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.

Date of Patent:
May. 26, 2015

Filed:

Mar. 26, 2013
Applicant:

Broadcom Corporation, Irvine, CA (US);

Inventors:

Bruce J. Currivan, Los Altos, CA (US);

Loke Tan, Newport Coast, CA (US);

Thomas Kolze, Phoenix, AZ (US);

Hanli Zou, Rancho Santa Margarita, CA (US);

Lin He, Irvine, CA (US);

Assignee:

Broadcom Corporation, Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/30 (2006.01); H04L 25/03 (2006.01); G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
H04L 25/03891 (2013.01); G06F 1/3215 (2013.01); G06F 1/3278 (2013.01); Y02B 60/126 (2013.01); Y02B 60/32 (2013.01);
Abstract

An apparatus is disclosed to compensate for non-linear effects resulting from the transmitter, the receiver, and/or the communication channel in a communication system. A receiver of the communication system contains an image cancellation module that compensates for images generated during the modulation and/or demodulation process. The image cancellation module includes a fine carrier correction loop to correct for frequency offsets between the transmitter and receiver. The image cancellation module includes a coarse acquisition mode and a decision directed mode. The decision directed mode allows for a larger signal-to-noise ratio for the receiver when compared against the coarse acquisition mode.


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