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:
Jul. 12, 2022
Filed:
Feb. 21, 2020
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventors:
Assignee:
Allegro MicroSystems, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/14 (2006.01); G01D 5/16 (2006.01); G01P 3/44 (2006.01);
U.S. Cl.
CPC ...
G01D 5/145 (2013.01); G01D 5/16 (2013.01); G01P 3/44 (2013.01);
Abstract
Methods and apparatus for an orientation insensitive speed sensor. Magnetic field sensing elements can be located on a circle, for example, to generate first and second channel signals which can be combined to generate an output signal. The location of the magnetic field sensing elements reduces the effects of stray fields. Embodiments can include true power own state processing to determine target position during start up.