Camera with computer circuit

Details Camera with computer circuit Camera with computer circuit

1986-05-27

1987-02-24

Perkey, William B.

Boots, shoes, and leggings

364900, G03B 726, G06F 100

Patent

active

046453261

ABSTRACT:
Cameras of the kind having a computer circuit for control actions such as sequence control, etc. are arranged to render the computer circuit inoperative for prevention of an erroneous action in the event of a drop in the power supply voltage. However, in case that the voltage drop takes place during a data transfer process within the computer circuit, if the computer circuit is rendered inoperative immediately after the voltage drop, an erroneous data would be transferred to a memory circuit. Whereas, this invention provides arrangement to keep the computer circuit operative until completion of data transfer in the case of a voltage drop during the process of data transfer to the memory circuit.

REFERENCES:
patent: 4492450 (1985-01-01), Watanabe et al.

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