍牙運動軌跡與預 或右耳上包括：從該藍牙耳機之運動軌跡在左耳 運動執跡；及藉由比較該截取的運動軌跡邀而：取―部分 耳特徵性軌跡而_該藍牙耳 使=定左耳或右 右耳上。 罝在使用者的左耳或 寺及”它構面及雜參考如下詳 將更為明瞭。本發明之實施例係以細節揭二二圖式 明部分及圖式來方便瞭解具體實現本”下坪細說 徵之方式。但須瞭解本發明之_並非受此等實 化、改良及相當範圍。 _之範圍内的全部變 就一個實施例所述及/或例示說明之特徵可以 或相似的方式用在一或多個其它實施例中及/或 換其它實施例之特徵。 乂置 須注思此處包括/包含/具有」—詞係指特徵結構、也 件、步驟及總成之存在，而不排除一或多個其它特徵、 組件、步驟、總成或其組合之存在或添加。 、 本發明之多個構面藉由參考下列圖式將更為明瞭。圖 式之組成部件並非必要照比例繪製，而僅係為了更清晰明 白地例示說明本發明之原理及/或特徵。為了例示說明與描 述本發明之若干部件之方便，及增進對實施例之瞭解了 = 式中之某些部件可放大，例如在依據本發明實際上製造之 201233087 裝置實例中，比較其它部件放大該等部件。於本發明之圖 式或實施例描述的元件及特徵結構可組合在一或多個其它 圖式或實施例描述的元件及特徵結構。此外，相同的或相 對應的元件符號係用來表示在全部圖式中相同的或相對應 的組成部件，及也可用來表示於多於一個實施例中相同的 或相對應的組成部件。 圖式簡單說明 所含圖式組成說明書之一部分，用以例示說明本發明 之實施例及連同文字描述一起闡釋本發明之原理及/或特 徵。後文詳細說明部分中之附圖只表示本發明之部分實施 例，未付出任何創造性努力，熟諳技藝人士可基於此等圖 式而得知其它圖式，附圖中： 第1圖為依據本發明之一實施例立體聲藍牙耳機之示 意方塊圖； 第2圖為第1圖中第一軌跡檢測單元之實例1之方塊圖； 第3圖為依據本發明之一實施例第一耳機之前視圖； 第4圖為第3圖中第一耳機之右側視圖； 第5圖為第3圖中第一耳機之左側視圖； 第6圖為依據本發明之一實施例第一識別單元之示意 方塊圖； 第7圖為於本發明之藍牙耳機中藉第一耳機或第二耳 機具體實現之立體聲接收與輸出之流程圖； 第8圖為依據本發明之一實施例耳機軌跡檢測之流程 圖； 11 201233087 第9圖為依據本發明之一實施例左耳及右耳識別之流 程圖； 第10圖為第1圖中一執跡檢測單元之實例2之方塊圖； 第11圖為依據本發明之另一實施例耳機軌跡檢測之流 程圖； 第12圖為依據本發明之另一實施例藍牙耳機之示意方 塊圖； 第13圖為依據本發明之另一實施例音訊播放終端裝置 之示意方塊圖；及 第14圖為音訊播放之流程圖。 I：實施方式】 較佳實施例之詳細說明 須注意為了避免因不必要的細節而模糊化本發明，圖 式只顯示與本發明之解決辦法密切相關的裝置結構及/或 處理步驟，而刪除並非與本發明如此相關的其它細節。 因耳機由使用者一手戴在使用者左耳比較耳機由使用 者一手戴在使用者右耳具有不同轨跡，本發明之實施例係 依據耳機（第一耳機或第二耳機）由使用者戴在耳上的處理 程序期間，亦即依據運動軌跡來識別左耳或右耳，因而依 據識別結果自動控制耳機來接收相對應的左聲道信號戋右 聲道信號。如此，當使用者隨機佩戴兩個耳機，一個戴在 左耳而一個戴在右耳時，兩個耳機將自動控制來接收相對 應的左聲道信號及右聲道信號來實現立體聲，而未事先區 別左耳機及右耳機。 12 201233087 本發明之實施例意圖提供具有兩個分開耳機之藍牙耳 機裝置，亦即藍牙耳機裝置包括一第一耳機及一第二耳機 而介於其間並無任何機械連結或有線連結。如此對使用者 使用上更方便，也可只使用耳機中之一者。 於本發明之實施例中，第一耳機及第二耳機可經組配 來做軌跡檢測及左/右耳識別，因而接收來自相對應聲道之 信號。此外，第一及/或第二耳機可經組配來只進行軌跡檢 測，而耳機所定位的左/右耳之識別係設計來於音訊播放終 端裝置具體實現。 於本發明之實施例中，「音訊播放終端裝置」一詞包括 可透過藍牙模組輸出立體聲信號之全部裝置’諸如MP3播 放器、MP4播放器、行動電話、電子筆記型電腦、個人數 位助理器（PDA)、智慧型手機及可攜式通訊裝置等。 將以細節描述本發明之實施例如下。 實施例1 第1圖為依據本發明之實施例1立體聲藍牙手機之示意 方塊圖。如第1圖所示，本實施例之立體聲藍牙耳機包括， 第一耳機110及一第二耳機120。第/尊機11〇與第二耳機 120間並無連結，亦即並無機械連結或有線連結。第一耳機 110設置以一第一軌跡檢測單元111、-第一識別單元112及 —第一藍牙模組113。第二耳機120設置以一第二軌跡檢測 單元121、一第二識別單元122及一第二藍牙模組丨23。 第一軌跡檢測單元111係經組配來計算第一耳機之運 動軌跡。例如，第一軌跡檢測單元111係依據配置第一耳機 13 201233087 110至使用者耳朵之處理程序期間依據第一耳機之加速声 來計算第一耳機之運動轨跡。檢測得第一耳機之加迷度 後，透過加速度之雙重積分可獲得第一耳機之位移，藉此 獲得運動軌跡。 第一識別單元112係經組配來藉由比較第一耳機之運 動軌跡與預定左耳或右耳之特徵性軌跡而識別第—耳機 110係佩戴於使用者左耳或右耳，及將識別結果傳輸給第— 藍牙模組113。 第一藍牙模組113係經組配來接收由音訊信號播放終 端裝置（例如MP3播放器、MP4播放器、行動電話、pda或 透過藍牙模組輸出立體聲信號的可攜式電腦）之藍牙模組 傳輸的左聲道音號，及當藉第一識別單元112之識別結 果為左耳時，輸出左聲道音訊信號；及藉音訊信號播放終 端裝置的藍牙模組接收傳輸之右聲道音訊信號，而當識別 結果為右耳時輸出右聲道音訊信號。 同理，第一執跡檢測單元121係經組配來計算第二耳機 之運動軌跡。例如，第二__單元121係在將第二耳機 12〇佩戴歧帛者耳朵之處理料_，依據第二耳機之加 速度來計算第一耳機之運動轨跡。 第二識別單元m係經組配來經由比較第二耳機之運 動轨跡與預定左耳或右耳之特徵性軌跡而識別第二耳機 120係佩戴於使用者左耳或右耳， 今从及傳輪識別結果給第二 藍牙模組123。 第二藍牙模組123係經 組配來接收由音訊信號播放終 14 201233087 w置之藍牙模組所傳輸的左聲道音訊信號，及當藉第二 識別單凡122之識別結果為左耳時，輸出左聲道音訊信號， 及接收由音訊信號播放終端裝置之藍牙模組所傳輸之°:聲 道音訊信號，及當識別結果為右耳時輸出右聲道音訊信號。 於本發明之一具體實施例中，第一藍牙模組ιΐ3及第二 藍牙模組123不僅可進行無線信號接收，同時也可進行無線 信號發射。 於本發明之實施例中，第一耳機11〇及第二耳機12〇可 具有相同或不同形狀（例如可彼此分開設計或可設計來具 有對稱性形狀）’只要其可自動識別左耳/右耳及分別地接收 及輸出相對應聲道的音訊信號即可。 此外，於本實施例中，第一耳機及第二耳機分別可設 置一第一開關及一第二開關。第3圖顯示第一開關】係經 組配來控制第一軌跡檢測單元111、第一識別單元U2及第 —藍牙模組113中之至少一者的啟動。例如，第一開關u4 可完全控制第一軌跡檢測單元111、第一識別單元112及第 —藍牙模組113的啟動；或經由循序按壓第一開關ι14的時 間來分別控制第一軌跡檢測單元111、第一識別單元112及 第一藍牙模組113的啟動。例如，當第一開關114被按壓第 一次時只有第一藍牙模組113啟動，當第一開關114再度被 按壓時然後啟動第一軌跡檢測單元111及第一識別單元 112，當開關被按壓第三次時全部單元及模組皆關閉。或者 當第一開關114被按壓第一次時啟動第一藍牙模組113，而 當第一開關114被循序地按壓第二次時同時啟動第一藍牙 15 201233087 模組11；3、第一軌跡檢測單元U1及第一識別單元112等。如 此，當欲接收單聲道語音信號時，只有藍牙模組啟動，第 軌跡檢測單元111及第一識別單元i〗2關閉，使得藍牙耳 機可經由藍牙模組直接接收語音信號而無需識別左耳/右 耳。此處前述第一開關之操作僅供舉例說明，本發明並非 囿限於此。 同理，第一開關（圖中未顯示，但例如如前述係設置於 第二耳機）係經組配來控制第二軌跡檢測單元121、第二識 別單元122及第二藍牙模組123中之至少一者的啟動。第二 開關之組配可與第一開關相同。第一開關及第二開關可設 置在第一耳機及第二耳機之殼體上的任何適當位置而不受 如第3圖例示說明之位置所限。 本實施例結合實例說明如下。 實例1 如第2圖所示，於實例1中，第一軌跡檢測單元lu包 括：一第一加速度感測器1111及一軌跡計算單元1112。第 一加速度感測器1111較佳為三軸加速度感測器，其係組配 來於第一耳機佩戴於使用者耳朵之程序期間於三維方向 (例如三軸加速度感測器之三個座標軸方向）檢測第一耳機 之加速度(線性加速度）。軌跡計算單元1112係經組配來依據 第一耳機於三維方向之加速度而計算第一耳機之運動軌 跡。第一加速度感測器1111可配置在第一耳機之内部或外 部之任何適當位置，但非限於如第3圖所示位置（第3圖之第 一轨跡檢測單元係設置於第一耳機内部）。 16 201233087 同理，第二軌跡檢測單元121可包括：一第二加速度感 測器（圖中未顯示）及一第二軌跡計算單元（圖中未顯示）。第 二轨跡感測器較佳為三軸加速度感測器，其係組配來於第 二耳機佩戴於使用者耳朵之程序期間檢測第二耳機於三維 方向（例如三維加速度感測器之三個座標軸方向）之加速度 (線性加速度）。第二執跡計算單元係經組配來依據第二耳機 於二維方向之加速度而計算第二耳機之運動軌跡。第二加 速度感測器可設置於第二耳機内部或外部之任何適當位 置。 三軸加速度感測器為目前廣為人所使用的一種微機電 系統(MEMS)元件’其可製造成極小尺寸因此可應用於行動 終端裝置諸如行動電話。三軸加速度感測器不僅可用於遊 戲動作的控制，同時也可用於手持式裝置的姿勢識別及使 用者介面(UI)之操作。此外，於實際應用中，於運動期間所 測量物件之某個特徵點的加速度之三維成分（例如彼此垂 直之X、Y、Z軸之加速度成分）可準確地收集，只要三軸加 速度感測器係放置於特徵點即可。然後經由加速度之成分 之雙重積分可獲得資訊，諸如特徵點之運動軌跡。基於三 軸加速度感測器追蹤三維空間運動轨跡係介紹於參考文獻 「基於加速度錶之新穎3 D追蹤系統」，華中科技大學期刊 (自然科學）’第06卷第37期2009年。 三軸加速度感測器主要包括壓電、電容'熱流、壓阻、 隧道式 '共振、表面聲波等類型。此等感測器的最基本原 理係透過加速度造成某個介質的變形，測量該介質的變形 17 201233087 量，透過相關電路轉換成為電壓及然後輸出，如此加速度 感測器為由介質及輔助電路所組成的電機元件。本發明使 用之三軸加速度感測器可以是但非限於任一型前述感測器 或其它感測器。 藉使用配置在物件上的三維加速度感測器來檢測一物 件於三維方向之加速度’及依據於三維方向之加速度透過 雙重積分來計算該物件之相對運動軌跡屬於先前技術，因 此於此處不再詳加說明。 後文中藉耳機識別左耳/右耳係以第一耳機丨10作為實 例。 為求方便說明與瞭解，於本發明之實施例中，三軸加 速度感測器之三個軸之方向為預定方向，例如，第一尊機 之聲音輸出方向為方向X，從耳機底至頂之方向為方向z， 及方向Y係依據方向X及Z透過右手法則決定。如此，於第4 圖所示第一耳機之右側視圖中，X軸之正向為水平朝右，Z 軸之正向為垂直向上，及γ軸方向係依據乂及2軸方向透過 右手法則決定（亦即垂直於該圖所顯示的紙面之主面，例如 方向向外）。此外，使用者所在的三維xyz空間定義如下： 從使用者左耳至右耳的筆直方向為_之正向，使用者身高 方向（垂i向上方向）為球之正向，及•方向係經由右手法 則決定…亦即從前至後之方向且垂直於xz平面方向為y車由之 正向。如此，於第一耳機110佩戴於左耳之情況下，三雉加 速度感測器之三個轴Χ、γ、ζ具有與空間xyz的三個轴之相 同方向，換言之，X軸方向係與X軸方向一致，γ軸方甸係 201233087 與y軸方向一致，及Z軸方向係與z軸方向一致。 舉例言之，於如第4圖所示的第一耳機使用者左手佩戴 於左耳之處理程序期間，所執行的操作通常包括： 1) 使用者以左手握住第一耳機（聲音輸出方向係朝 右），舉起右臂因而將第一耳機朝向左耳外側移動； 2) 使用者將第一耳機放置於左耳(例如將第一耳機放置 於左耳廓），然後停止移動第一耳機。 於該處理程序期間，三軸加速度感測器之三個軸X、 Y、Z具有與空間xyz之三個軸相同的方向，換言之，X軸方 向係與X軸方向一致，Y轴方向係與y軸方向一致，及Z軸方 向係與z軸方向一致。此時，第一耳機之軌跡在空間xyz反 映如下：首先沿著y軸正向（Y軸正向）及z軸正向（Z軸正向） 移動，然後沿著X軸正向（X軸正向）移動，及最終停止。當 耳機係沿著y及z軸正向移動時，也同時存在有沿X軸正向或 負向移動。 針對另一個實例，第5圖所示第一耳機藉使用者右手而 佩戴於右耳的處理程序期間，執行的操作通常包括： 1) 使用者將第一耳機（聲音輸出方向朝左)握在右手，舉 起前臂而將第一耳機移動至右耳外側； 2) 使用者將第一耳機放置於右耳上(例如將第一耳機放 置於右耳廓），及然後停止第一耳機的移動。 於該處理程序期間，三軸加速度感測器之三個轴X、 Y、Z具有與空間xyz之三個軸方向不同方向，例如X軸方向 係與X轴方向相反，Y轴方向係與y軸方向相反，而只有Z軸 19 201233087 方向係與2軸方向一 反映如下：首先Μ 時，第—耳機之轨跡在空間听 移動’然後沿X軸負：:向(Υ軸負向此軸正向(Ζ軸正向) 機係沿yh軸之正^向）移動，及最終停止。當耳 負向的移動。^動時，也同時存在有沿雄之正向或 跡。:二::佩•左耳及右耳時具有不同的運動轨 手將耳機佩戴到耳平之:序二：之加速度而計算在用 杨里 卞之程序期間，第—耳機相對於其初始 位置之相對運動執跡。 於本發明之實施例中，—或多個左耳特徵性轨跡及— =個右耳特徵性軌跡可在使用者將耳機佩戴在左耳及右 :’依據可此的轨跡預先建立，及然後儲存於藍牙耳機 :單元左耳特徵性軌跡及右耳特徵性軌跡可使用三 匕-速度感測器之二個轴方向相對於初始檢測位置之座標 指:’或可使用於先前界定空間Χ、γ、ζ之三維座標系的 座標指示。當使用空間χ、γ、ζ之座標來指示左耳及右耳 特徵性軌跡時，藉三軸加速度感測器之三維座標指示的左 耳及右耳賴性軌跡可依據預定對映關係而對映至該座標 系來形成於空間X、γ、ζ之左耳及右耳特徵性執跡。預定 對映關係可依據三軸加速度感測器之三軸座標與空間χ y Ζ 座標間之關係測定。更明確言之，對映關係可以是當耳機 佩戴在左耳時，三軸加速度感測器之三軸方向與空間XyZ之 三軸方向間之關係(後文稱作為左耳對映關係）。舉例言之， 20 201233087 左耳對映關係可以如下：= 空間xyz之三轴方 σ速度感測器之三轴方向與 轴方向與y轴方向一致，及ζ轴即 =向與χ軸方向一致，Υ 對映關係可以是當耳機佩戴在右;方向-致。此外^ 之三軸方向盥办門 一 守—軸加速度感測器 耳對映關·關係(較稱作為右 向係與•方向相反，㈣方向丄映關係可以如下:X轴方 向係與z轴方向—致^、y軸方向相反，及z轴方 並非囿限於此。 ^亥4對映關係僅為實例，本發明 於本發明之另一實施例中， 執跡時’藉三軸加速度感測器之=右:特徵性 耳相對應的可能執跡各自可同時之左耳及右 標指示之二或多個左2 相對應於由空間狀座 對應於左耳之特徵5右耳特徵性軌跡。舉例言之，相 跡’'同理，㈣應於右耳之耳特徵⑽ 映關係及右耳對㈣^特徵性_各自可依據左耳對 右耳特徵性執跡。此减“不的兩個 牙气機之儲存單元。耳及右耳特徵錄跡可儲存於藍 得之運動勤耳機係佩戴於左耳或右耳可藉由比較耳機計算 別。具體4與Γ先儲存的左耳及右耳特徵性軌跡加以識 之左耳賴性勤若計算得之運動軌跡係最佳符合預先儲存 特❹軌㈣之某—者(亦即最健配)，則該耳機將 21 201233087 識別於佩戴在左耳；而若計算得之運動軌跡係最佳符合預 先儲存之右耳特徵性軌射之某—者（亦即最佳匹配），則該 耳機將識別於佩戴在右耳。 須注意’若預先儲存的左耳及右耳特徵性軌跡係以三 轴加速度感顧之二維座標指示，則耳機之實際軌跡可與 預先儲存的執跡直接比較。若預絲㈣左耳及右耳特徵 性軌跡係的fa1xyzu維座標指示則當耳機之實際軌跡 係與預先儲叙㈣味時，_比較可在實際檢測得之 軌跡座標依據預定對映關係'(例如左耳對映㈣或右耳 映關係）對映至空間xyz之座標系後進行。更明確言之，若 預先儲存之左耳及右耳特徵⑽跡係依據左耳對映 對應至空間听座標系，則當耳機實際位置係與預先儲2 特徵性執跡比較時，軌跡比較將在實際檢測得之軌跡依據 左耳對映關係㈣映至空間xyz之座標緖進行；若預先儲 2之左耳及右耳特徵性轨跡係依據右耳對映義而對應至 工間听座標系，則當耳機實際位置係與預先儲存之特徵性 執跡比較時，軌跡比較將在實際檢測得之軌跡依據右耳對 、關係而對應至空間xyz之座標系後進行。 左/右耳識別實例敘述如前。依據該實施例，當使用者 =用耳機時’各個耳機可自動判定其係定位在哪—個耳 水，因此正確地接收與播放相對應聲道之音訊信 實現立體聲。 而 £貫際操作中，當使用者以左手或右手握住耳機及舉起 《移動耳機至耳朵外側時，耳機也將沿著X軸之正向或負 22 201233087 ㈣動’同時沿著y轴及z軸移動，此時，沿X軸之正向或負 向移動對左耳/右耳之識別無影響’亦即本發明之具體實現 不叉衫響。只要耳機於空間xyz之軌跡首先係沿著y軸及2軸 之正向移動及錢mx軸之正向移動，則耳機最終所定 位的耳朵可識別為左耳；及只要耳機於空間xyz之軌跡首先 係沿著y軸及z軸之正向移動及然後係沿著X軸之負向移 動’則耳機最終所定位的耳朵可識別為右耳。當模擬左耳 或右耳之特徵性執跡時，基於左耳或右耳執跡特性可建立 多個左耳或右耳特徵性軌跡。 須注意’於實際操作期間，當耳機係藉左手或右手拾 取時，通常尚未確定耳機之初始位置。舉例言之，使用者 可從公事包内取出耳機佩戴在耳朵上，或從桌面取出耳機 佩戴在耳朵上，但總而言之，當耳機由使用者佩戴在左耳 時的耳機軌跡係與當耳機由使用者佩戴在右耳時的軌跡不 同’原因在於依據手臂的移動曲線，當耳機佩戴於左耳時， 經常性有一軌跡節段係首先沿y轴及Z軸之正向移動（也可 能沿X軸之正向或負向移動，同時沿y軸及Z軸之正向移 動），然後沿X軸之正向移動，及最後停止移動。當耳機係 佩戴在右耳時，經常有一軌跡節段係首先沿丫軸及z軸之正 向移動（也可沿X軸之正向或負向移動，同時沿7軸及Z軸之 正向移動），然後沿χ軸之負向移動及最後停止移動。至於 本發明之實施例’當第一耳機之移動軌跡與預定左耳或右 耳特徵性軌跡比較來識別第一耳機係佩戴於使用者左耳或 右耳時’較佳只有第一耳機之部分運動執跡可與預定左耳 23 201233087 或右耳特徵性軌跡比較 初始部分。“主你 考慮第一耳機之運動軌跡的 進牛 ，’如6圖例示說明，第一識別單元112可 進了括:第-載取單元1121及第一測定單元m2。 端載取部=:Γ:Γ來從第一耳機之運動轨跡尾 軌跡 、0此處使用，「尾端」一詞係指運動 持續_端或端部。例如運動軌跡之截取部分可以是依據 但非ΡΡ或軌跡長度而從軌跡尾端截取的某個比例（例如 跡對二8G%等)之運動細，因而減少初始時間軌 》準確度的影響。舉例言之，在停止移動之瞬間（亦 =止佩戴第_耳機之程序瞬間）前的預㈣期期間，可從 ㈣動執跡截取一運動軌跡。例如如第4圖所示，若用左手 佩戴第—耳機在左耳耗時約丨秒，則第一截取單元ιΐ2ι可戴 在佩戴第彳機於左耳之操作完成前冰、内的耳機之運 動軌跡來作為比較物件。 第-測定單元1122係經組配來藉由比較所截取之運動 U耳或右耳之駭特徵性細、而制第-耳機係佩 戴於使用者左耳或右耳，及將識㈣果發射給第—藍牙模 組。當進行比較時，若截取的運動軌跡 左耳或右耳特徵性執狀純^H & 行座標對映。 T系不I則可在比較前進 耳耳機之第—識別單如2識別第-耳機係在左 =端發射給第—藍牙模組113，其在音訊信號播 輸藍牙独之左聲道相對應音訊信號及 輪出左㈣峨。_，當第H識別單元 24 201233087 112識別第一耳機係在右耳時，識別結果發射給第—藍牙模 組113,其在音訊信號播放终端裝置接收來自藍牙模組之右 聲道相對應音訊信號及輸出右聲道音訊信號。 至於第二耳機，無論第二耳機之結構是否與第一耳機 相同，左耳/右耳可❹與第—耳機完全㈣之方式進行識 別’只要第二耳機之三軸力Μ度感測器之三轴方向的定義 與第一耳機相同即可。 因此於本實例中，第二耳機之第二識別單元較佳可包 括.一第二截取單元及一第二測定單元。 第二截取單元係經組配來從第二耳機之運動軌跡尾端 截取部分運動㈣。運動軌跡之餘部分例如可以是依據 持續時間或轨跡長度而從軌跡尾端截取的某個比例（例如 但非限於9G%、8叫）之運喊跡因此減少受初始時間 執跡對識別料度的影響。舉例言之，停止移動前瞬間（亦 即停止佩戴第二耳機之程序瞬間）之前的-預定時間週期 期間之運純跡可從第二耳機之運動執跡截取。舉例言 之’若如㈣所示、鐘制在以左手將第二耳機佩 戴於左耳貝i第—截取單元可截取第二耳機佩戴於左耳之 操作完成前1秒鐘簡的耳機之運動軌跡作為比較物件。 第-測定單凡係組配來藉由比較截取的運動軌跡與預 定左耳或右耳之特徵性⑽而朗第二耳機係佩戴於使用 者左=或右耳及將識別結果發射給第二藍牙模組。 田第-耳機之第二識別單元122識別第二耳機佩戴於 工耳時制、.、。果可發射給第二藍牙模組⑵，其於音訊信 25 201233087 號播放終端裝置接收來自藍牙模組之左聲道之相對應音訊 信號’及然後輸出左聲道音訊信號。同理，當第二耳機之 第二識別单元122谶別第—耳機佩戴於右耳時，識別結果可 發射給第一藍牙模組123 ’其於音訊信號播放終端裝置接收 來自藍牙模組之右聲道之相對應音訊信號，及然後輸出右 聲道音訊信號。 依據前述實例，當使用者使用耳機時，耳機可自動判 定其所定位的耳朵，因此正確地接收及播放相對應聲道之 音訊信號，因此實現立體聲。 此外，若第一識別未能識別左耳/右耳，則可取最新識 別結果作為目前識別結果，及輸出目前識別結果給第一藍 牙模組因而確保藍牙模組可接收音訊信號。同理，若第二 識別未能識別左耳/右耳，則可取最新識別結果作為目前識 別結果，及將目前識別結果輸出給第二藍牙模組。此處最 新識別結果僅是舉例說明，本發明並非囿限於此° 如前述，本發明之實施例中的立體聲藍牙耳機可自動 識別左耳/右耳而無需使用者來區別，因而正確地接收與輸 出相對應聲道之音訊信號，其不僅提供方便性給一般使用 者，同時也解決盲人難以使用習知藍牙耳機收聽立體聲音 樂的問題。 於本發明之另一實施例中，第一耳機及第二耳機也可 設置無線充電式蓄電池，因此可使用既有無線充電技術來 供應能量，更進一步改良使用藍牙耳機之方便性。 由前述實例可知，本發明之實施例進一步提供一種經 26 201233087 由使用藍牙耳機接收及輸出立體聲之方法。如第7圖所示， 該方法包括對第-耳鼓第二耳機二錢行下列步驟： 步驟S610 :軌跡檢測步驟：於耳機（第 機靡戴制者《之料_，依料狀度= 機之運動軌跡。 异耳 、步驟S620 :識別步驟：經由比較耳機之運動執跡與預 疋左耳或右耳之特徵性軌跡來識別耳機係賴於左耳或右 耳。 、儿 丨。之如蝻述，只要耳機於空間xyz之軌跡首先係 y軸及z軸之正向移動及㈣沿χ軸之正向移動，則耳機最 後定位的耳朵可識別為左耳；以及只要耳機於空間¥之執 亦首先係y轴及2軸之正向移動及然後沿X轴之負向移 動，則耳機最終岐位之耳朵可識別為右耳。、 v驟S63G .輪出步驟：當耳機被識別為佩戴在使用者 耳夺β 又置在耳機上的藍牙模組接收及輸出左聲道音訊 。虎及田耳機被識別為佩戴於使用者右耳時，接收及輸 出右聲道音訊信號。 於本毛明之較佳實施例中’如第8圖所示，步驟s6i〇 可進一步包括： v驟S611 ’於佩戴耳機於使用者耳朵之程序期間檢測 耳機於三維方向之加速度；及 步驟S612 .依據耳機於三維方向之加速度計算耳機之 運動轨跡。 於本發明之較佳實施例中，如第9圖例示說明，步驟 27 201233087 s_可進-步包括： 步驟S621 :從耳機之運動軌跡尾端截取部分運動軌 、例如，可從耳機之運動軌跡截取停止佩戴耳機之程序 瞬間則於預定週期期間之運動軌跡。 v驟S622 .經由比較截取之運動軌跡與預定左耳或右 耳特徵〖生轨跡來識別耳機係佩戴於使用者左耳或右耳。 依據本發明之前述實施例，藉由自動判定耳機定位在 耳木了正確接收及播放相對應聲道之音訊信號，因 而實現立體聲輸出。 實例2 如上實施例1舉例說明當藍牙耳機係以右手佩戴於右 耳及以左手佩戴於左耳時，藉藍牙耳機識別左耳及右耳。 s藍牙耳機仙右手賴於右耳及以左手佩戴於左耳時， 藍牙耳機之移動為實質上平移移動，如此只使用藉三轴加 速度感測器檢測得於三軸方向之線性加速度，藍牙耳機之 執跡檢測單元可簡單且準確地計算耳機之運動軌跡。即使 耳機之初始移動並非平移移動，然後藉由刪除初始運動軌 跡，而只比較耳機的整個運動執跡之後部與該特徵性軌 跡’也可實現左耳及右耳的識別。 但至於更複雜的運動，例如於使用者右手將耳機放置 於右耳或使用者右手將耳機佩戴於左耳之處理程序期間， 耳機將旋轉，此時難以只使用三維加速度感測器來準確地 計算在空間xyz中耳機的運動軌跡。 舉個實例’如第4圖所示，使用者用左手將第—耳機佩 28 201233087 戴於右耳之處理程序期間，動作例如可包括： 1) 使用者以左手握著第一耳機（聲音輸出孔朝右） ，及舉 起前臂因而將第一耳機移動至右耳外側，然後旋轉第—耳 機使其變成第5圖舉例說明之視圖狀態，亦即聲音輸出孔係 朝左；或於使用左手握住第—耳機及移動第一耳機至右耳 外側之處理程序期間，使用者可旋轉第一耳機，使得聲音 輸出孔朝左。 於先則定義之空間xyz中與此動作相董子應的實質執跡 如下：沿x、y、z轴之正向移動’同時或隨後旋轉耳機使得 耳機之聲音輸出孔朝左。 2) 使用者將第-耳機佩戴於右耳(例如將第—耳機佩戴 於右耳廓）’及然後停止動作。 於空間xyz與此動作相對應之實質轨跡如下：沿χ轴之 負向移動及然後停止。 如第5圖所示，於使用者用右手將第_耳機佩戴在左耳 之程序期間，動作例如包括： 1)使用者以右手握著第—耳機(聲音輸丨孔朝左），及舉 起則I因而移動第_耳機至左耳外側，然後旋轉第一耳機 使其變成第4圖所示之視圖狀態，亦即聲音輸出孔朝右；或 於以右手握住第-耳機及將第—耳機移動至左耳外側之處 理程序卿，使用者可㈣第—耳機使得聲音輸出孔係朝 右。 ;工門XyZ與此動作相對應之實質執跡如下：沿X轴之 負向及y、Z軸之正向移動，及同時或接續旋轉耳機使得耳 29 201233087 機之聲音輸出孔朝右。 2)使用者將第一耳機彻 左耳廓），及舰停耳(㈣第—耳機佩戴於 於空間XyZ於此動作相對應之實質執跡如下： 正向移動及然後停止。 於刖述情况下’耳機之移動不僅包括平移，同時也包 括旋轉，如此耳機之實際運動軌跡為由平移與旋轉所组成 的複合運動，此時無法只基於藉三軸加速度感測器檢測得 之線性加速度計算運動轨跡，也將檢職牙耳機環繞三軸 加速度感·之三㈣向的_角速度。藉㈣行耳機於 三轴加速度感測H之三軸方向之加速度積分，可獲得耳機 之平移速度，耳機沿三軸之平移位移可藉由執行加速度之 雙重積分计算’耳機環繞三轴之旋轉角可經由使用耳機之 旋轉角速度計算，如此容易測定耳機於空間之相對位置， 而可獲得耳機之運動轨跡 由於依據物件之加速度及角速 度什算物件的運動軌跡為先前技術，故於此處不再詳細說 明。「使用加速度表及陀螺儀之搖攝運動屬性測量」作者Ca〇 Li等人（中國科學儀器期刊，第4期2〇〇4年）介紹依據環繞 X、Y、Z軸之角速度及X、γ、z方向之加速度執行三度空 間定向。 於本實例2中，如第10圖所示，為了達成耳機之移動執 跡更準確的檢測，藍牙耳機中之各耳機（第一耳機及第二耳 機）之軌跡檢測單元（第一軌跡檢測單元及第二轨跡檢測單 元）不僅包括第一加速度感測器1111，同時也包括角速度感 30 201233087 測器1113。於本實例中，軌跡檢測單元以外之組件係與實 例1相同，如此於此處刪除該等組件之詳細說明。 第一加速度感測器I111較佳為組配來於耳機佩戴於使 用者耳朵之處理程序期間檢測耳機於三維方向（例如三座 標軸)之加速度(線性加速度）的一種三軸加速度感測器。 角速度感測器1113係組配來於耳機佩戴於使用者耳朵 之處理程序期間檢測耳機環繞三軸中之至少一者之角速 度。例如，角速度感測器可經組配來檢測耳機環繞三軸(X、 Y、Z軸）之角速度’或只檢測耳機環繞z軸或z、X軸之角速 度。當檢測環繞三軸之角速度時，可最準確檢測耳機之運 動軌跡。於本發明之實施例中’角速度感測器可以是陀螺 儀。 軌跡計算單元1112係經組配來依據藉加速度感測器檢 測得之加速度及藉角速度感測器檢測得之角速度，計算耳 機之運動軌跡。檢測期間，當耳機係在初始位置(檢測起始 位置）時’藉由取三軸加速度感測器之三個軸X、γ、z所建 立之座標系作為參考座標系，轨跡計算單元可依據加速度 及角速度計算耳機相對於初始位置之運動轨跡。 於本發明之實例中，第一加速度感測器1111及角速度 感測器1113可整合，例如具體實現為六軸感測器。 使用此種軌跡檢測結構，於耳機佩戴於耳朵之處理程 序期間’於三軸座標系中，耳機相對於初始檢測位置的運 動軌跡可檢測耳機是否旋轉。 於本實例中，第一耳機及第二耳機可具有完全相同結 31 201233087 構。 於實例2中，於三軸加速度感测器之三個軸方向及空間 xyz之三軸方向可類似實例丨界定。隨後，當使用者將耳機 佩戴於左耳及右耳時，可依據可能的轨跡預先建立多個左 耳特徵性軌跡及多個右耳特徵性軌跡，及然後儲存於藍牙 耳機之儲存單元。藉由取藉三軸加速度感測^之三個轴χ、 υ、ζ於初始位置（檢測起始位置）所建立的座標系（後文稱作 為初始位置座標幻做為參考座標系，或取空間xyz之三維 座標系作為參考座標系，可指示左耳特徵性軌跡及右耳特 徵性執跡。當空間xyz之鋪系用來指示左耳及右耳之特徵 性執跡時，藉初始位置座標系所指示之左耳及右耳特徵性 軌跡可依據預定對映關係對映至空間xyz座標系來形成於 空間π之左耳及右耳特徵性㈣。敎對映關係可測定如 下：初始位置座標k軸χ、γ、ζ與檢測完成位置之轴χ、 Γ, 之i向關係(左耳或右耳）可使用角速度感測器計 a ，則凡成位置(左耳或右耳)轴χ、Υ、z與空間xyz之 二厂間之對應關係可配置為預定對映關係(例 座：系—映關:及/或右耳對映關係)，如此，初始位置 係及财系間之對映關係可使用前述角向關 得：執左耳或右耳可藉由比較耳機計算 識別。舉個實例，若^=左耳或右耳之特徵性執跡加以 存之左耳特#之運動轨跡係最佳符合預先儲 軌跡中之某-者(亦即最佳匹配 > 則該耳機 32 201233087 將識別為佩戴於左耳；戋 預先儲存之右耳特純狀運動軌跡係最佳符合 耳機將識別為佩戴於右耳。之某一者(亦即最佳匹配），則 預先儲存之左耳及右耳特徵性軌跡係藉屬 =:Γ初始位置座標系指示，則耳機之實際執跡 儲存之執跡直㈣較，若縣儲存之左耳及右耳 特徵性轨跡係藉空間xyz之三維座標指示日 與預先儲存之轨跡比較時，依據實際軌跡之參考 空間哪之座標系間之對映關係，在實際檢測軌跡 之座U映至空間xyz之座標系後進行軌跡之比較。對映關 係測定如下：於轨跡起始位置之軸χ、γ、ζ與轨跡結束位 .t γ ZFa1<胃㈣係(左耳或右耳)可使用角速度感 測器計算，而於_結束位置(左耳或右耳)之軸Χ、γ、ζ 與軸x、y、z間之相對應關係為預定對映關係(例如前述左 耳對映_及/或右耳對映_)，如此，實際軌跡之參考座 標係與空間xyz之座標系間之對映關係可使用前述角向關 係及預定對映關係測定。 左耳/右耳識別實例列舉如前述。依據一個實施例，當 使用者使用耳機時，耳機可自動判定其定位在哪一個耳 $，因此正確的接收及播放相對應聲道之音訊信號及因而 貫現立體聲。比較實施例1 ’進-步改良識別準確度。 本實例中接收及輸出立體聲之方法係與軌跡檢測步驟 (S610)之實例1方法不同。於本實例中，例如軌跡檢測步驟 包括·於耳機（第一耳機或第二耳機)佩戴於使用者耳朵之處 33 201233087 理程序期間，依據耳機之加速度及角速度計算耳機之運動 軌跡。加速度可以是耳機於預定三軸方向（例如前述軸x、 γ、ζ)之加速度。角速度可以是耳機環繞三軸中之至少一軸 (例如前述Ζ軸)旋轉之角速度。 較佳如第11圖所示，軌跡檢測步驟進一步包括： 步驟S711 :於耳機佩戴於使用者耳朵之處理程序期 間，檢測耳機於三軸(例如三度空間）方向之加速度及環繞至 少一軸之角速度；及 步驟S712 :依據耳機於三軸方向之加速度及環繞至少 一軸之角速度，計算耳機之運動轨跡。 本實例之其它步驟係與實例1中之相對應步驟相同。 依據前述本發明之實例，藉自動判定耳機佩戴於哪一 耳，可正確地接收及播放相對應聲道之音訊信號，因而實 現立體聲輸出。 實施例2 於實施例2中，依據耳機之運動軌跡識別左耳/右耳係 配置來於音訊播放終端裝置進行。第12圖為依據本實施例 之藍牙耳機（第一耳機)之方塊圖。第13圖為依據本實施例之 音訊播放終端裝置之方塊圖。 如第12圖所示，第一耳機可包括—軌跡檢測單元〖2 j及 一藍牙模組123。軌跡檢測單元係組配來於耳機佩戴於使用 者耳朵之處理程序期間檢測第一耳機之運動軌跡。第二軌 跡檢測單元121可具有與第2圖或第1〇圖所示轨跡檢測單元 之相同結構，如此於此處刪除軌跡檢測單元121之細節描 34 201233087 ；C —模、'且123係組配來發射藉軌跡檢測單元121檢測得 =動軌祕音放終糾置，及從音_放終端裝置 聲_«令或右聲道触指令。如此，藍牙模組 可依據左聲道接㈣令或右聲道触指令從音訊播放 ；:端裝置純相對應的左㈣音難號或右聲道音訊信 唬。 較佳，第-耳機進_步設置一控制開關，其係組配來 工制執跡檢測單元121及藍牙模組123中之至少一者的啟 動0 如第13圖所不，音訊播放終端裝置例如包括：-CPU 藍牙模組(也稱作為終端裝置藍牙模組)3、一音訊 =放單元320、-識別單元33〇、一顯示器㈣、一資料傳輸 "面350、及-記憶體36〇。音訊播放單元32〇例如係組配來 播放音《案。記憶體36G係組配來儲存f料諸如音訊檔 ”於本貫把例中，&己憶體36〇進一步係組配來儲存預先建 立之左耳及右耳特徵性軌跡。顯示器(例如lcd)係組配 來顯不物件諸如影像及文字M專輸介面⑽係組配來使用外 部裝置傳輸資料。 於本實施例巾，藍牙模組31〇可無線㈣發射及接收。 例如’藍牙模組31G可從第耳機接收第一耳機之移動轨 跡，及輸出該移動軌跡給識別單元33〇。識別單元33〇係組 配來藉由比較第-耳機之運純跡與預定左耳或右耳特徵 性軌跡來識別第-耳機是否佩戴於制者左耳或右耳，及 透過藍牙模組310通知第-耳機有關藉識別單元33〇指示識 35 201233087 別結果之資訊，亦即與識別結果相對應之左聲道接收指令 或右聲道接收指令。更明確言之，當識別結果為左耳時， 識別單元330產生左聲道接收指令，及經由藍牙模組310傳 輸給第一耳機；而當識別結果為右耳時，識別單元330產生 右聲道接收指令及透過藍牙模組310發射給第一耳機。左或 右聲道接收指令可以是本身識別結果。 較佳，識別單元330可包括如第6圖所示戴取單元1121 及測定單元1122’及細節係與實例1相同，如此於此處再度 不做描述。 當有兩個藍牙耳機時，另一個藍牙耳機（第二耳機）具有 與第一耳機完全相同的組態且執行相同操作。或者軌跡檢 測單元並未設置於第二耳機，而音訊播放終端裝置直接發 射識別結果，此點與依據第一耳機之識別結果而發射第一 耳機之識別結果給第二耳機相反。㈣，識別單元33〇進— 步係組配來當第-耳機之識縣果為左耳時，㈣藍牙模 組31Q而發射右聲道接收指令給第二藍牙耳機；及當第一耳 機之識別結果為右耳時，控制藍牙模㈣㈣發^聲 收指令給第二藍牙耳機。 前述音訊播放終端褒置及第一耳機可組成如第14 示之音訊㈣緖。音職放仏細下解職放音訊 步驟謂：例如當第—耳機欲㈣㈣ 檢測運動軌跡之 戴第-耳機於使用者耳朵之處理程序期間之: 跡檢測單元121檢測第一耳機之運動軌跡 卞风炙軌 36 201233087 方式係與實施例1相同。舉例言之，第-耳機之運動轨跡 才_ __ _ —耳機於三軸方向之加速度計算，或依據第—耳機 於二軸方向之加速度及環繞至少一軸之角速度 刪除詳細”部分。 處 ，步驟S820··第一耳機經由藍牙模組113發射第一耳機之 跡给音訊播放終端裝置。 相對應地，音訊播放終端裝置經由藍牙模組31〇 胃耳機之運動轨跡。 步驟S830:音訊播放終端裝置之識別單元33〇基於第一 耳機之運動軌跡而識別第一耳機係佩戴於使用者左耳或右 〇 更明確言之，經由比較第一耳機之運動軌跡與預定左 耳或右耳特徵性軌跡，識別單元33〇識別第—耳機係佩戴於 使用者左耳或右耳。 更佳，步驟S830進一步包括下列步驟··從第一耳機之 運動軌跡尾^截取部分運動轨跡；及經由比較所截取的運 動軌跡與預定左耳或右耳特徵性執跡來識別第-耳機係佩 戴於使用者左耳或右耳。 運動執跡之截取部分例如可以是依據持續時間或軌跡 長度而從軌跡尾端擷取的某個比例（例如但非限於9 〇 %、 80/〇等)之運動軌跡’因此減少初始時間執跡對識別準確度 的影響。 步驟S 840 ··識別單元3 3 〇將指示識別結果之資訊經由藍 牙模組310通知第一耳機。 37 201233087 例如識別單元330將識別結果相對應之左或右聲道截 取指令經由藍牙模組310發射至第一耳機。與識別結果相對 應之左及右聲道接收指令可以是識別結果本身，例如但非 限於「左」或「右」’或類似「0」或「1」之資訊識別為「左」 及「右」。 步驟S850 :依據資訊指示得自音訊播放終端之識別結 果，第一耳機接收及輸出與識別結果相對應之左聲道音訊 信號及右聲道音訊信號。 例如’第一耳機經由藍牙模組113接收來自音訊播放終 端裝置之左或右聲道接收指令，及依據左或右聲道接收指 令’接收來自音訊播放終端裝置之相對應左或右聲道音訊 信號。 經由前述步驟，當第一耳機係隨機佩戴於左耳或右耳 時’藍牙耳機依據音訊播放終端裝置之識別結果，將自動 接收相對應的左或右聲道音訊信號。 若使用者期望收聽立體聲，可提供兩個耳機。此時， 音訊播放系統進一步包括另一個藍牙耳機（第二耳機）。於一 實施例中’第二耳機具有與第一耳機之完全相同組態，及 當第二耳機係佩戴於使用者耳朵時，第二耳機及音訊播放 終端裝置也採用前述步驟S810至S850，使得第二耳機依據 識別結果接收左或右聲道音訊信號。如此，當兩個藍牙耳 機分別佩戴於左耳及右耳時，可於兩個耳機分別接收相對 應於左耳及右耳之左及右聲道音訊信號。 此外’收聽立體聲之另一種可用方式係未設置軌跡檢 38 201233087 測單元於第二耳機。原因在於音訊播放終端裝置已經識別 第一耳機之運動執跡且判定第一耳機係在左耳或右耳，此 時音訊播放終端裝置可推定第二耳機係在第一耳機所在該 耳之另一耳’例如若第一耳機識別為在左耳，則第二耳機 推定係在右耳。如此，音訊播放終端裝置可直接發射左或 右聲道接收指令給第二耳機。因此當兩個藍牙耳機用來收 聽立體聲時，前述流程進一步包括： 步驟S860 :當識別第一耳機係在左耳時，音訊播放終 端裝置之識別單元330經由藍牙模組31〇發射右聲道接收指 令給第二耳機，及當識別第一耳機係在右耳時經由藍牙模 組310發射左聲道接收指令給第二耳機。 於本實施例中’藍牙耳機可經由與音訊播放終端裝置 之互動來得知其係在左耳或右耳，因而準確地接收相對應 聲道之音訊信號’如此容易接收立體聲。 須瞭解本發明實施例之各部分可於硬體、軟體、韌體、 或其組合具體實現。於前述實施例中，多個步驟或方法可 於儲存於記憶體之軟體或韌體具體實現及藉適當指令執行 系統執行。 前文詳細説明部分及圖式舉例說明本發明之多個特 徵。須瞭解熟諳技藝人士可進行前文描述及圖式中舉例說 明之各個步驟及方法而製作適當電腦代碼。 ° 本發明之特定實施例揭示於此處。熟諳技藝人士容易 瞭解本發明於其它環境具有其它應用。實際上，多種 實施例及具體實現亦屬我。隨附之巾請專利範圍絕= 39 201233087 圖將本發明之範圍囿限於前述特定實施例。 雖然已經就某些較佳實施例顯示及描述本發明，但顯 然熟諸技藝人士當研讀及瞭解本案說明書及附圖時容易暸 解相當變化及修改。特別有關藉前述元件(組件、總成、設 備裝置組成物等)發揮各項功能，用來描述此等元件之 術語（包括収「手段谱意圖為相對應純韻述元件之 特定功能之純元件（亦即為魏上彳目當）於所揭示結構在 此處舉例說明之本發明實施例中發揮功能亦如此。此外， 雖然前文已經就若干具體實施例中只有—者或多者描述本 發明之特定特徵，但如對任何給定或特定用途所期望及有 利地’此等特徵可與其它實施例之一或多個其它特徵組合。 【圖式簡單說明】 第1圖為依據本發明之一實施例立體聲藍牙耳機之示 意方塊圖； 第2圖為第1圖中第一轨跡檢測單元之實例丨之方塊圖； 第3圖為依據本發明之一實施例第一耳機之前視圖； 第4圖為第3圖中第一耳機之右側視圖； 第5圖為第3圖中第一耳機之左側視圖； 第6圖為依據本發明之一實施例第一識別單元之示意 方塊圖； 第7圖為於本發明之藍牙耳機中藉第一耳機或第二耳 機具體實現之立體聲接收與輸出之流程圖； 第8圖為依據本發明之一實施例耳機軌跡檢測之流程 圖 40 201233087 第9圖為依據本發明之一實施例左耳及右耳識別之流 程圖； 第10圖為第1圖中一轨跡檢測單元之實例2之方塊圖； 第11圖為依據本發明之另一實施例耳機軌跡檢測之流 程圖； 第12圖為依據本發明之另一實施例藍牙耳機之示意方 塊圖； 第13圖為依據本發明之另一實施例音訊播放終端裝置 之示意方塊圖；及 第14圖為音訊播放之流程圖。 【主要元件符號說明】 110...第一耳機 330…識別單元 111…第一軌跡檢測單元 340...顯示器 112·.·第一識別單元 350...資料傳輸介面 113…第一藍牙模組 360...記憶體 114…第一開關 1111…第一加速度感測器 120…第二耳機 1112…第一軌跡計算單元 121...軌跡檢測單元 1113...角速度感測器 122…識別單元 1121…第一截取單元 123...藍牙模組 1122...第一測定單元 3〇〇···中央處理單元(CPU) S610-S630、S711、S712、 310·.·藍牙模組 320…音訊播放單元 S810-S860...方法步驟 41201233087 VI. Description of the invention: [Technical street field to which the invention belongs] Reference to the relevant application This case seeks Chinese patent application No. 201010213862. Application No. 4 on June 30, 2010 and the United States non-provisional patent application No. ι〇, 〇85------ January 2, 2011, the priority of the second case is incorporated by reference. . FIELD OF THE INVENTION The present invention relates to the field of electronic technology, and more particularly to a method for the placement and line of blue teeth and the use of a difficult device. BACKGROUND OF THE INVENTION With the development of miniature electronic products, portable electronic devices such as MP3 players, MP4 players, mobile phones, personal digital assistants (PDAs), and floor-standing computers have become increasingly necessary for human life. . Regardless of the use of any of the aforementioned electronic products, the earphone is an extremely important accessory that allows people to listen to the sound signals provided by the electronic product without interfering with others. In addition, the use of headphones to listen to sound signals played or received by the electronic product can also reduce interference from ambient noise, such as the sound produced by a car or train start or a conversation with people around. Headphones include wired headsets and wireless headsets. With the development of Bluetooth technology and maturity, the 'no-wire Bluetooth headset has become more and more popular. Wireless Bluetooth headsets are easy to use and prevent users from being "wired". In addition, the amount of radiation caused is low and power consumption is small, and the emission angle is not limited. The current blue 201233087 tooth headset includes a single Bluetooth headset and a stereo Bluetooth headset, and the stereo Bluetooth headset gives the user a better sound. In the existing stereo Bluetooth headset, a conventional design is a Bluetooth module connected to two earphones through the connection line 'and the Bluetooth module receives the stereo audio signal from the audio signal playback terminal device' and outputs the left separately The channel audio signal and the right channel audio signal are given to the left and right earphones. However, the connection between the two earphones of the stereo earphone causes inconvenience to the user, and the user must pay attention to the "left" and "right" marks on the earphone to recognize the left earphone and the right earphone, which undoubtedly causes the user to spend time. In addition, it is clear that people with poor eyesight or even visually impaired persons are not suitable for recognizing the left and right earphones of the earphone. As such, the prior art has not solved the problem of how to provide a headset with no connection between the two headphones, and the left and right headphones can be automatically recognized. [Mingna 3 Summary of Invention The present invention has been made in view of the problem of the prior art described in the month I. The invention relates to (4)-(4) the automatic injection of the ear and the material to correctly supply the phase channel and the material channel minus the left ear and the right ear. According to the first male structure of the present invention, a Bluetooth earphone is proposed, which comprises: setting a track h to measure the early π system to detect the movement of the Bluetooth earphone during the configuration of the Bluetooth earphone; And - blue to transmit the motion track to the - audio playback terminal installed, has received γ Α from the 4 audio broadcast host terminal device to receive the left channel or the right sound 2: according to the left channel or right channel receiving instructions from The sound is connected to the track or right channel audio signal corresponding to the item. 201233087 According to another configuration, the trajectory detecting unit may include: an acceleration sensor configured to detect acceleration of the Bluetooth headset in a three-dimensional direction; and a trajectory calculation unit configured to determine the acceleration according to the detected The motion track of the Bluetooth headset is calculated. According to another configuration, the trajectory detecting unit may include: an acceleration sensor configured to detect acceleration of the Bluetooth headset in a three-dimensional direction; / an angular velocity sensor configured to surround the three-dimensional direction At least the latter, detecting the angular velocity of the Bluetooth headset; and - the trajectory calculation unit is based on the acceleration of the sensation of the Japanese eclipse and the metric π double W's fascination and the detection of the angular velocity sensor The angular velocity of the corner is calculated, and the motion track of the headset is calculated. According to another aspect of the present invention, an audio playback terminal device is provided, including: a Bluetooth headset is assembled to receive from a first Bluetooth headset, a first-Bluetooth headset-sports secret; and a --sharp unit By comparing the motion trajectory of the first Bluetooth headset with the predetermined left or right ear trajectory, the first Bluetooth headset is configured to be disposed on the left ear of the user' and through the Bluetooth module. The work channel or the money channel corresponding to the recognition result is sent to the first tooth earphone. According to the other facet, the audio playback terminal device further includes a storage=storage to store the left ear. Or the characteristic trajectory of the right ear. In addition, the unit is in the step-by-step configuration. When the 々J,,, a is the left ear, the transmission is given. The right channel receiving refers to the Bluetooth module. When the road fruit is the right ear, the second Bluetooth headset is received through the basis of the other. According to the other configuration, the identification unit includes: an intercepting unit is provided by the group 201233087 to move from the first Bluetooth headset. Trajecting a part of the motion track at the end of the track; and a measuring unit Forming to identify that the first Bluetooth headset is disposed on the left or right ear of the user by comparing the intercepted motion trajectory with the predetermined left or right ear characteristic characterization, and transmitting a recognition result to the According to another aspect of the present invention, an audio playback system includes: an audio playback terminal device and a first Bluetooth headset. The first Bluetooth headset includes: a first trajectory detection unit is configured Detecting a motion track of the first Bluetooth headset during the processing procedure of the first Bluetooth headset being configured on the user's ear; and a first Bluetooth module is configured to transmit the motion track to the audio player a terminal device receiving a left channel or a right channel receiving command from the audio playback terminal device, and receiving a corresponding left channel or right channel from the audio playback terminal device according to the left channel or right channel receiving command The audio broadcast terminal device includes: a terminal Bluetooth module is configured to receive a motion track of the first Bluetooth headset from the first Bluetooth headset; and a recognition unit The system is configured to recognize that the first Bluetooth headset is disposed on the left or right ear of the user by comparing the motion trajectory of the first Bluetooth headset with the characteristic trajectory of the predetermined left or right ear, and through the Bluetooth The module, the left channel or the right channel corresponding to the transmission identification result receives the instruction to the first Bluetooth headset. According to another configuration, the audio playback terminal device further includes a storage unit configured to store the left ear. Or a characteristic track of the right ear. According to another configuration, the system further includes a second Bluetooth headset. The identification unit is further configured to pass the Bluetooth module of the terminal through the 201233087 when the recognition result is the left ear. Transmitting the right channel receiving command to the second Bluetooth headset; and when the recognition result is the right ear, transmitting the left channel receiving instruction to the second Bluetooth headset through the terminal Bluetooth=News. The Bluetooth headset includes a second track detecting unit and a second Bluetooth headset. The second trajectory detecting unit is configured to configure the second Bluetooth headset to be disposed on the user's ear, and to detect the movement of the second blue ray machine; the second Bluetooth mode (four) rib is distributed _ The motion track of the second Bluetooth headset gives the audio play terminal a 'receive left sound or right channel receive command from the audio_terminal device, and according to the received left channel or right channel = receive command And a purely corresponding left channel or right channel audio signal from the audio playback terminal device. The terminal Bluetooth module is further configured to receive the movement of the second Bluetooth headset from the first Bluetooth headset (10); the identification unit is configured to compare the motion trajectory of the second Bluetooth headset with The left ear or the right ear is scheduled to be logged. The second Bluetooth headset is disposed on the left or right ear of the user, and transmits the identification through the Bluetooth module. The corresponding left or right channel receives the command to the second Bluetooth headset 0. According to another aspect of the present invention, a Bluetooth headset is provided, including: a track detection unit, a recognition unit, and Bluetooth module 'where: the track check & is configured to check the bluetooth headset - the motion track during the processing procedure of the Bluetooth headset with the user's ear; the identification unit is 'presented To recognize that the Bluetooth headset is configured on the user's left ear 7 201233087 or the right ear by comparing the motion track of the Bluetooth headset with the predetermined left or right ear feature 'H track' and transmitting a recognition result to the Bluetooth module The Bluetooth module is configured to receive the left channel audio signal when the recognition result of the recognition unit is the left ear and to receive the right channel audio signal when the recognition result is the right ear. According to another configuration, the tracking detection unit includes: an acceleration sensing system configured to detect the acceleration and/or a trajectory calculation unit of the Bluetooth headset in a two-dimensional direction, which is assembled according to the detection The acceleration of the Bluetooth headset is calculated. According to another configuration, the trajectory detecting unit comprises: an acceleration sensor configured to detect an acceleration of the Bluetooth headset in a three-dimensional direction; and a corner velocity sensing a hidden region to surround at least one of the three-dimensional directions And detecting the angular velocity of the Bluetooth headset; and the trajectory calculation unit is configured to calculate the motion trajectory of the Bluetooth headset according to the acceleration detected by the acceleration sensor and the angular velocity detected by the angular velocity sensor. According to the other-facet', the identification unit includes: _ interception unit is grouped by "X帛Ιί tooth headset, the end of the movement is wearing a part of the movement track' i single 70 series is assembled by the comparison The intercepted motion track "predicts the left or right ear characteristic trajectory to identify the left or right ear of the first-Bluetooth earphone system user, and transmits the recognition result to the rattan module. The facet, the left ear or the right ear characteristic track is configured according to another facet, and the control track is detected to detect the Bluetooth earphone further comprising: a storage unit assembled to store the trace. The Bluetooth earphone further comprises: an open relationship In the unit, the identification unit and the Bluetooth module, the activation of one of the 201233087. According to another aspect of the invention, an audio playback method using a Bluetooth headset is provided, comprising: a track detection step: the Bluetooth headset is configured in the Detecting one of the Bluetooth earphones during the processing procedure on the user's ear; an identifying step: identifying the movement by observing the motion profile of the Bluetooth headset and the predetermined left or right ear signature The tooth headset is disposed on the left ear or the right ear; and an output step: receiving, by the Bluetooth earphone, a left channel or a right channel audio signal corresponding to the recognition result of the identifying step. According to another facet The trajectory detecting step is performed on the Bluetooth headset, and the identifying step is performed on an audio playback terminal device, the method further comprising: transmitting the motion track of the Bluetooth headset to the audio playback terminal device by using the Bluetooth headset; The audio playback terminal device notifies the Bluetooth headset of the information indicating the recognition result of the identification step. According to another aspect, during the processing procedure of the Bluetooth headset configured on the user's ear, detecting the motion track of the Bluetooth headset includes: The Bluetooth headset is configured to detect the acceleration of the Bluetooth headset in a three-dimensional direction during a processing procedure on the user's ear; and calculate a motion track of the Bluetooth headset according to the detected acceleration. According to another facet, the Bluetooth headset Detecting the motion track of the Bluetooth headset during the processing of the user's ear includes Detecting, in the three-dimensional direction, the acceleration of the Bluetooth headset and the angular velocity of the Bluetooth headset surrounding at least one of the three-dimensional directions during the processing procedure of the Bluetooth headset configured on the user's ear; and the acceleration and angular velocity according to the detection , 201233087 Calculating the motion manifestation of the Bluetooth headset. According to the other facet, the Bluetooth motion track and the pre- or right ear are identified by comparing the Bluetooth fixed left or right ear characteristic track: from the Bluetooth headset The motion trajectory is in the left ear movement; and by comparing the intercepted motion trajectory: take the "partial ear characteristic trajectory" _ the Bluetooth earphone = fixed left or right right ear. 罝 on the user's left The ear or temple and its structure and miscellaneous reference will be more detailed as follows. The embodiments of the present invention are described in detail with reference to the drawings and the drawings to facilitate the detailed implementation of the present invention. However, it should be understood that the present invention is not subject to such actualization, improvement, and equivalent All of the features within the scope of one embodiment may be used in one or more other embodiments and/or in other embodiments in a manner that is described and/or illustrated in one embodiment. The word "includes" or "includes" means the existence of features, components, steps, and assemblies, and does not exclude the presence or addition of one or more other features, components, steps, assemblies, or combinations thereof. . The various aspects of the present invention will become more apparent by reference to the following drawings. The components of the drawings are not necessarily to scale, but are merely illustrative of the principles and/or features of the invention. For convenience of illustration and description of several components of the present invention, and to enhance the understanding of the embodiments, some of the components may be exaggerated, such as in the example of the device actually made in accordance with the present invention, in the 201233087 device, And other components. The elements and features described in the drawings or embodiments of the invention may be combined with elements and features described in one or more other figures or embodiments. In addition, the same or corresponding component symbols are used to denote the same or corresponding component parts in the whole drawings, and can also be used to represent the same or corresponding component parts in more than one embodiment. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. The drawings in the following detailed description only show some of the embodiments of the present invention, and no skilled efforts can be made by those skilled in the art based on the drawings, in which: Figure 1 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is a block diagram of an example 1 of a first trajectory detecting unit in FIG. 1; FIG. 3 is a front view of a first earphone according to an embodiment of the present invention; 4 is a right side view of the first earphone in FIG. 3; FIG. 5 is a left side view of the first earphone in FIG. 3; FIG. 6 is a schematic block diagram of the first identification unit according to an embodiment of the present invention; 7 is a flow chart of stereo reception and output realized by the first earphone or the second earphone in the Bluetooth earphone of the present invention; FIG. 8 is a flow chart of the earphone trajectory detection according to an embodiment of the present invention; 11 201233087 Figure 9 is a flow chart showing the identification of the left ear and the right ear according to an embodiment of the present invention; Figure 10 is a block diagram of Example 2 of a trace detecting unit in Figure 1; and Figure 11 is a further view of the present invention. An embodiment of an ear 12 is a schematic block diagram of a Bluetooth headset according to another embodiment of the present invention; FIG. 13 is a schematic block diagram of an audio playback terminal device according to another embodiment of the present invention; and FIG. A flow chart for audio playback. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to avoid obscuring the present invention by unnecessary detail, the drawings only show device structures and/or processing steps closely related to the solution of the present invention, and delete Other details not so relevant to the present invention. Since the earphone is worn by the user in the left ear of the user, the earphone has a different track on the right ear of the user by one hand, and the embodiment of the present invention is worn by the user according to the earphone (the first earphone or the second earphone). During the processing procedure on the ear, that is, the left ear or the right ear is recognized according to the motion trajectory, and thus the earphone is automatically controlled according to the recognition result to receive the corresponding left channel signal 戋 right channel signal. Thus, when the user randomly wears two earphones, one worn on the left ear and one worn on the right ear, the two earphones will automatically control to receive the corresponding left channel signal and right channel signal to achieve stereo, but not Distinguish between the left and right headphones in advance. 12 201233087 Embodiments of the present invention are intended to provide a Bluetooth earphone device having two separate earphones, i.e., the Bluetooth headset device includes a first earphone and a second earphone without any mechanical or wired connection therebetween. This is more convenient for the user, and only one of the headphones can be used. In an embodiment of the invention, the first earphone and the second earphone may be combined for trajectory detection and left/right ear recognition, thereby receiving signals from corresponding channels. In addition, the first and/or second earphones can be assembled to perform only track detection, and the left/right ear identification of the earphones is designed to be specifically implemented by the audio playback terminal device. In the embodiment of the present invention, the term "audio playback terminal device" includes all devices capable of outputting stereo signals through a Bluetooth module, such as an MP3 player, an MP4 player, a mobile phone, an electronic notebook computer, and a personal digital assistant. (PDA), smart phones and portable communication devices. The embodiment of the present invention will be described in detail below. Embodiment 1 FIG. 1 is a schematic block diagram of a stereo Bluetooth mobile phone according to Embodiment 1 of the present invention. As shown in FIG. 1, the stereo Bluetooth headset of this embodiment includes a first earphone 110 and a second earphone 120. There is no connection between the 1st machine and the second earphones 120, that is, there is no mechanical connection or wired connection. The first earphone 110 is provided with a first trajectory detecting unit 111, a first identifying unit 112, and a first Bluetooth module 113. The second earphone 120 is provided with a second track detecting unit 121, a second identifying unit 122 and a second Bluetooth module. The first trajectory detecting unit 111 is assembled to calculate a motion trajectory of the first earphone. For example, the first trajectory detecting unit 111 calculates the motion trajectory of the first earphone according to the acceleration sound of the first earphone during the processing procedure of configuring the first earphone 13 201233087 110 to the user's ear. After detecting the additivity of the first earphone, the displacement of the first earphone can be obtained by double integration of the acceleration, thereby obtaining the motion track. The first identification unit 112 is configured to recognize that the first earphone 110 is worn on the left or right ear of the user by comparing the motion trajectory of the first earphone with the characteristic trajectory of the predetermined left or right ear, and will recognize The result is transmitted to the first Bluetooth module 113. The first Bluetooth module 113 is configured to receive a Bluetooth module of an audio signal playing terminal device (for example, an MP3 player, an MP4 player, a mobile phone, a pda, or a portable computer that outputs a stereo signal through a Bluetooth module) The left channel sound signal transmitted, and when the recognition result by the first identification unit 112 is the left ear, the left channel audio signal is output; and the Bluetooth module of the audio signal playing terminal device receives the transmitted right channel audio signal And output the right channel audio signal when the recognition result is the right ear. Similarly, the first track detecting unit 121 is assembled to calculate the motion track of the second earphone. For example, the second __ unit 121 is configured to calculate the trajectory of the first earphone according to the acceleration rate of the second earphone by the second earphone 12 〇 wearing the treatment material _ of the occupant's ear. The second identification unit m is configured to recognize that the second earphone 120 is worn on the left or right ear of the user by comparing the motion trajectory of the second earphone with the characteristic trajectory of the predetermined left ear or the right ear. The transmission wheel recognizes the result to the second Bluetooth module 123. The second Bluetooth module 123 is configured to receive the left channel audio signal transmitted by the Bluetooth module set by the audio signal playing terminal, and when the recognition result of the second identification unit 122 is the left ear And outputting the left channel audio signal, and receiving the °:channel audio signal transmitted by the Bluetooth module of the audio signal playing terminal device, and outputting the right channel audio signal when the recognition result is the right ear. In one embodiment of the present invention, the first Bluetooth module ιΐ3 and the second Bluetooth module 123 can perform not only wireless signal reception but also wireless signal transmission. In an embodiment of the invention, the first earphone 11 〇 and the second earphone 12 〇 may have the same or different shapes (eg, may be designed separately from each other or may be designed to have a symmetrical shape) as long as they can automatically recognize the left ear/right The ear and the corresponding audio signal of the corresponding channel can be received and output separately. In addition, in this embodiment, the first earphone and the second earphone may respectively be provided with a first switch and a second switch. The third switch shows that the first switch is configured to control the activation of at least one of the first track detecting unit 111, the first identifying unit U2, and the first-to-bluetooth module 113. For example, the first switch u4 can completely control the activation of the first trajectory detecting unit 111, the first identifying unit 112, and the first Bluetooth module 113; or control the first trajectory detecting unit 111 by sequentially pressing the first switch ι14. The activation of the first identification unit 112 and the first Bluetooth module 113. For example, when the first switch 114 is pressed for the first time, only the first Bluetooth module 113 is activated, and when the first switch 114 is pressed again, the first track detecting unit 111 and the first identifying unit 112 are activated, when the switch is pressed. At the third time, all units and modules are closed. Or the first Bluetooth module 113 is activated when the first switch 114 is pressed for the first time, and the first Bluetooth 15 201233087 module 11 is simultaneously activated when the first switch 114 is pressed sequentially for the second time; 3. The first track The detecting unit U1, the first identifying unit 112, and the like. Thus, when the monophonic voice signal is to be received, only the Bluetooth module is activated, and the first track detecting unit 111 and the first identifying unit i2 are turned off, so that the Bluetooth earphone can directly receive the voice signal via the Bluetooth module without recognizing the left ear. / right ear. The operation of the aforementioned first switch is for illustrative purposes only, and the present invention is not limited thereto. Similarly, the first switch (not shown in the figure, but is disposed in the second earphone as described above) is configured to control the second track detecting unit 121, the second identifying unit 122, and the second Bluetooth module 123. At least one of the startups. The combination of the second switch can be the same as the first switch. The first switch and the second switch can be disposed at any suitable location on the housing of the first earphone and the second earphone without being limited by the position illustrated in Figure 3. This embodiment is described below with reference to an example. Example 1 As shown in Fig. 2, in the first example, the first trajectory detecting unit lu includes a first acceleration sensor 1111 and a trajectory calculating unit 1112. The first acceleration sensor 1111 is preferably a three-axis acceleration sensor that is assembled in a three-dimensional direction during the process of wearing the first earphone on the user's ear (for example, three coordinate axes of the three-axis acceleration sensor) ) detecting the acceleration (linear acceleration) of the first earphone. The trajectory calculation unit 1112 is configured to calculate the motion trajectory of the first earphone according to the acceleration of the first earphone in the three-dimensional direction. The first acceleration sensor 1111 can be disposed at any suitable position inside or outside the first earphone, but is not limited to the position as shown in FIG. 3 (the first track detecting unit of FIG. 3 is disposed inside the first earphone) ). 16201233087 Similarly, the second trajectory detecting unit 121 may include a second acceleration sensor (not shown) and a second trajectory calculating unit (not shown). The second trajectory sensor is preferably a three-axis acceleration sensor, which is configured to detect the second earphone in a three-dimensional direction during the process of wearing the second earphone on the user's ear (for example, the three-dimensional acceleration sensor) Acceleration (linear acceleration) of the coordinate axis direction). The second tracking calculation unit is configured to calculate the motion trajectory of the second earphone according to the acceleration of the second earphone in the two-dimensional direction. The second acceleration sensor can be placed at any suitable location inside or outside the second earphone. The triaxial acceleration sensor is a microelectromechanical system (MEMS) component currently used by people. It can be manufactured to a very small size and thus can be applied to mobile terminal devices such as mobile phones. The triaxial acceleration sensor can be used not only for the control of game actions, but also for gesture recognition and user interface (UI) operation of handheld devices. In addition, in practical applications, the three-dimensional components of the acceleration of a certain feature point of the object measured during the motion (for example, the acceleration components of the X, Y, and Z axes perpendicular to each other) can be accurately collected, as long as the triaxial acceleration sensor It can be placed at the feature point. Information can then be obtained via the double integration of the components of the acceleration, such as the motion trajectory of the feature points. A three-axis accelerometer to track three-dimensional motion trajectories is introduced in the reference "Innovative 3D Tracking System Based on Accelerometer", Journal of Huazhong University of Science and Technology (Natural Science), Vol. 06, No. 37, 2009. The three-axis acceleration sensor mainly includes piezoelectric, capacitor 'heat flow, piezoresistive, tunnel type 'resonance, surface acoustic wave and the like. The most basic principle of these sensors is to deform the deformation of a medium through acceleration. The amount of deformation of the medium is measured. The amount of the medium is converted into a voltage and then output through the relevant circuit. Thus, the acceleration sensor is made of medium and auxiliary circuit. The motor components that make up. The triaxial acceleration sensor used in the present invention may be, but is not limited to, any of the foregoing sensors or other sensors. It is a prior art to use the three-dimensional acceleration sensor disposed on the object to detect the acceleration of an object in three dimensions and to calculate the relative motion of the object through double integration according to the acceleration in the three-dimensional direction, so it is no longer here. Explain in detail. The earphone/right ear system is identified by the earphone in the following with the first earphone 丨10 as an example. For convenience of description and understanding, in the embodiment of the present invention, the direction of the three axes of the three-axis acceleration sensor is a predetermined direction. For example, the sound output direction of the first machine is the direction X, from the bottom of the earphone to the top. The direction is the direction z, and the direction Y is determined by the right hand rule according to the directions X and Z. Thus, in the right side view of the first earphone shown in Fig. 4, the positive direction of the X axis is horizontal to the right, the positive direction of the Z axis is vertical upward, and the γ axis direction is determined by the right hand rule according to the 乂 and 2 axis directions. (ie perpendicular to the main face of the paper as shown in the figure, for example outwards). In addition, the three-dimensional xyz space where the user is located is defined as follows: The straight direction from the left ear to the right ear of the user is the positive direction of _, the direction of the user's height (the direction of the vertical direction) is the forward direction of the ball, and • the direction is via The right-hand rule determines... that is, from the front to the back and perpendicular to the xz plane, the direction is y. Thus, in the case where the first earphone 110 is worn on the left ear, the three axes γ, γ, ζ of the three-turn acceleration sensor have the same direction as the three axes of the space xyz, in other words, the X-axis direction and the X The axis directions are the same, the γ-axis diandian system 201233087 is consistent with the y-axis direction, and the Z-axis direction is consistent with the z-axis direction. For example, during the processing procedure of the first earphone user wearing the left ear in the left ear as shown in FIG. 4, the operations performed generally include: 1) The user holds the first earphone with the left hand (sound output direction system) To the right), raise the right arm and move the first earphone toward the outside of the left ear; 2) the user places the first earphone on the left ear (for example, placing the first earphone on the left auricle), and then stops moving the first earphone . During the processing procedure, the three axes X, Y, and Z of the three-axis acceleration sensor have the same direction as the three axes of the space xyz, in other words, the X-axis direction is consistent with the X-axis direction, and the Y-axis direction is The y-axis directions are the same, and the Z-axis direction is consistent with the z-axis direction. At this time, the trajectory of the first earphone is reflected in the space xyz as follows: first, moving along the y-axis forward (Y-axis forward) and z-axis forward (Z-axis forward), and then along the X-axis forward (X-axis) Move forward, and finally stop. When the headphone is moving forward along the y and z axes, there is also a positive or negative movement along the X axis. For another example, during the processing procedure in which the first earphone is worn by the right hand of the user and worn on the right ear, the operations performed by the first earphone generally include: 1) The user holds the first earphone (the sound output direction is leftward) Right hand, lift the forearm to move the first earphone to the outside of the right ear; 2) the user places the first earphone on the right ear (for example, placing the first earphone on the right ear), and then stops the movement of the first earphone . During the processing procedure, the three axes X, Y, and Z of the triaxial acceleration sensor have different directions from the three axial directions of the space xyz, for example, the X-axis direction is opposite to the X-axis direction, and the Y-axis direction is y. The axis direction is opposite, and only the Z axis 19 201233087 direction system and the 2 axis direction are reflected as follows: First, the first - the track of the earphone moves in space 'and then the negative along the X axis:: direction (the axis is negative to this axis) The forward (Ζ-axis positive) machine moves along the positive axis of the yh axis and eventually stops. When the ear moves negatively. When moving, there are also positive or traces along the line. : 2:: Pei·Left and right ears have different sports trackers to wear the earphones to the ear level: Preface 2: Acceleration is calculated during the process of using Yang Lijun, the first earphone relative to its initial position The relative movement is obscured. In the embodiment of the present invention, - or a plurality of left ear characteristic trajectories and - = a right ear characteristic trajectory can be pre-established by the user wearing the earphones on the left ear and the right side: And then stored in the Bluetooth headset: the characteristic trace of the left ear of the unit and the characteristic trace of the right ear can be used with the coordinate direction of the two axial directions of the three-speed sensor relative to the initial detection position: 'or can be used for the previously defined space Coordinate indication of the three-dimensional coordinate system of Χ, γ, ζ. When the coordinates of the space χ, γ, ζ are used to indicate the characteristic trajectory of the left ear and the right ear, the left ear and the right ear trajectory indicated by the three-dimensional coordinates of the three-axis acceleration sensor may be according to a predetermined mapping relationship. The coordinate system is formed to form the characteristic traces of the left and right ears of the space X, γ, and ζ. The predetermined mapping relationship can be determined based on the relationship between the three-axis coordinate of the three-axis acceleration sensor and the space y y Ζ coordinates. More specifically, the mapping relationship may be the relationship between the three-axis direction of the three-axis acceleration sensor and the three-axis direction of the space XyZ when the earphone is worn on the left ear (hereinafter referred to as the left ear mapping relationship). For example, 20 201233087 The left ear mapping relationship can be as follows: = the three-axis direction of the space xyz triaxial σ velocity sensor is consistent with the axial direction and the y-axis direction, and the ζ axis is = the direction of the χ axis , Υ The mapping relationship can be when the headphones are worn on the right; direction-to. In addition, the three-axis direction of the ^ axis is the same as the axis-axis acceleration sensor ear-to-off relationship (relatively referred to as the right-direction system and the opposite direction, (4) direction mapping relationship can be as follows: X-axis direction system and z-axis The direction is opposite to the direction of the y and y axes, and the z-axis is not limited to this. The hai 4 mapping relationship is only an example, and in another embodiment of the present invention, the three-axis acceleration is sensed during the execution. Detector = right: the characteristic ear corresponding to each possible trace can be simultaneously the left ear and the right mark indicate two or more left 2 phases corresponding to the characteristics of the right ear by the spatial seat 5 characteristics of the right ear Trajectory. For example, the phase trace '' is the same, (4) should be in the ear of the right ear (10) mapping relationship and the right ear pair (four) ^ characteristic _ each can be based on the characteristic characteristics of the left ear to the right ear. The storage unit of the two tooth machines. The ear and right ear feature records can be stored in the blue exercise. The earphones are worn on the left or right ear and can be calculated by comparing the headphones. The specific 4 and the first stored left The characteristic trajectory of the ear and the right ear is recognized by the left ear. First, if you store one of the special tracks (4) (that is, the most suitable), the earphone will recognize 21 201233087 to be worn on the left ear; and if the calculated motion track is the best match with the pre-stored right ear characteristic track If you shoot someone (that is, the best match), the earphone will be recognized to be worn on the right ear. Note that if the pre-stored left ear and right ear characteristic trajectories are three-dimensional coordinates, the two-dimensional coordinates are taken care of. Indication, the actual trajectory of the earphone can be directly compared with the pre-stored trajectory. If the fa1xyzu dimensional coordinate indication of the characteristic curve of the left ear and the right ear of the pre-wire (4) is when the actual trajectory of the earphone is related to the pre-stored (four) taste, The comparison can be performed after the actual detected track coordinates are mapped to the coordinate system of the space xyz according to the predetermined mapping relationship (for example, the left ear mapping (four) or the right ear mapping relationship). More specifically, if pre-stored left The ear and right ear features (10) traces are mapped to the spatial base coordinate system according to the left ear mapping. When the actual position of the earphone is compared with the pre-stored 2 characteristic track, the track comparison will be based on the left ear pair in the actual detected track. Mapping (4) to If the pre-stored 2 left ear and right ear characteristic trajectory are based on the right ear alignment and correspond to the inter-station coordinate system, then the actual position of the earphone is pre-stored. When the trace is compared, the trajectory comparison will be performed after the actually detected trajectory corresponds to the coordinate system of the space xyz according to the right ear pair and the relationship. The left/right ear recognition example is as before. According to this embodiment, when the user = use When the earphones are used, 'each earphone can automatically determine which earmark it is positioned in, so it can correctly receive the audio signal corresponding to the channel to achieve stereo. In the case of the operation, when the user holds the left or right hand Headphones and lifts "When moving the earphone to the outside of the ear, the earphone will also move along the X-axis positive or negative 22 201233087 (four) move 'moving along the y-axis and the z-axis simultaneously, at this time, positive or negative along the X-axis There is no effect on the recognition of the left/right ear by the movement 'that is, the specific implementation of the present invention does not sing. As long as the trajectory of the earphone in the space xyz first moves along the positive direction of the y-axis and the 2-axis and the positive movement of the money mx axis, the ear that the earphone finally locates can be recognized as the left ear; and as long as the earphone is in the space xyz First, it moves along the positive direction of the y-axis and the z-axis and then moves in the negative direction along the X-axis. Then the ear that the earphone is finally positioned can be recognized as the right ear. When simulating the characteristic manifestation of the left or right ear, a plurality of left or right ear characteristic trajectories can be established based on the left or right ear characterization characteristics. It should be noted that during the actual operation, when the earphone is picked up by the left or right hand, the initial position of the earphone is usually not determined. For example, the user can take the earphone from the briefcase and wear it on the ear, or take the earphone from the desktop and wear it on the ear, but in general, when the earphone is worn by the user in the left ear, the earphone track is used when the earphone is used. The trajectory is different when wearing the right ear. The reason is that according to the movement curve of the arm, when the earphone is worn on the left ear, there is often a trajectory segment that moves first along the y-axis and the Z-axis (may also along the X-axis). It moves in the positive or negative direction while moving along the positive direction of the y-axis and the Z-axis, then moves in the positive direction of the X-axis, and finally stops moving. When the earphones are worn on the right ear, there is often a track segment that moves first along the x-axis and the z-axis (either positive or negative along the X-axis, and along the positive of the 7-axis and Z-axis) Move), then move in the negative direction of the x-axis and finally stop moving. As for the embodiment of the present invention, when the movement trajectory of the first earphone is compared with the predetermined left or right ear characteristic trajectory to identify that the first earphone system is worn on the user's left or right ear, it is preferable that only the first earphone portion is The motion trace can be compared to the initial portion of the predetermined left ear 23 201233087 or the right ear characteristic trajectory. "The main consideration is that the movement of the first earphone is considered," as illustrated in Fig. 6, the first identification unit 112 may include: a first-loading unit 1121 and a first measuring unit m2. Γ: Γ comes from the trailing track of the first earphone, 0 is used here, the term “tail” refers to the continuous _ end or end of the movement. For example, the intercepted portion of the motion trajectory may be a fine scale of a certain ratio (e.g., trace pair 2 8 G%, etc.) intercepted from the trailing end of the trajectory according to the length of the trajectory, thereby reducing the influence of the accuracy of the initial time track. For example, during the pre-(four) period before the moment of stopping the movement (also = the moment when the program of the headphone is worn), a motion trajectory can be intercepted from the (four) motion. For example, as shown in FIG. 4, if the first earphone is worn with the left hand for about a leap second in the left ear, the first intercepting unit ιΐ2ι can be worn on the earphones before the operation of the left ear is completed. The motion trajectory is used as a comparison object. The first-measurement unit 1122 is configured to compare the intercepted motion U or the right ear to make the first-headphone system worn on the user's left or right ear, and to transmit the (four) fruit. Give the first - Bluetooth module. When comparing, if the intercepted motion track is characteristic of the left or right ear, the pure ^H & line coordinates are mapped. If the T system is not I, the first part of the earphone can be compared. The identification is as follows: 2, the first earphone is transmitted to the left-end camera at the left-end, and the Bluetooth module 113 is corresponding to the left channel of the audio signal broadcast Bluetooth. The audio signal and the left (four) 轮. _, when the Hth identification unit 24 201233087 112 recognizes that the first earphone is in the right ear, the recognition result is transmitted to the first Bluetooth module 113, which receives the corresponding audio from the right channel of the Bluetooth module at the audio signal playing terminal device. Signal and output right channel audio signal. As for the second earphone, no matter whether the structure of the second earphone is the same as that of the first earphone, the left ear/right ear can be recognized in the manner of the first earphone completely (four) as long as the third earphone has a three-axis force sensitivity sensor. The definition of the three-axis direction is the same as that of the first earphone. Therefore, in this example, the second identification unit of the second earphone preferably includes. a second intercepting unit and a second measuring unit. The second intercepting unit is configured to intercept a partial motion (4) from the trailing end of the second earphone. The remainder of the motion trajectory may be, for example, a certain proportion (for example, but not limited to, 9G%, 8 calls) that is intercepted from the trailing end of the trajectory according to the duration or the length of the trajectory, thereby reducing the amount of tracking by the initial time. Degree of influence. For example, the pure track during the predetermined time period before the moment before the stop of the movement (i.e., the moment when the program for stopping the second earphone is stopped) can be intercepted from the motion track of the second earphone. For example, if the second earphone is worn by the left hand to the left ear, the first interceptor unit can intercept the movement of the second earphone before the operation of the left ear is completed as shown in (4). The trajectory is used as a comparison object. The first-measurement unit is configured to compare the intercepted motion trajectory with the characteristic of the predetermined left or right ear (10) and the second earphone system is worn on the left/right ear of the user and transmits the recognition result to the second Bluetooth module. The second identification unit 122 of the Tiandi-headphone recognizes that the second earphone is worn on the ear. ,. It can be transmitted to the second Bluetooth module (2), which receives the corresponding audio signal 'from the left channel of the Bluetooth module' and then outputs the left channel audio signal in the audio terminal 25 201233087. Similarly, when the second recognition unit 122 of the second earphone is configured to be worn on the right ear, the recognition result may be transmitted to the first Bluetooth module 123', and the audio signal playback terminal device receives the right from the Bluetooth module. The corresponding audio signal of the channel, and then the right channel audio signal is output. According to the foregoing example, when the user uses the earphone, the earphone can automatically determine the ear to which it is positioned, and thus correctly receive and play the audio signal of the corresponding channel, thereby realizing stereo. In addition, if the first recognition fails to identify the left ear/right ear, the latest recognition result can be taken as the current recognition result, and the current recognition result is output to the first blue tooth module to ensure that the Bluetooth module can receive the audio signal. Similarly, if the second recognition fails to recognize the left/right ear, the latest recognition result can be taken as the current recognition result, and the current recognition result is output to the second Bluetooth module. The latest recognition result here is merely an example, and the present invention is not limited to this. As described above, the stereo Bluetooth earphone in the embodiment of the present invention can automatically recognize the left ear/right ear without distinction by the user, and thus correctly receive and Outputting the audio signal of the corresponding channel not only provides convenience to the general user, but also solves the problem that the blind person is difficult to listen to the stereo music using the conventional Bluetooth headset. In another embodiment of the present invention, the first earphone and the second earphone can also be provided with a wireless rechargeable battery, so that the existing wireless charging technology can be used to supply energy, and the convenience of using the Bluetooth earphone is further improved. It can be seen from the foregoing examples that an embodiment of the present invention further provides a method for receiving and outputting stereo sound using a Bluetooth headset via 26 201233087. As shown in Fig. 7, the method includes the following steps for the second earphone of the first eardrum: Step S610: Track detecting step: in the earphone (the material of the first machine wearer, according to the material state = machine The motion track. The different ear, step S620: the identification step: identifying the earphones depending on the left ear or the right ear by comparing the motion track of the earphone with the characteristic track of the preview left ear or the right ear. As long as the earphone is in the space xyz, the trajectory is firstly moved in the positive direction of the y-axis and the z-axis, and (iv) in the forward direction of the x-axis, the ear positioned in the ear can be recognized as the left ear; and as long as the earphone is in the space The first movement of the y-axis and the 2-axis is first performed and then moved in the negative direction along the X-axis. The ear of the earphone can be recognized as the right ear. v. S63G. The round-out step: when the earphone is recognized as being worn by the user and the Bluetooth module placed on the earphone receives and outputs the left channel audio. The Tiger and Field headphones are recognized as receiving and outputting right channel audio signals when worn on the user's right ear. In the preferred embodiment of the present invention, as shown in Fig. 8, the step s6i can further include: v (S611) detecting the acceleration of the earphone in the three-dimensional direction during the process of wearing the earphone in the user's ear; and step S612. The movement track of the earphone is calculated based on the acceleration of the earphone in three dimensions. In a preferred embodiment of the present invention, as illustrated in FIG. 9, step 27 201233087 s_ can further include: Step S621: intercepting a part of the moving track from the trailing end of the moving track of the earphone, for example, moving from the earphone The trajectory intercepts the trajectory of the program that stops wearing the earpiece instantaneously during the predetermined period. vStep S622. The earphone system is worn on the left or right ear of the user by comparing the intercepted motion trajectory with the predetermined left or right ear feature. According to the foregoing embodiment of the present invention, the stereo output is realized by automatically determining that the earphone is positioned in the ear to correctly receive and play the audio signal of the corresponding channel. Example 2 As described in Embodiment 1 above, when the Bluetooth headset is worn on the right ear with the right hand and the left ear with the left hand, the left ear and the right ear are recognized by the Bluetooth headset. s Bluetooth headset is right-handed on the right ear and left-handed on the left ear, the movement of the Bluetooth headset is substantially translational movement, so only use the three-axis acceleration sensor to detect the linear acceleration in the three-axis direction, Bluetooth headset The trace detection unit can calculate the motion track of the earphone simply and accurately. Even if the initial movement of the earphone is not a translational movement, then the identification of the left ear and the right ear can be achieved by simply deleting the initial motion track and comparing only the posterior portion of the entire motion track of the earphone with the characteristic track'. However, as for the more complicated exercise, for example, when the user puts the earphone on the right ear or the user's right hand puts the earphone on the left ear, the earphone will rotate, and it is difficult to accurately use only the three-dimensional acceleration sensor. Calculate the motion trajectory of the headphones in the space xyz. As an example, as shown in FIG. 4, during a process in which the user wears the first earphone 28 201233087 in the right ear with the left hand, the action may include, for example: 1) The user holds the first earphone with the left hand (sound output) The hole is turned to the right), and the forearm is raised to move the first earphone to the outside of the right ear, and then the first earphone is rotated to become the view state illustrated in FIG. 5, that is, the sound output hole is directed to the left; or the left hand is used During the process of holding the first earphone and moving the first earphone to the outside of the right ear, the user can rotate the first earphone such that the sound output hole faces to the left. In the space xyz defined by the first, the actual implementation of this action is as follows: moving along the x, y, and z axes in the forward direction ‘or simultaneously or subsequently rotating the earphone so that the sound output hole of the earphone is facing left. 2) The user wears the first earphone to the right ear (for example, the first earphone is worn on the right auricle)' and then stops the action. The substantial trajectory corresponding to this action in space xyz is as follows: moving in the negative direction along the x-axis and then stopping. As shown in FIG. 5, during the process of the user wearing the first earphone on the left ear with the right hand, the action includes, for example: 1) the user holds the first earphone with the right hand (the sound transmission hole is turned to the left), and Then I moves the _ earphone to the outside of the left ear, and then rotates the first earphone to make it into the view state shown in FIG. 4, that is, the sound output hole is facing to the right; or holding the first earphone and the right hand with the right hand - The process of moving the earphone to the outside of the left ear, the user can (4) the first - the earphone makes the sound output hole to the right. The physical representation of the XyZ corresponding to this action is as follows: the negative direction along the X axis and the positive movement of the y and Z axes, and the simultaneous or continuous rotation of the earphone makes the sound output hole of the ear 29 201233087 to the right. 2) The user will pass the first earphone to the left auricle), and the ship stops the ear ((4) - the earphone is worn in the space XyZ. The actual execution of this action is as follows: Forward movement and then stop. The movement of the earphone includes not only translation but also rotation. The actual motion trajectory of the earphone is a composite motion composed of translation and rotation. At this time, the motion cannot be calculated based only on the linear acceleration detected by the triaxial acceleration sensor. The trajectory will also be used to check the three-axis acceleration of the three-axis accelerometer. The _ angular velocity of the three-axis accelerometer. The four-axis accelerometer senses the acceleration integral of the three-axis direction of the three-axis acceleration to obtain the translation speed of the earphone. The translational displacement along the three axes can be calculated by performing the double integral of the acceleration. The rotation angle of the earphone around the three axes can be calculated by using the rotational angular velocity of the earphone, so that it is easy to determine the relative position of the earphone in the space, and the movement track of the earphone can be obtained. Since the motion trajectory of the object is based on the acceleration and angular velocity of the object, it will not be described in detail here. Measuring the measurement of the pulsating motion properties of the chronometer and the gyroscope" by Ca〇Li et al. (Chinese Journal of Scientific Instruments, No. 4, 2, 4 years), based on the angular velocity around the X, Y, and Z axes and X, γ, and z The acceleration of the direction performs three-dimensional spatial orientation. In the second example, as shown in FIG. 10, in order to achieve more accurate detection of the movement of the earphone, each earphone (first earphone and second earphone) in the Bluetooth earphone The trajectory detecting unit (the first trajectory detecting unit and the second trajectory detecting unit) includes not only the first acceleration sensor 1111 but also the angular velocity sense 30 201233087 detector 1113. In this example, the components other than the trajectory detecting unit are The same as in Example 1, the detailed description of the components is deleted here. The first acceleration sensor I111 is preferably configured to detect the earphone in a three-dimensional direction during the processing procedure in which the earphone is worn on the user's ear (for example, a three-coordinate axis) A three-axis acceleration sensor of acceleration (linear acceleration). The angular velocity sensor 1113 is configured to detect the earphone during the process of wearing the earphone to the user's ear. The angular velocity of at least one of the three axes. For example, the angular velocity sensor can be assembled to detect the angular velocity of the earphone around the three axes (X, Y, Z axes) or only the earphones around the z axis or the z, X axis The angular velocity. When detecting the angular velocity around the three axes, the motion trajectory of the earphone can be detected most accurately. In the embodiment of the present invention, the angular velocity sensor can be a gyroscope. The trajectory calculation unit 1112 is assembled according to the acceleration. The acceleration detected by the sensor and the angular velocity detected by the angular velocity sensor calculate the motion track of the earphone. During the detection, when the earphone is in the initial position (detecting the starting position), by taking the triaxial acceleration sensor The coordinate system established by the three axes X, γ, and z is used as a reference coordinate system, and the trajectory calculation unit can calculate the motion trajectory of the earphone relative to the initial position according to the acceleration and the angular velocity. In the example of the present invention, the first acceleration sensor 1111 and the angular velocity sensor 1113 can be integrated, for example, as a six-axis sensor. Using such a trajectory detecting structure, during the processing of the earphones worn on the ear, in the three-axis coordinate system, the motion trajectory of the earphone relative to the initial detection position can detect whether the earphone is rotated. In this example, the first earphone and the second earphone may have identical junctions 31 201233087. In Example 2, the three-axis directions of the three-axis acceleration sensor and the three-axis direction of the space xyz can be similarly defined. Then, when the user wears the earphone to the left ear and the right ear, a plurality of left ear characteristic tracks and a plurality of right ear characteristic tracks can be pre-established according to possible trajectories, and then stored in the storage unit of the Bluetooth earphone. By taking the coordinate system established by the three axes χ, υ, ζ of the three-axis acceleration sensing at the initial position (detecting the starting position) (hereinafter referred to as the initial position coordinate as the reference coordinate system, or taking The three-dimensional coordinate of the space xyz is used as a reference coordinate system to indicate the characteristic trace of the left ear and the characteristic trace of the right ear. When the space xyz is used to indicate the characteristic execution of the left and right ears, the initial position is used. The left and right ear characteristic trajectories indicated by the coordinate system can be mapped to the spatial xyz coordinate system to form the left ear and the right ear characteristic (4) according to the predetermined mapping relationship. The 敎 mapping relationship can be determined as follows: initial The position coordinate k-axis γ, γ, ζ and the axis χ, Γ, the i-direction relationship (left or right ear) of the detection completion position can be measured by the angular velocity sensor a, and the position (left or right ear) The correspondence between the axes Υ, Υ, z and the space xyz can be configured as a predetermined mapping relationship (example: system - mapping: and / or right ear mapping), thus, the initial position and financial system The mapping between the two can be achieved using the aforementioned angular orientation: the left or right ear can be used by Compared with the earphone calculation and recognition. For example, if the characteristic trace of the left or right ear is saved, the left trajectory of the left ear is best matched with one of the pre-storage trajectories (ie, the best). Matching> The headset 32 201233087 will be recognized as being worn on the left ear; the pre-stored right ear-only trajectory is best matched to the headset that will be recognized as being worn on the right ear (ie the best match) ), the pre-stored left ear and right ear characteristic trajectory is dependent =: Γ initial position coordinate system indication, then the actual execution of the earphone storage is straight (four), if the county stores the left ear and right ear features The trajectory is based on the three-dimensional coordinates of the space xyz indicating the date and the pre-stored trajectory. According to the mapping relationship between the coordinates of the reference space of the actual trajectory, the coordinates of the actual detection trajectory U are mapped to the coordinates of the space xyz. The trajectories are compared after the system. The enantiomorphic relationship is determined as follows: the axis χ, γ, ζ and the end of the track at the starting position of the track. t γ ZFa1 <Stomach (4) system (left or right ear) can be calculated using an angular velocity sensor, and the axis Χ, γ, ζ at the end position (left or right ear) corresponds to the axis x, y, z The relationship is a predetermined mapping relationship (such as the aforementioned left ear mapping _ and / or right ear mapping _), such that the mapping relationship between the reference coordinate system of the actual trajectory and the coordinate system of the space xyz can use the aforementioned angular relationship and The predetermined enantiomorphic relationship is determined. Examples of left ear/right ear recognition are as described above. According to one embodiment, when the user uses the earphone, the earphone can automatically determine which ear is positioned at the ear, thereby correctly receiving and playing the audio signal of the corresponding channel and thus the stereo. Comparative Example 1 'Step-by-step improvement of recognition accuracy. The method of receiving and outputting stereo in this example is different from the method of the example 1 of the trajectory detecting step (S610). In this example, for example, the trajectory detecting step includes: when the earphone (the first earphone or the second earphone) is worn on the user's ear 33 201233087 During the program, the motion track of the earphone is calculated according to the acceleration and angular velocity of the earphone. The acceleration may be the acceleration of the earphone in a predetermined three-axis direction (eg, the aforementioned axes x, γ, ζ). The angular velocity may be an angular velocity at which the earphone rotates around at least one of the three axes (e.g., the aforementioned xenon axis). Preferably, as shown in FIG. 11, the trajectory detecting step further includes: Step S711: detecting an acceleration of the earphone in a three-axis (for example, three-dimensional space) direction and an angular velocity around the at least one axis during a processing procedure in which the earphone is worn on the user's ear. And step S712: calculating the motion track of the earphone according to the acceleration of the earphone in the three-axis direction and the angular velocity around the at least one axis. The other steps of this example are the same as the corresponding steps in Example 1. According to the foregoing example of the present invention, by automatically determining which ear the earphone is worn, the audio signal of the corresponding channel can be correctly received and played, thereby realizing the stereo output. Embodiment 2 In Embodiment 2, the left ear/right ear system configuration is identified based on the motion track of the earphone for the audio playback terminal device. Fig. 12 is a block diagram of a Bluetooth earphone (first earphone) according to the present embodiment. Figure 13 is a block diagram of an audio playback terminal device in accordance with the present embodiment. As shown in Fig. 12, the first earphone may include a track detecting unit [2] and a Bluetooth module 123. The trajectory detecting unit is configured to detect a motion trajectory of the first earphone during a process in which the earphone is worn on the user's ear. The second trajectory detecting unit 121 may have the same structure as the trajectory detecting unit shown in FIG. 2 or FIG. 1 , so that the detailed description of the trajectory detecting unit 121 is deleted here; 201233087; C-module, 'and 123-series The combination of the trajectory detection unit 121 detects that the trajectory is finished, and the vocal __ or right channel touch command. In this way, the Bluetooth module can be played from the audio according to the left channel (four) command or the right channel touch command; the end device has a purely corresponding left (four) tone or right channel audio signal. Preferably, the first earphone enters a control switch, which is configured to activate the start of at least one of the work execution detecting unit 121 and the bluetooth module 123. As shown in FIG. 13, the audio playback terminal device For example, including: - CPU Bluetooth module (also referred to as a terminal device Bluetooth module) 3, an audio = playback unit 320, - identification unit 33, a display (four), a data transmission " face 350, and - memory 36 Hey. The audio playback unit 32 is, for example, arranged to play a sound "case. The memory 36G is configured to store f materials such as audio files. In the present example, & recalls 36 are further configured to store pre-established characteristic traces of the left and right ears. Display (eg, lcd) The system is configured to display objects such as video and text M (10) is configured to use external devices to transmit data. In this embodiment, the Bluetooth module 31 can be wirelessly transmitted and received. For example, 'Bluetooth module The 31G can receive the movement track of the first earphone from the earphone, and output the movement track to the identification unit 33. The identification unit 33 is configured to compare the first earphone with the predetermined left ear or the right ear. The characteristic trajectory is used to identify whether the first earphone is worn on the left ear or the right ear of the maker, and the Bluetooth headset 310 notifies the information about the result of the first earphone related identification unit 33, that is, the result of the recognition, that is, the recognition result Corresponding left channel receiving command or right channel receiving command. More specifically, when the recognition result is the left ear, the identifying unit 330 generates a left channel receiving command, and transmits the same to the first earphone via the Bluetooth module 310; When identifying When the result is the right ear, the recognition unit 330 generates a right channel receiving command and transmits it to the first earphone through the Bluetooth module 310. The left or right channel receiving command may be a self-identifying result. Preferably, the identifying unit 330 may include Figure 6 shows the wearing unit 1121 and the measuring unit 1122' and the details are the same as in Example 1, so I will not describe it here. When there are two Bluetooth headsets, another Bluetooth headset (second headset) has the same The earphone has the same configuration and performs the same operation. Or the track detecting unit is not disposed in the second earphone, and the audio playing terminal device directly transmits the recognition result, and the first earphone is emitted according to the recognition result of the first earphone. The recognition result is reversed to the second earphone. (4) The recognition unit 33 breaks in - the step group is configured to transmit the right channel receiving command to the second Bluetooth when the first earphone is the left ear, and (4) the bluetooth module 31Q The earphone; and when the recognition result of the first earphone is the right ear, the control Bluetooth mode (4) (4) sends a sound receiving command to the second bluetooth earphone. The foregoing audio playing terminal device and the first earphone can be set For example, the audio signal (4) is shown in Fig. 14. The sounding and dismissing step is as follows: for example, when the first earphone wants (4) (4) to detect the motion track of the wearer-headphone during the processing procedure of the user's ear: the track detecting unit 121 Detecting the movement trajectory of the first earphone 卞 炙 36 36 201233087 The mode is the same as that of Embodiment 1. For example, the motion trajectory of the first earphone is only ___ _ — the acceleration of the earphone in the three-axis direction, or according to the first The acceleration of the earphone in the direction of the two axes and the angular velocity around the at least one axis delete the detailed portion. At step S820, the first earphone transmits the first earphone track to the audio playback terminal device via the Bluetooth module 113. Correspondingly, the audio playback terminal device traverses the motion track of the stomach earphone via the Bluetooth module 31. Step S830: The recognition unit 33 of the audio playback terminal device recognizes that the first earphone system is worn on the left ear or the right ear of the user based on the motion track of the first earphone, more specifically, by comparing the motion track of the first earphone with the predetermined left The characteristic track of the ear or the right ear, the identification unit 33 identifies that the first earphone is worn on the left or right ear of the user. More preferably, step S830 further includes the following steps: • extracting a partial motion trajectory from the motion track trail of the first earphone; and identifying the first earphone by comparing the intercepted motion trajectory with a predetermined left or right ear characteristic characterization It is worn on the left or right ear of the user. The interception portion of the motion trajectory may be, for example, a certain trajectory (for example, but not limited to 9 〇%, 80 〇, etc.) that is extracted from the trailing end of the trajectory according to the duration or the length of the trajectory. The impact on recognition accuracy. Step S840: The identification unit 3 3 通知 notifies the first earphone via the Bluetooth module 310 of the information indicating the recognition result. 37 201233087 For example, the identification unit 330 transmits the left or right channel interception instruction corresponding to the recognition result to the first earphone via the Bluetooth module 310. The left and right channel receiving commands corresponding to the recognition result may be the recognition result itself, for example, but not limited to "left" or "right" or similar "0" or "1" information is identified as "left" and "right" "." Step S850: The first earphone receives and outputs a left channel audio signal and a right channel audio signal corresponding to the recognition result according to the identification result of the information receiving terminal. For example, the first earphone receives the left or right channel receiving command from the audio playing terminal device via the Bluetooth module 113, and receives the corresponding left or right channel audio from the audio playing terminal device according to the left or right channel receiving command. signal. Through the foregoing steps, when the first earphone is randomly worn on the left or right ear, the Bluetooth headset automatically receives the corresponding left or right channel audio signal according to the recognition result of the audio playback terminal device. If the user desires to listen to stereo, two headphones are available. At this time, the audio playback system further includes another Bluetooth headset (second headset). In an embodiment, the second earphone has the same configuration as the first earphone, and when the second earphone system is worn on the user's ear, the second earphone and the audio playback terminal device also adopt the foregoing steps S810 to S850, so that The second earphone receives the left or right channel audio signal according to the recognition result. Thus, when two Bluetooth earphones are respectively worn on the left ear and the right ear, the left and right channel audio signals corresponding to the left ear and the right ear can be respectively received in the two earphones. In addition, another way to listen to stereo is to not set the track check. 38 201233087 The test unit is in the second earphone. The reason is that the audio playback terminal device has recognized the motion of the first earphone and determines that the first earphone is in the left ear or the right ear. At this time, the audio playback terminal device can estimate that the second earphone is attached to the other ear of the first earphone. Ear 'For example, if the first earphone is identified as being in the left ear, then the second earphone is estimated to be in the right ear. Thus, the audio playback terminal device can directly transmit the left or right channel to receive the command to the second earphone. Therefore, when the two Bluetooth headsets are used to listen to the stereo, the foregoing process further includes: Step S860: When the first headset is identified as being in the left ear, the identification unit 330 of the audio playback terminal device transmits the right channel reception via the Bluetooth module 31〇 The command is given to the second earphone, and when the first earphone is recognized to be in the right ear, the left channel receiving command is transmitted to the second earphone via the Bluetooth module 310. In the present embodiment, the Bluetooth headset can be informed that it is attached to the left or right ear via interaction with the audio playback terminal device, thereby accurately receiving the audio signal of the corresponding channel. It will be understood that portions of the embodiments of the invention may be embodied in a hardware, a soft body, a firmware, or a combination thereof. In the foregoing embodiments, multiple steps or methods may be implemented in a software or firmware stored in a memory and executed by an appropriate instruction execution system. The foregoing detailed description and drawings are illustrative of the various features of the invention. It is to be understood that skilled artisans may make appropriate computer code by performing the various steps and methods described in the foregoing description and drawings. Specific embodiments of the invention are disclosed herein. Those skilled in the art will readily appreciate that the present invention has other applications in other environments. In fact, many embodiments and implementations are also my own. The scope of the invention is limited to the specific embodiments described above. Although the present invention has been shown and described with respect to the preferred embodiments thereof, it will be apparent to those skilled in the art In particular, the use of the aforementioned components (components, assemblies, equipment components, etc.) to perform various functions is used to describe the terms of such components (including the pure components that the means of the spectrum is intended to correspond to the specific functions of the purely narrated components). (i.e., Wei Shangyu) is also functional in the embodiments of the invention as exemplified herein. Further, although the foregoing has been described in terms of only a few or more of the specific embodiments Specific features, but as desired and advantageous for any given or specific use, the features may be combined with one or more other features of other embodiments. [Simplified Schematic] FIG. 1 is a FIG. 2 is a block diagram of an example of a first trajectory detecting unit in FIG. 1; FIG. 3 is a front view of a first earphone according to an embodiment of the present invention; 4 is a right side view of the first earphone in FIG. 3; FIG. 5 is a left side view of the first earphone in FIG. 3; FIG. 6 is a schematic block diagram of the first identification unit according to an embodiment of the present invention; 7 is a flow chart of stereo reception and output realized by the first earphone or the second earphone in the Bluetooth earphone of the present invention; FIG. 8 is a flow chart of the earphone trajectory detection according to an embodiment of the present invention. 9 is a flow chart for identifying the left ear and the right ear according to an embodiment of the present invention; FIG. 10 is a block diagram of Example 2 of a track detecting unit in FIG. 1; FIG. 11 is another block according to the present invention. 12 is a schematic block diagram of a Bluetooth headset according to another embodiment of the present invention; and FIG. 13 is a schematic block diagram of an audio playback terminal device according to another embodiment of the present invention; Figure 14 is a flow chart of audio playback. [Main component symbol description] 110...first earphone 330...identification unit 111...first track detection unit 340...display 112·.·first recognition unit 350.. Data transmission interface 113...first Bluetooth module 360...memory 114...first switch 1111...first acceleration sensor 120...second earphone 1112...first trajectory calculation unit 121...track detection unit 1113 ... Angular velocity sensor 122...Identification unit 1121...First intercepting unit 123...Bluetooth module 1122...First measuring unit 3〇〇···Central processing unit (CPU) S610-S630, S711, S712, 310 ···Bluetooth module 320... Audio playback unit S810-S860... Method step 41