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:
Nov. 07, 2017
Filed:
Jul. 11, 2016
Applicant:
Entropic Communications, Llc, Carlsbad, CA (US);
Inventors:
Chi-ping Nee, Santee, CA (US);
Branislav Petrovic, La Jolla, CA (US);
Assignee:
ENTROPIC COMMUNICATIONS, LLC, Carlsbad, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H04L 7/033 (2006.01); H04B 1/12 (2006.01); H04B 1/69 (2011.01); H04B 15/04 (2006.01); H03L 7/18 (2006.01);
U.S. Cl.
CPC ...
H04L 7/0331 (2013.01); H03L 7/18 (2013.01); H04B 1/12 (2013.01); H04B 1/69 (2013.01); H04B 15/04 (2013.01);
Abstract
Systems and methods for provided for reducing interference caused by leakage of signals generated by a spread spectrum phase lock loop (SS PLL). Output of SS PLL may be processed to reduce interference. For example, a sinusoidal spreading signal may be used to spread the output of the SS PLL. A notch filter tracks the frequency of the output of the SS PLL to steer the notch in the filter to the instantaneous frequency output from the SS PLL, thus allowing the notch filter to be placed in the path of signals that have unwanted leakage from the SS PLL.