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:
Dec. 03, 2019
Filed:
May. 16, 2017
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventors:
Eric Burdette, Reddick, FL (US);
Paul A. David, Bow, NH (US);
Christine M. Graham, Bow, NH (US);
Seth Prentice, Epping, NH (US);
Assignee:
Allegro MicroSystems, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/48 (2006.01); G01P 3/52 (2006.01); G01P 13/00 (2006.01); G01B 7/14 (2006.01); G01B 7/30 (2006.01); G01D 5/14 (2006.01); H03M 1/22 (2006.01); G01P 3/487 (2006.01);
U.S. Cl.
CPC ...
G01D 5/14 (2013.01); G01P 3/487 (2013.01);
Abstract
An apparatus and a method provide an output signal indicative of a speed of rotation and/or a direction of movement of a ferromagnetic object having ferromagnetic features and capable of moving. A variety of signal formats of the output signal are described, each of which have pulses at a rate faster than the ferromagnetic features pass by the magnetic field sensor.