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. 09, 2010
Filed:
Oct. 18, 2007
Kouichirou Matsumoto, Kariya, JP;
Takashi Kawashima, Nagoya, JP;
Tatsuya Kitanaka, Nagoya, JP;
DENSO CORPORATION, Kariya, Aichi-Pref., JP;
Abstract
A rotation angle detecting device includes a permanent magnet member, a pair of magnetic sensor elements disposed in a magnetic field formed by the permanent magnet member to provide a pair of output voltage signals when the magnetic field changes as the rotating object rotates; and a rotation angle calculating unit. The rotation angle calculating unit calculates a phase difference between the pair of output voltage signals from a magnitude of the output signal of one of the magnetic sensor elements when detecting a specific magnitude of the output signal of the other magnetic sensor elements whose phase angle is known.