| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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| 02/14/1978 | US4074143 Optoelectronic device with optical feedback |
| 02/14/1978 | US4074142 Optical cross-point switch |
| 02/14/1978 | US4074128 Photoelectric signal generating circuits |
| 02/14/1978 | US4074076 Chopper-multiplexer system for measurement of remote low-level signals |
| 02/07/1978 | US4072981 Fast switching Darlington circuit |
| 02/07/1978 | US4072868 FET inverter with isolated substrate load |
| 01/31/1978 | US4071785 Laminated piezoelectric matrix switch |
| 01/31/1978 | US4071784 MOS input buffer with hysteresis |
| 01/31/1978 | US4071783 Enhancement/depletion mode field effect transistor driver |
| 01/31/1978 | US4071779 Semiconductor switch |
| 01/31/1978 | US4071773 Patch cord timer |
| 01/24/1978 | US4070700 Detecting element for a control device for invalids |
| 01/24/1978 | US4070589 High speed-high voltage switching with low power consumption |
| 01/24/1978 | US4070587 Energizing control system for an intermittently energized device |
| 01/24/1978 | US4069659 Electronic switch activated by current flow through the human body |
| 01/17/1978 | US4069430 MIS switching circuit capable of enduring high voltage |
| 01/10/1978 | US4068293 SCR d.c. interrupter |
| 01/10/1978 | US4068273 Hybrid power switch |
| 01/10/1978 | US4068255 Mesa-type high voltage switching integrated circuit |
| 01/10/1978 | US4068189 Linear oscillator for proximity sensor |
| 01/10/1978 | US4068135 Signal isolating and sampling circuit |
| 01/03/1978 | US4067055 High-speed inductance driver |
| 01/03/1978 | US4066956 Semiconductor switch device having means for supplying control current to a control electrode |
| 01/03/1978 | US4066919 Sample and hold circuit |
| 01/03/1978 | US4066918 Protection circuitry for insulated-gate field-effect transistor (IGFET) circuits |
| 01/03/1978 | US4066350 Character display and input device |
| 12/27/1977 | US4065805 Circuit arrangement in an electrical device operated with direct-current, especially in a timing relay |
| 12/27/1977 | US4065757 Thin film plated wire magnetic switch of adjustable threshold |
| 12/27/1977 | US4065709 Digital apparatus for setting the voltage across a capacitor |
| 12/27/1977 | US4065683 Circuitry for industrial logic systems |
| 12/27/1977 | US4065680 Collector-up logic transmission gates |
| 12/27/1977 | US4065669 Solid-state limit switch utilizing infrared link |
| 12/20/1977 | US4064404 Accessory for a garage door opener |
| 12/13/1977 | US4063229 Article surveillance |
| 12/13/1977 | US4063117 Circuit for increasing the output current in MOS transistors |
| 12/13/1977 | US4063116 Temperature compensated current source |
| 12/13/1977 | US4063115 Semiconductor switch |
| 12/13/1977 | US4063111 Solid state touch switch |
| 12/06/1977 | US4062051 Battery spark suppression circuit |
| 12/06/1977 | US4062039 Semi-conductor integrated circuit |
| 12/06/1977 | US4062007 Solid-state delay timed switching circuit |
| 12/06/1977 | US4061988 Hall effect linear motion switch |
| 12/06/1977 | US4061951 Timing circuit for incremental actuators |
| 12/06/1977 | US4061933 Clock generator and delay stage |
| 12/06/1977 | US4061931 Switching regulator power supply main switching transistor turn off speed up circuit |
| 11/29/1977 | US4060758 Power switching circuit having a Darlington connected transistor pair |
| 11/29/1977 | US4060052 Coating apparatus control including time dependent inhibitor circuit |
| 11/22/1977 | US4059774 Switching inverter with thermoconductive materials |
| 11/15/1977 | US4058814 Electrographic writing system with diode switching assembly |
| 11/15/1977 | US4058770 Solid state subscriber selection switches for wired broadcasting systems |
| 11/15/1977 | US4058741 Semiconductor switch circuit |
| 11/15/1977 | US4058735 Opto-electronic contact mechanism |
| 11/08/1977 | US4057844 MOS input protection structure |
| 11/01/1977 | US4056806 Or memory panels |
| 11/01/1977 | US4056740 Differential input-differential output transistor switching cell |
| 11/01/1977 | US4056734 Compensated base drive circuit to regulate saturated transistor current gain |
| 11/01/1977 | US4056699 Touch plate assembly |
| 10/25/1977 | US4055775 Transmission circuit for direct current data transmission |
| 10/25/1977 | US4055755 Switching assembly in combination wristwatch and calculator |
| 10/25/1977 | US4055129 Digital differential capacitance proximity switch |
| 10/18/1977 | US4054898 Switching system to short-circuit a load with minimum residual voltage |
| 10/18/1977 | US4054860 Hall effect rotary switch |
| 10/18/1977 | US4054828 Cyclically operating transistorized power switching circuit system |
| 10/18/1977 | US4054817 Pulse controllers |
| 10/18/1977 | US4054805 Electronic switching device |
| 10/18/1977 | US4054804 Bipolar charging and discharging circuit |
| 10/18/1977 | US4054795 Photoelectric sensing system with light source compensating means |
| 10/11/1977 | US4053791 Logic circuit of ratioless structure |
| 10/11/1977 | US4053790 Power line switch with time delay turn off |
| 10/11/1977 | US4053789 Touch actuated system responsive to a combination of resistance and capacitance |
| 10/04/1977 | US4052660 Dc series voltage regulator with gating means for output to remain off until regulation level is reached |
| 10/04/1977 | US4052625 Motor speed control circuit with overload protection |
| 10/04/1977 | US4052624 Ramp and pedestal control circuit |
| 10/04/1977 | US4052623 Isolated semiconductor gate control circuit |
| 09/27/1977 | US4051428 Current control circuit with current proportional circuit |
| 09/27/1977 | US4051394 Zero crossing ac relay control circuit |
| 09/27/1977 | US4051393 Current switched josephson junction memory and logic circuits |
| 09/27/1977 | US4051391 Current-operated circuits and structures |
| 09/27/1977 | US4051384 Blocking circuit for thyristors |
| 09/20/1977 | US4050064 Four-level voltage supply for liquid crystal display |
| 09/20/1977 | US4049980 IGFET threshold voltage compensator |
| 09/20/1977 | US4049976 Solid-state voltage switching circuit |
| 09/20/1977 | US4049964 Optical switching device |
| 09/13/1977 | US4048665 Driver circuit for printer electromagnet |
| 09/13/1977 | US4048632 Drive circuit for a display |
| 09/13/1977 | US4048626 Memory device |
| 09/13/1977 | US4048522 Solid state break-before-make base module and associated contact elements |
| 09/06/1977 | US4047241 Capacitive switch |
| 09/06/1977 | US4047233 Short circuit protection circuit |
| 09/06/1977 | US4047119 Transistor differential amplifier circuit |
| 09/06/1977 | US4047058 Alternating controller comprising pair of mutually exclusively-operated timers |
| 09/06/1977 | US4047057 Monostable switching circuit |
| 09/06/1977 | US4047054 Thyristor switching circuit |
| 09/06/1977 | US4047010 Multi-functional electronic watch |
| 08/30/1977 | US4045692 Solid state binary logic signal source for electronic timepiece or the like |
| 08/30/1977 | US4045691 Level shift circuit |
| 08/30/1977 | US4045688 Power-on reset circuit |
| 08/30/1977 | US4045629 Electrical proximity switch arrangements |
| 08/23/1977 | US4044373 IGFET with gate protection diode and antiparasitic isolation means |
| 08/23/1977 | US4044272 Fail-safe electronic time delay circuit |