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| Patent # | Description |
|---|---|
| US-5,467,025 |
Sensorless rotor position measurement in electric machines A sensorless rotor position measurement system comprises a digital processor (6) which receives signals from current and flux sensors (7, 8) of the current and... |
| US-5,467,024 |
Integrated circuit test with programmable source for both AC and DC
modes of operation An integrated device test system (10, 40) having AC and DC measurement modes of operation comprises a drive circuit (11, 41), a programmable measurement unit... |
| US-5,467,023 |
Connector inspecting apparatus having size regulating member for
retainer test fitting probes external to the... The present invention provides a connector inspecting apparatus (D1, D2, D3, D4) for inspecting a connector having a retainer (R1, R2, R3, R4) for positioning... |
| US-5,467,022 |
Dielectric detecting system A dielectric detecting system comprises: an earth electrode; a sensor electrode opposed to the earth electrode for constituting a first condenser therebetween... |
| US-5,467,021 |
Calibration method and apparatus A multistate electronic transfer standard provides electronic conditions to at least one of two ports of a vector network analyzer. One embodiment of the... |
| US-5,467,020 |
Testing fixture and method for circuit traces on a flexible substrate A mechanism is provided for testing circuit traces extending along a flexible substrate, which is fed in a longitudinal direction between an upper plate and a... |
| US-5,467,019 |
Method and apparatus for balancing the electrical output of the receiver
coils of an induction logging tool by... In an induction logger, a method for nulling the output signal from a pair of series-coupled receiver coils by altering the magnetic flux distribution within the... |
| US-5,467,018 |
Method of processing transient electromagnetic measurements in
geophysical analysis A method of geophysical analysis includes transmitting an electromagnetic signal into the earth and measuring the resulting transmission of that signal through... |
| US-5,467,017 |
Antenna arrangement for a nuclear magnetic resonance apparatus An antenna arrangement for a nuclear magnetic resonance apparatus, the apparatus having a magnet which generates a basic magnetic field between two pole plates,... |
| US-5,467,016 |
Saturation selective spectroscopic imaging In order to spatially localize NMR Spectroscopic signals that are acquired at minimum time post excitation, a saturation selective spectroscopic imaging... |
| US-5,467,015 |
Superconducting magnetometer having increased bias current tolerance and
producing digital output A superconducting magnetic sensor includes a SQUID for interlinking with an external magnetic flux, an A.C. bias circuit for driving the SQUID with an A.C. bias... |
| US-5,467,014 |
Device for measuring the thickness of a layer or coating on a ferrous
and/or non-ferrous substrate A device for measuring the thickness of a layer of coating on a metal surface is disclosed. The device includes a housing, a first magnetic probe mounted on the... |
| US-5,467,013 |
Radio frequency monitor for semiconductor process control A RF sensor for monitoring voltage, current and phase angle of a RF signal being coupled to a plasma reactor. Outputs from the sensor are used to calculate... |
| US-5,467,012 |
Power monitoring Electrical power monitoring apparatus comprises a loop and a first conductor. A current sensor coupled to the first conductor provides a current signal that is... |
| US-5,467,011 |
System for detection of the phase of an electrical signal on an
alternating circuit power line A data transmission system for power line carriers includes a transmitter which generates a stable carrier frequency at a bandwidth of less than one hertz. The... |
| US-5,467,010 |
Voltage regulator control circuit Voltage regulator control circuit relying upon differential voltage translation and filtering using switched capacitor networks. The voltage regulator control... |
| US-5,467,009 |
Voltage regulator with multiple fixed plus user-selected outputs A voltage regulator is capable of providing multiple fixed outputs plus a user-selected output by the use of a window comparator circuit that produces one of... |
| US-5,467,008 |
Electronic control device for controlling the alternator and the idling
RPM of automotive engine An automotive electronic control device includes an electronic control unit 6 for controlling an automotive alternator 2 and the ISCV (Idling Speed Control... |
| US-5,467,007 |
Charging apparatus A charging apparatus capable of charging a secondary battery so that a utilization time thereof is not shortened is disclosed. When a microcomputer 63 judges... |
| US-5,467,006 |
Energy transfer device and method A method for providing energy from a stationary energy source to an electric vehicle having the steps of: determining an energy requirement of the electric... |
| US-5,467,005 |
Battery charger which accounts for initial surge in battery voltage and
which is immune to noise during... A battery charger includes a circuit for detecting battery voltage (V1) appeared when a predetermined time (T1) has elapsed after starting a charging operation.... |
| US-5,467,004 |
Motor speed control apparatus for keeping the speed of the motor fixed
in the presence of a disturbance torque A motor control apparatus controls a motor speed according to a detected period of a frequency signal whose frequency is in proportion to the motor speed and... |
| US-5,467,003 |
Control method and control apparatus for a robot with sensor A control method and a control apparatus for a robot, in which an operation line position is detected by a sensor, and real-time tracking of the operation line... |
| US-5,467,002 |
Adjustable chair having programmable control switches An adjustable chair including a control system based around a microprocessor and operated by way of switches preferably located on each side of the seat back.... |
| US-5,467,001 |
Control method for an alternating current motor A control method for an alternating current motor, wherein after a torque command Tcmd1 is obtained, if the motor is accelerating, and the obtained torque... |
| US-5,467,000 |
Method and apparatus for current regulating in a voltage-injecting
converter The present invention provides a current regulating method and associated apparatus for a voltage-injecting converter, wherein a flux-producing current component... |
| US-5,466,999 |
Spindle motor start control process and apparatus A method for starting spin-up of a spindle motor in a hard disk drive. When power is initially applied to the spindle motor, the spindle motor is set to a first... |
| US-5,466,998 |
Electric system for an electric vehicle In an electric system for an electric vehicle, DC power of a main battery is converted into AC power by an inverter which has a power regenerative function. At... |
| US-5,466,997 |
Spin motor control system for a hard disk assembly A spin motor control system includes a BEMF commutation circuit, a startup circuit and a monitor circuit, each of which operate utilizing digital techniques. The... |
| US-5,466,996 |
Electromechanical remote-control device The remote-control device features a servomechanism that transmits the movements of a first control cable or tie rod, which is connected to handgrip or control... |
| US-5,466,995 |
Zoning circulator controller A zoning circulator for circulating fluid within a zone in a hydronic heating or cooling system includes a zoning circulator controller including a speed... |
| US-5,466,994 |
Fly-back transformer A fly-back transformer for generating a focus voltage to be applied to a cathode-ray tube, includes an iron core, a primary coil, a D.C. voltage generating... |
| US-5,466,993 |
Deflection apparatus for raster scanned CRT displays A deflection apparatus for a raster scanned cathode ray tube display, the apparatus comprising: a ramp generator having a flyback circuit including a first... |
| US-5,466,992 |
Inverter ballast circuit featuring current regulation over wide lamp
load range A ballast circuit for driving fluorescent lamps characterized by a minimum of components has a power transformer constructed to present a source impedance... |
| US-5,466,991 |
Optimized ECR plasma apparatus with varied microwave window thickness The present invention describes a technique to control the radial profile of microwave power in an ECR plasma discharge. In order to provide for a uniform plasma... |
| US-5,466,990 |
Planar Fluorescent and electroluminescent lamp having one or more
chambers A planar fluorescent and electroluminescent lamp having two pairs of electrodes. Planar electrodes on an outer surface of the lamp create a plasma arc by... |
| US-5,466,989 |
Discharge tube A discharge tube according to the present invention is constructed such that it includes a cylindrical container made of an insulation tube, a pair of discharge... |
| US-5,466,988 |
High pressure discharge lamp having improved convection regulating means A high pressure discharge lamp is disclosed. The high pressure discharge lamp includes: a discharge tube which is filled with gas; a first electrode having a... |
| US-5,466,987 |
Rigid mounting for arc discharge lamp arc tube A metal halide arc discharge lamp includes a metal halide arc tube located within a lamp envelope, a lamp stem having first and second stem leads extending... |
| US-5,466,985 |
Method for non-destructively driving a thickness shear mode
piezoelectric actuator A method for stably driving a piezoelectric actuator includes the steps of applying a pulse voltage for a maximum of 100 ms per cycle. The piezoelectric actuator... |
| US-5,466,984 |
Implosion-resistant band with stack retainer An implosion-resistant band on a screen panel of a cathode-ray tube body has a metallic band element having a plurality of corners, and a plurality of holders... |
| US-5,466,983 |
Cathode ray tube with improved resolution A cathode ray tube has a gun electrode construction which elongates horizontally a cross section of an electron beam and whose elongating strength weakens as a... |
| US-5,466,982 |
Comb toothed field emitter structure having resistive and capacitive
coupled input A field emitter structure with emitter edge comprising of individual comb elements. A resistive film is inserted between the lead-in conductor and the emitter... |
| US-5,466,981 |
Integral reflector lamp An electric lamp is provided which includes a reflector typically made of glass or metal and having a reflecting surface in which an area is formed to fit a... |
| US-5,466,980 |
Charged rotor pole micromachine motor An electrostatic micromachine motor includes a rotor having a hub and one or more rotor poles extending radially outward from the center of the hub. Near an... |
| US-5,466,979 |
Methods and apparatus to reduce wear on sliding surfaces Methods and apparatus to reduce wear on surfaces in sliding contact by inducing vibratory movement in one or more of the surfaces. The movement is substantially... |
| US-5,466,977 |
Methods for producing bearing surfaces Flywheel-based energy storage devices are provided along with methods for their use and fabrication. The devices have the capacity to store electric energy as... |
| US-5,466,976 |
Time constant detecting circuit and time constant adjusting circuit A time constant detecting circuit incorporated in an LSI detects variations of component values of resistors and capacitors in the LSI by detecting variations of... |
| US-5,466,975 |
Switched termination for bus tap-off line An arrangement for terminating a tap-off line (40) between a bus line (14) and a bi-directional signal driver (38). The arrangement includes a resistor (42)... |
| US-5,466,974 |
Electric power distribution module for an electric power generation and
distribution system This invention relates to an electric power generation and distribution system, and more particularly to an electric power distribution module for use in such... |
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