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| Patent # | Description |
|---|---|
| US-5,574,400 |
Feedforward amplifier with reduced distortion in wide band A first pilot signal is superimposed onto an input signal thereto to distribute the signal as a first signal and a second signal to two destinations. The first... |
| US-5,574,399 |
Coherent PSK detector not requiring carrier recovery A coherent phase-shift keying (PSK) detector in a receiver generates an unmodulated carrier signal, without attempting to synchronize the unmodulated carrier... |
| US-5,574,398 |
Active bandpass filter An active bandpass filter offers freely settable values of quality factor Q and peak gain. The active bandpass filter has a first transistor, the base of which... |
| US-5,574,397 |
Signal output circuit operating stably and arrangement of power supply
interconnection line therefor in... A semiconductor integrated circuit device includes a pad receiving a power supply potential and a pad receiving a ground potential both formed on a chip, and a... |
| US-5,574,396 |
Micro-power vortex isolator circuit An analog isolation circuit for providing electrical isolation between interrelated electrical circuitry contained within a vortex flowmeter. The circuit... |
| US-5,574,395 |
Semiconductor circuit A semiconductor circuit which has such a configuration that a power supply terminal connected to an overvoltage protection circuit is formed independently from a... |
| US-5,574,393 |
Apparatus and method for immediately stopping clocks A bypass means is provided for bypassing a system clock disabling signal around a conventional system clock disabling signal processing path to reduce the amount... |
| US-5,574,392 |
Asymmetrical ramp generator system An asymmetrical ramp generator system for a pulse width modulator includes a complementary clock circuit; a first symmetrical dual ramp generator, responsive to... |
| US-5,574,391 |
ECL integrated circuit allowing fast operation In an ECL circuit, when a potential of an input signal A changes from "L" to "H", an output signal D correspondingly changes from "H" to "L", and, at this time,... |
| US-5,574,390 |
Method and apparatus for enhanced booting and DC conditions A voltage elevation circuit supplying additional voltage for gate switching having an elevated power supply connected to a first node of a capacitor using a... |
| US-5,574,389 |
CMOS 3.3 volt output buffer with 5 volt protection As VLSI chip design migrates from 5 volt designs to lower voltage designs, such as 3.3 volts, interfacing components with different power supplies is an... |
| US-5,574,388 |
Emulation system having a scalable multi-level multi-stage programmable
interconnect network A scalable multi-level multi-stage network topology is employed to interconnect reconfigurable logic elements within the FPGA, inter-FPGA, interlogic boards, and... |
| US-5,574,387 |
Radial basis function neural network autoassociator and method for
induction motor monitoring A method for detecting a departure from normal operation of an electric motor comprises obtaining a set of normal current measurements for a motor being... |
| US-5,574,386 |
Apparatus and method for creating detachable solder connections A method is provided for creating solder connections between two surfaces which connections are relatively weak and thus can be readily fractured for separating... |
| US-5,574,385 |
Testable solid state switch and related method A switch module for connection between a power source and a controlled load, and a method for its operation, the switch module being testable without regard to... |
| US-5,574,384 |
Combined board construction for burn-in and burn-in equipment for use
with combined board An apparatus for burn-in of semiconductor devices has board assemblies including a burn-in board and a driver board. The burn-in board has sockets on a first... |
| US-5,574,383 |
IC tester and measuring method An IC measuring and testing device and measuring and testing method comprising a measurement handler socket provided with mold-receiving base having guiding... |
| US-5,574,382 |
Inspection electrode unit for printed wiring board An inspection electrode unit for printed wiring board, which includes an insulating substrate; an inspection electrode element set up on one side of the... |
| US-5,574,381 |
Sealed mechanical configuration for electronic calipers for reliable
operation in contaminated environments An electronic caliper configuration making such calipers more reliable in the presence of liquid and particulate contaminants. Included in the caliper... |
| US-5,574,380 |
Current measurement circuit comprising a mutually coupled transformer
and an integration circuit A current measurement circuit comprising a mutual inductance transformer 3, an integration circuit 2, and a dither circuit 1 which adds a square wave to the... |
| US-5,574,379 |
System for measuring electromagnetic properties A system for measuring the electromagnetic properties of a member without physically contacting the member. The system includes an electromagnetic energy... |
| US-5,574,378 |
Insulation monitoring system for insulated high voltage apparatus A non-ferrous current sensor is used to continuously measure the charging current magnitude in step-graded foil and paper insulation systems and capacitive... |
| US-5,574,377 |
Device for the detection and localization of organic solvent leakages
and fabrication process A device for detection of the presence of organic solvents, and a process for the fabrication of the device. This device is particularly useful as a device for... |
| US-5,574,376 |
A.C. field measurement system for detecting and sizing defects in a
conductor via fixed orthogonal coils An a.c. field measurement testing system for detecting and sizing defects in a conductor includes a probe head having field coils located on a yoke so as to... |
| US-5,574,375 |
Dual pyroelectric sensor A dual-type pyroelectric elements. The first pyroelectric element is constituted by a larger electrode on a first surface and a smaller electrode on a second... |
| US-5,574,374 |
Method and apparatus for interrogating a borehole and surrounding
formation utilizing digitally controlled... The present invention is directed to a measurement-while-drilling logging tool which includes a minimum number of analog electrical and electronic components,... |
| US-5,574,373 |
Local gradient coil arrangement for nuclear magnetic resonance
tomography apparatus A local gradient coil arrangement having an essentially hollow-cylindrical geometry can be separated at at least one side along a separating line proceeding in... |
| US-5,574,372 |
Diagnostic magnetic resonance apparatus having a radio frequency shield
between the radio frequency antenna and... In a diagnostic magnetic resonance apparatus having an examination space, a radio-frequency antenna and a gradient coil system, the radio-frequency antenna is... |
| US-5,574,371 |
Method and apparatus for measuring mud resistivity in a wellbore
including a probe having a bottom electrode... A logging apparatus is adapted to be disposed in a mud filled wellbore, and a measurement probe is connected to a bottom of a tool string of the logging... |
| US-5,574,370 |
Nuclear resonance tomography with a toroid cavity detector A toroid cavity detection system for determining the spectral properties and distance from a fixed point for a sample using Nuclear Magnetic Resonance. The... |
| US-5,574,369 |
Detection and communications device employing stochastic resonance A sensitive detector and detector system with multi-state element or elements employing the phenomenon of stochastic resonance to enhance signal-to-noise ratio... |
| US-5,574,368 |
Apparatus and method for inducing eddy currents in a structure for
magneto-optic testing In order to control the direction of a magnetic field induced by a current sheet in a sheet conductor, relative to anomalies in a test sample, the current sheet... |
| US-5,574,367 |
Polar coordinates sensor array with rotating magnetic field driven
pickup elements A polar coordinates sensing array, having a plurality of pick-up poles arranged in a flux balanced hexagonal configuration within a cylindrical outer pole, array... |
| US-5,574,366 |
Proximity switch having a variable sensing resistor for maintaining a
constant total resistance A proximity switch for determining the approach of a metal object includes an oscillating circuit which has a coil and a capacitor, and which produces a... |
| US-5,574,365 |
Travel sensor having a magnetic sensor attached to a truncated pyramid
and a movable magnet A movement distance detector which is simple in structure, low-cost and highly accurate. The detector includes a magnet movable along a path, a magnetic body... |
| US-5,574,364 |
Position detector including a reference position wherein the sensor is
saturating the MR sensor for preventing... A position detector which provides improved reference position detecting precision by stabilizing the output signal from magnetoelectric transducers in a... |
| US-5,574,363 |
Stability method and apparatus for nondestructive measure of magnetic
saturation flux density in magnetic materials In order to measure the magnetic saturation flux density of a sample material, a first and a second sample holder are symmetrically positioned on the same side... |
| US-5,574,362 |
Electrical energy measuring and metering device A metering device includes a standard AC energy meter, and a conversion circuit. The conversion circuit measures the voltages and currents of an installation... |
| US-5,574,361 |
Switched reluctance angular velocity sensor A bearing assembly for a vehicle including a fixed element, a rotating element rotating relative to the fixed element about an axis, and an annular sensor... |
| US-5,574,360 |
Simultaneous signal detector A simultaneous signal detector includes components for scaling, by the total signal strength, the difference signal resulting when signals having different... |
| US-5,574,359 |
Removable tester contact A tester contact for providing a reliable test interface between electrical test equipment and a test item. The tester contact consists of two contact beams... |
| US-5,574,358 |
Shutdown circuit and battery pack using same A current limited linear regulator including a pass transistor 56 is provided with a shutdown circuit 64 comprised of a shutdown transistor 90, base resistor 92,... |
| US-5,574,357 |
Switching power supply A switching power supply with a high power-conversion-efficiency is obtained by further reducing a loss occurring in a transistor rectifying element. A driving... |
| US-5,574,356 |
Active neutral current compensator An active power conditioner for mitigating zero-sequence currents in electrical distribution by items wherein a multi-phase, neutral-forming structure employs a... |
| US-5,574,355 |
Method and apparatus for detection and control of thermal runaway in a
battery under charge A thermal runaway detection apparatus is provided for use during charging of a battery. The thermal runaway detection apparatus includes circuitry for... |
| US-5,574,354 |
Storage battery charging station for electric vehicles A large number of vehicular batteries are charged while riding on gondolas, which go upon down and around in a space-saving tall tower. Charging electricity is... |
| US-5,574,353 |
Electrochemical charge storage device having constant voltage discharge An electrochemical charge storage device (20) having a voltage discharge profile which is constant for a substantial period of the discharge cycle, which then... |
| US-5,574,352 |
Frequency control method for inverter and apparatus therefor A trip-resistant frequency control inverter which prevents an overcurrent and overvoltage by frequency control of a motor. Such arrangement provides for... |
| US-5,574,351 |
Method and apparatus for control of stepper motors A plurality of acceleration tables consisting of a sequence of step times defining intervals between steps and thus an acceleration profile to be executed by a... |
| US-5,574,350 |
Motor-operated adjusting device for machines A motor-operated adjusting device is provided for adjusting machine axles. The device includes an addressable unit, an operating unit for executing control... |
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