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Authorization system and method

An authorization system and unauthorized technology, applied in the field of an authorization system in a digital cable TV system, can solve the problems of inability to authorize in time and low authorization efficiency, so as to improve authorization priority, improve efficiency, and avoid blind rotation. Effect

Inactive Publication Date: 2008-03-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide an authorization system and method to solve the shortcomings of the existing authorization system, such as low authorization efficiency and inability to authorize in time

Method used

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  • Authorization system and method
  • Authorization system and method

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Embodiment Construction

[0041] Please refer to Figure 3, which is a structural diagram of the authorization system provided by the present invention. The authorization system provided by the present invention includes:

[0042] Front-end CA (Condition Access);

[0043] A set-top box (STB) is connected with the front-end CA, and a subscriber identification module is built-in or plugged into the STB, and what is transmitted between the front-end CA and the STB is a transport stream TS (Transfer Stream), and the transport stream includes : Entitlement control information ECM (Entitlement Control Message), front-end CA generates entitlement management information EMM (Entitlement Management Message) and TV program information according to the user authorization provided by the user management system SMS, wherein, EMM is for users, and ECM is for TV programs , EMM and ECM information and TV program information are multiplexed together in the transport stream TS (Transfer Stream) and transmitted through th...

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Abstract

A authoritative system contains front end CA, set-top-box (STB) connected with CA, certification server connected with CA, bi-directional module connected respectively with certification and STB. Said invention also provides certification method used in STB end and certification server, and solves the defect of low effect and can not authorize in time of current authoritative system.

Description

technical field [0001] The invention relates to the technical field of digital cable TV, and specifically refers to an authorization system and method applied in the digital cable TV system. Background technique [0002] As users have higher and higher requirements for TV programs, traditional TVs that receive TV programs through antennas cannot meet the requirements, and cable TV is widely used because it can provide rich and high-quality TV programs. [0003] The application of cable TV is mainly carried out on the cable TV network. Due to the cost of network construction, the operators generally have to charge the cable TV users. However, in the traditional cable TV network, due to the imperfect authorization system, it often occurs Some illegal users receive cable TV for free, so in the digital TV system that has risen day by day in recent years, in order to effectively control the payment of TV users, a conditional access system CAS (Conditional Access System) has been ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/16H04N7/173
CPCH04N7/163H04N21/4405H04N21/63345H04N21/658H04N7/17309
Inventor 胡峻岭刘进民鞠德刚姚峻
Owner HUAWEI TECH CO LTD