System for illuminating the display of a wrist watch

Details System for illuminating the display of a wrist watch System for illuminating the display of a wrist watch

1974-12-12

1976-02-24

Weldon, Ulysses

58 50R, G04C 300

Patent

active

039396401

ABSTRACT:
A system for illuminating the display of a wrist watch by motion of the wrist. The watch incorporates means for sensing a specific motion of the watch and the sensing means is connected to means to cause the digital display to become active (illuminated).
Storage means is provided for illuminating the display for a 5 second interval so that the user may conveniently read the display. Additional circuitry for displaying the day and month is described.

REFERENCES:
patent: 3161737 (1964-12-01), Hall
patent: 3729923 (1973-05-01), Brigliano et al.
patent: 3742699 (1973-07-01), Bergey
patent: 3810356 (1974-05-01), Fujita
patent: 3841080 (1974-10-01), O'Donald
patent: 3855784 (1974-12-01), Foellner

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