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Digital television broadcasting copyright protection method

A digital TV broadcasting and copyright protection technology, applied in TV, electrical components, analog security/charging system, etc., can solve the problems of increasing the cost of terminal equipment, restricting the development of digital TV content, affecting the overall conversion of broadcasting and TV, and achieving real-time computing Reduced processing requirements, low cost, easy-to-achieve effects

Inactive Publication Date: 2010-02-03
ACAD OF BROADCASTING SCI SARFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this method is applied to the field of digital TV broadcasting, terminal equipment must be required to perform a large number of real-time calculations on video or audio content in order to realize the detection and extraction of digital watermark information. At present, there is no mass-produced terminal chip that can support digital watermarking; Moreover, the real-time operation of digital watermark information in digital TV content will greatly increase the cost of terminal equipment, so at least from the current reality, this technical solution to protect digital TV copyright through digital watermark is almost impossible to implement
[0005] Now my country's radio and television is implementing the overall conversion from analog to digital. Digital TV has very strong requirements for copyright protection. Copyright protection limits the development of digital TV content, which seriously affects the overall conversion of radio and television.

Method used

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  • Digital television broadcasting copyright protection method

Examples

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no. 1 example

[0028] The first embodiment, the digital television broadcasting copyright protection method of the present embodiment is as follows:

[0029] 1. In the front-end system of the digital TV broadcasting system, according to the copyright protection needs of the broadcasting content, add broadcast marks at the corresponding positions in the digital TV transmission stream.

[0030] The broadcast mark contains recording permission information and copy permission information. The recording permission information indicates whether the terminal user is allowed to record the relevant digital TV content after receiving the digital TV content; the copy permission information indicates whether the terminal user can copy the recorded digital TV content to other terminal equipment. As shown in Table 1.1, the recording permission information and copy permission information are described by two one-byte parameters, namely: the recording permission parameter RecordOrNot, which describes the re...

no. 2 example

[0045] In the second embodiment, the digital television broadcasting copyright protection method of the present embodiment is as follows:

[0046] 1. In the front-end system of the digital TV broadcasting system, according to the copyright protection needs of the broadcasting content, add broadcast marks at the corresponding positions in the digital TV transmission stream.

[0047] The broadcast mark contains recording permission information, copy permission information and copy range information. Recording permission information, indicating whether the end user is allowed to record the relevant digital TV content after receiving the digital TV content; copying permission information, indicating whether the end user can copy the digital TV content recorded by it to other terminal devices; the scope of copying Information indicating the scope of end users to distribute their recorded digital TV content, such as allowing only copy within the home or allowing any unlimited copy, ...

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Abstract

This copyright protection (CP) method includes: (1) In the front end device of the digit TV broadcast system (DTBS), add the broadcast logo (BL) into the corresponding position of digit TV transfer flow according to the broadcast content CP demand. BL permits / restricts to use the broadcast content. (2) Configure a CP module in the terminal receiving device (TR) of DTBS. After TR received the digital TV transfer flow, the CP module auto-checks BL of the transfer flow to control TR from recording / copying according strictly to the requirement of BL to realize copyright protection of the broadcast content. Comparing with the digital water-print technique, this invention lowers the demand on the real-time arithmetic processing ability of TR. It is easy to realize, uses simple equipment and costs low.

Description

technical field [0001] The invention belongs to the technical field of digital television broadcasting, and more specifically relates to a copyright protection method for digital television broadcasting content. Background technique [0002] With the advancement of the digitization of radio, film and television, the development of emerging transmission methods such as the Internet and telecommunications mobile networks, new applications such as Internet TV, distance education, broadband video on demand, and online media appreciation have also brought about easy retention and easy access to radio, film and television programs. A series of problems such as copying and easy piracy. Obtaining, distributing and using digital media content through abnormal channels directly affects and affects the price and market of digital media, causing huge losses to the radio, film and television industry. More high-quality program content harms the interests of the audience. Therefore, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/16H04N7/167
Inventor 王磊李学伟谢锦辉
Owner ACAD OF BROADCASTING SCI SARFT