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Power intensifier system for cofrequency transmitting of digital television

A technology of digital TV and booster, which is applied in parts of TV system, parts of color TV, TV, etc. It can solve the problems of digital TV signal quality in areas that cannot be covered, achieve good performance, improve synchronization problems, and easily The effect of installation

Inactive Publication Date: 2008-09-17
SUNWAVE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This system can effectively solve the problem of digital TV signal quality in areas that digital TV transmitters cannot cover

Method used

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  • Power intensifier system for cofrequency transmitting of digital television
  • Power intensifier system for cofrequency transmitting of digital television
  • Power intensifier system for cofrequency transmitting of digital television

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0015] Referring to the description of the above drawings, the present invention relates to a power booster system (see Figure 2) for co-frequency forwarding of digital TV, mainly comprising a donor antenna 1, a tower top amplifier 2, a power booster host 3 and a retransmission antenna 4 , wherein the donor antenna 1 that mainly receives the digital TV signal from the main transmitting station is connected with the input end of the tower top amplifier 2 through a coaxial cable; the power booster host 3 is composed of a first channel filter 5 and a second channel filter 6 , low noise amplifier 7, intermediate frequency processing 8, power amplifying unit 9, CPU control unit 10 and power supply 11, wherein the first channel filter 5, low noise amplifier 7, intermediate frequency processing 8, power amplifying unit 9 and the second channel Filter 6 is connected ...

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Abstract

This invention relates to one digital television with same frequency power strengthening system, which comprises main antenna, tower amplifier, power strengthening host and heavy antenna, wherein the main antenna is connected to tower amplifier; the amplifier host comprises first and second frequency filters, amplifier with low noise, media processor, power amplifier unit, CPU control unit and power; the above parts are connected orderly; the tower amplifier is connected to the input end of the first frequency filter and the second frequency filter output end is connected to the heavy antenna.

Description

technical field [0001] The invention relates to digital TV transmitting equipment, in particular to a power booster system for digital TV same-frequency forwarding. Background technique [0002] Under the situation that digital TV is increasingly popularized, in some shopping malls, underground parking lots, tunnels, high-rise buildings, elevators, entertainment venues, and suburban and remote areas, it will be unimaginable without the coverage of digital TV signals. Combined with the characteristics of digital TV transmitters, it is impossible to set up a transmitting station in every area with poor digital TV signal coverage or signal blind area. Therefore, digital TV co-frequency forwarding power booster system devices are usually set up in these areas. This system device It solved these problems very well. The power booster uses a directional antenna to introduce digital TV signals, filters and amplifies the digital TV signals, but does not perform any frequency convers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/38H03F3/189
Inventor 沈伟峰
Owner SUNWAVE COMM
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