Method for identifying set top box in service group in one-way network video on demand system

A video-on-demand, one-way network technology, applied in the direction of two-way working systems, TVs, electrical components, etc., can solve the problem that the service group cannot be reflected in the video-on-demand background system, reduce the mobility of the set-top box, and the set-top box cannot normally watch video-on-demand programs, etc. question

Inactive Publication Date: 2007-04-11
STARTIMES SOFTWARE TECH CO LTD
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Problems solved by technology

[0005] If it is a cable TV two-way network, the location movement of the set-top box or the change of the service group can be reflected in the background system of the video on demand in time, but in the cable TV one-way network, the change of the service group will not be reflected in the background system of the video on demand system
[0006] Under the prior art, after the service group is changed due to the moving position of the set-top box, the video-on-demand program must be processed in the background of the system before continuing to watch the video-on-demand program. Watch video-on-demand programs
This obviously reduces the portability of the set-top box

Method used

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  • Method for identifying set top box in service group in one-way network video on demand system

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Embodiment Construction

[0024] In order to illustrate the method for automatically identifying the service group in which the set-top box is used in the present invention, the program transmission standards currently used by the set-top box are firstly described.

[0025] At present, the video-on-demand system transmits cable TV programs using the transmission code stream defined by the MPEG-2 (MPEG is the abbreviation of Moving Picture Expert Group) encoding standard. The transport code stream is a data stream defined according to the ITU-TRecH220, ISO / IECDIS13818-2 and ISO / IEC13818-3 protocols, and its purpose is to encode data for one or more programs in an environment where serious errors may occur transmission and storage. In a VOD system, for one service group, multiple transmission code streams can be transmitted through the optical cable, and each transmission code stream is transmitted at different frequency points and occupies the same bandwidth. In order to distinguish transmission code s...

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Abstract

This invention discloses a method for identifying service groups by set-top-boxes in a single-way network video selection system including: 1, a background of a video selection system sets Tsid for different service groups and said Tsid has a corresponding relation with the service group ID, 2, the set-top-box determines its service group ID based on said Tsid, the optimized way is that said step 1 includes: 111, determining a fixed frequency point corresponding to the service group ID, 112, setting different Tsid on said fixed frequency point for each service group, in step 2, the set-top-box determines the service group where it places according to the Tsid on said fixed frequency point and in step 112, service group ID is applied directly as the Tsid of each service group on said fixed point.

Description

technical field [0001] The invention relates to the technology of a set-top box of a video-on-demand system, in particular to a method for automatically identifying the service group in which a set-top box is located in a one-way network video-on-demand system. Background technique [0002] A video on demand (VOD) system is an interactive video system that can play programs in the form of broadcast according to the user's request, or in a more general sense, it can provide users with various interactive information services. Since the video-on-demand system allows users to choose the programs they need according to their own wishes, users have the initiative of the content, which is more in line with the needs of users. This advantage will make it an important learning, entertainment and service after movies and radio and television. Way. [0003] Video on demand system generally consists of three parts: VOD background, transmission network, and user set-top boxes. The use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/173
CPCH04N21/47202H04N7/17318H04N21/4345
Inventor 刘春根李卫中闫鹏黄兴河代振忠
Owner STARTIMES SOFTWARE TECH CO LTD
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