Electronic timepiece with frequency correction

Details Electronic timepiece with frequency correction Electronic timepiece with frequency correction

1980-03-28

1983-03-29

Miska, Vit W.

Horology: time measuring systems or devices

Regulating means

For adjusting the frequency or beat

G04B 1712

Patent

active

043781675

ABSTRACT:
A time correction circuit for an electronic timepiece comprising an oscillator circuit inputting a high frequency standard signal to a divider network, the divider network dividing down the standard signal in a plurality of stages. Correction data is periodically applied to a plurality of divider stages to advance or retard the timing rate when a selected stage achieves a preferred logic state. Occurrence of a logic state in a subsequent divider stage enables the circuits for the next periodic application of the correcting data. Coarse and fine adjustments can be made.

REFERENCES:
patent: 3895486 (1975-07-01), Hammer et al.
patent: 3916612 (1975-11-01), Morokawa et al.
patent: 3922844 (1975-12-01), Sakamoto
patent: 4023344 (1977-05-01), Mukaiyama
patent: 4062178 (1977-12-01), Sakamoto
patent: 4101838 (1978-07-01), Aihara et al.
patent: 4128993 (1978-12-01), Maeda et al.

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