200917093 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種人機介面(human interface)切換裝 置（switching device)。 【先前技術】 第一圖為一種電腦系統架構之範例示意圖。此電腦系統 基本架構是包含由一主機（main frame)10、監視器 (monitor)n、以及一輸入單元12。輸入單元12，例如滑鼠 (mouse)121、鍵盤(keyboard)122 等。 此電腦系統中，主機10可分別連接於監視器u以及輸 入單元12。例如，由主機10接收來自輸入單元12的輸入 訊號，經過處理後，顯示結果於監視器u上。此輸入資訊， 如文字、圖像或程式運算等，皆需要經由主機1〇後，才能 夠出現於監視1 11。當主機！〇處於關機狀態時，監視器丄） 沒有提供任何功用，此時，監視器11可能形同-種資源的 浪費。 【發明内容】 應用於一顯示單元、一圖 本發明之人機介面切換裝置可 200917093 像§亿5虎單元(graphic signal unit)、以及-輸人單元，此 人機介面切換裝置分別連接於此圖像訊號單元、此顯示單 元、以及此輸入單元，以顯示由此圖像訊號單元輸出的一圖 像訊號，並接收來自此輸入單元的一輸入訊號。 此人機介面切換裝置可包含一輸入切換單元α叩ut switching unit)、一多媒體單元、以及一功能應用單元。 此輸入切換單元分別連接於此輸入單元、此功能應用單元以 及此圖像Λ號單元。此多媒體單元(muitimedia unit)連接 於此圖像訊號單元、此功能應用單元與此顯示單元，其匯集 並處理此圖像訊號與一應用圖像訊號後，輸出至此顯示單 元。此功此應用單元（functi〇nai appHcati〇n unit)連結 此輸入切換單元與此多媒體單元，可接受輸入單元的操作並 產生此應用圖像訊號。 當輸入單元連接至輸入切換單元時’此輸入切換單元可 以用類比模式(analogical mode)或數位模式（digital mode) 來切換此輸入訊號，並指定此輸入訊號應連結至此功能應用 單元或是圖像訊號單元。當輸入訊號連結至此圖像訊號單元 時’此圖像訊號單元會處理此輸入訊號，並輸出相對應的圖 像訊號’透過多媒體單元後，顯示於顯示單元。當輸入訊號 連結至此功能應用單元時，輸入訊號操作此功能應用單元， 7 200917093 產生相對應的此應賴像職，㈣聰單元處理，再顯示 於顯示單元。 兹配合下_示、實施例之詳細綱及㈣專利範圍， 將上述及本發明之其他目的與優點詳述於後。 【實施方式】 請同時參考第二a與第二b圖，第二a圖為將本發明應 用於-系統環境的示意圖、第二b圖為根據本發明的一個架 構不意圖。第二a圖中，本發明之人機介面切換裝置別分 別連於-輸人單元20、-ϋ像峨單元3()、以及—顯示單 元40。人機介面切換裝置5〇將圖像訊號單开』輸出的一 圖像訊號30a顯示於顯示單元4〇，並接收來自輸入單元2〇 的-輸入訊號20a或是將輸入訊號2〇a再傳送給圖像訊號單 元30。輸入單元20可以是有線或無線的滑鼠 '鍵盤、手寫 板(handwriting board)、搖桿（joystick)、觸控板(t〇uch200917093 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a human interface switching device. [Prior Art] The first figure is a schematic diagram of an example of a computer system architecture. The basic architecture of the computer system is comprised of a main frame 10, a monitor n, and an input unit 12. The input unit 12 is, for example, a mouse 121, a keyboard 122, and the like. In this computer system, the host 10 can be connected to the monitor u and the input unit 12, respectively. For example, the input signal from the input unit 12 is received by the host 10, and after processing, the result is displayed on the monitor u. This input information, such as text, image or program calculations, needs to be passed through the host 1 before it can appear in the monitor 1 11 . When the host! When the 〇 is in the off state, the monitor 丄) does not provide any function. At this time, the monitor 11 may be a waste of resources. SUMMARY OF THE INVENTION Applicable to a display unit, a human-machine interface switching device of the present invention can be used in 200917093, such as a graphic signal unit and an input unit, and the human-machine interface switching device is respectively connected thereto. The image signal unit, the display unit, and the input unit display an image signal output by the image signal unit and receive an input signal from the input unit. The human interface switching device can include an input switching unit, a multimedia unit, and a function application unit. The input switching unit is respectively connected to the input unit, the function application unit, and the image registration unit. The muitimedia unit is connected to the image signal unit, the function application unit and the display unit, and collects and processes the image signal and an application image signal, and outputs the image signal to the display unit. The application unit (functi〇nai appHcati〇n unit) links the input switching unit and the multimedia unit, and accepts the operation of the input unit and generates the application image signal. When the input unit is connected to the input switching unit, the input switching unit can switch the input signal in an analog mode or a digital mode, and specify that the input signal should be connected to the function application unit or image. Signal unit. When the input signal is connected to the image signal unit, the image signal unit processes the input signal and outputs a corresponding image signal, which is displayed on the display unit after passing through the multimedia unit. When the input signal is connected to the function application unit, the input signal operates the function application unit, 7 200917093 to generate the corresponding image, and (4) the Cong unit processing, and then displayed on the display unit. The above and other objects and advantages of the present invention will be described in detail below with reference to the detailed description of the embodiments and the scope of the invention. [Embodiment] Please refer to the second a and second b diagrams at the same time, the second a diagram is a schematic diagram of the application of the present invention to the system environment, and the second diagram is a schematic diagram of the architecture according to the present invention. In the second diagram, the human-machine interface switching device of the present invention is connected to the input unit 20, the image unit 3 (), and the display unit 40, respectively. The human-machine interface switching device 5 displays an image signal 30a outputted by the image signal on the display unit 4A, and receives the input signal 20a from the input unit 2〇 or transmits the input signal 2〇a. The image signal unit 30 is given. The input unit 20 may be a wired or wireless mouse 'keyboard, handwriting board, joystick, touchpad (t〇uch)
Pad)、遙控器等；本實施例以兩個輸人裝置，有線的· 滑鼠21與USB鍵盤22為例。圖像訊號單元30具有處理文 字或圖像等功能，例如是主機板（main board or motherboard)、微處理器（micro pr〇cess〇r)、硬碟（hard dlSk)、電源供應器（Power supply)等組合；本實施例以桌 上i個人琶細主機為例。顯示單元4〇，如crt顯示器或lcd 200917093 顯示器等，_ 以力此為顯示圖像訊號單元30經此人機介面切 換#置5G處理後之文字、圖像或運算結果。 機"面切換裝置50包含一輸入切換單元5卜一功能 應用單元52、以及一多媒體單元53，其中功能應用單元52 刀別連接於輪人切換單元51與多媒體單元53，可經由輸入 刀換單το 51，接受輸入單元2〇的操作並產生一應用圖像訊 號52a傳送到多媒體單元53。輸入切換單元51分別連接至 輸入裝置20 '功能制單元52錢像訊號單元％，可將輸 入裝置20切換到功能應用單元52或圖像訊號單元3〇。多 媒體單元53分別連接於圖像訊號單元3G、功能應用單元52 與顯不單元40 ’匯集並處理圖像訊號施及應用圖像訊號 52a後，輸出至此顯示單元。 第三圖是多媒體單元與功能應用單元之一個範例示意 圖，並與本發明之某些實施例一致。請參考第三圖，多媒體 單元53可包含一圖像處理單元531與一圖像產生單元532。 圖像處理單元531接受圖像訊號單元30傳送之圖像訊號 30a ’依序經過一圖像訊號介面（graphic signai interface)5311 、一高效能縮放引擎（scaling 61^116)5312、一後處理器（卩03士口1'006331呢)5313、一視頻 切換器（video switch)5314、一視頻疊加器（video 200917093 overlay)5317、及一顯示介面（display interface)5315 處 理後’示於顯示單元40。圖像產生單元532可包含一第一 視頻產生器（video generator)5321、以及一第二視頻產生 器5322，接受功能應用單元52的應用圖像訊號52a產生相 對應的圖像。第一視頻產生器5321連接於圖像處理單元531 的視頻切換器5314，並在一圖像切換訊號52b為開啟狀態 下，可與圖像訊號30a切換；第二視頻產生器5322連接於 圖像處理單元531的視頻疊加器5317，並在圖像切換訊號 52b為開啟狀態下，可與視頻切換器5314的輸出圖像堆疊， 處理後的晝面經由顯示介面5315示於顯示單元4〇。本實施 例中’第-視頻產生胃5321使用於產生動態的圖像；第二 視頻產生态5322使用於產生靜態的圖像，如一螢幕顯示 (on-screen-display，0SD)產生器。 功能應用單元52可包含一系統控制器（System C〇ntr〇Uer)521、一人機操作介面522、—核心快閃記憶體 (core flash)523、以及一功能元件524，系統控制器521 刀別連接於人機域介面522、核讀閃記憶體523、以及 功能元件524。人機操作介面522可為-開關元件設置於人 機"面切換衣置3〇 ’作為接受使用者的輪入，其包括複數 登幕顯示控制鍵5221與—工作模式切換鍵5222。螢幕顯示 控制鍵5221與工作模式娜鍵挪可分別操作以及切換人 10 200917093 機介面切換裝置50。核心快閃記523為—唯讀記憶體 (NOR Flash)，其中存放人機操作介面522運作所需的知體、 複數個應用程式、以及產生應用圖像訊號52a的圖形與文字 資料。功能元件524包括具有不同功用之功能應用元件 524卜 系統控制器521可根據錄顯示控繼5221的觸發及 輸入單元20的輸入訊號20a，執財子於核心快閃記憶體呦 中對應的勤體與程式，並由核心快閃記憶體523中取出此操 作的應用圖像訊號52a輸出至多媒體單元53之榮幕顯示產 生益、5322 ’使產生對應的螢幕顯示功能選單a(圖中未標示） 輸出至顯轉位40，讓使_獨絲齡魏選單a中 的選項進行選取或設定參數。下列範例為系統控制器521不 同功能的說明： 系統控制器521 I-個微控制單元a— c〇ntrci 偷），功能元件524包含-供存放電話薄及記事本等應用 功能的一記錄資料的NAND型快閃記憶體，—用以計時以提 供時間資訊的即時控制器RTC電路’ 及用以感測環境資 訊，如’溫度、濕度、煙霧或有毒氣體的—或多個環境感測 器。 200917093 系統控制器521可根據螢幕顯示功能選單A中的選項， 藉由核。陕閃5己憶體523存放的上述功能之應用程式、圖 形、與文字資料，並存取功能元件524的各項數據，產生並 輸出相對應的應用圖像訊號52a至多媒體單元53之螢幕顯 不產生器峨2，顯示棚示單元4Q，便可讓此人機介面切 換襄置5G具備電轉、記轉、⑽、時鐘、溫度顯示及 濕度顯示等功能。 系統控制器521也可以是較強運算能力的微控制單元， 例如ARM或MIPS，並搭配複雜的功能元件524。例如，功能 几件524可以是一具網路的數據通訊電路如汕乩m〇dem或 是Cable m〇dem，視頻產生器5321可以是一種2D圖形加速 電路，核心快閃記憶體523存放的驅動上述裝置之程式、圖 形、與文字資料’以及一網路劉覽應用程式，系統控制器 521便可配合輪入單元2〇與核心快閃記憶體523内的應用 軔體產生應用圖像訊號52a至視頻產生器5321，顯示於顯 示單元40。如此，人機介面切換裝置5〇就可以具有網路流 覽（internet browser)單機功能。在相同的工作原理下，功 能元件524可以是讀卡機或是載有遊戲的非揮發性記憶 體，視頻產生器5321可以是2D或是3D圖形加速電路，系 統控制态521配合輸入單元20與核心快閃記憶體523内相 對應的應用軔體，人機介面切換裝置50就可以具有遊戲機 200917093 的功能。功能元件524也可以是讀卡機、硬碟機、或是光碟 機等儲存媒介，視頻產生器5321可以是JPEG解壓縮的軟硬 體’人機介面切換裝置50就具備數位相框的功能。此視頻 產生器5321可以是MPEG卜MPEG2/MPEG4解壓縮的軟硬體， 人接介面切換裝置50就是一種多媒體播放器。功能元件524 為攝像頭與硬碟機，視頻產生器5321為JPEG/MPEG1、 MPEG2/MPEG4解壓縮的軟硬體時，人機介面切換裝置5〇就 可以具有拍照、攝影、或是錄影等功能。舉凡上述應用，在 热悉該項應用技術的配合之下，皆可運用於本發明中，並行 不悖。 系統控制器521也可根據人機操作介面522的工作模式 切換鍵5222的操作，執行存於核心記憶體523中對應的韌 體刀別產生圖像切換訊號52b與一輸入切換訊號52c以設 疋夕媒體單元53與輪入切換單元51的工作模式◦此人機介 面切換裝置50(圖中無標示）至少能夠產生下列四種的工作 模式： 1.工作模式一：設定圖像切換訊號52b開啟應用圖像 訊號52a，傳送到圖像產生單元532。產生相對應的 應用圖像後，再傳送到視頻切換器5314與視頻疊加 |§ 5317與圖像訊號30a切換、堆疊，最後將圖像顯 示在顯示單元40。並且，輸入切換訊號52c設定為 200917093 €輯1 (logic 1)邏輯i電位可以代表高電位 或低電位，控制輸入切換單元51使輸入裝置卻控 制人機介面切換裴置50。 2·工作核式設定圖像切換訊號52b開啟應用圖像 « 52a ’傳送到圖像產生單元碰。產生相對應的 應用圖像後，再傳送到視頻切換器5314與視頻叠加 器5317與圖像訊號3〇a切換、堆疊，最後將圖像顯 示在顯示單元4G。並且，輸人娜訊號咖設定為 一邏輯0 - (l〇gic 〇)邏輯〇電位可以代表低電位 或尚電位’控制輸入切換單元51使輸入裝置20控 制圖像訊號單元3〇。 3. 工作模式三：設定圖像切換訊號52b關閉圖像產生 單元532 ’使應用圖像訊號52a不顯示在顯示單元 40 °此時’圖像訊號單元3〇傳送來的圖像訊號3〇a 經由圖像處理單元531的處理後顯示在顯示單元 40。並且’輸入切換訊號52c設定為邏輯、1 /，控 制輸入切換單元51使輸入裝置20控制人機介面切 換裝置50。 4. 工作模式四：設定圖像切換訊號52b關閉圖像產生 單元532，使應用圖像訊號52a不顯示在顯示單元 40。此時，圖像訊號單元30傳送來的圖像訊號30a 經由圖像處理單元531的處理後顯示在顯示單元 200917093 40。並且，輸入切換訊號52c設定為邏輯、(Γ，控 制輸入切換單元51使輸入裝置20控制 圖像訊3虎早 元30。 輸入切換單凡可用多種方式來實現人機介面切換功 能。第四®是輸人切換單元_比模式來實現切換功能的一 個範例示意圖，並且與本發明之某些實施例一致。請參考第 四圖，輸入切換單元51包含一通用串列匯流排(Universal Serial Bus，USB)切換電路(switch circuit)5U , 一第一 通用串舰流排主控制器⑽B h〇st⑽tr〇Uer) 512或是 通用串列匯流排0TG控制器（USB 0TG c〇ntr〇Uer)。本實 施例以第一通用串列匯流排主控制器以及一多埠通用串列 匯流排集線器（multiple-port USB hub) 513為一實施範例 說明。通用_列匯流排切換電路511可包含一人機介面連接 璋(HID P〇rt)5111、一主連接蜂(H〇st p〇rt)5112、以及一 集線器連接痒(Hubport)5113。通用串列匯流排集線器513 的一上行（upstream)埠連接到圖像訊號單元3〇，下行 (downstream)蟑連接到集線器連接埠5113。第一通用串列 匯流排主控制器512的一端接到主連接埠5112，另一端接 到功tb應用單元52的系統控制器521。當通用串列匯流排 滑鼠21與通用_列匯流排鍵盤22分別連結至人機介面連接 埠5111時’功能應用單元52的系統控制器521傳回—輸入 15 200917093 切換訊號52c ’來指定通用串列匯流排滑鼠21與通用串列 匯流排鍵盤22為切換至集線器連接埠5113連結通用串列匯 流排集線器513或是切換至主連接埠51i2連接第一通用串 列匯流排主控制器512。 當輸入切換訊號52c由邏輯、〇 /轉為邏輯、1 -時，人 機介面連接埠51Π便會連接至主連接埠5112，通用串列匯 流排滑鼠21及通用串列匯流排鍵盤22便依序連接人機介面 連接埠5111、主連接埠5112、第一通用争列匯流排主控制 态512與系統控制器521。系統控制器521啟動第一通用串 列匯流排主控制器512來進行通用串列匯流排的初始化，經 由-認證流程後，建立與通財舰流排滑鼠21及通用串 列匯流排鍵盤22的連、结，並由此第—通用_列匯流排主控 制器512來管理通财列匯流排滑鼠21與通用串列匯流排 鍵盤22。系統控制器521自第一通用串列匯流排主控制器 512取得通用串列匯流排滑"與通用串列匯流排鍵盤μ 的輸入訊號，執行其内部-滑鼠解碼器5211與一鍵盤解碼 器5212等初體，並顯示與執行通用㈣匯流排滑鼠2ι與通 用串列匯流排鍵盤22的動作。 當輸入切換5虎52c由邏輯、1 -轉為邏輯丫時，人 機介面連接埠5m連接至集線器連鱗5113，通用串列匯 200917093 流排滑鼠21及通用串列匯流排鍵盤22便依序連接人機介面 連接璋5111、集線器連接埠5113、到達通用串列匯流排集 線器513的下行埠。系統控制器521啟動通用串列匯流排集 線器513，使通用串列匯流排集線器513的下行埠連接到通 用串列匯流排集線器513的上行埠後連接到圖像訊號單元 30。圖像訊號單元3G内的-第二通用串舰流排主控制器 31開始進行通財舰流初始化，經由—認證流程 後’建立與通料舰流排滑鼠21及通用_舰流排鍵盤 22的連結，並由圖像訊號單元3〇的第二通用串列匯流排主 控制器31來管理通料舰流排滑鼠21與咖串列匯流排 鍵盤22。 第五圖為工作模式切換的一個範例示意圖。工作模式一 設定為人機介面切換裝置5Q於_缝置狀驗，多媒體 單元53接受來自功能應用單元52之應用圖像訊號52a，且 與圖像訊號3Ga堆疊，並使輸入切換單元51將輸入單元2〇 的輸入减2Ga送至功能應用單元52的系統控制器奶。 功能應用單元52使多媒體單元53的圖像產生單元532 產生-螢_示舰料A顯科齡_ 4g，如計算機 A卜幣制換算A2、度量單位換算A3等，當人機操作介面奶 的勞幕齡控_5221或輪人單元2Q縣螢幕顯示功能選 朴系統控制器521執行對應該應用功能選項的應用程式。 200917093 一鼠21難22透過輪均換單元51連結至系统 =521時，_滑鼠21紐座標訊號，其經 …f控制器521中預設的滑鼠解碼器5211解碼後送給多 1體:兀53，使在顯示單元4G上產生對應滑鼠21移動的 游心211 “吏用者如作游標211點選螢幕顯示功能選單 A的計算機A1時，系統控制器521由核心快閃記憶體汹 中取出產生,t异機圖像的圖形和文字送給多雜單元犯的 圖像產生單元532，使在顯示單元4()上顯示—虛擬計算機 做用麵作’使用者可以滑鼠21點選虛擬計算機上的數 字^運算符號或峨盤22直接輸人數字及運算符號來進行 計算。 當功能應用單元52的功能元件524包含_型快閃記 憶體、即時控制器電路、以及—或多個環境感·，所以人 機介面切換裝置50可提供時鐘A4、電話薄A5、記事本A6、 以及環境感測A7等功能。為此，功能顧單元52中之核心 快閃記憶體523同時存放時鐘A4、電話薄A5、記事本邡 以及環境感測A7顯示等應用程式，且系統控制器52ι可存 取功能元件524之應用功能相關資料。 當工作模式-時’系統控制器521根據人機操作介面 522的螢幕顯示控制鍵5221與輸入單元21、22的輸入3， 20a ’使多媒體單元53赴螢細示捕選單A顯示在該顯 示單元40 ’螢幕功能選項a可以是時鐘A4、電話淨A5 2 200917093 事本A6、以及環境感測A7，如溫度、濕度等。當該時鐘M 被選取而產生輸入訊號給系統控制器521時，系統控制器 521由即時控制器電路取得時間資訊並送給圖像產生單元 532 ’使顯示單元4〇產生一時間顯示區塊將時間顯示出來。 當功能應用單元52根據人機操作介面522的螢幕顯示 控制鍵5221與輸入單元2〇所選擇執行螢幕顯示功能選單A 中的電話 '薄A5 ’ _D型快閃記憶體中與電話薄A5相關的記 錄貧料被系統控器521讀取並經多媒體單元53處理後輸出 至顯不單元40。因此，顯示單元40上會顯示一電話薄A5 供使用者查閱先前記錄的電話資訊，如上一頁、下一頁的選 項’或使用者亦可點選電話簿上的新增選項 ，並以鍵盤22 鍵入新增的電話資訊，鍵盤22的輸人訊號會麵系統控制 器521内建的鍵盤解碼器5212解碼後再輸出給圖像產生單 元532並且存入NAND型快閃記憶體中。使用者只要以滑鼠 21 .::’έ選電δ舌簿上關閉選項，即可回到螢幕顯示功能選單a 做其它功能的選擇。 當螢幕顯示功能選單A中的環境感測A7被選取時，如 溫度產生輪入訊號給系統控制器521時，系統控制器521取 得環境感測A7所對應的環境感·(如，溫度感測器）所測 传的％境感測資訊（即溫度）並傳送至多媒體單元53，並與 顯示單元40上顯示即時溫度。同樣地，纟它諸如環境濕度 200917093 感測功能亦可以如同上述方式實現。 當人機介面切換裝置5〇(圖中無標示）處於工作模式一， 且系統控制器521判斷使用者將游標211移到顯示單元 上（非螢幕顯示功能選單A的區域)並做點選時，系統控制器 521判定使用者想在保留目前執行的應用功能的情況下將 輸入裝置2卜22 &輸入訊號2〇a送至圖像訊號源單元3〇。 因此’功赫用單元52便輸出圖像切換訊號52b與輪入切 換訊號52c，將人機介面切換裝置5〇切換至工作模式二， 使輸入切換單tl 51將輸入單元21、22透過通用串列匯流排 集線!§' 32(圖中無標示）連結至圖像訊號單元3〇，讓輸入單 元21、22的輸入訊號透過USB集線器32送給圖像訊號單元 30。由於此時圖像訊號3〇a與應用圖像訊號52a的圖像在顯 不單π 40以堆疊方式顯示，所以在使用者透過輸入單元 21 ' 22輸入指令控制圖像訊號單元3〇的同時，原先在工作 模式一下開啟或正在執行的應用功能則仍然持續而不會被 關閉。 當人機介面切換裝置50處於工作模式一時，使用者以 螢幕顯示控制鍵5221或輸入單元21、22點選螢幕顯示功能 選單Α的模式切換Α8，系統控制器521會輸出圖像切換訊 號52b與輸入切換訊號52C，將人機介面切換裝置5〇切換 20 200917093 至工作模式四的運作狀態。此時，多媒體單元53只接受來 自圖像訊號單元30的圖像訊號30a，經過處理後顯示在顯 f單元4G。且輸人切換單元51將輸入單元2卜22的輸入 ‘虎20a达至圖像訊號單元3〇，因此當使用者操作輸入單 元2卜22時，雖然輸入單元2卜22是連接在人機介面切換 裝置50上’但貫際上是將輸入訊號送至圖像訊號單元加。 最後，當人機介面切換裝置50運作於工作模式二或工 作模式四時’使用者想要再操作螢幕顯示功能選單A中的選 項時’只要按下人機操作介面522上的工作模式切換鍵獅 便可切換至工作模式一。 第六圖是輸入切換單元以數位模式來實現切換功能_ 個範例示意圖，並且與本發明之某些實施例—致。一個4蜂 通用串列匯流排集線器6包含—上行通料順流排收發 器（Transceiver)61與4個下行通用串列匯流排收發器阳， 其分別連接至圖像訊號單元3〇與輸入單元2〇。請參考第六 圖’當系統控制器521發出的輸入切換訊號52c要求將輸入 單元20連接到圖像訊號單元30時，系統控制器521藉由其 執行核心快閃記憶體523的集線器控制器（Hub Contioller)5213的軔體，控制上行通用串列匯流排收發器 61 第串列"面引擎（Serial Interface Engine， SIE)63、集線器中繼器（Hub Repeater)64、傳輸轉譯器 200917093 (Transaction Translator)65、路徑邏輯（Routing Logic)66 以及四個4個下行通用串列匯流排收發器62，完成一個通 用串列匯流排集線器的功能。當系統控制器521發出的輸入 切換訊號52c要求將輸入單元2〇連接到系統控制器521 時，系統控制器521藉由其執行核心快閃記憶體523的通用 串列匯流排主控制器（USB Host Controller)5214軔體，經 由一第二串列介面引擎67、路徑邏輯66以及4個下行通用 串列匯流排收發器62在一認證流程之後，债測得四個4個 下行的輸入裝置類別。然後’系統控制器521控制路徑邏輯 66，將其中輸入訊號2〇a送至第二_列介面引擎耵，將其 他的輸入裝置連接到集線器功能。 第七圖是多媒體單元與功能應用單元的另一範例示意 圖，並與本發明之某些實施例一致。請參考第七圖，圖像產 生單元532包含一第一視頻產生器5321、一第二視頻產生 态5322、以及第一視頻數位類比訊號轉換器5323a與第二 視頻數位類比訊號5323b。本範例中之圖像處理單元7包含 一視頻切換器5314、一顯示介面5315、一前置放大器 (pre-amplifier)71以及—視頻疊加器5317。前置放大器 71的一端連結至—圖像訊號單元3〇的圖像訊號3(^ ,另一 端依序連接至視頻切換器5314、視頻疊加器5317、顯示介 面5315、以及一顯示單元4〇。第一視頻產生器5321與第二 200917093 視頻產生器5322皆與功能應用單元52之系統控制器521 連接’並接收應用圖像訊號52a ’且分別連接一第一視頻數 位類比訊號轉換器5323a與一第二視頻數位類比訊號轉換 器5323b。第一視頻數位類比訊號轉換器產生器5323a連接 於視頻切換器5314;第二視頻數位類比訊號產生器5323b 則連接於視頻疊加器5317。視頻產生器5321處理來自功 成應用單元52的應用圖像訊號52a，經第一視頻數位類比 訊號轉換器5323a後，被傳送至視頻切換器5314與圖像訊 號30a切換，然後再被傳送至視頻疊加器5317 ;螢幕顯示 產生裔5322處理應用圖像訊號52a，經第二視頻數位類比 訊號轉換器5323b調整後，被傳送至視頻疊加器5317，與 視頻切換器5314傳送來的圖像訊號堆疊，並透過顯示介面 5315顯示在顯示裝置40上。系統控制器521之—圖像切換 訊號52b分別傳送至視頻切換器5314與視頻疊加器5317， 可開啟視頻切換器5314的圖像切換功能與視頻疊加器mi? 的圖像堆疊功能。 惟’以上所述者，僅為本發明之鱗實補而已，當不 能以此限林發明實施之制。即大紐本發”請專利範 圍所作之均等變化與修飾，皆應仍屬本發明專利涵蓋之範圍 内0 23 200917093 【圖式簡單說明】 第一圖為一種電腦系統架構之範例示意圖。 第二a圖為將本發明應用於一系統環境的示意圖。 第二b圖為根據本發明的一個架構示意圖。 第三圖是多媒體單元與功能應用單元之一個範例示意 圖，並與本發明之某些實施例一致。 第四圖是輸入切換單元以類比模式來實現切換功能的 一個範例示意圖。 第五圖為工作模式切換的一個範例示意圖。 第六圖是輸入切換單元以數位模式來實現切換功能之 一範例示意圖，並與本發明之某些實施例一致。 第七圖是多媒體單元與功能應用單元的另一範例示意 圖，並與本發明之某些實施例一致。 【主要元件符號說明】 11監視器 122鍵盤 20a輸入訊號 211游標 10主機 12輸入單元 121滑鼠 20輸入單元 21通用·列匯流排滑鼠 24 200917093 22通用串列匯流排鍵盤 30圖像訊號單元 31第二通用串列匯流排 主控制器 40顯示單元 50人機介面切換裝置 51輸入切換單元 511通用串列匯流排切 換電路 5111人機介面連接埠 5113集線器連接埠 512第一通用串列匯流 排主控制器 513通用串列匯流排集 線器 52功能應用單元 52a應用圖像訊號 52c輸入切換訊號 521系統控制器 5211滑鼠解碼器 5213集線器控制器 30a圖像訊號 32多埠通用串列匯流 排集線器 5112主連接埠 52b圖像切換訊號 5212鍵盤解碼器 5214通用串列匯流排 25 200917093 522人機操作介面 5221螢幕顯示控制鍵 523核心快閃記憶體 524功能元件 53多媒體單元 531圖像處理單元 5311圖像訊號介面 5313後處理 5315顯示介面 532圖像產生單元 5321第一視頻產生器 5323a第一視頻數位類 比訊號產生器 6多埠通用串列匯流排 集線器 61上行通用串列匯流排 收發器 63第一串列介面引擎 65傳輸轉譯器 67第二串列介面引擎 主控制器 5222工作模式切換鍵 5241功能應用元件 5312高效能縮放引擎 5314視頻切換器 5317視頻疊加器 5322第二視頻產生器 5323b第二視頻數位 類比訊號產生器 62下行通用串列匯流 排收發器 64集線器中繼器 66路徑邏輯 26 200917093 7圖像處理單元 71前置放大器 A螢幕顯示功能選單 Μ計算機 Α2幣制換算 A3度量單位 Α4時鐘 Α5電話薄 Α6記事本 Α7環境感測 Α8模式切換 邏輯~厂 邏輯 27Pad), remote controller, etc.; this embodiment takes two input devices, a wired mouse 21 and a USB keyboard 22 as an example. The image signal unit 30 has functions such as processing a text or an image, such as a main board or motherboard, a microprocessor (micro pr〇cess〇r), a hard disk (hard dlSk), and a power supply (Power supply). And other combinations; this embodiment takes a desktop i-small host as an example. The display unit 4A, such as a crt display or an LCD 200917093 display, etc., is used to display the image signal unit 30 via the human interface to change the text, image or operation result after the 5G processing. The machine switching device 50 includes an input switching unit 5, a function application unit 52, and a multimedia unit 53, wherein the function application unit 52 is connected to the wheel switching unit 51 and the multimedia unit 53, and can be exchanged via the input tool. The single το 51 accepts the operation of the input unit 2〇 and generates an application image signal 52a for transmission to the multimedia unit 53. The input switching unit 51 is respectively connected to the input device 20' function unit 52, and the input device 20 can be switched to the function application unit 52 or the image signal unit 3A. The multi-media unit 53 is connected to the image signal unit 3G, the function application unit 52 and the display unit 40', respectively, and collects and processes the image signal to apply the image signal 52a, and outputs the image signal 52a to the display unit. The third figure is an exemplary illustration of a multimedia unit and a functional application unit and is consistent with certain embodiments of the present invention. Referring to the third figure, the multimedia unit 53 can include an image processing unit 531 and an image generating unit 532. The image processing unit 531 receives the image signal 30a transmitted by the image signal unit 30, and sequentially passes through a graphic signai interface 5311, a high performance scaling engine (scaling 61^116) 5112, and a post processor. (卩03士口1'006331) 5313, a video switch (video switch) 5314, a video adder (video 200917093 overlay) 5317, and a display interface 5315 after processing 'shown on the display unit 40 . The image generating unit 532 can include a first video generator 5321 and a second video generator 5322, and the application image signal 52a of the function receiving unit 52 is generated to generate a corresponding image. The first video generator 5321 is connected to the video switch 5314 of the image processing unit 531, and can be switched with the image signal 30a when the image switching signal 52b is on; the second video generator 5322 is connected to the image. The video adder 5317 of the processing unit 531 is stacked with the output image of the video switch 5314 in the open state of the image switching signal 52b, and the processed video is displayed on the display unit 4 via the display interface 5315. In this embodiment, the 'first-video generation stomach 5321 is used to generate a dynamic image; the second video generation state 5322 is used to generate a static image, such as an on-screen-display (OSD) generator. The function application unit 52 can include a system controller (System C〇ntr〇Uer) 521, a human machine operation interface 522, a core flash 523, and a function component 524, and the system controller 521 Connected to the human machine domain interface 522, the core read flash memory 523, and the functional component 524. The man-machine interface 522 may be a switch element disposed on the man-machine' face switcher 3' as a user-involved wheel that includes a plurality of on-screen display control keys 5221 and an operation mode switch key 5222. The screen display control key 5221 and the operation mode Na Key can operate separately and switch the person 10 200917093 machine interface switching device 50. The core flash 523 is a read only memory (NOR Flash) in which a human body, a plurality of applications, and graphics and text data for generating an application image signal 52a are stored. The function component 524 includes function application components 524 having different functions. The system controller 521 can perform the corresponding operation of the core flash memory cartridge according to the trigger of the recording control terminal 5221 and the input signal 20a of the input unit 20. And the application image signal 52a which is taken out from the core flash memory 523 and outputted to the multimedia unit 53 is output to the glory display, and 5322' is generated to generate a corresponding screen display function menu a (not shown) Output to display transposition 40, let the option in the _Delta age Wei menu a be selected or set parameters. The following examples are descriptions of the different functions of the system controller 521: the system controller 521 I - a micro control unit a - c〇ntrci stealing), the functional component 524 contains - a record for storing application functions such as a phone book and a notepad NAND-type flash memory, an instant controller RTC circuit for timing information to provide time information and for sensing environmental information such as 'temperature, humidity, smoke or toxic gases' or multiple environmental sensors. 200917093 The system controller 521 can display the options in function menu A according to the screen, by means of the core. The application, graphics, and text data of the above functions stored in the Panasonic flash memory 523 are stored, and the data of the function component 524 is accessed, and the corresponding application image signal 52a to the screen display of the multimedia unit 53 is generated and output. The device 42 is not generated, and the display unit 4Q is displayed, so that the human-machine interface switching device 5G can be equipped with functions such as electric rotation, turn, (10), clock, temperature display, and humidity display. The system controller 521 can also be a micro-control unit with strong computing power, such as ARM or MIPS, with complex functional elements 524. For example, the function piece 524 can be a network data communication circuit such as 汕乩m〇dem or Cable m〇dem, and the video generator 5321 can be a 2D graphics acceleration circuit, and the core flash memory 523 stores the drive. The system controller 521 can generate the application image signal 52a with the application unit in the wheel-in unit 2 and the core flash memory 523 in the program, graphics, and text data of the above device, and a network browsing application. The video generator 5321 is displayed on the display unit 40. Thus, the human interface switching device 5 can have a network browser stand-alone function. Under the same working principle, the function component 524 can be a card reader or a non-volatile memory loaded with a game. The video generator 5321 can be a 2D or 3D graphics acceleration circuit, and the system control state 521 is matched with the input unit 20 and The corresponding application body in the core flash memory 523, the human interface switching device 50 can have the function of the game machine 200917093. The function component 524 can also be a storage medium such as a card reader, a hard disk drive, or an optical disk drive. The video generator 5321 can be a JPEG-decompressed soft hardware. The human-machine interface switching device 50 has the function of a digital photo frame. The video generator 5321 can be MPEG MPEG2/MPEG4 decompressed software and hardware, and the human interface switching device 50 is a multimedia player. When the function component 524 is a camera and a hard disk drive, and the video generator 5321 is a JPEG/MPEG1, MPEG2/MPEG4 decompressed software and hardware, the human-machine interface switching device 5 can have functions such as photographing, photographing, or video recording. All of the above applications can be applied to the present invention in conjunction with the application of the application technology, and are not in parallel. The system controller 521 can also perform the operation of the operation mode switching key 5222 of the human machine operation interface 522, and execute the corresponding firmware file in the core memory 523 to generate the image switching signal 52b and an input switching signal 52c. The working mode of the media unit 53 and the wheel switching unit 51, the human interface switching device 50 (not shown) can generate at least the following four working modes: 1. Working mode 1: setting the image switching signal 52b to be turned on. The image signal 52a is applied to the image generation unit 532. After the corresponding application image is generated, it is transferred to the video switch 5314 and the video overlay | § 5317 and the image signal 30a are switched, stacked, and finally the image is displayed on the display unit 40. Further, the input switching signal 52c is set to 200917093. The logic i potential can represent a high potential or a low potential, and the control input switching unit 51 causes the input device to control the human interface switching device 50. 2. The working mode setting image switching signal 52b turns on the application image «52a' to be transmitted to the image generating unit. After the corresponding application image is generated, it is transferred to the video switcher 5314 and the video adder 5317 to switch and stack the image signal 3A, and finally the image is displayed on the display unit 4G. Further, the input signal is set to a logic 0 - (l〇gic 〇). The logical zeta potential can represent a low potential or a potential potential. The control input switching unit 51 causes the input device 20 to control the image signal unit 3A. 3. Working mode 3: setting the image switching signal 52b to turn off the image generating unit 532 'the application image signal 52a is not displayed on the display unit 40 ° at this time 'the image signal unit 3 〇 transmitted image signal 3 〇 a The processing by the image processing unit 531 is displayed on the display unit 40. Further, the input switching signal 52c is set to logic 1/, and the control input switching unit 51 causes the input device 20 to control the human interface switching device 50. 4. Operation mode 4: The set image switching signal 52b turns off the image generating unit 532 so that the application image signal 52a is not displayed on the display unit 40. At this time, the image signal 30a transmitted from the image signal unit 30 is processed by the image processing unit 531 and displayed on the display unit 200917093 40. Moreover, the input switching signal 52c is set to logic, (Γ, the control input switching unit 51 causes the input device 20 to control the image signal 3 tiger early 30. The input switching can be implemented in a variety of ways to implement the human-machine interface switching function. It is an example schematic diagram of the input switching unit _ mode to implement the switching function, and is consistent with some embodiments of the present invention. Referring to the fourth figure, the input switching unit 51 includes a universal serial bus (Universal Serial Bus, USB) switch circuit 5U, a first universal string ship master controller (10) B h〇st (10) tr〇Uer) 512 or a universal serial bus 0TG controller (USB 0TG c〇ntr〇Uer). In this embodiment, a first universal serial bus master controller and a multi-port USB bus 513 are illustrated as an embodiment. The universal_column switching circuit 511 can include a human interface interface H (HID P〇rt) 5111, a primary connection bee (H〇st p〇rt) 5112, and a hub connection hull (Hubport) 5113. An upstream port of the universal serial bus hub 513 is connected to the image signal unit 3, and a downstream port is connected to the hub port 5113. One end of the first universal serial bus master controller 512 is connected to the main port 5112, and the other end is connected to the system controller 521 of the work tb application unit 52. When the universal serial bus mouse 21 and the universal_column keyboard 22 are respectively connected to the human interface interface 111 5111, the system controller 521 of the function application unit 52 returns - input 15 200917093 switching signal 52c ' to specify the universal The serial bus bar 21 and the universal serial bus keyboard 22 are connected to the universal serial bus hub 513 for switching to the hub connection 113 5113 or to the main serial port i 51 i2 for connecting the first universal serial bus master controller 512. . When the input switching signal 52c is logical, 〇/turn to logic, 1 -, the human interface interface 埠 51 is connected to the main connection 埠 5112, the universal serial bus squirrel 21 and the universal serial bus keyboard 22 The human interface connection 埠 5111, the main connection 埠 5112, the first universal contending bus main control state 512 and the system controller 521 are sequentially connected. The system controller 521 activates the first universal serial bus master controller 512 to perform initialization of the universal serial bus, and after the authentication process, establishes the throttle ship 21 and the universal serial bus keyboard 22 The connection, the junction, and thus the first-general-column bus master controller 512 manages the money-collecting bus 21 and the universal serial bus keyboard 22. The system controller 521 obtains the input signal of the universal serial busbar sliding " and the universal serial bus keyboard μ from the first universal serial bus master controller 512, and executes its internal-mouse decoder 5211 and a keyboard decoding. The device 5212 and the like are initialized, and the action of executing the universal (four) bus mouse 2ι with the universal serial bus keyboard 22 is displayed. When the input switch 5 tiger 52c is logically converted from 1 to logical, the human interface connection 埠 5m is connected to the hub connection scale 5113, the universal serial port 200917093 flow line mouse 21 and the universal serial bus keyboard 22 are The serial connection of the human interface interface 璋 5111, the hub connection 埠 5113, and the downlink 到达 of the universal serial bus hub 513 are connected. The system controller 521 activates the universal serial bus concentrator 513 to connect the downstream port of the universal serial bus hub 513 to the upstream port of the general serial bus hub 513 and then to the image signal unit 30. The second universal string ship row main controller 31 in the image signal unit 3G starts the flow of the rich ship flow, and after the authentication process, the 'establishment and the pass ship line mouse 21 and the universal_ship row keyboard The link of 22 is controlled by the second universal serial bus master controller 31 of the image signal unit 3A to manage the shuttle ship chow 21 and the coffee bar column switch keyboard 22. The fifth figure is a schematic diagram of an example of working mode switching. The working mode 1 is set to the human interface switching device 5Q, and the multimedia unit 53 receives the application image signal 52a from the function application unit 52, and is stacked with the image signal 3Ga, and causes the input switching unit 51 to input. The input of unit 2〇 is sent to the system controller milk of function application unit 52 minus 2Ga. The function application unit 52 causes the image generation unit 532 of the multimedia unit 53 to generate a firefly_display ship material A display age _ 4g, such as computer A currency conversion system A2, measurement unit conversion A3, etc., when the human machine operates the interface milk The screen age control _5221 or the wheel unit 2Q county screen display function selection system controller 521 executes an application corresponding to the application function option. 200917093 A mouse 21 difficult 22 is connected to the system = 521 through the wheel altering unit 51, the _ mouse 21 button coordinate signal, which is decoded by the mouse decoder 5211 preset in the controller 521 and sent to the multi-body :兀53, the play center 211 corresponding to the movement of the mouse 21 is generated on the display unit 4G. When the user uses the cursor A1 to select the computer A1 of the screen display function menu A, the system controller 521 is composed of the core flash memory. The image and the text generated by the image are sent to the image generating unit 532 of the multi-cell unit to be displayed on the display unit 4(), and the virtual computer is used as the user's mouse. Click on the number ^ operator symbol on the virtual computer or the disk 22 to directly input the number and the operation symbol for calculation. When the function component 524 of the function application unit 52 includes the _ type flash memory, the instant controller circuit, and - or The plurality of environmental senses, so the human interface switching device 50 can provide functions such as the clock A4, the phone book A5, the notebook A6, and the environment sensing A7. To this end, the core flash memory 523 in the function unit 52 is simultaneously Store clock A4, phone book A5 An application such as Notepad and Environment Sensing A7 display, and the system controller 52i can access the application function related information of the function component 524. When the operation mode is - the system controller 521 is controlled according to the screen display of the human machine operation interface 522. The key 5221 and the input 3, 20a ' of the input unit 21, 22 cause the multimedia unit 53 to go to the flashing menu A. The screen function option a can be the clock A4, the telephone net A5 2 200917093, the book A6, And the environment sensing A7, such as temperature, humidity, etc. When the clock M is selected to generate an input signal to the system controller 521, the system controller 521 obtains time information from the instant controller circuit and sends it to the image generating unit 532' The display unit 4 generates a time display block to display the time. When the function application unit 52 displays the control key 5221 and the input unit 2 according to the screen of the man-machine operation interface 522, the phone in the screen display function menu A is selected. The recording poor material associated with the phonebook A5 in the thin A5'_D type flash memory is read by the system controller 521 and processed by the multimedia unit 53 and output to the display. The unit 40. Therefore, a phone book A5 is displayed on the display unit 40 for the user to check the previously recorded phone information, the option of the previous page, the next page or the user may also click the new option on the phone book. The new telephone information is input by using the keyboard 22, and the input signal of the keyboard 22 is decoded by the keyboard decoder 5212 built in the system controller 521, and then output to the image generating unit 532 and stored in the NAND flash memory. The user can return to the on-screen display function menu a to select other functions by simply turning off the option on the mouse 21 .::'. When the environmental sensing A7 in the screen display function menu A is selected, if the temperature generates a rounding signal to the system controller 521, the system controller 521 obtains the environmental sense corresponding to the environmental sensing A7 (eg, temperature sensing) The measured information (ie, temperature) transmitted by the device is transmitted to the multimedia unit 53, and the instantaneous temperature is displayed on the display unit 40. Similarly, the sensing function such as the ambient humidity 200917093 can also be implemented as described above. When the human-machine interface switching device 5 (not shown) is in the working mode 1, and the system controller 521 determines that the user moves the cursor 211 to the display unit (the area of the non-screen display function menu A) and clicks The system controller 521 determines that the user wants to send the input device 2 and the input signal 2〇a to the image signal source unit 3 while retaining the currently executed application function. Therefore, the function unit 52 outputs the image switching signal 52b and the wheel switching signal 52c, and switches the human interface switching device 5 to the operating mode 2, so that the input switching unit 111 transmits the input unit 21, 22 through the universal string. The column bus line! § '32 (not shown) is connected to the image signal unit 3〇, and the input signals of the input units 21 and 22 are sent to the image signal unit 30 through the USB hub 32. Since the image signal 3〇a and the image of the application image signal 52a are displayed in a stacked manner at the time, the user controls the image signal unit 3〇 by inputting an instruction through the input unit 21'22. Application functions that were originally turned on or in the working mode are still persistent and will not be turned off. When the human-machine interface switching device 50 is in the working mode 1, the user selects the mode switch Α8 of the screen display function menu 以 by the screen display control key 5221 or the input unit 21, 22, and the system controller 521 outputs the image switching signal 52b and The switching signal 52C is input, and the human interface switching device 5 switches the operating state of the operating mode 4 to 20 200917093. At this time, the multimedia unit 53 only accepts the image signal 30a from the image signal unit 30, and after processing, displays it in the display f unit 4G. And the input switching unit 51 inputs the input unit 2 of the input unit 2 into the image signal unit 3, so when the user operates the input unit 2, 22, although the input unit 2 is connected to the human machine interface Switching device 50 is 'but is to send the input signal to the image signal unit. Finally, when the human interface switching device 50 operates in the working mode 2 or the working mode 4, 'when the user wants to operate the option in the screen display function menu A again', the work mode switching button on the man-machine interface 522 is pressed. The lion can switch to work mode one. The sixth figure is a schematic diagram of an example in which the input switching unit implements the switching function in a digital mode, and is consistent with certain embodiments of the present invention. A 4-bee universal serial bus hub 6 includes an uplink traffic transceiver (Transceiver) 61 and four downlink universal serial bus transceivers, which are respectively connected to the image signal unit 3 and the input unit 2 Hey. Referring to the sixth figure, when the input switching signal 52c issued by the system controller 521 requests the input unit 20 to be connected to the image signal unit 30, the system controller 521 executes the hub controller of the core flash memory 523 ( Hub Contioller) 5213's body, controlling the upstream universal serial bus transceiver 61, the serial array engine (SIE) 63, the hub repeater (Hub Repeater) 64, the transport translator 200917093 (Transaction Translator 65, Routing Logic 66 and four 4 downstream universal serial bus transceivers 62 perform the function of a universal serial bus hub. When the input switching signal 52c issued by the system controller 521 requires the input unit 2A to be connected to the system controller 521, the system controller 521 executes the universal serial bus master controller of the core flash memory 523 (USB) Host Controller 5214 body, through a second serial interface engine 67, path logic 66 and 4 downlink universal serial bus transceivers 62 after the authentication process, the debt measured four 4 downlink input device categories . The system controller 521 then controls the path logic 66 to send the input signal 2〇a to the second_column interface engine and connect the other input devices to the hub function. The seventh diagram is another exemplary illustration of a multimedia unit and a functional application unit, and is consistent with certain embodiments of the present invention. Referring to the seventh figure, the image generating unit 532 includes a first video generator 5321, a second video generating state 5322, and a first video digital analog signal converter 5323a and a second video digital analog signal 5323b. The image processing unit 7 in this example includes a video switch 5314, a display interface 5315, a pre-amplifier 71, and a video adder 5317. One end of the preamplifier 71 is connected to the image signal 3 of the image signal unit 3 (^, and the other end is sequentially connected to the video switch 5314, the video adder 5317, the display interface 5315, and a display unit 4A. The first video generator 5321 and the second 200917093 video generator 5322 are both connected to the system controller 521 of the function application unit 52 and receive the application image signal 52a' and are respectively connected to a first video digital analog signal converter 5323a and a a second video digital analog signal converter 5323b. The first video digital analog signal converter 5323a is coupled to the video switch 5314; the second video digital analog signal generator 5323b is coupled to the video adder 5317. The video generator 5321 processes The application image signal 52a from the functional application unit 52 is transmitted to the video switcher 5314 and the image signal 30a via the first video digital analog signal converter 5323a, and then transmitted to the video adder 5317; The display generation 5322 processing application image signal 52a is adjusted by the second video digital analog signal converter 5323b and transmitted to the video. The adder 5317 is stacked with the image signal transmitted from the video switch 5314 and displayed on the display device 40 through the display interface 5315. The image switch signal 52b of the system controller 521 is respectively transmitted to the video switch 5314 and the video is superimposed. 5173, the image switching function of the video switch 5314 and the image stacking function of the video adder mi? can be turned on. However, the above description is only for the scale of the present invention. The implementation of the system, that is, the big New Zealand issue, the equal changes and modifications made by the scope of the patent should still be within the scope of the patent of the invention. 0 23 200917093 [Simplified illustration] The first picture is an example of a computer system architecture. 2 is a schematic diagram of the application of the present invention to a system environment. The second diagram is a schematic diagram of an architecture according to the present invention. The third diagram is a schematic diagram of an example of a multimedia unit and a functional application unit, and the present invention Some embodiments are consistent. The fourth figure is an example schematic diagram of the input switching unit implementing the switching function in an analog mode. A schematic diagram of an example of handover. The sixth diagram is an example diagram of an input switching unit implementing a switching function in a digital mode, and is consistent with some embodiments of the present invention. The seventh figure is another example of a multimedia unit and a functional application unit. Schematic and consistent with some embodiments of the present invention. [Main component symbol description] 11 monitor 122 keyboard 20a input signal 211 cursor 10 host 12 input unit 121 mouse 20 input unit 21 universal · column bus mouse 24 200917093 22 universal serial bus keyboard 30 image signal unit 31 second universal serial bus main controller 40 display unit 50 human interface switching device 51 input switching unit 511 universal serial bus switching circuit 5111 human interface interface 5113 hub connection 512 first universal serial bus master controller 513 universal serial bus hub 52 function application unit 52a application image signal 52c input switching signal 521 system controller 5211 mouse decoder 5213 hub controller 30a Like signal 32 more than universal serial bus hub 5112 main connection 埠 52b image switching No. 5212 keyboard decoder 5214 universal serial bus 25 200917093 522 human machine operation interface 5221 screen display control key 523 core flash memory 524 function element 53 multimedia unit 531 image processing unit 5311 image signal interface 5313 post processing 5315 display Interface 532 image generating unit 5321 first video generator 5323a first video digital analog signal generator 6 multi-function universal serial bus hub 61 uplink universal serial bus transceiver 63 first serial interface engine 65 transmission translator 67 second serial interface engine main controller 5222 working mode switching key 5241 function application component 5312 high performance scaling engine 5314 video switch 5317 video adder 5322 second video generator 5323b second video digital analog signal generator 62 downlink common Serial Bus Transceiver 64 Hub Repeater 66 Path Logic 26 200917093 7 Image Processing Unit 71 Preamplifier A Screen Display Function Menu Μ Computer Α 2 Currency Conversion A3 Measure Unit Α 4 Clock Α 5 Phone Α 6 Notepad Α 7 Environment Sensing Α8 mode switching logic ~ factory logic 27