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:
Jan. 13, 2004
Filed:
Aug. 20, 2002
Applicant:
Inventors:
Andrew M. Sifferman, Bedford, NH (US);
Roger H. Tancrell, Wilmington, MA (US);
Stephen G. Boucher, Amherst, NH (US);
Assignee:
Airmar Technology Corporation, Milford, NH (US);
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/560 ;
U.S. Cl.
CPC ...
G01S 1/560 ;
Abstract
A time difference between two similar but time-shifted signals is determined using a difference function. For example, similar but time-shifted first and second signals are sampled to generate a discrete mathematical function whose discrete sample points define overlapping ranges. Typically, at least one of the multiple overlapping ranges defined by sample points of the discrete mathematical function can be used to interpolate a time difference between the first and second signals.