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.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Apr. 28, 2010
Oscar E. Agazzi, Irvine, CA (US);
David Kruse, Newport Beach, CA (US);
Arthur Abnous, Irvine, CA (US);
Mehdi Hatamian, Mission Viejo, CA (US);
Oscar E. Agazzi, Irvine, CA (US);
David Kruse, Newport Beach, CA (US);
Arthur Abnous, Irvine, CA (US);
Mehdi Hatamian, Mission Viejo, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A method and a system for providing ISI compensation to an input signal in a bifurcated manner. ISI compensation is provided in two stages, a first stage compensates ISI components induced by characteristics of a transmitter's partial response pulse shaping filter, a second stage compensates ISI components induced by characteristics of a multi-pair transmission channel. First stage ISI compensation is performed in an inverse response filter having a characteristic feedback gain factor K, during system start-up. Second stage ISI compensation is performed by a single DFE in combination with a MDFE operating on tentative decisions output from a Viterbi decoder. As the DFE of the second stage reaches convergence, the feedback gain factor K of the first stage is ramped to zero.