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:
May. 25, 2010
Filed:
Jun. 09, 2006
Andrew Joo Kim, Atlanta, GA (US);
Edward Gebara, Atlanta, GA (US);
Bruce C. Schmukler, Duluth, GA (US);
Mark W. Dickmann, Palm Harbor, FL (US);
Michael F. Farrell, Atlanta, GA (US);
Michael G. Vrazel, Chamblee, GA (US);
David Anthony Stelliga, Palo Alto, CA (US);
Joy Laskar, Marietta, GA (US);
Charles E. Summers, Woodstock, GA (US);
Andrew Joo Kim, Atlanta, GA (US);
Edward Gebara, Atlanta, GA (US);
Bruce C. Schmukler, Duluth, GA (US);
Mark W. Dickmann, Palm Harbor, FL (US);
Michael F. Farrell, Atlanta, GA (US);
Michael G. Vrazel, Chamblee, GA (US);
David Anthony Stelliga, Palo Alto, CA (US);
Joy Laskar, Marietta, GA (US);
Charles E. Summers, Woodstock, GA (US);
Quellan, Inc., Atlanta, GA (US);
Abstract
Signals propagating on an aggressor communication channel can cause detrimental interference in a victim communication channel. A signal processing circuit can generate an interference cancellation signal that, when applied to the victim communication channel, cancels the detrimental interference. The signal processing circuit can dynamically adjust or update two or more aspects of the interference cancellation signal, such as an amplitude or gain parameter and a phase or delay parameter. Via the dynamic adjustments, the signal processing circuit can adapt to changing conditions, thereby maintaining an acceptable level of interference cancellation in a fluctuating operating environment. A control circuit that implements the parametric adjustments can have at least two modes of operation, one for adjusting the amplitude parameter and one for adjusting the phase parameter. The modes can be selectable or can be intermittently available, for example.