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Audio video protecting method and audio video terminal

An audio-video and terminal technology, which is applied in the field of audio-video protection methods and audio-video terminals, can solve problems such as malicious copying or distribution of audio-video content, and achieve the effect of avoiding copyright issues

Inactive Publication Date: 2014-03-26
SHENZHEN JIUZHOU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an audio and video protection method and an audio and video terminal to solve the problem that the audio and video content recorded in the existing digital TV set-top box may be maliciously copied or distributed

Method used

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  • Audio video protecting method and audio video terminal
  • Audio video protecting method and audio video terminal
  • Audio video protecting method and audio video terminal

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0028] figure 1 The structure of the audio and video protection system provided by the first embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0029] like figure 1 As shown, the audio and video protection system includes a digital TV system front end 1 and an audio and video terminal 2 . In the present invention, the audio and video terminal may be a digital TV set-top box, a tablet computer or a mobile phone, etc., preferably a digital TV set-top box. The front-end 1 of the digital TV system and the audio-video terminal 2 are connected and communicated in a wireless or wired manner.

[0030] The digital TV system front-end refers to a digital TV front-end system, including a source part, a processing part, a transmission part and a management part. The information source part is mainly used to generate various TV programs and data information, and the sources ...

Embodiment 2

[0041] figure 2 The implementation flow of the audio and video protection method provided by the second embodiment of the present invention is shown, and the details are as follows:

[0042]In step S201, when the audio and video terminal records the program, it receives the transport stream sent by the front end of the digital television system, and the transport stream includes fingerprint information and scrambled audio and video streams.

[0043] In this embodiment, the audio and video terminal receives a transport stream sent by the front end of the digital television system when recording a program, and the transport stream includes fingerprint information and scrambled audio and video streams. The audio and video terminal is a digital TV set-top box, a mobile phone or a tablet computer.

[0044] In step S202, the audio and video terminal parses the transport stream to obtain the audio and video stream and fingerprint information before scrambled, encrypts the audio and...

Embodiment 3

[0049] image 3 The implementation process of the audio and video protection method provided by the third embodiment of the present invention is shown, and the details are as follows:

[0050] In step S301, the front end of the digital television system generates fingerprint information, scrambles the audio and video stream, multiplexes the scrambled audio and video stream and the fingerprint information to obtain a transport stream, and sends the transport stream to the audio and video terminal.

[0051] In the embodiment of the present invention, the audio and video terminal is a digital TV set-top box, a mobile phone or a tablet computer; preferably, a digital TV set-top box. The fingerprint information includes the position of the fingerprint display, the duration of the fingerprint display, the size of the fingerprint font and the color of the fingerprint font, but does not include the fingerprint content.

[0052] The fingerprint content is generated by the audio and vi...

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Abstract

The invention belongs to the field of digital televisions, and particularly relates to an audio video protecting method and an audio video terminal. The method includes the steps that when a program is record at the audio video terminal, and a transport stream sent by the front end of a digital television system is received and includes fingerprint information and a scrambling audio video stream; the transport stream is analyzed to obtain audio video stream and fingerprint information before scrambling, the audio video stream and the fingerprint information are encrypted, and the encrypted audio video stream and the fingerprint information are stored to an appointed storage device; when the recorded program is played at the audio video terminal, the encrypted audio video stream and the fingerprint information are read from the appointed storage device, the encrypted and stored audio video stream and the fingerprint information are decrypted to obtain the audio video stream and the fingerprint information, the audio video stream is played, and fingerprint content is displayed. The audio video stream recorded at the audio video terminal can be protected and prevented from being maliciously copied or recorded.

Description

technical field [0001] The invention belongs to the field of digital television, in particular to an audio and video protection method and an audio and video terminal. Background technique [0002] Digital TV refers to the type of TV that uses digital TV signals in all links from the studio to transmission, transmission, and reception, or that all signal transmissions to the system are transmitted through digital streams composed of 1 and 0 digital strings. With the acceleration of the digitization process of the TV industry, more and more digital multimedia content is transmitted through digital signals, which not only improves the transmission efficiency, but also brings users a more high-definition experience. [0003] In the digital TV system, the encryption protection technology for audio and video streams in the front end and video transmission process has been very mature. However, at the terminal, the audio and video stream obtained after the authorized set-top box ...

Claims

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Application Information

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IPC IPC(8): H04N21/4367H04N21/434H04N21/435H04N21/4405H04N21/4408H04N21/431H04N21/8547
Inventor 崔金龙
Owner SHENZHEN JIUZHOU ELECTRIC
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