Electronic timepiece driven by a plurality of stepping motors an

Details Electronic timepiece driven by a plurality of stepping motors an Electronic timepiece driven by a plurality of stepping motors an

1986-03-04

1987-10-27

Roskoski, Bernard

Horology: time measuring systems or devices

Chronological

With power monitor

368205, G04C 2300

Patent

active

047026138

ABSTRACT:
An electronic timepiece which indicates time with a plurality of hands driven by a plurality of motors respectively, has an electric source comprised of energy supplementary means such as solar batteries and accumulating means such as secondary batteries. At least one of the motors is stopped when the remaining energy of the accumulating means becomes lower than a predetermined value, and the timepiece is corrected and driven to indicate the present time by correcting the suspended time when the driving of the motor restarts. Thus, time thereby measurement can be conducted for a long time, restraining the consuming amount of electricity.

REFERENCES:
patent: 4398832 (1983-08-01), Maire et al.
patent: 4419017 (1983-12-01), Okuyama et al.

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