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. 14, 2013
Filed:
Mar. 18, 2010
Takeshi Zengo, Kanagawa, JP;
Hiroaki Satoh, Kanagawa, JP;
Susumu Kibayashi, Kanagawa, JP;
Toru Nishida, Kanagawa, JP;
Takeshi Zengo, Kanagawa, JP;
Hiroaki Satoh, Kanagawa, JP;
Susumu Kibayashi, Kanagawa, JP;
Toru Nishida, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A velocity calculation device disclosed includes a computation section that, using as a reference period at each of plural predetermined points in time a individual period detected most recently by a detection section for one or another of plural generating sections, computes for each of the reference periods an average value of the reference period and one or more individual periods for other generating sections of the plural generating sections, detected separately prior to detecting the respective reference period for pulse signals nearest to the reference period; and a calculation section that calculates a velocity related to rotation of the rotation body based on the plural average values computed by the computation section, the number of individual generating sections, and a predetermined rotation angle.