| Patent Number |
Title Of Patent |
Date Issued |
| 5666130 |
Point addressable display assembly, method of operating same, and method of fabricating same |
September 9, 1997 |
| A method of operating a liquid crystal display, and a liquid crystal display constructed to operate in accordance with the method. The liquid crystal display has a plurality of display pixels, and the method comprises the steps of (a) operating a first switch (S1) for storing a charg |
| 5665274 |
Electrically conductive black silicone paint having spacecraft applications |
September 9, 1997 |
| A spacecraft includes a spacecraft element, such as a deployable antenna, and a black paint on the spacecraft element. The paint has a composition of 100 parts by weight of a methyl phenyl silicone-based polymer, and from about 1.35 to about 3.5 parts by weight of an electrically conduct |
| 5663728 |
Digital-to-analog converted (DAC) and method that set waveform rise and fall times to produce an |
September 2, 1997 |
| A DAC converts a sequence of digital codewords into an approximately piecewise linear analog waveform that follows rising and falling edges between plateau levels. The DAC processes, in parallel, each bit of the codewords to produce component waveforms that are weighted according to |
| 5663583 |
Low-noise and power ALGaPSb/GaInAs HEMTs and pseudomorpohic HEMTs on GaAs substrate |
September 2, 1997 |
| An epitaxial structure and method of manufacture for a field-effect transistor capable of low-noise and power applications. Preferably, the epitaxial structure includes an N-type barrier layer comprising a wide-gap semiconductor material having the formula Al.sub.1-y Ga.sub.y P.sub.0.71+ |
| 5663095 |
Method of making a micro-dimensional coupling conductor |
September 2, 1997 |
| A micro-dimensional coupling conductor with a shape that is customized for a particular electronic device. A fabrication method is used in which the physical dimensions of the conductor are precisely controlled with photolithographic techniques, resulting in a conductor that is more |
| 5658181 |
Die and method for applying radial forces to an eccentric workpiece |
August 19, 1997 |
| A die is disclosed for applying radial force to an eccentric workpiece. The die includes a set of faces that are each inclined from an orthogonal relationship with a different radial plane of the workpiece by an offset angle. The die also includes wedges that are positioned on the faces. |
| 5655210 |
Corona source for producing corona discharge and fluid waste treatment with corona discharge |
August 5, 1997 |
| A corona source suitable for use in vehicle ignition systems uses a conductive coil that receives an RF input at one end and has a corona discharge site at the other end, with a reference electrode capacitively coupled to the coil. The pitch and the length of the coil are selected to |
| 5652696 |
Mechanically captivated integrated circuit chip |
July 29, 1997 |
| A high frequency microwave integrated circuit assembly (14,20) includes a fragile monolithic microwave integrated circuit (MMIC) chip (22) mounted in an MMIC subassembly (20) that is completely assembled, tested and burned in independent of the main high frequency microwave integrated |
| 5652586 |
Charge integrating-type analog to digital converter employing rapid charge neutralization and N- |
July 29, 1997 |
| A Sigma Rho A/D converter (10) includes a transconductance element (R) having an input node for receiving an input voltage signal V.sub.in and an output node providing an analog current I.sub.in ; a charge integrator (12) having an input coupled to the output node, the charge integrator |
| 5652534 |
Precision digital phase shifter |
July 29, 1997 |
| A phase shifter that employs digital circuitry to achieve arbitrarily fine phase control of reference signals at frequencies extending to the Gigahertz region. The phase shifter includes a cascade of identical phase shift units that provide progressively finer phase control resolution ov |
| 5652512 |
Advanced digital flux gate magnetometer |
July 29, 1997 |
| Digital logic comprising a high speed analog to digital converter, a high speed analog to digital converter, a digital multiplier, and an infinite impulse response filter and decimation circuit are used to digitize a magnetic signal that is subsequently processed by magnetic data process |
| 5652448 |
Nonvolatile memory device |
July 29, 1997 |
| The gate structure for a nonvolatile memory device comprising an EEPROM and a latch transistor is fabricated on a substrate by patterning the EEPROM's floating gate in a first polysilicon layer, patterning the EEPROM's control gate over the floating gate in a second polysilicon layer, an |
| 5651495 |
Thermoelectric cooler assisted soldering |
July 29, 1997 |
| An improved method for soldering a thermoelectric cooler between an electronic device and a heatsink. Thermoelectric coolers are assembled by soldering parts together using a first solder. The bottom surface of the thermoelectric cooler is first soldered to the heatsink using a second |
| 5651276 |
Dry-cleaning of garments using gas-jet agitation |
July 29, 1997 |
| Substantial amounts of particulate soils in garments can be removed by agitation in gas-jet in a solvent-free, low-pressure environment. The ability of the present gas-jet agitation system to remove particulate soils from garments and fabrics rivals that of conventional dry-cleaning |
| 5651180 |
Green ceramic via metallization technique |
July 29, 1997 |
| The present invention provides a method and apparatus for metallizing vias in co-fired ceramic green tape. A vacuum operated pick and place anvil comprising a porous block is used to pick up conductor balls from a bed. Air pressure is used to create a vacuum which pulls the conductor bal |
| 5650760 |
Microwave enclosure |
July 22, 1997 |
| Microwave ports and low-frequency ports of a microwave enclosure are configured to realize high return losses and low insertion losses and suppress resonance modes below a predetermined microwave frequency. The microwave ports include microwave transmission lines which have first and |
| 5650738 |
Precision digital phase shift element |
July 22, 1997 |
| A precision digital phase shift element for achieving precise phase shift of an input pulse train signal. The output is a pulse train at a frequency equal to the input signal frequency divided by N, and having N equally spaced phase states. The relative phase state of the output signal i |
| 5650240 |
Multicell battery system with individually controllable cell bypasses |
July 22, 1997 |
| A multicell battery system includes at least two battery cells, and a selective cell bypass for each of the battery cells. Each cell bypass includes a metal-oxide-semiconductor field effect transistor (MOSFET) having a source, a drain, and a gate, a first electrical interconnection f |
| 5649507 |
Corona discharge ignition system |
July 22, 1997 |
| A corona source suitable for use in vehicle ignition systems uses a conductive coil that receives an RF input at one end and has a corona discharge site at the other end, with a reference electrode capacitively coupled to the coil. The pitch and the length of the coil are selected to |
| 5647038 |
Narrow bandwidth Bragg grating reflector for use in an optical waveguide |
July 8, 1997 |
| A narrow bandwidth Bragg grating reflector comprises at least two Bragg reflection gratings positioned to form a Fabry-Perot etalon, with an optical gain medium between them. The etalon formed by the Bragg gratings has a reflection frequency spectrum that exhibits a plurality of primary |
| 5646069 |
Fabrication process for Al.sub.x In.sub.1-x As/Ga.sub.y In.sub.1-y As power HFET ohmic contacts |
July 8, 1997 |
| A metal system that can be adjusted to obtain higher alloying temperatures in AlInAs/GaInAs heterostuctures is disclosed. Increasing the thickness of a Ag layer in the metal system facilitates higher alloying temperatures and, consequently, improved ohmic contact reliability. The system |
| 5644277 |
Three-wire-line vertical interconnect structure for multilevel substrates |
July 1, 1997 |
| A vertical interconnect structure comprising a three-wire-line transmission line structure for providing electrical continuity between different levels of a multilevel substrate. The present invention provides a means for transferring power between various levels of the substrate without |
| 5644243 |
Detector power linearity requirements and verification techniques for TMI direct detection recei |
July 1, 1997 |
| A system (36, 98) for determining the linearity of an RF detector (46, 106). A first technique involves combining two RF signals from two stable local oscillators (38, 40) to form a modulated RF signal having a beat frequency, and applying the modulated RF signal to a detector (46) being |
| 5643505 |
Method for making low cost infrared windows |
July 1, 1997 |
| Low cost broadband infrared windows are fabricated using a near net shape process which greatly reduces the cost of machining and grinding window materials. The fabrication of zinc sulfide (ZnS) IR windows uses ceramic powder processing to avoid the expensive prior art chemical vapor |
| 5641546 |
Passivation of electronic modules using high density plasmas |
June 24, 1997 |
| Passivating coatings are formed on populated electronic boards, such as a sealed chip on board electronic module, or the like, using a high density plasma deposition method that employs an electron cyclotron resonance (ECR) reactor. A populated electronic board is disposed in the electro |
| 5638252 |
Electrical device and method utilizing a positive-temperature-coefficient ferroelectric capacito |
June 10, 1997 |
| A capacitor (20) is fabricated using a ferroelectric material (28) such as a layered perovskite material of the Aurivillius family. The capacitor (20) has a positive temperature coefficient (PTC) of capacitance. When used in an electrical device other than a memory device in place of a |
| 5637027 |
CO.sub.2 jet spray system employing a thermal CO.sub.2 snow plume sensor |
June 10, 1997 |
| CO.sub.2 jet spray cleaning apparatus that monitors CO.sub.2 snow plume characteristics. The present invention is a CO.sub.2 jet spray cleaning system that comprises a holding tank for containing liquid CO.sub.2, a spray nozzle coupled to the holding tank, a valve coupled between the |
| 5635929 |
Low bit rate video encoder and decoder |
June 3, 1997 |
| Methods and systems for encoding a video signal into a bit stream, and for reconstructing the video signal from the bit stream are disclosed. In an embodiment of an encoder, an object encoder (22) assigns a symbolic code to an object contained in at least one video frame, wherein the sym |
| 5634053 |
Federated information management (FIM) system and method for providing data site filtering and t |
May 27, 1997 |
| A FIM system integrates data from a plurality of interconnected local databases to provide users with access to a virtual database. The FIM includes a user interface for generating a global query to search the virtual database, a smart dictionary database (SDD) that contains configur |
| 5632881 |
Measuring magnesium concentrations in molten metal alloys |
May 27, 1997 |
| A simple robust sensor probe for determining the magnesium concentration in molten metal alloys in real-time. The probe provides needed process control information in molten metal technologies and has particular application to processes for removing magnesium impurities from scrap al |
| 5630154 |
Programmable systolic array system arranged in a found arrangement for passing data through prog |
May 13, 1997 |
| A linear systolic array of computation cells, each cell having several vector rotation stages. These stages are programmable to provide efficient implementation of a variety of matrix algorithms. All data movement between cells is via parameterized data packets, and the full linear s |
| 5629241 |
Microwave/millimeter wave circuit structure with discrete flip-chip mounted elements, and method |
May 13, 1997 |
| A microwave/millimeter wave circuit structure supports discrete circuit elements by flip-chip mounting to an interconnection network on a low cost non-ceramic and non-semiconductor dielectric substrate, preferably Duroid. The necessary precise alignment of the circuit elements with conta |
| 5628831 |
Method for cleaning contaminants from a body in space using a space charge neutral plasma |
May 13, 1997 |
| Contaminants are cleaned from the surface of a body in space by generating a substantially space-charge neutral reactive plasma, directing the plasma onto the contaminated surface at an energy below the surface sputtering energy (typically 20 eV), and reacting the plasma with the contami |
| 5625624 |
High data rate satellite communication system |
April 29, 1997 |
| A satellite-based communication system providing high rate transfer of data between linked terminals. The system comprises a plurality of user terminals (VSAT's) that are linked by and that communicate with each other by way of a satellite-based relay system. A network control center |
| 5625499 |
Achromatic and apochromatic prism element employing prisms and gratings |
April 29, 1997 |
| An apochromatic grism (42) includes a first prism (48) with a second prism (50) disposed adjacent to it. A grating (44) is adjacent to the front surface of the first prism (48) and the Abbe number and dispersion coefficient of the grating are chosen such that the primary and secondary |
| 5623235 |
Wide-bandwidth variable attenuator/modulator using giant magnetoristance technology |
April 22, 1997 |
| A wide-bandwidth variable attenuator/modulator incorporating a region of material comprising a combination of a ferromagnetic/nonmagnetic material which exhibits a Giant Magnetoresistance (GMR) effect. |
| 5621730 |
Multiple user digital receiver apparatus and method with time division multiplexing |
April 15, 1997 |
| A digital receiver apparatus and method, designed for multiple simultaneous users, digitizes a received analog RF signal and tunes to multiple desired frequencies of the received signal on a time division multiplexed basis. After filtering by a finite impulse response (FIR) filter that a |
| 5619095 |
Projection cathode ray tube having tapered shaft screw target assembly |
April 8, 1997 |
| A projection cathode ray tube having an improved target assembly (22) for minimizing target tilt and hot focus drift is disclosed. The target member (24) is supported by a shaft screw (37) secured to a face plate (20) of the projection tube by an adjustment pad (58) external to the tube |
| 5617099 |
Adaptive filtering of matched-filter data |
April 1, 1997 |
| An adaptive processor which uses the successive range and Doppler outputs of a conventional matched-filter to improve the signal-to-noise ratio for non white noise/clutter. The adaptive processor minimizes the output for a given range and Doppler cell with the constraint that the respons |
| 5616517 |
Flip chip high power monolithic integrated circuit thermal bumps and fabrication method |
April 1, 1997 |
| A high power, flip-chip microwave monolithic integrated circuit (MMIC) assembly (30) has a high power microwave monolithic integrated circuit (MMIC) having a surface with an active area (72) in which heat is generated. The assembly also has a host substrate (34). A thermally conducti |
| 5616185 |
Solar cell with integrated bypass diode and method |
April 1, 1997 |
| An integrated solar cell-bypass diode assembly is provided by forming at least one recess in the back (non-illuminated) side of the solar cell and placing at least one discrete low-profile bypass diode in respective recesses so that each bypass diode is approximately flush with the back |
| 5614919 |
Wire diamond lattice structure for phased array side lobe suppression and fabrication method |
March 25, 1997 |
| A diamond matrix metallic mesh suppresses RF energy, and particularly side lobe energy, in a phased array antenna, while passing main beam energy. The metal mesh emulates the structure of the bond segments joining the carbon atoms in a diamond structure. The wire diamond lattice structur |
| 5614675 |
System and method for using phase differences to measure the thickness of an optical element |
March 25, 1997 |
| A system and technique for measuring the thickness of an optical element. A first energy signal of a first phase is transmitted into the element. The first signal reflects off of a distal surface of the element and is detected as a return signal. The phase of the reflected signal is comp |
| 5614033 |
Rigid solar panel with discrete lattice and carrier structures bonded together |
March 25, 1997 |
| Discrete carrier and lattice structures are bonded together to form a lightweight rigid solar panel. The carrier includes a pair of electrically inert face sheets bonded on opposite sides of a thin thermoconductive honeycomb core. The face sheets provide an electrically inert surface for |
| 5612800 |
LCLV having photoconductive pedestals each having a cross-sectional area no greater than 5 perce |
March 18, 1997 |
| A liquid crystal light valve is provided with an array of photoconductive pedestals surrounded by a dielectric matrix material. Metal mirror pads are formed on top of each pedestal to form a high resolution metal matrix mirror, with each pedestal/mirror combination servicing one image pi |
| 5611491 |
Modular CO.sub.2 jet spray device |
March 18, 1997 |
| A modular jet spray device for use in cleaning submicron sized particles and molecular films using CO.sub.2 spray. The modular jet spray device comprises a valve body having first and second ends and an gas input for receiving a CO.sub.2 cleaning agent. A jet spray nozzle is removably |
| 5611008 |
Substrate system for optoelectronic/microwave circuits |
March 11, 1997 |
| A low-loss substrate system is provided for carrying and interconnecting optoelectronic/microwave circuits. The system includes a high-resistivity substrate, e.g., silicon of resistivity >1.times.10.sup.3 ohm-centimeter. A dielectric layer, e.g., silicon dioxide, is preferably deposit |
| 5610930 |
Voltage adding diode laser array |
March 11, 1997 |
| An array (10) of diode lasers (12) is comprised of a substrate (22) having a plurality of electrically conductive surface areas (24, 24a, 24b, 24c) and a plurality of diode laser subassemblies (20) individual ones of which are conductively coupled to one of the plurality of surface areas |
| 5610848 |
Robust resonance reduction using staggered posicast filters |
March 11, 1997 |
| A method for filtering actuator commands for a satellite control system to reduce resonant mode excitation despite uncertain knowledge of the resonance frequencies, due to parameter variations, nonlinearities, and the like. The present method filters the actuator commands with staggered |
| 5610086 |
Method of making an AlPSb/InP single heterojunction bipolar transistor on InP substrate for high |
March 11, 1997 |
| An epitaxial structure and method of manufacture for a single heterojunction bipolar transistor capable of being utilized in high-speed and high-power applications. Preferably, the epitaxial structure comprises an N-type collector made from InP, a P-type base made from InP, and an N- |
