1374044 案號098118666 101年7月12日 修正本 六、發明說明： 【發明所屬之技術領域】 一種於光學指向系統提高對背景光雜訊忍受度之方 法，特別是一種應用於遊戲週邊裝置之光學指向系統中提 高對背景光雜訊忍受度的方法。 【先前技術】 光學指向裝置，以光學方式傳輸指向訊號之裝置，可 應用於互動式電玩遊戲中之訊號輸入，作為動作感測追蹤 之用，或是，廣義言之，可應用於電腦中以控制游標在電 腦螢幕上之位置，作為代替滑鼠之指向裝置。 互動式電動遊戲，無論是電視遊戲或電腦遊戲，皆是 相當受歡迎的休閒娛樂。大體來說，電腦遊戲牽涉計算機 對電腦軟體的執行，及電腦輸入周邊裝置的操作，像是鍵 盤、滑鼠、搖桿和跳舞機等。然而，這些電腦輸入周邊裝 置的操作方式使得電動遊戲不夠逼真。是故，為了使遊戲 更刺激有趣，能捕捉玩家動作的「光學指向系統」應運而 生。如第1圖所示，該光學指向系統100本質上為一攝影 鏡頭101搭配一光指向器102，該光指向器在外型上可配 合遊戲採用各式造型，如球棒、手搶、劍、方向盤等。而 攝影鏡頭可捕捉指向裝置之動態，使得該組指向系統之訊 號傳輸得以無線化以克服玩家在進行3D動作遊戲時之不 便。再者，「指向裝置」從傳統自身不具光源，表面塗敷 以反光材質的被動式指向器（passive marker)，改進成具有 〇944-A41441-TW/Final1 4 1374044 案號098118666 101年7月12日 修正本 光源之指向器，以避免傳統被動式指向器需要外加投射光 源、以及需將背景光源控制在合理範圍内之不便。最後， 内建光源之指向器其光源可選用可見光或不可見光，而在 使用上，發出可見光之指向器可能會影響玩家視覺而造成 不適且其光學訊號易被背景光所干擾，故在該指向器之設 計多使用不可見光中之紅外線。使用紅外線作為光源之指 向器具有省電及價格低廉之優勢，自當成為業界設計該產 品之首選。 然而，在我們生活環境中其實充滿了紅外線，物體只 要有熱就會發出熱輻射，而這些熱輻射（即所謂的紅外線) 可能造成攝影鏡頭101捕捉的晝面106中的雜訊105，而 使由指向器102發射出之光點104無法辨識。此外，攝影 鏡頭中之光學感測元件，如電荷耦合裝置（charge coupled device, CCD)在製造上的瑕疵，也可能使得光學指向系統 無可避免的遭遇到背景雜訊干擾之問題。 【發明内容】 有鑑於此，本發明主要目的係提供一種光學指向系 統，可提高對背景光雜訊忍受度。本發明之光學指向系統， 包括··一第一光指向器包括一第一光發射部，用以發射一 第一特定數目光點；及一第一驅動裝置，其耦接該第一光 發射部，用以控制該第一特定數目光點以——般模式或以 一特定閃動模式發出以及一光接收器，用以捕捉該第一特 定數目光點，且判斷所接收之背景光之雜訊狀況；當該背 〇944-A4144UW/Final】 1374044 案號咖_ 101年7月12日 一間值’則切換第-光指向器工作模式， 發出，#二?二=-般模式切換至-特定閃動模式 單-種二、二广光雜訊忍受度。傳統之指向器只以 :本發明中之一般模式)，而本發明可使指向器切::出 ，閃動模式間(包括該-般模式及該閃動模式，盆中閃 又有多種型態，詳見後文之實施方式），將有效改進 日月不雜訊干擾的情形。除了提高對背景光忍受度外，本發 明之另-目的為’在使用—個以上光指向器的光學指向系 統中’彻給定該等光指向器不同㈣模式之方式 辨識來自各個光指向器之各個光點之功效。為使本發明之 上述目的、特徵和優點能更明顯易懂，下文特舉較佳實施 例並配合所附圖式做詳細說明。 【實施方式】 —為了使貴審查委員能更進一步瞭解本發明為達成預 疋目的所採取之技術、手段及功效，請參閱以下有關本發 明之詳細說明及附圖，相信本發明之目的、特徵及特點， 當可由此得一深入且具體之瞭解，然而所附圖示僅提供來 考及說明用，並非用來對本發明加以限制。 第2圖為本發明之光學指向系統20〇之線路方塊圖， 該光學指向系統200主要包括一第一先指向器21〇，及一 光接收器220。該第一光指向器210更包括一第一光發射 部213,用以發射一第一特定數目光點23〇;及一第一驅動 〇944-A41441-TW/Finall 1374044 案號098118666 1〇1年7月12日 修正 其耦接該第一光發射部213 ’用以控制本該第-特 光點23〇以 般模式或以一特定閃動模4路山 在貝施例中，當該第一光接收器220判斷光t ^二 其所處環境中背景光之雜訊達到一閣值時，即：：：210 !!向器210工作模式，令該第-特定數目光點23=二 疋閃動模式發出。光接收器22G可用以捕捉該第 目光點230，依照此發明，該第—光接收器22 二 ===狀數目光點23。進行辨識。若特定閃動=式 热法有蚨進行辨識時則重覆上述步驟切換第〜 2」〇工1模式，令該第一特定數目光點23〇切換成二： 定閃動模式使得該第—光接收器22G可更輕易地對該第一 特疋數目光點230進>f亍辨識。在另一實施例中，光接收哭 220亦可用於判斷所接收之背景光之雜訊狀況；當該背景 光之雜訊達到一閾值，則輸出一第一控制信號25〇給該驅 動裝置212，令該第一特定數目光點23〇以該閃動模式發 出，藉以抑制背景光雜訊。上述之該第一光發射部2〗3包 括一特定數目LED ,用以發射紅外線。而上述該光接收哭 220又包括一光學感測器221，而該光學感測器為—感光元 件’如電荷赛合裝置（Charge Coupled Device, CCD)或互 補式金屬氧化半導體 （Complementary Metal-Oxide_Semiconductor，CMOS)感測器等，用以捕捉 該第一特定數目光點230並輸出該第一指向信號240。耦 接於光學感測器221者為一雜訊抑制器222，其用以接收 該第一指向信號240、判斷該第一特定數目光點所處背景 0944-A4]44]-TW/Final] 1374044 案號098118666 101年7月12日 修正本 雜訊是否達一閾值，以及輸出該控制信號250。背景光之 雜訊狀況可藉由該第一特定數目光點與背景雜訊兩者之信 號雜訊比（Signal to Noise Ratio，S/N)做判斷，且上述閾值 可由雜訊抑制器222所給定。如同先前技術，該光學接收 器220可再包括一動作追蹤感測器223耦接於雜訊抑制器 222，其内含一數位信號處理器（Digital Signal Processor， DSP)及一中央處理單元(Central Processing Unit, CPU)，用 以對該光指向器之動態做後續處理。 參照第3A至3C圖，將有助於了解上述一般模式及閃 動模式。一般模式，如第3A圖，為使第一光發射部213 所發射之該第一特定數目光點230不閃動，即持續亮著不 滅；第一閃動模式，如第3B圖，為使第一光發射部213 之該第一特定數目光點230以一特定頻率閃動，其中該特 定頻率可由上述光接收器220做調整；以及，如第3C圖， 第二閃動模式為使第一光發射部213之該第一特定數目光 點230以一特定型態閃動，其中該特定型態同樣可由上述 光接收器220做調整，舉例而言：特定型態可為：一、如 圖中310,亮和滅時間長度（圖中之T1及T2)做周期性之配 置，；二、如圖中320，閃動頻率（圖中之F1及F2)做周期 性之配置。上述於第I區間内者皆可做為識別之單—訊 號。由上述可知，該第—特定數目光點230至少包括一光 點。值得注意的是’不同的實施方式可對應不同型態之閃 動方式’熟悉本技藝人士可依照上述各種型態輕易混合運 用，其變化不勝枚舉，是以上述舉例僅為方便說明之用， 〇944·Α4144 卜TW/Finall 1374044 案號098118666 101年7月12日 修正本 並非用以限定本發明。 第4圖為本發明光學指向系統之雜訊抑制方法第一實 施例之流程圖。合併參考第2圖，當該光學指向系統200 啟動時直接進入該一般模式，使該第一光指向器210中之 該第一光發射部213所發射之該第一特定數目光點230不 閃動。該光接收器220啟動後持續將所有進入其中該光學 感測器221之光包括該第一特定數目光點230在内轉換成 具有數位影像資訊的一第一指向信號240，並輸出至雜訊 抑制器222，當雜訊抑制器222判斷背景光之雜訊未達一 設定之閾值而可辨識出該第一特定數目光點230時，則該 雜訊抑制器222不發出任何命令，是以該光學指向系統200 仍以一般模式運作。而當該雜訊抑制器222判斷背景光之 雜訊已超過一設定之閾值時，則對遠端之該第一光指向器 210之該第一驅動裝置212發出一第一控制信號250,使得 該第一驅動裝置212驅動該第一光發射部213以該閃動模 式運作，而此方法可使該雜訊抑制器得以更容易辨識出該 第一特定數目光點230而達成抑制該背景光雜訊之目的。 上述該第一控制信號由該雜訊抑制器222傳輸至該第一驅 動裝置212，舉例而言，可以透過無線傳輸之方式。第5 圖為具有複數個光指向器的光學指向系統之概要圖，而下 述實施例將以兩個光學指向器做說明，熟悉本技藝人士當 可依據本說明輕易推廣至使用複數個光學指向器時之情 況。第6圖為本發明光學指向系統之雜訊抑制方法第二實 施例之流程圖。合併參考第2、5圖，當該光學指向系統 0944-A4M4]-丁 W/Finall 1374044 -r | ^ y 200啟動時直接進入該一般模式，使該第一光指向器 中之該第一光發射部213所發射之該苐一特定數目光點 230不閃動。該光接收器22〇啟動後持續將所有進入其中 垓光予感測斋221之光包括該第一特定數目光點23〇在内 轉換成具有數位影像資訊的-第—指向信1 ，並輸出 f雜訊抑制器222，當該光接收器22〇僅捕捉到該第一特 ^數目光點230時’則該雜訊抑制器222不發出任何命令， 是以該光學指向系統200仍以一般模式運作。而當該光7接 收益220同時捕捉到該第一特定數目光點23〇及該第二特 定數目光點530時，則該光學接收器22〇 ， 光指向器2丨〇之該第-藤繼212、該第二：之二 ^該第二驅動裝f 512分別發出一第一控制信f虎250及-=號550 ’使得該第一驅動裝置212及該第二驅 :=ί別驅動該第一光發射部213及該第二光發射 、 〃 一者以閃動模式、《兩者分別以相里之閃動 核式運作。此方法可使該雜訊抑制器辨識出該第二特定數 點:及第二特定數目光點53G’達到本發明的又-月b °亥第一實施例應用在互動遊戲之指向 =:不同光指向器之複數個玩家。上=第= 虎及該第二控制信號550由該雜訊抑制 傳輸至該第-驅動裝置212及料_ =裔222分別 以透過無線傳輸之方式。該弟一驅動裝置512同樣可 施例：St本:明光學指向系統之雜訊抑制方法第三實 圖。本實施例為上述第-及第二實施例之結 0944-A41441-TW/Final1 1374044 案號098118666 101年7月12日 修正本 合，而該光學指向系統與上述二實施例雷同，於此不在贅 述。該光學指向系統中抑制雜訊之方法與上述兩實施例差 異之處說明如下。合併參考第2圖，當該光學指向系統200 中之光接收器220同時捕捉了複數個光點且偵測雜訊達一 閾值，則雜訊抑制器222先發出控制訊號使所有的光指向 器以單一閃動模式發出光點，以濾除所有背景光之雜訊。 再者，當雜訊抑制器222仍捕捉了複數個光點，則發出控 制訊號使該等光指向器分別以相異之閃動模式發出光點， 藉此完成該等光指向器之辨識。 雖然本發明已以較佳實施例揭露於上，然其並非用以 限定本發明，任何熟習此項技藝者，在不脫離本發明之精 神和範圍内，當可作些許之更動與潤飾，因此本發明作之 保護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖為光學指向糸統之外觀概略圖。 第2圖為本發明之光學指向系統200之線路方塊圖。 第3A圖為本發明之發射部於一般模式下之示意圖。 第3B圖為本發明之發射部於第一閃動模式下之示意圖。 第3C圖為本發明之發射部於第二閃動模式下之示意圖。 第4圖為本發明光學指向系統之雜訊抑制方法第一實施例 之流程圖。 第5圖為具有複數個光指向器的光學指向系統之概要圖。 第6圖為本發明光學指向系統之雜訊抑制方法第二實施例 〇944-A41443-TW/Fina]] 1374044 案號098118666 101年7月12日 修正本 之流程圖。 第7圖為本發明光學指向系統之雜訊抑制方法第三實施例 之流程圖。 【主要元件符號說明】 100〜光學指向系統，101〜攝影鏡頭，102〜光指向器， 104〜光點’ 105〜雜訊’ 106〜晝面’ 200〜光學指向糸統’ 210〜第一光指向器，212〜第一驅動裝置，213〜第一光發 射部，220〜光接收器，221〜光學感測器，222〜雜訊抑制器， 223〜動作追蹤感測器，230〜第一特定數目光點，240〜第一 指向信號，250〜第一控制信號，510〜第二光指向器，5]2〜 第二驅動裝置，513〜第二光發射部，550〜第二控制信號。 〇944-A41441-TW/Finall1374044 Case No. 098118666 Revised on July 12, 101. The invention is: 1. The invention relates to a method for improving the tolerance of background light noise in an optical pointing system, in particular to an optical device applied to a peripheral device of a game. Pointing to the system to improve the tolerance of background light noise. [Prior Art] An optical pointing device optically transmits a pointing signal device, which can be applied to signal input in an interactive video game, as a motion sensing tracking, or, in a broad sense, can be applied to a computer. Controls the position of the cursor on the computer screen as a pointing device instead of a mouse. Interactive video games, whether they are video games or computer games, are quite popular entertainment. In general, computer games involve the execution of computer software on computers, and the operation of computer input peripheral devices, such as keyboards, mice, joysticks, and dance machines. However, the operation of these computer input peripherals makes the video game less realistic. Therefore, in order to make the game more exciting and interesting, the "optical pointing system" that captures the player's movements has emerged. As shown in FIG. 1, the optical pointing system 100 is essentially a photographic lens 101 coupled with a light directional device 102. The optical directional device can be used in various shapes, such as bats, hand grabs, swords, and the like. Steering wheel, etc. The photographic lens captures the dynamics of the pointing device, allowing the transmission of the signal to the system to be wireless to overcome the inconvenience of the player in performing a 3D action game. Furthermore, the "pointing device" has been modified from the conventional one without a light source to a passive marker with a reflective material, and has been modified to have a 〇944-A41441-TW/Final1 4 1374044 case number 098118666 July 12, 101 Correct the pointer of the light source to avoid the inconvenience that the conventional passive pointer needs to add a projection light source and the background light source needs to be controlled within a reasonable range. Finally, the pointer of the built-in light source may use visible light or invisible light, and in use, the visible light director may affect the player's vision and cause discomfort and the optical signal is easily interfered by the background light, so the pointing The design of the device uses infrared rays in invisible light. The use of infrared light as a light source has the advantages of power saving and low cost, and has become the first choice for the industry to design this product. However, in our living environment, it is actually full of infrared rays. Whenever an object has heat, it emits heat radiation, and these heat radiation (so-called infrared rays) may cause noise 105 in the kneading surface 106 captured by the photographic lens 101, and The spot 104 emitted by the pointer 102 is not identifiable. In addition, the optical sensing components in the photographic lens, such as the 在 of the charge coupled device (CCD), may also cause the optical pointing system to inevitably suffer from background noise interference. SUMMARY OF THE INVENTION In view of the above, it is a primary object of the present invention to provide an optical pointing system that improves background noise tolerance. The optical pointing system of the present invention includes: a first light director comprising a first light emitting portion for emitting a first specific number of light spots; and a first driving device coupled to the first light emitting a portion for controlling the first specific number of light spots to be emitted in a normal mode or in a specific flashing mode and an optical receiver for capturing the first specific number of light spots and determining the received background light The noise condition; when the back 944-A4144UW/Final] 1374044 case number _ _ July 12, a value of 'turns the first-light pointer working mode, issued, #二?二=--mode switching To - specific flash mode single-type two, two wide-light noise tolerance. The conventional pointer is only in the general mode of the present invention, and the invention can cut the pointer::, and between the flash modes (including the general mode and the flashing mode, the flash in the basin has various types) State, see the implementation of the following text), will effectively improve the situation of day and month without noise interference. In addition to improving the tolerance to background light, another object of the present invention is to identify in the optical pointing system of more than one optical director that the optical directors are given different (four) modes. The effect of each light spot. The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] - In order to enable the reviewing committee to better understand the techniques, means, and effects of the present invention for achieving the intended purpose, refer to the following detailed description of the invention and the accompanying drawings. The features and features of the invention are to be considered as illustrative and not restrictive. 2 is a block diagram of an optical pointing system 20 of the present invention. The optical pointing system 200 mainly includes a first pointing device 21A and a light receiver 220. The first optical director 210 further includes a first light emitting portion 213 for emitting a first specific number of light spots 23A; and a first driving unit 944-A41441-TW/Finall 1374044 Case No. 098118666 1〇1 On July 12th of the year, it is modified to couple the first light emitting portion 213' to control the first-specific light spot 23' in a normal mode or in a specific flashing mode. The first light receiver 220 determines that the light of the background light in the environment is at a value, that is: ::210 !! The working mode of the device 210, so that the first-specific number of spots 23= The second flash mode is emitted. The light receiver 22G can be used to capture the first light spot 230. According to the invention, the first light receiver 22 has a number of light spots 23. Identify. If the specific flash=thermal method is used for identification, repeat the above steps to switch the 2nd to 1st work 1 mode, so that the first specific number of spots 23〇 is switched to two: the fixed flash mode makes the first light The receiver 22G can more easily recognize the first feature number of spots 230. In another embodiment, the light receiving cry 220 can also be used to determine the noise condition of the received background light; when the noise of the background light reaches a threshold, a first control signal 25 is output to the driving device 212. And causing the first specific number of spots 23 to be emitted in the flashing mode, thereby suppressing background noise. The first light emitting portion 2 described above includes a specific number of LEDs for emitting infrared rays. The light receiving cry 220 further includes an optical sensor 221, and the optical sensor is a photosensitive element such as a Charge Coupled Device (CCD) or a Complementary Metal-Oxide_Semiconductor. a CMOS) sensor or the like for capturing the first specific number of spots 230 and outputting the first pointing signal 240. The optical sensor 221 is coupled to the noise detector 222 for receiving the first pointing signal 240 and determining the background of the first specific number of light spots. 0944-A4] 44]-TW/Final] 1374044 Case No. 098118666 On July 12, 101, it was corrected whether the noise reached a threshold and the control signal 250 was output. The noise condition of the background light can be judged by the signal to noise ratio (S/N) of the first specific number of light spots and the background noise, and the threshold value can be determined by the noise suppressor 222. given. As in the prior art, the optical receiver 220 can further include an action tracking sensor 223 coupled to the noise suppressor 222, which includes a digital signal processor (DSP) and a central processing unit (Central). The processing unit (CPU) is used for subsequent processing of the dynamics of the optical pointer. Referring to Figures 3A through 3C, it will be helpful to understand the above general mode and flash mode. The general mode, as shown in FIG. 3A, is such that the first specific number of light spots 230 emitted by the first light emitting portion 213 does not flash, that is, the light is continuously turned on; the first flashing mode, as shown in FIG. 3B, The first specific number of light spots 230 of the first light emitting portion 213 is flashed at a specific frequency, wherein the specific frequency can be adjusted by the light receiver 220; and, as shown in FIG. 3C, the second flashing mode is The first specific number of light spots 230 of a light emitting portion 213 is flashed in a specific pattern, wherein the specific pattern can also be adjusted by the light receiver 220. For example, the specific type can be: In the figure 310, the length of the light and the off time (T1 and T2 in the figure) are periodically configured; second, as shown in Fig. 320, the flashing frequency (F1 and F2 in the figure) is periodically configured. All of the above mentioned in the first interval can be used as the identification of the signal-signal. As can be seen from the above, the first specific number of spots 230 includes at least one spot. It is worth noting that 'different implementations can correspond to different types of flashing patterns'. Those skilled in the art can easily mix and use according to the above various types, and the changes are numerous, and the above examples are only for convenience of explanation. 〇 944·Α4144 TW/Finall 1374044 Case No. 098118666 The amendment of July 12, 2011 is not intended to limit the invention. Fig. 4 is a flow chart showing the first embodiment of the noise suppression method of the optical pointing system of the present invention. Referring to FIG. 2, when the optical pointing system 200 is activated, the general mode is directly entered, so that the first specific number of light spots 230 emitted by the first light emitting portion 213 in the first light director 210 does not flash. move. After the light receiver 220 is activated, all the light entering the optical sensor 221 is converted into the first specific number of light points 230 into a first pointing signal 240 having digital image information, and is output to the noise. The suppressor 222, when the noise suppressor 222 determines that the noise of the background light does not reach a set threshold and recognizes the first specific number of spots 230, the noise suppressor 222 does not issue any command. The optical pointing system 200 still operates in a normal mode. When the noise suppressor 222 determines that the noise of the background light has exceeded a set threshold, the first driving device 212 of the first optical director 210 of the remote end sends a first control signal 250, so that The first driving device 212 drives the first light emitting portion 213 to operate in the flashing mode, and the method can make the noise suppressor more easily recognize the first specific number of light spots 230 to achieve suppression of the background light. The purpose of noise. The first control signal is transmitted by the noise suppressor 222 to the first driving device 212, for example, by wireless transmission. Figure 5 is a schematic diagram of an optical pointing system having a plurality of optical directors, and the following embodiments will be described with two optical directors, which can be readily extended to use multiple optical pointing in accordance with the teachings of the present invention. The situation at the time of the device. Figure 6 is a flow chart showing a second embodiment of the noise suppression method of the optical pointing system of the present invention. Referring to Figures 2 and 5, when the optical pointing system 0944-A4M4]-Ding W/Finall 1374044 -r | ^ y 200 is activated, the general mode is directly entered, so that the first light in the first optical director The predetermined number of spots 230 emitted by the transmitting portion 213 are not flashing. After the light receiver 22 is activated, all the light entering the light-sensing sensation 221 is continuously converted into a first-directed letter 1 having digital image information, and the output is f. The noise suppressor 222, when the light receiver 22 only captures the first number of spots 230, then the noise suppressor 222 does not issue any command, so that the optical pointing system 200 is still in the normal mode. Operation. When the light 7 receives the benefit 220 while capturing the first specific number of spots 23 〇 and the second specific number of spots 530, then the optical receiver 22 〇, the optical directional device 2 The second driving device f 512 respectively sends a first control signal f tiger 250 and -= 550 ' so that the first driving device 212 and the second driving device: The first light emitting portion 213 and the second light emitting device are in a flashing mode, and the two operate in a flashing nucleus of the phase. The method can cause the noise suppressor to recognize the second specific number point: and the second specific number of light spots 53G' reaches the re-month b of the present invention. The first embodiment is applied to the orientation of the interactive game =: different A plurality of players of the light pointer. The upper = the second and the second control signal 550 are transmitted by the noise suppression to the first driving device 212 and the material _ = 192 are respectively transmitted in a wireless manner. The same as the driving device 512 is the same as the third embodiment of the noise suppression method of the optical optical pointing system. This embodiment is a modification of the above-mentioned first and second embodiments of the present invention, which is the same as the above-mentioned two embodiments, and the optical pointing system is the same as the second embodiment described above. Narration. The method of suppressing noise in the optical pointing system is different from the above two embodiments in the following description. Referring to FIG. 2, when the optical receiver 220 in the optical pointing system 200 simultaneously captures a plurality of light spots and detects noise reaching a threshold, the noise suppressor 222 first sends a control signal to make all the light directors. The spot is emitted in a single flash mode to filter out all background noise. Moreover, when the noise suppressor 222 still captures a plurality of spots, a control signal is issued to cause the light directors to respectively emit light spots in different flash modes, thereby completing the identification of the light directors. Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the present invention, and it is possible to make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram showing the appearance of an optical pointing system. 2 is a block diagram of the optical pointing system 200 of the present invention. Figure 3A is a schematic view of the transmitting portion of the present invention in a general mode. FIG. 3B is a schematic diagram of the transmitting portion of the present invention in a first flashing mode. Figure 3C is a schematic diagram of the transmitting portion of the present invention in a second flashing mode. Fig. 4 is a flow chart showing the first embodiment of the noise suppression method of the optical pointing system of the present invention. Figure 5 is a schematic diagram of an optical pointing system having a plurality of optical directors. Figure 6 is a second embodiment of the noise suppression method of the optical pointing system of the present invention. 〇944-A41443-TW/Fina]] 1374044 Case No. 098118666 July 12, 101 Revision of the flowchart. Figure 7 is a flow chart showing a third embodiment of the noise suppression method of the optical pointing system of the present invention. [Main component symbol description] 100~ optical pointing system, 101~ photographic lens, 102~ light pointing device, 104~ light spot '105~ noise' 106' facet' 200~ optical pointing ' '210~ first light Pointer, 212~first drive device, 213~first light emitting part, 220~ light receiver, 221~ optical sensor, 222~ noise suppressor, 223~action tracking sensor, 230~first a specific number of spots, 240 to first pointing signals, 250 to first control signals, 510 to second optical directors, 5] 2 to second driving means, 513 to second light emitting portions, 550 to second control signals . 〇944-A41441-TW/Finall