Method for implementing zone control of digital television

A technology of digital TV and area control, applied in the direction of analog security/charging system, etc., can solve the problem of high cost, achieve the effect of reducing use, reducing cost, and occupying less system resources

Inactive Publication Date: 2009-05-13
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Both types of zone control are costly to implement

Method used

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  • Method for implementing zone control of digital television

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Experimental program
Comparison scheme
Effect test

Embodiment

[0023] In this example, the entire method for realizing digital TV area control is divided into two major steps: the initial setting and modification of the smart card issuing area code; the insertion of the operating area code of the CAS sub-front end and the terminal area control. Such as figure 1 As shown, steps 101-105 in the figure mainly realize the initial setting and modification of the area code issued by the smart card, and steps 201-207 mainly realize the insertion of the operating area code of the CAS sub-front end and the control of the terminal area. Steps 101, 102 are completed by issuing region code setting management module, steps 201, 202, 203 are completed by operating region code insertion module, and steps 104, 105, 205, 206, 207 are completed by region code setting analysis module.

[0024] Step 101: Generate / change the issuing area codes of each jurisdiction: At the CAS general front end, the operator uses the issuing area code setting management module ...

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Abstract

The invention relates to a method for realizing control to a digital TV region. The invention discloses the method for realizing control to the digital TV region which has little cost and occupies less system resource. The technical scheme is summed up in that: setting and changing an initiation state of an smart card issue region code; generating/changing the issue region code of each region; associating the issue region code and corresponding region smart card; generating update EMM data package of the smart card and sending; STB filtering the smart card state and updating EMM data package; analytically setting the smart card issue region code; initializing native region operating code; generating the operation region code description code; inserting the operating region code description signal into TS flow NIT; modulation outputting TS flow; analytically NIT and obtaining the operation region code description signal; analytically the operation region code description signal; comparing the region code and finishing the region control. The invention reduces use of the hardware equipment, reduces cost and occupies less system resource without needing NIT table distribution center.

Description

technical field [0001] The invention relates to the technical field of digital TV broadcasting, in particular to a method for realizing digital TV area control. Background technique [0002] With the continuous development of the overall conversion of digital TV, the promotion of digital TV services has become the focus of the work of radio and television operators in various places. The digital TV conditional access system (CAS) has become a powerful technical guarantee for operators to realize diversified digital TV business operations. However, due to the different levels of economic development and consumption levels in different regions, the marketing strategies and pricing strategies adopted are also different. At the same time, cable TV is a multi-level network, and the networks at different levels may not belong to each other and operate independently. This requires that a multi-level management system must be implemented in the operation of digital TV. In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/16
Inventor 杨金峰任飞刘贤洪
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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