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:
Jan. 29, 2008
Filed:
Nov. 05, 2003
Applicants:
Chien-meen Hwang, San Jose, CA (US);
Harish Kutagulla, Austin, TX (US);
Xu Zhou, Sunnyvale, CA (US);
Inventors:
Chien-Meen Hwang, San Jose, CA (US);
Harish Kutagulla, Austin, TX (US);
Xu Zhou, Sunnyvale, CA (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 25/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An OFDM receiver has a DC offset estimator configured for determining a DC offset, in I and Q components of a received OFDM signal having been output by an analog front end, based on filtering prescribed subcarrier components from a preamble segment of the I and Q components. The OFDM receiver removes the determined DC offset from the I and Q components, resulting in respective corrected I and Q components having minimal DC offset.