Pulse control for an electric clock

Details Pulse control for an electric clock Pulse control for an electric clock

1978-10-31

1981-03-03

Weldon, Ulysses

Horology: time measuring systems or devices

Chronological

With pulse transforming means

368 86, 368 87, 368217, 368218, 368184, 318685, 318696, G04C 1900

Patent

active

042544912

ABSTRACT:
Electric clock with an oscillator, particularly a quartz oscillator, a frequency divider connected to the quartz oscillator and a control stage connected following the frequency divider, via which control stage a stepping motor, which stepping motor is coupled with the dial train, is able to be applied with pulses of the same or alternating polarity. Each pulse is formed from a number of individual pulses, the pulse duty cycle of the individual pulses reducing toward the end of the first mentioned pulses.

REFERENCES:
patent: 3566600 (1971-03-01), Yoshimura et al.
patent: 3937003 (1976-02-01), Busch et al.
patent: 4127801 (1978-11-01), Leenhonts

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