Matches 51 - 88 out of 88 < 1 2
Match Document Document Title
4055945 Frequency adjustment means for an electronic timepiece  
An electronic horological instrument which includes a piezoelectric crystal oscillator and a counter such as a series of count-down circuits connected in tandem. The "effective frequency of the...
RE29423 Time correction device for digital watches  
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...
4043109 Electronic timepiece  
An electronic wristwatch having a quartz crystal vibrator serving as a time standard, a display, and an electronic divider circuit for dividing the high frequency signal supplied by the quartz...
4032864 Electronic circuit having a misfet as an amplifying element  
In an electronic circuit such as MIS oscillation or amplifier circuit in which a MISFET or MISFET's is used as an amplifying element and a bias resistor is provided between input and output sides,...
4024416 Method for controlling frequency of electrical oscillations and frequency standard for electronic timepiece  
A frequency standard for an electronic timepiece comprising a low frequency oscillator and a high frequency oscillator of which the frequency is an integral multiple of a predetermined frequency of...
4020626 Electronic timepiece  
An electronic timepiece comprises a quartz oscillator, a dividing circuit, a preset circuit connected to receive and divide the output pulses of the oscillator and a control circuit. The dividing...
4009445 Divider for an electronic timepiece  
A divider for an electronic timepiece comprises a multistage divider circuit having a plurality of 1/2 dividing stages connected in cascade. Logic circuitry connected to the first and last stages...
4004407 Digital display electronic timepiece  
A digital display electronic timepiece having circuitry for adjusting the division ratio of the divider circuit and a digital display displaying the amount that division ratio is adjusted. The...
4001553 Counter arrangement and associated test circuit for an electronic timing device  
A unique one chip counter arrangement and high-speed test circuit for an electronic timing device, such as a digital watch or clock. The counter arrangement is comprised of a plurality of separate...
3983411 Frequency divider  
A binary frequency-divider stage for an electronic wristwatch comprises a set of insulated-gate field-effect transistors (IGFETs) of one and the same conductivity type, one (T 1 ) of these IGFETs...
3978649 Quartz crystal electronic timepiece  
An electronic timepiece having a quartz crystal oscillator circuit adapted to be tuned to a reference frequency or a reference frequency minus mHz, where m is an integer and a divider circuit...
3975897 Electronic display digital wristwatch  
An electronic digital display wristwatch wherein correction of the time displayed is facilitated by an improved manually operated correction assembly. The electronic wristwatch includes a divider...
3973110 Circulating shift register time-keeping circuit  
The circulating shift register time-keeping circuit of the present invention comprises five circulating shift registers and controller and time base circuits to provide real-time, stopwatch, date...
3967442 Electric watch having an electromechanical movement including a correction mechanism for small errors  
An electric watch comprising a precise resonator, connected to an oscillator to which a frequency divider is connected. A control device is connected to the watch movement and to the frequency...
3945194 Electronic quartz clock with integrated circuits  
This relates to a quartz clock having a frequency divider IC with an adjustable and programmable dividing factor. The adjustable dividing factor is reached by suppression of the pulses to be...
3939641 Electronic circuit for individually correcting each digit of time displayed  
A correction circuit for an electronic timepiece is provided wherein a divider stage can be corrected without effecting correction of any other digit of the electronic timepiece to be corrected....
3906256 Drive pulse generator for use in electronic analog display clock apparatus  
Disclosed is a circuit for generating in a pulse motor drive coil an initial pulse motor drive pulse in a unit length of time during which a second hand is driven by one step, after resetting for...
3899691 Driving circuits for electronic watches  
A driving circuit for electronic watches wherein the high frequency time standard signal produced by the oscillator is divided into low frequency timing signals for providing time indication by...
3895486 Timekeeper  
A timekeeper comprises a quartz crystal resonator having a stable frequency but with a relatively large tolerance, and a frequency divider with an adjustable divison ratio. Said divider has...
3876869 Timing or counting system  
A timing or counting system of the purely electronic type which may be used with 50 or 60 Hz-voltages. As a timer, it is regulated by the cycles of the line. It can also time from 10 milliseconds...
3867614 Programmable divider for combined counter and timer  
In a digital timer there is provided a programmable divider for converting a clocking signal into a selected one of several finite driving signals for a binary counter which counts pulses of the...
3852951 ELECTRONIC CORRECTION  
An electronic time-piece is advanced by electronic pulses which are generd by a fixed frequency signal source. In order to correct the indication of the time-piece, a circuit is provided for adding...
3842589 ELECTRONIC TIMEPIECES  
An electronic timepiece such as a wrist watch of the type employing all solid state components including an electronic or a liquid crystal output display for indicating time, utilizes a high...
3834152 TIME CORRECTION DEVICE FOR ELECTRONIC TIMEPIECES  
In an electronic timepiece having a plurality of display elements, a primary manually operable switch member is provided for selecting at least one of the display elements for independent setting...
3789599 CORRECTION OF ERRORS OCCURRING IN ELECTRONIC TIMEPIECES  
The indicator gear train of a timepiece is driven in dependence upon periodic signals derived from a time base. The gear train includes a rotatable element which can periodically separate the...
3777471 PRESETTABLE FREQUENCY DIVIDER FOR ELECTRONIC TIMEPIECE  
An electronic timepiece in which the output of a stable, high-frequency standard such as a crystal oscillator, is fed to a presettable frequency-divider to produce periodic low-frequency output...
3733803 DEVICE FOR CORRECTING TIME DISPLAYED ON ELECTRONIC TIMEPIECE  
A device for correcting the time displayed on an electronic timepiece having a standard oscillator, a frequency divider bank, a time display unit, a reversible driver and an external actuating...
3693343 WRIST WATCH WITH A PIEZOELECTRIC CRYSTAL AS TIME-KEEPING OSCILLATOR  
A wrist watch using a piezoelectric crystal as the time-keeping oscillator. The time-keeping oscillator has its output fed to a number of frequency divider stages so as to reduce the ultimate...
3664117 NON-TIME INDICATING NUMBER CORRECTION CIRCUIT  
When power is applied to a digital clock, the counters therein can assume forbidden states and non-time indicating numbers are generated. This problem is eliminated by a gate circuit responsive to...
3576099 SOLID STATE TIMEPIECE HAVING ELECTRO-OPTICAL TIME DISPLAY  
There is disclosed herein an electronic solid-state time piece having an electro-optical display such as an integrated semiconductor light emitting diode structure. The display is provided by four...
3541779 ELECTRONIC TIMEPIECE  
3540207 ELECTRONIC WATCH COUNTING CIRCUIT  
3485033 ELECTRONIC TIMEPIECE HAVING LIGHT BEAM ADJUSTMENT MEANS  
3261158 Vibrator driven timepiece  
3166888 Means for adjusting a time-measuring system by means of a time-standard  
2976470 Horal instrument of high precision  
3553957 Title is not available  
3555810 Title is not available  
Matches 51 - 88 out of 88 < 1 2