200907877 九、發明說明： 【發明所屬之技術領域】 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】 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 開機後、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。 设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，才能進入投影機之投影系統。 然而，採用數字或文字之方式容易被解密，保密性能不高， 且輪入文子或數手之方式需借助鍵盤，操作不方便。口 【發明内容】 有蓉於此’有必要提供—種保密性能高、操作簡便< 投影機密碼系統及投影機密碼系統之使用方法。 -種投㈣投频m统 Γ和解密，所述投影機μ系統包括4碼單n耳 ^及-比對單元。所述密碼單元選擇—加 = 元將所述獲取軍元獲心圖片資訊。所述比對， 中存健之加密圖片資'圖片資訊與所述密碼“ 預解密圖片資訊與料②^對’當所顧取單元獲取之 同時，進入投影系早元+存错之加密圖片資訊相 200907877 一種投影機密碼系統之使用方法，其包括以下步驟： 選擇一加密圖片資訊並存儲所述加密圖片資訊； 獲取一預解密圖片資訊； 比較所獲取之預解密圖片資訊與所存儲之加密圖片資 '訊，當所獲取之預解密圖片資訊與所存儲之加密圖片資訊 相同時，進入投影系統。 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】 下面將結合附圖對本發明實施例作進一步之詳細說 明。 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。 所述獲取單元10用於獲取一預解密圖片資訊。 所述密碼單元20包括一選擇單元22 ' —存儲單元24 及一清除單元26。所述選擇單元22及所述清除單元26分 200907877 別與所述存儲單元24電性 加密圖片作為進入投_之：：早；22用於選擇- 24。清除單元26用於清 V;亚存儲至存儲單凡 H α ^ ^ 月除存儲早兀24内存儲之加密圖片 定加密㈣作為投影機進人投影系統之 *性=比對單ΐ 4〇分別與獲取單元10及存儲單元24 資訊與存儲單元24内存㈣之預解密圖片 2否進入投影機之投影系統進行投影。當獲 =之預解密圖片資訊與存儲單元24存儲之加㈣0 二相㈣’投影單元6G啟動投影機之投影系統開始投影。 §㈣平^獲取之預解密㈣資訊與存儲單A 24存儲 之加岔圖片貧訊不相同時’則提示單元8〇提示錯誤。 請參閑圖2,其為第一實施例之投影機密碼系統· 之使用方法’其包括以下步驟： 選擇一加密圖片並存儲所述加密圖片之資訊； 獲取一預解密圖片之資訊； 二3比對所獲取之預解密圖片資訊與所存儲之加密圖片資 訊是否相同，當所獲取之預解密圖片資訊與所存儲之加密 圖片資訊相同時’進人投影機之投影系統。當所獲取= 解密圖片資訊與所存儲之加密圖片資訊不 、 錯誤。 則美不 於選擇步驟中，利用密碼單元2〇之選擇單元22選擇 一加密圖片，並將所選擇之加密圖片資訊存儲至所述密碼 200907877 單元20,儲單* “中以作為進人投影系統之加密密 碼。遥擇旱兀22所選擇之加密圖片一般從電腦設備、手機 等，有存儲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& 22所選擇之圖片-般為點陣圖 (Blt_M叩 BMP)、標記圖像檔格式（Tagged Image File Format 。）等秸式之圖片及由視頻播放設備所播放之靜態視頻 訊號二所述之圖片資訊—般包括圖像之格式、尺寸、解析 又資料X員3L圖像大小及圖像畫素特徵等資料資訊。 '於獲取步驟中’利用獲取單元1〇獲取—預解密圖片作 為投影機之開機解密密碼。獲取單元1〇 一般從電腦設備、 手機等具有存儲及傳輸功能之元件得到圖片並獲取預解密 圖片之資訊，獲取單元10所獲取之圖片一般為點陣= (BU 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。 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2〇之存儲單元24内存儲 力L圖片資5凡，並通過比對以判斷獲取單元1 〇之預解密 圖片2訊與所述存儲單元24存儲之加密圖片資訊是否相 同昌獲取單元10内之預解密圖片資訊與存儲單元24内 之圖片資汛相同時，則投影單元6〇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 始、圖片資訊與存儲單元24内之加密圖片資訊不相同時，則 提不單兀80提示錯誤，不能使用投影機之投影系統。 10 200907877 可以理解，於比對步驟中， 穷圖η杳4 Α 匕對兀解岔圖片資訊與加 山固片貝讥相同，投影機可開始 影機之投影系統之密$。利用a後’遇可重新更換投 、、主广在『… 费碼單元2〇之清除單元％ 會m _ 口月貝訊’利用選擇單元22 重新k擇一加岔圖片並存儲 相王山石馬早兀20之存儲置分 中以作為進入投影機之於旦；备 固u 機之技衫系統之新密碼。所選擇之加宓 圖片可隨機選取投影機枵马夕同μ〜 山 從& 〜械技衫之圖片資訊或從外部通信設備 獲取之圖片資訊均可。存儲單元 仔储早凡24中重新存儲新選擇之加 …片貝Λ作為投影機下次❹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。 〃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 黾對杈衫機進行保護，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。 综上所述，本發明確已符合發明專利之要件， JL 日 » ft*、 、專利申請。惟，以上所述者僅為本發明之較佳實施方 、 本I明之範圍並不以上述實施方式為限，舉凡熟習本 >、技‘之人士援依本發明之精神所作之等效修飾或變化， 备應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1為本發明實施例之投影機密碼系統模組圖。 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】 11 200907877 投影密碼系統 100 獲取單元 10 密碼單元 20 選擇單元 22 存儲單元 24 清除單元 26 比對單元 40 投影單元 60 提示單元 80 12200907877 IX. Description of the Invention: [Technical Field] The present invention relates to a projector cryptosystem and a method of using a projector cryptosystem. [Prior Art] Commercial and educational projectors are generally public property, so make sure that only authorized personnel can use them. When using the projector, it is generally implemented after power-on and code protection to protect and manage the projector and prevent the projector from being used illegally. The method of setting the power-on password generally uses digital or text as the projector power-on password. When the password is correct, it can enter the projection system of the projector. However, the method of using digital or text is easy to be decrypted, the security performance is not high, and the way of turning in the text or the number of hands requires the use of a keyboard, which is inconvenient to operate. Mouth [Summary] There is a need to provide a kind of high security and easy operation. The projector password system and the projector password system are used. - Projection (4) Frequency division m system and decryption, the projector μ system includes 4 code single n and ^ - alignment units. The cryptographic unit selects - plus = the element to obtain the image information of the obtained military unit. The comparison, the Chinese image of the encrypted image of the image of the 'picture information and the password' pre-decrypted picture information and material 2 ^ right 'when the acquisition unit obtains, enters the projection system early element + the wrong encrypted picture Information phase 200907877 A method for using a projector cryptosystem, comprising the steps of: selecting an encrypted picture information and storing the encrypted picture information; obtaining a pre-decrypted picture information; comparing the obtained pre-decrypted picture information with the stored encryption The picture resource, when the obtained pre-decrypted picture information is the same as the stored encrypted picture information, enters the projection system. Compared with the prior art, the projector password system and the projector password system use the picture The password of the projector entering the projector protects the projector, and the operation is simple, and the security performance of the projector is enhanced, so that the projector is better protected. [Embodiment] The following is a description of the embodiment of the present invention with reference to the accompanying drawings. Further detailed description, please refer to FIG. 1 , which is a projector cryptosystem 1 according to a first embodiment of the present invention. The projector cryptosystem 100 encrypts and decrypts the projection system using a picture. The projector cryptosystem 100 includes an acquisition unit 10, a cryptographic unit 20, a comparison unit 40, and a prompt unit 80. The unit 40 is electrically connected to the acquiring unit 10, the cryptographic unit 20, the projection unit 60, the prompting unit 80, and a projection unit 60. The obtaining unit 10 is configured to acquire a pre-decrypted picture information. The cryptographic unit 20 includes a selection unit 22' - a storage unit 24 and a clearing unit 26. The selecting unit 22 and the clearing unit 26 are respectively associated with the storage unit 24 to electrically encrypt the picture as an entry _ It is: early; 22 is used for selection - 24. Clearing unit 26 is used to clear V; sub-storage to storage unit where H α ^ ^ Month saves the stored encrypted image in the early 24th encryption (4) as the projector into the projection System*=Comparative unit 〇4〇 and the acquisition unit 10 and the storage unit 24 information and storage unit 24 memory (4) pre-decrypted picture 2 is not projected into the projector's projection system for projection. The information and storage unit 24 stores the added (4) 0 two-phase (four) 'projection unit 6G to start the projection system of the projector to start projection. § (four) level ^ acquisition of the pre-decryption (four) information and storage list A 24 storage of the coronation picture is not the same 'The prompting unit 8 〇 prompts an error. Please refer to FIG. 2, which is a method for using the projector cryptosystem of the first embodiment'. The method includes the following steps: selecting an encrypted picture and storing the information of the encrypted picture; Information of a pre-decrypted picture; whether the pre-decrypted picture information obtained by the second and third comparisons is the same as the stored encrypted picture information, and when the obtained pre-decrypted picture information is the same as the stored encrypted picture information, the projector is entered into the projector. The projection system. When the acquired = decrypted picture information and the stored encrypted picture information is not, the error. In the selection step, the selection unit 22 of the cryptographic unit 2 is used to select an encrypted picture, and the selected encrypted picture information is stored in the password 200907877 unit 20, the storage order* is used as the entrance projection system. The encrypted password is selected from the computer equipment, mobile phone, etc., which has the functions of storage and transmission, and can also be obtained when the projector itself is projected. Select single & 22 selected The picture-like picture of the bitmap (Blt_M叩BMP), the Tagged Image File Format (Tagged Image File Format), and the picture information described by the static video signal 2 played by the video playback device are generally included. Image format, size, analysis and data information such as X-member 3L image size and image pixel characteristics. In the acquisition step, the acquisition unit 1 is used to obtain the pre-decrypted image as the boot decryption password of the projector. The obtaining unit 1 generally obtains a picture from a component having a storage and transmission function such as a computer device or a mobile phone, and acquires information of the pre-decrypted picture, and acquires a picture obtained by the unit 10. Generally, it is a picture of a format such as dot map = (BU Map BMP), Tagged Image File Format TIFF, and a static video signal played by a video playback device. In the comparison step, the comparison unit 4 is utilized. 〇 receiving the pre-decrypted picture information obtained by the acquiring unit 1 and storing the power L in the storage unit 24 of the cryptographic unit 2, and comparing the pre-decrypted picture 2 of the obtaining unit 1 to the storage by comparison When the encrypted picture information stored in the unit 24 is the same as the picture information in the storage unit 24, the projection unit 6 starts the projection system of the projector to start using the projector for the projection operation. When the pre-solution start in the acquisition unit 1 and the picture information are different from the encrypted picture information in the storage unit 24, the error of the screen is not displayed, and the projection system of the projector cannot be used. 10 200907877 It can be understood that Yubi In the step, the image of the poor image η杳4 Α 匕 is the same as that of the Jiashan solid film, and the projector can start the secret of the projection system of the camera. After a, you can change the investment again, and the main is in the 『... The code unit 2 〇 clearing unit% will m _ 口月贝讯' use the selection unit 22 to re-select a crowning picture and store the phase Wangshan Shima early兀20 storage is set as the access to the projector; the new password of the technical system of the u machine is prepared. The selected coronation picture can be randomly selected projector 枵马夕同μ~山从& The picture information of the mechanical shirt or the picture information obtained from the external communication device can be stored. The storage unit will store the new selection in the 24th memory. The film will be used as the password of the projector next projection system. Repeat the above steps. Start decrypting to enter the projection system. Compared with the prior art, the use of the projector cryptosystem and the projector cryptosystem protects the zipper machine as a key to the projection system of the projector, and is easy to operate and enhances the use of the projector. The confidentiality of the projector makes the projector better protected. In summary, the present invention has indeed met the requirements of the invention patent, JL Day » ft*, and patent application. 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 and technology will be equivalently modified according to the spirit of the present invention. Or changes, should be included in the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a projector cryptosystem according to an embodiment of the present invention. 2 is a flow chart showing a method of using a projector cryptosystem according to an embodiment of the present invention. [Main component symbol description] 11 200907877 Projection cryptosystem 100 Acquisition unit 10 Cryptographic unit 20 Selection unit 22 Storage unit 24 Clearing unit 26 Alignment unit 40 Projection unit 60 Prompt unit 80 12