Temperature compensated quartz wristwatch with memory stored pre

Details Temperature compensated quartz wristwatch with memory stored pre Temperature compensated quartz wristwatch with memory stored pre

1981-01-19

1982-03-23

Reynolds, Bruce A.

Horology: time measuring systems or devices

Regulating means

For compensation

368200, G04C 1900

Patent

active

043216986

ABSTRACT:
A quartz crystal wristwatch is temperature compensated by applying additional pulses to the divider circuit. The number and frequency of application of the additional pulses is stored in memory and based upon mean temperature data for the worn wristwatch on an hourly or monthly basis. The oscillator itself uses little or no temperature compensation.

REFERENCES:
patent: 3812669 (1974-05-01), Wiget
patent: 3895486 (1975-07-01), Hammer et al.
patent: 4015208 (1977-03-01), Hammer et al.

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