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.
A time correcting apparatus for an electronic timepiece having a digital time display including a selecting switch for selecting the digit of the display to be corrected, which digit is visually identified, and a correcting switch for correcting that digit. Time correction is achieved by the combined operation of the two switches.
An electronic timepiece having a single digital display and being suitable to operate as a standard timekeeping wristwatch or in the alternative as a chronograph. Separate divider circuits are provided for performing the timekeeping and chronograph functions, a first selector circuit selecting which function is to be displayed. A single set of switches is provided for controlling either divider circuit, a second selected circuit selecting which function is performed by said switches.
The electrooptic display of an electronic timepiece has a total of only twelve indicator elements. Hours are indicated by causing one element to produce one kind of optical output such as steady illumination. Minutes are indicated by causing an element to produce another kind of optical output such as intensity modulated illumination. The particular element selected for intensity modulation is a coarse indication of minutes (5 minute increments); the modulation itself is a fine indication of minutes (1 minute increments). Similar techniques may be employed for indicating the month and day.
A switching arrangement and method for setting or adjusting a time-measuring device comprising at least two counters connected one after the other and connected in certain cases with indicator devices, of which one counter changes the counter position thereof by count-pulses emitted by a generator circuit at successive intervals of time and of which the other counter respectively upon transition of the said one counter from one defined counter position into another defined counter position receives a signal fed from the said one counter, which brings about its onward count, and a control device for resetting the said one counter, characterized in that the counting-range of the said one counter is divided up into two partial ranges of preferably at least approximately equal size, in one of which the said one counter emits a defined first output signal and in the other of which the one counter in question emits a defined second output signal, and that the control device resets the one counter in question out of a counter position lying in the first partial range into a first reset counter position lying in this first partial range for setting the time-measuring device backward and resetting of the said one counter out of a counter position lying in the second partial range into a second reset counter position likewise lying in the first partial range for setting the time measuring device forward.
