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:
Mar. 24, 2015

Filed:

May. 29, 2014
Applicant:

Marvell International Ltd., Hamilton, BM;

Inventors:

Xiaopeng Chen, Sunnyvale, CA (US);

Runsheng He, Sunnyvale, CA (US);

Shuran Wei, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/30 (2006.01); H03H 7/40 (2006.01); H03K 5/159 (2006.01); H04B 3/32 (2006.01); H04B 3/23 (2006.01);
U.S. Cl.
CPC ...
H04B 3/32 (2013.01); H04B 3/231 (2013.01);
Abstract

A compensator generating a compensation signal to compensate for nonlinear echo in an output of a current source. The nonlinear echo is a result of transitioning the current source between an ON state and an OFF state. The compensator includes driving, weighting, function, and compensating circuits. The driving circuit receives a first signal that is based on the output of the current source. The weighting circuit is configured to generate a second signal based on weighted versions of the first signal. The function circuit, based on the second signal, (i) updates each of multiple functions, and (ii) selects a first function. The driving circuit generates a driving signal based on the first function selected by the function circuit. The compensating circuit generates the compensation signal based on the driving signal to compensate for the nonlinear echo provided by the output of the current source.


Find Patent Forward Citations

Loading…