Electronic timepiece

Details Electronic timepiece Electronic timepiece

1979-07-17

1981-06-23

Weldon, Ulysses

Horology: time measuring systems or devices

Regulating means

For setting

368188, 368190, G04C 900

Patent

active

042754631

ABSTRACT:
An electronic timepiece having a stepping motor which can be driven at a normal frequency and at a relatively faster correction frequency includes a manually actuable switch and circuitry responsive to two successive actuations of the switch within a first predetermined time period for effecting a change in the motor drive from the normal frequency to the correction frequency and responsive to a third actuation of the switch after a predetermined time period from said change, to return the motor drive to the normal frequency.

REFERENCES:
patent: 3871168 (1975-03-01), Maire et al.
patent: 3928959 (1975-12-01), Naito
patent: 4030283 (1977-06-01), Sauthier et al.
patent: 4030284 (1977-06-01), Portmann
patent: 4034551 (1977-07-01), Ushiyama
patent: 4067187 (1978-01-01), Sekiya et al.
patent: 4092822 (1978-06-01), Droz et al.

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