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. 24, 2015
Filed:
Aug. 12, 2011
Applicants:
Shigetsune Torin, Beaverton, OR (US);
Thomas L. Kuntz, Portland, OR (US);
Inventors:
Shigetsune Torin, Beaverton, OR (US);
Thomas L. Kuntz, Portland, OR (US);
Assignee:
TEKTRONIX, INC., Beaverton, OR (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/01 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04L 25/03057 (2013.01); H04L 2025/03484 (2013.01); H04L 2025/03605 (2013.01); H04L 2025/03668 (2013.01);
Abstract
A two stage adaptive filter for use in a batch receiver includes an equalizer filter having as inputs an acquired signal representing a batch of data points and an equalizer filter value. The filtered signal is batch processed to produce reference and data symbols, which symbols are input to a residual filter to generate iteratively over the batch an error value. The error value is convolved with the equalizer filter value to produce a new equalizer filter value for use by the equalizer filter when a next batch of data points is processed.