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:
Mar. 25, 2003
Filed:
Jan. 10, 2001
Applicant:
Inventor:
Hitoshi Takemoto, Niigata, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G05B 1/101 ;
U.S. Cl.
CPC ...
G05B 1/101 ;
Abstract
A printer belt drive control circuit comprises: an encoder count circuit ( ) for counting output signals from a drive encoder ( ) attached to a drive motor ( ) and from a motor encoder attached to a belt motor ( ), a servo controller which under control of a CPU ( ) and outputs a rotation speed information of the belt motor ( ) according to tan output signal from the encoder count circuit ( ), and a motor drive signal generation circuit for converting an output information from the servo controller ( ) into a form appropriate for an H-bridge driver circuit ( ) which directly drives the belt motor ( )