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.:

US 7646195 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 12, 2010

Filed:

Sep. 02, 2004
Applicant:

Anton Salfelner, Pernegg, AT;

Inventor:

Anton Salfelner, Pernegg, AT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/02 (2006.01); G01B 7/30 (2006.01); G01P 3/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for sensing rotation of a wheel includes a sensor and a detector. The sensor is disposed in a wheel, and is operable to detect the earth magnetic field. The detector is operable to detect a change of a sensed earth magnetic field in order to sense rotation of the wheel based on the detected change.


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