TWI443641B - Transmitting device, receiving device, screen frame transmission system and method - Google Patents
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本發明是有關一種發送裝置、接收裝置、螢幕畫面傳輸系統及方法，特別是一種讓使用者較易建立通訊連線之發送裝置、接收裝置、螢幕畫面傳輸系統及方法。The present invention relates to a transmitting device, a receiving device, a screen display system and method, and more particularly to a transmitting device, a receiving device, a screen display system and a method for allowing a user to easily establish a communication connection.
分享螢幕畫面為資訊科技的重要應用之一，例如以遠端桌面(remote desktop)進行遠端控制，或是電腦以無線通訊方式與投影機連接以進行簡報等。此外，隨著具備照相以及攝影功能之可攜式裝置的普及以及其顯示單元之尺寸限制，使用者分享所拍攝之影像的需求快速增加。Sharing screens is one of the most important applications of information technology, such as remote control with a remote desktop, or a computer connected to a projector for wireless communication. In addition, with the popularity of portable devices with camera and photography functions and the size limitations of their display units, the demand for users to share captured images has increased rapidly.
然而，在傳送螢幕畫面之前，使用者必須先正確設定連線資訊，發送端以及接收端才能建立通訊連線。舉例而言，使用者需知道接收裝置之正確IP位址，再將其輸入發送裝置中，發送裝置才能與接收裝置建立通訊連線。這對於不熟悉電腦操作的使用者而言是相當困難的。However, before transmitting the screen, the user must correctly set the connection information, and the sender and receiver can establish the communication connection. For example, the user needs to know the correct IP address of the receiving device and then input it into the transmitting device, and the transmitting device can establish a communication connection with the receiving device. This is quite difficult for users who are not familiar with computer operations.
綜上所述，如何讓使用者經由簡單的操作即可使發送端以及接收端建立通訊連線並傳送螢幕畫面便是目前極需努力的目標。In summary, how to enable the user to establish a communication connection and transmit a screen image through the simple operation is a very urgent goal.
本發明提供一種發送裝置、接收裝置、螢幕畫面傳輸系統及方法，其接收端將連線資訊轉換為一二維條碼，以使發送端可經由擷取二維條碼之影像取得所需之連線資訊，進而建立通訊連線並傳送螢幕畫面，藉此簡化使用者的操作程序。The invention provides a transmitting device, a receiving device, a screen screen transmission system and a method, wherein the receiving end converts the connection information into a two-dimensional barcode, so that the transmitting end can obtain the required connection by capturing the image of the two-dimensional barcode. Information, which in turn establishes a communication link and transmits a screen to simplify the user's operating procedures.
本發明一實施例之螢幕畫面傳輸系統包含一接收裝置以及一發送裝置。接收裝置包含一顯示單元或一視訊連接埠、一第一通訊介面以及一第一處理單元。視訊連接埠用以與外接之顯示裝置電性連接。顯 示單元或顯示裝置用以顯示包含連線資訊之一二維條碼。第一通訊介面用以接收一螢幕畫面。第一處理單元與第一通訊介面以及顯示單元或視訊連接埠電性連接，用以產生二維條碼以及解碼螢幕畫面以供顯示單元或顯示裝置輸出。發送裝置包含一影像擷取單元、一第二通訊介面以及一第二處理單元。影像擷取單元用以擷取顯示單元或顯示裝置所輸出之二維條碼。第二通訊介面用以傳送螢幕畫面。第二處理單元與影像擷取單元以及第二通訊介面電性連接，用以解碼二維條碼以取得連線資訊，並以連線資訊與接收裝置建立通訊連線以傳送螢幕畫面，其中第一通訊介面以及第二通訊介面包含一無線區域網路介面。A screen picture transmission system according to an embodiment of the present invention includes a receiving device and a transmitting device. The receiving device comprises a display unit or a video port, a first communication interface and a first processing unit. The video port is used for electrically connecting to an external display device. Display The display unit or the display device is configured to display a two-dimensional barcode including one of the connection information. The first communication interface is for receiving a screen image. The first processing unit is electrically connected to the first communication interface and the display unit or the video interface for generating a two-dimensional barcode and decoding the screen for output by the display unit or the display device. The transmitting device comprises an image capturing unit, a second communication interface and a second processing unit. The image capturing unit is configured to capture a two-dimensional barcode output by the display unit or the display device. The second communication interface is used to transmit a screen image. The second processing unit is electrically connected to the image capturing unit and the second communication interface, and is configured to decode the two-dimensional barcode to obtain the connection information, and establish a communication connection with the receiving device by using the connection information to transmit the screen image, wherein the first The communication interface and the second communication interface include a wireless local area network interface.
本發明一實施例之發送裝置用以與一接收裝置組成一螢幕畫面傳輸系統。發送裝置包含一影像擷取單元、一通訊介面以及一處理單元。影像擷取單元用以擷取接收裝置所顯示之二維條碼，其包含一連線資訊。通訊介面用以傳送螢幕畫面至接收裝置，其中該通訊介面包含一無線區域網路介面。處理單元與影像擷取單元以及通訊介面電性連接，用以解碼二維條碼以取得連線資訊，並以連線資訊與接收裝置建立通訊連線以傳送螢幕畫面。The transmitting device of an embodiment of the present invention is configured to form a screen screen transmission system with a receiving device. The transmitting device comprises an image capturing unit, a communication interface and a processing unit. The image capturing unit is configured to capture a two-dimensional barcode displayed by the receiving device, and includes a connection information. The communication interface is used to transmit a screen to the receiving device, wherein the communication interface comprises a wireless local area network interface. The processing unit is electrically connected to the image capturing unit and the communication interface for decoding the two-dimensional barcode to obtain the connection information, and establishing a communication connection with the receiving device by using the connection information to transmit the screen image.
本發明一實施例之接收裝置用以與一發送裝置組成一螢幕畫面傳輸系統。接收裝置包含一顯示單元或一視訊連接埠、一通訊介面以及一處理單元。視訊連接埠用以與外接之顯示裝置電性連接。顯示單元或顯示裝置用以顯示一二維條碼，其包含一連線資訊。通訊介面，用以接收發送裝置所傳送之一螢幕畫面，其中通訊介面包含一無線區域網路介面。處理單元與通訊介面以及顯示單元或視訊連接埠電性連接，用以產生二維條碼以及解碼螢幕畫面以供顯示單元或顯示裝置輸出。The receiving device according to an embodiment of the present invention is configured to form a screen picture transmission system with a transmitting device. The receiving device comprises a display unit or a video port, a communication interface and a processing unit. The video port is used for electrically connecting to an external display device. The display unit or the display device is configured to display a two-dimensional barcode including a connection information. The communication interface is configured to receive a screen image transmitted by the transmitting device, wherein the communication interface comprises a wireless area network interface. The processing unit is electrically connected to the communication interface and the display unit or the video interface for generating a two-dimensional barcode and decoding the screen for output by the display unit or the display device.
本發明一實施例之電腦可讀取之媒體，其記錄一電腦程式，以供一發送裝置載入以執行傳送螢幕畫面至一接收裝置之方法。方法包含以一影像擷取單元擷取接收裝置所顯示之一二維條碼，其包含一連線資訊；解碼二維條碼以取得連線資訊；以一無線區域網路介面以及連 線資訊與接收裝置建立一通訊連線；以及擷取並傳送螢幕畫面。A computer readable medium according to an embodiment of the present invention records a computer program for loading by a transmitting device to perform a method of transmitting a screen to a receiving device. The method comprises: capturing, by an image capturing unit, a two-dimensional barcode displayed by the receiving device, which comprises a connection information; decoding the two-dimensional barcode to obtain connection information; and using a wireless local area network interface and The line information establishes a communication connection with the receiving device; and captures and transmits the screen image.
本發明一實施例之電腦可讀取之媒體，其記錄一電腦程式，以供一接收裝置載入以執行接收一發送裝置所傳送螢幕畫面之方法。方法包含決定一連線資訊；將連線資訊轉換為一二維條碼；以一顯示單元或一外接之顯示裝置輸出二維條碼，以供發送裝置擷取二維條碼；以一無線區域網路介面與發送裝置建立一通訊連線；以及等待接收發送裝置所傳送之螢幕畫面並以顯示單元或外接之顯示裝置加以輸出。A computer readable medium according to an embodiment of the present invention records a computer program for loading by a receiving device to perform a method of receiving a screen image transmitted by a transmitting device. The method comprises: determining a connection information; converting the connection information into a two-dimensional barcode; outputting the two-dimensional barcode by using a display unit or an external display device for the transmitting device to capture the two-dimensional barcode; and using a wireless local area network The interface establishes a communication connection with the transmitting device; and waits for receiving the screen image transmitted by the transmitting device and outputs it by the display unit or the external display device.
以下藉由具體實施例配合所附的圖式詳加說明，當更容易瞭解本發明之目的、技術內容、特點及其所達成之功效。The purpose, technical contents, features, and effects achieved by the present invention will become more apparent from the detailed description of the appended claims.
請參照圖1，本發明之一實施例之螢幕畫面傳輸系統10包含一接收裝置11a以及一發送裝置12。接收裝置11a包含一顯示單元111a、一第一通訊介面112以及一第一處理單元113。其中，第一處理單元113與顯示單元111a電性連接，並將發送裝置12所需之連線資訊轉換為一二維條碼C於顯示單元111a輸出。舉例而言，二維條碼C可為一快速反應碼(Quick Response code，QR code)。此外，第一處理單元113亦與第一通訊介面112電性連接，並經由第一通訊介面112接收發送裝置12所傳送之螢幕畫面於顯示單元111a輸出。Referring to FIG. 1, a screen transmission system 10 according to an embodiment of the present invention includes a receiving device 11a and a transmitting device 12. The receiving device 11a includes a display unit 111a, a first communication interface 112, and a first processing unit 113. The first processing unit 113 is electrically connected to the display unit 111a, and converts the connection information required by the transmitting device 12 into a two-dimensional barcode C for output on the display unit 111a. For example, the two-dimensional barcode C can be a Quick Response code (QR code). In addition, the first processing unit 113 is also electrically connected to the first communication interface 112, and receives the screen screen transmitted by the transmitting device 12 via the first communication interface 112 to be output on the display unit 111a.
發送裝置12則包含一影像擷取單元121、一第二通訊介面122以及一第二處理單元123，其與影像擷取單元121以及第二通訊介面122電性連接。第二處理單元123可利用影像擷取單元121擷取接收裝置11a之顯示單元111a所輸出的二維條碼C，並將其解碼以取得與接收裝置11a建立通訊連線所需之連線資訊。第二處理單元123依據解碼二維條碼C所得到之連線資訊即可與接收裝置11a建立通訊連線並傳送螢幕畫面。本發明所屬技術領域中具有通常知識者可利用現有技術實現擷取以及傳送螢幕畫面之方法，在此不再贅述。The transmitting device 12 includes an image capturing unit 121, a second communication interface 122, and a second processing unit 123. The transmitting device 12 is electrically connected to the image capturing unit 121 and the second communication interface 122. The second processing unit 123 can use the image capturing unit 121 to capture the two-dimensional barcode C output by the display unit 111a of the receiving device 11a, and decode it to obtain connection information required for establishing a communication connection with the receiving device 11a. The second processing unit 123 can establish a communication connection with the receiving device 11a and transmit a screen image according to the connection information obtained by decoding the two-dimensional barcode C. A method for capturing and transmitting a screen image by using a prior art can be implemented in the technical field of the present invention, and details are not described herein again.
於一實施例中，第一通訊介面112以及第二通訊介面122可為一無線區域網路介面，例如IEEE 802.11通訊標準。發送裝置12即可利用IP位址(Internet Protocol address)與接收裝置11a建立通訊連線。舉例而言，接收裝置11a可為具有網路介面之顯示裝置，例如顯示器、電視、投影機、平板電腦等；發送裝置12可為具有影像擷取單元以及網路介面之可攜式電子裝置，例如行動電話、個人數位助理(PDA)、平板電腦、膝上型電腦、桌上型電腦等。In one embodiment, the first communication interface 112 and the second communication interface 122 can be a wireless local area network interface, such as the IEEE 802.11 communication standard. The transmitting device 12 can establish a communication connection with the receiving device 11a by using an IP address. For example, the receiving device 11a can be a display device with a network interface, such as a display, a television, a projector, a tablet, etc. The transmitting device 12 can be a portable electronic device having an image capturing unit and a network interface. For example, mobile phones, personal digital assistants (PDAs), tablets, laptops, desktop computers, and the like.
於另一實施例中，接收裝置僅包含第一通訊介面112、第一處理單元113以及一視訊連接埠114，而未包含顯示單元111a，如圖1所示之接收裝置11b。接收裝置11b可經由視訊連接埠114與一外接之顯示裝置111b電性連接。如此，接收裝置11b即可利用外接之顯示裝置111b輸出包含連線資訊之二維條碼C。藉由上述架構，缺少網路介面之顯示裝置111b亦可作為分享螢幕畫面之接收端。舉例而言，視訊連接埠114可為一視訊圖形陣列(Video Graphics Array，VGA)端子、數位視訊介面(Digital Visual Interface，DVI)、高清晰度多媒體介面(High Definition Multimedia Interface，HDMI)、色差端子(Component Video Connector)、S-端子(S-Video)或AV端子(複合端子，Composite video connector)等。In another embodiment, the receiving device only includes the first communication interface 112, the first processing unit 113, and a video port 114, and does not include the display unit 111a, such as the receiving device 11b shown in FIG. The receiving device 11b can be electrically connected to an external display device 111b via the video port 114. In this manner, the receiving device 11b can output the two-dimensional barcode C including the connection information by using the external display device 111b. With the above architecture, the display device 111b lacking the network interface can also serve as the receiving end of the shared screen. For example, the video port 114 can be a video graphics Array (VGA) terminal, a digital video interface (DVI), a high definition multimedia interface (HDMI), a color difference terminal. (Component Video Connector), S-Video (S-Video) or AV terminal (Composite video connector).
請參照圖2，說明本發明之螢幕畫面傳輸系統10之操作流程。首先，接收端(例如接收裝置11a、11b)利用顯示單元111a或外接之顯示裝置111b輸出一二維條碼C(S21)。接著，發送端(例如發送裝置12)利用影像擷取單元121擷取二維條碼C之影像，並解碼二維條碼C以取得所需之連線資訊(S22)。發送端再依據解碼二維條碼C所取得之連線資訊與接收端建立通訊連線(S23)。之後，發送端即可擷取螢幕畫面並傳送至接收端(S24)。接收端則接收發送端所傳送之螢幕畫面並加以輸出(S25)。Referring to Figure 2, the operational flow of the screen transfer system 10 of the present invention will be described. First, the receiving end (for example, the receiving device 11a, 11b) outputs a two-dimensional bar code C by using the display unit 111a or the external display device 111b (S21). Then, the transmitting end (for example, the transmitting device 12) uses the image capturing unit 121 to capture the image of the two-dimensional barcode C, and decodes the two-dimensional barcode C to obtain the required connection information (S22). The transmitting end establishes a communication connection with the receiving end according to the connection information obtained by decoding the two-dimensional barcode C (S23). After that, the transmitting end can capture the screen and transmit it to the receiving end (S24). The receiving end receives the screen image transmitted by the transmitting end and outputs it (S25).
以下請參照圖3，說明接收端之操作流程。首先，接收裝置先決定一連線資訊(S31)。舉例而言，接收裝置可事先設定或是經由動態主機配置協議(Dynamic Host Configuration Protocol，DHCP)取得一IP位址。 於一實施例中，接收裝置可為一無線區域網路之存取點(access point，AP)，因此，連線資訊亦包含一存取點之服務設定識別符(service set identifier，SSID)。為了安全起見，連線資訊可更包含存取點之連線密碼。另外，接收裝置可亂數產生一識別碼。發送裝置需正確輸入接收裝置所產生之識別碼才可利用接收端之顯示單元111a或顯示裝置111b輸出所傳送之螢幕畫面。Please refer to FIG. 3 below for the operation flow of the receiving end. First, the receiving device first determines a connection information (S31). For example, the receiving device can set an IP address in advance or via a Dynamic Host Configuration Protocol (DHCP). In an embodiment, the receiving device may be an access point (AP) of a wireless local area network. Therefore, the connection information also includes an service set identifier (SSID) of an access point. For security reasons, the connection information can further include the connection password of the access point. In addition, the receiving device can generate an identification code in a random number. The transmitting device needs to correctly input the identification code generated by the receiving device to output the transmitted screen image by using the display unit 111a or the display device 111b of the receiving end.
接著，接收裝置依據使用者之網路設定將所需之連線資訊轉換為一二維條碼C(S32)，例如QR碼，並以顯示單元111a或顯示裝置111b輸出(S33)。之後，接收裝置即等待接收發送裝置所傳送之螢幕畫面(S34)，並判斷是否接收到螢幕畫面(S35)。若有，接收裝置即以顯示單元111a或顯示裝置111b輸出螢幕畫面(S36)；若否，則回到步驟S34等待接收發送裝置所傳送之螢幕畫面。Then, the receiving device converts the required connection information into a two-dimensional barcode C (S32), such as a QR code, according to the user's network setting, and outputs it to the display unit 111a or the display device 111b (S33). Thereafter, the receiving device waits for receiving the screen screen transmitted by the transmitting device (S34), and determines whether or not the screen screen is received (S35). If so, the receiving device outputs the screen screen by the display unit 111a or the display device 111b (S36); if not, the process returns to step S34 to wait for the screen screen transmitted by the transmitting device.
以下請參照圖4，說明發送端之操作流程。首先，發送裝置12利用影像擷取單元121擷取接收端所顯示之二維條碼C之影像(S41)。接著，依據所擷取之影像解碼二維條碼C，以取得與接收端建立通訊連線所需之連線資訊(S43)，例如IP位址、SSID、連線密碼或識別碼等。較佳者，進行解碼二維條碼之前，可先判斷所擷取之影像是否清晰或完整而可以解碼(S42)。若是，則進行解碼二維條碼(S43)；若否，則回到步驟S41，重新擷取二維條碼C之影像。Please refer to FIG. 4 below to explain the operation flow of the transmitting end. First, the transmitting device 12 captures the image of the two-dimensional barcode C displayed by the receiving end by using the image capturing unit 121 (S41). Then, the two-dimensional barcode C is decoded according to the captured image to obtain connection information (S43), such as an IP address, an SSID, a connection password or an identification code, which is required to establish a communication connection with the receiving end. Preferably, before decoding the two-dimensional barcode, it may be determined whether the captured image is clear or complete and can be decoded (S42). If yes, the two-dimensional barcode is decoded (S43); if not, the process returns to step S41 to retrieve the image of the two-dimensional barcode C.
接續上述說明，發送裝置12取得連線資訊後，即可依據連線資訊與接收端建立通訊連線(S44)。舉例而言，發送裝置12能夠以IP位址與接收端建立通訊連線。或者，發送裝置12先依據SSID以及連線密碼與存取點建立通訊連線，再依據IP位址與接收裝置建立通訊連線。若接收端有設定識別碼，則發送裝置12需再輸入二維條碼C中之識別碼(S45)，以取得使用接收端之顯示單元111a或顯示裝置111b的許可。之後，發送裝置12即可擷取螢幕畫面並傳送至接收端(S46)。最後，判斷使用者是否結束傳輸螢幕畫面之作業(S47)，若是，則結束；若否，則回到步驟S46，繼續擷取螢幕畫面並傳送至接收端。Following the above description, after the transmitting device 12 obtains the connection information, the communication connection can be established with the receiving end according to the connection information (S44). For example, the transmitting device 12 can establish a communication connection with the receiving end by using an IP address. Alternatively, the transmitting device 12 first establishes a communication connection with the access point according to the SSID and the connection password, and establishes a communication connection with the receiving device according to the IP address. If the receiving end has the setting identification code, the transmitting device 12 needs to input the identification code in the two-dimensional barcode C (S45) to obtain the permission to use the display unit 111a or the display device 111b of the receiving end. Thereafter, the transmitting device 12 can capture the screen and transmit it to the receiving end (S46). Finally, it is determined whether the user has finished the operation of transmitting the screen (S47), and if so, the process ends; if not, the process returns to step S46 to continue capturing the screen and transmitting to the receiving end.
於一實施例中，本發明一實施例之電腦可讀取之媒體記錄一電腦程式，其可供一發送裝置載入以執行傳送螢幕畫面至一接收裝置之一方法。發送裝置傳送螢幕畫面之方法之步驟已如圖4所示，在此不再贅述。本發明另一實施例之電腦可讀取之媒體記錄一電腦程式，其可供一接收裝置載入以執行接收一發送裝置所傳送螢幕畫面之一方法。接收螢幕畫面之方法之步驟已如圖3所示，在此不再贅述。In one embodiment, a computer readable medium recording computer program according to an embodiment of the present invention can be loaded by a transmitting device to perform a method of transmitting a screen to a receiving device. The steps of the method for transmitting the screen image by the transmitting device are as shown in FIG. 4, and details are not described herein again. A computer readable medium recording computer program according to another embodiment of the present invention can be loaded by a receiving device to perform a method of receiving a screen image transmitted by a transmitting device. The steps of the method for receiving the screen image are as shown in FIG. 3, and details are not described herein again.
綜合上述，本發明之發送裝置、接收裝置、螢幕畫面傳輸系統及方法是將接收端之連線資訊轉換為一二維條碼，並以一顯示單元或外接之顯示裝置輸出，以使發送端可經由擷取二維條碼之影像解碼取得所需之連線資訊，進而建立通訊連線並傳送螢幕畫面。因此，藉由本發明，使用者以簡單的操作程序即可建立發送端以及接收端之通訊連線並分享螢幕畫面。In summary, the transmitting device, the receiving device, and the screen display system and method of the present invention convert the connection information of the receiving end into a two-dimensional bar code, and output it by a display unit or an external display device, so that the transmitting end can be Decode the image of the 2D barcode to obtain the required connection information, and then establish a communication connection and transmit the screen. Therefore, with the present invention, the user can establish a communication connection between the transmitting end and the receiving end and share the screen picture with a simple operation procedure.
以上所述之實施例僅是為說明本發明之技術思想及特點，其目的在使熟習此項技藝之人士能夠瞭解本發明之內容並據以實施，當不能以之限定本發明之專利範圍，即大凡依本發明所揭示之精神所作之均等變化或修飾，仍應涵蓋在本發明之專利範圍內。The embodiments described above are only intended to illustrate the technical idea and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention. That is, the equivalent variations or modifications made by the spirit of the present invention should still be included in the scope of the present invention.
10‧‧‧螢幕畫面傳輸系統10‧‧‧Screen screen transmission system
11a、11b‧‧‧接收裝置11a, 11b‧‧‧ receiving device
111a‧‧‧顯示單元111a‧‧‧Display unit
111b‧‧‧顯示裝置111b‧‧‧Display device
112‧‧‧第一通訊介面112‧‧‧First Communication Interface
113‧‧‧第一處理單元113‧‧‧First Processing Unit
114‧‧‧視訊連接埠114‧‧‧Video Connection埠
12‧‧‧發送裝置12‧‧‧Send device
121‧‧‧影像擷取單元121‧‧‧Image capture unit
122‧‧‧第二通訊介面122‧‧‧Second communication interface
123‧‧‧第二處理單元123‧‧‧Second processing unit
C‧‧‧二維條碼C‧‧‧2D barcode
S21~S25‧‧‧螢幕畫面傳輸方法S21~S25‧‧‧Screen screen transmission method
S31~S36‧‧‧接收端接收螢幕畫面之方法S31~S36‧‧‧How to receive the screen on the receiving end
S41~S47‧‧‧發送端傳送螢幕畫面之方法S41~S47‧‧‧How to send the screen to the sender
圖1為一方塊圖，顯示本發明一實施例之螢幕畫面傳輸系統。1 is a block diagram showing a screen screen transmission system in accordance with an embodiment of the present invention.
圖2為一流程圖，顯示本發明一實施例之螢幕畫面傳輸方法。2 is a flow chart showing a screen screen transmission method according to an embodiment of the present invention.
圖3為一流程圖，顯示本發明一實施例之接收裝置執行接收發送裝置所傳送螢幕畫面之方法。3 is a flow chart showing a method in which a receiving device according to an embodiment of the present invention performs a screen image transmitted by a receiving device.
圖4為一流程圖，顯示本發明一實施例之發送裝置執行傳送螢幕畫面至接收裝置之方法。4 is a flow chart showing a method of transmitting a screen to a receiving device by a transmitting device according to an embodiment of the present invention.
10‧‧‧螢幕畫面傳輸系統10‧‧‧Screen screen transmission system
11a、11b‧‧‧接收裝置11a, 11b‧‧‧ receiving device
111a‧‧‧顯示單元111a‧‧‧Display unit
111b‧‧‧顯示裝置111b‧‧‧Display device
112‧‧‧第一通訊介面112‧‧‧First Communication Interface
113‧‧‧第一處理單元113‧‧‧First Processing Unit
114‧‧‧視訊連接埠114‧‧‧Video Connection埠
12‧‧‧發送裝置12‧‧‧Send device
121‧‧‧影像擷取單元121‧‧‧Image capture unit
122‧‧‧第二通訊介面122‧‧‧Second communication interface
123‧‧‧第二處理單元123‧‧‧Second processing unit
C‧‧‧二維條碼C‧‧‧2D barcode
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| CN2011104323395A CN102638724A (en) | 2011-02-11 | 2011-12-21 | Transmitting device, receiving device, screen picture transmission system and readable medium |
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