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Patent # Description
US-5,410,252 Magnetic survey technique for determining subsurface environmental contamination
A technique for determining the extent of underground contamination within a test area involves recording of magnetic measurements at each of a plurality of test...
US-5,410,251 High-frequency system for nuclear spin tomography with shield for delimitation of an electric field
A high-frequency apparatus for nuclear spin tomography includes a high-frequency antenna arrangement in the region of a biological body to be imaged. Such an...
US-5,410,250 Magnetic resonance imaging color composites
The invention relates to an apparatus and method for producing a single color coded composite image from a plurality of multiparameter magnetic resonance image...
US-5,410,249 Method and apparatus for magnetic resonance imaging
In a magnetic resonance imaging method multiple refocusing RF-pulses (22-26) are applied and spin-echo signals (62-66) obtained following an excitation RF-pulse...
US-5,410,248 Method for the simultaneous detection of velocity and acceleration distribution in moving fluids
A motion imaging method uses magnetic resonance to detect velocity, and an acceleration distribution within moving materials in a subject. Velocity encoding is...
US-5,410,247 Circuit device having a test function for checking circuit operation
A circuit device including a DC characteristic test circuit is arranged to have a reset signal supplied via a reset signal input terminal for resetting a testee...
US-5,410,246 Method for detection of a marked element in proximity to a sensor
A method for detecting a marked element on an eddy wheel in proximity to a sensor is described. The method includes the steps of accumulating sensor output...
US-5,410,245 Method and apparatus for calibrating electronic scales for the horizontal axis
A method and apparatus of calibrating electronic scales for the horizontal axis of an oscilloscope is provided. For each of two electronic scales or cursors,...
US-5,410,244 Air core gauge testing method and apparatus utilizing magnetic coupling between gauge coils
A method for testing gauges includes applying a rotation signal to the gauge. An AC input signal is superimposed on a first coil of the gauge. A second coil of...
US-5,410,243 Three-phase collected type optical current transformer
A three-phase collected type optical current transformer having a common hermetically sealed container miniaturized in its radial direction. The common...
US-5,410,242 Capacitor and resistor connection in low voltage current source for splitting poles
One embodiment of this invention provides an improved version of an existing current source circuit. A reduction in die size of the current source is achieved by...
US-5,410,241 Circuit to reduce dropout voltage in a low dropout voltage regulator using a dynamically controlled sat catcher
An integrated circuit voltage regulator employs a PNP pass transistor to produce a low dropout voltage. Saturation in the pass transistor produces excessive...
US-5,410,240 Method and device for open-loop control of single-phase or multiphase A.C. power controllers
In the open-loop control of A.C. power controllers through the phase-angle control of semiconductor valves (4), the chronological sequence of the firing signals...
US-5,410,239 Battery charger with capacity monitor
An automatic shut-off battery charging system which employs a timing control circuit (TC101) to initiate intermittent monitoring of the equivalent internal...
US-5,410,238 Rapid battery charger with slow charge mode at a low temperature
To enable recharging of a battery under a low temperature circumstance, a rapid battery charger is provided with a rapid charge mode and a slow charge mode which...
US-5,410,237 Battery charging unit
A battery charging unit is disclosed for use in connection with a rechargeable, battery-powered device, such as a flashlight, of the type having a contact-foot...
US-5,410,236 Device to regulate the speed of an electric motor and its method of operation
Digital device to regulate the speed of an electric motor having a commutating element mounted in series with the motor at the terminals of an A.C. distribution...
US-5,410,235 Method and apparatus for sensing the rotor position of a switched reluctance motor
Apparatus and method for detecting rotor (12) position in a switched reluctance motor (18) having multiple stator phases (A-A', B-B', and C-C'). A multiplexer...
US-5,410,234 Motor drive control apparatus
A motor drive control apparatus having an electrical power amplifier for supplying an electrical power to a motor, and a current control loop and speed control...
US-5,410,233 Magneto-repulsion punching with dynamic damping
Dimpling of a workpiece by rebounding of a magnetic repulsion punch mechanism, when operated at high punching rates, is avoided by application of a damping pulse...
US-5,410,232 Spherical motor and method
A spherical motor (10) provides smooth isotropic motion. The spherical motor (10) has a spherical stator (12) surrounding a spherical rotor (18). A motor shaft...
US-5,410,231 Auxiliary power supply circuit for a series motor
A compound series motor includes a series field winding, armature, and auxiliary power supply connected in parallel with the series winding. The drop in armature...
US-5,410,230 Variable speed HVAC without controller and responsive to a conventional thermostat
A system for conditioning air in a space by heating or cooling the air to change its temperature. A thermostat located within the space generates a two state...
US-5,410,229 Motor speed control circuit with electronic clutch
The pulse width modulated DC motor speed control circuit indirectly senses motor current using sense MOSFETs and a peak detector circuit with storage capacitor...
US-5,410,228 Method and apparatus for suppressing torsional vibration in an electric motor speed control system
Herein disclosed are a method and an apparatus for suppressing a torsional vibration in an electric motor speed control system including a mechanism for...
US-5,410,227 Vehicle window opening and closing method and apparatus for detecting an obstacle utilizing sound wave
This invention aims to prevent an obstacle from being trapped between a vehicle window and a window frame. A supersonic wave f is emitted into a vehicle window...
US-5,410,226 Power window apparatus and method for controlling the same
A power window apparatus is controlled by comparing present rotational frequency of a motor with a reference value selected depending on a present position of a...
US-5,410,225 Video camera and camera system employing aperture control
In a video camera in strobe mode, when a condition for strobe light emission is ready, the aperture of an iris is reduced and the gain of an AGC amplifier is...
US-5,410,224 Tape position-dependent, standstill tape tension control system
A magnetic tape transport having a pair of reel motors for bidirectionally driving a tape between a pair of reels within a cassette housing, and a pair of...
US-5,410,223 Display device including a black level setting circuit
Known display devices include a video signal processing circuit with a black level setting circuit. This black level setting circuit measures the black level of...
US-5,410,222 Sample pulse generator for automatic kinescope bias system
Control circuitry, in an AKB sample pulse generator, enables charging of a capacitor upon initiation of a vertical retrace pulse, initiates discharge of the...
US-5,410,221 Lamp ballast with frequency modulated lamp frequency
An electronic high frequency supply, such as a lamp ballast, having a full-wave rectifier, a storage capacitor charged to a voltage greater than the peak of the...
US-5,410,220 Control circuit for drive circuit of an electronic ballast for a discharge lamp
The invention relates to an electronic ballast for a discharge lamp, comprising a drive circuit supplying high-frequency current to the lamp and including two...
US-5,410,219 Plasma display panel and a method for driving the same
A method for driving a plasma display panel comprising a plurality of first electrodes disposed in parallel with each other, a plurality of second electrodes...
US-5,410,218 Active matrix field emission display having peripheral regulation of tip current
A Field Emission Display ("FED") is disclosed having an array of display grids formed within a region of a semiconductor substrate. The array is defined by a...
US-5,410,217 Electroluminescent lamps and displays having thick film and means for electrical contacts
Improved thick film electroluminescent lamps and displays which provide a moisture barrier for the phosphor layer of an electroluminescent lamp and allows all of...
US-5,410,216 Gas discharge tube capable of lighting in different colors
A gas discharge tube that is capable of lighting in different colors. The gas discharge tube, which may contain neon and mercury vapor, and which has its inner...
US-5,410,215 Device for mounting a shadow mask in a color television tube
Disclosed is a device for mounting a shadow mask in a color television tube comprising an engaging hole for receiving a panel pin projected on the skirt of a...
US-5,410,214 Electric lamp
The electric lamp has a lamp vessel (1) having seals (4, 5) onto which respective bases (20, 21) are secured. Each base comprises a cylindrical insulator body...
US-5,410,213 Mounting strap for replacement halogen lamp
A mounting assembly for mounting a replaceable light bulb in a headlight assembly. The mounting assembly has a pair of mounting straps. Each mounting strap has a...
US-5,410,212 Soft white reflector lamp
Incandescent reflector lamps of the R and ER type having a metallic light-reflecting coating inside exhibit a pleasing soft white appearance with substantially...
US-5,410,211 Electron tube with an electron multiplier having a plurality of stages of dynodes
The electron tube according to this invention comprises an electron multiplier for multiplying incident electron flows by secondary electron emission. This...
US-5,410,210 Piezoelectric device and process for production thereof
A sheet-form piezoelectric device having improved mechanical strengths as represented by an electrode peel strength while retaining flexibility and piezoelectric...
US-5,410,209 Piezoelectric material and ultrasonic probe
A piezoelectric material with a high fracture toughness and a large electromechanical coupling coefficient is disclosed. This piezoelectric material contains a...
US-5,410,208 Ultrasound transducers with reduced sidelobes and method for manufacture thereof
A transducer has tapered piezoelectric layer sides in order to reduce the sidelobe levels. In addition, matching layers disposed on the piezoelectric layer may...
US-5,410,207 Piezoelectric actuator
A piezoelectric actuator has a zigzag-shaped actuator body, and an expansible piezoelectric element attached to the actuator body. The actuator body has zigzag...
US-5,410,206 Piezoelectric actuator for optical alignment screws
A piezoelectric actuator for rotating a shaft associated with an optical mount positioning system in which the actuator moves in first direction at a slow enough...
US-5,410,205 Ultrasonic transducer having two or more resonance frequencies
A transducer for transmitting and receiving ultrasonic energy at more than one frequency includes first and second electrostrictive layers mechanically coupled...
US-5,410,204 Ultrasonic oscillator
The present invention discloses an ultrasonic oscillator including: a plurality of resonators; and an electricity-to-mechanical energy conversion element...
US-5,410,203 Reluctance motor with yoke saturation
The invention relates to a reluctance motor having a ferromagnetic stationary member (3) and a ferromagnetic member (5) which is movable relative thereto, which...
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