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. 23, 2010
Filed:
Sep. 12, 2005
Haoli Qian, Sunnyvale, CA (US);
Xiang Guang Feng, San Jose, CA (US);
Runsheng He, Sunnyvale, CA (US);
Zhipei Chi, Sunnyvale, CA (US);
Haoli Qian, Sunnyvale, CA (US);
Xiang Guang Feng, San Jose, CA (US);
Runsheng He, Sunnyvale, CA (US);
Zhipei Chi, Sunnyvale, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
Systems and techniques relating to image cancellation in received communications signals are described. In one aspect, a received communications signal can include a desired signal and an image signal. A leakage tracing signal can be generated, and the image signal can be removed from the communications signal using the leakage tracing signal mixed with the communications signal. Implementations can include generating a first channel signal and a second channel signal, generating a first filter using the first channel signal and the leakage tracing signal, and generating a second filter using the second channel signal and the leakage tracing signal. Removing the image signal from the communications signal can include filtering the first channel signal using the second filter to obtain a first filtered signal, filtering the second channel signal using the first filter to obtain a second filtered signal, and subtracting the second filtered signal from the first filtered signal.