Camera dual switch single data input-multiple data output device

Details Camera dual switch single data input-multiple data output device Camera dual switch single data input-multiple data output device

1991-11-29

1994-05-31

Gellner, Michael L.

G03B 1700

Patent

active

053173570

ABSTRACT:
A data input-output device for a camera comprises a data input interface having first and second switches for generating input data, first and second flip-flops for latching input data generated by opening and closing the first and second switches, a data converting circuit for converting the input data generated by opening and closing the first and second switches to digital data by a combination of the input data generated by opening and closing the first and second switches and of output data of the first and second flip-flops, a plurality of AND circuits in which the digital data converted by the data converting circuit is inputted, and a data output interface for outputting a plurality of digital data from AND logic obtained by the plurality of AND circuits. The device has the advantages of enabling a reduction in the number of terminals when manufactured as an IC, simplifies the pattern of a printed circuit board due to its simple random logic, and permits the mounting of the elements in high density.

REFERENCES:
patent: 4437752 (1984-03-01), Akashi et al.
patent: 4523827 (1985-06-01), Masunaga et al.

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