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:
Nov. 17, 1998
Filed:
Nov. 19, 1996
Tatsumi Horiuchi, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
In an apparatus for detecting a movement of an encoding member capable of generating simultaneously two light beams which are spaced with a predetermined distance therebetween and which move in synchronization with the movement of the encoding member, a line sensor faces the encoding member such that the two light beams move alternately on the line sensor. The line sensor has a length shorter than the distance between the two light beams so that the line sensor receives a single light beam and outputs position information corresponding to a moving position of the received light beam on the line sensor. A detector detects the movement of the encoding member on the basis of the position information output by the line sensor.