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:
May. 19, 2009
Filed:
Nov. 08, 2004
Ken Matsumoto, Iwate-ken, JP;
Yuji Ito, Aichi-ken, JP;
Nozomi Kitagawa, Aichi-ken, JP;
Takeshi Haruyama, Aichi-ken, JP;
Hiroaki Sasaki, Aichi-ken, JP;
Ken Matsumoto, Iwate-ken, JP;
Yuji Ito, Aichi-ken, JP;
Nozomi Kitagawa, Aichi-ken, JP;
Takeshi Haruyama, Aichi-ken, JP;
Hiroaki Sasaki, Aichi-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
In a force-feedback input device, when the cursor moves on a line parallel to a line between a center of a first button and a center of a second button, an area is determined between a first position, which corresponds to the center of the first button, and a second position, which corresponds to the center of the second button, such that the area extends a distance W on both sides of a mid-point between the first and second positions. In this area, the first and second external-force generation portions are controlled so that a scalar value |F| of an attractive force exerted on an operating portion is decreased according to the equation |F|=d/W·|F| as the cursor moves closer to the mid-point, where d is a distance between the cursor and the mid-point.