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Method of implementing satellite television secure reception using microcontroller

A technology of microcontroller and satellite TV, applied in the field of communication, can solve the problems of interfering with satellite TV broadcasting, difficult monitoring, management, etc., and achieve the effect of low cost and simple circuit design

Inactive Publication Date: 2008-05-21
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some lawbreakers take advantage of the characteristics of satellite TV broadcasting, such as its wide geographical area, globalization, and difficulty in monitoring and management, to carry out some illegal broadcasts, which greatly interferes with the normal satellite TV broadcasting.

Method used

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  • Method of implementing satellite television secure reception using microcontroller

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Experimental program
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Embodiment Construction

[0022] With reference to Fig. 1, Fig. 2, the inventive method comprises steps:

[0023] ①After the satellite TV signal is demodulated, the digital program transport stream is sent to the buffer, and the buffer then sends the program transport stream to the microcontroller for processing.

[0024] ② The microcontroller analyzes the program transport stream and extracts information from it. The microcontroller of the present invention analyzes the received digital program transmission stream, extracts the analyzed program information table, the program information table is SDT table, PAT table, PMT table, and then extracts the program station name and each information table from the program information table identifier of the .

[0025] ③ The microcontroller judges the legitimacy of the extracted program name. The micro-controller of the invention reads the legal station name stored in the station name memory, compares it with the extracted program station name, and judges its...

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PUM

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Abstract

The invention discloses a method for satellite TV safe receiving through a microcontroller, which relates to a digital information processing technology for managing and controlling satellite TV broadcasting in a communication field. Based on prior related standards and technologies of the satellite digital TV, extracting, judging and filtering of the satellite TV programs are achieved by an embedded microcontroller, and analysis of a transfer stream signal is finished by the microcontroller. Then station names of the TV programs are extracted and compared with the allowable receiving station names in a memory to judge whether the programs belongs to the allowable receiving TV programs or not, and so the transfer stream of the allowable receiving TV programs is passed. The invention has the advantages that the analysis of the transfer stream signal is realized by the microcontroller; a plurality of related work of designing special digital logic circuit can be avoided, and effective management and control to the satellite digital TV broadcasting can be realized.

Description

technical field [0001] The invention relates to a method in the field of communication for realizing safe reception of satellite TV with a microcontroller, which is especially suitable for extracting, judging and filtering satellite digital TV programs, so as to control the transmission stream of only the TV programs that are allowed to be received Through, the effective management and control of satellite TV broadcasting can be realized. Background technique [0002] Since the opening of satellite TV broadcasting in China, the number of TV programs has been greatly improved, and the content of the programs has become more colorful, which has greatly enriched the spiritual and cultural life of the people. However, some criminals take advantage of the wide geographical area, globalization and difficulty of monitoring and management of satellite TV broadcasting to carry out some illegal broadcasting, which greatly interferes with the normal satellite TV broadcasting. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N7/20
Inventor 田素雷李斌周永川孙晶晶李胜利
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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