Electronic timepiece
AssigneeCitizen Watch Co., Ltd.
InventorsFukuo Sekiya, Minoru Watanabe
Life of this patent
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Abstract
An electronic timepiece equipped with a switch means to produce switching pulses in response to actuation of an external operation member, and means for detecting the time intervals between pairs of the switching pulses and producing first control signals indicative of duration of the time intervals. A counter circuit is responsive to the first control signals to provide a second control signal, in response to which a correction signal generation means produces correction signals, the number of which depends on the second control signal.
Claims8
A correction signal generation circuit for an electronic timepiece having a source of clock pulses, comprising:
- switch means coupled to an external actuation member, for producing switching pulses in response to actuation of said external actuation member;
- detection means for detecting the time intervals between pairs of said switching pulses and for producing detection signals indicative of durations of said time intervals;
- output signals generation means responsive to said detection signals for generating output signals indicative of a numeric value;
- and
- means for producing correction pulses in response to said clock pulses and said output signals, with the number of said correction pulses depending on said output signals;
- said correction pulse producing means comprising a counter circuit for counting the number of said correction pulses to produce a control signal, and gate means responsive to said control signal and said clock pulses to produce said correction pulses.
Dependencies are inferred from the claim text.