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

1978-06-06

Schaefer, Robert K.

58 855, G04B 2708

Patent

active

040928225

ABSTRACT:
A control device for an electronic wrist-watch including a delay means and a pair of flip-flop circuits. The device is actuated by a push button switch and provides one of two possible output conditions dependent upon the length of time for which the push button is depressed.

REFERENCES:
patent: 3694672 (1972-09-01), Butak
patent: 3756013 (1973-09-01), Bergey et al.
patent: 3760582 (1973-09-01), Thiess et al.
patent: 3760584 (1973-09-01), Dargent
patent: 3781573 (1973-12-01), Weeden, Jr.
patent: 3788058 (1974-01-01), Idei et al.
patent: 3852951 (1974-12-01), Sauthier
patent: 3866406 (1975-02-01), Roberts
patent: 3901022 (1975-08-01), Cleusix et al.
patent: 3928959 (1975-12-01), Naito
patent: 3943696 (1976-03-01), Portmann et al.

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