M299898 八、新型說明： 【新型所屬之技術領域】 本^作係有關於—種可遠距離接收差動數位訊號模 、且可遇距尚隹傳运/接收差動數位訊號系統及其數位顯示 器。 【先前技術】 一般而。，電腦主機與其所連接的顯示器之間的距離 正常的情況下不會太遠，然而’像是在大賣場或大型公司 ，的主機$ &些場所的電腦主機通常不會與顯示器位在 相同的地方。換古 >，垂听< + # 、口 電細主钱與其所連接的顯示器之間 的距離甚至可能長達數十或―、二百公尺之遠。 …坆種電腦主機訊號的傳遞’尤其是視訊常用的概訊 號往往會因為遠距離而受影響（衰減）。因此市面上發展 出各種的遠距離傳輪纜線’例如CAT5纜線。請參考圖卜、 專先上係#j用遇距離傳輸纟覽線15係用以連接—電腦主機 11與一遠端顯示器14。 通常該電腦主_需要利用一區域端(1〇cal)壓縮裝置 轉換並嶋數位訊號，藉由該遠距離傳輸 广傳輸壓縮訊號，且還需要利用—遠端一)解壓縮 衣：13接收壓縮過的數位訊號並將其解壓縮，然後在傳送 =端螢幕14。藉此，由於遠距離傳輸纜、㈣，例如⑽ 、、見線’係制差動傳輸訊號之傳送方式，因此視訊訊號較 不易受影響，更可確保其顯示晝質。 M299898 【新型内容】 土本創作乃提供一種可遠距離接收差動數位訊號模組、 可逷距離傳送/接收差動數位訊號系統及其數位顯示器。 本創作之一目的係提供一種可節省成本之遠距離接收差動 數位訊號模組及其遠距離傳送/接收差動數位訊號系統。 本創作之另一目的係提供一種數位顯示器，其可直接地接 收來自遠距離之外的區域端電腦主機之訊號。 本創作之一實施例係一種可遠距離接收差動數位訊號 模組。该可遠距離接收差動數位訊號模組包括一差動訊號 接收/傳送器以及一類比/數位面板訊號轉換模組。可遠 距離接收差動數位訊號模組係可接收來自一區域端之視訊 差動數位訊號，並處理視訊差動數位訊號以便輸出至一液 晶面板。 差動訊號接收/傳送器係用以接收視訊差動數位訊 號，且差動汛號接收/傳送器還包括一數位/類比轉換 态。忒數位/類比轉換器可將該視訊差動數位訊號轉為一 視吼類比訊號。類比/數位面板訊號轉換模組，係可將該 視訊類比訊號轉換成一視訊數位訊號以輸出至該液晶面 =。更進一步來說，該類比/數位面板訊號轉換模組更包 含·一縮放器（scalar)、一微控制器及一螢幕顯示操控器 (OSD)。其中縮放器係將視訊類比訊號轉換成該視訊數位 A "5虎蚪可讓該視訊數位訊號符合該液晶面板之規格。微控 制态係與該縮放态電性相連，以及螢幕顯示操控器係與該 M299898 縮放器及該微控制器電性相連，藉此控制該液晶面板之顯 示訊號。 ' 在本貝施例中，可遠距離接收差動數位訊號模組更包 含至少-主控輸人介面，其中該主控輸人介面係可與一鍵 皿或电性連接，使得—使用者可透過該鍵盤或該滑 鼠輸入一控制訊號至該差動訊號接收/傳送器。 此外’该差動訊號接收/傳送器更可接收來自一區域 端之音源差動數位訊號。可遠距離接收差動數位訊號模組 ^包括-可程式化邏輯裝置（CPLD)、—主控音源訊號轉換 器以及一主控音源介面，而該差動訊號接收/傳送器可可 透過該Q>LD的㈣，制主控音源訊㈣換器將音源差 動數位訊號轉為—音源類比訊號並輸出至該主控音源介 面。 本創作之另一實施例係一種可遠距離傳送/接收差動 數位。fiH先’其係可接收並處理—訊號以便輸出至 液aa面板可遠距離傳送/接收差動數位訊號系統包含 一可遠距離傳送差動數位訊號模組、一可遠距離接收差動 數位訊號模組以及一纜線。 其中，該可遠距離傳送差動數位訊號模組包括第一差 動訊號接收/傳送||。第_差動訊號接收/傳送器係可將 VGA訊號轉換成一視訊差動數位訊號。 可遂距離接收差動數位訊號模組包括一第二差動訊號 接收/傳达器及一類比/數位面板訊號轉換模組。第二差 動訊號接收/傳送器係接收視訊差動數位訊號。而且，該 M299898 -第二差動訊號接收/傳送器包括有一數位/類比轉換器、 该數位/類比轉換器可將相却至紅泰，， . ^ , σ j將視汛差動數位訊號轉為一視訊類 比汛號頦比/數位面板訊號轉換模組係可將視訊類比訊 號轉換成一視訊數位訊號以輸出至液晶面板。 纜線係分別連接該可遠距離傳送差動數位訊號模組與 該可遠距離接收差動數位訊號模組，以使得視訊差動數位 訊號傳送至該第二差動訊號接收/傳送器。 再者，本創作之再一實施例係一種數位顯示器，其包 含一液晶面板及一可遠距離接收差動數位訊號模組。換言 之，在本創作之實施例中，可遠距離接收差動數位訊號模 “組係可内建於數位顯示器，士π此一來即可大幅降低成本。 【實施方式】 6月參考圖2，本創作之一實施例之可遠距離接收差動 數位訊號模組的方塊示意圖。可遠距離接收差動數位訊號 •模組20包括一差動訊號接收/傳送器22以及一類比/數位 面板訊號轉換模組40。 差動汛號接收/傳送器22係用以接收視訊差動數位訊 號，例如視訊差動數位訊號可以係來自一區域端之視訊差 動數位訊號（以下圖4將有詳述）。差動訊號接收/傳送 器22還包括一數位/類比轉換器220。該數位/類比轉換 為220可將視訊差動數位訊號轉為一視訊類比訊號。類比 /數位面板訊號轉換模組40係將視訊類比訊號轉換成一視 訊數位訊號（例如LVDS訊號）以輸出至液晶面板（如圖 8 M299898 • 3所示的標號no )。 —在本貫施例中，可遠距離接收差動數位訊號模組2〇更 包含至少一主控輸入介面21a、2比，其中該主控輸入介 面21a、21b係可與一鍵盤或一滑鼠（如圖5所示的鍵盤 58與α乳59 )電性連接，使得使用者可透過鍵盤％或滑鼠 59輸入一控制訊號至該差動訊號接收/傳送器22。 此外’該差動訊號接收/傳送器22更可接收來自區域 端之音源差動數位訊號（以下圖4將有詳述）。可遠距離 接收差動數位訊號模組2〇更包括一可程式化邏輯裝置 (CPLD)、一主控音源訊號轉換器％以及一主控音源介面 • 25而该差動訊號接收/傳送器22可將音源差動數位訊號 ‘轉為一音源數位訊號。主控音源訊號轉換器26可透過該 CPLD的控制將音源數位訊號轉為一音源類比訊號並輸出 至忒主控音源介面25。因此，當主控音源介面25連接一音 響裝置（例如如@ 5所示的剩，八55)時，可使音源類比訊 φ 號輸出至音響裝置55。 更進一步來說，請參考圖3，類比/數位面板訊號轉 換模組40更包含··一縮放器（scalar)41、一微控制器（例如 MCU ) 42及一螢幕顯示操控器（〇SD)43 。 縮放器41係將視訊類比訊號轉換成該視訊數位訊號時 可讓該視訊數位訊號符合液晶面板52〇之規格。微控制器 42係與該縮放器41電性相連，以及螢幕顯示操控器犯係與 該縮放器41及該微控制器42電性相連，藉此控制該液晶面 板520之顯示訊號。舉例來說，螢幕顯示操控器43可供使 M299898 :者控制顯示晝面的移動或明亮，微控制器42則可依據液 曰曰面板520控制该縮放器41達成適當的調整顯示訊號。如 所週知，液晶面板52〇通常需要有控制板522來作控制， 例如角牛析度等控制，以及需要有電源及背光板（未圖示） 等以提供液晶面板520適當的控制，然而這此都是 的技術，故不在此贅述。 本創作之另一實施例係一種可遠距離傳送/接收差動 數位訊號系統。請同時參考圖4與圖5，可遠距離傳送/ 接，差動數位訊號系統4包含一可遠距離傳送差動數位訊 號模組3〇、一可遠距離接收差動數位訊號模組20以及一纜 線35 〇 . 该可遠距離傳送差動數位訊號模組30包括第一差動訊 號接收/傳送器32。第一差動訊號接收/傳送器％包含1 鍵盤滑鼠差動訊號接收/傳送器321及一勞幕差動訊號接 收/傳送為322。且該螢幕差動訊號接收/傳送器322係 #可將VGA訊號轉換成一視訊差動數位訊號。 _本貝鈿例中，可遠距離傳送差動數位訊號模組3〇更包 含一處理器33、-可程式化邏輯裝置（cpLD)37、—V(}a介 面Μ: —鍵盤介面31a以及一滑鼠介面3比。vga介面弘 與該螢幕差動訊號接&/傳送器322電性相連，藉此可使 VGA訊號係透過該VGA介面34傳送至該第—差動訊號接收 /傳送器32。 可遠距離接收差動數位訊號模組2〇包括一第二差動訊 號接收7傳送器22以及一類比/數位面板訊號轉換模組° 10 M299898 40。本實施例的可遠距離接收差動數位訊號模組汾實質上 係與圖2所述的可遠距離接收差動數位訊號模組2〇之實施 例相同。不過，由於圖2所示的遠端之差動訊號接收/傳 达為22亦可傳送訊號（例如主控鍵盤訊號、主控滑鼠訊號 或主彳工曰源汛號等），且圖4所示的區域端之差動訊號接 收/傳达器32亦可接收來自遠端的差動訊號接收/傳送器 22之訊號。因此，在本實施例中，區域端之差動訊號接收 /傳送器被稱為第一差動訊號接收/傳送器32 ;而將遠端 之差動汛號接收/傳送器稱為第二差動訊號接收/傳送器 22第差動汛號接收/傳送器32與第二差動訊號接收/ 傳达為22主要差別在於，第一差動訊號接收/傳送器32主 要是區域端的視訊差動數位訊號之傳送，而第二差動訊號 接收/傳达器22則主要是接收該視訊差動數位訊號。然 而，通端的第二差動訊號接收/傳送器22係已經詳如圖2 及圖3所述，故不再重述。 、見線35則係分別連接該可遠距離傳送差動數位訊號模 組3〇與該可遠距離接收差動數位訊號模組劝，以使得視訊 、動數位汛號被傳送至該第二差動訊號接收/傳送器。 如所週知者，多覽線35可以係300公尺遠的CAT5、CAT5e或 CAT6 〇 ^ 舉例來說，請同時參考圖4與圖5，可遠距離傳送差 動數位汛唬模組3〇連接到一電腦主機51。電腦主機51的 VGA :號係可透過可遠距離傳送差動數位訊號模組30的 面34傳送至第一差動訊號接收/傳送器32。如上所 M299898 述的’藉由第一差動訊获技你/ 7由 礼就接收/傳送器32將VGA訊號轉換 視訊差動數位訊號，並傳送㈣二差動訊號接收/傳送 -22取後可轉成視訊數位訊號（例如lvds訊號）輸 至液晶面板520 。 而且在車乂 >[土貝鈿例中’遠端的主控輸入介面仏、 21b可與鍵盤58及滑鼠59電性連接，使得使用者可透過鍵 i 58或α既59輸入一控制訊號至該差動訊號接收/傳送器 22。而且，區域端的鍵盤57與滑鼠兄亦可分別連接至鍵二 零介面31a以及滑鼠介面31b。 八遠鳊的第一差動訊號接收/傳送器22係可將主控輸入 • ”面21a、21b的控制訊號回傳至區域端的第一差動訊號 •接收/傳送器32，然後傳至處理器33。當使用者操作區域 ^的鍵盤57與滑鼠56時，所輸入的鍵盤訊號/滑鼠訊號可 ，過區域端的鍵盤介面31a以及滑鼠介面3比傳送至處理 ^ 因此，處理态33係可用以判斷並決定由區域端的鍵 ⑩盤57與滑鼠56還是遠端的鍵盤％與滑鼠外啟動作用 (active)。 此外’區域端的音源訊號則是利用CPLd37加以控 制备區域端的音源介面35接收到音源訊號可經由CPLD 37的控制由音源轉換器36轉換成一數位音源訊號。再經由 CPLD 37的控制可將數位音源訊號傳送到第一差動訊號接 收/傳送器32轉換並將數位音源訊號轉換成音源差動訊 唬，透過纜線35傳送該音源差動訊號至第二差動訊號接收 /傳送器22 ;再透過主控CPLD 27的控制經由主控音源轉 12 M299898 換為26轉換成音源類比訊號輸出到主控音源介面μ (例如 更連接一音響裝置像是喇σΑ 55 )。 -此外本創作之再一實施例係一種數位顯示器52，其 ^ 5液日日面板520 (圖3所示）及一可遠距離接收差動 數位訊號模組22 (詳細技術已如上所述）。換言之，在本 Ί作之貝鉍例中，可遠距離接收差動數位訊號模組D係可 内建於數位顯示器14，如此一來即可大幅降低成本。 _ 耗本創作已以較佳實施例揭露如上，然其並非用以 限^創作，任何熟習此技藝者，在不脫離本創作之精神 $乾圍内，當可作些許之更動與潤飾，因此本創作之保護 ：乾圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1為白知可通距離傳送/接收差動數位訊號系統之架構 示意圖。 φ圖2為依據本創作之可遠距離接收差動數位訊號模組，顯 示其方塊示意圖。 ㈤係依據六員比/數位面板訊號轉換模組，暴頁示其方塊示 意圖。 Ζ為依據本創作之可遠距離傳送/接收差動數位訊號系 、、先’顯示其方塊示意圖。 Ζ係依據本創作之可遠距離傳送/接收差動數位訊號系 、、先，顯示其與電腦主機及顯示器之間的架構示意圖。 M299898 【主要元件符號 電腦主機11、51 遠端解壓縮裝置 纜線15、35 滑鼠56 、 59 說明】 區 13 顯 鍵 域端壓縮裝置12 示器14 、 52 盤、57 、 58 可遠距離傳送/接收差動數位訊號系統4 可运距離接收差動數位訊號模組2〇 可运距離傳送差動數位訊號模組30 第一差動訊號接收/傳送器32 第二差動訊號接收/傳送器22 數位/類比轉換器220 類比/數位面板訊號轉換模組40 主控輸入介面21a、21b 鍵盤介面31a 處理器33 φ 音源介面35 DA轉換器26 MCU 42 滑鼠介面31b VGA介面34 主控音源介面25 縮放器41 OSD43 控制板522 口刺口八55 CPLD37 、27 液晶面板520 AD轉換器36 螢幕差動訊號接收/傳送器322 鍵盤滑鼠差動訊號接收/傳送器321 14M299898 VIII. New description: [New technical field] This system is about a kind of long-distance receiving differential digital signal mode, and can meet the distance transmission/reception differential digital signal system and its digital display. . [Prior Art] Generally. The distance between the host computer and the monitor to which it is connected is not too far, but 'in a hypermarket or a large company, the host computer in some locations is usually not the same as the monitor. The place. For the old >, listening to < + #, the distance between the fine main money and the monitor connected to it may even be as long as tens or ～, 200 meters away. ...the transmission of computer host signals, especially the video signals commonly used in video, are often affected (attenuated) by long distances. Therefore, various long-distance transmission cables such as CAT5 cables have been developed on the market. Please refer to Figure Bu, the special first system #j use distance transmission line 15 is used to connect - computer host 11 and a remote display 14. Usually, the computer master needs to use a zone-side (1〇cal) compression device to convert and digitize the digital signal, and the wide-distance transmission of the compressed signal by the long-distance transmission, and also needs to utilize the remote-end decompression device: 13 receiving compression The digitized signal is decompressed and then transmitted at the end screen 14. Thereby, due to the long-distance transmission cable, (4), for example, (10), and the line-of-line transmission method of the differential transmission signal, the video signal is less susceptible to impact, and the display quality is ensured. M299898 [New Content] This book provides a long-distance receiving differential digital signal module, a distance transmitting/receiving differential digital signal system and its digital display. One of the aims of the present invention is to provide a cost-effective long-distance receiving differential digital signal module and its long-distance transmission/reception differential digital signal system. Another object of the present invention is to provide a digital display that can directly receive signals from a computer host at a regional end other than a long distance. One embodiment of the present invention is a remotely received differential digital signal module. The remotely receivable differential digital signal module includes a differential signal receiving/transmitting device and a analog/digital panel signal conversion module. The remotely received differential digital signal module can receive the video differential digital signal from a region and process the video differential digital signal for output to a liquid crystal panel. The differential signal receiver/transmitter is configured to receive the video differential digital signal, and the differential sigma receiver/transmitter further includes a digital/analog conversion state. The digital/analog converter converts the video differential digital signal into a visual analog signal. The analog/digital panel signal conversion module converts the video analog signal into a video digital signal for output to the LCD surface. Furthermore, the analog/digital panel signal conversion module further includes a scalar, a microcontroller and an on-screen display controller (OSD). The scaler converts the video analog signal into the video digit A "5 tiger 蚪 allows the video digital signal to conform to the specifications of the liquid crystal panel. The micro control system is electrically connected to the zoom state, and the screen display controller is electrically connected to the M299898 scaler and the microcontroller, thereby controlling the display signal of the liquid crystal panel. In the present embodiment, the remotely received differential digital signal module further includes at least a master input interface, wherein the master input interface can be electrically connected to a key tray, such that the user A control signal can be input to the differential signal receiver/transmitter through the keyboard or the mouse. In addition, the differential signal receiving/transmitting device can further receive the sound source differential digital signal from a regional end. The remotely received differential digital signal module includes a programmable logic device (CPLD), a master audio source signal converter, and a master audio source interface, and the differential signal receiving/transmitting device can transmit the Q> LD (4), the master control audio source (four) converter converts the source differential digital signal into a sound source analog signal and outputs to the master sound source interface. Another embodiment of the present invention is a remotely transmittable/receiving differential digit. fiH first 'the system can receive and process the signal to output to the liquid aa panel. It can transmit/receive the differential digital signal system remotely. The system includes a remote digital signal transmitting differential signal module and a long distance receiving differential digital signal. Module and a cable. The remotely transmit differential digital signal module includes a first differential signal receiving/transmitting||. The _differential signal receiving/transmitting device converts the VGA signal into a video differential digital signal. The distance-receiving differential digital signal module includes a second differential signal receiving/transmitter and a analog/digital panel signal conversion module. The second differential signal receiving/transmitter receives the video differential digital signal. Moreover, the M299898-second differential signal receiving/transmitting device comprises a digital/analog converter, and the digital/analog converter can transmit the phase to the red Thai, . . . , σ j will turn the differential digital signal into For a video analog 颏 颏 / / digital panel signal conversion module can convert the video analog signal into a video digital signal for output to the LCD panel. The cable is respectively connected to the remotely transmit differential digital signal module and the remotely receivable differential digital signal module to transmit the video differential digital signal to the second differential signal receiving/transmitting device. Furthermore, still another embodiment of the present invention is a digital display comprising a liquid crystal panel and a remotely received differential digital signal module. In other words, in the embodiment of the present invention, the differential digital signal module can be received at a long distance. “The system can be built in the digital display, and the π can greatly reduce the cost. [Embodiment] Referring to FIG. 2 in June, A block diagram of a remotely received differential digital signal module in one embodiment of the present invention. The differential digital signal can be received over a long distance. The module 20 includes a differential signal receiving/transmitting device 22 and an analog/digital panel signal. The conversion module 40. The differential nickname receiver/transmitter 22 is configured to receive the video differential digital signal. For example, the video differential digital signal can be a video differential digital signal from a region (described in FIG. 4 below). The differential signal receiving/transmitting device 22 further includes a digital/analog converter 220. The digital/analog ratio is converted to 220 to convert the video differential digital signal into a video analog signal. The analog/digital panel signal conversion module 40 The video analog signal is converted into a video digital signal (such as an LVDS signal) for output to the liquid crystal panel (as shown in Figure 8 M299898 • 3, no). - In this embodiment, it can be far The receiving differential digital signal module 2 further includes at least one main control input interface 21a, 2 ratio, wherein the main control input interface 21a, 21b is compatible with a keyboard or a mouse (such as the keyboard 58 shown in FIG. 5). It is electrically connected to the alpha milk 59), so that the user can input a control signal to the differential signal receiving/transmitting device 22 through the keyboard % or the mouse 59. In addition, the differential signal receiving/transmitting device 22 can receive more from the The sound source differential digital signal at the regional end (described in detail in Figure 4 below). The remotely received differential digital signal module 2 includes a programmable logic device (CPLD) and a master audio source signal converter. And a master audio source interface 25 and the differential signal receiving/transmitting device 22 can convert the sound source differential digital signal into a sound source digital signal. The master sound source signal converter 26 can control the sound source digital signal through the control of the CPLD. Converted to a source analog signal and output to the master tone source interface 25. Therefore, when the master source interface 25 is connected to an audio device (for example, as shown by @5, 85), the source can be compared to the φ signal. Output to the acoustic device 55. Further, referring to FIG. 3, the analog/digital panel signal conversion module 40 further includes a scalar 41, a microcontroller (such as an MCU) 42 and a screen display controller (〇SD) 43. The scaler 41 converts the video analog signal into the video digital signal to make the video digital signal conform to the specifications of the liquid crystal panel 52. The microcontroller 42 is electrically connected to the scaler 41, and the screen display controller is guilty. The display unit is electrically connected to the scaler 41 and the microcontroller 42 to control the display signal of the liquid crystal panel 520. For example, the screen display controller 43 allows the M299898 to control the movement or brightness of the display surface. The microcontroller 42 can control the scaler 41 according to the liquid helium panel 520 to achieve an appropriate adjustment display signal. As is well known, the liquid crystal panel 52A usually requires a control panel 522 for control, such as angle control, and a power source and a backlight (not shown) to provide proper control of the liquid crystal panel 520. This is a technology, so it is not described here. Another embodiment of the present invention is a remote digital transmission/reception differential digital signal system. Please refer to FIG. 4 and FIG. 5 at the same time, which can be transmitted/connected at a long distance. The differential digital signal system 4 includes a remotely transmit differential digital signal module 3, a remotely received differential digital signal module 20, and A cable 35 〇. The remotely transmit differential digital signal module 30 includes a first differential signal receiver/transmitter 32. The first differential signal receiving/transmitting device % includes a keyboard mouse differential signal receiving/transmitting unit 321 and a screen differential signal receiving/transmitting unit 322. And the screen differential signal receiving/transmitting device 322 can convert the VGA signal into a video differential digital signal. In this example, the differential digital signal module 3 can be remotely transmitted, and further includes a processor 33, a programmable logic device (cpLD) 37, a V-}a interface: a keyboard interface 31a, and a mouse interface 3 ratio. The vga interface is electrically connected to the screen differential signal & / transmitter 322, whereby the VGA signal is transmitted to the first differential signal receiving/transmitting through the VGA interface 34. The remotely received differential digital signal module 2 includes a second differential signal receiving 7 transmitter 22 and an analog/digital panel signal conversion module ° 10 M299898 40. The remote receiving of the embodiment The differential digital signal module is substantially the same as the embodiment of the remotely receivable differential digital signal module 2 described in FIG. 2. However, due to the remote signal receiving/transmitting of the far end shown in FIG. Up to 22 can also transmit signals (such as the main control keyboard signal, the main control mouse signal or the main power supply nickname, etc.), and the regional signal differential signal receiving/transmitter 32 shown in FIG. Receiving the signal from the remote differential signal receiving/transmitting device 22. Therefore, in this embodiment The differential signal receiving/transmitting device at the regional end is referred to as a first differential signal receiving/transmitting device 32; and the differential differential receiving/transmitting device at the remote end is referred to as a second differential signal receiving/transmitting device. The difference between the 22nd differential semaphore receiving/transmitter 32 and the second differential signal receiving/transmitting 22 is that the first differential signal receiving/transmitting device 32 is mainly the transmission of the video differential digital signal at the regional end, and The second differential signal receiving/transmitting device 22 mainly receives the video differential digital signal. However, the second differential signal receiving/transmitting device 22 of the terminal has been described in detail in FIG. 2 and FIG. 3, so Then, the line 35 is connected to the remotely transmit differential digital signal module 3 and the remotely receivable differential digital signal module, so that the video and digital nicknames are transmitted to The second differential signal receiving/transmitting device. As is well known, the multi-view line 35 can be CAT5, CAT5e or CAT6 300^ which is 300 meters away. For example, please refer to FIG. 4 and FIG. 5 at the same time. The distance differential digital unit 3 is connected to a computer host 51. The computer host 5 The VGA: number of 1 can be transmitted to the first differential signal receiving/transmitting device 32 through the face 34 which can transmit the differential digital signal module 30 over a long distance. As described in M299898, the first differential signal is obtained. You / 7 will convert the VGA signal to the video differential digital signal by the receiver/transmitter 32, and transmit (4) two differential signals to receive/transmit the -22 to convert to a video digital signal (such as lvds signal) to the LCD panel. 520. Moreover, in the rut > [Tube example] the remote main control input interface 仏, 21b can be electrically connected with the keyboard 58 and the mouse 59, so that the user can input through the key i 58 or α 59 A control signal is sent to the differential signal receiver/transmitter 22. Moreover, the keyboard 57 and the mouse brother of the area end can also be connected to the key interface 12a and the mouse interface 31b, respectively. The first differential signal receiving/transmitting device 22 of the eight-way transmission can transmit the control signals of the main control input surface 21a, 21b back to the first differential signal receiving/transmitting device 32 at the regional end, and then pass to the processing. When the user operates the keyboard 57 and the mouse 56 of the area ^, the input keyboard signal/mouse signal can be transmitted to the processing via the keyboard interface 31a and the mouse interface 3 of the area end. It can be used to judge and decide whether the keyboard 10 and the mouse 56 of the area end are still the keyboard % of the remote end and the outside of the mouse. In addition, the sound source signal of the area end is used to control the sound source interface of the preparation area end by using CPLd37. The received sound source signal can be converted into a digital sound source signal by the sound source converter 36 via the control of the CPLD 37. The digital sound source signal can be transmitted to the first differential signal receiving/transmitting unit 32 for conversion and the digital sound source through the control of the CPLD 37. The signal is converted into a sound source differential signal, and the sound source differential signal is transmitted through the cable 35 to the second differential signal receiving/transmitting device 22; and then controlled by the main control CPLD 27 via the main control sound source to turn 12 M299 898 is converted to 26 to be converted into a sound source analog signal output to the main control sound source interface μ (for example, more connected to an audio device such as La Α Α 55). - Further, another embodiment of the present invention is a digital display 52, which is 5 liquid days The day panel 520 (shown in Figure 3) and the remotely receive differential digital signal module 22 (the detailed technique has been described above). In other words, in the case of the present invention, the differential digital position can be received at a long distance. The signal module D can be built in the digital display 14 so that the cost can be greatly reduced. _ The present invention has been disclosed in the preferred embodiment as above, but it is not intended to limit the creation, anyone skilled in the art, Without departing from the spirit of this creation, it is possible to make some changes and refinements. Therefore, the protection of this creation: the definition of the scope of the patent application attached to the stipulations of the stipulations shall prevail. [Simplified illustration] 1 is a schematic diagram of the structure of the transmission and reception differential digital signal system of Baizhiketong. φFig. 2 is a block diagram showing the remote digital signal receiving module according to the present invention, which is based on the six-member ratio/ Digital panel The conversion module, the violent page shows its block diagram. Ζ It is based on the creation of the long-distance transmission/reception of the differential digital signal system, and the first 'display its block diagram. ΖThe system can transmit/receive the long distance according to the creation. The digital signal system, first, shows the architecture diagram between it and the computer host and the display. M299898 [Main component symbol computer host 11, 51 remote decompression device cable 15, 35 mouse 56, 59 Description] Area 13 Display key field end compression device 12 Display 14, 52, 57, 58 can transmit/receive differential digital signal system 4 distance can receive differential digital signal module 2 〇 transportable distance differential digital signal mode Group 30 first differential signal receiving/transmitting device 32 second differential signal receiving/transmitting device 22 digital/analog converter 220 analog/digital panel signal conversion module 40 main control input interface 21a, 21b keyboard interface 31a processor 33 φ Audio interface 35 DA converter 26 MCU 42 Mouse interface 31b VGA interface 34 Master audio interface 25 Scaler 41 OSD43 Control board 522 Port spur eight 55 CPLD37, 27 LCD panel 520 AD conversion Screen 36 receives the differential signal / transmitter 322 receives the differential signal Keyboard Mouse / conveyor 32114