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:
Jul. 21, 2015
Filed:
Oct. 15, 2010
Kenichi Furukawa, Tokyo, JP;
Kenichi Furukawa, Tokyo, JP;
MITSUMI ELECRIC CO., LTD., Tokyo, JP;
Abstract
An operation input device includes a base part including a placement surface on which an inductor is placed; a displacement member including a first surface facing the placement surface and a second surface configured to receive application of a force, and configured to cause the inductance of the inductor to vary with the approach of the first surface to the placement surface due to the application of the force on the second surface; a support member configured to support the displacement member in such a manner as to allow the displacement of the displacement member; a detection part configured to detect a variation in the inductance by feeding a first pulse signal to the inductor; and a control part configured to generate a magnetic field to displace the second surface by feeding a second pulse signal different in phase from the first pulse signal to the inductor.