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TV, broadband and telephone transmission system based on cable hfc network

A cable television and telephone transmission technology, which is used in TV systems adapted to optical transmission, cable transmission adaptation, telephone communication, etc., to ensure indoor coverage, secure wireless broadband services, and increase traffic.

Active Publication Date: 2014-10-08
华数传媒网络有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there is no low-cost, high-quality service transmission system to meet the needs of data transmission. Therefore, a complete low-cost solution is urgently needed to complete the transmission of TV, broadband, and telephone data services.

Method used

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  • TV, broadband and telephone transmission system based on cable hfc network
  • TV, broadband and telephone transmission system based on cable hfc network
  • TV, broadband and telephone transmission system based on cable hfc network

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Embodiment Construction

[0022] The present invention will be further described according to the drawings and specific embodiments below.

[0023] System working principle:

[0024] This system includes equipment in the backbone computer room, corridor unit equipment and user home equipment.

[0025] The high-definition signal is modulated into a signal with a frequency of 1.2GHz to 1.6GHz through the equipment in the backbone computer room, which does not occupy the frequency band below 860MHz in the current cable TV network, and the high-definition signal is sent to the corridor unit through optical fiber; the corridor unit equipment is responsible for the optical fiber transmission. The optical signal of CATV optical signal and intermediate frequency signal is converted into radio frequency signal, the optical signal of IP signal is converted into photoelectricity, and the electrical signal of converted IP signal is modulated into EOC signal, 3G signal and WIFI signal, and then the above five The ...

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Abstract

The invention discloses a TV, broadband and telephone transmission system based on a cable TV HFC network, including backbone equipment, corridor unit equipment and user home equipment; the backbone equipment room is connected to the corridor unit, and the corridor unit is connected to the The user's home equipment; the backbone computer room equipment converts the HDTV IP signal into an optical signal of an intermediate frequency signal, and the corridor unit equipment will receive the CATV optical signal, the optical signal of the intermediate frequency signal and the IP signal and convert the CATV optical signal Signal and the optical signal of the intermediate frequency signal are converted into respective radio frequency signals, and the optical signal of the IP signal is modulated into EOC signals, 3G signals and WIFI signals, and the corridor unit equipment mixes and distributes CATV radio frequency signals and intermediate frequency signals according to users The radio frequency signal, the EOC signal, the 3G signal and the WIFI signal, the user home equipment distributes the mixed signal transmitted by the corridor unit equipment according to the room, and can realize the transmission of TV on the cable TV HFC network at the same time , broadband, and telephone signals, so that the previous three networks can realize the integration of three networks in one function, and the construction cost of the network system is greatly reduced.

Description

technical field [0001] The invention relates to a television, broadband and telephone transmission system, in particular to a television, broadband and telephone transmission system based on a cable TV HFC network. Background technique [0002] At present, with the improvement of material culture and spiritual life of the masses, people's demand for interactive TV services is increasing day by day. The two-way transformation of the cable TV network is a necessary prerequisite for the development of interactive TV services. The two-way network after transformation can provide the masses with more personalized, professional, and diversified radio and television and information services, which is conducive to national informatization, Social informatization and family informatization construction. [0003] At the same time, as the general public has increasingly strong demands for services such as high-definition digital TV, high-speed data download, and Internet surfing, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M11/06H04N7/22
Inventor 何沛中赵志峰张卫吴立辉朱盼申权
Owner 华数传媒网络有限公司
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