Cable tester
US7683628B1 · kind B1 · utility
3Cited by
27References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2008 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Apr 17, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A physical layer device includes a cable test module that transmits a test pulse on a cable, measures a reflection amplitude, calculates a cable length, and determines a cable status based on the measured amplitude and the calculated cable length. A frequency synthesizer selectively outputs a plurality of signals at a plurality of frequencies on one end of the cable. An insertion loss calculator receives the signals from an opposite end of the cable and estimates insertion loss based on the received signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.