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:
Feb. 19, 1980
Filed:
Jun. 13, 1977
Hiroshi Hasegawa, Tokyo, JP;
Yoshiaki Ohtsubo, Kawasaki, JP;
Sakuji Watanabe, Yono, JP;
Kouichi Takahata, deceased, late of Tokyo, JP;
Nippon Kogaku K.K., Tokyo, JP;
Abstract
A combination of a camera and a flash unit is provided with a control system for flash photographing. The control system comprises a plurality of signal generating circuits each for converting information to be transmitted between the flash unit and the camera into a signal of a predetermined level with a plurality of detecting circuits each associated with the corresponding signal generating circuits for detecting a signal of a detection level corresponding to a predetermined level, and the signal generating circuits and the associated detecting circuits forming pairs with one of each of the pairs being provided on the camera and the other being provided on the flash unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile