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. 25, 2003

Filed:

Jan. 21, 2000
Applicant:
Inventors:

Yoav Hebron, San Diego, CA (US);

Sree A. Raghavan, San Diego, CA (US);

Itzhak Gurantz, San Diego, CA (US);

Assignee:

Conexant Systems, Inc., Newport Beach, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 1/04 ;
U.S. Cl.
CPC ...
H03D 1/04 ;
Abstract

A desired signal having a wide frequency band and including sequential symbols representing digital values is discriminated from a narrow band interfering signal having a carrier frequency in the wide band by initially applying both signals to a filter so both signals are passed to an output of the filter. In response to the filter output, estimates of the values of received symbols of the desired signal are derived and compared to the filter output to derive an error representing signal. A characteristic of the filter is controlled in response to the error representing signal so the filter is adjusted to reject the interfering signal and pass the desired signal.


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