H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking

Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
01/1980
01/15/1980	US4184087 Window discriminator or voltage range sensor
01/15/1980	US4184086 Semiconductor switch
01/15/1980	CA1069975A1 Semiconductor switch
01/09/1980	EP0006622A2 Circuit for selectively through-connecting or blocking broad-band signals
01/08/1980	US4183087 Peak deviation sampling
01/08/1980	US4182992 Pulse width modulated signal amplifier
01/08/1980	US4182963 Pulse shaping circuit
01/01/1980	US4181843 Variable resistance type sensor controlled switch
01/01/1980	US4181841 Signal distribution circuit including load regulator
01/01/1980	US4181086 Pattern selecting system for sewing machine
12/1979
12/25/1979	US4180750 Transistor switching circuit with shortened response time
12/25/1979	US4180748 Electronic solid state switching device
12/25/1979	US4180087 Automatic control for an adjustable member
12/25/1979	CA1068798A Detecting element for a control device for invalids
12/25/1979	CA1068785A Protective arrangement for dependent switching circuits
12/25/1979	CA1068784A Forced commutation chopper having current limit
12/25/1979	CA1068783A Short circuit protection circuit
12/25/1979	CA1068782A Protective circuit for thyristors
12/18/1979	US4179691 Infrared intrusion detector circuit
12/18/1979	US4179629 Failsafe logic function apparatus
12/18/1979	CA1068338A1 Scr d.c. interrupter
12/12/1979	EP0005846A1 Magnetic bubble transfer switch
12/11/1979	US4178620 Three state bus driver with protection circuitry
12/11/1979	US4178619 Protective integrated circuit network, particularly for connection to an inductive load
12/11/1979	US4178605 Complementary MOS inverter structure
12/11/1979	CA1068008A1 Mos input protection structure
12/11/1979	CA1068000A1 Device for reading out the charge condition of a phototransistor
12/04/1979	US4177445 Contactless switching element for electric current
12/04/1979	US4177392 Current switching networks
12/04/1979	US4176575 Improved touch operated capacitance switch circuit for an electronic organ
11/1979
11/29/1979	WO1979001028A1 Switch device for controlling the closure of folding doors
11/27/1979	US4176401 Digital communications system
11/27/1979	US4176288 Zero voltage switching solid state relay
11/27/1979	US4175375 Electronic watch having improved level setting circuit
11/27/1979	CA1067173A1 Charge sensitive switch
11/27/1979	CA1067160A1 Threshold i2l circuit with hysteresis
11/20/1979	US4175289 Serrated Y-bar magnetic bubble switch
11/20/1979	US4175239 Detection means for touch control switches
11/20/1979	CA1066771A1 Semiconductor switch device
11/15/1979	WO1979000914A1 Memory device
11/13/1979	USRE30150 Inductor drive means
11/13/1979	US4174495 Static current limiting switch with soft forced commutation
11/06/1979	US4173769 Circuit arrangement a portion of which is included within in a monolithic integrated semiconductor body
11/06/1979	US4173723 Photo detector input circuit
11/06/1979	CA1065618A1 Patch cord timer
10/1979
10/30/1979	US4173029 Protective circuit for selectively applying power to a motor
10/23/1979	US4172269 Circuit for overshoot supression in X-ray generators
10/23/1979	US4172221 Circuit arrangement for automatically closing a switching transistor for a predetermined time period after opening a switching means
10/17/1979	EP0004734A1 Comparator
10/17/1979	EP0004701A2 A method of and apparatus for reducing priming and sweep-out losses in SCR switching circuits
10/16/1979	US4171517 Apparatus for synchronization control of a plurality of inverters
10/09/1979	US4170740 High voltage switch and capacitive drive
10/09/1979	CA1064110A1 Wired broadcasting systems
10/09/1979	CA1064108A1 Semiconductor switch
10/09/1979	CA1064107A1 Four-layered semiconductor switch
10/03/1979	EP0004520A1 Keyboard with an array of light beam splitters
10/03/1979	EP0004306A2 Circuitry for excess current protection of electronic sending and receiving devices
10/02/1979	US4169982 Touch-actuated electronic switch
10/02/1979	US4169970 Memorial audio reproduction system
10/02/1979	CA1063683A1 Bidirectional thyristor switch circuit
10/02/1979	CA1063673A1 Four-layer semiconductor switch
09/1979
09/25/1979	US4169259 Frequency sensitive switching circuit
09/25/1979	CA1063207A1 Magnetic field sensing apparatus
09/25/1979	CA1063189A1 Configuration for reducing the turn-off time of a thyristor
09/19/1979	EP0003963A1 Field effect transistor protection circuit and its use in clock phase generators
09/18/1979	US4168443 Two-wire proximity detector
09/11/1979	USRE30094 Optoelectronic switch
09/11/1979	US4167696 Zero phase switching for multi-phase systems
09/11/1979	CA1062342A1 Stereophonic signal demodulator
09/04/1979	US4167030 Protective circuit for an electronic switching amplifier in series with an electromagnet
09/04/1979	US4166965 Threshold gate
09/04/1979	US4166947 TTL Compatible LED driver circuit
09/04/1979	CA1061884A1 Optoelectronic device having improved integration density and photocoupling efficiency
09/04/1979	CA1061862A1 Power switching control circuit with enhanced turn-off drive
08/1979
08/28/1979	US4166224 Photosensitive zero voltage semiconductor switching device
08/28/1979	US4166087 Automatic intermittent vapor dispenser
08/28/1979	CA1061408A1 Semiconductor bidirectional switch circuit
08/28/1979	CA1061407A1 Blocking circuit for thyristors
08/23/1979	WO1979000564A1 Delay circuit
08/21/1979	US4164842 Buffer amplifier circuit
08/21/1979	CA1060959A1 Clustered logic arrays
08/14/1979	US4164747 Semiconductor arrangement
08/14/1979	US4164706 Rotational position detector utilizing an FET blocking oscillator
08/14/1979	US4164667 Semiconductor switch device
08/14/1979	US4164665 Manually programmable storage device
08/14/1979	CA1060571A1 Remote control with reduced responsiveness to interrupted actuating signals
08/08/1979	EP0003412A2 Electric delay device
08/07/1979	US4163887 Pulse generator for electroerosive processing
08/07/1979	CA1060116A1 Digital control for a cooking time and power of an electric cooking device
08/07/1979	CA1060115A1 Proximity switch
07/1979
07/31/1979	US4163271 Electronic switching apparatus
07/31/1979	US4163222 Synchronous phase detected keyboard
07/31/1979	US4163189 Transformer with a ferromagnetic core for d-c and a-c signals
07/31/1979	US4163159 Attenuation-free electronic switch
07/24/1979	US4162440 Limit controller
07/24/1979	US4162413 Semiconductor switch
07/24/1979	CA1059212A1 Drive circuit for power switching devices
07/17/1979	US4161766 Laminated capacitive touch-pad
07/17/1979	US4161685 Solid state proximity switch
07/17/1979	US4161663 High voltage CMOS level shifter

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