Scrambling non-scrambling transmission flow real-time authenticating device and television device with same

A transmission stream and digital TV technology, applied in the direction of pulse modulation TV signal transmission, analog security/charging system, etc., can solve the problems of reducing the security of digital TV broadcasting systems, achieve seamless integration, good compatibility, and improve security sexual effect

Inactive Publication Date: 2007-11-14
GRADUATE SCHOOL OF THE CHINESE ACAD OF SCI GSCAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In the prior art, the first and second problems have been solved to a certain extent, but the third and fourth problems have not been practically solved, thus reducing the security of the entire digital TV broadcasting system

Method used

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  • Scrambling non-scrambling transmission flow real-time authenticating device and television device with same
  • Scrambling non-scrambling transmission flow real-time authenticating device and television device with same
  • Scrambling non-scrambling transmission flow real-time authenticating device and television device with same

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039]Fig. 2 shows a schematic diagram of a digital television broadcasting system according to the present invention. As shown in Figure 2, the digital television broadcasting system 200 according to the present invention further includes a digital license Certificate issuing subsystem 205 . The digital license issuing subsystem 205 is used to issue a digital license certificate to the TV program providing subsystem 201, and transmit the certificate to the TV program providing subsystem 201 for subsequent operation.

[0040] For different TV program providing subsystems 201, different digital license certificates can be provided, that is to say, the digital license certificates are unique, and it is impossible for two TV program providing subsystems 201 to have the same digital license certificate . Here, the TV program subsystem 201 and ...

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PUM

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Abstract

Security authentication device in realtime for transmission stream with /without scramble installed in set-top box or digital TV includes following units mainly: flow-distribution unit, demultiplexing and data packet recognition and control unit, certificate extraction and authentication unit, digital signature verification unit, control logic unit, and de-scrambling module. The security authentication device in realtime for transmission stream for digital TV possesses following functions: authenticating the received transmission stream for digital TV; de-scrambling the scrambled transmission flow into not scrambled transmission flow decodable by digital TV set; after authenticating not scrambled transmission flow, which is transferred to digital TV directly for playing back. The invention also discloses TV set with security authentication device in realtime for transmission stream for digital TV being installed.

Description

technical field [0001] The invention relates to digital television technology, in particular to a digital television transmission stream real-time security authentication device capable of real-time verification of disturbed and non-disturbance transmission streams and television equipment with the security authentication device. Background technique [0002] With the development of science and technology, digital TV technology came into being. Because digital TV technology has the advantages of high transmission quality, wide range, many users, and fast speed, it will gradually replace traditional analog TV, so it has a very broad market prospect. [0003] Figure 1 shows the basic structure of an existing digital television broadcasting system. As can be seen from FIG. 1 , a digital TV broadcasting system 100 includes a TV program providing subsystem 101 , a TV signal broadcasting subsystem 102 , a network transmission subsystem 103 and a terminal playing subsystem 104 . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N7/16
Inventor 荆继武王晶高能
Owner GRADUATE SCHOOL OF THE CHINESE ACAD OF SCI GSCAS
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