TWI729507B - Switch device and switch system and the methods thereof - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
Abstract
Description
本發明係關於一種多畫面切換系統、切換裝置及操作方法;具體而言,本發明係關於用於控制多主機的多畫面切換系統、切換裝置及操作方法。The present invention relates to a multi-screen switching system, a switching device and an operating method; specifically, the present invention relates to a multi-screen switching system, a switching device and an operating method for controlling multiple hosts.
多電腦切換器可以使用戶透過一組鍵盤、螢幕和滑鼠控制多台電腦。一般而言,在螢幕上顯示多個受控電腦的輸出畫面僅受限於特定的顯示方式。例如,以平均分割畫面大小呈現多路畫面。當使用者欲改變顯示方式,需額外的硬體(例如按鈕)來控制。另外,改變顯示方式後對滑鼠游標的位置可能產生誤差。因此現有的多電腦切換器仍有待改進。The multi-computer switcher allows users to control multiple computers through a set of keyboards, screens, and mice. Generally speaking, displaying the output images of multiple controlled computers on the screen is only limited to a specific display method. For example, multi-channel pictures are presented with an evenly divided picture size. When the user wants to change the display mode, additional hardware (such as buttons) is needed to control it. In addition, changing the display mode may cause errors in the position of the mouse cursor. Therefore, the existing multiple computer switches still need to be improved.
當螢幕上所顯示多個受控電腦的輸出畫面有所重疊時,此時操作者無法精準地使用滑鼠控制受控電腦,因此針對畫面重疊的切換裝置及方法仍有待改進。When the output screens of multiple controlled computers displayed on the screen overlap, the operator cannot accurately control the controlled computer with the mouse at this time. Therefore, the switching device and method for overlapping screens still need to be improved.
本發明提供一種用以多畫面切換的切換裝置及其操作方法,並提出一種適用多主機的切換系統及操作方法,可提高操作多主機的方便性與指標裝置操作的精準度。The present invention provides a switching device for multi-screen switching and an operating method thereof, and proposes a switching system and an operating method suitable for multiple hosts, which can improve the convenience of operating multiple hosts and the accuracy of operation of the indicator device.
本發明一實施例提供切換裝置,切換裝置包含第一連接介面、第二連接介面、影像輸出界面、控制模組以及處理模組。處理模組與第一連接介面、第二連接介面、影像輸出介面以及控制模組電性連接。第一連接介面接收第一影像。第二連接介面接收第二影像。影像輸出介面輸出整合影像。控制模組接收包含位置資訊的控制訊號。處理模組根據第一影像以及第二影像產生整合影像。整合影像包括對應於第一影像之第一子畫面及對應於第二影像之第二子畫面。第一子畫面包含第一深度值。第二子畫面包含第二深度值。其中,當第一子畫面的部分與第二子畫面的部分重疊而產生重疊區域,且位置資訊落入重疊區域內時,則處理模組參考第一深度值及第二深度值決定將控制訊號自第一連接介面與第二連接介面中之一者輸出。An embodiment of the present invention provides a switching device. The switching device includes a first connection interface, a second connection interface, an image output interface, a control module, and a processing module. The processing module is electrically connected with the first connection interface, the second connection interface, the image output interface and the control module. The first connection interface receives the first image. The second connection interface receives the second image. The image output interface outputs integrated images. The control module receives a control signal containing position information. The processing module generates an integrated image according to the first image and the second image. The integrated image includes a first sub-picture corresponding to the first image and a second sub-picture corresponding to the second image. The first sub-picture contains the first depth value. The second sub-picture contains the second depth value. Wherein, when a part of the first sub-picture overlaps with a part of the second sub-picture to generate an overlap area, and the position information falls within the overlap area, the processing module refers to the first depth value and the second depth value to determine the control signal Output from one of the first connection interface and the second connection interface.
本發明一實施例中提供一種切換裝置的控制方法,包含下列步驟:自第一連接介面接收第一影像。自第二連接介面接收第二影像。接收控制訊號,控制訊號包含位置資訊。根據第一影像及第二影像產生整合影像,整合影像包括對應於第一影像之第一子畫面及對應於第二影像之第二子畫面。第一子畫面包含第一深度值。第二子畫面包含第二深度值。輸出該整合影像。以及,於位置資訊落入重疊區域內時,根據第一深度值及第二深度值決定將控制訊號自第一連接介面與第二連接介面中之一者輸出。其中,第一子畫面的部分重疊於第二子畫面的部分而為重疊區域。An embodiment of the present invention provides a method for controlling a switching device, which includes the following steps: receiving a first image from a first connection interface. The second image is received from the second connection interface. Receive the control signal, the control signal contains location information. An integrated image is generated based on the first image and the second image, and the integrated image includes a first sub-frame corresponding to the first image and a second sub-frame corresponding to the second image. The first sub-picture contains the first depth value. The second sub-picture contains the second depth value. The integrated image is output. And, when the position information falls within the overlapping area, the control signal is determined to be output from one of the first connection interface and the second connection interface according to the first depth value and the second depth value. Wherein, the part of the first sub-picture overlaps the part of the second sub-picture and is an overlapping area.
本發明一實施例中提供一種切換系統,包含切換裝置、第一主機、第二主機、指標裝置以及顯示裝置。第一主機、第二主機、指標裝置以及顯示裝置連接切換裝置。第一主機輸出第一影像至切換裝置。第二主機輸出第二影像至切換裝置。其中切換裝置根據第一影像及第二影像產生整合影像。指標裝置輸出控制訊號至切換裝置,控制訊號包含位置資訊。顯示裝置自切換裝置接收並顯示整合影像。其中,整合影像包括對應於第一影像之第一子畫面及對應於第二影像之第二子畫面。第一子畫面包含第一深度值。第二子畫面包含第二深度值。當第一子畫面的部分與第二子畫面的部分重疊而產生有重疊區域,且位置資訊落入重疊區域內時,則切換裝置參考第一深度值及第二深度值決定將指標裝置之控制訊號輸出至第一主機與第二主機中之一者。An embodiment of the present invention provides a switching system, which includes a switching device, a first host, a second host, a pointing device, and a display device. The first host, the second host, the pointing device, and the display device are connected to the switching device. The first host outputs the first image to the switching device. The second host outputs the second image to the switching device. The switching device generates an integrated image according to the first image and the second image. The pointing device outputs a control signal to the switching device, and the control signal includes position information. The display device receives and displays the integrated image from the switching device. Wherein, the integrated image includes a first sub-picture corresponding to the first image and a second sub-picture corresponding to the second image. The first sub-picture contains the first depth value. The second sub-picture contains the second depth value. When the part of the first sub-picture overlaps with the part of the second sub-picture, an overlap area is generated, and the position information falls within the overlap area, the switching device refers to the first depth value and the second depth value to determine the control of the pointing device The signal is output to one of the first host and the second host.
本發明一實施例中提供一種切換系統操作之方法,包含下列步驟:以切換裝置連接第一主機並自第一主機接收第一影像。以切換裝置連接第二主機並自第二主機接收第二影像。以切換裝置連接指標裝置並自指標裝置接收控制訊號,控制訊號包含位置資訊。以切換裝置根據第一影像及第二視影像產生整合影像,整合影像包括對應於第一影像之第一子畫面及對應於第二影像之第二子畫面。第一子畫面包含第一深度值。第二子畫面包含第二深度值。以切換裝置輸出整合影像至顯示裝置;以及當第一子畫面的部分與第二子畫面的部分重疊而產生有重疊區域,且位置資訊落入重疊區域內時,以切換裝置參考第一深度值及第二深度值決定將控制訊號輸出至第一主機與第二主機中之一者。An embodiment of the present invention provides a method of switching system operation, including the following steps: connecting a first host with a switching device and receiving a first image from the first host. The switching device is used to connect to the second host and receive the second image from the second host. Connect the pointing device with the switching device and receive the control signal from the pointing device. The control signal includes position information. The switching device generates an integrated image according to the first image and the second video image, and the integrated image includes a first sub-screen corresponding to the first image and a second sub-screen corresponding to the second image. The first sub-picture contains the first depth value. The second sub-picture contains the second depth value. The switching device is used to output the integrated image to the display device; and when the part of the first sub-picture overlaps with the part of the second sub-picture, an overlapping area is generated, and the position information falls within the overlapping area, the switching device refers to the first depth value And the second depth value determines which of the control signal is output to the first host and the second host.
如上所述,本發明使用切換裝置分配不同深度值至從不同主機接收而來的影像,以產生整合影像輸出至顯示裝置並顯示,透過指標裝置可操控不同主機,如此提高操作多主機的方便性與指標裝置操作的精準度。As described above, the present invention uses a switching device to assign different depth values to images received from different hosts to generate an integrated image that is output to the display device and displayed. Different hosts can be controlled through the pointing device, thus improving the convenience of operating multiple hosts. The accuracy of the operation with the pointing device.
圖1為本發明多畫面系統1之一實施例示意圖。如圖1所示,多畫面系統1包含顯示裝置10、多畫面操作裝置20、指標裝置30、主機(40A,40B,40C,40D)。多畫面操作裝置20連接顯示裝置10。指標裝置30連接多畫面操作裝置20,並傳送位置資訊。多畫面操作裝置20可包含但不限於多電腦切換器,指標裝置30可為滑鼠、觸控板,或是軌跡球等等。主機(40A,40B,40C,40D)分別連接多畫面操作裝置20。主機(40A,40B,40C,40D)分別輸出視訊資料並經由多畫面操作裝置20於顯示裝置10產生輸出畫面。換言之,輸出畫面包含來自不同主機所傳送的畫面。此外,主機數量在使用上並不受限制,本發明中僅以四台或兩台的使用情境做例示性說明。FIG. 1 is a schematic diagram of an embodiment of a
多畫面操作裝置20根據位置資訊,得到位置資訊對應於輸出畫面中的初始位置。所述初始位置是指游標相應於整個輸出畫面之一絕對座標。根據初始位置及不同主機所傳送畫面之深度值產生絕對位置,並傳送至主機40A、主機40B、主機40C,或是主機40D。所述深度值是指對應不同主機的畫面的層次,不同深度值的畫面在輸出畫面中呈現交疊顯示的狀態。換言之,不同深度值的畫面相對於使用者沿視線方向上具有不同的距離。絕對位置是指游標相應於某一畫面(例如主機40A所傳送的畫面)之另一絕對座標。例如,根據深度值分別判斷不同主機傳送的畫面與初始位置的關係,進而得到游標相應於某一畫面(例如主機40A所傳送的畫面)的座標。藉此,經由轉換絕對座標所得到的絕對位置可提高多畫面操作裝置對於指標裝置的位置的準確性,避免對指標裝置30的位置判斷產生誤差,並提高作業效率。The
圖2為多畫面系統1A之另一實施例示意圖。以圖2為例,圖2所繪示之多畫面系統1A可適用於圖1所示的多畫面系統1。如圖2所示,多畫面操作裝置20包含擷取模組210、處理模組220、控制模組230、轉換模組240。擷取模組210擷取來自主機(40A,40B,40C,40D)的視訊資料並經由處理模組220於顯示裝置10產生輸出畫面。控制模組230接收來自指標裝置30的位置資訊,經處理模組220於輸出畫面中顯示。處理模組220根據位置資訊,得到位置資訊對應於輸出畫面中的初始位置。處理模組220根據深度值分別判斷不同主機(40A,40B,40C,40D)傳送的畫面與初始位置的關係,由轉換模組240產生絕對位置並傳送至對應的主機。藉此,經由將指標裝置30的位置資訊轉換為絕對座標所得到的絕對位置可提高多畫面操作裝置20對於指標裝置30的位置的準確性。FIG. 2 is a schematic diagram of another embodiment of the multi-picture system 1A. Taking FIG. 2 as an example, the multi-screen system 1A shown in FIG. 2 can be applied to the
圖3為操作方法之一實施例流程圖。如圖3所示,用於多畫面系統的操作方法包含步驟S10~S50。在步驟S10,以多畫面操作裝置接收來自指標裝置之位置資訊。在步驟S20,以多畫面操作裝置分別接收來自不同主機之視訊資料。在步驟S30,相應於視訊資料以於顯示裝置產生包含不同主機所傳送的畫面之輸出畫面。在步驟S40,根據位置資訊得到初始位置。在步驟S50,根據初始位置及各畫面之深度值,產生絕對位置並傳送至主機(40A,40B,40C,40D)其中之一。Fig. 3 is a flowchart of an embodiment of the operation method. As shown in Fig. 3, the operation method for the multi-screen system includes steps S10 to S50. In step S10, the multi-screen operation device is used to receive the position information from the pointing device. In step S20, the multi-screen operating device is used to respectively receive video data from different hosts. In step S30, corresponding to the video data, an output screen containing the screens transmitted by different hosts is generated on the display device. In step S40, the initial position is obtained based on the position information. In step S50, according to the initial position and the depth value of each screen, an absolute position is generated and transmitted to one of the hosts (40A, 40B, 40C, 40D).
圖4A及圖4B為輸出畫面F之一實施例示意圖。不同主機分別輸出視訊資料並經由多畫面操作裝置於顯示裝置產生輸出畫面F。如圖4A所示,輸出畫面F中包含來自不同主機傳送的視訊資料所產生的畫面(f1,f2,f3,f4)。例如,畫面f1來自主機40A(參考圖1),畫面f2來自主機40B,畫面f3來自主機40C,畫面f4來自主機40D。各主機傳送的畫面可具有不同深度值。例如,以各畫面(f1,f2,f3,f4)左上角定義各畫面的位置,畫面f1左上角具有P1(X1
,Y1
,Z1
),畫面f2左上角具有P2(X2
,Y2
,Z2
),依此類推。其中,前述Z1
與Z2
分別為畫面f1和畫面f2的深度值。在圖4A的例子中,畫面f1位於較底層的位置,具有較大的深度值。換言之,對於畫面f1和畫面f2,具有Z1
大於Z2
的關係。此外,可根據深度值決定欲檢測畫面的順序,以深度值最小者為優先檢測的畫面,在圖4A及4B的例子中,會優先檢測到畫面f2。4A and 4B are schematic diagrams of an embodiment of the output screen F. Different hosts respectively output video data and generate an output screen F on the display device through the multi-screen operating device. As shown in FIG. 4A, the output screen F includes images (f1, f2, f3, f4) generated by video data sent from different hosts. For example, the picture f1 is from the
類似地,對於整體畫面(及輸出畫面F)亦可以輸出畫面F左上角定義輸出畫面F的位置。例如,輸出畫面F左上角具有P0(X0 ,Y0 ,Z0 )。另外,多畫面操作裝置接收來自指標裝置之位置資訊,根據位置資訊得到初始位置,而在輸出畫面中呈現游標c。初始位置為游標c相應於輸出畫面F之絕對座標,例如,根據位置資訊以及P0得到初始位置具有(XM ,YM )。Similarly, for the overall picture (and the output picture F), the position of the output picture F can also be defined in the upper left corner of the output picture F. For example, the upper left corner of the output screen F has P0 (X 0 , Y 0 , Z 0 ). In addition, the multi-screen operating device receives the position information from the pointing device, obtains the initial position according to the position information, and presents the cursor c in the output screen. The initial position is the absolute coordinate of the cursor c corresponding to the output screen F. For example, the initial position obtained according to the position information and P0 has (X M , Y M ).
如圖4B所示,根據深度值分別判斷不同主機傳送的畫面(f1,f2,f3,f4)與初始位置的關係,進而得到游標c相應於某一畫面的座標(即絕對位置)。在圖4B的例子中,游標c位在畫面f1與畫面f2交疊的位置,藉由各畫面的深度值可區分出游標在畫面f2進行操作,因此根據初始位置及P2得到絕對位置具有(XMR ,YMR )。藉此,經由轉換絕對座標所得到的絕對位置與游標c所操作的畫面有關,可提高多畫面操作裝置對於指標裝置的位置的準確性。As shown in FIG. 4B, the relationship between the pictures (f1, f2, f3, and f4) transmitted by different hosts and the initial position is determined according to the depth value, and then the coordinates (ie absolute position) of the cursor c corresponding to a certain picture are obtained. In the example in Figure 4B, the cursor c is at the position where the screen f1 and the screen f2 overlap. The depth value of each screen can distinguish the cursor to operate on the screen f2. Therefore, the absolute position obtained according to the initial position and P2 has (X MR ,Y MR ). In this way, the absolute position obtained by converting the absolute coordinates is related to the screen operated by the cursor c, which can improve the accuracy of the position of the pointing device by the multi-screen operating device.
圖5為操作方法之另一實施例流程圖。如圖5所示,用於多畫面系統的操作方法包含步驟S10~S58。其中,步驟S10至步驟S40已如前述,以下針對差異部分進行說明。在步驟S52,根據深度值依序檢測初始位置與畫面之重疊關係。在步驟S54,判斷游標所位於的畫面區域。當判斷游標出現在對應某一主機所輸出的畫面中,則決定該畫面為目標畫面(步驟S56);反之,當判斷游標不在對應某一主機所輸出的畫面,則接著判斷游標與另一主機所輸出的畫面的關係。在步驟S58,根據目標畫面將初始位置轉換為絕對位置。Fig. 5 is a flowchart of another embodiment of the operation method. As shown in Fig. 5, the operation method for the multi-screen system includes steps S10 to S58. Among them, step S10 to step S40 have been as described above, and the differences will be described below. In step S52, the overlap relationship between the initial position and the frame is sequentially detected according to the depth value. In step S54, the screen area where the cursor is located is determined. When it is judged that the cursor appears in the screen output by a certain host, it is determined that the screen is the target screen (step S56); on the contrary, when it is judged that the cursor does not correspond to the screen output by a certain host, then it is judged that the cursor and another host The relationship of the output screen. In step S58, the initial position is converted into an absolute position according to the target picture.
圖6為輸出畫面F之另一實施例示意圖。不同主機分別輸出視訊資料並經由多畫面操作裝置於顯示裝置產生輸出畫面F。如圖6所示,輸出畫面F中包含來自不同主機傳送的視訊資料所產生的畫面(f1,f2)。例如,畫面f1來自主機40A(請參考圖1),而畫面f2來自主機40B。畫面f2部分疊置於畫面f1上。各主機傳送的畫面(f1,f2)可具有不同寬度值、高度值,以及深度值。例如,以各畫面左上角定義各畫面的位置,畫面f1左上角具有P1(W1
,H1
,X1
,Y1
,Z1
),畫面f2左上角具有P2(W2
,H2
,X2
,Y2
,Z2
)。其中,W1
與W2
分別為畫面f1和畫面f2的寬度值。H1
與H2
分別為畫面f1和畫面f2的高度值。Z1
與Z2
分別為畫面f1和畫面f2的深度值。FIG. 6 is a schematic diagram of another embodiment of the output screen F. Different hosts respectively output video data and generate an output screen F on the display device through the multi-screen operating device. As shown in FIG. 6, the output frame F includes frames (f1, f2) generated by video data sent from different hosts. For example, the picture f1 is from the
前述寬度值和高度值可共同定義畫面的畫面區域。舉例而言,畫面f1具有寬度值W1 及高度值H1 所形成之畫面區域,畫面f2具有寬度值W2 及高度值H2 所形成之另一畫面區域。進一步而言,根據各畫面左上角的水平位置值(如X1 )、垂直位置值(如Y1 )、寬度值(如W1 )以及高度值(如H1 )可界定畫面區域的位置及大小。另一方面,根據深度值決定欲檢測畫面的順序。例如,以深度值最小者為優先檢測的畫面。在圖6的例子中,先檢測初始位置與畫面f2之重疊關係,再檢測初始位置與畫面f1之重疊關係。The aforementioned width value and height value can jointly define the screen area of the screen. For example, the screen having a width value f1 W 1 and a height H of the formed value of the screen area 1, the picture f2 value having another screen region width W 2 and a height H 2 is formed of values. Furthermore, according to the horizontal position value (such as X 1 ), vertical position value (such as Y 1 ), width value (such as W 1 ), and height value (such as H 1 ) of the upper left corner of each screen, the position and size. On the other hand, the order of the images to be detected is determined according to the depth value. For example, the screen with the smallest depth value is the first to be detected. In the example of FIG. 6, the overlap relationship between the initial position and the frame f2 is detected first, and then the overlap relationship between the initial position and the frame f1 is detected.
如圖6所示,判斷游標c不在畫面f2中,接著判斷游標c出現在畫面f1中,故畫面f1為目標畫面。需補充的是,當多畫面操作裝置判斷初始位置與目標畫面彼此重疊後,多畫面操作裝置停止檢測,並接續位置轉換的步驟。如圖6所示,游標c在畫面f1進行操作,因此根據初始位置及P1得到絕對位置。藉此,經由轉換絕對座標所得到的絕對位置與游標c所操作的畫面有關,可提高多畫面操作裝置對於指標裝置的位置的準確性。As shown in FIG. 6, it is judged that the cursor c is not in the screen f2, and then it is judged that the cursor c appears in the screen f1, so the screen f1 is the target screen. It should be added that when the multi-screen operating device determines that the initial position and the target screen overlap each other, the multi-screen operating device stops the detection and continues the step of position conversion. As shown in Figure 6, the cursor c is operated on the screen f1, so the absolute position is obtained according to the initial position and P1. In this way, the absolute position obtained by converting the absolute coordinates is related to the screen operated by the cursor c, which can improve the accuracy of the position of the pointing device by the multi-screen operating device.
圖7A及圖7B為改變畫面排列之一實施例示意圖。前述操作方法可進一步根據絕對位置將不同主機傳送的視訊資料所產生的畫面作不同的排列組合。如圖7A所示,游標c在畫面f1進行操作,多畫面操作裝置根據目標畫面(畫面f1)將初始位置轉換為絕對位置。如圖7B所示,多畫面操作裝置根據絕對位置變更畫面f1與畫面f2的排列,將游標c進行操作的畫面(畫面f1)顯示於最上層。藉此,利用絕對位置達成顯示畫面的切換,而不需額外增設硬體按鍵來控制,增加操作方便性。FIG. 7A and FIG. 7B are schematic diagrams of an embodiment of changing the picture arrangement. The aforementioned operation method can further arrange and combine the images generated by the video data transmitted by different hosts in different combinations according to the absolute position. As shown in FIG. 7A, the cursor c is operated on the screen f1, and the multi-screen operating device converts the initial position into an absolute position according to the target screen (screen f1). As shown in FIG. 7B, the multi-screen operating device changes the arrangement of the screen f1 and the screen f2 according to the absolute position, and displays the screen (screen f1) operated by the cursor c on the uppermost layer. In this way, the absolute position is used to achieve the switching of the display screen, without additional hardware buttons for control, and the operation convenience is increased.
多畫面系統1可為一種多電腦控制系統,包括顯示裝置10、控制裝置30、第一電腦40A、第二電腦40B以及多畫面操作裝置20。需注意的是,第一電腦40A及第二電腦40B僅為舉例,並非為了限制此多電腦裝置所包括的電腦數量,此多電腦系統可為複數電腦(例如40A,40B,40C,40D)。The
多畫面操作裝置20例如為一種切換裝置,其中擷取模組210具有第一、第二連接介面。第一連接介面及第二連接介面用以連接數個電腦(例如40A,40B,40C,40D)接收第一、第二影像資料。處理模組220具有第三連接介面及處理單元。第三連接介面用以連接顯示裝置10輸出一個輸出影像資料(例如F)。處理單元電性連接第一連接介面、第二連接介面以及第三連接介面,並用以根據數個影像資料產生輸出影像資料F,輸出影像資料對應的畫面包含第一子畫面(例如f1)以及第二子畫面(例如f2),第一子畫面f1對應第一影像資料,第二子畫面f2對應第二影像資料。其中,處理單元根據第一子畫面f1與第二子畫面f2的重疊關係決定第一子畫面f1與第二子畫面f2之重疊區域的畫面。需說明的是,此處第一、第二連接介面僅為說明,其連接電腦數量可為多個並不限於兩個。同理,其輸入的第一、第二影像資料及對應的第一、第二子畫面亦僅為說明,其數量可為多個並不限於兩個。再者,第一影像資料具有第一解析度資訊,第二影像資料具有第二解析度資訊。處理單元根據第一解析度資訊及第二解析度資訊計算組合畫面中第一子畫面f1及第二子畫面f2的相對大小。控制模組230連接處理模組220中的處理單元,當對應控制模組230的指標(例如c)位置位於第一子畫面f1未重疊於該第二子畫面f2的區域時,處理單元自第一連接介面輸出來自控制模組230的控制命令,當指標位置c位於第二子畫面f2未重疊於第一子畫面f1的區域時,處理單元自第二連接介面輸出來自控制模組230的控制命令。此外,若控制模組230的指標位置c位於第一子畫面f1與第二子畫面f2之重疊區域時,處理單元根據第一影像資料對應的第一圖層值(例如Z1
)及第二影像資料對應的第二圖層值(例如Z2
)決定自第一連接介面或第二連接介面輸出來自控制模組230的控制命令。The
輸出影像資料F包括第一子畫面邊界資訊、第一子畫面大小資訊(例如W1 ,H1 )、第二子畫面邊界資訊以及第二子畫面大小資訊(例如W2 ,H2 )。第一子畫面邊界資訊決定第一子畫面f1在輸出影像資料F所對應的畫面的邊界位置。第一子畫面大小資訊(W1 ,H1 ) 決定第一子畫面f1在輸出影像資料F所對應的畫面中大小。第二子畫面邊界資訊決定第二子畫面f2在輸出影像資料F所對應的畫面的邊界位置。第二子畫面大小資訊(W2 ,H2 ) 決定第二子畫面f2在輸出影像資料F所對應的畫面中的大小。The output image data F includes first sub-picture boundary information, first sub-picture size information (for example, W 1 , H 1 ), second sub-picture boundary information, and second sub-picture size information (for example, W 2 , H 2 ). The first sub-picture boundary information determines the boundary position of the first sub-picture f1 on the picture corresponding to the output image data F. The first sub-picture size information (W 1 , H 1 ) determines the size of the first sub-picture f1 in the picture corresponding to the output image data F. The second sub-picture boundary information determines the boundary position of the second sub-picture f2 in the picture corresponding to the output image data F. The second sub-picture size information (W 2 , H 2 ) determines the size of the second sub-picture f2 in the picture corresponding to the output image data F.
圖8說明多畫面操作裝置20為切換裝置的另一實施例。請參照圖8,用於進行多畫面切換的切換裝置800包含第一連接介面810、第二連接介面820、影像輸出介面840、控制模組830以及處理模組850。第一連接介面810連接至第一主機40A。第二連接介面820連接至第二主機40B。主機的類型例如個人電腦、平板電腦或筆記型電腦等裝置但不限於此。第一連接介面810從第一主機40A接收第一影像F40A。第二連接介面820從第二主機40B接收第二影像F40B。第一影像F40A及第二影像F40B可以是其對應主機40A、40B的桌面或執行中的程式介面,但不限於此。影像輸出介面840可以連接例如螢幕、投影機等顯示裝置,並輸出整合影像F至顯示裝置10顯示。FIG. 8 illustrates another embodiment in which the
其中,對於第一影像F40A、第二影像F40B以及整合影像F而言,影像之定義可為影像型態,例如為顯示裝置上所呈現之影像畫面。另一方面,影像之定義亦可為資料型態,例如經由傳輸介面傳輸時或提供給顯示裝置進行顯示的影像資料或參數,例如影片圖行陣列(VGA),但不限於此。Among them, for the first image F40A, the second image F40B, and the integrated image F, the image can be defined as an image type, for example, an image frame presented on a display device. On the other hand, the definition of an image can also be a data type, such as image data or parameters that are transmitted via a transmission interface or provided to a display device for display, such as a video image array (VGA), but it is not limited to this.
此外,本實施例係以切換裝置800與兩台主機連接之狀況進行說明,但在不同實施例中切換裝置800亦可以包含更多組的連接介面與更多台的主機連接,例如三個連接介面分別對應三台主機,但不以此數量為限。In addition, in this embodiment, the
控制模組830可以連接指標裝置30例如滑鼠、軌跡球、觸控板或手勢辨識輸入裝置等,但不限於此。控制模組830並自指標裝置30接收控制訊號,控制訊號例如點擊、拖曳等操作。控制訊號包含位置資訊,此位置資訊可以例如由指標裝置30實體位置的變動量來產生,但不限於此。在不同實施例中,位置資訊亦可以例如由手勢辨識輸入裝置以影像或其他偵測方式來感應使用者之手勢位置而產生。The
處理模組850例如微處理器(MCU)、現場可程式化邏輯閘陣列(FPGA)或CPU但不限於此。處理模組850與第一連接介面810、第二連接介面820、影像輸出介面840以及控制模組850電性連接,處理模組850根據第一影像F40A以及第二影像F40B產生整合影像F。The
需說明的是,本實施例中僅以兩台的使用情境作為示例性說明。當有大於兩台主機的需求時,例如三台主機分別提供影像,可增加連接介面以連結至其他增加的主機。而後,處理模組850依由連接的三台主機所提供之影像產生整合影像F,但數量不以此為限。It should be noted that, in this embodiment, only two usage scenarios are taken as an exemplary description. When there is a demand for more than two hosts, for example, three hosts provide images separately, a connection interface can be added to connect to other additional hosts. Then, the
關於整合影像的處理,詳細來說,請參照圖8及圖9,處理模組850分別就接收而來的第一影像F40A以及第二影像F40B分配參數,例如深度值、大小或位置。處理模組850根據上述參數將第一影像F40A以及第二影像F40B進行整合,以產出整合影像F。所產生的整合影像F包括與第一影像F40A顯示內容相對應之第一子畫面f1及與第二影像F40B顯示內容相對應之第二子畫面f2。第一子畫面f1包含第一深度值Z1
,第二子畫面包含第二深度值Z2
。較佳而言,第一子畫面f1於整合影像F中的所呈現的尺寸與位置和處理模組850分配給第一影像F40A的大小及位置等參數有關。第二子畫面f2於整合影像F中的所呈現的尺寸與位置和處理模組850分配給第二影像F40B的大小及位置等參數有關。Regarding the processing of the integrated image, please refer to FIG. 8 and FIG. 9 in detail. The
在一實施例中,當第一子畫面f1與第二子畫面f2有重疊區域A時,將會依照第一深度值Z1
與第二深度值Z2
之排序決定重疊區域A顯示內容為第一子畫面f1或第二子畫面f2之內容。換言之,第一深度值Z1
與第二深度值Z2
擁有不同的優先度。舉例來說,當有重疊區域A產生時,若例如第一深度值Z1
的優先度優於第二深度值Z2
,則在顯示裝置10所顯示的整合影像F中,第一子畫面f1與第二子畫面f2的重疊區域A將會顯示第一子畫面f1在重疊區域A之顯示內容。而第二子畫面f2在重疊區域A之顯示內容將會被第一子畫面f1所遮蔽。此外,第一子畫面f1及第二子畫面f2依照第一深度值Z1
及第二深度值Z2
之優先順序排定在整合影像F中之疊合顯示排序。於一實施例中,當重疊區域A的顯示內容是對應於第一子畫面f1(亦即對應於第一影像)時,則處理模組850自第一連接介面810輸出控制訊號,相同的,當重疊區域A的顯示內容是對應於第二子畫面f2(亦即對應於第二影像)時,則處理模組850自第二連接介面820輸出控制訊號。In one embodiment, when the first sub-picture f1 and the second sub-picture f2 have an overlapping area A, the display content of the overlapping area A will be determined according to the order of the first depth value Z 1 and the second depth value Z 2 as the first The content of a sub-picture f1 or a second sub-picture f2. In other words, the first depth value Z 1 and the second depth value Z 2 have different priorities. For example, when an overlapping area A is generated, if the priority of the first depth value Z 1 is better than the second depth value Z 2 , then in the integrated image F displayed by the
需注意的是,當有三個以上子畫面之情形,處理模組850可分別分配深度值至對應影像,例如第一子畫面f1分配第一深度值Z1
,第二子畫面f2分配第二深度值Z2
,第三子畫面分配第三深度值(未示於圖上)。此三個子畫面依照第一至第三深度值之優先順序疊合。優先順序最高之對應子畫面於整合影像F的最上層,而優先順序最低之對應子畫面於整合影像F之最底層。It should be noted that when there are more than three sub-pictures, the
在一實施例中,第一深度值Z1 包含於第一子畫面f1中每一畫素點所具有的畫素點資料。第二深度值Z2 包含於第二子畫面f2中每一畫素點所具有的畫素點資料。詳細來說,深度值Z1 、Z2 可以包含於影像傳輸時的影像資料中,例如包含於影像的參數。以第一影像F40A為例,第一影像F40A於傳輸時屬於資料型態,此時與第一影像F40A對應之第一子畫面f1可包含複數個畫素點。例如第一子畫面f1解析度可為500 ppi (pixels per inch),表示於第一子畫面f1中每1英寸具有500個畫素點,但畫素點的數量與分配方式不限於此。In one embodiment, the first depth value Z 1 includes pixel point data of each pixel point in the first sub-frame f1. The second depth value Z 2 includes pixel point data of each pixel point in the second sub-frame f2. In detail, the depth values Z 1 and Z 2 may be included in the image data during image transmission, for example, included in the parameters of the image. Taking the first image F40A as an example, the first image F40A belongs to the data type when being transmitted. At this time, the first sub-frame f1 corresponding to the first image F40A may include a plurality of pixel points. For example, the resolution of the first sub-picture f1 may be 500 ppi (pixels per inch), which means that there are 500 pixels per inch in the first sub-picture f1, but the number of pixel points and the allocation method are not limited to this.
在另一實施例中,如圖10所示,第一深度值Z1
及第二深度值Z2
亦可直接呈現於顯示裝置10之整合影像F上。舉例來說,直接在第一子畫面f1的影像顯示內容上中呈現出第一深度值Z1
及在第二子畫面f2的影像顯示內容上中呈現出第二深度值Z2
。此呈現,可為圖像或文字方式,但不限於此。In another embodiment, as shown in FIG. 10, the first depth value Z 1 and the second depth value Z 2 can also be directly presented on the integrated image F of the
在一實施例中,處理模組850依照各個深度值來產生判斷順序,並依照判斷順序依序判斷位置資訊是否落入各個子畫面內。當判斷位置資訊M落入判斷順序較優先之子畫面範圍內時,則處理模組850停止判斷順序中之後續判斷,並將控制訊號自該子畫面所對應之連接介面輸出。圖11為處理模組輸出指標裝置的控制訊號之一實施例的流程圖。請參照圖11、圖8以及圖9。步驟S111處理模組850依照第一深度值Z1
及第二深度值Z2
產生判斷順序。步驟S112判斷位置資訊M與對應第一順位的子畫面範圍之位置。步驟S113若位置資訊M位於對應第一順位的子畫面範圍內,則前往步驟S114輸出控制訊號至對應主機。如在步驟S113時位置資訊M並未位於對應第一順位的子畫面範圍內,則前往S115判斷位置資訊M與對應第二順位的子畫面範圍之位置。步驟S116若位置資訊M位於對應第二順位的子畫面範圍內,則前往步驟S117輸出控制訊號至對應第二順位的主機。如在步驟S116時位置資訊M並未位於對應第二順位的子畫面範圍內,則前往S111重新確認判斷順序,並依照判斷順序重新判斷位置資訊M是否在第一順位的子畫面範圍內。需說明的是,第一深度值Z1
與第二深度值Z2
之優先順序產生的判斷順序會依情形而有所調整,例如輸出控制訊號至主機後則該主機的深度值會優先於其他主機,但深度值的優先順序改變方法並不限於此。此外第一深度值Z1
及第二深度值Z2
的順序亦可固定不變,此時S116步驟的判定若為否,則可跳過確認判斷順序的步驟S111直接進行到步驟S112。需說明的是,本實施例僅使用兩台主機40A、40B作為範例,但本實施例並不受限於主機的數量。例如當有三台以上主機時,處理模組850依照深度值產生判斷順序。若位置資訊M位於當下順位所對應的子畫面內時,則停止判斷程序並將指標裝置30的控制訊號經由對應子畫面的連接介面輸出至對應主機。若位置資訊並未位於當下順位所對應的子畫面內時,則處理模組850依照判斷順序選擇判斷下一順位。若當下順位已是最末順位,則處理模組850選擇判斷順序的第一順位,並重新確認位置資訊M是否落入對應第一順位的子畫面內。In one embodiment, the
本段落說明處理模組850輸出指標裝置30的控制訊號之另一實施例。在本實施例中,處理模組850分別或是依序判斷該位置資訊M是否落入各個子畫面(例如第一子畫面f1及第二子畫面f2)中。當判斷出位置資訊M同時落入多個子畫面中時,再比較各子畫面的深度值以決定輸出至哪一個子畫面所對應的主機位置。請參照圖12,步驟S121處理模組850確認位置資訊M的位置。步驟S122處理模組850會判斷位置資訊M是否位於整合影像F中任意一個子畫面範圍內,例如f1、f2。如果步驟S122的結果為否,則回到S121重新確認位置資訊M的位置。如果步驟S122的結果為是,則前往步驟S123。步驟S123判斷位置資訊M是否位於重疊區域,例如重疊區域A。如果S123的步驟為否,代表位置資訊M僅在一個子畫面上且此位置不與整合影像F中其他子畫面重疊,此時前往步驟S124。步驟S124輸出控制訊號至對應位置資訊M所在的子畫面之主機。舉例來說,當自指標裝置30接收的控制訊號中的位置資訊M落入第一子畫面f1中不與第二子畫面f2重疊之部分時,處理模組850將控制訊號自第一連接介面810輸出至與第一連接介面810相連接的第一主機40A,使第一主機40A可透過指標裝置30控制。同理當位置資訊M落入第二子畫面f2中不與第一子畫面f1重疊之部分時,處理模組850將控制訊號自第二連接介面820輸出至與第二連接介面820相連接的第二主機40B,使第二主機40B可透過指標裝置30控制。如果S123的步驟為是,則前往步驟S125。步驟S125處理模組850比較重疊區域A中每一個子畫面之深度值之優先順序後,前往步驟S126。步驟S126輸出控制訊號至與優先順序較高之子畫面對應的主機。舉例來說,若第一深度值Z1
優先於第二深度值Z2
,則處理模組850將控制訊號自第一連接介面810輸出至連接第一連接介面810的第一主機40A,使第一主機40A可透過指標裝置30進行控制。This paragraph describes another embodiment of the
需說明的是,判斷優先順序的方式為第一深度值Z1
具有第一順序且第二深度值Z2
具有第二順序。藉由第一順序與第二順序之先後或大小,來決定此優先順序。第一順序及第二順序之大小或先後可以透過操作者、處理模組850給定或是由連接介面之順序來預設。舉例來說,可預設第一連接介面810所對應的第一順序優先於第二連接介面820所對應的第二順序。但判斷優先順序之方法不限於此。It should be noted that the way of determining the priority order is that the first depth value Z 1 has a first order and the second depth value Z 2 has a second order. The priority order is determined by the order or size of the first order and the second order. The size or sequence of the first sequence and the second sequence can be given by the operator or the
此外,第一深度值Z1
的第一順序及第二深度值Z2
的第二順序的優先順序,可以視操作情況而有所調整。舉例來說,當處理模組850改變控制訊號的輸出對象時,第一順序與第二順序的優先度也可相應調整。當處理模組850輸出控制訊號之目標由第一主機40A被切換至第二主機40B時,此時第二順序將由原本落後於第一順序而被調整為優先於第一順序。或是當第二主機40B所傳送的第二影像F40B之重要度大於第一影像F40A時,第二順序可優先於第一順序。影響重要度的情況可例如第二主機40B有程式提醒訊息出現或有程式執行中,或是操作者正在點選第二主機40B對應的第二子畫面F40B中的內容,例如圖標(Icon),但影響重要度的情況不限於上述情形。此外重要度的判定,可以由處理模組850、第一主機40A、第二主機40B或操作者進行判定。In addition, the priority order of the first order of the first depth value Z 1 and the second order of the second depth value Z 2 can be adjusted according to operating conditions. For example, when the
圖13A為輸出整合影像F一實施例之示意圖。在本實施例中,第一影像F40A對應於第一座標,第二影像F40B對應於第二座標,整合影像F對應於整合座標。第一座標可依第一轉換與第一子畫面f1內之整合座標相互轉換。第二座標可依第二轉換與第二子畫面f2內之整合座標相互轉換。是以,當處理模組850分別使用第一轉換與第二轉換轉換時,第一影像40A和第二影像40B可以分別被轉換為第一子畫面f1和第二子畫面f2。具體來說,整合影像F可對應於整合座標,此整合座標有參考點PM
例如位於整合影像F的左上角。整合影像F上的一點Q可以用整合座標的座標值(XQ
,YQ
)來表示。其中XQ
代表點Q距離參考點PM
的水平距離,YQ
代表點Q距離參考點PM
的垂直距離。此外,請參照圖13B,第一影像F40A對應的第一子畫面f1有參考點P1
例如第一子畫面f1之左上角,在第一子畫面f1上的一點Q1
可以用第一座標中的座標值(XQ1
,YQ1
)來表示。其中XQ1
代表點Q1
距離參考點P1
的水平距離,YQ1
代表此點距離參考點P1的垂直距離。參考點PM
與參考點P1
有水平距離△X及垂直距離△Y。則整合座標可依公式1.1、1.2轉換為第一座標,但轉換的方式不限於此。需說明的是,本實施例僅用第一畫面區域f1來說明,然而本實施例並不限於第一畫面區域f1,且不受畫面區域的數量限制。(1.1)(1.2)FIG. 13A is a schematic diagram of an embodiment of outputting an integrated image F. FIG. In this embodiment, the first image F40A corresponds to the first coordinate, the second image F40B corresponds to the second coordinate, and the integrated image F corresponds to the integrated coordinate. The first icon can be converted to the integrated coordinates in the first sub-picture f1 according to the first conversion. The second coordinate can be converted mutually according to the second conversion and the integrated coordinate in the second sub-frame f2. Therefore, when the
圖14為處理模組輸出控制訊號至主機時所做相應轉換的示意圖。請參照圖8與圖14所示,第一主機40A具有第一影像F40A。當處理模組850將控制訊號自第一連接介面810輸出時,係將對應於該整合座標之位置資訊M依第一轉換轉換為對應於第一座標之第一位置資訊M’。具體來說,自指標裝置30的接收的位置資訊M於整合座標中具有座標值(XM
,YM
) 。此位置資訊M亦位於第一子畫面f1中,故座標值(XM
,YM
)可轉換為對應於第一座標的座標值(XM1
,YM1
)。當切換裝置800將指標裝置30的控制訊號自第一連接介面810輸出到第一主機40A時,位置資訊M將於第一主機40A的第一影像F40A上有對應的第一位置資訊M’ 。此時位置資訊M於第一座標的座標值(XM1
,YM1
)可對應至第一位置資訊M’的座標值(XM1
’,YM1
’)。此對應關係亦可依照第一子畫面f1的解析度W1
×H1
與第一影像F40A的解析度W1
’×H1
’的比值而有縮放,如公式2.1、2.2,但位置資訊M與第一位置資訊M’的對應關係不限於此。(2.1)(2.2)FIG. 14 is a schematic diagram of the corresponding conversion when the processing module outputs the control signal to the host. Please refer to FIG. 8 and FIG. 14, the
圖15為切換裝置800操作方法的流程圖。請參照圖15、圖8以及圖9。操作方法包含下列步驟。S151接收影像,具體而言,自第一連接介面810連接第一主機40A並接收第一影像F40A,自第二連接介面820連接第二主機40B接收第二影像F40B。S152接收控制訊號,具體而言,控制模組830連接指標裝置30並接收包含位置資訊M的控制訊號。S153產生整合影像F,具體而言,處理模組850根據第一影像F40A及第二影像F40B產生整合影像F。整合影像包括對應於第一影像F40A之第一子畫面f1及對應於第二影像F40B之第二子畫面f2。S154處理模組850分配深度值至第一影像F40A及第二影像F40B,使第一子畫面f1包含第一深度值Z1
,第二子畫面f2包含第二深度值Z2
。S155輸出整合影像F至顯示裝置顯示。S156輸出控制訊號至主機,具體來說,當第一子畫面f1的部分與第二子畫面f2的部分重疊而產生有重疊區域A。當位置資訊M落入重疊區域A內時,參考第一深度值Z1及第二深度值Z2決定將控制訊號自第一連接介面810與該第二連接介面820中之一者輸出,以藉由指標裝置30控制對應主機。FIG. 15 is a flowchart of the operation method of the
綜上所述,本發明的切換裝置及系統可針對螢幕上所顯示多個受控電腦的輸出畫面有所重疊之情形,使用深度值及座標轉換使操作者精準地使用滑鼠控制受控電腦。To sum up, the switching device and system of the present invention can use depth value and coordinate conversion to accurately control the controlled computer by using the mouse for the situation where the output images of multiple controlled computers displayed on the screen are overlapped. .
本發明已由上述相關實施例加以描述,然而上述實施例僅為實施本發明之範例。必需指出的是,已揭露之實施例並未限制本發明之範圍。相反地,包含於申請專利範圍之精神及範圍之修改及均等設置均包含於本發明之範圍內。The present invention has been described in the above-mentioned related embodiments, but the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent arrangements included in the spirit and scope of the patent application are all included in the scope of the present invention.
1,1:A多畫面系統
10:顯示裝置
20:多畫面操作裝置
30:指標裝置
40A,40B,40C,40D:主機
210:擷取模組
220,850:處理模組
230,830:控制模組
240:轉換模組
800:切換裝置
810,820:連接介面
840:影像輸出介面
F:整合影像
F40A,F40B:影像
f1,f2:子畫面
M:位置資訊1, 1: A multi-screen system
10: Display device
20: Multi-screen operation device
30:
圖1為本發明多畫面系統之一實施例示意圖。Fig. 1 is a schematic diagram of an embodiment of the multi-picture system of the present invention.
圖2為多畫面系統之另一實施例示意圖。Fig. 2 is a schematic diagram of another embodiment of a multi-picture system.
圖3為操作方法之一實施例流程圖。Fig. 3 is a flowchart of an embodiment of the operation method.
圖4A及圖4B為輸出畫面之一實施例示意圖。4A and 4B are schematic diagrams of an embodiment of the output screen.
圖5為操作方法之另一實施例流程圖。Fig. 5 is a flowchart of another embodiment of the operation method.
圖6為輸出畫面之另一實施例示意圖。Fig. 6 is a schematic diagram of another embodiment of the output screen.
圖7A及圖7B為改變畫面排列之一實施例示意圖。FIG. 7A and FIG. 7B are schematic diagrams of an embodiment of changing the picture arrangement.
圖8為切換裝置一實施例的示意圖。Fig. 8 is a schematic diagram of an embodiment of a switching device.
圖9為輸出畫面之另一實施例的示意圖。Fig. 9 is a schematic diagram of another embodiment of the output screen.
圖10為輸出畫面呈現深度值資訊的示意圖。FIG. 10 is a schematic diagram showing the depth value information displayed on the output screen.
圖11為判斷指標裝置的位置資訊方法之一實施例流程圖。FIG. 11 is a flowchart of an embodiment of a method for determining location information of a pointing device.
圖12為判斷指標裝置的位置資訊方法之一實施例流程圖。FIG. 12 is a flowchart of an embodiment of a method for determining the location information of the pointing device.
圖13A與13B為輸出畫面座標轉換的示意圖。13A and 13B are schematic diagrams of the coordinate conversion of the output screen.
圖14為指標裝置座標轉換的示意圖。Figure 14 is a schematic diagram of the coordinate conversion of the pointing device.
圖15為操作方法之一實施例流程圖。Fig. 15 is a flowchart of an embodiment of an operation method.
800:切換裝置 800: switching device
10:顯示裝置 10: Display device
30:指標裝置 30: indicator device
40A,40B:主機 40A, 40B: host
810,820:連接介面 810, 820: connection interface
830:控制模組 830: control module
840:影像輸出介面 840: Video output interface
850:處理模組 850: Processing Module
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