Power carrier-based home digital television system and multi-television channel selection method
A digital TV system, digital TV technology, applied in TV system parts, distribution line transmission system, color TV parts, etc., can solve the problem of high digital TV signal transmission rate, home gateway and digital TV connection circuit Multiple problems, to achieve the effect of simple lines
Active Publication Date: 2011-02-16
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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- Abstract
- Description
- Claims
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Problems solved by technology
The home digital TV system realizes the centralized control of multiple TVs in the home, and solves the problem of many connection circuits between the home gateway and digital TV and the high transmission rate of digital TV signals.
Method used
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[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0018] Such as figure 1 As shown, the present invention is a home digital TV system based on power carrier, including a home gateway 1 and a digital TV 2 based on a power carrier. The home gateway 1 and the digital TV 2 are connected to each other through a home power line 16 .
[0019] The home gateway 1 includes a CPU main processor 3, a storage module 4 connected to the CPU main processor 3, a smart card module 5 and a remote control module 6, a tuner 7 connected in turn, a channel demodulator 8, and a demultiplexer 9. Descrambling module 10 and power modulation and demodulation module 11; the tuner 7 receives a digital television signal, and the signal is decoded by a channel demodulator 8 to output a transport stream; the transport stream is passed through a demultiplexer 9 The corresponding program stream is extracted, and after being descrambled by the descra...
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The invention provides a power carrier-based home digital television system, which comprises a power carrier-based home gateway and digital televisions, wherein the home gateway is interconnected with the digital televisions through power lines. The invention also provides a multi-television channel selection method, which comprises the following steps of: connecting the home gateway and a plurality of digital televisions through the home power lines, and sending remote control signals emitted by a remote controller of any digital television to the home gateway through the digital television so as to remotely control the home gateway to select television programs. The method realizes centralized control of the home gateway on the digital televisions, supports multiple digital televisions to freely select different programs, and solves the problems of more connecting loops between the home gateway and the digital televisions and high transmission rate requirement. In addition, the method can support standard-definition and high-definition televisions.
Description
technical field [0001] The invention relates to a family digital television system based on power carrier and a method for selecting channels of multiple televisions. Background technique [0002] At present, most residents use analog TV to watch broadcast TV programs. Even if they watch cable digital TV programs, they convert digital TV signals into analog signals through digital set-top boxes and then transmit them to analog TV. With the continuous promotion of smart homes, home gateways have begun to be widely used. The home gateway can integrate the functions of the set-top box, and can realize centralized control of all TVs in the home, but there are still some problems that need to be solved urgently. Since the set-top box is generally placed in the same room as the TV set, you can use the remote control to control the set-top box to select TV programs, and the home gateway may not be placed in the same room as the TV set because it needs to connect multiple devices. ...
Claims
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Login to View More IPC IPC(8): H04N5/44H04N5/50H04N7/26G08C23/04H04B3/54
Inventor 王召福高怀恩陈永鹏
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP