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t iWMy&PA « 六、發明說明： 【發明所屬之技術頜城】 本發明是有關於/種多電腦切換系統’且特別是有關 於一種多電腦切換系統及其信號處理方法。 【先前技術】 一般來說，透過具有網路連接能力之遠端管理裳置來 管理遠端之機房設備已經成為一種必然的趨勢，例如位於 φ 台灣之管理者可以透過退端管理裝置對位於美國之飼服 器進行管理，以便在某些情況下’當位於美國之伺服器出 現故障時，位於台灣之管理者亦不需要親赴美國現場對伺 服器進行檢修。 請參照第1圖，第1圖繪示係為多電腦切換系統之示 意圖。多電腦切換系統10包括控制端電腦110、多電腦^ 換器120及被控電腦140。控制端電腦11〇經由網路耦= 至多電腦切換器120，而被控電腦14〇耦接至多電腦切 • 器120。其中，控制端電腦110可透過網路連接至多 切換器120,而被控電腦140亦可透過網路連接至多電= 切換器120。使用者透過控制端電腦11〇即能遙控位於= 端的被控電腦140。習知技術之缺點在於使用者必須在= 制端電腦110與被控電腦140之間來回地切換桌面。^ 外’現今越來越多的多電腦切換器強調其支援虛擬媒體 (Virtual Media)功能。透過虛擬媒體功能可將md/cd光 碟機以及其它儲存媒體映對至遠端的被控電腦14〇，管理 人員可從遠端輕鬆的執行槽案傳輸、安裝應用程式與 201104430 TW5496PA « ( 作業系統以及#斷問題。然而，如何能進一步地對虛擬媒 體功能進行補充及擴展即成為目前急需解決的重要課題。 【發明内容】 本發明係有關於一種多電腦切換系統及其信號處理 方法，其係補充及擴展虛擬媒體的功能如共享目錄、無縫 (seamless)視窗、剪貼薄(dipb〇ard)及滑鼠同步，大幅地增 加多電腦切換糸統的功能。 根據本發明之-方面，提出一種多電腦切換系統。多 電腦切換系統用以將控制端電腦耦接至至少一被押 腦。多電腦切換系統至少包含多電腦切換器、第一程^碼 及第二程式碼。多電腦切換器至少包含被控電腦連接璋及 控制裝置連接埠。被控電腦連接璋麵接於 制裝置連接埠耦接控制端電腦。篦 電月自而控 出數位影像信號。第二蝴 挺供使用者，丨面，用以允許使用者 多電腦切換系統並操作被控電腦。第=者"面來管理 像信號與控制端電腦的控制端影像信；：j更對數位影 端電腦使用第一作業系統且被使仃處理:當控制 時’使用者介面提供無縫一ss)視吏窗用模t作業系统 根據本發明之另一方面，提出— 信號處理方法。多電腦切換系統 61切換系統之 少-被控電腦及至少一控制裝置。；;電電:购^ 係分別電性連接於多電肋㈣，與控制裝置 含如下步驟：轉換被控電腦的類：二：方法方法包 、/像4竣成數位影像 201104430t iWMy&PA « VI. Description of the invention: [Technology of the invention] The present invention relates to a multi-computer switching system and is particularly related to a multi-computer switching system and a signal processing method thereof. [Prior Art] In general, it is an inevitable trend to manage remote room equipment through remote management devices with network connectivity. For example, a manager located in φ Taiwan can locate the US through the back-end management device. The feeding device is managed so that in some cases, when a server in the United States fails, the manager in Taiwan does not need to go to the United States to overhaul the server. Please refer to FIG. 1, which is a schematic diagram of a multi-computer switching system. The KVM switching system 10 includes a console computer 110, a multi-computer converter 120, and a controlled computer 140. The control computer 11 is coupled to the KVM switch 120 via the network, and the controlled computer 14 is coupled to the KVM switch 120. The console computer 110 can be connected to the multi-switch 120 through the network, and the controlled computer 140 can also be connected to the multi-switch=switch 120 through the network. The user can remotely control the controlled computer 140 at the = terminal through the console computer 11 . A disadvantage of the prior art is that the user must switch the desktop back and forth between the computer 110 and the controlled computer 140. ^ Outside Today, more and more KVM switches emphasize their support for Virtual Media. Through the virtual media function, the md/cd CD player and other storage media can be mapped to the remote controlled computer. The administrator can easily perform the slot transmission and install the application from the remote end with 201104430 TW5496PA « (operation system However, how to further supplement and expand the virtual media function has become an important issue that needs to be solved urgently. SUMMARY OF THE INVENTION The present invention relates to a multi-computer switching system and a signal processing method thereof. The functions of supplementing and expanding virtual media, such as shared directory, seamless window, dipb〇ard, and mouse synchronization, greatly increase the functionality of the multi-computer switching system. According to an aspect of the present invention, a The multi-computer switching system is configured to couple the control computer to at least one of the hacked brains. The multi-computer switching system includes at least a KVM switch, a first pass code, and a second code. At least the connected computer port and the control device port are connected. The controlled computer is connected to the device and connected to the device. The computer controls the digital image signal from the power of the month. The second butterfly is for the user to use, to allow the user to switch the system and operate the controlled computer. The =#&#; face management image signal and The control terminal image of the control computer;:j uses the first operating system for the digital computer and is processed by the user: when controlling, the user interface provides a seamless ss) In another aspect of the invention, a signal processing method is proposed. The multi-computer switching system 61 switches the system to less - the controlled computer and at least one control device. ;;Electricity: purchase ^ system is electrically connected to the multi-electric rib (four), and the control device contains the following steps: conversion of the class of the controlled computer: two: method method package, / like 4 竣 into digital image 201104430
.i WM96PA 信號；輸出被控電胞沾奴 利用多電腦切換器:，像信號至多電腦切換器； .來輸出數位影像信號至控制裝置；以 ^用使用者介面來控龍制裝置，藉讀數位影像信 —_進行處理，以提供無縫視窗。 :、’、讓發明之上述内容能更明顯易懂，下文特舉一較 佳貝施例，並配合所附圖式，作詳細說明如下： 【實施方式】 下述實&例係有關於—種多電腦切換系統及其信號 处理方法。夕電腦切換系統用以將控制端電_接至至少 :被控電腦。多電腦切換系統至少包含多電腦切換器、第 -程式碼及使用者介面。多電腦切換器至少包含被控電腦 連接埠及控職置連接埠。被控電腦連接賴接於被控電 腦’而控制裝置連接埠輕接控制端電腦。第—程式石馬儲 於一儲存单兀中’並可執行於被控電腦中，用以使 腦輸出數位影像信號。使用者介面用以 ^ ，面來管理多電腦切換系統並操作被控電腦者 = 糸由執行於控制端電腦上之第二程式· 斤提供，用以 處理立讀錢與㈣端電㈣控制端影像信號來進行 ’以提供一無縫視窗。 實施例 發明ϋ時參f第2 ®及第4圖’第2 ®繪轉、為依照本 知乃貫知例之多電腦切換系統之方塊示意 ^ . 不1圓$會不 '、為依照本發明實施例之多電腦切換系統之架構示音 201104430.i WM96PA signal; output controlled cell smuggler using multi-computer switch:, like signal to multi-computer switch; to output digital image signal to control device; use user interface to control dragon device, borrow reading The digital image letter is processed to provide a seamless window. The following contents of the invention can be more clearly understood. The following is a detailed description of the invention, and is described in detail with reference to the following drawings: [Embodiment] The following examples are related to - A multi-computer switching system and its signal processing method. The computer switching system is used to connect the control terminal to at least: the controlled computer. The PC switching system includes at least a KVM switch, a code and a user interface. The KVM switch contains at least the controlled computer port and the console port. The controlled computer connection is connected to the controlled computer' and the control device is connected to the control computer. The first program horse is stored in a storage unit and can be executed in the controlled computer to output digital image signals to the brain. The user interface is used to manage the multi-computer switching system and operate the controlled computer = 提供 is provided by the second program executed on the control terminal computer to handle the reading and (4) terminal (four) control terminal The image signal is used to 'provide a seamless window. In the embodiment of the invention, the second and fourth diagrams of the second and second diagrams are shown in the block diagram of the multi-computer switching system according to the knowledge of the present invention. The architecture of the multi-computer switching system of the embodiment of the invention is shown 201104430
TW5496PA 圖。控制裝置210可透過多電腦切換系統2〇麵接至被控 電腦240。多電腦切換系統20更包含多電腦切換器220、 第一程式碼、信號處理裝置230及使用者介面。控制裝置 210可經由網路250連接至多電腦切換器22〇。控制裝置 210可為一控制端電腦，且控制裝置210包括至少一周邊 裝置’周邊裝置係選自由鍵盤212、滑鼠214及顯示器 216所組成之族群。 多電腦切換器220至少包含被控電腦連接埠222、控 制裝置連接埠224及備援(redundant)網路連接埠226。被 控電服連接璋222可為一網路連接埠，控制裝置連接埠224 例如可為RJ-45連接埠或其他任意適當之連接琿。被控電 腦連接埠222耦接於被控電腦24〇，且被控電腦24〇係控 制於多電腦切換器22〇,以輸出數位影像信號或類比影 像信號、。而控制裝置連接埠224耦接控制裝置21〇。當控 制，置連接埠224發生故障時，多電腦切換器22〇可透過 接埠226耦接至控制裝置210，以確保多電腦 ==的正常運作。為方便說明起見，"圖繪示 電腦240表示，然本發明並不侷限於此。 腦連接埠更可包括多台分職接至多個被控電 -控制端模組來’而控制裝置210更能利用 第一口、褐接至多電腦切換器220。 軟體或是^存—儲存裝置中，且第-程式碼可為 或任何具有通用庠兀例如為電腦可讀取媒體，如光碟 介面的儲存裝置/1 匯流排（UniversalSerialBus，USB) 月1J述儲存單元例也可由信號處理裝置 201104430 , .ΊΛν5496ΡΑ 230所實現，當作 即能自動地將^ w理裝置230連接至被控電腦24〇時， 碼係執行於被控電=式碼安裝至被控電腦。第一程式 位影像信號。使$ 中，用以使被控電腦施輸出數 來管理多電腦切2介面用以允許使用者利用使用者介面 面係由第二程式碑系統2〇並操作被控電腦謂。使用者介 別，用以對數U所提供’第二程式竭係執行於控制震置 信號來進行處^ 7信號f控制裝置21G的控制端影像 _分，在控㈣腦2ln 可為—KVM f理軟體之部 可與多電腦切換9或裝置上安裝之後’此KVM管理軟體 體可以解吃户雷° 220相互進行溝通。例如此KVM管理軟 可餘制㈣22G所傳來之封包，使這些封包 了被控制電腦210轉換為影像訊號顯示在螢幕216上 =將鍵盤212或滑鼠214輸出之指令轉 多㈣切換器⑽，如此使用者便可藉由此™管理t 所提供之功能操作多電腦切換器2 2 〇以及至 腦 240 。 € /言號處理裝f 230又可稱為被控端模組，用以將被控 耦接於多電腦切換器220’藉以在被控電腦24〇 ,、夕電腦切換器220之間形成一個虛擬媒體通道，且利 用此虛擬媒體通道來傳輸數位影像信號以及達成以下所 述之其他功能。信號處理裝置230包括第一介面232及第 二介面234。信號處理裳置23〇透過第一介面⑽來接收 被控電腦240輸出的數位影像信號，並透過第二介面 接收該被控電腦的類比影像信號。其中，第一介面232 例如為USB介面，而第二介面234例如為糧介面或是TW5496PA diagram. The control device 210 can be connected to the controlled computer 240 through the KVM switching system 2. The KVM switch system 20 further includes a KVM switch 220, a first code, a signal processing device 230, and a user interface. Control device 210 can be coupled to KVM switch 22 via network 250. The control device 210 can be a console computer, and the control device 210 includes at least one peripheral device. The peripheral device is selected from the group consisting of a keyboard 212, a mouse 214, and a display 216. The KVM switch 220 includes at least a controlled computer port 222, a control device port 224, and a redundant network port 226. The controlled electrical device port 222 can be a network port, and the control device port 224 can be, for example, an RJ-45 port or any other suitable port. The controlled computer port 222 is coupled to the controlled computer 24〇, and the controlled computer 24 is controlled by the KVM switch 22〇 to output a digital image signal or an analog image signal. The control device port 224 is coupled to the control device 21A. When the control port 224 fails, the KVM switch 22 can be coupled to the control device 210 via the port 226 to ensure normal operation of the multi-computer ==. For convenience of explanation, the "illustration computer 240 indicates that the present invention is not limited thereto. The brain port can further include a plurality of slaves connected to the plurality of controlled power-control terminal modules, and the control device 210 can further utilize the first port and the brown to the KVM switch 220. The software may be stored in a storage device, and the first code may be any storage device having a general purpose, such as a computer readable medium, such as a disk interface, and a bus (Universal Serial Bus, USB). The unit example can also be implemented by the signal processing device 201104430, .ΊΛν5496ΡΑ 230, as if the control device 230 can be automatically connected to the controlled computer 24〇, the code system is executed on the controlled power=code to be charged computer. The first program image signal. The $ is used to enable the controlled computer to output the number to manage the multi-computer 2 interface to allow the user to use the user interface to operate the second computer system and operate the controlled computer. The user interface is used to perform the second program provided by the logarithm U to perform the control of the vibration signal to perform the control image of the control device 21G. The control (4) brain 2ln can be -KVM f The software software can be switched with the multi-computer switch 9 or after the device is installed. 'This KVM management software body can communicate with each other. For example, the KVM manages the soft-responsible (4) packets sent by the 22G, so that the packets are converted into image signals by the control computer 210 and displayed on the screen 216. The command outputted by the keyboard 212 or the mouse 214 is transferred to the (four) switcher (10). In this way, the user can operate the KVM switch 2 2 〇 and to the brain 240 by the functions provided by the TM management t. The €/Word processing device f 230 may also be referred to as a controlled terminal module for coupling the controlled switch to the KVM switch 220' to form a computer between the controlled computer 24 and the computer switch 220. A virtual media channel that utilizes this virtual media channel to transmit digital image signals and achieve other functions as described below. Signal processing device 230 includes a first interface 232 and a second interface 234. The signal processing device receives the digital image signal outputted by the controlled computer 240 through the first interface (10), and receives the analog image signal of the controlled computer through the second interface. The first interface 232 is, for example, a USB interface, and the second interface 234 is, for example, a grain interface or
201104430 TW5496PA 其他任何適當的影像介面。信號處理裝置230更可支援虛 擬媒體(Virtual Media)功能，以提供多電腦切換系統20 — 個虛擬媒體通道（Virtual Media Channel)。例如，連結於控 制裝置210之一儲存裝置可藉由此虛擬媒體功能分享給 被控電腦240。如此一來，使用者可從控制裝置210將資 料傳送到被控電腦240，並直接從虛擬媒體通道執行診斷 測試、下載檔案、安裝程式或載入作業系統等工作。 此信號處理裝置230主要具有一 USB裝置控制器 (USB Device Controller)，其可藉由USB標準所制定之相 關協定與被控電腦240之作業系統進行溝通，以便在被 控電腦240上模擬出前述之虛擬媒體供被控電腦24〇使 用。與被控電腦240連結之後，此信號處理裝置230便會 在被控電腦240上安裝一驅動程式（亦即前述之第一程 式碼）。如此第一程式碼便可在被控電腦240上形成一映 射s己憶體以儲存被控電腦240所輸出之影像（例如其桌 面或是某一視窗之影像）。隨著使用者操作此被控電腦 240 ’此映射記憶體之内容會一直被被控電腦240之作業 系統更新（其更新速度可能與影像禎之更新頻率不同/。' 更詳細地說，此時第一程式碼會持續地，或是依據某此 旗標（f 1 ag) ’或是視窗物件代碼（Handle)所提供之^今 來比較前後連續兩禎（frame)當中有蠻仆夕 ^ ^ 力艾亿之一或多個區 塊（block;或統稱為”更新區域”）之間的差異，、 新區域當中的像素值（pixel value)儲存起來，並 電腦切換器220以壓縮或是無壓縮之方式傳送终 ^夕 的控制電腦或是控制裝置210。有一種情、、β 、、：另—端 兩禎之更新區域有所重疊，則重疊部分的像素值 '、不會被 201104430 • 1 WD4V〇m 傳送至控制電腦，僅有非重疊部分之像素值會被傳送至 控制電腦H式碼接收這些像素值之後便可據以執行 前述之無缝視窗功能。在傳送影像變化區塊相關像素之同 時，亦可將滑鼠同步、剪貼薄及檔案分享等功能所需之 資訊一併傳給控制電腦或是控制裝置21〇。 當刖述艾控電腦240執行第一程式碼時，數位影像信 號可先壓縮後再輸出至多電腦切換器22〇 ,以減少資料量 並提高資料的傳輸速度。數位影像信號的壓縮工作除了由 φ 夂控電腦240執行外，亦可先由信號處理裝置230壓縮數 位影像#號後再輸出至多電腦切換器220。 請參照第5圖，第5圖繪示係為本發明前述之多電腦 切換器220的示意方塊圖。多電腦切換器22〇更包括影像 處理單元2210、矩陣式切換器222〇及中央處理器223〇。 矩陣式切換器2220搞接於複數個被控電腦連接槔224， 用以將被控電腦240所輸出之複數個數位影像信號或類 比影像信號選擇性地輸出至影像處理單元221 〇。此矩陣 # 式切換器2220可為一 16輸入及5輸出之交又點切換器 (cross-point switch)或是複數個交又點切換器所共同組 成之矩陣式切換模組。若此矩陣式切換器222〇係為一 16輸入及5輸出之交又點切換器，則同時可由16台被控 電腦240中選出5路影像信號並輸出至控制裝置2ι〇或是 控，電腦。中央處理器2230耦接於影像處理單元221〇, 並女排數位影像信號或類比影像信號至控制電腦之 路徑。 清參照第6圖，第6圖繪示係為影像處理單元與矩 201104430 TW5496PA * 陣式切換器之示意圖。每一影像處理單元2210更包括差 動單端轉換器2212、類比數位轉換器2214及數位影像 處理器。差動單端轉換器2212用以接收差動模式之類比 影像信號，並將其轉換單端模式後輸出至類比數位轉換 器2214，而類比數位轉換器2214用以來自差動單端轉 換器2212之將類比影像信號轉換為數位信號。數位影像 處理器2216用以將數位信號進行取樣、編碼、加密及/ 或壓縮。 請參照第3圖，第3圖繪示係為依照本發明實施例之 多電腦切換系統之信號處理方法之流程圖。信號處理方 法用於前述多電腦切換系統，且信號處理方法包含如下 步驟：首先如步驟610所示，轉換被控電腦240的類比 影像信號成數位影像信號（這些數位影像信號係以禎之方 式儲存在記憶體中），比較前後連續兩禎之差異，找出更 新區域（變化區塊）以及有變化之像素。接著如步驟620所 示，被控電腦240輸出代表這些更新區域或更新像素的 數位影像信號至多電腦切換器220。跟著如步驟630所 示，利用多電腦切換器220來輸出數位影像信號至控制 裝置210。最後如步驟640所示，利用使用者介面來控 制控制裝置210，第二程式碼並對數位影像信號與控制 端影像信號來進行相對應之處理。例如，第二程式碼持 續地將被控電腦240傳來之影像信號與控制電腦之桌面 組合起來以供使用者操作無縫視窗。 請參照第7圖，第7圖繪示係為信號處理裝置之示意 圖。信號處理裝置230除前述之第一介面232及第二介面 201104430 1 i wMvom 234外’更能包括數位影像信號壓縮單元说 ㈣壓縮單元236透過第—介面232接收被控電腦24〇= 第4圖繪不）輸出之數位影像信號，並將壓縮數位影像信 唬後輸出。如此一來，將能進一步提高資料的傳輸速度。 請再參照第4圖，前述被控電腦240輸出之數位影像 k號包括至少一被控端視窗，而控制裝置21〇的控制端影 號包括一控制端桌面影像。被控電腦24〇的被控端視 ®係重疊於控制裝置210的控制端桌面影像上。而前述使 籲用者”面進一步包括共旱目錄模式、無縫(seamless)視窗模 式、剪貼薄(clipboard)模式及滑鼠同步模式。此外，檔案 係允許由被控電腦240傳送至控制裝置21〇、由控制裝 置210傳送至被控電腦24〇、或是在多台被控電腦24〇 之間傳送。請同時參照第4圖及第8圖，第8圖繪示係為 共享目錄模式之示意圖。進—步來說，被控電腦24〇輸出 之數位影像信號與控制裳置21〇的控制端影像信號係被 處理成至少-目錄集，而於顯示器216上同時顯示控制 鲁裝置210的檔案目錄1〇1〇與被控電腦24〇的樓案目錄 1020 ’以達到目錄共享的目的。 *凊同時參照第4圖及第9圖，第9圖繪示係為無縫視 窗模式之示意圖。當前述控制震置21〇使用第一作業系 =且被控電腦240使用第二作業系統時，使用者介面提 ,一無縫（seamless)視窗模式。舉例來說，第一作業系統 ^為Window XP ’而第二作業系統係為ubuntu，使用者 :丨面所提供的無縫視窗模式將如第9圖繪*。在此無縫 視窗模式下，使时介面係允許同時顯示第—作業系統 201104430201104430 TW5496PA Any other suitable image interface. The signal processing device 230 further supports a virtual media (Virtual Media) function to provide a virtual media channel (Virtual Media Channel). For example, one of the storage devices coupled to the control device 210 can be shared by the virtual media function to the controlled computer 240. In this way, the user can transfer the data from the control device 210 to the controlled computer 240 and perform diagnostic tests, download files, install programs, or load the operating system directly from the virtual media channel. The signal processing device 230 mainly has a USB device controller (USB Device Controller), which can communicate with the operating system of the controlled computer 240 by a related protocol established by the USB standard to simulate the foregoing on the controlled computer 240. The virtual media is used by the controlled computer. After being connected to the controlled computer 240, the signal processing device 230 installs a driver (i.e., the first program code described above) on the controlled computer 240. Thus, the first code can form a reflection on the controlled computer 240 to store the image output by the controlled computer 240 (for example, an image of a desktop or a window). As the user operates the controlled computer 240' the contents of the mapped memory will always be updated by the operating system of the controlled computer 240 (the update speed may be different from the update frequency of the image /.) In more detail, at this time A code will continue, or according to a certain flag (f 1 ag) ' or the window object code (Handle) provided ^ today and compare two consecutive frames (frame) in the middle of a servant The difference between one or more blocks (blocks; or collectively referred to as "update areas"), the pixel values in the new areas are stored, and the computer switcher 220 is compressed or uncompressed. The method of transmitting the final control computer or the control device 210. There is an emotion, β, and: the other end of the update area overlaps, the overlapping part of the pixel value ', will not be 201104430 • 1 WD4V 〇m is transmitted to the control computer, and only the pixel values of the non-overlapping part are transmitted to the control computer H code to receive the pixel values, and then the seamless window function can be performed according to the image. At the same time, the information required for functions such as mouse synchronization, scrapbooking, and file sharing can be transmitted to the control computer or control device 21. When the first control code is executed by the Ai control computer 240, the digital image signal It can be compressed first and then output to the KVM switch 22〇 to reduce the amount of data and increase the data transmission speed. The compression of the digital image signal can be performed by the signal processing device 230 in addition to the φ control computer 240. The image # is output to the KVM switch 220. Referring to Figure 5, Figure 5 is a schematic block diagram of the KVM switch 220 of the present invention. The KVM switch 22 further includes an image processing unit. 2210, a matrix switcher 222 and a central processing unit 223. The matrix switch 2220 is connected to a plurality of controlled computer ports 224 for outputting a plurality of digital image signals or analog images output by the controlled computer 240. The signal is selectively output to the image processing unit 221. The matrix #2 switch 2220 can be a 16-input and a 5-output cross-point switch or a complex A matrix switching module composed of a switch and a switcher. If the matrix switcher 222 is a 16-input and 5-output cross-point switch, it can be selected from 16 controlled computers 240. The image signal is output to the control device 2 〇 or the control computer. The central processing unit 2230 is coupled to the image processing unit 221 〇, and the female digital signal signal or the analog image signal to the path of the control computer. Figure 6 is a schematic diagram of an image processing unit and a moment 201104430 TW5496PA * array switcher. Each image processing unit 2210 further includes a differential single-ended converter 2212, an analog-to-digital converter 2214, and a digital image processor. The differential single-ended converter 2212 is configured to receive an analog image signal of the differential mode and convert it into a single-ended mode and output to the analog digital converter 2214, and the analog digital converter 2214 is used for the differential single-ended converter 2212. The analog image signal is converted into a digital signal. Digital image processor 2216 is used to sample, encode, encrypt, and/or compress digital signals. Referring to FIG. 3, FIG. 3 is a flow chart showing a signal processing method of a multi-computer switching system according to an embodiment of the present invention. The signal processing method is used in the foregoing multi-computer switching system, and the signal processing method includes the following steps: first, as shown in step 610, the analog image signal of the controlled computer 240 is converted into a digital image signal (the digital image signals are stored in a digital manner) In memory), compare the difference between two consecutive ,, find the update area (change block) and the pixel with change. Next, as shown in step 620, the controlled computer 240 outputs a digital video signal representing the updated area or updated pixels to the KVM switch 220. Following the step 630, the KVM switch 220 is used to output the digital video signal to the control device 210. Finally, as shown in step 640, the user interface is used to control the control device 210, the second code and the corresponding processing of the digital image signal and the control image signal. For example, the second code continuously combines the image signal transmitted by the controlled computer 240 with the desktop of the control computer for the user to operate the seamless window. Please refer to Fig. 7, which shows a schematic diagram of a signal processing device. In addition to the first interface 232 and the second interface 201104430 1 i wMvom 234, the signal processing device 230 can further include a digital image signal compression unit. (4) The compression unit 236 receives the controlled computer through the first interface 232. 24 第 = 4 Draws the digital image signal that is not output, and compresses the digital image and outputs it. In this way, the data transmission speed will be further improved. Referring to FIG. 4 again, the digital image k output from the controlled computer 240 includes at least one controlled terminal window, and the control end image of the control device 21 includes a control desktop image. The controlled terminal computer of the controlled computer 24 is superimposed on the control terminal desktop image of the control device 210. The foregoing "caller" face further includes a co-dry directory mode, a seamless window mode, a clipboard mode, and a mouse synchronization mode. Further, the file system is allowed to be transmitted by the controlled computer 240 to the control device 21. 〇, transmitted from the control device 210 to the controlled computer 24〇, or between a plurality of controlled computers 24〇. Please refer to FIG. 4 and FIG. 8 simultaneously, and FIG. 8 shows the shared directory mode. In the step of step, the digital image signal outputted by the controlled computer 24 与 and the control end image signal of the control 裳 21 被 are processed into at least a directory set, and the control device 210 is simultaneously displayed on the display 216. The file directory is 1〇1〇 and the file directory 1020' of the controlled computer 24〇 is used for directory sharing purposes. *凊 Refer to Figure 4 and Figure 9 at the same time. Figure 9 shows the schematic diagram of the seamless window mode. When the aforementioned control is set to use the first operating system = and the controlled computer 240 uses the second operating system, the user interface proposes a seamless window mode. For example, the first operating system is Window XP 'and second The system is based industry ubuntu, users: seamless window mode Shu surface provided as the schematic of FIG. 9 * In this seamless window mode, so that when the system interface allows simultaneous display of - 201 104 430 Operating System.
TW5496PA 的桌面1110及第二作業系統的功能表（，，開始，，功能. 表）1120。而前述第二作業系統的功能表82〇係疊加於第 二作業系統的桌面810上。或者是，同時顯示該第一作 業系統的一功能表及該第二作業系統的一桌面。如此， 控制裝置210之使用者便不需要在兩台電腦（控制電腦與 被控電腦）之間來回切換桌面以大幅提高操作上之便利 性，因為在第一作業系統的桌面1110下便可對第二作業 系統進行操作。另外，第一作業系統與第二作業I統^ 為相同類型或是不同的作業系統。 …請同時參照第4圖及第1G圖，第1G圖繪示係為剪貼· 薄模式之示意圖。前述控制裝置21〇及被控電腦24〇分 別包括記憶體，且控制裝£21〇的記憶體與被控電腦24〇 的記憶體同步。當使用者欲將控制裝置21〇的資料複製 貼上至被控電腦240時，控制裝置21〇的顯示器216上 同時顯示控制裝i210的文件編輯視窗121〇與被控電腦 240的文件編輯視窗122〇。使用者能透過文件編輯視窗 121J)選擇欲複製㈣份，再將複製的部份貼上文件編輯鲁 視固1220之後，控制裝置21〇會先向被控電腦發 出貼上的請求，再將欲貼上的資料送至被控電腦·， 以達到共享拷貝數據的目的。 除前述共享目錄模式、無縫視窗模式及剪貼薄模式 外，用者’丨面還包括滑鼠同步模式。前述被控電腦謂 執行第程式碼以伯測作業系統是否更新晝面，當作業系 統更新里面時，會主動地備份畫面資料，以供第一程式碼 使用。被控電腦240執行第一程式碼以比較目前畫面與前 12 201104430 s . i wD^y〇r/\ 次晝面的變化部份，並將變化部份輸出至控制裝置210， 進而達到滑鼠同步的目的。 本發明上述實施例所揭露之多電腦切換系統及其信 號處理方法補充及擴展虛擬媒體的功能如共享目錄、無縫 (seamless)視窗、剪貼薄(clipboard)及滑鼠同步，大幅地提 高多電腦切換系統的功能。 綜上所述，雖然本發明已以一較佳實施例揭露如上， 然其並非用以限定本發明。本發明所屬技術領域中具有通 • 常知識者，在不脫離本發明之精神和範圍内，當可作各種 之更動與潤飾。因此，本發明之保護範圍當視後附之申請 專利範圍所界定者為準。 【圖式簡單說明】 第1圖繪示係為多電腦切換系統之示意圖。 第2圖繪示係為依照本發明實施例之多電腦切換系 統之方塊示意圖。 第3圖繪示係為依照本發明實施例之多電腦切換系 • 統之信號處理方法之流程圖。 第4圖繪示係為依照本發明實施例之多電腦切換系 統之架構不意圖。 第5圖繪示係為本發明前述之多電腦切換器之示意 方塊圖。 第6圖繪示係為影像處理單元與矩陣式切換器之示 意圖。 第7圖繪示係為信號處理裝置之示意圖。 第8圖繪示係為共享目錄模式之示意圖。 13 201104430TW5496PA Desktop 1110 and the second operating system function table (,, start, function. Table) 1120. The function table 82 of the aforementioned second operating system is superimposed on the desktop 810 of the second operating system. Alternatively, a menu of the first operating system and a desktop of the second operating system are simultaneously displayed. In this way, the user of the control device 210 does not need to switch the desktop back and forth between the two computers (the control computer and the controlled computer) to greatly improve the convenience of operation, because the desktop 1110 of the first operating system can be The second operating system operates. In addition, the first operating system and the second operating system are the same type or different operating systems. ...Please refer to Figure 4 and Figure 1G at the same time. Figure 1G shows a schematic diagram of the clip-and-skin mode. The control device 21 and the controlled computer 24, respectively, include a memory, and the memory of the controlled computer is synchronized with the memory of the controlled computer. When the user wants to copy the data of the control device 21 to the controlled computer 240, the file editing window 121 of the control device i210 and the file editing window 122 of the controlled computer 240 are simultaneously displayed on the display 216 of the control device 21〇. Hey. The user can select (4) copies through the file editing window 121J), and then paste the copied part into the file to edit the Lu Shigu 1220, the control device 21 will first issue a request to the controlled computer, and then The posted information is sent to the controlled computer to achieve the purpose of sharing the copy data. In addition to the aforementioned shared directory mode, seamless window mode, and scrapbook mode, the user's face also includes a mouse sync mode. The aforementioned computer is said to execute the code to check whether the operating system is updated. When the operating system is updated, the screen data is actively backed up for use by the first code. The controlled computer 240 executes the first code to compare the current picture with the change portion of the previous 12 201104430 s. i wD^y〇r/\ times, and outputs the changed portion to the control device 210, thereby reaching the mouse The purpose of synchronization. The multi-computer switching system and the signal processing method thereof disclosed in the above embodiments of the present invention complement and expand the functions of the virtual media such as a shared directory, a seamless window, a clipboard, and a mouse synchronization, thereby greatly improving the multi-computer. Switch the function of the system. In view of the above, the present invention has been disclosed in a preferred embodiment, and is not intended to limit the present invention. A person skilled in the art having the knowledge of the present invention can make various changes and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. [Simple description of the drawing] Fig. 1 is a schematic diagram showing a multi-computer switching system. Figure 2 is a block diagram showing a multi-computer switching system in accordance with an embodiment of the present invention. FIG. 3 is a flow chart showing a signal processing method of a multi-computer switching system according to an embodiment of the present invention. Figure 4 is a schematic diagram showing the architecture of a multi-computer switching system in accordance with an embodiment of the present invention. Figure 5 is a schematic block diagram of the aforementioned KVM switch of the present invention. Figure 6 is a schematic diagram showing the image processing unit and the matrix switcher. Figure 7 is a schematic diagram showing a signal processing device. Figure 8 is a schematic diagram showing a shared directory mode. 13 201104430
TW5496PA 第第 【主要元件符號說明】 10 :多電腦切換系統 20 :依照本發明較佳實施例 之多電腦切換系統 110 :控制端電腦 120、220 ·多電腦切換器 140、240 :被控電腦 210 :控制裝置 212 :鍵盤 214 :滑鼠 216 :顯示器 222 :被控電腦連接埠 224 :控制裝置連接埠 226:備援（redundant)網路連 接蜂 230 :信號處理裝置 232 :第一介面 234 .第二介面 236 :數位影像信號壓縮單 元 250 :網路 610、620、630、640 :步驟 1010、1020 :檔案目錄 1110 :第一作業系統的桌面 1120 .第一作業系統的功能 表 1210、1220 :文件編輯視窗 2210 :影像處理單元 2220 ·矩陣式切換器 2212 :差動單端轉換器 2214 .類比數位轉換号 2216 :數位影像處理器 2230 .中央處理器TW5496PA No. [Major component symbol description] 10: KVM switching system 20: KVM switching system 110 according to a preferred embodiment of the present invention: Control terminal computer 120, 220 - KVM switch 140, 240: Controlled computer 210 : Control device 212: Keyboard 214: Mouse 216: Display 222: Controlled computer connection 埠 224: Control device connection 埠 226: Redundant network connection Bee 230: Signal processing device 232: First interface 234. Two interface 236: digital image signal compression unit 250: network 610, 620, 630, 640: steps 1010, 1020: archive directory 1110: desktop 1120 of the first operating system. Function table 1210, 1220 of the first operating system: file Editing window 2210: image processing unit 2220. Matrix switcher 2212: differential single-ended converter 2214. Analog digital conversion number 2216: digital image processor 2230. central processing unit