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Machine-card separation method of digital television receiving terminal

A technology for digital TV receiving and machine-card separation, which is applied to parts of color TVs, parts of TV systems, TVs, etc., can solve problems such as the inability to solve the problem of universality of receiving terminals, and achieves improvement of universality and resolution of irrelevance. Effect

Inactive Publication Date: 2009-01-07
郑海涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the CAS agent software and the digital TV receiving terminal are still integrated together, which cannot solve the universality problem of the receiving terminal

Method used

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  • Machine-card separation method of digital television receiving terminal
  • Machine-card separation method of digital television receiving terminal

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] figure 2 It is a flowchart of a machine-card separation method for a digital TV receiving terminal according to an embodiment of the present invention.

[0047]According to the machine-card separation method of the digital TV receiving terminal of the embodiment of the present invention, wherein, there is SD card interface or Mini SD card interface or Micro SD card interface on the receiving terminal; Digital TV receiving terminal software is stored in SD card or Mini SD card or Micro SD card; the information used to decrypt the authorization information and scrambling control information sent by the front end of the conditional access system is stored in the SD card or Mini SD card or Micro SD card, so that the SD card or Mini SD card Or the Micro SD card can decrypt the authorization information and scrambled control in...

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Abstract

The invention provides a machine card separation method used for a digital television receiving terminal; wherein, the receiving terminal is provided with an SD interface or Mini SD card interface or a Micro SD card interface; the digital television receiving terminal software is memorized in the SD card or the Mini SD card or the Micro SD card; information which is used for decrypting the authorized information and scrambling control information sent by the front end of a condition receiving system is memorized in the SD card or the Mini SD card or the Micro SD card, so as to lead the SD card or the Mini SD card or the Micro SD card to decrypt the authorized information and the scrambling information. The technical proposal of the invention improves the generalization of the digital television terminal and reduces the cost.

Description

technical field [0001] The invention relates to the field of digital television, and more particularly relates to a method for separating a machine card of a digital television receiving terminal. Background technique [0002] Currently, digital TVs and handheld TVs are becoming more and more popular. Digital TV can be divided into terrestrial digital TV, cable digital TV and satellite digital TV according to the transmission link. Handheld TV refers to a system that uses portable terminals to receive broadcast TV signals. Portable terminals include but are not limited to mobile phones. [0003] In the field of digital TV and handheld TV (including mobile TV), the following methods are generally adopted: use the front-end system of the Conditional Access System (CAS) to encrypt TV programs at the front-end (such as the broadcasting organization), and encrypt the purchased TV programs. The user sends the authorization. The CAS proxy software corresponding to the CAS front-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N5/00H04N7/167H04N21/418
Inventor 郑海涛
Owner 郑海涛
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