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. 20, 2014
Filed:
Apr. 12, 2011
Applicants:
Mark J. Donovan, Derry, NH (US);
Ryan Metivier, Nashua, NH (US);
Michael C. Doogue, Manchester, NH (US);
Inventors:
Mark J. Donovan, Derry, NH (US);
Ryan Metivier, Nashua, NH (US);
Michael C. Doogue, Manchester, NH (US);
Assignee:
Allegro Microsystems, LLC, Worcester, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/30 (2006.01); G01B 7/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetic field sensor and a method used therein provide an output signal in angle units representative of an angle of rotation of a target of and also an output signal in speed units representative of a speed of rotation of the target object. A power control circuit can cycle a magnetic field sensor on and off in accordance with a sensed rotation speed of the object.