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A fusion conditional access front-end system and method

A conditional access system and conditional access technology, applied in electrical components, image communication, selective content distribution, etc.

Active Publication Date: 2020-04-07
ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most radio network terminals still use traditional CA technology terminals. In this transitional period, how to make the front-end compatible and support traditional CA terminals and DCAS terminals has become a problem that needs to be solved.

Method used

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  • A fusion conditional access front-end system and method
  • A fusion conditional access front-end system and method
  • A fusion conditional access front-end system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 The architecture diagram of the integrated conditional access front-end system provided by Embodiment 1 of the present invention, the system provided by this embodiment includes both a traditional Conditional Access (CA) service processing module and a Downloadable Conditional Access System (DCAS) The business processing module realizes the compatibility of traditional CA technology and DCAS technology. Such as figure 1 As shown, the system includes a business operation support system (Business Operation Support System, BOSS) 10, a compression splicing module 11, a traditional CA business processing module 12, a DCAS business processing module 13, a scrambler 14, and a multiplexer 15.

[0026] Among them, the compression splicing module 11, the traditional CA service processing module 12 and the DCAS service processing module 13 run on the data processing layer 16 of the integrated conditional access front-end system. The BOSS 10 interfaces with the tradition...

Embodiment 2

[0043] This embodiment further optimizes the business operation support system in the foregoing embodiments.

[0044] When the business operation support system 10 sends the user management system instruction to the traditional conditional access service processing module 12 and / or the downloadable conditional access system service processing module 13 corresponding to the terminal system serving the user, it is specifically used to: obtain the terminal system's Identification; determine the terminal system according to the corresponding relationship between the identification of the terminal system and the traditional conditional access terminal system or the downloadable conditional access terminal system; send the user management system instruction to the traditional conditional access service processing module 12 corresponding to the terminal system serving the user And / or the service processing module 13 of the conditional access system can be downloaded.

[0045] For exa...

Embodiment 3

[0049] This embodiment further optimizes the compression and splicing module in the above embodiments.

[0050] When the compression and concatenation module 11 compresses and concatenates the first entitlement control information data and the second entitlement control information data to obtain a mixed entitlement control information package, it is specifically used to: Obtain the first secret key index and the second secret key index from the data; describe the legality rules of the first secret key index and the second secret key index through microinstructions and bitmap technology; compress the first secret key based on the legality rules An index and a second secret key index; assemble the corresponding data in the first authorization control information data and the second authorization control information data to obtain a mixed authorization control information package.

[0051] Wherein, the first ECM data includes a first key index, and the second ECM data includes a...

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Abstract

The embodiment of the invention discloses a fusion conditional access front-end system and method. The system comprises a business operation support system, a compression and splicing module, a traditional conditional access business processing module, a downloadable conditional access system business processing module, a scrambler and a multiplexer. The traditional conditional access business processing module is used for generating first authorization control information data and first authorization management information data. The downloadable conditional access system business processing module is used for generating second authorization control information data and second authorization management information data. The compression and splicing module is used for compressing and splicing the first authorization control information data and the second authorization control information data, thereby obtaining a mixed authorization control information packet, and sending the authorization control information packet to a port of the scrambler. According to the system and the method provided by the embodiment of the invention, a CA (Conditional Access) technology and a DCAS (Downloadable Conditional Access System) technology can be fused.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of digital television, and in particular to a fusion conditional access front-end system and method. Background technique [0002] To build the Next Generation Broadcasting Network (NGB) and realize the interconnection of national cable television networks, it is necessary to break through the limitations of the existing conditional access (CA) technology. The State Administration of Radio, Film and Television officially promulgated the industry standard GY / T on March 16, 2012 255-2012 "Technical Specifications for Downloadable Conditional Access System". [0003] The Downloadable Conditional Access System (DCAS) is a complete end-to-end (front-to-end) service protection system, which not only has all the scrambling and descrambling, authorization control and Management function, and can support different CAS by downloading different DCAS client software. [0004] During the trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/266H04N21/4623
CPCH04N21/26606H04N21/26613H04N21/4623
Inventor 盛志凡田雪冰孙亮
Owner ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION
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