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:
Jul. 12, 2016
Filed:
Nov. 13, 2013
Applicant:
Stephane Laurent-michel, Richmond Hill, CA (US);
Inventor:
Stephane Laurent-Michel, Richmond Hill, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01); H04B 15/00 (2006.01); H04B 1/525 (2015.01); H04B 17/21 (2015.01); H04B 17/345 (2015.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H04B 15/00 (2013.01); H04B 1/525 (2013.01); H04B 17/21 (2015.01); H04B 17/345 (2015.01); H04B 2001/0425 (2013.01);
Abstract
Canceling distortion in the receive path of a radio is achieved by down-converting an RF transmit signal to cancel leakage and intermodulation noise in a receive path baseband or intermediate frequency signal. Cancelation may be combined with digital pre-distortion of the transmit signal. Processing may be applied to optimize cancelation. Further cancelation can be achieved by re-modulating the demodulated and error-corrected receive signal, and predicting distortion caused by the transmit path. The cancelation system may be calibrated using a test signal.