Digital television fingerprint embedding system and method and conditional access module

A conditional access module and digital fingerprint technology, which is applied to electrical components, image communication, selective content distribution, etc., to achieve the effect of saving resources and realizing reasonable distribution

Inactive Publication Date: 2018-05-15
SHENZHEN STATE MICRO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no digital TV conditional access

Method used

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  • Digital television fingerprint embedding system and method and conditional access module
  • Digital television fingerprint embedding system and method and conditional access module
  • Digital television fingerprint embedding system and method and conditional access module

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] Such as figure 1 As shown, in this embodiment, a digital TV fingerprint implantation system is provided, which includes a digital TV host 10, a conditional access module 20 connected to the digital TV host 10, and a digital fingerprint server 30 set in the cloud.

[0038] The digital TV host 10 is configured to receive broadcast TV transport streams provided by digital TV operators that include fingerprint index information.

[0039] It should be noted that the digital TV host 10 in this embodiment refers to a digital TV receiving terminal capable of supporting a Conditional Access Module (CAM) function, which may be a digital TV or a digital TV set-top box. The digital TV host is provided with a network interface, which can be connected to the Internet. The broadcast television transport stream is provided by a headend network of a digital television operator.

[0040] The conditional receiving module 20 is configured to receive and analyze the fingerprint index info...

Embodiment 2

[0047] Such as image 3 As shown, in this embodiment, a digital TV fingerprint implantation method is provided, which includes:

[0048] Step S1: The digital TV host receives the broadcast TV transport stream containing fingerprint index information provided by the digital TV operator;

[0049] Step S2: After receiving and analyzing the fingerprint index information, the conditional access module sends the fingerprint index information to the digital fingerprint server located in the cloud provided by the digital TV operator, and obtains the fingerprint index information from the digital fingerprint server the corresponding digital fingerprint;

[0050] Step S3: After the conditional access module embeds the digital fingerprint into the specified reserved position in the broadcast TV transport stream, then sends the broadcast TV transport stream embedded with the digital fingerprint to the digital TV host.

[0051] The fingerprint index information includes CA control inform...

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PUM

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Abstract

The invention discloses a digital television fingerprint embedding system and method and a conditional access module. The digital television fingerprint embedding system comprises a digital televisionhost, a conditional access module and a digital fingerprint server, wherein the conditional access module is connected with the digital television host; the digital fingerprint server is arranged ata cloud; the digital television host is used for receiving broadcast television transmission streams including fingerprint indexing information provided by a digital television operator; and the conditional access module is used for acquiring digital fingerprinting corresponding to the fingerprint indexing information from the digital fingerprint server, embedding the digital fingerprinting into specified reserved positions in the broadcast television transmission streams and transmitting the broadcast television transmission streams embedded with the digital fingerprinting to the digital television host. The digital television fingerprint embedding system disclosed by the invention is excellent in dynamic real-time property of the digital fingerprinting and has high relation to the program content.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a digital television fingerprint implantation system, method and conditional access module. Background technique [0002] Digital TV is the mainstream development direction of mass media in the future. Conditional access technology is one of the core technologies of digital TV. Conditional access technology enables digital TV content to be encrypted and transmitted, thereby improving the security of the signal. The legitimate users can watch the program content normally after decrypting the signal, and the users who have not paid can't watch the TV program because of the encryption. [0003] Digital TV Conditional Access Module (CAM) is a solution for multi-crypto technology. Using the digital TV conditional access module can complete the whole process of decryption and descrambling, so as to realize the real separation of machine and card. The main function of the digital TV c...

Claims

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Application Information

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IPC IPC(8): H04N21/418H04N21/254H04N21/266H04N21/4623H04N21/4627H04N21/83
Inventor 李诚彭美意
Owner SHENZHEN STATE MICRO TECH CO LTD
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