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.

Date of Patent:
Oct. 18, 2022

Filed:

Feb. 11, 2020
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Shunji Saruki, Tokyo, JP;

Shinichirou Mochizuki, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/16 (2006.01); G01D 5/14 (2006.01); G06F 3/0354 (2013.01); G06F 3/0338 (2013.01); G06F 3/038 (2013.01); G01R 33/00 (2006.01); G01R 33/02 (2006.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G01D 5/16 (2013.01); G01D 5/142 (2013.01); G01R 33/0206 (2013.01); G01R 33/093 (2013.01); G01R 33/098 (2013.01); G06F 3/0338 (2013.01); G06F 3/03549 (2013.01);
Abstract

A signal processing circuit processes first to third detection signals output from a magnetic sensor device. The signal processing circuit includes a sphere information generation section that performs first processing and a determination section that performs second processing. With a set of values of the first to third detection signals at a certain timing taken as measurement data and with coordinates that represent the measurement data in an orthogonal coordinate system taken as a measurement point, the first processing includes determining center coordinates of a virtual sphere having a spherical surface approximating the distribution of a plurality of measurement data. The second processing includes determining whether four or more pieces of measurement data are suitable for use in the first processing.


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