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:
Apr. 22, 1980
Filed:
Sep. 25, 1978
Applicant:
Inventors:
Hiroshi Hosomizu, Osaka, JP;
Yoshiharu Ohta, Izumi, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354145 ; 354105 ; 354109 ;
Abstract
In a system where a single power source battery is commonly used for the oscillation circuit of an electronic flash device and for another circuit, such as a control circuit for energizing a light source for a data recording for a given period of time, the operation of the oscillation circuit is interrupted by a semiconductor switching device in response to a firing of the flash tube of the flash device. The oscillation circuit interruption continues for a predetermined period during which the aforesaid another circuit is operated from the battery. To this end, the semiconductor switch may be controlled by a delay circuit.