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Machine and card separation condition receiving plug-in unit for digital TV receiver based on intelligent card

A TV receiver and conditional access technology, applied in the field of electronic information, to achieve the effect of simple implementation and low cost

Inactive Publication Date: 2005-08-03
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, there is still a lack of a machine-card separation system solution and its products that meet the machine-card separation requirements and are low-cost in the market at present.

Method used

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  • Machine and card separation condition receiving plug-in unit for digital TV receiver based on intelligent card

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Embodiment Construction

[0016] Such as figure 1 As shown, the present invention includes: a CA plug-in control module, a CA message filtering module, a security authentication module, and a machine-card communication protocol module. The CA plug-in control module includes a CA plug-in interface and a CA plug-in state control sub-module. The CA message filtering module includes (authorization control information) ECM filtering submodule and (authorization management information) EMM filtering submodule. The machine-card communication protocol module includes a safe channel sub-module.

[0017] The CA plug-in interface receives instructions and data from the digital television receiver, and after parsing these instructions and data, sends the internal instructions and data of the present invention to the connected CA plug-in state control sub-module. The CA plug-in state control sub-module controls the state of the corresponding modules according to these internal instructions and core data.

[0018...

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Abstract

A digital TV receiver card separation condition receiving plug-in unit includes a CA plug-in unit control module, a CA information filter module, a safety module, among which, the control module includes a plug-in unit interface and a state control sub-module, the information filter module constitutes ECM filter sub-module and EMM filter sub-module, the card communication protocol module includes a safe channel sub-module, which fully utilizes the soft ware and hardware resources of digital TV receiver system and reasonably divides the CA receive function of digital TV and intelligent card.

Description

technical field [0001] The invention relates to a conditional reception subsystem of a digital television receiver with machine-card separation, in particular to a digital television receiver machine-card separation conditional reception plug-in based on a smart card. It belongs to the field of electronic information technology. Background technique [0002] Conditional Access (CA) is a proprietary technology widely used in various pay telecommunication and TV service systems to help operators manage authorization information of different users. At present, most digital TV receivers use a conditional access subsystem with machine-card integration (or machine-card binding), that is, specific CA software and hardware modules are embedded in digital TV receivers and used in one-to-one correspondence with smart cards. Since digital TV receivers using this kind of conditional access subsystem integrated with a machine card must be designed, produced and sold according to the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N7/16
Inventor 郑世宝袁江海谢强郑猛于晓静
Owner SHANGHAI JIAO TONG UNIV
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