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:
Jun. 04, 2019
Filed:
Sep. 29, 2017
Applicant:
Cavium, Llc, Santa Clara, CA (US);
Inventors:
Ethan Crain, Northborough, MA (US);
Lu Wang, Framingham, MA (US);
Assignee:
Cavium, LLC, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03L 5/00 (2006.01); H04L 7/00 (2006.01); H04L 25/03 (2006.01); H03L 7/08 (2006.01); H04L 7/04 (2006.01); H04L 7/033 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0807 (2013.01); H03L 5/00 (2013.01); H04L 7/0087 (2013.01); H04L 7/048 (2013.01); H04L 25/03057 (2013.01); H04L 7/0331 (2013.01);
Abstract
A data recovery circuit provides compensation for baseline wander exhibited by a data signal. An adaptive equalizer generates a recovered data signal from a data input. A level shifter and low-pass filter provide a compensation signal as a function of the recovered data signal. An adaptation engine adjusts the level of the compensation signal to compensate for baseline wander. The adaptive equalizer generates the recovered data signal as a function of the data input and the compensation signal, thereby providing accurate recovery of the data signal.