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:
Mar. 08, 2022
Filed:
Jan. 27, 2021
Tdk Corporation, Tokyo, JP;
Tatsuya Kato, Tokyo, JP;
Takahiro Moriya, Tokyo, JP;
Toshio Ishikawara, Tokyo, JP;
Toshihiko Oyama, Tokyo, JP;
Toshinao Kido, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A position sensor is provided that can detect a position along a long stroke and that can limit an increase in size. A magnetic sensor has a first magnetic field detecting element that is positioned in a first track; a first processorA that outputs voltage VMwhen intensity of a first magnetic field that is applied to the first magnetic field detecting element is equal to or larger than a threshold and that outputs predetermined high voltage VH when the intensity of the first magnetic field is less than the threshold, wherein the voltage VMis voltage between predetermined low voltage VL and the high voltage VH and indicates positions of the magnets relative to the first magnetic field detecting element; a second magnetic field detecting element that is positioned in a second track; and a second processorB that outputs the low voltage VL when intensity of a second magnetic field that is applied to the second magnetic field detecting element is less than the threshold and that outputs voltage VMwhen the intensity of the second magnetic field is equal to or larger than the threshold, wherein the voltage VMis voltage between the low voltage VL and the high voltage VH and indicates positions of the magnets relative to the second magnetic field detecting element.