Electronic timepiece

Details Electronic timepiece Electronic timepiece

1981-04-20

1984-07-10

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With manually actuated display

368 74, 368 80, G04C 1700, G04B 2302

Patent

active

044590318

ABSTRACT:
A motor normally drives a gear-train which controls the hands when the motor is acted upon by pulses it receives from a driving circuit and which come from a divider and a quartz oscillator. In order to set an alarm to the desired time, a stem is moved by means of a crown to a setting position. The gear-train is then driven by a pinion and a wheel meshing with one another. The alarm time is recorded by a counter circuit owing to pulses supplied by a contact of a rotary detector. This time is stored in a memory when a push button is pressed. After the hands are returned to a position indicating the correct time of day, the counter circuit counts the elapsed time, and the alarm is set off when a coincidence circuit detects coincidence between the count of the counter and the data stored in the memory.

REFERENCES:
patent: 4205519 (1980-06-01), Deruns
patent: 4223523 (1980-09-01), Kamijo
patent: 4259737 (1981-03-01), Berney
patent: 4266288 (1981-05-01), Berney
patent: 4358840 (1982-11-01), Ono et al.

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