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. 13, 1984
Filed:
Nov. 17, 1982
Applicant:
Inventors:
Kazuo Shiozawa, Hachioji-Shi, Tokyo, JP;
Seiichi Isoguchi, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
35417311 ; 354213 ; 354218 ;
Abstract
A film feeding method wherein film is fed by a film feed motor according to pulses generated per unit moving amount of film, characterized in that the overrun amount of the film feed motor is estimated from the supply voltage obtained at starting of the film feed motor or another electrically-operated drive machine fed with power from the same power source as the film feed motor operated prior to feeding of film. The drive of the film feed motor is controlled in expectation of the estimated overrun amount, or the calculated overrun amount of the film feed motor.