A digital television signal receiving system and receiving method

A technology of digital TV signal and receiving method, applied in image communication, electrical components, selective content distribution, etc., can solve the problems of unable to watch digital TV content, unable to watch digital TV programs, not supported by the main chip, etc., to achieve simple implementation The effect of convenience, low cost and less network bandwidth usage

Active Publication Date: 2016-12-28
SHANDONG TAIXIN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that current computers, mobile phones, tablet computers and other equipment cannot watch digital TV content because their main chips do not support digital TV standards, and the old digital TV chips cannot meet the requirements of new digital TV encryption and decryption technology. In view of problems such as the inability to watch digital TV programs, a digital TV signal receiving system and receiving method is proposed, which enables computers, mobile phones, tablet computers, and TVs using old digital TV chips without modifying the hardware structure. Receive digital TV programs

Method used

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  • A digital television signal receiving system and receiving method
  • A digital television signal receiving system and receiving method
  • A digital television signal receiving system and receiving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Such as Figure 4 Shown, the digital television signal receiving method, its steps are:

[0094] S101: The terminal enters the working state;

[0095] S102: The conditional access front end performs handshake communication with the terminal to confirm the legitimacy of the terminal;

[0096] S103: The terminal receives the authorization management information EMM sent by the conditional reception front end;

[0097] S104: The terminal reads the program list in itself;

[0098] S105: The user selects a program to watch on the terminal;

[0099] S106: The terminal sends a command to lock the selected program to the gateway device;

[0100] S107: The gateway device obtains the SI table and authorization control information ECM related to the selected program from the radio frequency signal of the broadcasting network to the terminal;

[0101] S108: The terminal analyzes the received SI table, authorization control information ECM and authorization management informati...

Embodiment 2

[0108] Such as Figure 5 Shown, the digital television signal receiving method, its steps are:

[0109] S201: The terminal enters the working state;

[0110] S202: The conditional access front end performs handshake communication with the terminal to confirm the legitimacy of the terminal;

[0111] S203: The gateway device obtains the authorization management information EMM from the radio frequency signal of the radio network and sends it to the terminal;

[0112]S204: The terminal reads the program list in itself;

[0113] S205: The user selects a program to watch on the terminal;

[0114] S206: The terminal sends a command to lock the selected program to the gateway device;

[0115] S207: The gateway device obtains the SI table and authorization control information ECM related to the selected program from the radio frequency signal of the broadcasting network to the terminal;

[0116] S208: The terminal analyzes the received SI table, authorization control information ...

Embodiment 3

[0152] Such as Figure 9 Shown, the digital television signal receiving method, its steps are:

[0153] S301: The terminal enters the working state;

[0154] S302: The conditional access front end performs handshake communication with the terminal to confirm the legitimacy of the terminal;

[0155] S303: The gateway device obtains the authorization management information EMM from the radio frequency signal of the radio network and sends it to the terminal;

[0156] S304: The terminal terminal reads the program list in itself;

[0157] S305: The user selects a program to watch on the terminal;

[0158] S306: The terminal analyzes the program selected by the user, and obtains program information including at least a frequency point of the program, program video stream information, and program audio stream information;

[0159] S307: The terminal sends a frequency locking command to the gateway device;

[0160] S308: The gateway device performs a frequency locking operation,...

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Abstract

The invention discloses a digital TV signal receiving system and receiving method, comprising: a terminal enters a working state; receives authorization management information; the terminal reads a program list in itself; a user selects a program to be watched; the terminal sends and locks the selected program Command to the gateway device; the gateway device obtains the SI table and authorization control information related to the selected program from the radio frequency signal of the broadcasting network to the terminal; the terminal parses the received SI table, authorization control information and authorization management information, obtains and resolves scramble the secret data related to the selected program; send the secret data related to descrambling the selected program to the gateway device; the gateway device decrypts the received secret data to obtain the key used to descramble the selected program; use the key to descramble The selected program gets the clear stream of the program; sends the clear stream of the program to the terminal; the terminal receives the clear stream of the program, decodes and plays it. The invention solves the problem that computers, mobile phones, tablet computers and other equipment cannot watch digital TV programs.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a digital television signal receiving system and a receiving method. Background technique [0002] With the rapid development of network technology and chip technology, TVs, computers, mobile phones, tablet computers and other devices all have network functions, and can decode and play video and audio programs. The primary means of audio programming. Digital TV programs are one of the most popular video and audio content. However, due to the special scrambling system of the digital TV system, only chips that support digital TV standards can descramble and watch digital TV programs. Therefore, only digital TV integrated machines or set-top boxes In order to receive digital TV programs, computer chips, mobile phone chips and tablet computer chips that do not support digital TV standards cannot directly watch digital TV programs. In addition, with the continuous upgrading of digi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/4623H04N21/434H04N21/266
CPCH04N21/4345H04N21/4405H04N21/4623
Inventor 陶圣华
Owner SHANDONG TAIXIN ELECTRONICS CO LTD
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