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| Number | Title | Issue Date |
| 5101366 | Method for controlling the manufacture of zirconium tubes A method for operating a computer to control the manufacture process of zirconium tubes in a pilger mill operation, the computer including an electronic memory and being coupled to the pilger mill to receive, as input, data related to the operation of the... | 03/31/1992 |
| 5082362 | Zoom lens for a variable depth range camera An apparatus for a variable depth triangulation ranging system, the ranging system including means for emitting a light beam, means for focusing an emitted light beam on an object, and light sensitive means. The present apparatus includes motorized zoom/f... | 01/21/1992 |
| 5073910 | Square wave cone beam scanning trajectory for data completeness in three-dimensional computerized tomography A configuration for three-dimensional cone beam computerized tomography imaging which allows a complete data set to be acquired in a practical manner, while providing fast data acquisition to minimize motion artifacts. An object within a field of view suc... | 12/17/1991 |
| 5068882 | Dual parallel cone beam circular scanning trajectories for reduced data incompleteness in three-dimensional computerized tomography A configuration of three-dimensional cone beam computerized tomography imaging which minimizes the incompleteness of the data set acquired, while providing fast data acquisition to minimize motion artifacts. An object within a field of view is scanned, pr... | 11/26/1991 |
| 5061062 | Focus spot size controller for a variable depth range camera A focus spot size controller for a variable depth triangulation ranging system, the ranging system including apparatus for emitting light beam to be focused onto an object, light sensitive apparatus, lens apparatus for imaging reflected light onto said li... | 10/29/1991 |
| 5059761 | Inductive depth sensing and controlling method and system for laser drilling Laser drilling and real-time sensing and control of hole depth by the provision of magnetic field jack-up coils located around or to the side of a laser beam, in a stream of ionized plasma, and the coils are connected to a depth detector and comparator to... | 10/22/1991 |
| 5060147 | String length determination on a distributed processing system A method for determining the length of data strings on a distributed processing system is disclosed. The method assigns a sequential position value to each element in the string, the position value zero being assigned to the true head element. The sequent... | 10/22/1991 |
| 5060242 | Non-destructive lossless image coder An image signal processing system DPCM encodes the signal, then Huffman and run length encodes the signal to produce variable length code words, which are then tightly packed without gaps for efficient transmission without loss of any data. The tightly pa... | 10/22/1991 |
| 5059800 | Two dimensional mosaic scintillation detector A two dimensional mosaic scintillation X-ray or Gamma ray detector has many mosaic elements. A reflecting means, e.g., an epoxy with TiO2, is disposed between the elements to reduce optical cross-talk. The elements have wide narrow ends and eit... | 10/22/1991 |
| 5058033 | Real-time system for reasoning with uncertainty The invention is directed to an automated, real-time, rule-based reasoning with uncertainty system and method for practicing same. The system has a three layer structure comprising of representation, inference and control layers. Rule firings and conclusi... | 10/15/1991 |
| 5053958 | Method to reduce image reconstruction time in limited-angle CT systems including using initial reconstruction valves for measured projection data during each iteration To achieve a large reduction in the amount of computer time in limited-angle computerized tomography, the reconstructed image is decomposed into two partial images reconstructed from available scan data and missing scan data. Because the former is unchang... | 10/01/1991 |
| 5032023 | Optical fiber based sensor for a variable depth range camera An apparatus for a variable depth triangulation ranging system, the ranging system including means for emitting a light beam, means for focusing an emitted light beam on an object, and lens means for imaging reflected light onto an input end of said appar... | 07/16/1991 |
| 5026979 | Method and apparatus for optically monitoring laser materials processing A laser materials processing apparatus including means for optically monitoring the processing and generating a processing signal representative of the processing, means for interpreting the processing signal and generating an interpreted output, and mean... | 06/25/1991 |
| 5015859 | Method and apparatus for detecting wear A method and apparatus for detecting wear of an article is described. In one embodiment, an optical fiber is wrapped helically around and between inner and outer surfaces of the article, such as a conduit. Increased transmission losses through the fiber a... | 05/14/1991 |
| 4999691 | Integrated circuit with stacked MOS field effect transistors A structure and method for making a pair of MOS field effect transistors (MOSFETs), one stacked upon the other in an integrated circuit device is disclosed. In one embodiment of the device, the active layer of the upper MOSFET is epitaxially grown from an... | 03/12/1991 |
| 4998156 | Structure for a complementary-symmetry COMFET pair The present invention is a complementary-symmetry COMFET pair consisting of an N-channel lateral COMFET and a P-channel lateral COMFET interconnected in parallel on the same chip. The device is formed in a layer of single-crystalline silicon of one conduc... | 03/05/1991 |
| 4990995 | Low reflectance conductor in an integrated circuit A low reflectance conductor for an integrated circuit is disclosed. A layer of refractory metal is disposed over the aluminum alloy or silicide conductors commonly in use in integrated circuits. The layer of refractory metal is then treated in a plasma re... | 02/05/1991 |
| 4990877 | Passive shimming assembly for MR magnet A passive shim assembly for a magnet having a central bore is provided. The passive shim assembly includes a plurality of axially extending guide rails bonded directly to the bore of the magnet and equally spaced circumferentially. A plurality of arcuatel... | 02/05/1991 |
| 4989061 | Radiation hard memory cell structure with drain shielding A memory cell structure has a pair of cross-coupled inverters, each inverter having first and second MOS series coupled transistors. Each of the second inverter transistors has a source disposed near the periphery of the cell, a drain disposed closer to t... | 01/29/1991 |
| 4986078 | Refrigerated MR magnet support system A magnet cartridge and thermal shield are supported by three concentric nested thin wall tubes from a vacuum vessel. The innermost tube of thermal insulating material is affixed to magnet cartridge at one end and supports the first stage heat station at t... | 01/22/1991 |
| 4982283 | Line-sequential pyramid processing of a plurality of raster-scanned image variables A plurality of raster-scanned image variables are time-compressed and time-division multiplexed on a line-sequential basis for pyramid analysis. The resulting differential pulse code modulation is statistically encoded and assembled together with digital ... | 01/01/1991 |
| 4979199 | Microfocus X-ray tube with optical spot size sensing means A microfocus X-ray tube has an anode that emits X-rays and, a biproduct of its waste heat, visible and near infrared light. This invention uses the biproduct light to adjust and maintain the focus of the electron beam and enhance the performance of the X-... | 12/18/1990 |
| 4975031 | Rotary compressor with compliant impact surfaces Objectionable noise in a rotary compressor is reduced by placing cavities in the sliding vane and/or the rolling piston. The cavities are used to change the local compliance of surfaces which impact one another to generate the objectionable noise. The cha... | 12/04/1990 |
| 4960970 | Method and apparatus for acoustic breakthrough detection Apparatus for laser processing, such as drilling of a workpiece, optionally has an optical fiber and output coupler for applying laser light to machine a workpiece and cause it to vibrate. An acoustic sensor is mounted on the workpiece, and a determining ... | 10/02/1990 |
| 4935948 | X-ray tube noise reduction by mounting a ring mass An arrangement for reducing noise in an X-ray tube uses a ring mass disposed on the bearing shroud. The ring mass dissipates vibrational energy which would otherwise be transmitted to the glass envelope of the vacuum tube within the casing of the X-ray tu... | 06/19/1990 |
| 4927342 | Compressor noise attenuation using branch type resonator A Helmholtz resonator is used in communication with the compression chamber of a rotary compressor in order to attenuate noise. The resonator concentrates the attenuation of noise in a frequency band around 4 kHz corresponding to the concentration of nois... | 05/22/1990 |
| 4921415 | Cure monitoring apparatus having high temperature ultrasonic transducers An apparatus for monitoring the curing of a fiber reinforced composite plastic which is cured at temperatures of the order of 350° C. and an ultrasonic transducer assembly useful in the apparatus. The transducer assembly comprises a lithium niobate piezo... | 05/01/1990 |
| 4919506 | Single mode optical fiber coupler A hemispherical lens and a spherical lens couple a laser diode light beam to a single mode 10μ core diameter optical fiber producing coupling efficiencies over 60% without anti-reflection coatings, even with substantial misalignments of the lenses.... | 04/24/1990 |
| 4920249 | Weld bead wetting angle detection and control The wetting angle of a bead, such as a welding bead, is detected and controlled by a feedback operation. In particular, one or more optical profiler heads are used to detect the wetting angle along the edge of a bead. If the wetting angles differ from a p... | 04/24/1990 |
| 4919507 | Semiconductor radiation coupling system A first array of laser diode devices are optically coupled by a diffraction grating comprising a plurality of spaced diffraction nodules in a grid array optically coupled to the devices. The light emitted from a device of the first array can pass through ... | 04/24/1990 |
| 4911624 | Reduced friction vane design for rotary compressors An arrangement reduces friction between the sliding vane and rolling piston of a rotary compressor. In particular, a roller is built into a cavity at the tip of the vane. The roller provides rolling contact with the rolling piston so as to minimize fricti... | 03/27/1990 |
| 4911516 | Optical device with mode selecting grating An optical fiber has a beveled end surface and a Bragg reflector grating formed on the end surface to form a single mode reflector for a semiconductor laser. A transmission fiber with a beveled end is fused to the beveled grating to form a continuous tran... | 03/27/1990 |
| 4907164 | Automatically optimized NC tool path generation for machining A method is presented to generate 2D tool paths and to optimize the ordering of these tool paths for 21/2 axis milling of cavities for molds and dies. All motion of the cutting tool is dictated and the number of retractions is reduced to a minimum without... | 03/06/1990 |
| 4902870 | Apparatus and method for transfer arc cleaning of a substrate in an RF plasma system An RF plasma gun has a metal annular support ring at the gun's nozzle exit port. The ring is conductively mounted to a metal tank containing a substrate to be processed. The substrate is connected to a manipulator which is electrically isolated from the t... | 02/20/1990 |
| 4903269 | Error detector for encoded digital signals A line marker signal is added to a DPCM encoded video signal to mark the beginning of each video scan line. The receiver searches for this marker signal and counts pixels between received markers, each scan line having a known number of pixels. The pixel ... | 02/20/1990 |
| 4896269 | Job shop scheduling and production method and apparatus A method for the efficient scheduling of a first plurality of jobs and the performance of the jobs on a second plurality of processing machines uses various heuristic rules in order to meet scheduling objectives. Initially, each job is scheduled on the ma... | 01/23/1990 |
| 4888693 | Method to obtain object boundary information in limited-angle computerized tomography A method is developed to construct the convex hull of an object in limited-angle x-ray computerized tomography. The convex hull is the smallest convex region containing the object, and therefore it can serve as a prior information on the object exterior b... | 12/19/1989 |
