| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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| 06/10/1980 | US4207481 Power IC protection by sensing and limiting thermal gradients |
| 06/10/1980 | US4207479 Touch sensitive switch arrangement with an I2 L structure |
| 06/10/1980 | US4207478 DC Chopper device |
| 06/10/1980 | US4207464 Photoelectric switch |
| 06/10/1980 | CA1079400A1 Magnetic keyswitch with two-piece support assembly |
| 06/10/1980 | CA1079380A1 Touch switches |
| 06/03/1980 | USRE30296 Digital electronic dimmer |
| 06/03/1980 | US4206418 Circuit for limiting voltage differential in differential amplifiers |
| 06/03/1980 | US4206369 Relay-like control devices, to control device matrixes and to circuits for actuating such devices |
| 06/03/1980 | US4206368 Signal isolating technique |
| 06/03/1980 | US4205782 Remote thermostat heater and method of control therefor |
| 05/29/1980 | WO1980001116A1 Photo-optical keyboards |
| 05/28/1980 | EP0011075A1 Circuit arrangement for the contactless switching of electrical equipments |
| 05/27/1980 | US4205273 Pulse signal amplifier |
| 05/27/1980 | US4205240 Device for progressive electrical switching |
| 05/27/1980 | CA1078491A1 Contactless magnetic switch |
| 05/27/1980 | CA1078464A1 Powering scheme for josephson logic circuits which eliminates disturb signals |
| 05/20/1980 | US4204204 On/off switch arrangements for a touch control bar graph device |
| 05/20/1980 | US4204141 Adjustable DC pulse circuit for variation over a predetermined range using two timer networks |
| 05/20/1980 | US4204131 Depletion controlled switch |
| 05/20/1980 | US4204128 Adjustable time delay relay |
| 05/20/1980 | US4204116 Light activated switch system having high di/dt capability |
| 05/20/1980 | US4203280 Touch sensitive device for a timepiece |
| 05/20/1980 | CA1078072A1 Semiconductor device having a safety circuit |
| 05/20/1980 | CA1078055A1 Manually programmable programme memory |
| 05/14/1980 | EP0010882A1 A switching circuit |
| 05/13/1980 | US4203093 Solid state keyswitch arrangement |
| 05/13/1980 | US4203047 Gate circuit of gate turn-off thyristor |
| 05/13/1980 | US4203040 Force commutated static isolator circuit |
| 05/13/1980 | CA1077572A1 Nerve stimulating device |
| 05/06/1980 | US4201928 Power transistor actuating and bootstrap drive circuit |
| 05/06/1980 | CA1076840A1 Automatic on/off digitally timed electronic switch |
| 05/01/1980 | WO1980000902A1 Digital operate/release timer |
| 05/01/1980 | WO1980000882A1 Solid state noncontacting keyboard employing a differential transformer element |
| 04/29/1980 | US4200826 Timing circuit for game feeder |
| 04/29/1980 | US4200813 Circuit arrangement comprising a high-voltage power transistor |
| 04/29/1980 | US4200779 Device for switching electrical circuits |
| 04/29/1980 | US4200022 Envelope control causing damper effect on percussive voices of electronic musical instrument |
| 04/22/1980 | US4199808 Inverse timer with non-interacting potentiometer settings |
| 04/22/1980 | US4199697 Pulse amplitude modulation sampling gate including filtering |
| 04/22/1980 | US4199695 Avoidance of hot electron operation of voltage stressed bootstrap drivers |
| 04/22/1980 | US4199694 Terminal convertible alternating current switch |
| 04/22/1980 | US4199693 Compensated MOS timing network |
| 04/22/1980 | CA1076278A1 Peak shut-off electronic switch |
| 04/22/1980 | CA1076218A1 High performance latch circuit |
| 04/16/1980 | EP0009957A1 Four lead monolithic Darlington and opto-electronic ignition system incorporating it |
| 04/15/1980 | US4198691 Compact exchange switch for bubble domain devices |
| 04/15/1980 | US4198580 MOSFET switching device with charge cancellation |
| 04/15/1980 | US4198578 Transistor switching circuits with shortened response times |
| 04/15/1980 | US4198541 Signal holding circuit |
| 04/15/1980 | CA1075801A1 Failsafe train vehicle control signal threshold detector apparatus |
| 04/08/1980 | US4197471 Circuit for interfacing between an external signal and control apparatus |
| 04/08/1980 | US4197428 Segmented matrix type switching device with simplified control |
| 04/08/1980 | CA1075365A1 Digital display for cooking time and power of electric cooking device |
| 04/08/1980 | CA1075313A1 Sense point circuit |
| 04/02/1980 | EP0009420A1 A noncontacting switch device employing a differential transformer element |
| 04/02/1980 | EP0009370A1 An electronic switch and method of operating it |
| 04/02/1980 | EP0009225A1 Protective circuit |
| 04/01/1980 | US4196406 Ultrasonic control device |
| 04/01/1980 | US4196381 Low-power voltage and current diode driver |
| 04/01/1980 | US4196362 Clear signal generator circuit |
| 04/01/1980 | US4196361 Temperature change detector |
| 04/01/1980 | US4196358 Analog multiplexer |
| 04/01/1980 | US4196348 Contactless snap-action photoelectric switch |
| 04/01/1980 | CA1074865A1 Transistor switching circuit with feedback inductor |
| 04/01/1980 | CA1074862A1 Switchable very high tension generator |
| 03/19/1980 | EP0008668A1 Constant current switch and its use for powering infrared light-emitting diodes |
| 03/18/1980 | US4194135 Electronic signal level translating circuitry |
| 03/18/1980 | US4194134 Two-terminal network comprising a transistor |
| 03/18/1980 | US4194083 Capacitively coupled tablet |
| 03/18/1980 | CA1073973A1 Current control circuit |
| 03/18/1980 | CA1073969A1 Stored energy module |
| 03/11/1980 | US4193049 Ultrasonic touch control panel |
| 03/11/1980 | US4193023 Electronic monitoring system with low energy consumption in quiescent state |
| 03/11/1980 | US4192641 Combustion control apparatus |
| 03/06/1980 | WO1980000394A1 Voltage generator circuitry |
| 03/04/1980 | US4191900 Precision plural input voltage amplifier and comparator |
| 03/04/1980 | US4191898 High voltage CMOS circuit |
| 03/04/1980 | US4191894 Proximity detector |
| 03/04/1980 | US4191856 Analog multiplexer |
| 03/04/1980 | CA1073083A1 Solid state dual timer |
| 02/26/1980 | US4190790 Isolator circuit for use with frequency sensitive switching circuit |
| 02/26/1980 | US4190785 Pressure sensitive signal generator using piezoelectric coating |
| 02/19/1980 | US4189651 Transistor switch device |
| 02/19/1980 | CA1072188A1 Input-interruption timer |
| 02/12/1980 | US4188550 Photodetector circuit |
| 02/12/1980 | US4188549 Acoustically responsive sensor switch |
| 02/12/1980 | US4188548 Semiconductor switching circuit |
| 02/12/1980 | US4188547 Multi-mode control logic circuit for solid state relays |
| 02/06/1980 | EP0007795A1 A method of and apparatus for monitoring the operation of a vehicle |
| 02/06/1980 | EP0007561A1 Contactless relay |
| 02/05/1980 | US4187421 Optical relay |
| 01/29/1980 | US4186437 Push-pull switching power amplifier |
| 01/29/1980 | US4186418 Overvoltage protected integrated circuit network, to control current flow through resistive or inductive loads |
| 01/29/1980 | US4186382 Switching network |
| 01/29/1980 | US4185621 Body parameter display incorporating a battery charger |
| 01/24/1980 | WO1980000112A1 Envelope control causing damper effect on percussive voices of electronic musical instrument |
| 01/23/1980 | EP0007280A1 Improvements in electrical control devices of the push-button type |
| 01/22/1980 | US4185210 Contact de-bouncing circuit with common mode rejection |
| 01/22/1980 | CA1070411A1 Signal input devices and systems |