Program monitoring management system based on digital water-print and two-way top-set box

A two-way set-top box, digital watermarking technology, which is applied in the components of TV systems, digital video signal modification, analog security/charging system, etc. rate surveys, etc.
CN101047833AInactive Publication Date: 2007-10-03LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Publication Date
2007-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention utilizes digital watermark technology to identify program content and test and process the digital watermark information inserted into a specific program of a 2-way set-top box to finish collection of owners of copyright, the play time and length, then a back-transfer module finishes the transfer of information from the box to the front system to finish further data process, which can also finish the control to the box and the watermark test module by a dual channel.
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Description

technical field

[0001] The invention relates to the field of digital television broadcasting, in particular to a program monitoring and management system based on digital watermarks and two-way set-top boxes. Background technique

[0002] Digital TV is a new technology of broadcasting TV, which uses digital signals instead of analog signals to broadcast TV programs. Compared with the analog cable TV system, one of the main differences in transmission is that one frequency point in the analog cable TV system only broadcasts one set of analog TV program signals, while one frequency point in the digital TV system can broadcast multiple sets of multiplexed digital signals. TV program signal. In a digital TV system, users need to use a set-top box (STB: Set Top Box) to receive digital TV programs broadcast by the headend. STB is also called Integrated Receive Decoder (IRD, Integrated Receive Decoder). Its main function is to convert the received digital TV signal into analog TV...

Claims

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