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:
Jan. 22, 2013
Filed:
Nov. 02, 2009
Toru Nishida, Kanagawa, JP;
Hiroaki Satoh, Kanagawa, JP;
Susumu Kibayashi, Kanagawa, JP;
Takeshi Zengo, Kanagawa, JP;
Toru Nishida, Kanagawa, JP;
Hiroaki Satoh, Kanagawa, JP;
Susumu Kibayashi, Kanagawa, JP;
Takeshi Zengo, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a speed detection device comprising: a detected body that includes a plurality of marks arranged along a first direction with intervals therebetween; a detection section that detects intervals of times of appearance of the marks when the detected body relatively moves in the first direction; and a calculation section that calculates a speed of relative movement of the detection section and the detected body on the basis of results of measuring displacements from a reference plane in a second direction, which is orthogonal to the first direction, of locations of the detected body along the first direction and the detected intervals of times of appearance of the marks.