Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
02/1984
02/21/1984US4433309 Proximity switch with built-in test circuit
02/21/1984US4433251 Power supply circuitry
02/21/1984US4433249 Energy conservation system
02/16/1984WO1984000649A1 Multiplexer circuitry for high density analog signals
02/15/1984EP0100737A2 Tristate enable gate with power supply threshold activation circuit
02/15/1984EP0100339A1 A circuit for applying a high voltage signal to a fusible link
02/14/1984US4432041 Smoke penetrating emergency light
02/14/1984US4432033 Power source for a solenoid controlled fluid pressure device
02/14/1984US4432016 Translating circuit for television receiver on-screen graphics display signals
02/14/1984US4431927 MOS Capacitive bootstrapping trigger circuit for a clock generator
02/14/1984US4431914 Photoelectron switching in semiconductors in the picosecond time domain
02/14/1984US4431871 Solid state relay
02/14/1984CA1162239A1 Latch-up prevention circuit for power output devices using inductive loads
02/07/1984US4430732 Switch matrix apparatus for satellite-switched TDMA system or the like
02/07/1984US4430684 Transistor switching means
02/07/1984US4430609 Signal transfer device having a transfer characteristic which is adjustable in steps
02/07/1984US4430608 Base drive circuit
02/07/1984US4430595 Piezo-electric push button switch
02/07/1984US4430586 Switch with an MIS-FET operated as a source follower
02/07/1984US4430583 Apparatus for increasing the speed of a circuit having a string of IGFETs
02/07/1984CA1161928A1 Positive differential alternating current switching means
01/1984
01/31/1984US4429339 AC Transistor switch with overcurrent protection
01/31/1984US4429237 High voltage on chip FET driver
01/31/1984US4429234 Threshold switch
01/31/1984CA1161530A1 Sequential initiation of explosions
01/25/1984EP0099278A1 Tight key-switch
01/25/1984EP0099191A2 Temperature stable interval timer
01/25/1984EP0098828A1 Circuit for detecting loss of supply voltage
01/24/1984US4428015 Overcurrent limiter circuit for switching regulator power supplies
01/24/1984US4428008 Electronic switching circuit for use in magnetic head drives
01/24/1984US4427902 Optimum transistor drive circuit with over load compensation
01/17/1984US4426626 Signal switching circuit
01/17/1984US4426615 Solid state electronic power switch
01/17/1984US4426590 Switch controllable off and on by pulses
01/17/1984US4426589 Low-loss semiconductor switching circuit
01/17/1984CA1160697A1 Broadband high speed optoelectronic semiconductor switch
01/11/1984EP0097902A2 Sampling circuit
01/11/1984EP0097889A2 Driver circuit with means for reducing self-induced switching noise
01/11/1984EP0097857A2 Current switch emitter follower
01/10/1984US4425563 Switch circuit arrangement
01/10/1984US4425518 High voltage field effect transistor pulse apparatus
01/10/1984US4425511 Planar coil apparatus employing a stationary and a movable board
01/10/1984CA1160349A1 High resolution fast diode clamped comparator
01/10/1984CA1160313A1 Storage camparator, for regenerating digital electric signals and digital transmission system using such a comparator
01/10/1984CA1160286A1 Dynamic contact checking circuit
01/05/1984WO1984000088A1 Level sensitive reset circuit for digital logic
01/04/1984EP0097498A1 Touch sensing device
01/04/1984EP0097248A2 Switchable current source
01/03/1984USRE31485 Waveform transition sensitive Josephson junction circuit having sense bus and logic applications
01/03/1984US4424544 Optically toggled bidirectional switch
01/03/1984US4424458 Contactless proximity sensor with multilevel response
01/03/1984US4424456 Driver circuit for charge coupled device
12/1983
12/28/1983EP0096958A1 Method of and apparatus for repairing drains and underground pipelines
12/28/1983EP0096944A1 Circuit with several signal paths formed by active arrangements
12/27/1983US4423464 Variable capacitance type push-button switch
12/27/1983US4423457 Overload protection circuit for a semiconductor switch
12/27/1983US4423431 Semiconductor integrated circuit device providing a protection circuit
12/27/1983US4423357 Switchable precision current source
12/27/1983US4423341 Fast switching field effect transistor driver circuit
12/27/1983US4423322 Self diagnostic switch circuit
12/27/1983US4422378 Means for and a method of initiating explosions
12/27/1983CA1159522A1 System for coupling a capacitance to an ac voltage network
12/22/1983WO1983004458A1 Proximity switch circuit
12/21/1983EP0096651A1 Two-pole overcurrent protection
12/21/1983EP0096531A1 One-chip semiconductor device incorporating a power-supply-potential detecting circuit with reset function
12/21/1983EP0096332A2 Electronic switching apparatus operating without contact
12/21/1983EP0096174A2 Biased power transistor driving circuit
12/21/1983EP0096131A1 Process and circuit for exciting solenoid coil
12/20/1983US4421994 High speed line driver with ground output capability
12/13/1983US4420743 Voltage comparator using unequal gate width FET's
12/13/1983US4420700 Semiconductor current regulator and switch
12/13/1983US4420695 Synchronous priority circuit
12/13/1983US4420694 Muting circuit
12/13/1983US4420651 Proximity switch operable without physical contact
12/13/1983US4419933 Apparatus and method for selectively activating plural electrical loads at predetermined relative times
12/13/1983US4419776 Bathtub assembly for handicapped persons
12/13/1983CA1158725A1 Ultra high resolution josephson sampling technique
12/07/1983EP0095579A1 Protection circuit for a switching transistor
12/06/1983US4419646 Electric proximity sensor
12/06/1983US4419596 Power on clear circuit
12/06/1983US4419592 Bidirection data switch sequencing circuit
12/06/1983US4419586 Solid-state relay and regulator
12/06/1983US4419541 Pulsive noise removing apparatus
12/06/1983CA1158309A1 Vmos/bipolar power switch
11/1983
11/30/1983EP0094972A1 Photocoupler
11/29/1983US4417824 Optical keyboard with common light transmission members
11/29/1983CA1157925A1 Capacitive touch control switch panels and method of manufacturing them
11/22/1983US4417294 Capacitive keyswitch
11/22/1983US4417292 Power amplifier protection circuit
11/22/1983US4417164 Mechanical valve analog
11/22/1983US4417161 Complementary channel type MOS transistor exclusive OR/NOR logic gate circuit
11/22/1983US4417159 Diode-transistor active pull up driver
11/22/1983US4417156 Gate circuit for thyristors
11/22/1983US4417155 Anti-chatter circuit for small portable apparatus
11/22/1983US4417154 Circuit for applying a high voltage signal to a fusible link
11/22/1983US4417153 High frequency switching circuit
11/22/1983US4417152 Electric switching device
11/22/1983US4417099 Electro-optical isolator circuit for line powered modem
11/16/1983EP0094145A2 High gain thyristor switching circuit
11/16/1983EP0094130A2 Data entry keyboard apparatus