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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 5805044 | Field free chamber in permanent magnet solenoids A low-loss magnetic structure that provides an electron beam focusing field that can be accessed without field reversal. More specifically, the structure provides a uniform magnetic field that can be accessed from an adjacent field-free chamber within whi... | 09/08/1998 |
| 5748359 | Infrared/optical imaging techniques using anisotropically strained doped quantum well structures An imaging system for transferring an infrared (IR) image to a visible image. The imaging system includes a polarization rotator that rotates the polarization of a visible light beam in response to absorptions of radiation from the IR image. A polarizer o... | 05/05/1998 |
| 5705064 | Permanent magnet ring separator A magnetic particle separator for separating such things as ore or blood is ade from a permanent magnet structure which has a plurality of segments combined to form a cylinder. Each of said plurality of segments has a magnetic remanence and direction that ... | 01/06/1998 |
| 5698940 | Method for detrapping light in thin film phosphor displays In the faceplate of a cathode ray tube or in an FED the amount of light emanating from the phosphor that reaches a viewer is increased by the use of internal and external antireflection layers and concavities between layers on the side of the viewer with ... | 12/16/1997 |
| 5686779 | High sensitivity temperature sensor and sensor array A highly sensitive thermal sensor is disclosed which uses a thermally isolated, thermometer cut quartz microresonator that is configured to be exposed to a radiant energy source.... | 11/11/1997 |
| 5680141 | Temperature calibration system for a ferroelectric phase shifting array antenna Telecommunication systems and methods for driving a phased-array antenna ing a plurality of spaced antenna elements that radiate and receive a beam of radio frequency signals. Each of a plurality of ferroelectric phase shifters connect to a different one... | 10/21/1997 |
| 5675355 | Automated coherent clock synthesis for matrix display To interface a video/graphic controller, which produces conventional, ana video output signals, suitable mostly for CRT type displays, to a matrix display, one of the video output signals, for example the horizontal sync signal, is encoded with the clock... | 10/07/1997 |
| 5669063 | Method of establishing line of sight propagation A method of automatically determining the reliability of any LOS radio link given certain parameters. Specifically, this method allows a communications network operator to specify and determine the path reliability (PR) for each backbone and extension lin... | 09/16/1997 |
| 5666098 | Permanent magnet toroidal wiggler and undulator A permanent magnet toroidal structure having a periodic or modulated tranrse magnetic field with an average magnetic field greater than zero providing containment for an electron beam. In one embodiment, permanent magnet toroidal sections having a magnet... | 09/09/1997 |
| 5666097 | Periodic magnetizer A magnetizer for use in forming periodic magnetic fields is provided which utilizes two magnet structures which are coaxially aligned with one another. Two stages of magnetic cores are inserted into a gap between the two magnet structures. The stages of m... | 09/09/1997 |
| 5665970 | Directional radiation detector and imager A radiation sensor and/or imager is formed by sandwiching two materials having different atomic numbers (Z) around a radiation detector, such as scintilator or Geiger-Mueller type radiation counters, or solid state radiation detectors, such as those made ... | 09/09/1997 |
| 5661740 | TEM mode quantum wire or well structure A semiconductor lasing device is formed by disposing a quantum well or quum wire array between positive and negative ohmic contacts such that different potentials are applied along the array to establish a transverse electromagnetic (TEM) mode of the opt... | 08/26/1997 |
| 5652551 | Method for high frequency device operation with high temperature and radiation hard characteristics Micro-scale and nano-scale devices which achieve high frequency signals ug materials having increased electron saturation velocity. These devices have frequencies in the terahertz range with high temperature and radiation hard characteristics. The transi... | 07/29/1997 |
| 5652550 | Method and apparatus for isolating an oscillator from external mechanical and thermal effects using aerogels An oscillator is isolated from external mechanical and thermal effects by rrounding the oscillator on all sides with an aerogel insulation structure that provides both thermal insulation and vibrational isolation above some predetermined low frequency lim... | 07/29/1997 |
| 5650685 | Microcircuit package with integrated acoustic isolator A microcircuit package with an integrated acoustic isolator made up of a stacked acoustic filter. The package includes a rigid, electrically conductive housing with a IC module mounted therein. The acoustic filter includes two electroacoustic transducers ... | 07/22/1997 |
| 5650634 | Interchannel nonequilibrium confined-phonon exchange device A submatrix of semiconductor material contains plural electron conduction annels in either or both series and parallel arrangements. Electrons in the channels are confined by the submatrix and a surrounding main matrix provides photon confinement within t... | 07/22/1997 |
| 5647916 | Hybrid photovoltaic solar panels A mantle or emitter used to illuminate a photovoltaic cell. In one embodit, a tubular mantle or emitter is made of a composite structure including a rare-earth material, such as ytterbium oxide, covering a porous ceramic, such as alumina or zirconia, for... | 07/15/1997 |
| 5644276 | Multi-layer controllable impedance transition device for microwaves/millimeter waves A composite structure including stacked layers of dielectric material hav a center conductor in the form of a cylindrical via which is surrounded by an annular dielectric region and an outer ground plane comprised of contiguous pairs of generally circula... | 07/01/1997 |
| 5642455 | Magnetic optical fiber skein An optical fiber is releasably held in coil or skein form by a magnetized in film coating on the fiber. Adjacent convolutions are held together by a magnetic field to prevent unintended unravelling of the coil, but the fiber can be rapidly played out at h... | 06/24/1997 |
| 5640042 | Thin film ferroelectric varactor A voltage-variable ceramic capacitance device which has a plurality of las in a matching lattice structure and which possesses a symmetric voltage characteristic and a determinable voltage breakdown and has a high resistance to overbiasing or reverse bia... | 06/17/1997 |
| 5637862 | Detector for determining the wavelength of an optical signal An optical detector for determining the wavelength of an optical signal iudes a semiconductor material in the path of the optical signal having a bandgap less than the optical signal. A conductive layer is positioned on the semiconductor material and a p... | 06/10/1997 |
| 5637521 | Method of fabricating an air-filled waveguide on a semiconductor body A method of using layers of gold metallization and a thick film coating of photo-sensitive material to form an air-filled microwave waveguide structure on the outer surface of a semiconductor body, such as a monolithic microwave integrated circuit commonl... | 06/10/1997 |
| 5636100 | Capacitor having an enhanced dielectric breakdown strength A capacitor having an enhanced dielectric breakdown strength is obtained m a base dielectric film by coating the base dielectric film on both sides with an adherent coated dielectric film having a dielectric constant that is at least 50 percent higher th... | 06/03/1997 |
| 5634263 | Methods of manufacture of permanent magnet structures with sheet material Methods of manufacturing relatively complex permanent magnet structures uizing sheets of permanent magnet material. Different permanent magnet structures such as rings, cylinders, spheres, oblate and prolate forms are made from cut or stamped sections of... | 06/03/1997 |
| 5627386 | Silicon nanostructure light-emitting diode The invention provides light sources which are easily compatible with standard silicon VLSI processing and can be located directly in the material of the silicon VLSI chip. P-type silicon substrate is processed to produce proturbances, the proturbances pr... | 05/06/1997 |
| 5623233 | Pulsed optically injection locked MESFET oscillator An optically controlled MESFET semiconductor oscillator assembly having a MESFET semiconductor which, when voltage biased by a pulsed dc voltage, oscillates at a free running frequency; an optical signal delivery system, such as a light intensity modulato... | 04/22/1997 |
| 5621609 | Composite electrode materials for high energy and high power density energy storage devices This invention relates to a composite electrode material for use in high rgy and high power density electrochemical capacitors, and to the electrochemical capacitor containing the electrodes. The electrodes are comprised of materials with high specific c... | 04/15/1997 |
| 5620753 | Method of forming an optical fiber An optical fiber is releasably held in coil or skein form by a magnetized in film coating on the fiber. Adjacent convolutions are held together by a magnetic field to prevent unintended unravelling of the coil, but the fiber can be rapidly played out at h... | 04/15/1997 |
| 5617103 | Ferroelectric phase shifting antenna array A ferroelectric phase shifting antenna array consists of a plurality of lrally spaced antenna patches which have respective ferroelectric components abutting an edge of each patch at a near central location on the edge to provide impedance matching. DC c... | 04/01/1997 |
| 5608566 | Multi-directional electro-optic switch A multiple quantum well layer is sandwiched between two core waveguide layers, which are, in turn, sandwiched by two cladding layers. This layering is deposited on a substrate with a metal contact and the top cladding layer is formed so as to form at leas... | 03/04/1997 |
| 5608282 | Piezoelectrically controlled superconducting switch A piezoelectrically controlled superconducting switch is provided for use in superconducting devices and piezoelectric devices. This switch includes a substrate, a superconductor which is bonded to the substrate, and a piezoelectric subassembly which has ... | 03/04/1997 |
| 5606348 | Programmable display interface device and method A programmable display interface device and method is easily adapted to de a variety of different display devices of different sizes and resolutions including CRT, LCD, EL, FED, and plasma displays. The interface device and method also allows such displa... | 02/25/1997 |
| 5605490 | Method of polishing langasite A piezoelectric material langasite, having a defect free surface is obtai by polishing the surface of the material with a colloidal silica suspension diluted with water to about 10 to 30% concentration by weight and etching the surface of the polished pi... | 02/25/1997 |
| 5604392 | Levitated crystal resonator A crystal resonator in an electrodeless configuration is electrically levitated by a resonant circuit. A quartz plate (or other piezoelectric substrate) is levitated by a resonant circuit which includes an inductor that is external to a housing and a para... | 02/18/1997 |
| 5601948 | Gas plasma treatment of cathodes to improve cell performance A porous carbon black or manganese dioxide cathode, or a lithium, magnesi calcium, zinc, or cadmium anode, is treated under vacuum with a gas plasma. The treated electrode is suitable for inclusion in a nonaqueous electrolyte cell and improves cell perfo... | 02/11/1997 |
| 5600535 | Amorphous thin film electrode materials from hydrous metal oxides This invention relates to a novel electrode material for electrochemical ) capacitors. This invention also relates to a novel method for making such electrode. The electrode material is an amorphous phase of ruthenium oxide formed directly on titanium (T... | 02/04/1997 |
| 5599643 | Lithium electrochemical cell including lithium copper oxide in the cathode A new cathode material, Li2 CuO2, is used in lithium electrocheal cells.... | 02/04/1997 |
| 5596365 | Image stabilization apparatus for telescopic devices An image stabilization system for telescopic devices uses a method of selecting a suitable, stationary reference image. The user of the instrument views a circular image and a translucent ring concentric to and at an outer edge within the circular image. ... | 01/21/1997 |
| 5586251 | Continuous on-local area network monitor A monitoring system for a network having a plurality of segments including plurality of identical monitoring instruments respectively connected to the segments. Each monitoring instrument includes an interconnection circuit card for connecting to its segm... | 12/17/1996 |
| 5585330 | Low-loss, wide bandwidth limiter A high-temperature superconductor (HTc S) in a microstrip configurat which is electrically related to a superconducting coupler and which is controlled by a heater disposed over the superconducting microstrip line. This limiter configuration i... | 12/17/1996 |
