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:
Oct. 20, 1987
Filed:
Oct. 31, 1986
Yoshio Serikawa, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A flash photographing system includes a camera unit having an ordinary camera structure for taking a picture and a flash unit having a flash lamp for flashing operation. The system includes a first signal line for transmitting a flash start signal from the camera unit to the flash unit and a second signal line for transmitting a flash unit side information signal from the flash unit to the camera unit. The camera unit includes a mixing circuit for mixing a timing signal with a camera side information signal to produce a composite timing signal which is transmitted via a third signal line to the flash unit which is provided with an interpreting circuit for interpreting the camera side information signal transmitted as a component of the composite timing signal.