Electronic timepiece with checking function and its checking...

Details Electronic timepiece with checking function and its checking... Electronic timepiece with checking function and its checking...

2005-05-24

2005-05-24

Martin, David (Department: 2841)

Horology: time measuring systems or devices

Power supply details

Electrical

C368S203000, C320S135000, C340S636150

Reexamination Certificate

active

06898156

ABSTRACT:
An electrical timepiece comprises external input units for receiving an external input signal, a motor unit for driving an analog hand unit for displaying time, a battery unit capable of charging, a voltage detect circuit for measuring the voltage of the stored electricity in the battery and comparing the voltage with a reference voltage, and a stored electricity unit discharge control circuit for starting discharge from the battery when an external input signal is received by one of the external input unit, and for stopping discharge from the battery when the comparison result by the voltage detect circuit satisfies a prescribed condition.

REFERENCES:
patent: 3894278 (1975-07-01), Gerum
patent: 4017724 (1977-04-01), Finger
patent: 4758772 (1988-07-01), Lang
patent: 4950913 (1990-08-01), Kephart
patent: 5343137 (1994-08-01), Kitaoka et al.
patent: 5475654 (1995-12-01), Furumura et al.
patent: 642 812 (1984-05-01), None
patent: 87 2 01161 (1987-11-01), None
patent: 2171883 (1994-07-01), None
patent: 0886 197 (1998-12-01), None
patent: 57-24586 (1982-02-01), None
patent: 62-239083 (1987-10-01), None
patent: 1-107186 (1989-04-01), None
patent: 8-233958 (1996-09-01), None
patent: 09-326498 (1997-12-01), None
patent: 11-52035 (1999-02-01), None
patent: 11-295450 (1999-10-01), None

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