Control device for an electronic wrist watch

Details Control device for an electronic wrist watch Control device for an electronic wrist watch

1975-11-25

1977-06-14

Weldon, Ulysses

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

58 50R, 307247A, G04C 300

Patent

active

040288781

ABSTRACT:
A control device for an electronic wrist watch to enable selection of a variety of possible displays. The circuit of the device incorporates means for memorizing an input control signal derived from a pushbutton and logic and delay means for combining the input control signal and the information in the memory means to provide outputs according to the period for which the pushbutton is actuated. The outputs can be used to selectively connect counters to the display means of the watch.

REFERENCES:
patent: 3810356 (1974-05-01), Fujita
patent: 3823550 (1974-07-01), Bergey
patent: 3852950 (1974-12-01), Yoda et al.
patent: 3871168 (1975-03-01), Marie et al.
patent: 3921385 (1975-11-01), Harding et al.

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