Bidirectional service trigger method and digital TV system with the bidirectional service trigger

A cable digital TV, two-way service technology, applied in transmission systems, simultaneous/sequential multi-TV signal transmission, electrical components, etc., can solve problems such as the inability to obtain breakthroughs in digital TV content and presentation forms
CN101035246BInactive Publication Date: 2010-05-12INST OF ACOUSTICS CHINESE ACAD OF SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF ACOUSTICS CHINESE ACAD OF SCI
Publication Date
2010-05-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a digital TV content-based bidirectional service triggering method and a digital TV system having bidirectional service triggering function. And the method comprises: 1) inserting related network service information in EPG information table of wired digital TV; 2) analyzing EPG information and controlling 'wired digital TV content server' and 'wired network service management server'; 3) adding interactive service in terminal receiver. And the system comprises wired head end and multiple terminals, interconnected through wired TV net, where the wired head end compriseswired digital TV content server, wired network service management server, broadcasting channel modulator module, interactive data channel modulating and demodulating module, EPG edition module, PSI / SIserver, and a wired digital TV and network service control module which implements fusion of wired digital TV and network service at the head end. And the invention improves flexibility, interactiveness and entertainment of the wired digital TV system.
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Description

technical field

[0001] The invention relates to cable television network technology, in particular to a two-way service triggering method based on digital TV content and a digital TV system with two-way service triggering. Background technique

[0002] The transformation of the two-way network of cable television is currently in progress. There are two logical networks on the cable TV network after the two-way transformation: the one-way broadcast network using the DVB standard to transmit digital TV and the two-way data network realized by the DOCSIS protocol. So far, the two networks still operate independently without any connection and sharing. Due to the mutual independence of the two logical networks, the end users of the cable network cannot obtain the breakthroughs in content and presentation forms brought about by the integration of digital TV and data networks.

[0003] If the one-way broadcasting network using the DVB standard to transmit digital TV and the two-...

Claims

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