Matches 1 - 50 out of 189 1 2 3 4 >


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7929580 Inexpensive terahertz pulse wave generator  
Pulses of signals in the terahertz region are generated using an apparatus made up of a mode-locked semiconductor laser diode with a short duty cycle that is optically coupled to a biased Auston...
7902532 Systems and methods involving transducer signals  
A system for operating a transducer comprising, a first node connected to a first transducer, a first photo-activated switching device having a first source, a first drain connected to the first...
7545156 Test circuit and test method that includes supplying a current to a plurality of light-receiving elements  
The test circuit according to the present invention includes: a plurality of light-receiving elements; a plurality of amplifiers, each of which converts, into a voltage, a photoelectric current...
6906388 SEU hard majority voter for triple redundancy  
Majority voting between triple redundant integrated circuits is used in order to provide an SEU hardened output signal. Accordingly, an input signal is processed in a predetermined manner to...
5689203 Self-calibration circuit for pulse-train tranducer signals  
A self-calibration circuit for sensors and transducers that produce pulse-train outputs of the type having a count-until-disabled counter (250) which counts the number of pulses corresponding to a...
5671437 Quantum dot-tunnel device and information processing apparatus and method using same  
A novel quantum dot-tunnel device having a revolutionarily faster processing speed and higher processing precision than conventional computer computation, which device has an array consisting of a...
5471049 Light detecting apparatus having low noise automatic gain control circuit  
A laser light detector is provided which can be used to detect pulsed laser light that is produced by a rotating laser light source on a construction job site. The laser light detector provides an...
5434524 Method of clocking integrated circuit chips  
A method of clocking integrated circuit chips. A pulsed laser striking an integrated circuit module substrate is diffused through the substrate and exits the opposite surface as diffused light...
5260614 Hall sensor with automatic compensation  
A circuit and method automatically compensate a monolithic integrated Hall sensor having a Hall element therein, wherein a device for generating operating currents is technologically and thermally...
5196734 CCS latch with in-circuit redundancy  
A Cascode Current Switch latch is made insensitive to single event upset from radiation-induced charge by the addition of two transistors forming a second feedback path that renders one storage...
5144405 Temperature compensation apparatus for logic gates  
A temperature compensation circuit enables the reliable operation of semiconductor logic gates over wide temperature ranges. The temperature compensation circuit includes a thin film resistor in...
5018000 Semiconductor device using MIS capacitor  
A MIS capacitor to be implemented in a semiconductor device employing various or predetermined circuits, has a dielectric side electrode which is in contact with a buried layer provided on a...
4940905 ECL flip-flop with improved x-ray resistant properties  
An ECL flip-flop circuit has a data holding differential transistor pair and a feedback circuit provided between the collectors and bases of this differential transistor pair. The feedback circuit...
4891531 ECL flip-flop with improved α-ray resistant properties  
An ECL flip-flop circuit has a data holding differential transistor pair and a feedback circuit provided between the collectors and bases of this differential transistor pair. The feedback circuit...
4872141 Radiation hard memory cell having monocrystalline and non-monocrystalline inverters  
A radiation hard memory cell comprises on an insulating substrate a low output impedance inverter made of a monocrystalline semiconductor and a high output impedance inverter made of a...
4810900 ECL circuit with improved α-ray resistant properties  
A semiconductor integrated circuit device with an ECL sequential circuit is disclosed, which comprises a data holding circuit provided the ECL sequential circuit for holding the output thereof,...
4801821 Integrated bistable electronic commutator with a low voltage drop  
Integrated bistable electronic commutator comprising a switch provided with at least two terminals, said switch incorporating at least one MOS power transistor (8); a MOS technology control...
4724338 Generation of narrow-band, delayed electrical pulses  
Narrow-band electrical pulses which are delayed with respect to a first direct pulse produced are generated by a method in which space charges are pulsed in an electric field in a dielectric.
4716551 Semiconductor memory device with variable self-refresh cycle  
A semiconductor memory device with an internal refresh circuit is disclosed. The internal refresh circuit includes a timer circuit which generates a refresh request signal in a shorter cycle at a...
4705964 Integrated circuit hall switch with adjustable operate point  
A silicon integrated circuit has a Hall-element, a differential amplifier and a Schmitt trigger circuit connected in tandem to form a Hall switch. It is demonstrated that only one set of component...
4699520 Temperature measuring device for recording large changes in temperature  
A temperature measuring device for recording large changes in temperature, especially for recording the temperatures in an internal combustion engine. An NTC resistor is connected with a constant...
4695733 Photoconductive power switch  
A photoconductive power switch capable of producing electrical pulses of at least 10 amperes and 100 volts at switching speeds of one nanosecond or less is disclosed. The photoconductive power...
4678937 Electrical isolation circuit  
A circuit provides electrical isolation from an input signal which has a leading edge and a trailing edge. On the leading edge of the input signal, a first signal is transmitted across an...
4647794 Solid state relay having non overlapping switch closures  
A solid state relay circuit is provided which controls the application of power to multiple loads in a manner which prevents the simultaneous application of power to more than one load....
4504974 Opto-electronic repeater  
An opto-electronic repeater provides by means of a differentiation circuit and a trigger circuit a considerable extension of the life of the radiation-emitting element by reducing the duty cycle...
4486656 Pulsed light barrier apparatus for direct connection to an a.c. supply  
Pulsed light barrier apparatus is driven directly from an a.c. supply voltage connected to the terminals L and M with the terminal M being earthed. A storage capacitor 14 is charged during the...
4456943 Current sensing relay  
A current sensing relay assembly is disclosed wherein current sensing devices are integrated with relay outputs on a single printed circuit assembly. By integrating the output and sensor, all...
4413192 Transistor firing circuit  
In a transistor firing circuit including a transistor, a firing coil having a primary winding across which a flyback voltage appears, and a Zener diode connected at the input side of the...
4328528 Two-wire condition control circuit means  
A condition control device has been shown as a thermostat that not only controls, but draws power from the same two conductors. The drawing of power from the control conductors is accomplished by...
4324981 Light transmission load control system  
A light transmission load control system including a light responsive load controller for controlling a load setable in two states in response to optical impulses generated by an optical impulse...
4229701 Pulse order recognition circuit  
A circuit which has two inputs at which respective ones of two time-displaced pulses may be received. The circuit also has an output at which a signal is produced if the pulses arrive in one order...
4225797 Pulse generator circuit triggerable by nuclear radiation  
A pulse generator circuit triggerable by a pulse of nuclear radiation. The pulse generator circuit includes a pair of transistors arranged, together with other electrical components, in the...
4179751 Memory apparatus for disaster preventing system  
A memory apparatus which serves as an interface apparatus between an alarm system and a computer, whereby alarm signals from the alarm system each containing as its content a class of alarm, e.g.,...
4135099 High energy, short duration pulse system  
A system for switching a high energy, short duration pulse from a high energy source to an impedance matched series load. A light activated semiconductor device having a rectifying junction is...
4105902 Touch sensitive input for electronic wristwatch and/or electronic calculator  
A touch sensitive input particularly suited for use with an electronic wristwatch, an electronic calculator or a combination thereof is provided. The touch sensitive input includes a touch...
4075507 Circuit arrangement for evaluating signals, particularly output signals of optical measuring devices  
The circuit arrangement includes a measuring device having an output circuit connected to one input of a comparator, and including a voltage divider whose tap is connected to the other input of...
4047113 Feedback circuitry for charge digitizer  
Feedback circuitry for a charge digitizer is disclosed. The feedback circuitry includes a photo-diode coupled between the input of the integrator and the biasing voltage of the photo-diode and a...
4011469 Hall effect-switching device  
In an integrated semiconductor Hall-effect switching device, the Hall element is effectively prebiased by unequal base-emitter junction internal voltage drops resulting from unequal base-emitter...
4001613 Proximity sensing circuit  
A proximity sensor system includes first and second circuits connected at their inputs to a source of sampling pulses and at their outputs to a difference circuit. A proximity sensor is connected...
4000499 Galvano-magnetic effect control system for photographic apparatus  
An exposure control system is provided for a photographic apparatus in order to selectively actuate drive means including a tractive electro-magnetic means together with other instrumentality...
3996483 Multi-state semiconductor tachometer circuit  
A tachometer circuit in accordance with the invention has two or more output states dependent upon the frequency of an applied signal. The tachometer circuit is of the type comprising at least one...
3987311 Shift register utilizing amorphous semiconductor threshold switches  
A shift register that utilizes a plurality of amorphous semiconductor threshold switches. The shift register is driven by a two phase clock with odd-numbered threshold switches being supplied a...
3950991 Apparatus for measuring an absolute temperature or a temperature differential with regenerative switching sensors  
An apparatus for measuring an absolute temperature or a temperature differential. The apparatus uses two temperature sensitive switching devices exhibiting regenerative switching action at a power...
3949233 Hand held bar code reader with constant linear amplifier output  
A linear direct current amplifier with automatic gain control system for regulating the peak-to-peak amplitude of the signal output that is acquired by scanning a coded label with a hand-held...
3925709 Overcurrent protection circuit for AC systems  
An overcurrent protection circuit for AC systems is provided including a means for developing a full wave DC sensing voltage whose peak magnitude is proportional to the load current of the system...
3896424 Sensing apparatus including latching means  
A sensing apparatus is provided which includes a latching means for providing a steady electrical signal from a sensor device to a current indicating means in the sensing apparatus. The latching...
3846697 DIGITAL PICKUP  
Disclosed is a digital pickup for counting gear teeth and the like down to zero speed. A pair of magneto-resistors mounted on a permanent magnet sense the gear teeth. The magneto-resistors are...
3833824 RADIATION HARDENED FLIP-FLOP  
Two inductors are inserted in series with the controlling transistors' pa to ground, and diodes shunt the inductors. Further diodes are back connected between the base circuits of the controlling...
3824464 PULSE DETECTION SYSTEMS  
Pulse detection circuitry for accurately measuring the time for transmission of a train of acoustical energy pulses between a transmitter and receiver. One of the pulses has significantly greater...
3816766 INTEGRATED CIRCUIT WITH HALL CELL  
Described is an integrated circuit comprised of a hall cell, a differential amplifier and a current source; that operates as a sensitive magnetic-field-to-voltage transducer being essentially...

Matches 1 - 50 out of 189 1 2 3 4 >