A broadcast high-definition television access device and method based on usb video transmission
A technology for high-definition television and access devices, applied in electrical components, image communication, selective content distribution, etc., and can solve problems such as unstable operation, occupation, and large amount of video information data.
Active Publication Date: 2018-06-22
广东省广播电视网络股份有限公司
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Problems solved by technology
However, when the home gateway transmits video information to the smart TV in real time, the data volume of the video information is relatively large, which often occupies a relatively large bandwidth, resulting in the inability of the home gateway to effectively exchange data with other electrical equipment, resulting in remote control failures. , operating less stable
In addition, signals are transmitted wirelessly between the home gateway and the smart TV. Due to the influence of the indoor environment, it is also difficult for the home gateway to transmit high-quality video signals to the smart TV. High-quality video signals are often affected by the indoor environment during wireless transmission. big disturbance
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[0018] Such as figure 1 , 2 The broadcast high-definition TV access device based on USB video transmission shown includes a home gateway and a TV Dongle (smart TV stick) adapter. Both the home gateway and the TV Dongle adapter are provided with a USB transmission interface, and the TVDongle adapter passes through the USB transmission interface. Connect with home gateway. The TV Dongle adapter includes a video processing chip, and the signal transmission end of the video processing chip is connected to the USB transmission interface of the TV Dongle adapter. Both the control chip of the home gateway and the video processing chip of the TV Dongle adapter are provided with an IP and USB data conversion module. When working, the TVDongle adapter wants to obtain the video data of program A to play. First, the TV Dongle adapter converts the IP request data (abc) of program A into USB data (ABC), and transmits it to the home gateway through the USB transmission interface; then the ...
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The invention discloses a broadcast high-definition television access device and method based on USB video transmission. When the broadcast high-definition television access device works, a TV Dongle adapter converts IP request data into USB data at first, and transmits the USB data to a home gateway through a USB transmission interface; then, after receiving the USB data through the USB transmission interface, the home gateway converts and analyzes the USB data into IP request data and completes interaction with a broadcast television front-end platform according to the IP request data so as to obtain corresponding video data; the home gateway carries out IP package of the video data, converts the after package into USB video data, and transmits the USB video data to the TV Dongle adapter through the USB transmission interface; and finally, the TV Dongle adapter converts the USB video data into IP video data and broadcasts the IP video data after analyzing. According to the device and method, on one hand, the cost spent on that an independent power supply is configured in the TV Dongle adapter is saved; on the other hand, compared with a wireless transmission manner, a signal transmission manner is steadier and is difficult to influence by indoor environments; and thus, the smooth transmission of radio and television level high-definition videos can be ensured.
Description
technical field [0001] The invention relates to a broadcast high-definition television access device and method based on USB video transmission. Background technique [0002] At present, the TV Dongle adapters on the market are generally powered by an independent power adapter, and are connected to the home gateway through the WIFI module to realize data transmission. The advantage of using the WIFI module for video data transmission is that no additional wiring is required, but the cost is relatively high. And it takes up a lot of bandwidth, and the signal quality is easily affected by the environment, resulting in unstable transmitted video signals. [0003] In addition, with the increase of radio and television services, services such as video on demand, high-definition TV, and broadband Internet access are growing at a high speed. If any service is transmitted to each terminal through the WIFI module of the home gateway, the load of the WIFI module will inevitably increa...
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IPC IPC(8): H04N21/41H04N21/426H04N21/61
CPCH04N21/41H04N21/42607H04N21/61
Inventor 李建华潘在友王斌王建勋李海波黄维黄武宏汤敏健何志贤
Owner 广东省广播电视网络股份有限公司