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. 04, 2014
Filed:
Sep. 13, 2011
Mohamed Abdalla, Toronto, CA;
Afshin Rezayee, Richmond Hill, CA;
David Cassan, Toronto, CA;
Marcus Van Ierssel, Toronto, CA;
Chris Holdenried, Toronto, CA;
Saman Sadr, Toronto, CA;
Mohamed Abdalla, Toronto, CA;
Afshin Rezayee, Richmond Hill, CA;
David Cassan, Toronto, CA;
Marcus Van Ierssel, Toronto, CA;
Chris Holdenried, Toronto, CA;
Saman Sadr, Toronto, CA;
Semtech Canada Corporation, Burlington, CA;
Abstract
A decision feedback equalizer, transceiver, and method are provided, the equalizer having at least one comparator, the at least one comparator comprising a first stage, comprising a main branch having two track switches with a resistive load, an offset cancellation branch, a plurality of tap branches with transistor sizes smaller than the main branch, in which previous decisions of the equalizer are mixed with the tap weights using current-mode switching, and a cross coupled latch branch; and a second stage, comprising a comparator module for making decisions based on the outputs of the first stage and a clock input, and a plurality of flip-flops for storing the output of the comparator module.