Patents Represented by Attorney Allan Y. Lee
  • Patent number: 8350769
    Abstract: A Frequency Agile Electrically Small Tactical AM Broadcast Band Antenna System (NC#098978) comprising a transmitter, antenna, plurality of mast wires and configurable tophat assembly. The transmitter is designed to transmit radio frequency signals. The antenna tuning unit is operatively coupled to the transmitter and designed to tune the apparatus to a desired frequency. The plurality of mast wires operatively is coupled to the antenna tuning unit and designed to receive and output radio frequency signals. The configurable tophat assembly is operatively coupled to the plurality of mast wires. The configurable tophat assembly comprises a tophat disc comprising a conductive material, a plurality of tophat wires comprising a conductor material and a plurality of tophat jumpers designed to help configure said plurality of tophat wires to different lengths by providing electrical open and electrical short states.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: January 8, 2013
    Assignee: United States of America as represented by Secretary of the Navy
    Inventor: Ken Allen Crawley
  • Patent number: 7459324
    Abstract: A Metal Nanoparticle Photonic Bandgap Device in SOI Method (NC#098884). The method includes providing a substrate having a semiconductor layer over an insulator layer, operatively coupling the substrate to a photonic bandgap structure having at least one period, wherein the photonic bandgap structure is adapted to receive and output light along a predetermined path, and operatively coupling the photonic bandgap structure and the substrate to a metal nanoparticle structure comprising at least three metal nanoparticles having spherical shapes of different radii, wherein the at least three metal nanoparticles are adapted to receive and amplify light rays and output amplified light.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: December 2, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joanna N. Ptasinski, John Scott Rodgers, Stephen Russell
  • Patent number: 7250921
    Abstract: A method and apparatus for a multiband frequency distributed circuit apparatus with FSS. The apparatus includes a circuit, a first dielectric layer, a first FSS layer, a second layer and a ground plane. The first dielectric layer is operatively coupled to the circuit. The first FSS layer is operatively coupled to the first dielectric layer and is capable of passing a first frequency band. The second layer is operatively coupled to the first FSS layer and includes a dielectric material. The ground plane is operatively coupled to the second layer. A method for implementing a multiband frequency distributed circuit is also disclosed.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: July 31, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Willard I. Henry, Thinh Q. Ho
  • Patent number: 7233730
    Abstract: A 3D Photonic Bandgap Device in SOI Method (NC#97881). The method includes providing a substrate comprising a semiconductor layer over an insulator layer and fabricating a 3D photonic bandgap structure having at least one period over the substrate.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: June 19, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: John Scott Rodgers, Joanna N. Ptasinski, Stephen D. Russell
  • Patent number: 7205835
    Abstract: An increased power efficient switching mode power amplifier system. The system includes a SMPA and an E/S reactive component. The SMPA includes a transistor, an RF choke and a tank circuit. The transistor has an emitter/source and is capable of receiving an input signal. The RF choke is operatively coupled to the transistor. The tank circuit is operatively coupled to the RF choke and the transistor. The E/S reactive component is operatively coupled to the emitter/source of the transistor of the SMPA. The E/S reactive component has a desired E/S degeneration reactive component value. A method for an increased power efficient switching mode power amplifier system is also described.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: April 17, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Donald Y. C. Lie, Jeremy Popp
  • Patent number: 7194132
    Abstract: A method for detecting anomalies from multidimensional data comprises: a) receiving multidimensional data; b) estimating background parameters of a normal compositional model from the multidimensional data; c) estimating abundance values of the normal compositional model from the background parameters and the multidimensional data; d) determining an anomaly detection statistic from the multidimensional data, the background parameters, and abundance values; and e) classifying an observation from the multidimensional data as either a background reference or an anomaly from the anomaly detection statistic.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: March 20, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: David Walter Stein
  • Patent number: 7194175
    Abstract: A 3D Photonic Bandgap Device in SOI (NC#97719). The structure includes a substrate having a semiconductor layer over an insulator layer and a 3D photonic bandgap structure having at least one period operatively coupled to the substrate.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: March 20, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John Scott Rodgers, Joanna N. Ptasinski, Stephen D. Russell
  • Patent number: 7193350
    Abstract: An electroactive polymer (EAP) structure. The structure includes at least one EAP strand. An EAP strand includes a plurality of EAP segments and a plurality of insulators. An EAP segment includes an EAP tile and an activator. The activator facilitates activation of the EAP tile. The plurality of EAP segments and the plurality of insulators have a concatenated configuration, wherein adjacent EAP segments are electrically separated by one of the plurality of insulators, and wherein the EAP segments are operatively coupled to the plurality of insulators. A method for the system is also described.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: March 20, 2007
    Assignee: United States of America as Represented by the Secretary of the Navy
    Inventors: Michael R. Blackburn, Selahattin Ozcelik
  • Patent number: 7153749
    Abstract: A method of tuning threshold voltages of interdiffusible structures. The method includes a step of situating a interdiffusible structure in a path of a laser and a step of illuminating the interdiffusible structure with laser energy until a desired threshold voltage is obtained.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: December 26, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ryan P. Lu, Ayax D. Ramirez, Bruce W. Offord, Stephen D. Russell
  • Patent number: 7148855
    Abstract: A concave tapered slot antenna. The antenna includes a first antenna element, a second antenna element and a concave dielectric lens. The first and second antenna elements are situated in a tapered slot antenna configuration. The concave dielectric lens is situated between said first and second antenna elements so that a 3 dB beamwidth for selected frequencies is increased. A method for fabricating concave tapered slot antennas is also described.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: December 12, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert S. Homer, Robbi Mangra, Hale B. Simonds
  • Patent number: 7054230
    Abstract: Locator device that can be used to aid in the recovery of or to provide positional information about a structure that becomes submerged. The locator device for submerged structures consists of one or more modules. Each module can be customized to incorporate one or more features including a power source, a transmitter or source, a receiver or detector, a fastener means, a computer, buoyancy means, a propulsion means, and a communications means.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: May 30, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Robert S Nelson
  • Patent number: 7045784
    Abstract: A method and apparatus for micro-Golay cell infrared detector. The detector includes a microchannel plate array, sealing membrane, flexible membrane, IR absorbent medium and thermally reactive medium. The microchannel plate array has an upper surface and a lower surface and includes chamber walls and chambers. The sealing membrane is operatively coupled to the microchannel plate array and is capable of sealing the lower surface. The flexible membrane is operatively coupled to the upper surface and is capable of deforming. The IR absorbent medium is operatively coupled to the chambers and is capable of converting IR radiation into heat. The thermally reactive medium is contained within the chambers and is capable of changing volume in response to temperature changes.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: May 16, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joanna N. Ptasinski, Randy L. Shimabukuro, Stephen D. Russell
  • Patent number: 7009572
    Abstract: An improved tapered slot antenna. The structure includes a first antenna element, a second antenna element, a brace, a semi-infinite balun and a radome. The first and second antenna elements are operatively coupled to the brace in a tapered slot antenna configuration. The first and second input feed of the semi-infinite balun are operatively coupled to the first and second antenna elements, respectively, so that the second input feed is situated along substantially an entire length of a feed channel of the second antenna element. The radome is operatively coupled to the first and second antenna elements. A method for fabricating improved tapered slot antennas is also described.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: March 7, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert S. Homer, Bruce Calder
  • Patent number: 6998835
    Abstract: An electromagnetic sensor system. The system includes an electromagnetic excitable structure that generates an acoustic signal when irradiated with electromagnetic energy; an acoustic energy transducer sensor for generating a first output signal that represents the acoustic signal in response to the acoustic energy transducer detecting the acoustic signal; and a processor for determining whether the electromagnetic excitable structure is being irradiated by the electromagnetic energy in response to the processor receiving the first output signal.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: February 14, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David W. Brock, Narayan R. Joshi, Stephen D. Russell, Markham E. Lasher, Shannon D. Kasa
  • Patent number: 6995723
    Abstract: A wearable directional antenna. The system includes a clothing, a plurality of EM energy reflectors and a plurality of antenna elements. The clothing includes a non-conductive material. The plurality of EM energy reflectors is operatively coupled to the clothing and is capable of reflecting EM energy. The plurality of antenna elements is operatively coupled to the plurality of EM energy reflectors and is capable of receiving and transmitting EM energy in a specified direction.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: February 7, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard C. Adams
  • Patent number: 6993437
    Abstract: A method and apparatus for tidal seepage meters. The meter includes a power supply, controller, motor, selector valve, seepage chamber and at least two sample containers. The controller is operatively coupled to the power supply and is capable of controlling the power supply in accordance with a sampling schedule. The motor is operatively coupled to the power supply and is capable of receiving power from the power supply in accordance with the sampling schedule. The selector valve includes an input port and at least two outlet ports and is operatively coupled to the motor. The selector valve is capable of selecting an output valve in accordance with the sampling schedule. The seepage chamber is operatively coupled to the selector valve, capable of receiving seepage and inputting seepage to the selector valve via the input port. The sample containers are operatively coupled to the selector valve and receive seepage.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: January 31, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David B. Chadwick, Gregory Jon Groves, Andrew E. Patterson
  • Patent number: 6961657
    Abstract: A submarine launched expendable radio navigation system (SSXRN) buoy method and apparatus. According to one embodiment, a method for determining a submarine geographic position using a SSXRN buoy system is disclosed. The method comprising launching a radio navigation-enabled buoy and recording a launch time and DRNS submarine position. The method further comprises recording a buoy breach time and searching for radio navigation RF signals. Then, recording a radio navigation position acquisition time and an initial radio navigation position. Further, recording a subsequent radio navigation position data and a subsequent time. Moreover, determining a DRNS correction factor using a DRNS position error, a buoy drift, radio navigation position data and DRNS position data. In addition, estimating the submarine geographic position using the DRNS correction factor and a DRNS geographic position. In another embodiment, a SSXRN buoy system is disclosed.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: November 1, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert L. Wernli, Steven J. Cowen, Jimmy L. Held, Gerald R. Mackelburg, Donald M. Rosencrantz, Aaron R. Braun, Gary D. Murphy
  • Patent number: 6822522
    Abstract: A nonlinear oscillator method and apparatus. According to one embodiment, a nonlinear oscillator is closed. The nonlinear oscillator includes a first linear amplifier, a second linear amplifier and nonlinear amplifier having a substantially similar design that includes an adjustable linear transconductance region width. The input/output characteristics of the nonlinear oscillator can be represented by van der Pol equations. In another embodiment, a method for providing nonlinear oscillations is disclosed.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: November 23, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Edgar A. Brown, Joseph D. Neff, Steve P. DeWeerth, Paul Hasler, Brian Keith Meadows
  • Patent number: 6802132
    Abstract: A method for manufacturing an electrolytic tilt sensor comprises: a) forming sensing electrodes on a generally planar surface of a dielectric substrate; b) forming a reference electrode on the surface; c) mounting a housing to the substrate so that the sensing electrodes and the reference electrode are contiguous to a volume defined between the housing and the substrate; d) forming a fluid tight seal between the housing and the substrate; e) injecting an electrolytic fluid into the volume; f) sealing the electrolytic fluid in the volume; and g) forming an electrical circuit on the substrate for generating an output signal representing the angle of the dielectric substrate with respect to a gravitational field, wherein the electrical circuit includes an oscillator mounted on the surface.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: October 12, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Jack R. Olson
  • Patent number: 6800949
    Abstract: A fused silica substrate is processed to a thickness that allows it to be easily flexed. An opening is etched in the substrate. A die having a patterned topside is processed to the thickness of the substrate by lapping the die. The thinned die is positioned within the opening of the substrate. Non-conducting glass is then spun on top and backside surfaces of the die/substrate combination and is allowed to flow between the surfaces of the die and substrate. Conductive traces are constructed to provide electrical connection from the embedded die to the periphery of the enclosure for external electrical interconnect. The flexural properties of the thin fused silica (or equivalent) permit the enclosure to be arched and inserted into a printed circuit board without solder.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: October 5, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Carl W. Trautvetter