Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
02/1979
02/06/1979CA1047939A1 Touch plate assembly
01/1979
01/30/1979US4137512 Contactless magnetic switch
01/30/1979US4137492 Stored energy module
01/30/1979US4137475 Thin film, thermoplastic piezoelectric switches
01/30/1979US4137467 Sensor interface circuit
01/30/1979US4137428 Optically actuated bidirectional semiconductor switch
01/30/1979CA1047635A1 Semiconductor speech channel switch
01/30/1979CA1047608A1 Cmos digital circuits with resistive shunt feedback amplifier
01/23/1979US4136291 Capacitive touch-pad devices with dynamic bias
01/16/1979US4135124 Electronic monitoring system with selective signal inverter
01/16/1979US4135099 High energy, short duration pulse system
01/16/1979CA1046418A1 Signal input devices and systems
01/09/1979US4134132 Circuit arrangement for display boards having luminous elements arranged in a matrix
01/09/1979US4134030 Hall-effect integrated circuit switch
01/09/1979US4134025 Electric switch arrangement for use as a current supply switching means for a bipolar electric load
01/09/1979CA1046143A1 Electronic circuit using field effect transistor with compensation means
01/09/1979CA1046142A1 Drive circuit for controlling conduction of a semiconductor device
01/09/1979CA1046139A1 D.c. power supply circuit
01/02/1979US4132902 Switch
01/02/1979US4132865 Electronic switch
01/02/1979CA1045697A1 Touch actuated electronic switch
01/02/1979CA1045691A1 Method and apparatus for extending the operating range of a condition monitoring system
12/1978
12/26/1978US4131927 A.C. power supply circuit with surge current suppression
12/26/1978US4131908 Semiconductor protection device having a bipolar lateral transistor
12/26/1978CA1045241A1 Fail-safe time-delay circuit for relays
12/26/1978CA1045217A1 Constant impedance mosfet switch
12/19/1978US4130827 Integrated circuit switching network using low substrate leakage current thyristor construction
12/19/1978US4130767 Semiconductor switch
12/19/1978US4130763 Machine guard installations
12/19/1978CA1044769A1 Latching driver circuit and structure for a gas panel display
12/19/1978CA1044768A1 Quantum interference josephson logic devices
12/12/1978US4129812 Electronic timer
12/12/1978US4129794 Electrical integrated circuit chips
12/12/1978US4129791 Solid state switching circuit
12/12/1978US4129785 Solid state switch
12/05/1978US4128896 One-level switch for magnetic bubble domain devices
12/05/1978US4128742 Rugged crosspoints for communication systems
12/05/1978CA1043917A1 Electromagnetic coordinate switching device
12/05/1978CA1043876A1 Electronic switch
11/1978
11/28/1978US4127823 Programmable controller
11/28/1978US4127784 Light activated solid state microwave generators
11/28/1978US4127783 Regulated constant current circuit
11/28/1978CA1043451A1 Weather radar transistorized pulse modulator
11/21/1978US4126795 Timing unit
11/14/1978US4125880 Simplified output circuit for read only memories
11/14/1978US4125855 Integrated semiconductor crosspoint arrangement
11/14/1978US4125813 Operational amplifier decoupling circuit
11/14/1978US4125794 Electronic touch key
11/14/1978US4125787 Semiconductor switch circuit
11/14/1978US4125783 Touch switches
11/14/1978CA1042520A1 Fet load gate compensator
10/1978
10/31/1978US4123722 Operational amplifier decoupling circuit
10/31/1978US4123671 Integrated driver circuit for display device
10/31/1978US4123670 Transistor switching circuit
10/31/1978US4123631 Touch switch
10/24/1978US4122545 Memory array of inversion controlled switches
10/24/1978US4122537 Magnetic bubble crossover circuit
10/24/1978US4122361 Delay circuit with field effect transistors
10/24/1978US4122360 Logic circuit using CMOS transistors
10/24/1978CA1041204A1 Current-operated circuits
10/17/1978US4121204 Bar graph type touch switch and display device
10/17/1978US4121122 Current sensing circuitry
10/17/1978US4121118 Bipolar signal generating apparatus
10/17/1978US4121113 Electric switch
10/17/1978US4121060 Touch button switch for dictation handset
10/17/1978CA1040734A1 Light activated semiconductor switch device
10/10/1978US4120014 Dividing timer
10/10/1978US4119957 Digital display for cooking time and power of electric cooking device
10/10/1978US4119868 Circuit arrangement
10/10/1978US4119864 Touch switch circuits
10/10/1978US4119845 Thermally-sensitive, photo-controlled semiconductor switching systems
10/10/1978US4119843 Article detection system with synchronous demodulation
10/10/1978US4119835 Electronic thermostat
10/10/1978CA1040268A1 Magnetic field sensing apparatus
09/1978
09/26/1978US4117503 Josephson interferometer structure which suppresses resonances
09/26/1978US4117393 Electronic monitoring system with low energy consumption in quiescent state
09/26/1978US4117354 Two-part current injection interferometer amplifiers and logic circuits
09/26/1978US4117351 Transistor switching circuit
09/26/1978US4117350 Switching circuit
09/26/1978US4117349 Solid state alternating current switching device
09/26/1978CA1039423A2 Lamp power supply arrangement for key telephone system
09/26/1978CA1039393A1 Matrix module and switching network
09/19/1978US4115763 Electrical switching system
09/19/1978US4115711 Threshold circuit with hysteresis
09/19/1978US4115710 Substrate bias for MOS integrated circuit
09/19/1978US4115707 Circuit for single-line control of GTO controlled rectifier conduction
09/19/1978CA1038947A1 Electrical proximity switch arrangements
09/19/1978CA1038929A1 Gate pulse power supply for static alternating current switch
09/12/1978US4114054 Coupling circuit using a photocoupler
09/12/1978US4112764 Automatic on/off digitally timed electronic switch
09/12/1978CA1038502A1 Semiconductor switch device
09/12/1978CA1038449A1 Apparatus having a protective circuit
09/05/1978US4112429 Multifunction sequence operated integrated switch-display device
09/05/1978US4112408 Device for producing an electrical pulse in response to passage of a magnetically conducting member through an air gap
09/05/1978US4112315 Semiconductor switch circuit
09/05/1978US4112314 Logical current switch
09/05/1978US4112312 Fluid sensitive switching member
09/05/1978CA1038083A1 Bilateral switching integrated circuit
09/05/1978CA1038068A1 Semiconductor channel switch
09/05/1978CA1038049A1 Gated ramp generator