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Match Document Document Title
6278567 Apparatus and method for recording a video signal on a recording medium  
A video signal recording apparatus for recording a video signal on a recording medium comprises a memory for temporarily memorizing the video signal, a synchronizing separating circuit for...
6025690 Method and device for controlling a stepping motor  
The method includes applying to the coil (3) of the motor (2) driving pulses having alternately a first and a second polarity, supplying the coil (3) with a determined quantity of electric energy...
4651147 Device for setting a numeric display  
A device for setting a numeric display (11) comprises a continuously turnable potentiometer (12) by which the setting area can be repeatedly passed through by turning in the same direction. The...
4549154 Magnetically retentive programmable switching control device  
A switching control device having a plurality of displaceable fingers programmable for controlling a sequence of switching operations in a time-controlled system has a magnetic element for exerting...
4518906 Driving device of stepping motor  
A driving device of a stepping motor comprises a driver/detector circuit for detecting whether a rotor has rotated or not by comparing a voltage induced across a driving coil by the free...
4433401 Electronic timepiece having a stepping motor and driving circuit compensated for power source variations  
An electronic timepiece comprising a power source, an electronic circuit, a stepping motor, and a detecting device for detecting a rotor movement after the stepping motor is driven. The electronic...
4430007 Method of reducing the power consumption of the stepping motor of an electronic timepiece and an electronic timepiece employing the method  
The present invention comprises measuring, upon application of a drive pulse to the actuating coil 5 of the stepping motor, the variation in the magnetic induction flux in the stator of the motor,...
4400093 Method for inspecting the running of a timepiece and timepiece adapted for such method  
In order to determine the adjustment precision ΔT of a timepiece provided with an oscillator (1) and an adjustable frequency divider chain (3-18; 18-20) on which an adjustment unit (15) acts,...
4398832 Multifunction timepiece  
The timepiece comprises a first motor (8) driving the seconds hand (s) independently from the other hands indicating the minutes and the hours which are driven by a second motor (4). A logic...
4312059 Electronic timepiece  
In an electronic timepiece, a motor is driven by a pulse having a shorter pulse width than the conventional driving pulse and afterwards, a detection pulse is applied to the motor coil so as to...
4300223 System for making-up steps lost by the motor of a time-piece  
The present invention concerns a time-piece comprising a system for detecting the non-rotation of a stepping motor and for making-up lost steps. The detection system comprises a device for...
4287597 Satellite controlled clock  
A satellite disseminated time and date code is received and converted into local time signal and displayed. The ground stations scan a frequency spectrum for signals from geosynchronous satellites....
4281405 Reduction of energy consumption of electronic timepiece  
Reduces the consumption of an electronic time piece equipped with a motor 4 driving a display unit 5. A quartz oscillator 1 feeds a supply circuit 3 through a frequency divider 2. The supply...
4272837 Electronic timepiece with rotation detector  
An electronic timepiece including a dividing circuit for developing different output pulse signals having different respective pulse repetition rates, a stepping motor and a drive circuit...
4270198 Electronic timepiece  
An electronic timepiece having a frequency standard, a frequency converter, a control circuit responsive to a low frequency time unit signal to provide first and second output signals, and a driver...
4267587 Electronic timepiece circuit  
An electronic timepiece circuit is provided with an oscillator for producing a reference signal and a frequency dividing circuit which frequency-divides the reference signal from the oscillator to...
4254491 Pulse control for an electric clock  
Electric clock with an oscillator, particularly a quartz oscillator, a frequency divider connected to the quartz oscillator and a control stage connected following the frequency divider, via which...
4253175 Time data processing circuit for electronic timepiece  
A time data processing circuit for an electronic timepiece comprises a common line; a signal generator for generating time data signal and first, second, third and fourth control signals; first and...
4244043 Frequency division system  
A system for performing frequency division of a high frequency signal by intermittent operation of a frequency dividing counter circuit and by a phase lock loop circuit, in which phase lock is...
4241435 Electronic timepiece oscillator circuit  
An electronic timepiece having a high frequency oscillator with a high level of frequency stability and an electronically controlled low frequency oscillator. The phase of a high frequency signal...
4241434 Stepping motor mechanism for an electronic watch  
An electronic timepiece includes a stepping motor having a coil and a rotor. Circuitry is provided for generating and applying alternating pulses to the motor coil to effect forward stepwise...
4241433 Electronic watch  
In an electronic watch a non-operation detecting circuit detects the non-operative condition of the stepping motor of the watch and produces a non-operation signal each time the stepping motor...
4236238 Electronic digital timepiece having a stopwatch function and a timer function  
An electronic digital timepiece having standard timekeeping, stopwatch, and timer functions, and a weekdays display section composed of a plurality of display segments selectively activated to...
4211065 Automatic system for setting digital watches  
A system for automatically time setting and message setting or programming of a cased digital watch or a watch module and including both an external setting unit and a serial interface control...
4209975 Time adjusting means for electronic timepiece  
Time adjusting means for electronic timepiece which detects change in the generation condition of pulses generated in response to a manual operation speed and generates a predetermined number of...
4201041 Digital electronic timepiece having a time correcting means  
A digital electronic timepiece comprises oscillator means for generating reference clock-pulse signals, a plurality of counter means of successive stages for successively counting the reference...
4201038 Alarm electronic watch  
An electronic alarm watch including an oscillator for developing a repetitive time standard signal, a dividing circuit for dividing the time standard signal to develop repetitive output signals,...
4192134 Electronic timepiece correction device  
An electronic timepiece equipped with an oscillator for producing a time base, a freuqency divider and time display means drive in response to output signals supplied by the frequency divider,...
4177454 Digital display system  
A digital display system with a control unit and a plurality of display units each adapted to be driven by a signal from the control unit. The control unit includes an A.C. power supply for...
4162608 Electronic timepiece frequency regulating circuit  
An electronic timepiece including a phase circuit for advancing and/or delaying the phase of the frequency signals to thereby regulate the frequency thereof is provided. The electronic timepiece...
4159622 Electronic timepiece having a main oscillator circuitry and secondary oscillator circuitry  
An electronic timepiece having a main oscillator circuit and also having a secondary oscillator circuit for reducing the effect therefore of temperature on the accuracy of the timepiece is...
4152887 Digital electronic alarm timepiece  
A digital alarm timepiece comprising an oscillator circuit for generating a standard time signal, a frequency dividing circuit, time counting circuits for counting output signals of the dividing...
4134254 Electronic timepiece device  
An electronic timepiece device comprising a plurality of coupled counter circuits designed to carry out a successive frequency division of signals issued from a frequency oscillator and supply...
4132059 Stacked logic design for I.sup.2 L watch  
An electronic timekeeping system is implemented in bipolar integrated circuit technology for displaying time by way of a digital display. The bipolar circuitry is implemented utilizing integrated...
4114363 Electronic timepiece  
An electronic timepiece having circuitry for automatically adjusting the time rate by comparing same to a randomly selected reference, is provided. A timing rate circuit includes an oscillator for...
4106280 Method and apparatus for synchronizing a mechanical oscillating system to the accuracy of a quartz standard  
An arrangement for synchronizing a mechanical oscillating system to the accuracy of a quartz standard, in particular the timing of a clock. Timing pulses are derived from a quartz oscillation, and...
4106278 Electronic timepiece utilizing semiconductor-insulating substrate integrated circuitry  
An electronic timepiece wherein the timekeeping circuitry utilizes semiconductor-insulating substrate integrated circuitry for effecting high frequency operation is provided. The timepiece includes...
4104858 Bipolar logic having graded power  
An electronic timekeeping system is implemented in bipolar integrated circuit technology for displaying time by way of a digital display. The bipolar circuitry is implemented utilizing integrated...
4094136 Electronic timepiece inspection circuit  
An inspection circuit for facilitating the inspection of the components of an electronic timepiece at the time that same is manufactured is provided. The inspection circuit is provided in an...
4092819 Electronic timepiece circuit  
An electronic timepiece circuit wherein time data is shifted through a closed loop formed of a memory circuit, correction circuit and adder to count time upon receipt of a timing pulse, the memory...
4091609 Digital electronic timepiece  
This invention provides a digital electronic timepiece for displaying the minute and seconds displays by the common display portion, particularly, minute and seconds displays are alternately...
4081953 Hybrid horological display using space modulation  
A solid state watch with electrooptic display employs digital indication of hours and five minute radial markers for indication of minutes. A first selected marker is actuated during five minute...
4074515 Electronic timepiece with battery life display  
In a digital electronic timepiece, at least one of the digital displays changes color to indicate that the battery is nearing exhaustion. The display is made up of two sets of display elements, for...
4065915 Binary counting system  
A binary counting system applicable for a variety of applications, but particularly suitable for use in a display actuator for an electronic clock, includes circuit means for counting through a...
4064689 Electronic timepiece with electro-optical display  
A disk-shaped substrate supports on its front side a liquid-crystal cell bracketed by an upper and a lower glass plate and on its rear side an electric battery along with circuit elements for...
4058971 Digital wristwatch and stopwatch  
A resettable interval timer in combination with, but functioning independently from a digital watch which provides horological information. The watch operates in two modes; the first mode...
4022017 Full electronic car clock with digital display and method of time setting therefor  
A fully electronic car clock with digital display is provided in which the counter circuit of the car clock is connected to a car battery through an engine key switch to be driven therefrom, and...
3998044 Electronic timepiece  
An electronic timepiece whose minimum dislay changing time interval is relatively long and is on the order of five seconds to two minutes such, as for example, an hour minute display liquid crystal...
3950935 Chronograph wristwatch  
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...
3913312 Solid state electronic timepiece  
An electronic timepiece having a liquid crystal display for displaying a time standard signal which is supplied thereto is provided. A light source for lighting the liquid crystal display is...
Matches 1 - 50 out of 67 1 2 >