Method and device for estimating length of transmission line

A technology for estimating devices and transmission lines, which is applied in the field of estimating the length of transmission lines in Ethernet, which can solve the problems of expensive hardware, pulse signals that cannot conform to Ethernet specifications, and reflection signals that cannot be detected

Inactive Publication Date: 2010-10-27
LINK TECH INC
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the signal length of the incident pulse signal is shortened, the energy of the incident pulse signal is also reduced. Therefore, when the distance between the end of the transmission line and the transmitting end is lon

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
  • Method and device for estimating length of transmission line
  • Method and device for estimating length of transmission line
  • Method and device for estimating length of transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Please refer to figure 1 , figure 1 It is a schematic diagram of the process 10 of the embodiment of the present invention. Process 10 is used to estimate the length of the transmission line for Ethernet, which includes the following steps:

[0033] Step 100: Start.

[0034] Step 110: Generate a detection signal to the transmission line. The detection signal sequentially includes a first pulse and a second pulse with a reverse voltage.

[0035] Step 120: Receive the reflection signal of the detection signal from the transmission line.

[0036] Step 130: Determine the length of the transmission line according to the superimposed waveform of the detection signal and the reflection signal.

[0037] Step 140: End.

[0038] According to the process 10, the embodiment of the present invention generates a detection signal with a first pulse and a second pulse to the transmission line. Wherein, the first pulse and the second pulse have reverse voltages. Next, the embodiment of the pres...

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 invention relates to a method for estimating the length of a transmission line, which comprises the steps of: generating a detecting signal to the transmission line, wherein the detecting signal sequentially comprises a first pulse and a second pulse which have reverse voltages; receiving a reflecting signal of the detecting signal from the transmission line; and judging the length of the transmission line according to a superposed waveform of the detecting signal and the reflecting signal. The name of the invention is method and device for estimating the length of the transmission line.

Description

Technical field [0001] The present invention relates to a method for estimating the length of a transmission line and related devices, and more particularly to a method for estimating the length of a transmission line and related devices for Ethernet. Background technique [0002] Ethernet (Ethernet) is a network hardware standard that follows the IEEE 802.3 protocol, and has been widely used in regional networks. According to different needs, Ethernet devices can be connected through a variety of different network media, such as twisted pair, coaxial cable, and optical fiber, etc., to support tens of millions of bits per second (10Mbps) , One hundred million bits per second (100Mbps) and one billion bits per second (1Gbps) and other bit rate modes. [0003] At present, most of the Ethernet devices are usually connected through twisted pair cables, and support two bit rate modes of 10Mbps and 100Mbps. At the beginning of the network connection, two interconnected Ethernet devices...

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): H04B3/46H04B3/40
Inventor 林冠亨吴宗轩侯文生
Owner LINK TECH INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap