Method for requesting unidirectional wired TV set-top box video back-transmitted by using mobile communication network

A mobile communication network and video-on-demand technology, applied in the field of one-way cable TV set-top box video-on-demand, can solve the problems of increasing implementation complexity and usage costs, restricting the popularization and development of IP-QAMVOD, and high construction costs

Inactive Publication Date: 2009-08-19
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, IP-QAM VOD not only requires users to access the cable TV network, but also needs to have a return channel in order to realize the return of user-on-demand information.
There are many ways to realize the backhaul channel: adopting broadband network backhaul will increase the implementation complexity and usage costs; for two-way transformation of cable TV, the set-top box needs to inherit the Cable Modem, and the construction cost is high
All these limit the popularization and development of IP-QAM VOD

Method used

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  • Method for requesting unidirectional wired TV set-top box video back-transmitted by using mobile communication network
  • Method for requesting unidirectional wired TV set-top box video back-transmitted by using mobile communication network
  • Method for requesting unidirectional wired TV set-top box video back-transmitted by using mobile communication network

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Embodiment Construction

[0051] The method of the present invention is described in detail below with reference to the accompanying drawings.

[0052] One, the composition and working principle of the VOD system realized by the present invention

[0053] The invention transforms the traditional IP-QAM VOD by using the mobile communication network as the user information return channel. This VOD system consists of 4 parts, such as image 3 : head-end server, including VOD server, EPG server and statement server; user terminal, including one-way set-top box and mobile phone; information return channel, that is, mobile communication network; program stream downstream channel, that is, HFC network, including the QAM and IP-QAM equipment. Among them, the EPG server provides WAP service to the mobile phone by connecting to the mobile communication network, provides program query service to the user, and receives the request of the user.

[0054] The basic workflow is as follows: the user uses a mobile ph...

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Abstract

The invention provides a uni-directional set-top cable box video-on-demand method making use of the passback of mobile communication network, which is that users use mobile communication network for visiting EPG server and examining the list of programs; a request for ordering programs is proposed; video-on-demand server sends the program stream to the IP-QAM equipment of users; IP-QAM modulates the program stream to the radio-frequency signal; and the program stream is received by the set box of the users for the playback. The video-on-demand method needs no double action transformation of cable, and extra computer network to realize the fast video-on-demand service.

Description

technical field [0001] The invention relates to a network communication technology, in particular to a one-way video-on-demand method for a cable TV set-top box backhauled by a mobile communication network. Background technique [0002] The further development direction of TV technology and application is interactive and high-definition, among which video on demand (Video on demand, hereinafter referred to as VOD) is the main content of interactive TV. Compared with the current VOD based on computer terminals, TV VOD can provide a larger picture, and the audience can adopt a more comfortable viewing posture to obtain a better viewing experience. It is the main form of VOD. [0003] Aiming at the demand of VOD, a variety of TV-oriented VOD broadcast technologies have been implemented, mainly including NVOD, IPTV and IP-QAM, etc., and have been applied in practice. [0004] NVOD is realized along with the digitalization of cable TV. By broadcasting programs with multiple stre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/173H04N7/10H04N21/437H04N21/63
Inventor 李晓峰崔卫季伟刘永辉刘剑李洪生赵鹏
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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