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:
May. 18, 2021
Filed:
Jul. 24, 2014
Applicant:
Analog Devices, Inc., Norwood, MA (US);
Inventors:
Raju Hormis, New York, NY (US);
Steven R. Bal, Cary, NC (US);
Antonio Montalvo, Raleigh, NC (US);
David J. McLaurin, Durham, NC (US);
Martin McCormick, Boston, MA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 1/24 (2006.01); H04L 27/36 (2006.01);
U.S. Cl.
CPC ...
H04L 1/243 (2013.01); H04L 27/364 (2013.01);
Abstract
A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. The QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter.