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. 12, 2008
Filed:
Nov. 20, 2006
Ayako Yamada, Fujieda, JP;
Ayako Yamada, Fujieda, JP;
Murakami Corporation, Shizouka, JP;
Abstract
To provide a position detection apparatus with an expanded range of good linearity in a magnetic sensor's output characteristic with respect to position of a movable body as well as to provide a vehicle mirror angle detection apparatus using the position detection apparatus. Two permanent magnetsandand one Hall-effect sensorare used. The permanent magnetsandare arranged with their relative position fixed. The Hall-effect sensoris placed laterally to the arrangement of the two permanent magnetsand. The permanent magnetsandand Hall-effect sensormove relative to each other in a direction parallel to the arranging direction of the permanent magnetsand. Those surfacesandof the permanent magnetsandwhich face the Hall-effect sensorconstitute magnetic pole faces of opposite polarity and the magnetic pole facesandare placed with an inward tilt. A magnetic sensing direction F of the Hall-effect sensoris set orthogonally to the arranging direction of the permanent magnetsand