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:
Apr. 17, 2007
Filed:
Aug. 29, 2003
Daniel M. Castagnozzi, Lexington, MA (US);
Keith Michael Conroy, Salem, NH (US);
Warm Shaw Yuan, San Diego, CA (US);
Omer Fatih Acikel, San Diego, CA (US);
Daniel M. Castagnozzi, Lexington, MA (US);
Keith Michael Conroy, Salem, NH (US);
Warm Shaw Yuan, San Diego, CA (US);
Omer Fatih Acikel, San Diego, CA (US);
Applied Micro Circuits Corp., San Diego, CA (US);
Abstract
A modified gain system and method are provided for non-causal channel equalization using feed-forward and feedback compensation. The method comprises: receiving a serial data stream first bit (present) input; comparing a second bit (past) value, received prior to the first bit input, to a third bit (future) value received subsequent to the first bit input; modifying the amplitude of the first bit input to compensate for the effect of the second and third bit values being equal; and, determining the value of the first bit input by comparing the amplitude modified first bit input to a Vopt threshold. When only one of the second and third bit values is a '1' value, a unity amplitude modifier is supplied. When the second and third bit values are a '1', a low amplitude modifier is supplied. When the second and third bit values are a “0”, a high amplitude modifier is supplied.