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:
Aug. 30, 2016
Filed:
Apr. 26, 2012
Yuji Kawano, Chiyoda-ku, JP;
Manabu Tsukamoto, Chiyoda-ku, JP;
Hiroshi Kobayashi, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A distortion of a signal of a magnetic position detection device is reduced so that precise position information at a high degree of accuracy can be obtained. The magnetic position detection deviceincludes a magnetic movable body, a bridge circuit, a correction circuit, and a detection circuit. The magnetic movable bodyis magnetized so that N-poles and S-poles alternately appear and has a region in which distances between the N-poles and the S-poles are constant. The bridge circuitis formed of first, second, third, and fourth field detection portionsRRR, andR. The correction circuitis formed of fifth and sixth field detection portionsRandR. The detection circuitdetects a position of the magnetic movable bodyon the basis of a differential output Vout of the bridge circuit.