| Patent Number |
Title Of Patent |
Date Issued |
| RE29991 |
Adaptable time division switch |
May 8, 1979 |
| A switching network is disclosed that is capable of handling analog, PCM and CVSD signals connected to said network via loops or trunks. All signals are converted into CVSD format, synchronized to the network clocks, and switching is carried out on a time divided basis by shifting bi |
| RE29450 |
Machine operating condition monitoring system |
October 18, 1977 |
| This invention relates to a system for monitoring the condition and operation of remotely located machines, such as coin-operated vending machines. In one embodiment, switches in each machine convert operating conditions into a binary digital word for that machine, which is stored te |
| 6131022 |
Transceiver and antenna system for communication with remote station |
October 10, 2000 |
| In one aspect of the present invention, a transceiver includes a pair of antennas with one of the receive channels including a predetermined phase shifter for shifting one of the received signals prior to combining the received electromagnetic energy to form a combined signal for process |
| 6122405 |
Adaptive filter selection for optimal feature extraction |
September 19, 2000 |
| A method for analyzing a region of interest in an original image to extract at least one robust feature, including the steps of passing signals representing the original image through a first filter to obtain signals representing a smoothed image, performing a profile analysis on the |
| 5885911 |
Electromagnetic attenuating laminate and method for its formation |
March 23, 1999 |
| An EMI shielding member and method of making the member. The member includes a non-metallic substrate having an electrically non-conductive coating of a dielectric polymer matrix material loaded with an EMI shieldingly effective amount of electrically conductive fibers. The member ca |
| 5867073 |
Waveguide to transmission line transition |
February 2, 1999 |
| A transition between a waveguide and transmission line is disclosed in which a probe portion of the transmission line extends into the waveguide to electrically field couple signals between the waveguide and transmission line. The transmission line is preferably a coplanar fuse and i |
| 5853897 |
Substrate coated with highly diffusive metal surface layer |
December 29, 1998 |
| A method is disclosed for the production of highly diffusive or absorptive metal surfaces. A dendritic crystal structure surface layer of metal is electrodeposited on a substrate, using a bipolar pulse plating technique. This metal surface layer may then be oxidized to provide a highly |
| 5835901 |
Perceptive system including a neural network |
November 10, 1998 |
| A real-time learning (RTL) neural network is capable of indicating when an input feature vector is novel with respect to feature vectors contained within its training data set, and is capable of learning to generate a correct response to a new data vector while maintaining correct respon |
| 5828335 |
Spacecraft communication channel power control system |
October 27, 1998 |
| A control system for the uplink transmitter of a ground station communicating with a spacecraft includes an antenna located at the ground station, pointed toward the spacecraft for receiving downlink signals transmitted therefrom. The received signals are accompanied by noise attribu |
| 5825922 |
Methods and apparatus for centroid based object segmentation in object recognition-type image pr |
October 20, 1998 |
| A digital signal processing system which uses an input image including a plurality of pixels to establish boundaries of objects in the input image. Each of the pixels has a gradient value and the object includes a centroid. Using a segmentation process, the digital signal processing |
| 5817422 |
Optical apparatus having a highly diffusive metal surface layer |
October 6, 1998 |
| A method is disclosed for the production of highly diffusive or absorptive metal surfaces. A dendritic crystal structure surface layer of metal is electrodeposited on a substrate, using a bipolar pulse plating technique. This metal surface layer may then be oxidized to provide a highly |
| 5801970 |
Model-based feature tracking system |
September 1, 1998 |
| Methods and apparatus providing model-based feature tracking for location assessment of a sensor platform, or tracking of a feature are disclosed wherein a series of predictive models are developed to predict a location of features in subsequently acquired sensor data. Feature location d |
| 5776275 |
Fabrication of compact magnetic circulator components in microwave packages using high density i |
July 7, 1998 |
| A magnetic circulator is incorporated into a multi-chip module using a microwave high density interconnect (HDI) structure. A prepackaged circulator can be inserted into a ready-made high density interconnected multi-chip module; this prepackaged circulator may use a stripline design |
| 5770868 |
GaAs substrate with compositionally graded AlGaAsSb buffer for fabrication of high-indium fets |
June 23, 1998 |
| Semiconductor devices made in highindium-content semiconductor material have advantageous properties, but similar substrate materials are hard to handle. A buffer layer makes a lattice-constant transition between a GaAs substrate and a high-indium epitaxially deposited semiconductor such |
| 5757072 |
Structure for protecting air bridges on semiconductor chips from damage |
May 26, 1998 |
| A protective cap is deposited over the top and sides of an air bridge structure located on an integrated circuit chip. The protective cap provides mechanical strength during the application of a high density interconnect structure over the chips, to prevent deformation of the sensiti |
| 5745984 |
Method for making an electronic module |
May 5, 1998 |
| A multi-chip module is provided which utilizes benzocyclobutene as a laminate adhesive for bonding the upper dielectric films in a high density interconnect structure. The benzocyclobutene thermosetting polymer is spin coated on a polyimide film, and baked at low temperature to remove an |
| 5737458 |
Optical light pipe and microwave waveguide interconnects in multichip modules formed using adapt |
April 7, 1998 |
| HDI fabrication techniques are employed to form a variety of optical waveguide structures in polymer materials. Adaptive optical connections are formed, taking into account the actual position and orientation of devices which may deviate from the ideal. Structures include solid light |
| 5722232 |
Hybrid helium heater pressurization system and electrical ignition system for pressure-fed hybri |
March 3, 1998 |
| A system for pressurizing a liquid oxygen tank (20) in a pressure-fed hybrid rocket (100) provides pressure at a first end of the tank (20) so that liquid oxygen can exit the second end. A hybrid heater (50) creates the pressure by mixing gaseous oxygen with the solid fuel (51) in the |
| 5721019 |
Electromagnetic attenuating laminate and method for its formation |
February 24, 1998 |
| An EMI shielding member and method of making the member. The member includes a non-metallic substrate having an electrically non-conductive coating of a dielectric polymer matrix material loaded with an EMI shieldingly effective amount of electrically conductive fibers. The member ca |
| 5709138 |
Method and apparatus for precision cutting of fibers |
January 20, 1998 |
| An apparatus for precision cutting of fiber tow is provided which includes a structure for securing a taut length of fiber tow between two points, a movable cutter, and a structure for guiding a cutting edge of the cutter substantially perpendicularly against the taut length of fiber tow |
| 5703970 |
Method of and apparatus for improved image correlation |
December 30, 1997 |
| A method of and apparatus for computing correlating images using the one dimensional Fast Fourier Transform (FFT) and the symmetry property of the Fourier Transform. In one aspect, the invention is a method of correlating images in the form of a pair of real number arrays. Apparatus for |
| 5701010 |
Dual band polarity reversing multiplexer |
December 23, 1997 |
| A detector array of a plurality of photodetector cells is provided which operates in two spectral bands by utilizing a polarity reversing multiplexer for directly reversing the polarity of different types of photodetector pairs. More particularly, long wave photoconductive quantum we |
| 5699982 |
Spacecraft with heat dissipators mounted on thermally coupled shelves |
December 23, 1997 |
| A spacecraft includes heat-radiating panels. Heat-generating boxes such as TWTs are mounted on shelves which are inside the spacecraft, where they cannot radiate to space. The shelves are coupled by bent heat pipes to the exterior radiating panels. |
| 5687933 |
Attitude control for spacecraft with movable appendages such as solar panels |
November 18, 1997 |
| A spacecraft includes a three-axis attitude control system. When velocity change thrusters are fired, their plumes impinge on a solar array, at angles which vary with the solar array position. This causes disturbance torques which vary with the solar array position. Disturbance torque |
| 5678405 |
Continuously variable hydrostatic transmission |
October 21, 1997 |
| A continuously variable hydrostatic transmission includes an input shaft connected to drive a hydraulic pump unit, a grounded hydraulic motor unit, and an output shaft. A wedge-shaped swashplate is pivotally mounted to the output shaft in driving connection to receive output torque resul |
| 5668940 |
Method and apparatus for anti-aliasing polygon edges in a computer imaging system |
September 16, 1997 |
| The final viewable color of each pixel to be displayed from video data signal output of a computer image generator, is found by: using input data signals setting display space coordinates of each vertex of each face polygon to be displayed, to generate a crossing location of each polygon |
| 5668925 |
Low data rate speech encoder with mixed excitation |
September 16, 1997 |
| A speech signal has its characteristics extracted and encoded (16), transmitted over a limited-data-rate path (18) and is decoded (20) and synthesized (22) at the receiving end. The characteristics include line spectral frequencies (LSF), pitch and jitter. The LSF are extracted by au |
| 5668457 |
Variable-frequency AC induction motor controller |
September 16, 1997 |
| A hydraulic pump (16) is driven by an induction motor (14) from a source of multiphase alternating current (10) of either fixed or variable frequency. The pressure is applied to a hydraulic load, which may vary, and change the pressure. A pressure sensor coupled to the pump produces pres |
| 5663825 |
Stabilized step/stare scanning device |
September 2, 1997 |
| A method and apparatus for holding a line of sight in a scanning imaging system wherein there is continuous relative movement between the field of view of the system and an image plane. A descan mechanism temporarily holds a line of sight within a field of regard as a scanning mechanism |
| 5663523 |
Method of propelling a projectile with ammonium azide |
September 2, 1997 |
| A propellant composition comprising an admixture of a first hydrogen rich material and a second metal material which is capable of reacting exothermically with the first material. The ratio of the first material to the second material is selected such that the exothermic reaction forms a |
| 5661484 |
Multi-fiber species artificial dielectric radar absorbing material and method for producing same |
August 26, 1997 |
| In a radar absorbing material, first or relatively resistive fibers are combined with second or relatively conductive fibers in a dielectric binder. Preferably, the first fibers are graphite filaments and the second fibers are metal coated graphite filaments. The appropriate selection of |
| 5653841 |
Fabrication of compact magnetic circulator components in microwave packages using high density i |
August 5, 1997 |
| A magnetic circulator is incorporated into a multi-chip module using a microwave high density interconnect (HDI) structure. A prepackaged circulator can be inserted into a ready-made high density interconnected multi-chip module; this prepackaged circulator may use a stripline design |
| 5652912 |
Versatile memory controller chip for concurrent input/output operations |
July 29, 1997 |
| A memory controller includes an input data path and an output data path. First circuitry generates signals to put the input data into at least one variably-dimensioned logical array of memory cells of a memory. Second circuitry generates signals to extract from the memory the contents of |
| 5650585 |
Ignitor for use in a liquid monopropellant gas generator |
July 22, 1997 |
| An initiator, for use in a gas generator, includes an enclosed volume in communication with apertures for introducing liquid propellant and pre-pressurization gas into a propellant ignition chamber, and an aperture for introducing combusted gasses into a gas generator. A mechanism for |
| 5648052 |
Liquid monopropellant gas generator |
July 15, 1997 |
| A continuous flow-rate gas generator fueled by liquid mono-propellant includes a propellant storage tank, a motor-driven pump (or other pressurization technique) to force the propellant into a combustion chamber having an enclosed volume, an injector to effectively break up the incom |
| 5647573 |
High pressure fluid valve assembly |
July 15, 1997 |
| To resist mechanical forces tending to unseat a fluid valve applied to seal against a high fluid pressure, a fluid valve assembly is equipped with a valve block that, in response to the high fluid pressure, causes a locking member to be forcibly wedged into clamping engagement with the s |
| 5642617 |
Continuously variable hydrostatic transmission with neutral-setting hydraulic circuit |
July 1, 1997 |
| A continuously variable hydrostatic transmission includes axially aligned input and output shafts journaled by a transmission housing and respectively coupled to a prime mover and a load. The input shaft drives a hydraulic pump unit, while a hydraulic motor unit is grounded to the tr |
| 5636165 |
Apparatus for and method of facilitating proper data transfer between two or more digital memory |
June 3, 1997 |
| An apparatus for and method of ensuring proper transfer of data between two registers. A device driver utilizes a clock signal as an enable input before data is transferred from one register to another. This prevents a misregistration of data when delays in propagation of the clock signa |
| 5631436 |
Gun equipped with down-bore liquid propellant booster stage to increase projectile muzzle veloci |
May 20, 1997 |
| A booster stage is positioned down-bore from the breech of a gun to contain a charge of liquid propellant that is ignited by the combustion gases of a detonated breech propellant charge trailing the projectile down the gun bore. The detonated liquid propellant increases the bore gas pres |
| 5629522 |
Apparatus for and method of providing long integration times in an IR detector |
May 13, 1997 |
| Apparatus for and method of increasing the effective integration time, and, hence, reducing the noise bandwidth of a photodetector. The current output of the photodetector is converted to a voltage signal in a low pass filter. The low pass filter is preferably implemented as a switched |
| 5608400 |
Selectable intermediate frequency sigma-delta analog-to-digital converter |
March 4, 1997 |
| A sigma-delta analog-to-digital converter (10) provides high loop gain for suppression of noise components by use of a regenerative feedback loop or resonator (50), which produces a comb resonance response 212), embedded in the main degenerative feedback loop (48). The main loop includes |
| 5606707 |
Real-time image processor |
February 25, 1997 |
| A real-time image processor has three functional sections: an image manager, an image processor, and an instruction generator. The image processor may be an array of single-instruction multiple-data (SIMD) processing elements, for processing a subframe of sensor data. The instruction |
| 5604822 |
Methods and apparatus for centroid based object segmentation in object recognition-type image pr |
February 18, 1997 |
| A digital signal processing system which uses an input image including a plurality of pixels to establish boundaries of objects in the input image. Each of the pixels has a gradient value and the object includes a centroid. Using a segmentation process, the digital signal processing |
| 5600788 |
Digital test and maintenance architecture |
February 4, 1997 |
| A testing device has an architecture including a board test interface for coupling to test points on a circuit board; a programmable processor, coupled to the board test interface, for controlling a test of the circuit board via the board test interface; and a first communications interf |
| 5594194 |
Dual-axis ammunition reorienter |
January 14, 1997 |
| An ammunition round reorienter is equipped with a gear train having parallel drive paths connecting a common motor to concurrently rotate a platform about a vertical axis and to pivot a tray about a horizontal axis, such that an ammunition round carried by the tray is reoriented both |
| 5594192 |
Active ammunition magazine with improved chain conveyor |
January 14, 1997 |
| A compact ammunition magazine of high storage density contains an endless ammunition conveyor running in a serpentine path. The conveyor includes a succession of units consisting of a pair of rigidly connected tubes that receive ammunition rounds in snug-fitting relation. The tube units |
| 5592441 |
High-gain directional transducer array |
January 7, 1997 |
| A transducer array according to the invention includes forty-two acoustic transducers for use in a fluid medium, with each of the transducers having maximum lateral dimensions of less than one acoustic wavelength in the medium, whereby the transducers themselves tend to radiate isotropic |
| 5592021 |
Clamp for securing a power device to a heatsink |
January 7, 1997 |
| A clamping system is provided for effectively securing at least one power device in a thermally-conductive and electrically-insulative manner to a heatsink with a clamp member having an elongated member portion adapted to bear against a device, and a second member portion having an end a |
| 5586579 |
Combination ball valve and pressure relief valve assembly |
December 24, 1996 |
| To provide pressure relief in a fluid line of a fluidic circuit, the ball element of a shutoff valve incorporates a tube that is aligned with a pair of valve ports when the ball is in the closed valve position. A miniature check valve, positioned in the tube, operates, depending on its |
| 5583507 |
Passive identification of friend vs. foe apparatus and method |
December 10, 1996 |
| A method and apparatus for passive identification includes a series of elements preferably in the form of strips, bars or other geometric shapes, or as dipole antennas made of a material having variable EM retro-reflectivity characteristics. By varying the characteristics of individu |
