The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 04, 2015

Filed:

Apr. 15, 2014
Applicant:

Broadcom Corporation, Irvine, CA (US);

Inventor:

Neven Pischl, Santa Clara, CA (US);

Assignee:

Broadco Corporation, Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01); H04B 1/04 (2006.01); G01R 27/06 (2006.01); H04L 25/02 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0475 (2013.01); G01R 27/06 (2013.01); H04B 2001/0408 (2013.01); H04L 25/0266 (2013.01); H04L 25/0288 (2013.01);
Abstract

A method and system for mitigating transformer saturation in a communication interface is provided. The method may include detecting a change in impedance resulting from transformer saturation of at least one isolation transformer utilized in a network path of a network. The network may conform to an IEEE 802.3af specification where power may be delivered through the network. The method may further comprise generating a pulse at a one end of the network and measuring a reflection at that end to detect the transformer saturation. In response to the impedance change, a transmitter signal may be pre-distorted in order to compensate for the detected transformer saturation, or the power delivered over the network may be disabled.


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