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. 15, 1980
Filed:
Jul. 14, 1978
Michio Yagi, Hachioji, JP;
Kazuo Shiozawa, Hino, JP;
Kijiro Suzuki, Tokyo, JP;
Kazuhisa Aratame, Hachioji, JP;
Haruji Ishihara, Kodaira, JP;
Ryushi Shimokawa, Fuchu, JP;
Konishiroku Photo Industry Co., Ltd., both of, JP;
Hitachi, Ltd., both of, JP;
Abstract
The power supply resetting circuit of the invention is adapted to be used in such a type of camera that the shutter release action comprises two steps of strokes: a first stroke by which a power supply circuit for electric circuits mounted in the camera, such as a light measuring circuit, is closed, and a second stroke by which at least the operation of the circuits mounted in the camera is started. The power supply resetting circuit has a self-holding circuit for closing the power supply circuit and additionally mounted to the electric circuits in the camera. The self-holding circuit is adapted to be turned into operation by the second stroke of the shutter release action, substantially simultaneously with the starting of operation of the circuits mounted in the camera, and to be turned inoperative, so as to break the power supply circuit, at the instant at which the photographing sequence is completed or with a certain time lag to that instant.