Booster circuit for electronic watch elements

Details Booster circuit for electronic watch elements Booster circuit for electronic watch elements

1982-06-09

1985-07-16

Roskoski, Bernard

Horology: time measuring systems or devices

Signalling means

Time condition responsive

368 64, 368204, 318116, G04C 2116

Patent

active

045293228

ABSTRACT:
A booster circuit in an electronic watch having: hands for indicating time or a display portion such as a panel for displaying time digitally; a lamp for lighting the display portion by electroluminescence (EL element); and a sound generating portion for generating sound at an alarm setting time by vibration of a piezo-electric element. The booster circuit has a boosting member for driving the EL element and a boosting member for driving the piezo-electric element. These boosting members commonly use one coil.

REFERENCES:
patent: 3872330 (1975-03-01), Miller et al.
patent: 3989963 (1976-11-01), Giaccardi
patent: 4232241 (1980-11-01), Hamatani
patent: 4362399 (1982-12-01), Fick

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