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A method and system supporting simultaneous descrambling of multiple programs

A technology of program and program mapping table, which is applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problems of limited application expansion function, and only control the short board of live program status, and achieve the effect of strong compatibility

Active Publication Date: 2019-10-11
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system that supports simultaneous descrambling of multiple programs in view of the above-mentioned defects of the prior art. The shortcomings of controlling the status of live programs and the problems of limited application extension functions

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  • A method and system supporting simultaneous descrambling of multiple programs
  • A method and system supporting simultaneous descrambling of multiple programs
  • A method and system supporting simultaneous descrambling of multiple programs

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] See figure 1 , figure 1 It is a flow chart of a preferred embodiment of the method for supporting simultaneous descrambling of multiple programs in the present invention. figure 1 The method shown to support simultaneous descrambling of multiple programs includes:

[0052] Step S100, when the user starts a program, simultaneously obtain the conditional access table and program mapping table corresponding to the program and other programs from the bottom drive through the bottom data channel, and the corresponding Correspondence between application, CA middleware, and underlying...

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Abstract

The invention discloses a method for supporting simultaneous descrambling of multiple programs and a system thereof. The method comprises the steps that a CA core processes the data of a condition receiving table and a program mapping table to notify a CA middleware to start descrambling the required data channel for receiving authorization management information and authorization control information; and the CA middleware finds a corresponding bottom data channel ID according to the index and develops the data channel for receiving the authorization management information and the authorization control information required for respective descrambling of multiple programs on the corresponding bottom data channel and sets a descrambling channel of audio and video control words. According to the method, the CA is enabled to better support application extension, and application extension has low modification influence on the CA middleware part so that the function involving multipath data processing can be more rapidly integrated and the compatibility is higher. The existing CA is enabled not to limit application extension, multiple programs can be simultaneously processed and multiple program messages can be simultaneously managed so as to be applied to multiple scenes.

Description

technical field [0001] The invention relates to the technical field of set-top boxes, in particular to a method and system for simultaneously descrambling multiple programs. Background technique [0002] Nowadays, digital set-top boxes have spread in every household and become a platform for the public to obtain real-time information, leisure and entertainment. People have higher and higher requirements for the service and program quality of set-top boxes. The scrambled program can only be watched after the authorization, and it is one of the basic functions of the set-top box to enable the user to watch the scrambled program after purchasing the authorization. [0003] At present, after almost all set-top box manufacturers cooperate with CA (Conditional Access, Conditional Access) manufacturers, they can enable end users to watch descrambled programs. However, it only supports processing one channel of data, that is, live video. Both the application and the CA middleware ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/418H04N21/443H04N21/4623H04N21/4385
Inventor 姚琴曹晓静
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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