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6861893 |
Circuit arrangement for a current-controlled resistor having an enlarged linear range
The invention relates to a circuit arrangement for a current-controlled resistor having an enlarged linear range, using an arrangement of non-linear bipolar load elements wherein the resistance is...
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6512409 |
Signal switching circuit with reduced number of diodes used
A signal switching circuit has first to fourth diode pairs each comprising two series-connected diodes disposed respectively between a first input terminal and a first output terminal, between a...
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5990731 |
Input/output protection circuit
Input/output circuitry for electrically protecting an internal element includes an input/output terminal connected to the internal element, a pair of first and second power terminals applied with a...
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5764097 |
Automatically biased voltage level converter
A voltage level converter having: an input bias terminal; connect to first, second and third voltage sources; first and second complementary output terminals; and an input control terminal wherein,...
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5726598 |
Semiconductor device having voltage sensing element
A semiconductor device having a voltage sensing element is disclosed which allows reduction of power consumption in comparison with a conventional device and enables to obtain a sufficient output...
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5717357 |
Output circuit for selectively outputting a signal at one of two voltage levels
An output circuit is provided for obtaining an output signal at one of two voltages regardless of the relative difference between the voltage levels. The output circuit includes a first switching...
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5680073 |
Controlled semiconductor capacitors
A controlled capacitor system, which includes a capacitor element (C1) and a forward-biased diode element (D2) connected in series with the capacitor element (C1). The system is such that the diode...
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5294843 |
Freewheeling diode circuit
A freewheeling diode device (10) for a commutation branch includes a first diode (12) with a soft recovery behavior and a second diode (14) with a snappy recovery behavior. The second diode (14) is...
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5270579 |
Circuit arrangement for generating an inverse voltage for switching diodes
A circuit for generating a cut-off voltage for the switching diodes in a high frequency filter by rectifying the output signal of an oscillator includes a first diode which has a low threshold...
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5218313 |
Frequency synthesizer for implementing generator of highly pure signals and circuit devices, such as VCO, PLL and SG used therein
To output desired high purity signals, a frequency synthesizer was made to synthesize reference signals from a first and second signal generators in the same frequency band as a desired frequency...
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4956568 |
Monolithic sampler
A Monolithic Sampler is disclosed. The present invention overcomes the problem of inadequately low sampling rates that results from circuit designs or component limitations that constrain the...
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4926126 |
Probehead of magnetic resonance apparatus
A probehead of an MR apparatus according to this invention includes transmitting and receiving coil elements for transmitting an RF field and receiving an MR signal based on an MR phenomenon...
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4801817 |
Apparatus and method for storing video images
An economical method for converting video images into binary form and then storing the binary representations onto disks designed for binary data. A single image will fit onto a single track of the...
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4760363 |
High frequency signal switching system
A T-network with a capacitor in the shunt branch and similarly poled diodes in the series branches provides an electronic switch for the IF signals in a VHF receiver exhibiting 58 dB of attenuation...
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4754158 |
Dual threshold sensitive transistor turn-off circuit
A DC coupled transistor turn-off circuit (12) responsive to a first DC voltage level for reverse driving the base of an output transistor (Q4), and responsive to a second DC voltage level for...
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4695747 |
Apparatus increasing diode switching speeds
An improved current pump for use in a Type II phase-locked loop including diodes employed as on-off switches for completing paths for a source current. Apparatus is disclosed for increasing the...
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4647795 |
Travelling wave sampler
A travelling wave sampler has an input terminal for receiving an input signal to be sampled. A first diode has its anode connected to the input terminal, whereas a second diode has its cathode...
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4562361 |
Power switching transistor drive circuit
A power switching transistor drive circuit including a preamplifier (PAP), a base circuit (BSC) for driving a power switching transistor (QL), and a pulse transformer (PT) for electromagnetically...
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4363033 |
Video switch circuit
A circuit for selecting one of a number of video signals to be processed by a television receiver. The circuit comprises diode means having inputs suitable for coupling to alternate sources of...
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4203073 |
Radio receiver blanker gate
A balanced, doubly tuned gate couples between the mixer and intermediate frequency (IF) stages of a conventional radio receiver. The network is comprised of a pair of matched transformers...
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4151425 |
Voltage sequencing circuit for sequencing voltages to an electrical device
The present invention provides means for sequencing various supply voltages to electronic circuits and devices to thereby protect those circuits and devices from exposure to deleterious voltages. A...
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4058770 |
Solid state subscriber selection switches for wired broadcasting systems
A switch is disclosed which comprises a pair of diodes connected in series with opposed polarities, and a solid state device for applying potentials to the connection between the diodes to render...
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4016559 |
Digital-to-analog converter having transient suppressor system
A digital-to-analog converter having means to suppress the transient signals present at the output of the converter in response to a clock pulse synchronized with the transient signal. The clock...
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3974347 |
Switch assembly having rotatable, pivoted or slidable actuator and diode structure mounted between actuator contacts
A manually actuated switch includes a pair of terminals forming switch poles and a knob which is manually actuated to complete or interrupt an electrical circuit across the poles. A pair of spaced...
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3864527 |
INTERCOMMUNICATION SYSTEM USING CONTROLLED GATES
A three port controlled gate and an intercommunication system incorporating the gate are disclosed. The gate is so formed that the control signals for opening the gate can be applied to the same...
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3810158 |
DECODING SYSTEM
A decoding system comprising a network including a plurality of signal supply terminals respectively corresponding to individual digits in the form of binary code, a signal source generating...
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3757144 |
SWITCHING CIRCUIT TRANSISTOR WITH A DELAYED TURN ON DIODE COUPLED TO ITS EMITTER AND BASE ELECTRODES
A switching circuit has a first transistor and a transformer which apply a switching signal to a second transistor. A long turn on time diode is connected to the second transistor base and emitter...
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3720888 |
DIODE SWITCHING ARRANGEMENTS COMPRISING THREE-POSITION SWITCHING MEANS
A switching device for HF energy which includes, at a distance of λ/4 from the branching point of one path or circuit into two transmission paths, connections to ground by a switching diode. These ...
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3710041 |
ELEMENT WITH TURN-ON DELAY AND A FAST RECOVERY FOR A HIGH SPEED INTEGRATED CIRCUIT
A fast recovery delay element of an integrated circuit comprising a series connection of a "majority carrier diode" and at least one PN junction diode of conventional construction, said element...
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3702898 |
ELECTRONIC VIDEO EDITOR
An electronic video editor for switching any one of a plurality of video input signals to a common output channel. The switching operation is manually initiated and electronically controlled so...
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3597706 |
STRIP LINE SWITCH
A switch for high frequency use is an integrated strip line structure wherein diodes are in shunt between the source and load and can be selectively biased to produce switching with a minimum of...
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3593178 |
INPUT SWITCHING CIRCUIT
A single signal current is selected from a plurality of DC signal currents of varied levels and is transmitted to means for performing measurement, operation and signal conversion.
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3566156 |
GATE INITIATED PULSE SHAPING CIRCUIT
This gated initiated pulse shaping circuit provides a high speed, low power, constant minimum time delay circuit that provides a spike-shaped output pulse corresponding to the leading edge of an...
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3558796 |
TOUCH PERCUSSION FOR ELECTRONIC ORGAN WITH BACK-TO-BACK DIODE GATES
An electronic organ system in which tone signals deriving from percussive voice tabs are passed through a slow percussive linear diode gate to an amplifier and loudspeaker. The percussive voices...
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3533019 |
SYSTEM FOR SWITCHING HIGH-FREQUENCY SIGNAL SOURCES
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3516319 |
SIMULATED BRUSHED CYMBAL TONE GENERATING SYSTEM FOR ELECTRONIC ORGANS
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3503013 |
BIASING ARRANGEMENT FOR PULSE CODE MODULATION SAMPLING CIRCUITS
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3503014 |
MULTIPLE THROW MICROWAVE SWITCH
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3493668 |
ELECTRONIC ORGAN HAVING UPBEAT PERCUSSION GATE
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3492502 |
BI-DIRECTIONAL CAPACITIVE LOAD DRIVER
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3475700 |
MONOLITHIC MICROWAVE DUPLEXER SWITCH
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3474358 |
MULTIPLE-PATH ELECTRONIC COMPONENT
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3454791 |
RADIO FREQUENCY SWITCH CIRCUIT WITH HIGH DECIBEL ISOLATION
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3446987 |
VARIABLE RESISTANCE CIRCUIT
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3405354 |
Apparatus for limiting phase-angle response range, particularly in eddy current testing apparatus
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3391240 |
Chiff system for electronic organs
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3334249 |
Diode-capacitor gate having additional shunting capacitor reducing recovery time
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3309695 |
Electronic diode matrix decoder circuits
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3307174 |
Pulse generating circuits
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3305791 |
Fault detecting and switching circuit for providing reliability in amplifier circuits
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