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Rural broadcasting TV system based on FM optical termining machine and implementing method

A technology of radio and television systems and optical transceivers, which is applied to television systems adapted to optical transmission, components of television systems, and televisions. It can solve problems such as troublesome installation and operation, high investment costs, and unstable performance, and achieve stable and reliable performance. The effect of easy operation

Inactive Publication Date: 2007-07-18
蒋金甫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing rural radio and television systems, such as high investment cost, troublesome installation and operation, and unstable performance, the present invention provides a rural radio and television system based on FM optical transceivers that can reduce costs, is easy to install and operate, and has stable and reliable performance. Implementation

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  • Rural broadcasting TV system based on FM optical termining machine and implementing method
  • Rural broadcasting TV system based on FM optical termining machine and implementing method

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Embodiment 1

[0018] With reference to Fig. 1~Fig. 3, a kind of rural broadcast television system based on FM optical transceiver, comprises the CATV television signal input terminal 1 of band FM signal, is positioned at the optical receiver 2 and FM radio terminal 3, TV television terminal 4 in rural areas, described CATV television signal input terminal 1 connects optical receiver 2 by optical cable, and described optical receiver 2 connects each FM broadcasting terminal 3, TV television terminal 4, and described rural broadcasting television system also comprises FM optical terminal 5, wavelength division multiplexing Optical splitter 6, described FM optical transceiver 5 includes FM frequency modulation signal circuit 7, electric / optical signal conversion circuit 8 and optical signal control circuit 9, described FM frequency modulation signal circuit 7 is connected electric / optical signal conversion circuit 8, described The optical signal control circuit 9 is connected to the electric / op...

Embodiment 2

[0023] Referring to Figures 1 to 3, a method for realizing a rural radio and television system based on an FM optical transceiver, the broadcast and television system adopts the original CATV optical cable network system, and adds an FM optical transceiver 5 and a wavelength division multiplexing optical splitter 6. The FM optical signal is generated in the FM optical terminal 5, and the FM optical signal and the cable TV optical signal are transmitted to the optical receiver 2 through the wavelength division multiplexing optical splitter 6, and are co-cabled with the TV signal to the user to achieve the same frequency insertion.

[0024] In this embodiment, under the premise of no additional optical cables, no additional receiving optical terminals, and constant frequency, the overall scheme of village broadcast insertion is solved by adopting the optical wave multiplexing FM co-frequency insertion technology.

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Abstract

This invention relates to a country broadcast TV system based on FM optical terminals including a CATV signal input end with FM signals, optical receivers in the country and FM broadcast terminals and TV terminals, in which, the CATV signal input end is connected with the optical receivers by cables, and the receivers are connected with the FM broadcast terminals and TV terminals, a FM optical terminal and a WDM light splitter are also included in the system, and the FM optical terminal includes a FM signal circuit, an electric / optical signal conversion circuit and an optical signal control circuit, the output of the electric / optical signal conversion circuit and the CATV signal input end are connected with the input of the WDM splitter, the output of which is connected with the optical receivers. A realization method is also disclosed.

Description

(1) Technical field [0001] The invention relates to a rural radio and television system and its realization method. (2) Background technology [0002] The existing rural FM radio signal insertion system transformation plan can only be transmitted through cables; it needs to add a lot of cable amplifiers to realize the insertion system; the disadvantages are: 1. High investment cost; 2. The formed cable system is troublesome to install and operate, and the performance is poor. unstable. [0003] In rural areas, it is difficult to mix and transmit broadcasting and CATV when the existing cable TV is reconstructed, and broadcasting can only be networked independently. (3) Contents of the invention [0004] In order to overcome the shortcomings of the existing rural radio and television systems, such as high investment cost, troublesome installation and operation, and unstable performance, the present invention provides a rural radio and television system based on FM optical t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/22H04N5/44
Inventor 蒋金甫
Owner 蒋金甫
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