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. 30, 2017
Filed:
Dec. 15, 2014
Applicant:
Allegro Microsystems, Llc, Worcester, MA (US);
Inventors:
Thomas Kerdraon, Lenzkirch, DE;
Andreas P. Friedrich, Metz-Tessy, FR;
Yannick Vuillermet, La Motte Servolex, FR;
Assignee:
Allegro MicroSystems, LLC, Worcester, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/07 (2006.01); G01R 33/06 (2006.01); G01R 33/09 (2006.01); G01B 7/30 (2006.01); G01B 7/14 (2006.01); G01D 5/14 (2006.01); G01R 33/00 (2006.01);
U.S. Cl.
CPC ...
G01B 7/14 (2013.01); G01D 5/145 (2013.01); G01R 33/0005 (2013.01); G01R 33/06 (2013.01); G01R 33/072 (2013.01);
Abstract
A magnetic field sensor with a magnet is disposed proximate to a ferromagnetic target object having at least one ferromagnetic surface. The magnetic field sensor is operable to sense a relative location between the magnetic field sensor and the ferromagnetic target object along a movement line. In some embodiments, the target object is also spinning about a rotation axis parallel to the movement line. A corresponding method is described.