Horology: time measuring systems or devices – Time interval – Electrical or electromechanical
Patent
1983-06-06
1985-08-27
Roskoski, Bernard
Horology: time measuring systems or devices
Time interval
Electrical or electromechanical
368110, 368113, 368102, G04F 800
Patent
active
045375143
ABSTRACT:
An electronic analog timepiece provides for elapsed and intermediate split time measurement with hands indicating fractions of a second, seconds and minutes. Hands do not move except by a user stop or split command. Then the hands rapidly move to positions indicating elapsed or split time. Alternatively, conventional continuous indications are provided except when the internal battery nears depletion, or intermittent operation of the hand indicating fractional seconds provides warning that the battery nears depletion. A wristwatch type analog display stopwatch using a plurality of step motors to drive the hands is produced.
REFERENCES:
patent: 4211066 (1980-07-01), Kusumoto et al.
patent: 4270197 (1981-05-01), Minowa
Kabushiki Kaisha Suwa Seikosha
Roskoski Bernard
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