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:
Aug. 27, 2002
Filed:
Oct. 30, 1998
Applicant:
Inventor:
Dale Douglas Harman, Freehold, NJ (US);
Assignee:
Agere Systems Guardian Corp., Orlando, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/30 ; H03H 7/40 ; H03K 5/159 ;
U.S. Cl.
CPC ...
H03H 7/30 ; H03H 7/40 ; H03K 5/159 ;
Abstract
Taps of a decision feedback equalizer (DFE) are stabilized by adding a small amount of noise to the feedback data symbols. In particular, a DFE structure comprises a feedforward filter, slicer, feedback filter and further includes a noise source. The noise source adds noise to the sliced data signal (provided by the slicer) before further processing by the feedback filter.