Method for reducing the uplink intrusion noise of cable data system

A data system, noise technology, applied in the direction of cable transmission system, digital transmission system, transmission system, etc., can solve the problem of non-compliance with cable data service interface specifications, etc.

Inactive Publication Date: 2008-08-06
HITRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the enhanced upstream signal technology needs to provide more upstream power than the standard first, so the cable modem of this user group must modify the hardware configuration, and it does not comply with the Cable Data Service Interface Specification (DOCSIS)

Method used

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  • Method for reducing the uplink intrusion noise of cable data system
  • Method for reducing the uplink intrusion noise of cable data system
  • Method for reducing the uplink intrusion noise of cable data system

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Embodiment Construction

[0011] For making purpose of the present invention, feature and effect, now by following specific embodiment, and coordinate accompanying drawing, the present invention is described in detail, as follows:

[0012] figure 2 The method for reducing the uplink intrusion noise of the cable data system of the present invention is illustrated by a schematic flow chart, and image 3 is based on figure 2 The preferred specific embodiment diagram of the process, please also refer to figure 2 and image 3 :

[0013] (1) Provide a plurality of upstream intrusion noise blocking systems 11-1n, and these upstream intrusion noise blocking systems 11-1n are respectively arranged between the top 2 (for example, a cable data terminal router CMTS) and a plurality of user groups A-D, Wherein, each user group has a plurality of users, and each user is respectively a plurality of electronic devices 3 (for example, personal computers, notebook computers or personal digital assistants PDAs, but n...

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Abstract

The invention discloses a method for reducing upstream ingress noises of a cabled yarn data system, in particular relating to a method for eliminating unnecessary extraneous ingress noises by means of determining the upstream connection state of user groups through downstream management messages which are broadcasted by the data top end of a cabled yarn. Due to existence of the extraneous ingress noises in each user group all the while and accumulation of the upstream ingress noises of all the user groups to a top network, the invention determines the upstream network connection states of the top end and various user groups according to data uploadable time and frequency information which are distributed to various user groups by a monitoring top system, an upstream network can be connected only when the user groups can upload signals, and then the ingress noises of the user groups pass by along with the upstream network, thereby accumulation of the ingress noises on the top end can be reduced; the signal quality of the top network can not be reduced due to accumulation of the upstream noises of various user groups, and then the network online efficiency can be maintained to be in the optimum state.

Description

technical field [0001] The present invention relates to a method for reducing uplink intrusion noise in a cable data system, in particular to a method for setting up multiple uplink intrusion noise blocking systems at the top and among multiple user groups, so that these uplink intrusion noise blocking systems can The uploading timing and frequency information in the downlink broadcast information of the top is used to determine the connection status of the uplink channel between the top and each user group, and it is a method to reduce the uplink intrusion noise of the cable data system. Background technique [0002] The network has occupied an indispensable position in people's lives today. Due to the advancement of technology and the increasing demand for network transmission and applications, many different network transmission systems have been derived. One of them is For cable data systems. The advantages of this system are large bandwidth and fast transmission rate. ...

Claims

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Application Information

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IPC IPC(8): H04B3/20H04L27/00H04B3/38
Inventor 吕威志徐敬人
Owner HITRON TECH INC
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