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| Number | Title | Issue Date |
| 6233536 | Remote lifecycle monitoring of electronic boards/software routines A remote inventory system employs unique serial numbers `burned` into each board/software routine desired to be tracked. These boards/routines find their way into machines at various remote sites each connected to a base by a remote link. A monitor progra... | 05/15/2001 |
| 6231512 | Method and apparatus for parametric harmonic imaging Ultrasound imaging of biological tissue using multiple harmonic response parameters is performed by transmitting a pulse centered at fundamental frequency .function.0 and filtering the returned beamformed signal with a bandpass filter centered ... | 05/15/2001 |
| 6218923 | Magnet having shielding A magnet, such as a closed, superconductive, magnetic-resonance-imaging (MRI) magnet, includes a main coil and includes a shielding coil positioned radially outward from the main coil. A magnetizable member is positioned radially outward from the main coi... | 04/17/2001 |
| 6215383 | Magnet with shielding A magnet, such as a closed, superconductive, magnetic-resonance-imaging (MRI) magnet includes a main coil, a magnetizable article, and a shielding coil positioned radially outward from the main coil and magnetizable article. Two magnetizable members are p... | 04/10/2001 |
| 6211674 | Method and system for providing a maximum intensity projection of a non-planar image An imaging method and system generates images of non-planar portions of a three dimensional data point array wherein the non-planar portion corresponds to a non-planar object. The method includes selecting at least two different intermediate imaging plane... | 04/03/2001 |
| 6210332 | Method and apparatus for flow imaging using coded excitation In performing flow imaging using coded excitation and wall filtering, a coded sequence of broadband pulses (centered at a fundamental frequency) is transmitted multiple times to a particular transmit focal position, each coded sequence constituting one fi... | 04/03/2001 |
| 6201462 | Open superconductive magnet having a cryocooler coldhead An open magnet has vertically aligned first and second assemblies each with at least one superconductive main coil. At least one support member is vertically aligned and attached to, the first and second assemblies. At least one cryocooler coldhead is ali... | 03/13/2001 |
| 6199664 | Spring motor for generating constant torque A spring motor for driving an electric power generator with constant power includes a crank-up spool, a take-up spool, and a relatively wide, flat tape spring which winds in a relaxed condition on the take-up spool. In one form, the spring has a width whi... | 03/13/2001 |
| 6198371 | Open magnet with floor mount A vertically-aligned open magnet includes first and second (i.e., top and bottom) assemblies each having a longitudinally-extending and vertically-aligned axis, a superconductive main coil, and a vacuum enclosure enclosing the main coil. At least one supp... | 03/06/2001 |
| 6191379 | Heat treatment for weld beads Two parts are welded together at a weld spot in a groove. A spot adjacent the weld spot is heated simultaneously and independently of the welding so that the heating and welding form a heat-treated weld bead along the groove. Preheat treatment, postheat t... | 02/20/2001 |
| 6191752 | HF antennas for wideband signals High frequency (HF) antennas for wideband signals are used in the tracking of railcars. These are rugged antennas especially adapted to the hostile environment of a railcar. One antenna is in the form of a magnetic loop. Another generates an electric fiel... | 02/20/2001 |
| 6186949 | Method and apparatus for three-dimensional flow imaging using coded excitation In performing three-dimensional flow imaging using coded excitation and wall filtering, a coded sequence of broadband pulses (centered at a fundamental frequency) is transmitted multiple times to a particular transmit focal position. On receive, the recei... | 02/13/2001 |
| 6184672 | Current sensor assembly with electrostatic shield A current sensor assembly includes a sensor coil, an electrostatic shield coil, a core, a housing, and a magnetic shield. The sensing coil, electrostatic shield coil, core, housing, and magnetic shield can be of toroidal symmetry and arranged coaxially ab... | 02/06/2001 |
| 6181228 | Superconductive magnet including a cryocooler coldhead A magnet, such as an open or closed magnet, has a first assembly with at least one superconductive main coil and with a first vacuum enclosure enclosing the main coil(s). A first cryocooler coldhead has a rigid first housing and is generally vertically al... | 01/30/2001 |
| 6172588 | Apparatus and method for a superconductive magnet with pole piece A magnet, such as an open magnetic-resonance-imaging (MRI) magnet) has a first assembly including a superconductive main coil and a magnetizable pole piece which, during magnet operation, has a temperature equal to generally the temperature of the main co... | 01/09/2001 |
| 6169489 | Motor winding contamination detector and detection A method and apparatus for detecting motor contamination utilizes zero-sequence currents in a sensing coil to detect contamination. The detector includes a current transformer comprised of a magnetic core and a sensing coil wound about the core. A process... | 01/02/2001 |
| 6158257 | Horizontal axis clothes washing machine with balance rings A horizontal axis clothes washing machine. A rotatable clothes basket has a generally longitudinally extending and generally horizontally oriented axis of rotation and has two longitudinally spaced-apart ends. The clothes basket is rotatably attached to a... | 12/12/2000 |
| 6157279 | Open magnet having shielding An open magnet useful in magnetic resonance imaging (MRI) applications. The magnet has two spaced-apart assemblies. Each assembly has a shielding coil located longitudinally outward from a main coil, a magnetizable member not carrying an electric current ... | 12/05/2000 |
| 6155980 | Ultrasonic imaging system with beamforming using unipolar or bipolar coded excitation Coded excitation for medical ultrasound imaging is implemented by transmitting code or element symbols in the encoded base sequence on different firings. The encoded base sequence is formed by convolving a base sequence with an oversampled code sequence. ... | 12/05/2000 |
| 6155978 | Three-dimensional imaging by projecting morphologically filtered pixel data In three-dimensional imaging of ultrasound data, speckle artifact data are reduced before the acquired data from a volume of interest are projected onto an image plane. A master controller performs an algorithm that iteratively morphologically filters the... | 12/05/2000 |
| 6157276 | MRI magnet assembly with non-conductive inner wall An MR magnet assembly includes a cylindrical vessel for housing a superconducting magnet and having a vacuum between its inner and outer walls. The vessel defines a magnet bore for receiving a patient to be imaged. A gradient coil assembly is mounted in t... | 12/05/2000 |
| 6154155 | General frame-based compression method A method of coding and compressing telemetry data makes use of the fact that the telemetry frames are typically highly correlated at a distance, δ, corresponding to commutation or data periodicities. The existence of such periodicity is used to render a ... | 11/28/2000 |
| 6154518 | Three dimensional locally adaptive warping for volumetric registration of images Locally-adaptive, sub-voxel registration of two volumetric data sets is performed by generating match points and then, using the match points, generating a locally-adaptive image-to-warp transformation. Generation of the match points is accelerated by gen... | 11/28/2000 |
| 6151353 | Pre-acquisition frequency offset removal in a GPS receiver A direct sequence spread spectrum receiver samples an incoming signal and stores the sample in memory. Prior to sampling and storage, the incoming signal is translated to an IF signal. Also prior to storage, the IF signal is corrected for a frequency offs... | 11/21/2000 |
| 6148494 | Floating fastener tolerance method A tolerancing method includes modeling positions and sizes of apertures in an assembly of parts. The parts are best-fit together. Aperture position in the parts is statistically varied. The best-fitting and statistical variations of the aperture positions... | 11/21/2000 |
| 6146328 | Method and apparatus for ultrasonic beamforming using golay-coded excitation A method and apparatus for improving the SNR in medical ultrasound imaging utilize Golay-coded excitation of the transducer array. A Golay pair is a pair of binary (+1,-1) sequences with the property that the sum of the autocorrelations of the two sequenc... | 11/14/2000 |
| 6144900 | Automatic serialization of an array of wireless nodes based on coupled oscillator model A linking process allows a head-end unit (HEU) of a railroad train to determine the sequence of cars in the train using wireless links between nodes on the cars, and requires no physical connection between the nodes or cars. Each car in the train is equip... | 11/07/2000 |
| 6140730 | High efficiency electric generator for mechanically powered electronic equipment A generator for producing electricity at high efficiency from mechanical energy includes a housing, a shaft mounted in the housing, an electrical coil positioned about the shaft and an annular, anisotropic magnet positioned about the shaft adjacent the co... | 10/31/2000 |
| 6139278 | Poly-component blade for a steam turbine A steam turbine blade, such as those used in an electric power generation steam turbine, has an airfoil portion. The airfoil portion includes a metallic section consisting essentially of metal and at least one (lightweight) panel section not consisting es... | 10/31/2000 |
| 6139019 | Seal assembly and rotary machine containing such seal A seal assembly and a rotary machine, such as a steam turbine, containing such seal. A stator circumferentially surrounds a row of rotor blades. The stator includes an upstream tooth-seal region, a downstream brush-seal region, and an intervening fluid ex... | 10/31/2000 |
| 6141578 | Method for calculating wave velocities in blood vessels An MRI system produces a series of image frames of a blood vessel using a cardiac gated, M-mode Fourier-velocity-encoding pulse sequence. The pulse-wave velocity of a velocity wave traversing the field of view of the image frames is determined by cross co... | 10/31/2000 |
| 6135963 | Imaging system with transmit apodization using pulse width variation A coherent imaging system having a phased array of transmit elements provides for transmit apodization (or weighting) by controlling pulse width of the transmit pulses on every channel. Conventional transmit apodization requires a channel-by-channel volta... | 10/24/2000 |
| 6135400 | Optical alignment fixture An optical alignment fixture includes a carriage pivotally joined to a frame for supporting an optical element. A worm wheel is joined to the carriage, and a driveshaft is mounted to the frame. A worm at one end of the driveshaft is engaged with the worm ... | 10/24/2000 |
| 6126741 | Polycrystalline carbon conversion A polycrystalline carbon body is converted to a different crystallography by directing an infrared laser beam at a crystal boundary interface. By using a beam having a 5.3 micron wavelength so as to fall within a 5-9 micron range of normal spectral transm... | 10/03/2000 |
| 6125168 | X-ray tube rotor and stator assembly An X-ray tube assembly having bearings rotatably connecting a rotor shaft and a stator. A pair of circumferential protrusions each radially extend from the shaft and are spaced apart a first radial distance from the stator. In a first example, the protrus... | 09/26/2000 |
| 6121788 | Method and fixture for evaluating stator core quality in production A fixture to evaluate stator production quality is placed about a stator core so as to introduce a test winding about the stator without need for hand winding. The fixture includes an inner annulus and an outer annulus each with axial conductors thereon, ... | 09/19/2000 |
| 6118808 | GPS receiver with efficient signal acquisition A direct sequence spread spectrum receiver samples an incoming signal and translates the signal to an IF signal. The IF signal is sampled and stored in memory. In one embodiment, the memory consists of two memory banks which alternately receive sample seg... | 09/12/2000 |
| 6119175 | On-chip communication circuit and protocol for microcontroller-based ASICs A communications unit configured to be implemented in an ASIC environment utilizes only a small amount of chip surface area and requires a minimum number of pins. The unit operates asynchronously with respect to the ASIC internal clock so that communicati... | 09/12/2000 |
| 6115485 | Introducing reduced data set information into a primary image data set Secondary data set information is incorporated into a primary data set (such as a digital image) retaining a desired dynamic range and retaining the original primary set data quality. The secondary data set information is `smuggled` into the least signifi... | 09/05/2000 |
| 6113545 | Ultrasonic beamforming with improved signal-to-noise ratio using orthogonal complementary sets Signal-to-noise ratio in medical ultrasound imaging is improved by using Golay-encoded excitation of a transducer array. Two orthogonal Golay pairs of sequences are transmitted to respective transmit focal zones. Start of transmission of the Golay pair to... | 09/05/2000 |
