Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cable TV terminal distribution amplifier

A distribution amplifier and terminal distribution technology, applied in the direction of cable transmission adaptation, etc., can solve the problems of inconvenient installation, few output ports, low reliability and safety, etc., and achieve the effect of convenient installation and flexible wiring methods.

Inactive Publication Date: 2003-07-09
龙永庆
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing cable TV amplifiers are mainly designed for one-way cable TV networks, and the number of output ports is generally less than or equal to three, which cannot meet the needs of two-way cable TV networks for opening interactive services, suppressing upstream noise, and the needs of the majority of cable TV users. The need for multiple output ports
The existing user amplifiers for similar purposes are extremely inconvenient to install, with few output ports, poor performance indicators, low reliability and safety

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cable TV terminal distribution amplifier
  • Cable TV terminal distribution amplifier
  • Cable TV terminal distribution amplifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following are embodiments of the present invention:

[0024] The high-voltage isolation treatment of the present invention adopts a high-voltage capacitor connected in series, and the high-voltage capacitor C 7 、C 11 、C 12 、C 13 、C 14 、C 15 The model is 102 / 2KV; B 1 , B 2 , B 3 , B 4 Assign cores for two; A 1 For the amplifier circuit; A 2 It is the power crimping post. The port IN and the data port DATA are bidirectional ports respectively, and the TV output port TV 1 、TV 2 、TV 3 、TV 4 are unidirectional ports respectively. It works as follows:

[0025] The downlink signal of the two-way cable TV network is connected to the port IN by the subscriber line, and is connected to the port IN through the C 7 After high-voltage isolation and signal coupling, it is transmitted to the bisected magnetic core B 1 After that, it is divided into two signal channels: data channel and TV channel. Data channel signal via L 1 , L 2 、C 16 、C 17 After the notch...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention is a distributing amplifier for cable TV terminal, which has its two-way port to be connected with sub-distributor via high voltage capacitor. The sub-distributor has a signal channel which is a data channel to be connected with two-way data port and a signal channel which is a TV channel to be connected with output port of TV, and the number of output port of TV should be no less than two.

Description

Technical field: [0001] The invention is related to the distribution amplification of the cable television terminal. technical background: [0002] When the cable TV network is installed, the entry level is generally controlled at 60-80dBuV (that is, only one TV set is usually considered), but now it is quite common for a family to have multiple TV ports (TV sets). Existing cable TV amplifiers are mainly designed for one-way cable TV networks, and the number of output ports is generally less than or equal to three, which cannot meet the needs of two-way cable TV networks for opening interactive services, suppressing upstream noise, and the needs of the majority of cable TV users. The need for multiple output ports. The existing user amplifiers for similar purposes are extremely inconvenient to install, have few output ports, poor performance indicators, and low reliability and safety. Invention content: [0003] The purpose of the present invention is to provide a cable ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N7/10
Inventor 龙永庆
Owner 龙永庆
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com