Safety certification device for digital TV signal, and TV equipment with the device

A digital TV signal and security authentication technology, applied in user identity/authority verification, analog security/charging system, etc., can solve the problems of reducing the security of digital TV broadcasting systems, achieve good compatibility and improve security

Inactive Publication Date: 2006-12-06
INST OF INFORMATION ENG CAS
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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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  • Safety certification device for digital TV signal, and TV equipment with the device
  • Safety certification device for digital TV signal, and TV equipment with the device
  • Safety certification device for digital TV signal, and TV equipment with the device

Examples

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] figure 2 A schematic diagram of a digital television broadcasting system according to the present invention is shown. like figure 2 As shown, the digital television broadcasting system 200 according to the present invention further includes a digital license issuing system in addition to a television program providing subsystem 201, a television signal broadcasting subsystem 202, a network transmission subsystem 203 and a terminal playing subsystem 204 205. The digital license issuing system 205 is used to issue a digital license to the TV program providing subsystem 201, and transmit the certificate to the TV program providing subsystem 201 for subsequent operation.

[0046] For different TV program providing subsystems 201, different digital license certificates can be provided, that is to say, the digital license certificates a...

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PUM

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Abstract

The invention comprises: a digital signature extracting unit, a license extracting and examining unit, a digital signature examining unit, a data stream dividing unit and a controlling unit. The invention can prevent the illegal programs inserted into the digital programs by illegal user, and improve the security of digital TV broadcast.

Description

technical field [0001] The invention relates to digital television technology, in particular to a digital television signal security authentication device 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 The basic structure of the existing digital TV broadcasting system is shown. from figure 1 It can be seen that 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 . Wherein the TV program provider provides the digital TV program video stream to the TV signal broadcasting s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/16H04L9/32
Inventor 荆继武王晶林璟锵尚铭
Owner INST OF INFORMATION ENG CAS
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