1278747 九、發明說明： 【發明所屬之技術領域】 本發_為1可攜式設備及其自動備 有儲存功能的外接式週邊裝置及其自動= 【先前技術】 初次=ΐ腦ί，而言：當一個新的週邊裝置連接到電腦 壯， 寸、知的作業系統需要為這個新的週邊梦詈患 ::應：：動:呈：:驅動程式是由好幾組指令組成的—種 要絲指示作業系統如何操作此驅動裝置。若 二統:識別此新的週邊裝置且也能相對提供 :式，則可由作業系統對此週邊裝置執行 =1278747 IX. Description of the invention: [Technical field of invention] The present invention is a portable device and an external peripheral device automatically equipped with a storage function and its automatic = [Prior Art] First time = ΐ brain ί, : When a new peripheral device is connected to the computer, the operating system of the inch and the knowledge needs to be affected by this new peripheral dream:: should:: move: present:: the driver is composed of several sets of instructions - a kind of wire Indicates how the operating system operates this drive. If the second system: recognizes this new peripheral device and can also provide a relative formula, it can be executed by the operating system for this peripheral device.
;、兄=統並非皆能識別每-個新的嶋置^ =之下財如钱方式㈣輕置㈣提供載有^ 裊式的光碟或軟碟拿來進行驅動程式安裝。 '' J 取^隨著目前電腦之f及化，數位資料的儲存技術早已 戈傳狀紙張記錄的方式，触資料 ί，如可快速編輯、永久保存、記憶容量大...等3=寸 2是在可攜式設備的出現之後，如咖硬^ 储存更是快速擴展到可跟著使用者進二 =貝枓的 攜式設備的驅動程式安裝方式而言，若仍=查而以可 ，或軟碟的方式安裝驅動程式，使以=: τ光碟或軟碟，才得以在另— 士也％要^身攜 裝驅動程式，但多攜帶光碟 備順利安 7、、、°果，相對造成使用 1278747 者的攜帶負擔。 而在針對可攜式設備的驅動程式之安裝技術，如美國 專利US 6754725號，已有揭露讓USB週邊裝置町以具有自 動安裝驅動程式的機制。以美國專利us 號而言， 係於週邊裝置内設置有驅動程式，並於週邊裝I連接於電 腦之後，電腦與週邊裝置之間以USB通訊協定進行溝通傳 輸，而得以讓電腦識別此週邊裝置並以大容量儲存裝置 (MASS STORAGE DEVICE)表示，而電腦安裝週邊裝置所需 的驅動程式，可以從週邊裝置本身取得，而當順利完成週 邊裝置的驅動程式安裝，電腦就可以操作此週邊裝置。 另一方面，對於電腦資料的備份，利用USB裝置（如 USB硬碟盒）來當做備份方案裡頭的儲存是個很好的選 擇’因為現在的電腦大都支援USB介面，而且USB裝置隨 插即用、可攜性高。但是，現有備份資料在USB硬碟盒的 方式，仍需以手動方式將電腦中想要備份的資料儲存到 USB硬碟盒，如以美國專利US 6754725號所提供的方式 僅只旎提供自動安裝驅動程式的功能操作，尚無法完全作 到同B寸整合自動備份資料的功能。此外USB的方便也會有 延伸出來問題，如USB硬碟盒已經在市面上出現一段日曰夺間 ^也有人將匕皐來當作備份的裝置，這樣的確能發揮備 ^功效。但萬-不小心把USB硬碟盒弄丢了，裡頭儲 貧料很容易被他人讀取，顯然現有USB硬碟盒袢 、 料保密性财待提昇。 存的資 【發明内容】 本發明所要解決的技術問題，在於提供一種可 μ 」揭式設 1278747 ^ 可攜式設備連接電腦使用時， 月b夠自動4驅動程式及自動對電腦的資料備份。 上述技姻題’根據本發明的―種方案 I動備ϋ式5又備的自動備份方法，係將—電腦中的 自動備伤到該可攜式設備中，包括 、枓;, brother = not all can identify each new device ^ = under the money like money (four) light (4) to provide a CD-ROM or floppy disk for driver installation. '' J Take ^ With the current computer f, the digital data storage technology has long been the way to record paper, touch the data ί, such as fast editing, permanent preservation, memory capacity, etc. 3 = inch 2 is after the emergence of portable devices, such as coffee and hardware storage is a fast extension to the driver installation method that can follow the user into the second = Belle portable device, if still = check it, Or install the driver in the way of a floppy disk, so that you can use the =: τ CD or floppy disk to get the driver in the other - you also need to carry the driver, but you can carry the CD-ROM smoothly. The burden of carrying the person using 1278747. In the installation technology of a driver for a portable device, such as U.S. Patent No. 6,754,725, it has been disclosed that the USB peripheral device has a mechanism for automatically installing a driver. In the U.S. patent, the driver is installed in the peripheral device, and after the peripheral device I is connected to the computer, the computer and the peripheral device communicate and transmit by USB communication protocol, so that the computer can recognize the peripheral device. It is represented by a large-capacity storage device (MASS STORAGE DEVICE), and the driver required for the computer to install the peripheral device can be obtained from the peripheral device itself, and the computer can operate the peripheral device when the driver installation of the peripheral device is successfully completed. On the other hand, for the backup of computer data, it is a good choice to use a USB device (such as a USB hard disk box) as a backup solution in the backup solution. Because most computers now support the USB interface, and the USB device is plug and play. High portability. However, in the manner of the existing backup data in the USB hard disk box, the data to be backed up in the computer needs to be manually stored in the USB hard disk box, and only the automatic installation driver is provided in the manner provided by US Pat. No. 6,755,725. The function of the program is not fully integrated with the B-inch integrated automatic backup data. In addition, the convenience of USB will also be extended. For example, the USB hard disk box has already appeared in the market for a while. Some people will use it as a backup device, which can really play a role. But Wan - accidentally lost the USB hard disk box, and the poor storage inside is easy to be read by others. Obviously, the existing USB hard disk box and the confidentiality of the confidentiality are improved. SUMMARY OF THE INVENTION [Technical Problem] The technical problem to be solved by the present invention is to provide a device that can be connected to a computer, and that is capable of automatically downloading a driver and automatically backing up data to the computer. According to the invention, the automatic backup method of the mobile device 5 is automatically prepared for damage to the portable device, including,
有-程式儲存單元及—㈣儲存單元，其中供 儲存有供安裝可攜式設備於電腦所 ^ t =早7L 單元用來供電腦儲存資料；（b)當可/ t ^料错存 時，接收從電腦送出的一詢問 ' D又連接至電腦 可攜式域具有程式儲存單元4料 示 月包可以執行自動執行功能時，啟動 ’ U電 執行程式；（e)安裝該程式儲存單元^早几中的自動 腦:，岐電腦可由驅動程式辨識資料‘f動程式於電 動程式儲存單元巾的-備錄式， =，（f)啟 腦中資料要備份的一備份資料來源位为程式設定有電 備份資料來源位置所儲存的資料到資料铸=一U ) 為了解決Jlii技術問題，根據本 提供-種可攜式設備，包括：用以與種方 電路；-資料儲存單元；—程式儲存 j接的一 動執行程式、一驅動程式及一備份程式〃包含有 玎供自動執行於該電腦，驅動程式可;二而自動執行： 攜式設備，備份程式可供備份電腦杳=腦f裴以辨— 中；以及—控制單元控制資料儲存單元與^貪，儲存 通訊傳輪’以及程式儲存單元與介面單、面單元之 輸；因此當介面電路連接該電腦時，护之間的通- 出的-詢問訊號，並回應訊號給電早元接收電） 指示可攜式設 丄278747 有程式儲存單元及資 5式，自動將驅動程式安】::腦 備份電腦的資料到資料儲備份程式自動 可攜Ϊ3Γ的可攜式設備及其自動備份方法。，由， 式儲存單元 :电知辨為為一虛儲存！置的1 式儲存單元中儲;貧料儲存的資料儲存單元，並在r 以讓可攜式設備响式，而; 自_電崎料料騎攜式設備崎料儲^單式^ 【實施方式】 明之詳細說明與附圖，：:=，請辣 當可由此得-深入且4 明之目的、特徵與特點， 考舆來對本：=圓式僅提供參 ，成是—資料儲存以二其可供與電腦2。連接 早70 U，此程式儲存單 備1G具有-程式儲存 於電腦20時執行安7^ f存有供可攜式設備10連接 式儲存單元12儲存右、目關程式。如第二圖所示，程 及資料保護程式，而式、‘鶴料、備份程式 本實施例中，程式儲存=由指令或程式碼、組成。在 閃式§己憶體、電子抹 系以非揮發性記憶體（如快 除式錢體）提供電腦20作資料讀/ 1278747 存媒介’而在電腦2G中係將非揮發性記卜辨 式嗖備10、圭1 yst〇ragedevice)，因此當可# 細虛物：二】?2012的，作業系“ 赛電腦:°讀取程式健存單元1二Γ:容一部份’並可 來供電腦20儲存資料伸用J枓储存早兀13，主要用 為趙邊儲存裝置，如外^切的㈣儲存單元13 隹也可以是結目1式碟（External hard咖）， 存單元12所儲存的的儲存媒體。而前述程式儲 心2空制單元11則是控制程式儲存單 趁制單元11可以面電路14之間的通訊傳輪， :叫特殊應用積體;路？=器^ 略（PLD、CPLD、FPGA等）。可#二式避輯電 。為崎面的傳輸規格 即插即用（Plug & Play )。 又備10可以 復參閱第一圖，因此當可样“ η 時，介面電路u與㈣轉換:妾於電腦20 心Μ紋傳輸資訊，使得主機=2透過排線且依照USB 10經由-定的溝通程序，統22可與可攜式設備 教逢-步在電腦i。内部安VI =間的通訊連接關係， 式，而本= 式設備1G的驅動程 %鵰自動安裝。 吻爿子早兀12係可以提供驅動程式給 圖。料树明轉作流程 N冬貝％例提供的可攜式士/ '口又備10係可自動備份電腦資料 1278747 在可攜式設備l〇内部的資料待 σ — 首先將可攜式設備Η)連胁1 = = 13,其操作方式為·· 時，並根據所使用的USB傳輪n f的週輕置連接到電腦 -詢問訊號給可攜式設備i 〇 ?疋曰’主機：業系統2 2發出 那些的操作功能（湖）。 #知可以設備10具有 式設備H)接收到 ;儲;?式:fl!會主動回應訊號告知= 式儲存早70 12及貧料儲存單 /、有杠 施例而言可攜式設備1G針對=巧3()5)，以本實 :::回應訊。係二裝 巧元13的這-部分，所二 表示。因此當電腦2〇收到可j=Pheral device)訊息 :广機作業系統22將程式;;;： 使用的虛儲存裝置&子早70:13辨識兀成為一可 使用的能力。如公知沿.二使虛儲存I置具有被電腦操作 腦操作使用時，電腦個外接的周邊裝置要能被電 之後電腦即可正;必須對其安裝驅動程式， 示，而讓主機t業腦;後，係以可供電腦辨識的磁碟表 取。 ......4 22可對虛儲存裝置内的資料作讀 備^12供電腦辨識完成之後，可攜式設 (S 3 0 9)。當#㈣=2 2的標案自動執行功能是否開啟 單元12儲存的自=機作業系統22執行程式儲存 動執仃程式（S311);否則主機作業系統 10 1278747 22:斷外接的週邊裝 中安裝有驅動程式（S317貝才十堵存早兀）是否已在電腦 係當成外接式硬碟。 其中此週邊裴置在本實施例中 外接主機作業系統22亦判斷 若判斷結果否，則_邊=^^驅動程式（S3⑻， 驅動程式係可以供主機;;置手 判斷結果為是=糸統攸虛儲存裝置取得。而若 ^疋則到下一步驟繼續執行。 f置功能未被開啟且電腦也未安裝外接週邊 "々驅動私式％’主機作業系統22提 程式及安裝（S319)，使用去料於λ ^ 輪驅動 ^世* 使用者卩了輪入含有此驅動程式的光 浐二广中特定位置，以執行外接週邊裝置的驅動 牙王式女表程序。 因此當週邊裝置的驅動程式已安裝在電腦後，電腦即 可建立週邊裝置與驅動程式在電腦中的聯結關係（S321)。 而當週邊裝置可被電腦正常使用，進一步判斷週邊裝置是 否已出始化（S323) ’即外接式硬碟有無格式化。若判斷為 否則對週邊装置執行格式化的初始動作（S325 )。 而當週邊裝置已初始化，則啟動資料保護程式 (S327)，此步驟詳細操作過程如第四圖所示，本實施例的 資料保護程式係提供密碼輸入的核對保護，以確定使用者 是否有權利使用可攜式設備。 而當通過資料保護程式的身分核對正確之後，則啟動 備份程式（S329)，此步驟詳細操作過程如第五圖所示，本 實施例的備份程式係自動將電腦中預設要備份的資料備份 到週邊裝置裡，也可供手動輸入想要備份資料的位置。並 11 1278747 程=行完成之後’移除電腦中的虛儲存裝置 舰用。保^料儲存單元的週邊裝置部分供電腦操 请麥閱第四圖係為本發明資料保護的操作流程圖。次 料保護程式執行時首先判斷保護密碼是否已建立（§4貝 右判斷結果為否則提示使用者設定保護密碼（S403);對於 初^使用可攜式設備的使用者而言，資料保護程式係提供 μ/γ作晝面以引導使用者輸入密碼。而當已完成保護密碼 ，定，係要求使用者輸入一密碼（S405 );並判斷輸入^碼 疋否正確（S407)’判斷方式係將輸入的密碼與所設定的保 護密碼作比對；而當判斷結果為是則使用者可以取得可攜 =設備的使用權（S4H)。而若判斷結果為否則進一步判^ 輸入密碼錯誤次數是否超過3次（S4〇9);當判斷沒有則回 到步驟（S405)繼續執行；而當判斷結果為有則使用者無 法取得可攜式設備的使用權CS413)，同時結束可攜式設備 的操作流程。 冏口又 請參閱第五圖係為本發明資料備份的操作流程圖。當 ^用者已輸人正確的密碼’㈣得可攜式設備的使用權二 4 ，備份程式首先判斷備份資料來源位置是否已建立 (S501);備份資料來源位置可以是電腦中特定的 錄=此可㈣針时魏或重錢資料作備份即可了而 及到相對不重要或不常變動的資料備份。而當判斷 :否％則要求使用者建立備份⑽來源位置（s5q3)d之後 備=式即可在備份#料來源位置已建立的情況下，而進 位置所指定，自動備份至可攜式 、貝〆諸存單元13，而在貝料備份過程中也可以結 12 1278747 合加密及/或壓縮的資料處理，以提高備份資料的安全性或 是減少佔用資料的空間。 綜上所述，本發明提供的可攜式設備具有下述特點， 當連接於電腦使用時，係可以自動完成驅動程式的安裝， 而毋須人為操控’且驅動程式安襄完成在電腦後’可自動 執行資料備份的動作，將電腦的資料自動備份到可攜式設 備内。此外考量到可攜式設備資料儲存的安全性，當要使 用可攜式設備時，在其安裝過程中結合有密碼保護機制， 只有合法的使用者才能取得可攜式設備的使用權。 職是，本發明碟能藉上述所揭露之技術，提供一種迥 然不同於習知者的設計，堪能提高整體之使用價值，又其 申請前未見於刊物或公開使用，誠已符合發明專利之要 件，爰依法提出發明專利申請。 惟，上述所揭露之圖式、說明，僅為本發明之實施例 而已，凡精于此項技藝者當可依據上述之說明作其他種種 之改良，而這些改變仍屬於本發明之發明精神及以下所界 定之專利範圍中。 【圖式簡單說明】 第一圖係為本發明較佳實施例的系統架構圖； 第二圖係為本發明程式儲存單元的示意圖； 第三A〜B圖係為本發明的操作流程圖； 第四圖係為本發明資料保護的操作流程圖；以及 第五圖係為本發明資料備份的操作流程圖。 13 1278747 【主要元件符號說明】 11可攜式設備 11控制單元 12程式儲存單元 13資料儲存單元 14介面電路 20電腦 21 USB轉換單元 22 主機作業系統a - program storage unit and - (4) storage unit for storing portable devices for installation in a computer; t = 7L units for computer storage of data; (b) when the data can be stored, Receiving an inquiry sent from the computer 'D is connected to the computer. The portable domain has a program storage unit. 4 When the monthly package can execute the automatic execution function, the 'U electric execution program is started; (e) the program storage unit is installed. The automatic brain of several computers: The computer can be used by the driver to identify the data 'f program' in the electric program storage unit towel-recording type, =, (f) the source data of the backup data to be backed up is the program setting The data stored in the location of the source of the backup data to the data cast = one U) In order to solve the Jlii technical problem, according to the present invention - a portable device, including: for the circuit and the circuit; - data storage unit; - program storage j connected to the execution program, a driver and a backup program, including the software for automatic execution on the computer, the driver can be; second, automatic execution: portable device, backup program for backup computer 杳 = brain f And the control unit controls the data storage unit and the greedy, stores the communication wheel' and the program storage unit and the interface unit and the surface unit; therefore, when the interface circuit is connected to the computer, the connection between the protections - Out-inquiring signal, and responding to the signal to receive electricity in the morning.) Indicates that the portable device is 278747. There is a program storage unit and the type 5, and the driver is automatically installed.]: The data of the brain backup computer is automatically restored to the data storage program. A portable device that can carry 3 inches and its automatic backup method. , by, storage unit: electricity is known as a virtual storage! The storage unit of the storage type 1 is stored; the data storage unit of the lean material storage is in the r to allow the portable device to sing, and the self-storage material riding equipment is the raw material storage type ^ Ways] Detailed description and drawings,::=, please be spicy when you can get this - deep and the purpose, characteristics and characteristics of the 4, the test to the present: = round only provides the reference, the is - data storage to the second Available with computer 2. Connections 70 U early, this program storage device 1G has a program stored in the computer 20 when the implementation of the security device 10 for the portable device 10 connected storage unit 12 to store the right, the program. As shown in the second figure, the program and data protection program, and the formula, the ‘the crane, the backup program. In this embodiment, the program storage= consists of instructions or code. In the flash type § Remembrance, the electronic smear is provided with non-volatile memory (such as fast-dissolving money) computer 20 for data reading / 1278747 storage medium' and in computer 2G is non-volatile recording type备备10, 圭1 yst〇ragedevice), so when can be #细虚物:二]? 2012, the operating system "赛电脑: ° reading program storage unit 1 two: one part" and can come For the computer 20 to store data, use J枓 to store the early 兀13, mainly used as the Zhaobian storage device, such as the external (cut) (four) storage unit 13 隹 can also be the end of the type 1 (External hard coffee), storage unit 12 The stored storage medium, and the program storage core 2 air unit 11 is a communication transmission between the control unit storage unit 11 and the surface circuit 14 : a special application integrated body; a road? (PLD, CPLD, FPGA, etc.). #二式避电. It is plug-and-play for Plug-in transmission specifications (Plug & Play). Also available for 10 can refer to the first picture, so when it is possible to sample η When the interface circuit u and (4) conversion: 妾 电脑 computer 20 heart 传输 pattern transmission information, so that the host = 2 through the cable and in accordance with the USB 10 via - The set of communication procedures, the system 22 can communicate with the portable device - step on the computer i. The internal security VI = the communication connection relationship between the type, and the drive % of the device 1G is automatically installed. The kiss scorpion early 12 series can provide a driver to the map. The material tree is transferred to the process N. The winter portable version of the portable case / 'port and 10 series can automatically back up the computer data 1278747 in the portable device l〇 internal data to be σ — first portable deviceΗ ) 连 threat 1 = = 13, when its operation mode is ··, and according to the circumference of the USB transmission wheel nf used to connect to the computer - query signal to the portable device i 〇? 疋曰 'host: industry system 2 2 issued those operational functions (lake). #知可设备10有式设备H) Received; Storage; 式: fl! will actively respond to the signal to inform = Storage early 70 12 and poor material storage list /, with the application of the bar 1G for portable devices = Qiao 3 () 5), to the real::: Respond to the news. This is the second part of the device, which is indicated by the second part. Therefore, when the computer 2 receives a message that can be j=Pheral device: the wide-range operating system 22 will program;;;: the virtual storage device & used to identify it as a usable capability. If it is known that the virtual storage I is used by the computer to operate the brain, the external device of the computer must be able to be powered after the computer can be positive; the driver must be installed, display, and let the host t brain After that, it is taken by a disk that can be recognized by a computer. ......4 22 can read the data in the virtual storage device. After the computer identification is completed, it can be portable (S 3 0 9). When #(四)=2 2 of the standard auto-execution function is enabled, the self-operating system 22 stored in the unit 12 is executed to execute the program storage execution program (S311); otherwise, the host operating system 10 1278747 22: the external peripheral installation is disconnected. Is there a driver (S317 is only 10 blocked), and it has been used as an external hard drive in the computer system. In this embodiment, the external host operating system 22 also determines that if the result of the determination is no, the _ side = ^ ^ driver (S3 (8), the driver can be provided to the host;; the result of the determination is yes = 糸The virtual storage device is obtained, and if it is, the next step is to continue. The f function is not turned on and the computer does not have an external peripheral installed. The use of the material to the λ ^ wheel drive ^ user * 卩 轮 含有 含有 含有 含有 含有 含有 含有 含有 含有 含有 含有 卩 卩 卩 卩 卩 卩 卩 卩 卩 卩 卩After the driver is installed in the computer, the computer can establish the connection relationship between the peripheral device and the driver in the computer (S321). When the peripheral device can be used normally by the computer, it is further determined whether the peripheral device has been initialized (S323)' That is, whether the external hard disk is formatted or not. If it is determined otherwise, the initial operation of formatting is performed on the peripheral device (S325). When the peripheral device is initialized, the data protection program is started (S32). 7), the detailed operation process of this step is as shown in the fourth figure, the data protection program of this embodiment provides the verification of the password input to determine whether the user has the right to use the portable device. After the identity check is correct, the backup program is started (S329). The detailed operation process of this step is as shown in the fifth figure. The backup program in this embodiment automatically backs up the data to be backed up in the computer to the peripheral device. For manual input of the location where you want to back up the data. And 11 1278747 After the line is completed, 'Remove the virtual storage device in the computer. The peripheral device part of the storage unit is for the computer to operate. The fourth picture is The operation flow chart of the data protection of the invention. When the secondary protection program is executed, it is first determined whether the protection password has been established (§4, the result of the judgment is otherwise, the user is prompted to set the protection password (S403); for the initial use of the portable device) For the user, the data protection program provides μ/γ for guiding the user to enter the password. When the password is completed, the system requires it. Enter a password (S405); and determine whether the input code is correct (S407). The judgment mode compares the entered password with the set protection password; and when the judgment result is yes, the user can obtain the portable = the right to use the device (S4H), and if the result of the judgment is otherwise, further determine whether the number of input password errors exceeds 3 times (S4〇9); if not, return to step (S405) to continue execution; and when the judgment result is In some cases, the user cannot obtain the right to use the portable device (CS413), and at the same time, the operation process of the portable device is ended. Please refer to the fifth figure for the operation flowchart of the data backup of the present invention. Enter the correct password '(4) to use the portable device 2 4, the backup program first determines whether the backup data source location has been established (S501); the backup data source location can be a specific record in the computer = this (four) needle Wei or heavy money data can be backed up to a relatively unimportant or infrequently changed data backup. When judging: No% requires the user to establish a backup (10) source location (s5q3) d after the backup = formula can be in the backup # material source location has been established, and the location specified, automatically backed up to portable, The Bessie storage unit 13 can also process 12 1278747 encrypted and/or compressed data during the backup process to improve the security of the backup data or reduce the space occupied by the data. In summary, the portable device provided by the present invention has the following features: when connected to a computer, the driver can be automatically installed without manual control and the driver is installed behind the computer. Automatically perform data backup and automatically back up the data of the computer to the portable device. In addition, considering the security of portable device data storage, when a portable device is to be used, a password protection mechanism is incorporated in the installation process, and only a legitimate user can obtain the right to use the portable device. The present invention is capable of providing a design that is quite different from the prior art by the above-disclosed technology, and can improve the overall use value, and is not found in the publication or public use before the application, and has already met the requirements of the invention patent. , 提出 filed an invention patent application in accordance with the law. However, the drawings and descriptions disclosed above are only examples of the present invention, and those skilled in the art can make various other modifications according to the above description, and these changes still belong to the inventive spirit of the present invention. The scope of the patents defined below. BRIEF DESCRIPTION OF THE DRAWINGS The first diagram is a system architecture diagram of a preferred embodiment of the present invention; the second diagram is a schematic diagram of a program storage unit of the present invention; and the third A to B diagrams are flowcharts of operations of the present invention; The fourth figure is an operation flowchart of the data protection of the present invention; and the fifth figure is an operation flowchart of the data backup of the present invention. 13 1278747 [Key component symbol description] 11 Portable device 11 Control unit 12 Program storage unit 13 Data storage unit 14 Interface circuit 20 Computer 21 USB conversion unit 22 Host operating system