Camera accessory output information system

Details Camera accessory output information system Camera accessory output information system

1987-11-25

1989-06-13

Perkey, W. B.

35428912, G03B 1700, G03B 720

Patent

active

048396818

ABSTRACT:
An output information system for providing preset information signals from a camera accessory (Y), such as an interchangeable lens or a stroboflash device, to a camera body (X), for use by a microprocessor in the camera body (X), employs a gate array (AN1-AN8, OR1-OR7), a counter (COUNTER 1), and a decoder arrangement (decoders 1,2) for providing an n bit stream of 1's and 0's to the microprocessor in a predetermined bit pattern synchronized to an n pulse clock stream from the camera body (X), without addressing.

REFERENCES:
patent: 4149795 (1979-04-01), Sakurada et al.
patent: 4509842 (1985-04-01), Taniguchi et al.
patent: 4540262 (1985-09-01), Nakai et al.

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