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:
Oct. 21, 2008
Filed:
Nov. 01, 2004
Vishnu Balan, San Jose, CA (US);
Joseph Caroselli, Jr., Palo Alto, CA (US);
YE Liu, San Jose, CA (US);
Chintan M. Desai, San Jose, CA (US);
Jenn-gang Chern, Redwood City, CA (US);
Vishnu Balan, San Jose, CA (US);
Joseph Caroselli, Jr., Palo Alto, CA (US);
Ye Liu, San Jose, CA (US);
Chintan M. Desai, San Jose, CA (US);
Jenn-Gang Chern, Redwood City, CA (US);
LSI Corporation, Milpitas, CA (US);
Abstract
A multi-phase adaptive decision feedback equalizer minimizes post-cursor inter-symbol interference in a current data bit based on values of subsequent data bits in a data communication system. In one form, the receiver includes a plurality of modules each having a respective adaptive decision feedback equalizer. A processor responsive to output signals from each of the plurality of modules generates a plurality of coefficient values. The adaptive decision feedback equalizer has a plurality of taps receiving a respective output signal from one of the modules and a respective coefficient value to generate a respective correction signal. The correction signals are summed with the data signal and processed to recover the data. Pre-calculation of coefficients permits rapid selection of data. Multi-phase operation permits higher data frequencies.