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:
Oct. 31, 1989
Filed:
Sep. 28, 1988
Applicant:
Inventors:
Assignee:
Olympus Optical Company Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354400 ; 3541731 ; 3541951 ; 318685 ;
Abstract
A motor drive and control apparatus for camera compares the speed of movement of a driven member, as detected by an encoder pulse, against a deceleration curve stored in a storage of CPU so as to turn the motor on and off or brake the motor in conformity to the deceleration curve. When the motor is on adjacent to a target position, the on condition of the motor is limited in synchronism with the encoder pulse.