| Patents for G04F 5 - Apparatus for producing preselected time intervals for use as timing standards (1,270) |
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| 09/21/1982 | US4350918 Contour vibration mode piezoelectric resonator |
| 09/14/1982 | US4349798 Compact microwave resonant cavity for use in atomic frequency standards |
| 09/14/1982 | US4349763 Tuning fork type quartz resonator |
| 08/31/1982 | US4347403 Electrical waveform synthesizer |
| 08/24/1982 | US4346350 FET Quartz oscillators |
| 08/17/1982 | US4345221 Temperature compensated signal generator including two crystal oscillators |
| 07/27/1982 | CA1128615A1 Timer |
| 07/20/1982 | US4340835 Piezoelectrically driven tuning fork with integral damper member |
| 06/29/1982 | US4337529 Pace timing device |
| 06/01/1982 | US4333172 Metronome cartridge |
| 05/04/1982 | US4328571 Rapid start oscillator latch |
| 04/06/1982 | US4323860 Laser excited molecular beam time and frequency standard |
| 04/06/1982 | US4323767 Repeatedly operable timer |
| 03/30/1982 | US4322694 Crystal oscillator implemented with CMOS technology |
| 03/30/1982 | US4321853 Automatic ear training apparatus |
| 03/23/1982 | US4321698 Temperature compensated quartz wristwatch with memory stored predetermined temperature compensating data |
| 02/10/1982 | EP0045502A2 Metronome with optical and or acoustical indication |
| 02/09/1982 | US4315224 Laser stimulated Raman molecular beam time and frequency standard |
| 02/02/1982 | US4314209 Q-Enhanced resonance-stabilized maser |
| 01/05/1982 | US4309665 Complementary amplifier circuit |
| 01/05/1982 | US4309599 Pacer device |
| 12/15/1981 | US4306170 AT-Cut quartz resonator, with w/t=2.0 to 2.8, l/t<25 |
| 12/02/1981 | EP0041009A1 Electronic metronome |
| 10/27/1981 | US4297656 Plural frequency oscillator employing multiple fiber-optic delay line |
| 10/27/1981 | US4297610 Small piezoelectric tuning fork |
| 10/20/1981 | US4296490 Crystal oscillation-type electronic timepiece |
| 10/13/1981 | US4293986 Vacuum, alloying |
| 09/08/1981 | US4288284 Method of producing housing element for quartz crystal oscillator |
| 08/18/1981 | US4285041 Digital pacing timer |
| 07/22/1981 | EP0032359A1 Oscillator with digital temperature compensation |
| 07/22/1981 | EP0032358A2 Oscillator with digital temperature compensation |
| 07/21/1981 | US4280175 Alternating to direct voltage converter |
| 07/14/1981 | CA1104840A1 Adjusting device for an electronic digital display |
| 06/23/1981 | US4275462 Electronic timepiece |
| 06/23/1981 | US4275405 Semiconductor timing device with radioactive material at the floating gate electrode of an insulated-gate field-effect transistor |
| 05/12/1981 | US4267479 Mounting clips for thickness shear piezoelectric oscillator |
| 05/05/1981 | US4266156 Subminiature piezoelectric quartz vibrator |
| 04/28/1981 | US4264967 Unit time producing system |
| 03/10/1981 | US4255723 Amplitude control inverter circuit for electronic device |
| 02/24/1981 | US4253036 Subminiature tuning fork quartz crystal vibrator with nicrome and palladium electrode layers |
| 02/24/1981 | US4252839 Vapor deposition metal electrodes |
| 01/13/1981 | US4245173 Beveled, coupled mode piezo-electric resonator |
| 12/30/1980 | US4242611 Methods and apparatus for providing ultra-stable frequency standards and clocks |
| 12/10/1980 | EP0019632A1 Quartz crystal resonator |
| 12/02/1980 | US4237549 Metronome |
| 11/26/1980 | EP0019591A1 Quartz oscillator with temperature compensation |
| 11/18/1980 | US4234811 Supporting structure for a thickness-shear type crystal oscillator for watches |
| 10/15/1980 | EP0017103A1 Coupled mode piezo-electric resonator |
| 09/23/1980 | US4223524 Quartz oscillation circuit for electronic timepieces |
| 09/23/1980 | CA1086053A1 Metronome for designating visually the note of music to be played |
| 09/09/1980 | US4222010 Control device for rapidly setting an electronic digital display |
| 08/26/1980 | US4219756 Mounting structure of a quartz crystal unit |
| 08/26/1980 | US4219754 Temperature compensation by positioning of plural piezoelectric vibrators in an electronic wristwatch |
| 08/26/1980 | US4218874 Electronic metronome |
| 08/19/1980 | US4218661 C-MOS crystal oscillator including circuit for temporarily increasing closed loop gain |
| 08/05/1980 | US4216402 Sealed piezoelectric resonator with integral mounting frame |
| 07/29/1980 | US4215322 High frequency oscillating circuit using AT cut quartz crystal vibrator |
| 07/29/1980 | CA1082501A1 Digital touch responsive tempo generating device |
| 07/08/1980 | US4211985 Crystal oscillator using a class B complementary MIS amplifier |
| 06/17/1980 | CA1079521A1 Optical metronome |
| 06/10/1980 | US4206682 Musical rhythm inductor |
| 05/27/1980 | US4204400 Electronic metronome |
| 04/01/1980 | US4196404 Crystal oscillator having low power consumption |
| 03/18/1980 | US4193257 Programmable metronome |
| 03/11/1980 | US4193064 Multiple pulse timer |
| 03/11/1980 | US4192133 Electronic watch with means for producing pulse sound at selected intervals |
| 02/05/1980 | US4187518 Timing device |
| 12/18/1979 | US4179671 Capacitor switching circuits for adjusting crystal oscillator frequency |
| 12/13/1979 | WO1979001101A1 Quartz crystal resonator |
| 12/11/1979 | US4178566 Quartz crystal tuning fork vibrator for a crystal oscillator |
| 10/09/1979 | CA1063814A1 Damage-resistant mechanical metronome |
| 09/11/1979 | US4167686 Miniaturized at-cut piezoelectric crystal resonator |
| 08/14/1979 | US4164732 Pacing device for runners and the like |
| 08/07/1979 | US4163409 Optical metronomes |
| 08/07/1979 | CA1059756A1 Optical metronome |
| 07/10/1979 | US4160928 Case assembly for piezoelectric resonator |
| 07/03/1979 | US4159622 Electronic timepiece having a main oscillator circuitry and secondary oscillator circuitry |
| 06/19/1979 | US4158286 Horologic instruments with random timing source |
| 06/19/1979 | CA1056957A1 Cesium beam tube |
| 05/31/1979 | WO1979000281A1 Atomic beam instrument |
| 04/10/1979 | US4148184 Electronic timepiece utilizing main oscillator circuit and secondary oscillator circuit |
| 04/10/1979 | US4148183 Supporting structure for quartz oscillator |
| 02/27/1979 | US4141209 Crystal controlled oscillator and method of tuning same |
| 02/13/1979 | US4139793 Integral resonant support arms for piezoelectric microresonators |
| 02/13/1979 | CA1048606A1 Apparatus for automatic adjustment of frequency of mechanical resonators |
| 01/23/1979 | CA1047113A1 Apparatus for automatic adjustment of frequency of mechanical resonators |
| 01/16/1979 | CA1046655A1 Semiconductor devices |
| 01/02/1979 | US4132059 Stacked logic design for I2 L watch |
| 12/26/1978 | US4131864 Low voltage compensator for power supply in a complementary MOS transistor crystal oscillator circuit |
| 12/26/1978 | US4131816 Mechanism and method for supporting a tuning fork-type quartz crystal element |
| 12/19/1978 | CA1044761A1 Apparatus for sorting mechanical resonators according to inherent frequency |
| 11/21/1978 | US4126802 Torsional mode CT or DT cut quartz resonator |
| 11/07/1978 | US4124809 Quartz crystal resonator |
| 09/26/1978 | US4117421 Crystal oscillator with reduced power consumption |
| 09/12/1978 | USRE29763 Crystal vibrator mounting |
| 09/12/1978 | US4112670 Electronic timepiece |
| 08/29/1978 | US4110655 Tin-gold alloy |
| 08/29/1978 | US4110640 Standard signal generating apparatus |
| 08/29/1978 | US4109456 Barium titanate and barium stannate |
| 08/15/1978 | US4106278 Electronic timepiece utilizing semiconductor-insulating substrate integrated circuitry |