Fault detector for a tip and ring circuit, a method of protecting such a circuit and a power supply including the fault detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 25, 2012
Issued Date -
N/A
app pub date -
Mar 28, 2008
filing date -
Mar 29, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fault detector for use with a telephone wire-pair having a return conductor and an output conductor, a method of protecting a telecommunications network including the telephone wire-pair and a power supply for the telecommunications network. In one embodiment, the fault detector includes (1) a passive sensor coupled between Earth and the wire-pair to detect a ground fault thereon, (2) an amplifier having inputs coupled across the passive sensor and configured to characterize the ground fault in terms of a value and (3) a controller configured to receive the value via an output of the amplifier and compare the value to a threshold to determine if the ground fault exceeds a safety limit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully