Time correction device for digital watches
AssigneeKabushiki Kaisha Suwa Seikosha
InventorKinji Fujita
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Abstract
A time correction device for electronic watches having multi-stage divider circuitry for dividing the high frequency output signals of an oscillator into low frequency timing signals including a gate at the input of each divider stage to be corrected for selectively applying to said divider stage the output signal of the prior stage or the inverse of said prior stage output signal. A switch is provided for manually actuating the gate to pass one of the prior stage output signal and the inverse thereof.
Claims12
A time correction device for electronic watches including time standard oscillator means for producing a high frequency signal, and multi-stage divider circuit means coupled to said oscillator means for dividing said high frequency signal into low frequency timing signals, each of said divider means stages producing an output signal for application to the input of the next stage, comprising a gate means connected to the input of each divider means stage to be corrected for selectively applying to said input either the output signal of the prior divider means stage or the inverse thereof;
- and manually operated switch means operatively coupled to said gate means for the selection of which of said prior divider means stage output signal or the inverse thereof is passed by said gate means to the input of the divider means stage to be corrected.
A time correction device for electronic watches including a time standard oscillator means for producing a high frequency signal, and multi-stage divider circuit means coupled to said oscillator means for dividing said high frequency signal into low frequency timing signals, each of said divider mean stages producing an output signal for application to the input of the next stage, the improvement comprising switching means connected to the input of each divider means stage to be corrected to selectively adding an additional pulse to the output signal of the divider means stage next previous to each divider means stage to be corrected for application to the input of the connecting divider stage to be corrected in response to each actuation of said switching means whereby the output signal of each next-previous divider stage is not rendered-discontinuous by the adding of pulses thereto.
Dependencies are inferred from the claim text.