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. 05, 1995
Filed:
Dec. 10, 1993
Shuichi Tooi, Oyama, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A track ball coordinate data inputting device includes a coordinate data inputting ball rotatably accommodated in an accommodating portion of a frame; a pair of drivers abutted against the ball in two directions forming right angles, the drivers respectively having a rotary shaft supported at one end thereof, respectively; a pair of detecting members for detecting an amount of rotation of the ball, the detecting member including: a pair of encoders mounted near one end of the rotary shafts of the drivers, respectively; a pair of photo-sensers provided for the encoders, respectively, each photo-senser having a light emitting member and a light receiving member which are confronted with each other through the respective encoder; and a holding device for holding the other end of the rotary shafts; and an urging device for urging the other end of the rotary shafts to push the drivers against the ball.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile