Timing circuit for display sequencing in a digital wristwatch

Details Timing circuit for display sequencing in a digital wristwatch Timing circuit for display sequencing in a digital wristwatch

1975-05-22

1978-04-18

Jackmon, Edith S.

58 50R, G04C 300, G04B 1930

Patent

active

040844021

ABSTRACT:
A digital timing circuit in a digital watch with a two digit display. When said circuit is activated by a push button, the two display elements first display the hours information, next are blank for a short duration, then display the minutes information, then go blank until the button is pushed again.

REFERENCES:
patent: 3828548 (1974-08-01), Martin
patent: 3839856 (1974-10-01), Dargent
patent: 3854277 (1974-12-01), Samejima
patent: 3943696 (1976-03-01), Portmann et al.
Robert Lyon-Caen, Diodes, Transistors and Integrated Circuits for Switching Systems, 1968, pp. 351-355.

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