Citizen Watch Company, Ltd.

Kazutoshi Takahashi

Ryoji Iwakura

Tatsuo Nitta

An electronic timepiece in which an operating state of a timepiece circuit is controlled by a control circuit composed of a counter responsive to clock pulses from the timepiece circuit, a digital/analog converter for converting a digital output signal from the counter to an analog output signal, a potentiometer adapted to generate an analog input signal, and a comparator for comparing the analog output signal and the analog input signal to generate an output signal which is applied to the counter to control the same by which a control signal is generated to control the operating state of the timepiece.

Electronic timepiece with gain/loss adjustment

An electronic timepiece equipped with a differentiation carry inhibit circuit arranged to allow a carry operation due to a carry signal produced by a time counter in response to a time unit signal when the timepiece remains in a time correction mode and inhibit a carry operation due to a carry signal arising from a correction signal produced by actuation of a correction switch.

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Tokorozawa, Japan

Kazutoshi Takahashi