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:
Jul. 10, 2007
Filed:
Mar. 08, 2005
Ognjen Katic, Vancouver, CA;
Ognjen Katic, Vancouver, CA;
PMC-Sierra, Inc., Santa Clara, CA (US);
Abstract
A decision feedback equalizer (DFE) for a receiver that can reduce jitter is disclosed. The DFE uses an equalizer structure that employs a symbol sampling operation at a decision device, also known as a slicer. In a receiver, the phase of a signal, such as an equalized signal, is typically estimated from zero crossings in the clock recovery operation. Fluctuations in these zero crossings makes phase of the reproduced clock unstable, which decreases error performance in an associated receiver. Embodiments advantageously align inter-symbol interference (ISI) canceling terms from a feedback filter (FBF) relatively well, and thereby provide equalization of a relatively large portion of a symbol period. This advantageously stabilizes the phase of an equalized signal and reduces jitter.