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:
Jul. 11, 2006
Filed:
Nov. 10, 2005
Applicant:
Brian North, Los Gatos, CA (US);
Inventor:
Brian North, Los Gatos, CA (US);
Assignee:
Elantec Semiconductor, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Circuits and methods for coherent noise cancellation are provided. More specifically, circuits and methods are provided for coherent cancellation of noise that is present in a data signal due to noise being present in the source signal (e.g., an optical signal) that is used to produce the data signal. The circuits, which use a subtraction process rather than division, are easy to implement in a chip, and provide for wide bandwidth performance.