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Encryption of TV programs and method, front end and terminal for playing encrypted TV programs

A TV program and program number technology, applied in electrical components, image communication, selective content distribution, etc., can solve problems such as high cost, slow decryption process, cumbersome and complicated encryption and decryption process, and achieve low cost and simplified encryption Content, the effect of simplifying the encryption process

Active Publication Date: 2017-09-05
SHENZHEN TCL NEW-TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This method of encrypting and decrypting TV programs requires more related hardware or software or a combination of software and hardware to ensure the smooth progress of decryption, and requires the decryption process to be continuous and stable. The decryption process is slow and the cost is high. And the process of encryption and decryption is cumbersome and complicated

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  • Encryption of TV programs and method, front end and terminal for playing encrypted TV programs
  • Encryption of TV programs and method, front end and terminal for playing encrypted TV programs
  • Encryption of TV programs and method, front end and terminal for playing encrypted TV programs

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Embodiment Construction

[0053] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0054] The invention provides a method for encrypting television programs, refer to figure 1 , in one embodiment, the method for this television program encryption comprises the following steps:

[0055] Step S101, extracting program information and frequency point information corresponding to each TV program;

[0056] The front end extracts the program information and frequency point information corresponding to each TV program. The program information includes video type and video packet identification code, audio type and audio packet identification code, etc. For example, the video type (Audio_type), video packet identifier (Audio_PID), audio type (Video_type), and audio packet identifier (audio_type) transmitted in the stream type (stream_type) and elemental packet identifier (elementary_PID) of the program mapp...

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Abstract

The invention discloses a method for encrypting television programs, comprising the following steps: extracting program information and frequency point information corresponding to each television program; The index value is encrypted; the encrypted program information, frequency point information and index value are generated into a data packet, and the data packet is added to the TS stream with a predetermined packet identification code for transmission. The invention also discloses a broadcast encrypted TV The method, the front end and the terminal of the program, the invention can simplify the encryption and decryption process of the encrypted TV program and reduce the cost.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a method for encrypting and playing encrypted television programs, a front end and a terminal. Background technique [0002] With the continuous development and improvement of digital TV technology, more and more services and functions are provided. Traditional encrypted TV programs undergo specific scrambling processing before the TV signal is sent at the front end, and are connected to a decoder at the receiving end, and can only be watched normally within the validity period after payment. At present, there are many encryption systems used at home and abroad, which can encrypt video and audio signals separately. For example, if the video PES (Packetized Elementary Streams, packaged elementary stream) stream and the audio PES stream are all encrypted, when the encrypted program is played on the terminal, the encrypted audio and video stream needs to be continuously decrypted ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/235H04N21/435H04N21/2362
Inventor 王特新
Owner SHENZHEN TCL NEW-TECH CO LTD
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