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. 10, 2018
Filed:
Nov. 19, 2014
Applicant:
Memsic, Inc., Andover, MA (US);
Inventors:
Daniel Vasquez, San Jose, CA (US);
Yongyao Cai, Acton, MA (US);
Shuo Gu, Andover, MA (US);
James Fennelly, Stoneham, MA (US);
Assignee:
MEMSIC, INC., Andover, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G01R 33/096 (2013.01);
Abstract
Systems and methods to detect when the external magnetic field becomes higher than the saturation field of AMR material are described. Approaches include saturation detection by combining sensors with different full-scale ranges, saturation detection using DC current and saturation detection by arranging sensitive axes at 45° offsets.