Home IPTV VOD radio multi-channel transmission system based on the broadband

A video transmission and video-on-demand technology, which is applied in the system field of the information transmission technology field, can solve problems such as undiscovered systems and inability to realize multi-channel TV signal transmission, and achieve the effect of reducing wiring and saving costs

Inactive Publication Date: 2007-09-12
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, unless transmitters and receivers in different frequency bands are used, the transmission of multiple TV sig

Method used

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  • Home IPTV VOD radio multi-channel transmission system based on the broadband
  • Home IPTV VOD radio multi-channel transmission system based on the broadband
  • Home IPTV VOD radio multi-channel transmission system based on the broadband

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Embodiment Construction

[0021] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.

[0022] The entire system of this embodiment is composed of a computer, a Server box, multiple Client boxes and corresponding TV sets and remote controllers, as shown in Figure 1.

[0023] As shown in Figure 3, the client box is composed of an antenna interface module, a wireless modem module, an audio and video decoding module, an audio and video interface module, and a remote control signal interface module. After the Client box receives the media data stream from the Server box through the antenna interface module, it modulates it into a digital audio and video data stream (GCDS)...

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Abstract

The invention is a windband-based home IPTV video-on-demand (VOD) wireless multichannel transmitting system, belonging to the field of electronic information technique, comprising: computer, video transmitting server end, client end data box, TV sets, and remote controllers, where the computer processes request of each terminal remote controller, and according to the request, searches media in network or itself, and then decodes and compresses the media into united digital audio-video data stream; the video transmitting server end modulates the data from the computer and wirelessly sends the modulated data to the client end data box and wirelessly receives request information from the client end data box and send the request information to the computer for processing; the client end data box demodulates the video data coming from the video transmitting server end into analog video signals for the TV set and receives signal from the remote controller and wirelessly modulates the signal to send to the video transmitting server end. And the invention can provides different services for multiple TV sets by a computer through wireless digital transmission at the same time.

Description

technical field [0001] The present invention relates to a system in the technical field of information transmission, and more specifically, to a broadband-based home IPTV video-on-demand wireless multiplex transmission system. Background technique [0002] There are two ways to access IPTV based on Internet broadband transmission: network cable access and optical fiber access. Since there are many different service providers, streaming media transmitted on the network will have many compression formats, such as MPEG2, MPEG4, AVS, H.264, VC1, etc. However, it is difficult for a set-top box to guarantee that it can decode all compressed data , and if the service provider changes the data transmission format according to their own needs, and the existing set-top box is not compatible, it can only be eliminated and replaced with a new product, which will cause great economic losses to users. As the performance of computers is getting better and better, and the price is getting ...

Claims

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Application Information

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IPC IPC(8): H04N7/173H04L29/06H04N21/60
Inventor 高守玮孙刚张卫东刘媛媛马菲
Owner SHANGHAI JIAO TONG UNIV
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