1977-04-13
1978-11-21
Schaefer, Robert K.
58 50R, G04B 2700
Patent
active
041259955
ABSTRACT:
In an electronic timepiece including a battery, a time count circuit for counting reference clock signals from an oscillator and a display unit for displaying the counted values of the time count circuit, there is provided a switching mechanism for controlling a function other than a time count function. A battery set signal which is generated upon incorporation of a battery into the body of the timepiece is temporarily held in a holding circuit.
The timepiece includes a switching circuit which, when the switching mechanism is operated, permits a switching operation signal for controlling a function other than the time count function to be switched by the output of a signal holding circuit to a switching operation signal for controlling a time setting function.
The timepiece further includes a counter in which the contents are counted by the latter switching operation signal. The output of the counter is delivered as an instruction for time counting. After the time count circuit completes its time setting operation, the signal holding circuit releases its hold state to permit the switching mechanism to return to the state of the normal time function.
REFERENCES:
patent: 3855780 (1974-12-01), Kashio
patent: 3935700 (1976-02-01), Van Haaften
patent: 4016508 (1977-04-01), Kobori
patent: 4022017 (1977-05-01), Aoki
patent: 4024676 (1977-05-01), Yamamura
patent: 4024678 (1977-05-01), Portmann
patent: 4044544 (1977-08-01), Yagi
Casio Computer Co. Ltd.
Feeney William L.
Schaefer Robert K.
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