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:
Aug. 04, 2004
Bruno Amizic, Chicago, IL (US);
Mark Fimoff, Hoffman Estates, IL (US);
Jin Kim, Lake Zurich, IL (US);
Sreenivasa M. Nerayanuru, Wheeling, IL (US);
Bruno Amizic, Chicago, IL (US);
Mark Fimoff, Hoffman Estates, IL (US);
Jin Kim, Lake Zurich, IL (US);
Sreenivasa M. Nerayanuru, Wheeling, IL (US);
Zenith Electronics LLC, Lincolnshire, IL (US);
Abstract
A decision feedback equalizer is operated by making first symbol decisions from an output of the decision feedback equalizer such that the first symbol decisions are characterized by a relatively long processing delay, by making second symbol decisions from the output of the decision feedback equalizer such that the second symbol decisions are characterized by a relatively short processing delay, and by determining tap weights for the decision feedback equalizer based on the first and second symbol decisions. The first symbol decisions may be derived from the output of a long traceback trellis decoder. The second symbol decisions may be derived either from the output of a short traceback trellis decoder or from shorter delay outputs of the long traceback trellis decoder.