Electronic timepiece

Details Electronic timepiece Electronic timepiece

1978-09-15

1981-09-29

Miska, Vit W.

Horology: time measuring systems or devices

Regulating means

For setting

368200, G04C 900, G04B 1712

Patent

active

042926807

ABSTRACT:
An electronic timepiece includes a frequency supply for providing a relatively high frequency time base signal, a frequency converter responsive to the time base signal to provide a relatively low frequency time unit signal, and timekeeping means responsive to the time unit signal to provide current time information. The current time information is corrected and displayed. A calculation command signal is generated and enables a circuit means to produce, in response to the time unit signal, a frequency error signal indicative of an error in the frequency of the time unit signal. A gain/loss adjustment signal is generated in response to the frequency error signal, and a frequency adjusting circuit is provided for adjusting the frequency of the time unit signal in response to the gain/loss adjustment signal.

REFERENCES:
patent: 3812669 (1974-05-01), Wiget
patent: 3889460 (1975-06-01), Yasukawa et al.
patent: 3895486 (1975-07-01), Hammer et al.
patent: 3914931 (1975-10-01), Tsuruishi
patent: 3943696 (1976-03-01), Portmann et al.
patent: 3953963 (1976-05-01), Nishimura et al.
patent: 3967442 (1976-07-01), Berney
patent: 4045952 (1977-09-01), Kashio

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