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| Number | Title | Issue Date |
| 8149651 | Resonator mounted in a case incorporating a watch module The invention concerns an electronic watch comprising an electric motor (5) for driving analogue display means (6), and a time base (1, 2) comprising an oscillator circuit (2) and a resonator (1), both mounted in the same case (... | 04/03/2012 |
| 7583565 | Electronic timepiece To be able to promote oscillation start characteristic while having a simple constitution and maintaining low power consumption. In starting to oscillate an oscillation circuit, a capacitor for protecting from leakage is shortcircuited by bringing a switch of an osc... | 09/01/2009 |
| 7199664 | Integrated switchless programmable attenuator and low noise amplifier An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programable attenuation and a programable gain low noise amplifier. Frequency conversion circu... | 04/03/2007 |
| 7189077 | Lithographic type microelectronic spring structures with improved contours Improved lithographic type microelectronic spring structures and methods are disclosed, for providing improved tip height over a substrate, an improved elastic range, increased strength and reliability, and increased spring rates. The improved structures are suitabl... | 03/13/2007 |
| 7116263 | Remote control transmitter A remote control signal transmitter. A movable contact section includes a plurality of movable contacts and has elasticity. A wiring substrate has a movable contact section thereon. A crystal oscillator is mounted on the wiring substrate. A control section transmits... | 10/03/2006 |
| 7046584 | Compensated ensemble crystal oscillator for use in a well borehole system A compensated ensemble crystal oscillator clock system for use in a well borehohe system. The clock system includes preferably four quad compensated clocks, a compensated temperature sensor, and software for processing and correcting system response. Physical fabric... | 05/16/2006 |
| 6696899 | Differential oscillator circuit including an electro-mechanical resonator There is disclosed a differential oscillator circuit including first (10) and second (20) branches each including the series arrangement, between high (VDD) and low (VSS) supply potentials, of a first transistor (4, 5), a first current source (2, 3) and r... | 02/24/2004 |
| 6147564 | Oscillation circuit having electrostatic protective circuit An oscillation circuit including an electrostatic protective circuit connected between a signal path and this constant voltage Vreg. It comprises a first electrostatic protective circuit portion that causes any electrostatic voltage of a first ... | 11/14/2000 |
| 5929715 | Oscillation circuit having electrostatic protective circuit An oscillation circuit is driven at reduced power by a constant voltage Vreg having an absolute value that is lower than that of a power voltage Vss of a main power source. An electrostatic protective circuit provided in this oscilla... | 07/27/1999 |
| 5325074 | Oscillator with supply voltage changeover according to activated and disabled states of a microcomputer A microcomputer in which an oscillating circuit provided therein is activated both when the microcomputer is in an activated state and when it is in a disabled state is provided with a changeover circuit for changing over a supply voltage of the oscillati... | 06/28/1994 |
| 5267379 | Method of fabricating surface mountable clock oscillator module A crystal controlled clock oscillator resin encapsulated in a surface mount device (SMD) package incorporates on a lead frame a crystal oscillator, an integrated circuit, a power supply filter capacitor and, optionally, a feedback resistor. In the fabrica... | 12/07/1993 |
| 5218694 | Dual selection system for reference frequency for use in a clock A dual selection system for a reference frequency for use in a clock comprising a microcomputer for controlling the whole system and outputting a switching signal and frequency-demultiplying signals. A system oscillator produces an oscillation signal of 4... | 06/08/1993 |
| 5172349 | Electronic timepiece with analog display The timepiece of this invention comprises an electromagnetic motor (100) the stator (2) of which is flat and at least partially covered by a reinforcement plate (68) of non-magnetic material or, if need be, of very low magnetic permeability which has been... | 12/15/1992 |
| 4680514 | Motor The present invention relates to a motor for driving a clockwork. A rotatably supported rotor 1 has diametrically opposite permanent-magnet poles. A multi-phase coil arrangement is furthermore present to produce a magnetic field which deflects the rotor 1... | 07/14/1987 |
| 4644445 | Resin mounting structure for an integrated circuit This invention describes an improved resin mounting structure for use with an integrated circuit. An integrated circuit chip is affixed to a circuit substrate which has a hole. Circuit patterns connect to the contact pads of the integrated circuit chip an... | 02/17/1987 |
| 4641109 | CMOS crystal controlled oscillator A CMOS crystal controlled oscillator includes a CMOS inverter composed of series connected MOS FETs and a crystal connected between signal input an output nodes of the inverter. First and second capacitors are respectively connected between the signal inp... | 02/03/1987 |
| 4618837 | Low-power consumption reference pulse generator A reference pulse generator comprises a quartz crystal oscillator, a frequency divider connected to the oscillator for frequency dividing the oscillator output, and a constant current generator connected in series both with the oscillator and the frequenc... | 10/21/1986 |
| 4600898 | One-pin crystal oscillator A one-pin crystal oscillator 20 is designed to be used as a clock generator for digital integrated circuits. Unlike the prior art, this oscillator requires only one package pin to connect the crystal as opposed to the usual two pin requirement and, except... | 07/15/1986 |
| 4459565 | Low current electronic oscillator system A low current electronic oscillator system includes an oscillator tuning element, such as a piezoelectric crystal, operable at a predetermined frequency and an oscillator control circuit for cooperating with the tuning element to provide an oscillating el... | 07/10/1984 |
| 4427302 | Timekeeping signal source for an electronic timepiece A timekeeping signal source for an electronic timepiece produces a highly accurate timekeeping signal which is stable in frequency with respect to both temperature variations and long-term drift. The timekeeping signal is produced by phase lock control us... | 01/24/1984 |
| 4405906 | Low power consumption C-MOS oscillator A C-MOS oscillator circuit having input and output terminals adapted to be connected to a resonator and two active MOS transistors of complementary types connected in series between the supply terminals of the circuit, which supply terminals are connected... | 09/20/1983 |
| 4387349 | Low power CMOS crystal oscillator A two transistor CMOS inverter has the two transistor gates coupled together by a coupling capacitor. D-C gate bias is supplied to each transistor through high value resistors. The P-channel transistor is biased one threshold below VDD and the ... | 06/07/1983 |
| 4387350 | Watch circuit with oscillator gain control A watch circuit arrangement for conserving battery power includes a feedback connection between the crystal oscillator of the watch circuit and the display voltage generator which is responsive to the crystal oscillator output to develop sufficient output... | 06/07/1983 |
| 4360789 | Very low current pierce oscillator A very low current Pierce oscillator has two pairs of complementary field-effect transistors (FET's) and a two-terminal quartz crystal. The gates of the first complementary FET pair are coupled through individual capacitors to one terminal of the quartz c... | 11/23/1982 |
| 4358839 | Absolute digital clock system An absolute digital clock system which is capable of counting absolute time despite the disruptive effects of a nuclear event, or other disturbance, on the electronic circuitry of the system. The clock system of the invention includes a master quartz crys... | 11/09/1982 |
| 4346350 | FET Quartz oscillators A quartz crystal oscillator for a timepiece including a complementary field effect transistor (FET) pair, wherein one field effect transistor is constant current-biased and the other field effect transistor is self-biased, with high impedance negative fee... | 08/24/1982 |
| 4325036 | Temperature compensating circuit Temperature compensating circuit for an electronic timepiece having two piezo electric resonators having different frequency-temperature characteristics. Two piezo electric resonators are a major resonator having smaller frequency variation rate in temper... | 04/13/1982 |
| 4321562 | Crystal oscillator circuit capable of changing the number of inverter stages coupled in series A single-stage inverter forming a closed loop together with a crystal resonator fails to provide sufficient gain and hence, power consumption becomes high during stable oscillation. If inverters are coupled together in a three-stage cascade-connection, on... | 03/23/1982 |
| 4307354 | Crystal oscillator circuit having rapid starting characteristics and a low power consumption An improved oscillator circuit utilizes an inverter which includes a pair of series connected MOS-FETs of differing conductivity types. A switching circuit is operable to supply the gate bias voltages from one of two separate sources, one of which is used... | 12/22/1981 |
| 4242611 | Methods and apparatus for providing ultra-stable frequency standards and clocks Improved clocks and frequency standards are provided through the use of single crystals having a mass of the order of kilograms maintained at temperatures of the orders of few degrees Kelvin which are caused to vibrate freely at low modes of resonant vibr... | 12/30/1980 |
| 4219754 | Temperature compensation by positioning of plural piezoelectric vibrators in an electronic wristwatch In an electronic wristwatch having a watch body an a plurality of electronic vibrators having frequency-position characteristics, the frequency-temperature characteristic of the standard signal generated thereby is improved by positioning the vibrators in... | 08/26/1980 |
| 4218661 | C-MOS crystal oscillator including circuit for temporarily increasing closed loop gain An oscillator circuit wherein the impedance at the output terminal can be selectively decreased for a short period of time to thereby increase the closed loop gain is provided. The oscillator circuit includes a quartz crystal vibrator and a C-MOS inverter... | 08/19/1980 |
| 4199726 | Digitally tunable integrated circuit pulse generator and tuning system An integrated circuit pulse generator which may be externally digitally conditioned to provide an output signal at a frequency falling within a predetermined range of signal frequencies corresponding to a specified frequency tolerance includes a fixed fre... | 04/22/1980 |
| 4177631 | Small-sized quartz crystal wristwatch A small-sized electronic wristwatch assembly, wherein a support plate is constructed and arranged to position the operative elements of the wristwatch to reduce the size thereof is provided. The electrical components of the wristwatch include a battery, a... | 12/11/1979 |
| 4157647 | Hand reversing system for an electronic timepiece In an analogue electronic timepiece the hands are moved by a stepping motor driven by a time standard signal supplied from a generating circuit comprising a quartz oscillator. In order to amend the time in a reverse direction, for example to correct for a... | 06/12/1979 |
| 4157007 | Asymmetric digital watch module An electronic watch module includes a circuit board having all the electronic watch components including a plurality of LED's and a CMOS integrated circuit device mounted on one side thereof defined as the face of the board. The board is of a generally fl... | 06/05/1979 |
| 4148184 | Electronic timepiece utilizing main oscillator circuit and secondary oscillator circuit An electronic timepiece having a main oscillator circuit including a first quartz crystal vibrator as a time standard and also having a secondary oscillator circuit including a further quartz crystal vibrator as a time standard for reducing the affect of ... | 04/10/1979 |
| 4148183 | Supporting structure for quartz oscillator A supporting structure for a quartz oscillator having terminal pins extending from one end portion of the oscillator in an electronic timepiece having a circuit substrate supporting the one end portion of the oscillator by means of the terminal pins conne... | 04/10/1979 |
| 4148181 | System for controlling the striking mechanism of a timepiece A first contact arm on the minute shaft of a clockwork switches, once every 0 minutes, the mode of energization of an electronic gating circuit with two sections in the inputs of an inverting anticoincidence (NOXOR) gate working into a setting input of a f... | 04/10/1979 |
| 4145872 | Electronic watch An electronic battery-powered watch including an oscillator followed by a chain of frequency divider stages, said chain being composed of two parts with an interface circuit between said two parts, said interface circuit multiplying by a predetermined amo... | 03/27/1979 |
