13^270 099年08月09日按正替換頁 六、發明說明： , 【發明所屬之技術領域】 [0001] 本發明涉及一種投影機密碼系統及投影機密碼系統之使 用方法。 【先前技術】 [0002] 商用和教學用之投影機一般係公共財產，所以要確保只 有經過授權之人才可以使用。使用投影機時，一般實行 開機密碼保護，以便於對投影機之保護和管理，防止投 影機被非法使用。 [0003] 設置開機密碼之方式一般採用數字或文字等作為投影機 開機密碼，當密碼正確時，未::能進入投影也:之投影系統 。然而，採用數字或文字之本式聲易被解密，保密性能 不高，且輸入文字或數字之方式需借助鍵盤，操作不方 便。 【發明内容】 [0004] 有鑒於此，有必要提供一種保密性能高、操作簡便之投 影機密碼系統及投影機密碼系統之使用方法。 [0005] —種投影機密碼系統，其對投影機之投影系統進行加密 和解密，所述投影機密碼系統包括一密碼單元、一獲取 單元及一比對單元。所述密碼單元選擇一加密圖片資訊 並儲存。所述獲取單元獲取一預解密圖片資訊。所述比 對單元將所述獲取單元獲取之預解密圖片資訊與所述密 碼單元中儲存之加密圖片資訊進行比對，當所述獲取單 元獲取之預解密圖片資訊與所述密碼單元中儲存之加密 圖片資訊相同時，進入投影系統。 096129534 表單編號 A0101 第 4 頁/共 13 頁 0993284700-0 1338270 099年08月09日修正替換頁 [0006] —種投影機密碼系統之使用方法，其包括以下步驟： [0007] 選擇一加密圖片資訊並儲存所述加密圖片資訊； [0008] 獲取一預解密圖片資訊； [0009] 比較所獲取之預解密圖片資訊與所儲存之加密圖片資訊 ，當所獲取之預解密圖片資訊與所儲存之加密圖片資訊 相同時 '進入投影系統。 [0010] 相較於先前技術，所述投影機密碼系統及投影機密碼系 統之使用方法，將圖片作為進入投影機之投影系統之密 碼對投影機進行保護，操作簡便，同時增強了投影機使 用之保密性能，使投影機得到更好保護。 【實施方式】 [0011] 下面將結合附圖對本發明實施例作進一步之詳細說明。 [0012] 請參閱圖1，其為本發明第一實施例之投影機密碼系統 100。該投影機密碼系統100利用圖片對投影系統進行加 密和解密。所述投影機密碼系統100包括一獲取單元10、 一密碼單元20、一比對單元40及一提示單元80。所述比 對單元40分別與所述獲取單元10、所述密碼單元20、所 述投影單元60、所述提示單元80及一投影單元60電性連 接。 [0013] 所述獲取單元10用於獲取一預解密圖片資訊。 [0014] 所述密碼單元20包括一選擇單元22、一儲存單元24及一 清除單元26。所述選擇單元22及所述清除單元26分別與 所述儲存單元24電性連接。選擇單元22用於選擇一加密 096129534 表單編號A0I01 第5頁/共13頁 0993284700-0 1338270 099年08月09日修正替换頁 圖片作為進入投影系統之密碼並儲存至儲存單元24。清 除單元26用於清除儲存單元24内儲存之加密圖片資訊， 以便重新設定加密圖片作為投影機進入投影系統之密碼 〇 [0015] 所述比對單元40分別與獲取單元10及儲存單元24電性連 接。比對單元40將獲取單元10獲取之預解密圖片資訊與 儲存單元24内儲存之加密圖片資訊進行比對以判斷是否 進入投影機之投影系統進行投影。當獲取單元10獲取之 預解密圖資訊與儲存單元24儲存之加密圖片資訊相同 時，投影單元60啟動投影機之投影系統開始投影。當獲 取單元10獲取之預解密圖片資訊與儲:存草元;2 4儲存之加 密圖片資訊不相同時，則提示單元80提示錯;誤。 [0016] 請參閱圖2，其為第一實施例之投影機密碼系統100之使 用方法，其包括以下步驟： [0017] 選擇一加密圖片並儲存所述加密圖片之資訊； [0018] 獲取一預解密圖片之資訊； [0019] 比對所獲取之預解密圖片資訊與所儲存之加密圖片資訊 是否相同，當所獲取之預解密圖片資訊與所儲存之加密 圖片資訊相同時，進入投影機之投影系統。當所獲取之 預解密圖片資訊與所儲存之加密圖片資訊不相同時，則 提示錯誤。 [0020] 於選擇步驟中，利用密碼單元20之選擇單元22選擇一加 密圖片，並將所選擇之加密圖片資訊儲存至所述密碼單 元20之儲存單元24中以作為進入投影系統之加密密碼。 096129534 表單編號A0101 第6頁/共13頁 0993284700-0 丄⑽:Z 70 099年08月09日後正替换頁 選擇單元22所選擇之加资圖片一般從電腦設備、手機等 具有儲存及傳輪功能之元件獲取，也可於投影機本身投 影時獲取。選擇單元22所選擇之圖片一般為點陣圖 (Bit-Map BMP)、標記圖像檔格式（Tagged Image Flle Format TIFF)等格式之圖片及由視頻播放設備所 播放之靜態視頻訊號。所述之圖片資訊一般包括圖像之 格式、尺寸、解析度、資料類型、圖像大小及圖像畫素 特徵等資料資訊。 [0021] 於獲取步驟中’利用獲取單元10獲取一預解密圖片作為 投影機之開機解密密碼。獲取單元丨〇 一般從電腦設備、 手機等具有儲存及傳輸功能士元件得到圖片並獲取預解 密圖片之資訊’獲取單元1〇所獲取之圖片一般為點陣圖 (Bit-Map BMP)、標記圖像檔格式（Tagged Image File Format TIFF)等格式之圖片及由視頻播放設備 所播放之靜態視頻訊號。 [0022] 於比對步驟中，利用比對單元4〇接收獲取單元1〇獲取之 預解密圖片資訊及密碼單元2〇之儲存單元24内儲存之加 密圖片資訊，並通過比對以判斷獲取單元1〇之預解密圖 片資訊與所述儲存單元24儲存之加密圖片資訊是否相同 。當獲取單元10内之預解密圖片資訊與儲存單元24内之 圖片資訊相同時，則投影單元60啟動投影機之投影系統 以開始使用投影機進行投影操作。當獲取單元1〇内之預 解密圖片資訊與儲存單元24内之加密圖片資訊不相同時 ，則提示單元80提示錯誤，不能使用投影機之投影系統 096129534 表單煸號A0101 第7頁/共13頁 0993284700-0 1338270 099年08月09日修正替換頁 [0023] 可以理解，於比對步驟中，.比坪完解密圖片資訊與加密 圖片資訊相同，投影機可開始投影後，還可重新更換投 影機之投影系統之密碼。利用密碼單元20之清除單元26 清除儲存單元24儲存之加密圖片資訊，利用選擇單元22 重新選擇一加密圖片並儲存至密碼單元20之儲存單元24 中以作為進入投影機之投影系統之新密碼。所選擇之加 密圖片可隨機選取投影機投影之圖片資訊或從外部通信 設備獲取之圖片資訊均可。儲存單元24中重新儲存新選 擇之加密圖片資訊作為投影機下次使用投影系統之密碼 ，重複上述之步驟開始解密以進入投影系統。 [0024] 相較於先前技術，所述投影:概:密嘁系統及投影機密碼系 0' 統之使用方法，將圖片作為i入投影機之投影系統之密 碼對投影機進行保護，操作簡便，同時增強了投影機使 用之保密性能，使投影機得到更好保護。 [0025] 综上所述，本發明確已符合發明專利之要件，爰依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，本發明之範圍並不以上述實施方式為限，舉凡熟習 本案技藝之人士援依本發明之精神所作之等效修飾或變 化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0026] 圖1為本發明實施例之投影機密碼系統模組圖。 [0027] 圖2為本發明實施例之投影機密碼系統使用方法流程圖。 【主要元件符號說明】 [0028] 投影密碼系統：100 096129534 表單編號A0101 第8頁/共13頁 0993284700-0 1338270 099年08月09日核正替换頁 [0029] 獲取單元 [0030] 密碼單元 [0031] 選擇單元 [0032] 儲存單元 [0033] 清除單元 [0034] 比對單元 [0035] 投影單元 [0036] 提示單元 10 20 22 24 26 40 60 80 096129534 表單編號A0101 第9頁/共13頁 0993284700-013^270 On August 09, 099, the replacement page is replaced. VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a method for using a projector cryptosystem and a projector cryptosystem. [Prior Art] [0002] Commercial and teaching projectors are generally public property, so make sure that only authorized personnel can use them. When using the projector, the power-on password protection is generally implemented to facilitate the protection and management of the projector and to prevent the projector from being used illegally. [0003] The way to set the power-on password generally uses digital or text as the projector power-on password. When the password is correct, it does not:: can enter the projection system: the projection system. However, the sound of the digital or text is easily decrypted, the security performance is not high, and the way of inputting text or numbers requires a keyboard, and the operation is not convenient. SUMMARY OF THE INVENTION [0004] In view of the above, it is necessary to provide a projector cryptosystem with high security performance and easy operation, and a method of using a projector cryptosystem. [0005] A projector cryptosystem that encrypts and decrypts a projection system of a projector, the projector cryptosystem including a cryptographic unit, an acquisition unit, and a comparison unit. The cryptographic unit selects an encrypted picture information and stores it. The acquiring unit acquires a pre-decrypted picture information. The comparison unit compares the pre-decrypted picture information acquired by the obtaining unit with the encrypted picture information stored in the cryptographic unit, and the pre-decrypted picture information obtained by the obtaining unit and the cryptographic unit are stored When the encrypted picture information is the same, enter the projection system. 096129534 Form No. A0101 Page 4 of 13 0993284700-0 1338270 Correction Replacement Page for August 09, 099 [0006] A method of using a projector cryptosystem, comprising the following steps: [0007] Selecting an encrypted picture information And storing the encrypted picture information; [0008] obtaining a pre-decrypted picture information; [0009] comparing the obtained pre-decrypted picture information with the stored encrypted picture information, when the obtained pre-decrypted picture information and the stored encryption Enter the projection system when the picture information is the same. [0010] Compared with the prior art, the projector cryptosystem and the method of using the projector cryptosystem protect the projector as a password of the projection system entering the projector, and the operation is simple, and the projector is enhanced. The confidentiality of the projector makes the projector better protected. [Embodiment] Hereinafter, embodiments of the present invention will be further described in detail with reference to the accompanying drawings. Please refer to FIG. 1, which is a projector cryptosystem 100 according to a first embodiment of the present invention. The projector cryptosystem 100 utilizes pictures to encrypt and decrypt the projection system. The projector cryptosystem 100 includes an acquisition unit 10, a cryptographic unit 20, a comparison unit 40, and a prompting unit 80. The comparison unit 40 is electrically connected to the acquisition unit 10, the password unit 20, the projection unit 60, the prompt unit 80, and a projection unit 60, respectively. [0013] The obtaining unit 10 is configured to acquire a pre-decrypted picture information. [0014] The cryptographic unit 20 includes a selection unit 22, a storage unit 24, and a clearing unit 26. The selection unit 22 and the cleaning unit 26 are electrically connected to the storage unit 24, respectively. The selection unit 22 is used to select an encryption 096129534 Form number A0I01 Page 5 of 13 0993284700-0 1338270 Correction replacement page on August 09, 099 The picture is used as a password for entering the projection system and stored in the storage unit 24. The clearing unit 26 is configured to clear the encrypted picture information stored in the storage unit 24, so as to reset the encrypted picture as the password of the projector entering the projection system. [0015] The comparison unit 40 is electrically connected to the acquisition unit 10 and the storage unit 24, respectively. connection. The comparing unit 40 compares the pre-decrypted picture information acquired by the obtaining unit 10 with the encrypted picture information stored in the storage unit 24 to determine whether to enter the projection system of the projector for projection. When the pre-decryption map information acquired by the acquisition unit 10 is the same as the encrypted picture information stored by the storage unit 24, the projection unit 60 activates the projection system of the projector to start projection. When the pre-decrypted picture information obtained by the obtaining unit 10 is stored and stored: if the stored encrypted picture information is different, the prompting unit 80 prompts an error; [0016] Please refer to FIG. 2, which is a method for using the projector cryptographic system 100 of the first embodiment, which includes the following steps: [0017] selecting an encrypted picture and storing the information of the encrypted picture; [0018] obtaining one Pre-decrypting the information of the picture; [0019] comparing the obtained pre-decrypted picture information with the stored encrypted picture information, and entering the projector when the obtained pre-decrypted picture information is the same as the stored encrypted picture information Projection system. When the obtained pre-decrypted picture information is different from the stored encrypted picture information, an error is indicated. [0020] In the selecting step, the selecting unit 22 of the cryptographic unit 20 selects an encrypted picture, and stores the selected encrypted picture information into the storage unit 24 of the cryptographic unit 20 as an encrypted password to enter the projection system. 096129534 Form No. A0101 Page 6 of 13 Page 0993284700-0 丄(10): Z 70 After August 09, 099, the replenishment page selected by the page selection unit 22 generally has storage and transfer functions from computer equipment and mobile phones. The component acquisition can also be obtained when the projector itself projects. The picture selected by the selection unit 22 is generally a picture in the form of a bitmap (Bit-Map BMP), a Tagged Image Fowl Format (TIFF) format, and a still video signal played by the video playback device. The picture information generally includes information such as format, size, resolution, data type, image size, and image pixel characteristics of the image. [0021] In the obtaining step, the acquisition unit 10 acquires a pre-decrypted picture as the boot decryption password of the projector. The acquisition unit generally obtains pictures from a computer device, a mobile phone, and the like, and obtains a picture of a pre-decrypted picture. The image obtained by the acquisition unit 1 is generally a bitmap (Bit-Map BMP), a mark map. Pictures in formats such as Tagged Image File Format TIFF and static video signals played by video playback devices. [0022] In the comparison step, the comparison unit 4 receives the pre-decrypted picture information acquired by the obtaining unit 1 and the encrypted picture information stored in the storage unit 24 of the cryptographic unit 2, and compares the information to determine the acquisition unit. Whether the pre-decrypted picture information is the same as the encrypted picture information stored by the storage unit 24. When the pre-decrypted picture information in the acquisition unit 10 is the same as the picture information in the storage unit 24, the projection unit 60 activates the projection system of the projector to start the projection operation using the projector. When the pre-decrypted picture information in the acquiring unit 1 is different from the encrypted picture information in the storage unit 24, the prompting unit 80 prompts an error, and cannot use the projection system of the projector 096129534. Form number A0101 Page 7 of 13 0993284700-0 1338270 Correction replacement page of August 09, 099 [0023] It can be understood that in the comparison step, the information of the decrypted picture is the same as that of the encrypted picture information, and the projector can start to project the projection and then replace the projection. The password of the projection system of the machine. The encrypted picture information stored by the storage unit 24 is cleared by the clearing unit 26 of the cryptographic unit 20, and an encrypted picture is reselected by the selecting unit 22 and stored in the storage unit 24 of the cryptographic unit 20 as a new password for entering the projection system of the projector. The selected encrypted image can be randomly selected from the image information projected by the projector or the image information obtained from the external communication device. The newly selected encrypted picture information is re-stored in the storage unit 24 as the password of the projector to use the projection system next time, and the above steps are repeated to start decryption to enter the projection system. [0024] Compared with the prior art, the projection: the password system and the projector password system 0' are used to protect the projector as a password of the projection system of the projector into the projector, and the operation is simple. At the same time, it enhances the confidentiality of the projector and makes the projector better protected. [0025] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0026] FIG. 1 is a block diagram of a projector cryptosystem according to an embodiment of the present invention. 2 is a flow chart of a method for using a projector cryptosystem according to an embodiment of the present invention. [Main component symbol description] [0028] Projection password system: 100 096129534 Form number A0101 Page 8/Total 13 page 0993284700-0 1338270 099 August 09 nuclear replacement page [0029] Acquisition unit [0030] Password unit [ 0031] Selection unit [0032] Storage unit [0033] Clear unit [0034] Alignment unit [0035] Projection unit [0036] Prompt unit 10 20 22 24 26 40 60 80 096129534 Form number A0101 Page 9 / Total 13 page 0993284700 -0