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LNB (Low Noise Amplifier) module for receiving satellite television signal and corresponding satellite television set top box

A satellite TV and set-top box technology, applied in electrical components, image communication, gigahertz frequency band transmission, etc., can solve the problems of high cost of GPRS module, large wave collector, no base station, etc., and achieve simple connection, cost saving, The effect of solving the area restriction problem

Active Publication Date: 2016-06-08
ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION +3
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  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two defects in the way of GPRS module positioning: 1. The cost of GPRS module is relatively high; 2. The GPRS module needs the support of mobile operator's base station, and there may be no base station in remote areas
Usually the wave collector has a large volume

Method used

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  • LNB (Low Noise Amplifier) module for receiving satellite television signal and corresponding satellite television set top box
  • LNB (Low Noise Amplifier) module for receiving satellite television signal and corresponding satellite television set top box
  • LNB (Low Noise Amplifier) module for receiving satellite television signal and corresponding satellite television set top box

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Embodiment Construction

[0025] The solution of the present invention will be described in detail below in combination with the preferred embodiments thereof.

[0026] image 3 It is a frame diagram of the technical scheme of the LNB of the present invention. The satellite TV signal receiving antenna 21 is used to receive satellite TV signals, and the navigation satellite signal receiving antenna 22 is used to receive satellite signals of the satellite navigation system. Low Noise Amplifier) ​​25 is divided into two routes of signals, one route is the navigation satellite signal, which enters the combiner 32 after passing through the band-pass filter 29 and LNA30, and the other route is the satellite TV signal, which passes through the band-pass filter 26 and is combined with the local oscillator The signal produced by 28 enters the intermediate frequency amplifier 31 after being mixed in the mixer 27, and then enters the combiner 32. After the two-way signal is mixed in the combiner 32, it is output...

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Abstract

The invention discloses an LNB (Low Noise Amplifier) module for receiving a satellite television signal; the LNB module comprises a satellite television signal receiving unit; the satellite television signal receiving unit is used for receiving the satellite television signal and outputting a satellite television intermediate frequency signal; the LNB module further comprises a navigation satellite signal receiving unit; the navigation satellite signal receiving unit is used for receiving a navigation satellite signal, and outputting the signal to a coaxial cable after the satellite television intermediate frequency signal and the navigation satellite signal are mixed by a combiner; and the navigation satellite signal is a Beidou satellite navigation system signal. After the technical scheme disclosed by the invention is adopted, connection wires between a satellite television set top box and the LNB are simple, the problem of area limitation of the satellite television set top box can be effectively solved, and the cost is saved.

Description

technical field [0001] The invention relates to an LNB module for receiving satellite TV signals and a corresponding satellite TV set-top box. Background technique [0002] With the development of information technology, live broadcast star set-top boxes have been greatly promoted in rural areas, but due to counterfeit phones in the market, there are more and more black boxes, and even boxes that are tendered by the state are used in cities, impacting local cable digital set-top boxes market, causing confusion to the market and management. [0003] The Chinese patent application "Satellite TV Set-top Box" with the application number of 201210093138.1 discloses a satellite TV set-top box, including a processor, a radio frequency module, an access device, a power supply, and input and output devices. The GPRS electronic device also includes a GPRS antenna, and the GPRS The antenna includes: a dielectric substrate, a monopole antenna conductor, arranged on the surface of the d...

Claims

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Application Information

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IPC IPC(8): H04N21/426H04N21/61H04N7/20
CPCH04N7/20H04N21/426H04N21/6143
Inventor 何方勇宁尚国高峰毛锐
Owner ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION
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