Television signal receiver, system and method
A TV signal and receiving device technology, which is applied in the field of digital TV signal reception, can solve the problems such as inconvenience for users to pay for viewing
Inactive Publication Date: 2010-06-30
HAIER GRP CORP +1
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- Abstract
- Description
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- Application Information
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Problems solved by technology
If the user needs to watch different digital TV programs on each TV, the above-mentioned technical solution cannot meet the requirements, and can only purchase multiple set-top boxes and matching smart cards from the operator, and pay for each TV to watch digital TV programs through different accounts , but this brings inconvenience when users pay to watch
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[0028] figure 1 It is a functional block diagram of a television signal receiving device, as shown in the figure, including: a channel demodulation module 101 and a demultiplexing module 102, a smart card interface module 105, an information acquisition module 107, a descrambling module 103, a decoding module 104, and a wireless communication module 106 , authentication module 108 and viewing control module 109. Wherein, the authentication module 108 and the viewing control module 109 can be set in the wireless communication module 106 . The smart card interface module 105 is connected with an interface into which the smart card 2 can be inserted.
[0029] The channel demodulation module 101 is used for receiving TV signals and converting the TV signals into TS stream signals.
[0030] The demultiplexing module 102 is used to demultiplex the received TS stream signal, and obtain entitlement control information ECM, entitlement management information EMM, video PES stream, au...
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The invention provides a television signal receiver which comprises a signal receiving unit, an information acquisition module, a smart card interface module, a communication module, a descrambling module and a deciphering module, wherein the signal receiving unit is used for receiving a television signal; the information acquisition module is used for acquiring deciphering-required information from the television signal received by the signal receiving unit or from the communication module, and acquiring deciphering information from the smart card interface module; the smart card interface module is connected with a smart card and used for acquiring the deciphering information from the smart card and supplying the deciphering-required information to the information acquisition module by inputting the deciphering-required information acquired by the information acquisition module to the smart card; the communication module is used for receiving the deciphering-required information from the external, supplying the deciphering-required information to the information acquisition module, and transmitting the deciphering information acquired by the information acquisition module corresponding to the deciphering-required information to the external; and the descrambling module is used for descrambling the video information and / or audio information in the television signal received by the signal receiving unit according to the deciphering information acquired by the information acquisition module from the smart card interface module. The invention also provides television signal receiving system and method.
Description
technical field [0001] The invention relates to the field of digital television signal reception, in particular to a television signal reception device, system and method. Background technique [0002] At present, most digital TV broadcasts are encrypted and must be paid for viewing. When watching, a smart card is often used to decrypt the signal. The digital TV broadcasting signal adopts the MPEG-2 audio and video compression standard. In MPEG-2, two forms of bit streams are defined, namely the transport stream TS and the program stream PS. Program stream PS is generally used in a relatively error-free environment, such as interactive multimedia services, and its length is variable. The transport stream TS is used in an error environment, such as the terrestrial broadcast transmission of digital TV, and its packet length is 188Bytes or 204Bytes. [0003] The formation process of the transport stream TS: the encoder encodes the sampled video data stream and audio data to ...
Claims
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Inventor 翟翌立龚克鲁杨斌田青李臣夏雷鹏边学友刘丰强李焕杰
Owner HAIER GRP CORP