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:
Sep. 29, 2009
Filed:
May. 11, 2005
Koji Uemura, Fukuoka, JP;
Yuji Arinaga, Fukuoka, JP;
Takefumi Kabashima, Fukuoka, JP;
Kabushiki Kaisha Yaskawa Denki, Fukuoka, JP;
Abstract
A magnetic encoder unit with a small size and low power consumption is provided which can detect an angle in not more than one-turn and an amount of multi-turn. The magnetic encoder unit includes a permanent magnetmagnetized in a direction perpendicular to a rotation axis of a rotating memberand fixed to the rotating member, a magnetic field detecting elementfixed to a fixed memberso as to be opposite to the permanent magnetwith a gap therebetween, and a signal processing circuitprocessing a signal from the magnetic field detecting element. Here, multi-turn detecting means including a multi-turn magnetic field detecting elementand a multi-turn signal processing circuitdetecting an amount of multi-turn from a signal of the multi-turn magnetic field detecting elementis added thereto.