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| Number | Title | Issue Date |
| 4849033 | Annealing Group III-V compound doped silicon-germanium alloy for improved thermo-electric conversion efficiency The thermoelectric conversion efficiency of a GaP dope SiGe alloy is improved about 30 percent by annealing the alloy at a temperature above the melting point of the alloy, preferably stepwise from 1200° C. to 1275° C. in air to form large grains having... | 07/18/1989 |
| 4847502 | Dual cathode system for electron beam instruments An electron beam source having a single electron optical axis is provided with two coplanar cathodes equally spaced on opposite sides from the electron optical axis. A switch permits selecting either cathode, and a deflection system comprised of electroma... | 07/11/1989 |
| 4839121 | High density tape casting system A system is provided for molding a slurry containing particles in a solution of solvent and binder, which enables the close control of the production of a tape with particles of a high density. A rotor forms a chamber with a cylindrical molding surface, a... | 06/13/1989 |
| 4835973 | Cryogenic regenerator including sarancarbon heat conduction matrix A saran carbon matrix is employed to conduct heat through the heat storing volume of a cryogenic regenerator. When helium is adsorbed into the saran carbon matrix, the combination exhibits a volumetric specific heat much higher than previously used lead b... | 06/06/1989 |
| 4831829 | Krypton based adsorption type cryogenic refrigerator Krypton and a monolithic porous carbon such as Saran carbon are used respectively as the sorbate and sorbent of an adsorption type refrigerator to improve refrigeration efficiency and operational longevity.... | 05/23/1989 |
| 4829899 | Timing control system A timing control system is disclosed which is particularly useful in connection with simulated mortar shells. Special circuitry is provided to assure that the shell does not overshoot, but rather detonates early in case of an improper condition; this ensu... | 05/16/1989 |
| 4829303 | Data volume reduction for imaging radar polarimetry Two alternative methods are disclosed for digital reduction of synthetic aperture multipolarized radar data using scattering matrices, or using Stokes matrices, of four consecutive along-track pixels to produce "averaged" data for generating a synthetic p... | 05/09/1989 |
| 4824520 | Liquid encapsulated crystal growth Low-defect crystals are grown in a closed ampoule under a layer of encapsulant. After crystal growth, the crystal is separated from the melt and moved into the layer of encapsulant and cooled to a first temperature at which crystal growth stops. The cryst... | 04/25/1989 |
| 4823299 | Systolic VLSI array for implementing the Kalman filter algorithm A method and apparatus for processing signals representative of a complex matrix/vector equation. More particularly, signals representing an orderly sequence of the combined matrix and vector equation, known as a Kalman filter algorithm, are processed in ... | 04/18/1989 |
| 4823074 | Low power consumption current transducer A low power consumption current transducer utilizes a saturable core reactor which includes a pair of opposed gate windings and a control winding. The control winding of the saturable reactor is arranged to receive the current to be measured. A square wav... | 04/18/1989 |
| 4819064 | Television monitor field shifter and an opto-electronic method for obtaining a stereo image of optimal depth resolution and reduced depth distortion on a single screen A method and apparatus for obtaining a stereo image with reduced depth distortion and optimum depth resolution. Static and dynamic depth distortion and depth resolution trade-off is provided. Cameras obtaining the images for a stereo view are converged at... | 04/04/1989 |
| 4818868 | Trochoidal analysis of scattered electrons in a merged electron-ion beam geometry The method and apparatus of this invention provides a plurality of measurements indicative of the absolute cross section for excitation of an ion beam. The ion beam is merged for excitation by specific energies of electrons in an electron beam. Both beams... | 04/04/1989 |
| 4807168 | Hybrid analog-digital associative neural network Random access memory is used to store synaptic information in the form of a matrix of rows and columns of binary digits. N rows read in sequence are processed through switches and resistors, and a summing amplifier to N neural amplifiers in sequence, one ... | 02/21/1989 |
| 4790026 | Programmable pipelined image processor A pipelined image processor selectively interconnects modules in a column of a two-dimensional array to modules of the next column of the array of modules 1,1 through M,N, where M is the number of modules in one dimension and N is the number of modules in... | 12/06/1988 |
| 4771823 | Self-actuating heat switches for redundant refrigeration systems A dual refrigeration system for cooling a sink device is described, which automatically thermally couples the cold refrigerator to the sink device while thermally isolating the warm refrigerator from the sink device. The system includes two gas gap heat s... | 09/20/1988 |
| 4497540 | Optical system Disclosed is an optical system used in a spacecraft to observe a remote surface and provide a spatial and spectral image of this surface. The optical system includes aspheric and spherical mirrors aligned to focus at a first focal plane an image of the su... | 02/05/1985 |
| 4449894 | Centrifugal-reciprocating compressor A centrifugal compressor (50) includes at least one pair of cylinders (56 and 58) arranged in coaxial alignment and supported for angular displacement about a common axis of rotation (84) normally bisecting a common longitudinal axis of symmetry for the c... | 05/22/1984 |
| 4443701 | Integrating IR detector imaging systems An integrating IR detector array for imaging is provided in a hybrid circuit with InSb mesa diodes (1, 2 . . . 128) in a linear array, a single J-FET preamplifier (30) for readout, and a silicon integrated circuit multiplexer (34). A reset switch (32) is ... | 04/17/1984 |
| 4434490 | Spectrophone stabilized laser with line center offset frequency control Continuous offset tuning of a frequency stabilized cw gas laser (10) is achieved by using a spectrophone (14) filled with the same gas as the laser for sensing a dither modulation, detecting a first or second derivative of the spectrophone output with a l... | 02/28/1984 |
| 4431306 | Method and apparatus for precision control of radiometer A radiometer controller (11) of a radiation detector (10) is provided with a calibration method and apparatus comprised of mounting all temperature sensitive elements of the controller in thermostatically controlled ovens (26) during calibration and measu... | 02/14/1984 |
| 4425376 | Contactless pellet fabrication A small object (12, FIG. 2) is coated by holding it in the pressure well (20) of an acoustic standing wave pattern, and then applying a mist of liquid coating material (42) at low velocity into the pressure well. The pressure gradient within the well forc... | 01/10/1984 |
| 4420977 | Acoustic rotation control A system is described for acoustically controlled rotation of a levitated object (12), which avoids deformation of a levitated liquid object. Acoustic waves (50, 52 in FIG. 6) of the same wavelength are directed along perpendicular directions across the o... | 12/20/1983 |
| 4420352 | Absorbable-susceptor joining of ceramic surfaces An assembly (28) of ceramic surfaces (21, 23), particularly refractory metal oxides and carbides, abutting a thin sheet (22) of metal susceptor material are placed in a chamber (10) of an enclosure (14) containing inert gas (36). An r.f. coil (24) is acti... | 12/13/1983 |
| 4418722 | Pressure letdown method and device for coal conversion systems In combination with a reactor for a coal utilization system, a pressure letdown device for accepting from a reactor, a polyphase fluid at an entrance pressure and an entrance velocity, and discharging the fluid from the device at a discharge pressure subs... | 12/06/1983 |
| 4414080 | Photoelectrochemical electrodes The surface (20) of a moderate band gap semiconductor (12) such as p-type molybdenum sulfide is modified to contain an adherent film (24) of charge mediating ionene polymer containing an electroactive unit such as bipyridinium. Electron transport between ... | 11/08/1983 |
| 4405197 | Optical fiber tactile sensor A tactile sensor comprises an array of cells which are covered by an elastic membrane, having an exposed surface which is adapted to come in contact with an object. Light is conducted to each cell from a light source by an optical fiber which terminates a... | 09/20/1983 |
| 4401505 | Method of increasing minority carrier lifetime in silicon web or the like A silicon dendrite is grown as a ribbon forming two silicon crystal layers which are separated by an interface layer which contains a large number of defects. Significant increase of minority carrier lifetime with homogeneous distribution at the outer sur... | 08/30/1983 |
| 4400191 | Sphere forming method and apparatus A system is provided for forming small accurately-spherical objects. Preformed largely-spherical objects (18) are supported at the opening of a conduit (16) on the update of hot gas emitted from the opening, so the object is in a molten state. The conduit... | 08/23/1983 |
| 4375281 | Aircraft canopy lock A manually-operable lock for releasably securing a canopy 10 in closed condition characterized by a pair of dogs 28 mounted in fore-and-aft alignment on the wall of the cockpit of an aircraft, a pair of dog receivers 16 mounted on the canopy in juxtaposit... | 03/01/1983 |
| 4371873 | Clutter free synthetic aperture radar correlator A synthetic aperture radar correlation system including a moving diffuser located at the image plane of a radar processor. The output of the moving diffuser is supplied to a lens whose impulse response is at least as wide as that of the overall processing... | 02/01/1983 |
| 4355311 | Multibeam single frequency synthetic aperture radar processor for imaging separate range swaths A single-frequency multibeam synthetic aperture radar for large swath imaging is disclosed. Each beam illuminates a separate "footprint" (i.e., range and azimuth interval). The distinct azimuth intervals for the separate beams produce a distinct Doppler f... | 10/19/1982 |
| 4346595 | CAT Altitude avoidance system A method and apparatus are provided for indicating the altitude of the tropopause or of an inversion layer wherein clear air turbulence (CAT) may occur, and the likely severity of any such CAT, which includes directing a passive microwave radiometer on th... | 08/31/1982 |
| 4295140 | Faraday rotation measurement method and apparatus A method and apparatus for measuring Faraday rotation of a received rf signal. The disclosure describes a specific implementation of a simultaneous orthogonal polarization receiver which compensates for a 3 db loss due to splitting of a received signal in... | 10/13/1981 |
| 4292634 | Real-time multiple-look synthetic aperture radar processor for spacecraft applications A spaceborne synthetic aperture radar having pipeline multiple-look data processing makes use of excessive azimuth bandwidth in radar echo signals to produce multiple-look images. Time multiplexed single-look image lines from an azimuth correlator go thro... | 09/29/1981 |
| 4292375 | Superplastically formed diffusion bonded metallic structure A structure particularly suited for use in aerospace industries comprising a base plate, a cover plate, and an orthogonally corrugated core including a pair of core plates formed of a superplastic alloy interposed between the base plate and the cover plat... | 09/29/1981 |
| 4290779 | Solar heated fluidized bed gasification system A solar-powered fluidized bed gasification system for gasifying carbonaceous material. The system includes a solar gasifier (10) which is heated by fluidizing gas and steam. Energy to heat the gas and steam is supplied by a high heat capacity refractory h... | 09/22/1981 |
| 4287578 | Method for shaping and aiming narrow beams A method and apparatus is disclosed for use of a linear frequency chirp in a transmitter/receiver (14/16) having a correlator to synthesize a narrow beamwidth pattern from otherwise broadbeam transducers when there is relative velocity between the transmi... | 09/01/1981 |
| 4287606 | Fiber optic transmission line stabilization apparatus and method A fiber optic transmission line stabilizer for providing a phase-stabilized signal at a receiving end of a fiber optic transmission line (26) with respect to a reference signal at a transmitting end of the fiber optic transmission line (26) so that the ph... | 09/01/1981 |
| 4283705 | System for providing an integrated display of instantaneous information relative to aircraft attitude, heading, altitude, and horizontal situation A display device particularly suited for providing the pilot of an aircraft with combined inflight attitude, heading, altitude, and horizontal situation information previously available only by using two or three devices providing separate displays. The p... | 08/11/1981 |
| 4282525 | Microwave limb sounder A microwave limb sounder (MLS) to measure trace gases in the upper atmosphere by comparing spectral noise content of limb soundings with the spectral noise content of cold space utilizes an offset Cassegrain antenna system and a tiltable input mirror to a... | 08/04/1981 |
