Abstract: Provided is an electronic watch capable of, even if an indicating hand having a large moment of inertia is used, accurately determining success and failure of rotation. The electronic watch detects rotation by using a first detection mode determination circuit (12) and a second detection mode determination circuit (13). In the electronic watch, a timing counter (14) for measuring a time after an output of a normal drive pulse is followed by a detection pulse selection circuit (151) provided as changing means for changing a width or a frequency of a detection pulse in accordance with an output time of the detection pulse. The detection pulse detects the rotation and simultaneously serves as an electromagnetic brake for a rotor (10). The electromagnetic brake for the rotor (10) is controlled by changing the width or the frequency of the detection pulse in a predetermined period, thereby achieving an accurate rotation detection.

Abstract: A timepiece includes a main plate and gear train bridge with a center wheel and pinion supported therebetween by one or more bearing members integrally formed in the main plate and gear train bridge. A plurality of springs integrally formed in said plate and bridge are used for positioning internal members of the timepiece relative to each other. Additional similar springs are used for fixing the frame structure to the casing of the timepiece. A pressing plate can be connected to the main plate and includes one or more leaf springs for fixing a back cover of the timepiece away from the frame structure. One or more of the plates or bridge can be electrically conductive for delivery of current to an internal member.

Abstract: A timepiece includes a main plate and gear train bridge with a center wheel and pinion supported therebetween by one or more bearing members integrally formed in the main plate and gear train bridge. A plurality of springs integrally formed in said plate and bridge are used for positioning internal members of the timepiece relative to each other. Additional similar springs are used for fixing the frame structure to the casing of the timepiece. A pressing plate can be connected to the main plate and includes one or more leaf springs for fixing a back cover of the timepiece away from the frame structure. One or more of the plates or bridge can be electrically conductive for delivery of current to an internal member.

Abstract: An integrated circuit for an electronic timepiece includes at least one semiconductor nonvolatile memory device. Reference data can be checked across a pair of output terminals prior to being stored in at least one EPROM to check the accuracy and acceptability of the reference data for driving a motor of the timepiece. The reference data once written into the EPROM serves as control data. Both the reference data and control data are used for controlling at least one function of the timepiece. The control data also can be checked across the output terminals to determine its accuracy and acceptability for driving the motor. Testing of the reference data and control data can be performed on a faster than real time basis.

Abstract: An integrated circuit for an electronic timepiece includes at least one semiconductor nonvolatile memory device. Reference data can be checked across a pair of output terminals prior to being stored in at least one EPROM to check the accuracy and acceptability of the reference data for driving a motor of the timepiece. The reference data once written into the EPROM serves as control data. Both the reference data and control data are used for controlling at least one function of the timepiece. The control data also can be checked across the output terminals to determine its accuracy and acceptability for driving the motor. Testing of the reference data and control data can be performed on a faster than real time basis.

Abstract: A very compact package for an electronic data module, which includes battery-backed memory. A two-part metal container is used, which has two shallow concave pieces which fit together. The integrated circuit (in a low-height package, such as a flat-pack or SOIC) is mounted on a very small flexible printed circuit board, which fits inside the container. Laterally spaced from the integrated circuit, on the other end of the small flexible board, the board end is sandwiched between a battery and a piece of elastic conductive material (such as conductive plastic foam). Thus, the battery is connected between one face of the container and a power conductor on the board. The piece of elastic conductive material makes contact between a data trace on the board and the other face of the container. Another trace on the board makes contact directly to the container face on which the battery's ground terminal is connected.

Abstract: A structure for mounting an integrated circuit chip within a timepiece is provided. An insulating circuit substrate supporting a circuit pattern thereon having terminal portions formed on the substrate is mounted on a frame. An IC chip is mounted on the circuit substrate so that the terminals of the IC chip are in facing relationship with the circuit terminal portions. A circuit cover is mounted on the frame over the IC chip and circuit substrate and biases one of the IC chip or circuit terminal portions towards each other so that the chip terminals come into conductive contact with the circuit terminal portions forming a circuit between the circuit on the substrate and the IC chip.

Abstract: A circuit substrate mounting configuration for mounting an IC chip having a built in semiconductor sensor in an electronic timepiece is provided. The circuit substrate is fixed to a base plate at at least two points spaced as far as possible from the IC chip so that the substrate about the IC chip does not contact other elements of the timepiece.

Abstract: A chronograph watch comprises a first motor controlled by a quartz resonator coupled to a first simple integrated circuit. This motor drives, through gearing, the time indicating members of the watch. A second motor controlled by a second quartz resonator coupled to a second simple integrated circuit, identical to said first integrated circuit, can be operated at a higher frequency when a switch, which is operable manually by means of a pushbutton and interposed between electrical ground and a terminal of the second integrated circuit, is open. The second motor drives, through further gearing, a chronograph hand coupled to a minute counter and to an hour counter. Thus the chronograph indicates fractions of seconds without the timepiece requiring expensive circuits or having an excessive electrical power consumption.

Abstract: A module construction includes a power source, frequency source, circuit means, analog display and liquid crystal display. The analog display covers the face of the timepiece and the electronic display overlays the analog display. An analog movement is positioned between a stiff metal reinforcement and a spacer member. Circuit means are provided on a stiff substrate and a thin film substrate laid on said stiffer substrate. The spacer member allows for positioning of discrete electrical and mechanical components between the reinforcement and substrates. A circuit holder member supports the substrates and connects with the reinforcement. A portion of the analog movement extends through an aperture provided in the electrical substrate.

Abstract: A test circuit for watch IC capable of setting an operating mode with the operations of a plurality of switches has a ROM for deciding next operating mode in response to the outputs of said switching circuit including the switches and the outputs of flipflips for holding a present operating mode.A signal from a test terminal sets an initial state and provides the predetermined data instead of the outputs of flipflops to the ROM whereby an operator can set an arbitrary operating mode readily in a short time.

Abstract: An electronic timepiece having a quartz crystal oscillator for producing a time standard signal, a frequency divider, and a display device. A CMOS integrated circuit on an N-type substrate is provided for the elements. A first aluminum lead and a second aluminum lead are provided on the CMOS integrated circuit. The first aluminum lead is provided on the CMOS integrated circuit to connect the high potential side of voltage supply to the N-type substrate. The second aluminum lead is provided on the CMOS integrated circuit for supplying the voltage to a logic circuit in the CMOS integrated circuit. A resistor is provided between the second aluminum lead and high potential side of the voltage supply for preventing the latch-up of the CMOS integrated circuit.

Abstract: An electronic device having an indicator element and a plurality of other electronic parts for electrically driving the indicator element compactly assembled one another, which includes, as fundamental structure, lead conductors for electrically connecting the indicator element and the electronic parts to one another, and resin member completely embedding the lead conductors except the electrical contact portions between each electronic part and the lead conductors and having sections for receiving the electronic parts. This invention may be applied to the module for an electronic wrist watch using the LCD indicator element to thereby enable easy and compact assembly of the indicator element and the other electronic parts into the module.

Abstract: An integrated circuit for a time-piece including an oscillator, a frequency divider, an electronic circuit for effecting at least one auxiliary function depending on information delivered to the inputs thereof, a circuit for controlling a display and a circuit for setting the time. The integrated circuit is provided with a first group of terminals for enabling connection of the integrated circuit with external components such as a piezo-electric resonator, the display, and the time-setting circuit.

Abstract: An electronic timepiece comprising means to appreciably increase the number of distinctive information which can be introduced and, if necessary memorized, for a given number of terminals intended for that purpose, information needed for the adjustment of the frequency. The integrated circuit of the timepiece is provided with a first group of m terminals and it comprises an introduction circuit having inputs reserved to introduce the desired information, these inputs being connected to a second group of n terminals of the integrated circuit. The introduction circuit has also control inputs and each of the n terminals of the second group is capable to be connected, by a connection external to the integrated circuit, with one of the m terminals of the first group. The introduction circuit is arranged in such a way as to deliver to its outputs, at least periodically, one distinctive information for each of the m.sup.n possible combinations of the mentioned connections.

Abstract: An electronic timepiece comprising a quartz crystal oscillator for producing a time standard signal, a frequency divider, and a display driver. The electronic circuit comprises a digital logic circuit employing a complementary MOS integrated circuit (CMOS.multidot.IC). A diffusion resistor is formed in the N-type substrate of the CMOS transistor of the CMOS.multidot.IC by diffusing an impurity at the same time with the diffusion of the P-well for the N-channel MOS transistor of the CMOS transistor. Supply voltage of a battery is supplied to a part of the CMOS.multidot.IC through the diffusion resistor, whereby variation of the threshold voltage of the CMOST may be compensated.

Abstract: A rapid start oscillator latch circuit for avoiding long start up time while maintaining minimum operating power for a crystal oscillator in an electronic watch. The oscillator is operated at a relatively high gain immediately after power is applied and until the oscillator is running, after which the oscillator is caused to operate under the normally preferred conditions. A power up pulse sets a latch and the latch is reset by either a pulse from the prescaler or a manual input. When the latch is set, the oscillator circuit is modified for quick start-up. After the oscillator is running, it activates the prescaler, and after several cycles of clock inputs to the prescaler, an output from the prescaler or a manual input resets the latch and the oscillator is returned to its normal operating condition.

Abstract: A crystal oscillation-type electronic timepiece having an oscillator with a crystal oscillator as a time base, means for dividing the frequency of the oscillator, display driving means and time display means. The oscillator has a complementary metal oxide semiconductor logic circuit including an inverter with a gated N-channel transistor and a gated P-channel transistor. The inverter is designed such that a ratio of the width and length in a channel of the gated N-channel transistor is made less than one and that a ratio of the width and length in a channel of the gated P-channel transistor is made less than two. The capacity of an input capacitor connected to an input of the crystal oscillating element is larger than that of an output capacitor connected to an input of the crystal oscillating element. The consumed power at the oscillating part is thereby decreased.

Abstract: An integrated circuit watch which employs a RAM and PLA to execute its timekeeping functions can be significantly improved to include a multiplicity of zones without entailing greater complexity of circuitry or large amounts of chip space and may incorporate user programmability by incorporation of the present invention. The number of independent and distinct watch functions within the integrated circuit watch can be increased by coupling a flag RAM to the main PLA. The flag bits, which are associated with the counting states of each separate watch function are then accessibily stored within the flag RAM and appropriately coupled to the main PLA to execute the required timekeeping operation at the appropriate time. A processor is coupled to the flag RAM and may selectively process or manipulate each of the flag bits in the flag RAM in response to instructions or control signals, some of which may be user initiated.

Abstract: A solar battery timepiece has a structure of a module, a base plate on the module, a solar battery cell on the base plate, an insulating flexible sheet provided with a print wiring and interposed between the base plate and the solar battery cell, and a dial ring attached to the peripheral edge of the base plate whereby the solar battery timepiece may be made with a reduced thickness, small in size, simple in construction, shock resistant and reliable in operation.

Abstract: An electronic calculator watch which comprises timekeeping means composed of an oscillator, a frequency divider connected to the oscillator, a counter circuit connected to the frequency divider, and a driver circuit connected to the counter circuit for providing an output signal indicative of time information, and calculating means composed of an oscillator circuit and a calculation circuit responsive to perform calculations under control of numerical inputs furnished by external operation device provided on a watch case. The watch also comprises a display including a first display section connected to the driver circuit of the timekeeping means to display the output signal delivered therefrom, and a second display section connected to the calculating means to display the result of calculations, each of the first and second display sections having a plurality of digit electrodes and a plurality of segment electrodes arranged in a matrix configuration.

Abstract: 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 produce a signal with given time intervals. Clock data stored in the memory is read out therefrom by a timing signal corresponding to the output signal from a given stage of the frequency dividing circuit and is loaded into a shift register where it is stored temporarily. The clock data stored in the memory is read out therefrom at given time intervals by a control signal obtained in accordance with the output signal from a given stage of the frequency dividing circuit, and the read out clock data, together with the clock data read out to the shift register, is subjected to a given operation, with the result that the clock data is updated. The updated clock signal is loaded into the memory by a control circuit.

Abstract: An integrated control device for controlling a device such as a LED display or a miniature stepping motor for an electronic watch comprises at least one insulated-gate field effect transistor for controlling the supply of current to the element. The gate of the F.E.T. is connected to a control circuit including a voltage multiplier comprising a series-connected chain of rectifiers and a plurality of capacitors connected between the respective junctions between rectifiers and alternate inputs. High frequency signals of opposite phase are supplied to the inputs under control of an input control signal. Circuit means are provided for starting the action of the voltage multiplier at the beginning of an input control signal and for short-circuiting the output of the control circuit at the end of an input control signal.

Abstract: 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 control stage a stepping motor, which stepping motor is coupled with the dial train, is able to be applied with pulses of the same or alternating polarity. Each pulse is formed from a number of individual pulses, the pulse duty cycle of the individual pulses reducing toward the end of the first mentioned pulses.

Abstract: A semiconductor integrated driving circuit including a junction FET and a C-MOS FET fabricated on a common semiconductor substrate. The junction FET is switched between conductive and non-conductive states for controlling and supplying a high driving current to a high current load element.

Abstract: Disclosed is a data display circuit which comprises a shift register circuit including six cascade-connected shift registers shifting serial data to produce parallel data, a decoder circuit including three decoders receiving the parallel data from the shift register circuit and producing output data corresponding to such input data, a latch circuit coupled to the decoder circuit, a control circuit coupled to the decoder circuit and the latch circuit and supplying these decoder and latch circuits with control pulses so that output data from the decoder circuit may be held temporarily in the latch circuit, and a display device for displaying output data from the latch circuit.

Abstract: A solid state clock for an automobile or the like, which includes display means in the form of a vacuum fluorescent display. Current is supplied from the automobile battery to the display through an integrated circuit or "chip". The voltage from the battery is doubled by an inductor coil coupled between the battery and the integrated circuit. An electrical switching means in the form of a transistor is coupled between the integrated circuit and the inductor coil for supplying converted frequency thereto. A second switching transistor and a Zener diode is provided to regulate the duty cycle of the first transistor to maintain the voltage to the display substantially constant.

Abstract: An electronic timepiece comprises a detection circuit provided with a resistance element which discriminates rotation and non-rotation of a stepping motor by variation of an oscillating circuit, a dividing circuit, a pulse composing circuit, a stepping motor driving circuit, a two phase driving system stepping motor and an inductance, wherein said resistance element is directly connected across a coil output of the stepping motor within an integrated circuit.

Abstract: An analogue electronic alarm timepiece has a dial on which time is displayed by the usual hour, minute and second hands. The time for which the alarm is set is displayed digitally in an aperture provided in the dial. The digital display of the alarm time is effected by means of a rotatable hour wheel having hour indicia thereon and a rotatable minute wheel having minute indicia. The hour wheel and minute wheel are selectively rotatable by manual operation of an external stem. The hour wheel and minute wheel are magnetically and electronically coupled with alarm time memory means. Time counting means is electronically connected with a dividing circuit which divides a standard signal produced by an oscillator and to which a motor for driving the hands is also connected. The alarm is activated by a coincidence circuit when the time of the time counting means coincides with the time for which the alarm time memory means is set. Means is provided for synchronizing the time counting circuit with the hands.