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:
Mar. 22, 2011
Filed:
Jan. 10, 2007
Applicants:
Chaohuang Zeng, Sunnyvale, CA (US);
Won-joon Choi, Cupertino, CA (US);
Jingnong Yang, Santa Clara, CA (US);
Inventors:
Chaohuang Zeng, Sunnyvale, CA (US);
Won-Joon Choi, Cupertino, CA (US);
Jingnong Yang, Santa Clara, CA (US);
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 1/10 (2006.01); H03K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An Orthogonal Frequency Division Multiple Access (OFDMA) device and method of correcting frequency offset in OFDMA signals computes an estimated frequency offset, which is used for producing a frequency offset-compensated mixer signal using a reference clock signal. The frequency offset-compensated mixer signal is used to produce a digital down-converted signal from an incoming OFDMA signal. The digital down-converted signal is digitally corrected for sampling errors using the estimated frequency offset.