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Digital TV set top box

A technology for TV sets and top boxes, applied in electrical components, two-way working systems, selective content distribution, etc., can solve problems such as the inability to apply one-way cable TV networks

Inactive Publication Date: 2006-02-08
孙文欢
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AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcoming that the existing digital TV set-top box can only be applied to the cable TV network after two-way transformation, but cannot be applied to the one-way cable TV network, the purpose of the present invention is to provide a kind of cable TV network that can be applied to two-way network, and digital TV set-top boxes that can be applied to a one-way cable TV network

Method used

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  • Digital TV set top box

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Embodiment Construction

[0010] refer to figure 1 , the present invention adds mobile communication reception and transmission to the existing digital TV set-top box composed of channel decoding module 2, information source decoding module 3, flash memory 4, dynamic random access memory 5, conditional access module 6 and infrared receiver 7. The module 8 is embedded with the user identification card 9 used by the mobile phone, and the telephone universal interface 10 is also attached.

[0011] The signal enters the channel decoding module 2 of the digital TV set-top box through the cable TV network 1, and is decoded according to the existing modulation mode of the digital TV. The channel decoding module 2 should include quadrature phase shift keying (QPSK), quadrature amplitude modulation (QAM) , Orthogonal frequency division multiplexing (OFDM), vestigial sideband modulation (VSB) demodulation function. After the data is decoded by the channel, it is sent to the source decoding module 3 for processi...

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Abstract

A digital TV set top box is composed of a channel decoding module, a signal source decoding module, a flash memory, a dynamic random access memory, a condition receiving module, a infrared receiver and a mobile communication receiving module, a mobile communication transmitting module, a built-in client identification card adopted by the mobile phone, an additive phone universal interface. The invention adopts the mobile data communication means to accomplish all the functions necessary for the digital TV set top box so that it realizes to watch TV program and all kind of data information on the simulated TV on the one-way wired TV network and transmits all kinds of data information. The invention realizes the digital TV transmitting function of the two-way wired TV network on the one-way wired TV network and identifies the client by the client information, and realizes the phone communication function by the phone universal interface.

Description

technical field [0001] The present invention relates to two fields of digital television and mobile communication. A digital TV set-top box controlled by mobile communication technology. Background technique [0002] At present, digital TV set-top boxes receive digital TV and various data information from various transmission media, through demodulation, demultiplexing, decoding and audio and video encoding or through corresponding data analysis modules, watch digital TV programs and digital TV programs on analog TV sets. various data information. In addition to the necessary video-related units, the most important unit of the digital TV set-top box is the conditional access module. The conditional access module can descramble and decrypt digital programs through interactive data transmission to realize user authorization. [0003] The conditional access module of the existing digital TV set-top box transmits uplink and downlink data through a modem module through a telep...

Claims

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Application Information

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IPC IPC(8): H04N7/173H04N21/41
Inventor 孙文欢
Owner 孙文欢
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