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. 28, 2016
Filed:
Mar. 20, 2014
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Cheng-Han Wang, San Jose, CA (US);
I-Liang Lin, Fremont, CA (US);
Liang Zhao, Sunnyvale, CA (US);
Hong Sun Kim, San Jose, CA (US);
Yi Zeng, San Jose, CA (US);
Assignee:
QUALCOMM INCORPORATED, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01); H04L 27/34 (2006.01); H04L 27/36 (2006.01); H03D 3/00 (2006.01);
U.S. Cl.
CPC ...
H04L 27/3405 (2013.01); H03D 3/008 (2013.01); H03D 3/009 (2013.01); H04L 27/364 (2013.01); H03C 2200/0041 (2013.01); H03D 2200/0045 (2013.01);
Abstract
A circuit for performing a residual side band calibration is described. The circuit generally includes a phase imbalance detection circuit. The phase imbalance detection circuit may include a limiter. The phase imbalance detection circuit may be independent of gain imbalance. The circuit may also include a phase imbalance correction circuit. The phase imbalance detection circuit may control coupling between an inphase path and a quadrature path.