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:
Sep. 21, 2021
Filed:
Jul. 30, 2007
Applicants:
Tim Lan, Sunnyvale, CA (US);
Sheng Lin, Milpitas, CA (US);
Lekun Lin, Milpitas, CA (US);
Assignee:
Huwomobility, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01); H04L 27/26 (2006.01); H04L 25/06 (2006.01); H04L 27/36 (2006.01); H04L 27/38 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2601 (2013.01); H04L 25/061 (2013.01); H04L 27/364 (2013.01); H04L 27/3863 (2013.01);
Abstract
To more efficiently compensate for modulation imbalance, a mobile device modulates and demodulates a calibration tone and generates digital data representing modulation imbalance effects on the calibration tone. Using digital data enables modulation imbalance effects to be quickly estimated using digital signal processing techniques, increasing the number of estimates of modulation imbalance effects calculated. The modulation imbalance estimates are used to refine one or more compensation parameters which are applied to transmitted and/or received signals to compensate for errors caused by modulation.