Horology: time measuring systems or devices – Time interval – Electrical or electromechanical
Patent
1993-12-08
1995-01-31
Miska, Vit W.
Horology: time measuring systems or devices
Time interval
Electrical or electromechanical
368113, G04F 800
Patent
active
053863992
ABSTRACT:
An analog electronic timepiece comprises a system control circuit for outputting a control signal to each operable circuit in response to a signal from an outer input switch, a chronograph storing circuit for storing the value a chronograph measuring means by a lap control signal outputted from the system control circuit, a lap time calculating circuit to which a measuring data of the chronograph measuring circuit and a former measuring data stored in the chronograph storing circuit by a former lap control signal are inputted for calculating the time difference between the above two data and outputting a correcting drive signal if the hand requires a correcting drive as a result of the above calculation and a drive judging circuit to which a lap input signal, an interruption signal, and a correcting drive signal outputted from the system control circuit are inputted for outputting a data of the drive number if the hand requires driving.
REFERENCES:
patent: 4523857 (1985-06-01), Ushikoshi
patent: 4537514 (1985-08-01), Moriya
patent: 4657405 (1987-04-01), Nakazawa
patent: 4901294 (1990-02-01), Aihara
patent: 5151885 (1992-09-01), Kasuo
Adams Bruce L.
Miska Vit W.
Seiko Instruments Inc.
Wilks Van C.
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