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:
Sep. 19, 2006
Filed:
Oct. 01, 2003
Applicants:
Stephen G. Boucher, Amherst, NH (US);
Frederic S. Boericke, Ii, Mount Vernon, NH (US);
Inventors:
Stephen G. Boucher, Amherst, NH (US);
Frederic S. Boericke, II, Mount Vernon, NH (US);
Assignee:
Airmar Technology Corporation, Milford, NH (US);
Primary Examiner:
Int. Cl.
CPC ...
G01F 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speed sensor for a marine vessel includes a correction circuit to correct any sensor non-linearities so that the sensor produces an output with a pulse stream having a constant pulse rate, and reduces the pulse-to-pulse variations of the pulse stream. The circuit can standardize the pulse stream to have a frequency corresponding to a standard rate.