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:
Dec. 23, 2014

Filed:

Oct. 15, 2010
Applicants:

Hyungjin Kim, Carlsbad, CA (US);

Sridhar Ramesh, Carlsbad, CA (US);

Curtis Ling, Carlsbad, CA (US);

Inventors:

Hyungjin Kim, Carlsbad, CA (US);

Sridhar Ramesh, Carlsbad, CA (US);

Curtis Ling, Carlsbad, CA (US);

Assignee:

MaxLinear, Inc., Carlsbad, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 9/00 (2006.01); H04L 27/00 (2006.01); H04L 25/03 (2006.01); H04L 25/02 (2006.01);
U.S. Cl.
CPC ...
H04L 25/0204 (2013.01); H04L 25/03828 (2013.01); H04L 25/0232 (2013.01); H04L 25/022 (2013.01);
Abstract

To compensate for roll-off while estimating a communication channel, an estimate of the channel is provided using a signal transmitted via the communication channel. The pilot tones positioned along the edges of the estimated channel are divided by the corresponding pilot tones of the received signal to generate a first number of ratios. An algorithm is thereafter applied to the first number of ratios to generate a second number of ratios associated with the non-pilot tones positioned along the edges of the estimated channel. Next, numbers that are inverse of the first and second number of ratios are applied to the pilot and non-pilot tones positioned along the edges of the estimated channel to compensate for the roll-offs in the estimated channel.


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