Wireless digital TV encryption communication system based on mobile phone TV safety module and its working method

A technology of encrypted communication system and security module, which is applied in the field of network and data communication, can solve problems such as waste of bandwidth resources, and achieve the effect of simplifying investment and charging process and facilitating transmission

Inactive Publication Date: 2008-01-09
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, considering that the bandwidth resources of the wireless digital TV system are more precious, the MPEG-2 compression algorithm used in the traditional cable TV will cause a great waste of bandwidth resources; while the new generation of compression standards MPEG-4, H.264, Compression standards such as AVS have matured day by day, and the market calls for a more optimized encoding transmission method

Method used

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  • Wireless digital TV encryption communication system based on mobile phone TV safety module and its working method
  • Wireless digital TV encryption communication system based on mobile phone TV safety module and its working method

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Embodiment Construction

[0020] Below in conjunction with embodiment the present invention is further described.

[0021] As shown in Figure 1, a wireless digital TV encryption communication system based on a mobile phone TV security module includes a front end, a transmission network and a user terminal; the media content data requested by the user is encrypted and encapsulated at the front end and the authorization authentication information data passes through the transmission network Send to the user terminal, the user terminal receives the encapsulated encrypted media content data and authorization authentication information data, the user terminal decrypts and restores the media content data through the authorization authentication information data, and the restored media content data is played on the user terminal.

[0022] The front end can be divided into multiple modules. The front end includes a content management module, a content distribution module, and an authorization authentication ma...

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Abstract

The system comprises frond end, transmission network and user end. The front end encrypts and packs the media content data requested by user; said media content data and the authorized authentication information are transmitted to the user end via transmission network; the user terminal receives the packed and encrypted media content data and the authorized authentication information and uses the authorized authentication information to decrypt and restore the original media content data; the restored media content data is played on the user end. The invention combines the SIM card with the smart card for conditionally receiving the media content data to realize the mobile communication while controlling the receiving of the TV program.

Description

technical field [0001] The invention relates to the field of network and data communication, in particular to a wireless digital TV encrypted communication based on data broadcasting, mobile communication and smart card (MSIM card) technology and its working method, helping to realize mobile value-added services mainly based on video services. Background technique [0002] Driven by information technology, television has entered a transitional stage from analog to digital. Content providers can provide large data volume and high-quality multimedia services through the radio and television network. The entire digital TV industry chain will be worth one trillion yuan in the next few years. At present, there are about 1.4 billion TV sets in the world, among which there are more than 400 million in my country. Except for most of the 112 million cable TV users, they are all potential users of the digital TV terrestrial transmission standard. With the development of wireless ter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/16H04Q7/32H04L9/32
Inventor 朱永亮侯卫兵何天翼
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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