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:
Sep. 05, 1978
Filed:
Aug. 17, 1977
Tomoo Yonemoto, Yotsukaido, JP;
Yukio Morino, Yotsukaido, JP;
Hiroaki Ishida, Yotsukaido, JP;
Shinji Nagaoka, Yotsukaido, JP;
Seiko Koki Kabushiki Kaisha, , JP;
Abstract
A camera with a photoflash circuit for performing the preparatory operation of charging a main capacitor with high voltage produced by an electrical oscillation circuit and flash operation in synchronization with a shutter exposure operation for the taking of a photograph, a data recorder circuit for recording data such as the date on film under electrical control, both circuits being operated with a single battery, characterized in that when both the photoflash and the data recorder circuits are operated, the terminal voltage of the battery is kept unchanged by interrupting the preparatory operation of the photoflash circuit with an operating signal from the data recorder during its recording operation for recording such data on the film with a proper exposure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile