CN107318037A - Electronic device and image transmission control method - Google Patents
Electronic device and image transmission control method Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims description 12
- 238000003032 molecular docking Methods 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
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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
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
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Abstract
Description
技术领域technical field
本发明涉及一种电子装置及影像传输控制方法，尤指涉及一种可显示外部电子装置的屏幕显示内容并利用人机界面单元来操作外部电子装置的电子装置及影像传输控制方法。The invention relates to an electronic device and an image transmission control method, in particular to an electronic device and an image transmission control method which can display the screen display content of an external electronic device and use a man-machine interface unit to operate the external electronic device.
背景技术Background technique
随着科技的进步，便携式电子装置，如智能手机、平板电脑、穿戴式装置、笔记本电脑、相机等已越来越普及。便携式电子装置的便携性也让使用者可以在更多的场合中使用。为了方便使用者随身携带，便携式电子装置的显示屏幕通常不大，在某些情况实在无法提供较佳的影像显示。With the advancement of technology, portable electronic devices, such as smart phones, tablet computers, wearable devices, notebook computers, cameras, etc., have become more and more popular. The portability of the portable electronic device also allows users to use it in more occasions. In order to be convenient for users to carry around, the display screens of portable electronic devices are usually not large, and in some cases it is impossible to provide better image display.
一般来说，使用者通常会通过功能扩展坞(docking station)来将便携式电子装置屏幕显示内容显示于外接显示器上。然而，使用上仍需额外功能扩展坞设备的支持而造成使用者的不便。另一种方式是在便携式电子装置上安装软件程序将所欲显示内容压缩处理后传输到安装有相同软件程序的电脑主机进行解压缩处理后，再显示于电脑主机的屏幕上，此种方式虽不需额外扩展坞设备，但是其以软件压缩/解压缩的方式将显示内容显示于电脑主机的屏幕上，在装置运算能力不足的情形下将会有严重延迟的情况发生。因此，现有技术实有改进的必要。Generally speaking, users usually use a docking station to display the content displayed on the screen of the portable electronic device on an external monitor. However, the use still needs the support of the docking station with additional functions, which causes inconvenience to users. Another way is to install a software program on the portable electronic device to compress and process the content to be displayed, and then transmit it to a host computer equipped with the same software program for decompression, and then display it on the screen of the host computer. There is no need for additional docking station equipment, but it uses software compression/decompression to display the display content on the screen of the host computer. In the case of insufficient computing power of the device, there will be serious delays. Therefore, there is a need for improvement in the prior art.
发明内容Contents of the invention
为了解决上述问题，本发明提供一种可显示外部电子装置的屏幕显示内容并利用人机界面单元来操作外部电子装置的电子装置及影像传输控制方法。In order to solve the above problems, the present invention provides an electronic device and an image transmission control method capable of displaying screen display content of an external electronic device and operating the external electronic device through a human-machine interface unit.
本发明提供一种电子装置，包含有：一数据传输连接器；一集线器单元，连接于该数据传输连接器；一影像输入切换单元，用来选择性地通过该数据传输连接器接收来自于一外部电子装置的影像信号；以及一控制单元，用来控制该电子装置操作于一装置端模式或一主控端模式；其中，该控制单元控制该集线器单元将该电子装置切换操作于该装置端模式，且该控制单元控制该影像输入切换单元连接至该数据传输连接器，使该影像输入切换单元通过该数据传输连接器接收来自于该外部电子装置的影像信号。The present invention provides an electronic device, comprising: a data transmission connector; a hub unit connected to the data transmission connector; an image input switching unit for selectively receiving data from a The image signal of the external electronic device; and a control unit, which is used to control the electronic device to operate in a device-side mode or a host-side mode; wherein, the control unit controls the hub unit to switch the electronic device to operate on the device side mode, and the control unit controls the image input switching unit to be connected to the data transmission connector, so that the image input switching unit receives the image signal from the external electronic device through the data transmission connector.
本发明另提供一种影像传输控制方法，用于一电子装置，包含有：将该电子装置切换操作于一装置端模式；通过一数据传输连接器接收来自于一外部电子装置的影像信号；以及显示来自于该外部电子装置的影像信号。The present invention further provides an image transmission control method for an electronic device, comprising: switching the electronic device to operate in a device-side mode; receiving an image signal from an external electronic device through a data transmission connector; and Displaying image signals from the external electronic device.
附图说明Description of drawings
图1为本发明实施例的一电子系统的示意图。FIG. 1 is a schematic diagram of an electronic system according to an embodiment of the present invention.
图2及图3分别为本发明实施例的数据传输示意图。FIG. 2 and FIG. 3 are schematic diagrams of data transmission according to an embodiment of the present invention, respectively.
附图标记说明：Explanation of reference signs:
1 电子系统；1 electronic system;
10、20 电子装置；10, 20 electronic devices;
102 数据传输连接器；102 data transmission connector;
104 集线器单元；104 hub unit;
106 数据传输控制器；106 data transmission controller;
108 影像输入切换单元；108 image input switching unit;
110 控制单元；110 control unit;
112 显示单元；112 display unit;
114 图形处理单元；114 graphics processing units;
116 人机界面单元。116 Human Machine Interface Unit.
具体实施方式detailed description
为使本发明的上述特征和优点能更明显易懂，下文特举实施例，并配合所附图作详细说明如下。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.
请参考图1，图1为本发明实施例的一电子系统1的示意图。电子系统1至少包含有一电子装置10以及一电子装置20。电子装置10与电子装置20可通过有线或无线方式相互连结通信。电子装置10包含有一数据传输连接器102、一集线器单元104、一数据传输控制器106、一影像输入切换单元108、一控制单元110、一显示单元112以及一图形处理单元(GraphicsProcessing Unit)114。Please refer to FIG. 1 , which is a schematic diagram of an electronic system 1 according to an embodiment of the present invention. The electronic system 1 at least includes an electronic device 10 and an electronic device 20 . The electronic device 10 and the electronic device 20 can communicate with each other through wired or wireless means. The electronic device 10 includes a data transmission connector 102 , a hub unit 104 , a data transmission controller 106 , an image input switching unit 108 , a control unit 110 , a display unit 112 and a graphics processing unit (Graphics Processing Unit) 114 .
数据传输连接器102用来接收来自于电子装置20的影像信号。影像输入切换单元108用来选择性地接收数据传输连接器102所接收到的(来自于电子装置20)影像信号或是接收图形处理单元114所产生的影像信号，以提供至显示单元112进行显示。控制单元110用来控制电子装置10操作于一装置端(device)模式或一主控端(host)模式。控制单元110可控制集线器单元104将电子装置10切换操作于主控端模式。例如，控制单元104致使集线器单元104将数据传输控制器106设定为一上传端(upstream)，使电子装置10切换操作于主控端模式。在一实施例中，控制单元110控制集线器单元104，使得集线器单元104的一上传接口(upstream port)连接至数据传输控制器106。在此情况下，电子装置10将会操作于主控端模式。控制单元110也可控制集线器单元104将电子装置10切换操作于装置端模式。例如，控制单元104致使集线器单元104将数据传输连接器102设定为上传端，使电子装置10切换操作于装置端模式。在一实施例中，控制单元110控制集线器单元104，使得集线器单元104的上传接口连接至数据传输连接器102。在此情况下，电子装置10将会操作于装置端模式。The data transmission connector 102 is used for receiving image signals from the electronic device 20 . The image input switching unit 108 is used to selectively receive the image signal received by the data transmission connector 102 (from the electronic device 20 ) or receive the image signal generated by the graphics processing unit 114 to provide to the display unit 112 for display. . The control unit 110 is used to control the electronic device 10 to operate in a device mode or a host mode. The control unit 110 can control the hub unit 104 to switch and operate the electronic device 10 in the host mode. For example, the control unit 104 causes the hub unit 104 to set the data transmission controller 106 as an upstream, so that the electronic device 10 switches to operate in the host mode. In one embodiment, the control unit 110 controls the hub unit 104 such that an upstream port of the hub unit 104 is connected to the data transmission controller 106 . In this case, the electronic device 10 will operate in the master mode. The control unit 110 can also control the hub unit 104 to switch the operation of the electronic device 10 to the device-side mode. For example, the control unit 104 causes the hub unit 104 to set the data transmission connector 102 as the upload end, so that the electronic device 10 switches to operate in the device end mode. In one embodiment, the control unit 110 controls the hub unit 104 such that the upload interface of the hub unit 104 is connected to the data transmission connector 102 . In this case, the electronic device 10 will operate in the device-side mode.
以通用串行总线(Universal Serial Bus)界面的数据传输为例，请参考图2及图3，图2及图3分别为本发明实施例的数据传输示意图。举例来说，电子装置10为一电脑主机，电子装置20为一智能手机，电子装置10与电子装置20之间可通过符合通用串行总线3.1Type-C规范的通用串行总线界面来传输数据。数据传输连接器102、集线器单元104及/或数据传输控制器106也符合通用串行总线3.1Type-C规范，以收发符合通用串行总线3.1Type-C规范的信号。也就是说，若电子装置10操作于主控端模式时，电子装置10为通用串行总线规范中的一主控端装置。若电子装置10操作于装置端模式时，电子装置10为通用串行总线规范中的一装置端装置。Taking data transmission on a Universal Serial Bus interface as an example, please refer to FIG. 2 and FIG. 3 . FIG. 2 and FIG. 3 are schematic diagrams of data transmission according to an embodiment of the present invention, respectively. For example, the electronic device 10 is a computer host, and the electronic device 20 is a smart phone. Data can be transmitted between the electronic device 10 and the electronic device 20 through a USB interface conforming to the Universal Serial Bus 3.1 Type-C specification. . The data transmission connector 102 , the hub unit 104 and/or the data transmission controller 106 also conform to the USB 3.1 Type-C specification, so as to send and receive signals conforming to the USB 3.1 Type-C specification. That is to say, if the electronic device 10 operates in the master mode, the electronic device 10 is a master device in the Universal Serial Bus specification. If the electronic device 10 operates in the device-side mode, the electronic device 10 is a device-side device in the Universal Serial Bus specification.
当电子装置10欲接收电子装置20的影像信号并显示于显示单元112时，控制单元110可控制集线器单元104将电子装置10切换操作于装置端模式。例如，控制单元104致使集线器单元104将数据传输连接器102设定为一上传端，使电子装置10切换操作于装置端模式。换言之，通过控制单元110的控制，电子装置10会切换至装置端模式。在此情况下，当电子装置10与电子装置20连接上时将可由电子装置20传输数据至电子装置10的数据传输连接器102。进一步地，由于通用串行总线3.1Type-C规范的交替模式(Alternate Mode)支持影像信号传输，当电子装置10与电子装置20连结且电子装置10操作于装置端模式时，电子装置20可输出影像信号，并由电子装置10的数据传输连接器102来接收由电子装置20所输出的影像信号。进一步地，控制单元110控制影像输入切换单元108切换连接至数据传输连接器102，并将影像信号输入模式由图形处理单元输入模式切换进入数据传输连接器102的通用串行总线3.1的影像输入替代模式(Display PortAlternate Mode，Alternate mode DP-In)。如此一来，影像输入切换单元108可通过数据传输连接器102接收来自于电子装置20的影像信号，并将来自于电子装置20的影像信号提供至显示单元112。如图2所示，当电子装置10与电子装置20通过数据传输连接器102连接上后，电子装置20的影像信号将会通过数据传输连接器102及影像输入切换单元108而提供至显示单元112来做显示处理。When the electronic device 10 intends to receive the video signal of the electronic device 20 and display it on the display unit 112 , the control unit 110 can control the hub unit 104 to switch the electronic device 10 to operate in the device-end mode. For example, the control unit 104 causes the hub unit 104 to set the data transmission connector 102 as an upload end, so that the electronic device 10 switches to operate in the device end mode. In other words, under the control of the control unit 110, the electronic device 10 will switch to the device-side mode. In this case, when the electronic device 10 is connected to the electronic device 20 , data can be transmitted from the electronic device 20 to the data transmission connector 102 of the electronic device 10 . Further, since the Alternate Mode of the Universal Serial Bus 3.1 Type-C specification supports image signal transmission, when the electronic device 10 is connected to the electronic device 20 and the electronic device 10 operates in the device-side mode, the electronic device 20 can output The video signal output by the electronic device 20 is received by the data transmission connector 102 of the electronic device 10 . Further, the control unit 110 controls the image input switching unit 108 to switch and connect to the data transmission connector 102, and switch the image signal input mode from the graphics processing unit input mode to the USB 3.1 image input of the data transmission connector 102 instead. mode (Display Port Alternate Mode, Alternate mode DP-In). In this way, the image input switching unit 108 can receive the image signal from the electronic device 20 through the data transmission connector 102 and provide the image signal from the electronic device 20 to the display unit 112 . As shown in FIG. 2, when the electronic device 10 and the electronic device 20 are connected through the data transmission connector 102, the video signal of the electronic device 20 will be provided to the display unit 112 through the data transmission connector 102 and the video input switching unit 108. for display processing.
在现有技术中，使用传统通用串行总线规范的电子装置必须通过影像压缩及解压缩的处理或是额外扩展坞的影像转接处理才能传输影像数据至另一电子装置的显示器播放。而且电脑主机在通用串行总线界面传输的预设设置中通常是被预设为主控端模式而无法在装置连接后直接传输影像数据。相较之下，本案电子装置10通过控制单元110的控制，使集线器单元104调整上传功能的设定，进而让电子装置10操作于装置端模式。同时，通过控制单元110的控制，让影像输入切换单元108切换输入模式而连接至数据传输连接器102。在此情况下，当电子装置10与电子装置20连接上时将可由电子装置20传输影像信号至电子装置10的数据传输连接器102及影像输入切换单元108进而提供至显示单元112来做显示处理。In the prior art, an electronic device using the conventional USB specification must go through image compression and decompression processing or image transfer processing of an additional docking station to transmit image data to the display of another electronic device for playback. Moreover, the computer host is usually preset as the master control terminal mode in the default setting of the universal serial bus interface transmission, and cannot directly transmit the image data after the device is connected. In comparison, the electronic device 10 in this case enables the hub unit 104 to adjust the setting of the upload function through the control of the control unit 110 , and then makes the electronic device 10 operate in the device-end mode. At the same time, through the control of the control unit 110 , the image input switching unit 108 switches the input mode and connects to the data transmission connector 102 . In this case, when the electronic device 10 is connected to the electronic device 20, the video signal can be transmitted from the electronic device 20 to the data transmission connector 102 and the video input switching unit 108 of the electronic device 10, and then provided to the display unit 112 for display processing. .
另一方面，当电子装置10欲播放图形处理单元114所提供的影像信号并显示于显示单元112时，控制单元110可控制影像输入切换单元108切换连接至图形处理单元114，并将影像信号输入模式切换至图形处理单元输入模式，使得影像输入切换单元108可接收图形处理单元114所提供的影像信号，并将图形处理单元114的影像信号所提供的影像信号提供至显示单元112。也就是说，通过控制单元110的控制运作，影像输入切换单元108可选择性地接收来自于电子装置20的影像信号或是接收图形处理单元114所提供的影像信号，以提供至显示单元112。如图3所示，图形处理单元114所产生的影像信号将会提供至显示单元112来做显示处理。On the other hand, when the electronic device 10 intends to play the video signal provided by the graphics processing unit 114 and display it on the display unit 112, the control unit 110 can control the video input switching unit 108 to switch and connect to the graphics processing unit 114, and input the video signal The mode is switched to the GPU input mode, so that the video input switching unit 108 can receive the video signal provided by the GPU 114 and provide the video signal provided by the video signal of the GPU 114 to the display unit 112 . That is to say, through the control operation of the control unit 110 , the image input switching unit 108 can selectively receive the image signal from the electronic device 20 or receive the image signal provided by the graphics processing unit 114 to provide to the display unit 112 . As shown in FIG. 3 , the image signal generated by the graphics processing unit 114 will be provided to the display unit 112 for display processing.
此外，电子装置10还包含一人机界面单元(Human Interface Device)116，用来产生一人机界面单元指令。当电子装置10操作于装置端模式，人机界面单元116所产生的人机界面单元指令将可被提供至电子装置20，进而控制电子装置20。举例来说，若电子装置10为一电脑主机，电子装置20为一智能手机。当电子装置10操作于主控端模式时，若使用者将电子装置20连接至电子装置10时，电子装置20被视为一般的装置端装置而无法利用电子装置10的人机界面单元116来操作电子装置20。当电子装置10操作于装置端模式时，若使用者将电子装置20连接至电子装置10时，使用者可利用人机界面单元116来产生人机界面单元指令，并传送至电子装置20以控制电子装置20。简言之，通过控制单元110的控制，使用者可利用电子装置10的显示单元112来显示电子装置20的屏幕显示内容，同时又可利用人机界面单元116来操作电子装置20。In addition, the electronic device 10 further includes a human interface unit (Human Interface Device) 116 for generating a human interface unit command. When the electronic device 10 operates in the device-side mode, the human-machine interface unit command generated by the human-machine interface unit 116 can be provided to the electronic device 20 to control the electronic device 20 . For example, if the electronic device 10 is a computer host, the electronic device 20 is a smart phone. When the electronic device 10 is operated in the host mode, if the user connects the electronic device 20 to the electronic device 10, the electronic device 20 is regarded as a general device device and cannot use the human-machine interface unit 116 of the electronic device 10 to The electronic device 20 is operated. When the electronic device 10 operates in the device-side mode, if the user connects the electronic device 20 to the electronic device 10, the user can use the human-machine interface unit 116 to generate a human-machine interface unit command and send it to the electronic device 20 for control. electronic device 20 . In short, through the control of the control unit 110 , the user can use the display unit 112 of the electronic device 10 to display the screen content of the electronic device 20 , and at the same time use the man-machine interface unit 116 to operate the electronic device 20 .
值得注意的是，图1所示的电子系统1是用于说明本发明的一实施例，本领域一般技术人员当可根据系统需求，适当调整各元件的实现或运作方式。举例来说，电子装置10、20可为智能手机、平板电脑、笔记本电脑、台式电脑、智能电视、穿戴式装置、随身影音播放器、相机等，但不以此为限。数据传输连接器102、集线器单元104及/或数据传输控制器106符合通用串行总线3.1Type-C规范或是其他用于传输影像的传输界面规范。影像输入切换单元108可整合于一影音信号转换器(scaler)中来实现，但不以此为限。控制单元110可为硬件、固件(为硬件装置与电脑指令与数据的结合，且电脑指令与数据属于硬件装置上的只读软件)，例如可整合于一嵌入式控制器(Embedded Controller)中来实现，但不以此为限。人机界面单元116可为一触控面板、一触控板、一键盘、一鼠标、一按钮、一摇杆、一开关、轨迹球及其他可产生人机界面单元指令的输入设备或其组合。It is worth noting that the electronic system 1 shown in FIG. 1 is used to illustrate an embodiment of the present invention, and those skilled in the art can appropriately adjust the implementation or operation of each component according to system requirements. For example, the electronic devices 10 and 20 can be smart phones, tablet computers, notebook computers, desktop computers, smart TVs, wearable devices, portable video players, cameras, etc., but not limited thereto. The data transmission connector 102 , the hub unit 104 and/or the data transmission controller 106 comply with the Universal Serial Bus 3.1 Type-C specification or other transmission interface specifications for transmitting images. The image input switching unit 108 can be integrated into an audio-video signal scaler, but not limited thereto. The control unit 110 can be hardware or firmware (a combination of hardware devices and computer instructions and data, and the computer instructions and data belong to read-only software on the hardware device), for example, it can be integrated in an embedded controller (Embedded Controller) realized, but not limited to. The human-machine interface unit 116 can be a touch panel, a touchpad, a keyboard, a mouse, a button, a joystick, a switch, a trackball, and other input devices that can generate instructions for the human-machine interface unit, or a combination thereof .
综上所述，本发明的电子装置10通过控制单元110的控制，让使用者可利用电子装置10上的显示单元112来显示电子装置20的屏幕显示内容，同时又可利用人机界面单元116来操作电子装置20，而不需额外扩展坞设备并且也不需进行软件压缩/解压缩的复杂，因而能有效提升使用者的使用便利性。To sum up, the electronic device 10 of the present invention is controlled by the control unit 110, so that the user can use the display unit 112 on the electronic device 10 to display the screen display content of the electronic device 20, and at the same time use the human-machine interface unit 116 To operate the electronic device 20, no additional docking station equipment is required and the complexity of software compression/decompression is not required, thereby effectively improving the user's convenience.
以上所述仅为本发明的较佳实施例，凡依本发明权利要求所做的均等变化与修饰，皆应属本发明的涵盖范围。The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.
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