Patents Represented by Attorney, Agent or Law Firm Kyle Eppele
  • Patent number: 8350770
    Abstract: In one embodiment, the present invention provides a configurable ground plane for a matched antenna so that by configuring or changing the ground plane shape in a controlled manner, a change in the radiation pattern can be achieved such that the main beam of the antenna is steered in a particular direction, and a null in another direction. According to one aspect of the present invention, antennas such as monopole or patch antennas with a configurable ground plane of the present invention with a plurality of configurable sectors can be made to change in shape, size and conductivity. Such ground plane modifications can be used to select the direction of maximum gain away from a direction of interference, such in the case of tactical jamming. Likewise, the ground plane modifications can be used to steer the maximum directivity of an antenna in a desired direction for increased signal integrity.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: January 8, 2013
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: David C. Dawson
  • Patent number: 8340582
    Abstract: A method of distinguishing center-frequency-tuned signals from off-tuned signals and noise in a single-channel receiver, comprising: receiving a signal with the single-channel receiver; storing the signal in a memory store; calculating the variance of a time-windowed segment of the signal; storing data representing the variance of the segment in the memory store; calculating the kurtosis of the segment of the signal; storing data representing the kurtosis of the segment in the memory store; comparing the variance data and the kurtosis data to variance and kurtosis thresholds respectively; identifying the segment as center-frequency-tuned if the variance of the segment exceeds the variance threshold and the kurtosis falls below the kurtosis threshold; and identifying the segment as non-center-frequency-tuned if the variance of the segment is less than or equal to the variance threshold and/or the kurtosis is greater than or equal to the kurtosis threshold.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: December 25, 2012
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Kyle E. Kowalske, Charles S. Bendall
  • Patent number: 8315958
    Abstract: The underlying objective of this invention is to show how fuzzy sets (and information granules in general) and grammatical inference play an interdependent role in information granularization and knowledge-based problem characterization. The bottom-up organization of the material starts with a concept and selected techniques of data compactification which involves information granulation and gives rise to higher order constructs (type-2 fuzzy sets). The detailed algorithmic investigations are provided. In the sequel, we focus on Computing with Words (CW), which in this context is treated as a general paradigm of processing information granules. We elaborate on a role of randomization and offer a detailed example illustrating the essence of the granular constructs along with the grammatical aspects of the processing.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: November 20, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stuart Rubin, Witold Pedrycz
  • Patent number: 8311752
    Abstract: A method for quantifying the effective loss of a mast-clamp-current-probe (MCCP) antenna comprising the following steps: providing a vector network analyzer (VNA) having first and second ports (Ports 1 and 2 respectively); coupling a transmit monopole antenna to Port 1 via a first transmission line; coupling a receive antenna to Port 2 via a second transmission line; determining the S-parameters of the two coupled antennas; calculating the power at the receive antenna (Pr); converting the transmit antenna to the MCCP antenna by shorting the transmit antenna to ground and clamping a current probe around the transmit antenna; determining the S?-parameters of the MCCP antenna and the receive antenna; calculating the power at the receive antenna (Pr?) when coupled to the MCCP antenna; and quantifying the effective loss of the MCCP antenna as the difference Pr?Pr?.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 13, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Daniel W. Tam, Peder M. Hansen, Daniel R. Gaytan
  • Patent number: 8291567
    Abstract: In one embodiment, the present invention provides a method for forming battery tray for holding cylindrical cell batteries. The method includes forming a battery try including a base support having a generally flat bottom surface and multiple adjacent cylindrical cavities are formed within the base support, using a circle packing algorithm to form the cylindrical cavities. The adjacent cavities each have at least some interstitial cylindrical riser wall structures formed with a predetermined height to hold the cylindrical cell batteries. In another embodiment, the present invention allows for packing maximum energy density per layer. This allows lifetime and power output of a battery powered device to be optimized and/or increased.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: October 23, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Timothy James Keenan, Joshua Bianchi
  • Patent number: 8285217
    Abstract: A circulator-enabled signals suppressor (CENSOR) for reducing co-site interference comprising: a first circulator comprising first, second, and third ports, wherein the first port is disposed to receive an incoming signal from an antenna, wherein the incoming signal comprises a desired signal and an interference signal; a first reflective, tunable bandpass filter-bank operatively coupled to the second port, disposed to reflect a reflected signal back into the second port and also to produce a filtered signal, wherein the reflected signal comprises the desired signal and a reflected portion of the interference signal, and the filtered signal comprises a majority portion of the interference signal; and a receiver operatively coupled to the third port and disposed to receive the reflected signal.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: October 9, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John W. Rockway, Karl Moeller, Jeffrey L. Young
  • Patent number: 8285728
    Abstract: The present invention enables the construction and deployment of semantic search engines, which learn. Here, the learning necessarily occurs in unsupervised mode given the huge amount of text being searched and the resultant impracticality of providing human feedback. That is, it acquires a lexicon of synonyms and the context for their proper application by searching a moving window of text and compiling the results. No human operator is involved. This allows for the practical search, using machine learning techniques, of very large textual bases.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: October 9, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Stuart Rubin
  • Patent number: 8250022
    Abstract: A new production generation method comprising: a.) storing a list of productions on a memory store on a computer, wherein each production comprises a context and a consequent, each context and consequent comprising at least one feature; b.) searching the production list for productions with contexts that match a user-provided context; and c.) if no context-matching production is found, i.) randomly selecting a sub-set of features from the user-provided context, ii.) selecting from the production list by uniform chance a first production with a context that matches the selected feature sub-set, iii.) substituting the feature or feature sub-set with the consequent of the first production to create a first feature set, iv.) replacing features in the first feature set as specified by predefined rules to create a new feature set, and v.) displaying a new production consisting of the user-provided context and the new feature set.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: August 21, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Stuart Harvey Rubin
  • Patent number: 8240602
    Abstract: A lighter than air (LTA) balloon and payload for the LTA balloon are stored on or in an underwater launcher. The launcher provides a source for a supply of a lighter than air gas, which is operatively connected to the LTA balloon until release. On deployment, the lighter than air gas is generated. The LTA balloon is deployed by activating the launcher to fill the LTA balloon and then releases the LTA balloon.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: August 14, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jeffrey M. Lloyd, Carol A. Becker, Brandon J. Wiedemeier, Jack Y. Dea, Rosteslaw M. Husar
  • Patent number: 8223339
    Abstract: A method for analyzing an optical signal comprising: directing the optical signal into a scanning spectrometer system comprising a variable-wavelength filter and a detector; continuously modulating the variable-wavelength filter at a given modulation frequency to produce a time-based waveform; measuring the time-based waveform with the detector; converting the time-based waveform into a frequency spectrum comprising harmonics of the modulation frequency; and comparing the harmonics of the modulation frequency to premeasured harmonic spectra in a reference database.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: July 17, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark Fralick, Richard Waters
  • Patent number: 8212569
    Abstract: An ambient electric field detector comprising: a collection mechanism disposed to generate a current signal in response to the ambient electric field; an input current mirror operatively coupled to the collection mechanism and disposed to amplify and duplicate the current signal to generate a duplicate signal; and an odd number (i) of at least three nonlinear, over-damped, bi-stable elements coupled uni-directionally in a ring such that the ring of elements oscillates, wherein at least one of the elements has a different initial state than the other elements and each element is disposed to receive the duplicate signal.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: July 3, 2012
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Visarath In, Norman Liu, Patrick Longhini, Yong (Andy) Kho, Joseph D. Neff, Adi R. Bulsara, Antonio Palacios
  • Patent number: 8207902
    Abstract: A broadband cage antenna about a mast of a vessel is described, containing a first plurality of wires aligned in a substantially vertical orientation and arranged circumferentially around the mast; a second plurality of wires aligned in a substantially horizontal orientation and placed around the mast, a first wire of the second plurality of wires joining, near a top portion of the mast, all the first plurality of wires, and a second wire of the second plurality of wires joining, near a bottom portion of the mast, all the first plurality of wires; and an antenna feed coupled to the second wire of the second plurality of wires, wherein the first and second plurality of wires are electrically insulated from the mast, to form a broadband antenna having a VSWR response of less than 4 over a designated frequency range.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: June 26, 2012
    Assignee: The United States of America as represented by the Secretary of Navy
    Inventor: Daniel W. S. Tam
  • Patent number: 8201773
    Abstract: A composite flexible and aerodynamic load bearing wing structure suitable for compact unmanned vehicles, is described. Flexible printed circuitry and micro fuel cells can be incorporated as, or part of, the flexible aerodynamic structure. Accordingly, the overall system configuration can be optimized with respect to weight, space and size requirements. The flexible aerodynamic structure for the unmanned vehicle may be configured with a flexible dielectric substrate having an electrical contact on at least one surface of the substrate, and a flexible printed circuit disposed upon the substrate. The printed circuit can flex with the substrate and the substrate, with the printed circuit, to form a load lifting aerodynamic wing configuration when unfolded from a folded position.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: June 19, 2012
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Jayson T. Durham, Joshua Blanchi
  • Patent number: 8188622
    Abstract: An energy harvester comprising: a substrate; two magnets coupled to the substrate in close proximity to each other with like magnetic poles facing each other creating a flux gap; a coil coupled to the substrate and disposed within the flux gap, wherein the coil and the magnets are coupled to the substrate such that substrate acceleration causes relative elastic motion between the magnets and the coil thereby exposing the coil to a changing magnetic flux; and a resonant frequency tuner coupled to the substrate and configured to adjust the resonant frequency between the coil and the magnets.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: May 29, 2012
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Richard Waters, Mark Fralick, Hugo Jazo, Brad Chisum
  • Patent number: 8178429
    Abstract: Fabrication of a semiconductor structure is achieved by using a Dip Pen Nanolithography (DPN) tip to apply a metal catalyst to a prepared substrate. The catalyst is applied in a predetermined pattern, and crystal growth is established at the catalyst site.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: May 15, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ryan P. Lu, Ayax D. Ramirez, Stephen D. Russell
  • Patent number: 8180875
    Abstract: A method of synchronizing clocks between local and remote unix-like computers comprising: sending internet control message protocol (ICMP) ping packets between at least two computers in a network; archiving ICMP echo-request and echo-reply packets from the networked computers in an archive file with an ICMP packet capture utility; including information in each echo-request sent from a local computer to a remote computer comprising: (1) the local time stamp of when the last echo-request from the remote computer was received at the local computer, and (2) the local time stamp of when the corresponding echo-reply was sent from the local computer; calculating an approximate clock offset between the networked computers based on the time stamps; and synchronizing the clocks of the networked computers based on the approximate clock offset of the computers.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: May 15, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Nikhil Daveā€², Albert K. Legaspl
  • Patent number: 8174325
    Abstract: The present invention provides an array of tunable, injection-locking oscillators which are scalable to higher frequencies and measure the entire relevant frequency space simultaneously. The scalable, highly-parallelized, adaptive receiver architecture uses arrays of tunable, injection-locking nonlinear oscillator rings for broad spectrum RF analysis. Three separate and different microelectronic circuit configurations, each having a different type of readout, are described. The embodiments are designed to be incorporated as a subsystem in any type of powered system in which a fast image of the broader spectrum is valuable, when no information about the location of signals in the frequency space is predictable or forthcoming.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 8, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Daniel Leung, Joseph Neff, Norman Liu, Visarath In
  • Patent number: 8169372
    Abstract: An antenna comprising: a first current probe comprising a core of ferromagnetic material having an aperture therein; a pump comprising a nozzle, wherein the pump is configured to pump a free-standing stream of electrolytic fluid out the nozzle and through the aperture such that the stream and the current probe are magnetically coupled; and a first transceiver operatively coupled to the current probe.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: May 1, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Daniel W. S. Tam
  • Patent number: 8164534
    Abstract: A multi-band antenna comprising a conductive structure and a plurality of current probes coupled around the conductive structure is disclosed. An existing antenna capable of generating H fields having a first signal line is converted into a multi-signal line antenna with increased frequency capabilities, by mounting a first current probe having a designated frequency range about a periphery of the existing antenna; coupling a second signal line to the first current probe; and performing at least one of transmitting and receiving via at least one of the first and second signal lines, wherein the mounting of the first current probe to the existing antenna improves a voltage standing wave ratio (VSWR) of the existing antenna and the second signal line operates as an independent signal line for signal reception/transmission within the designated frequency range.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: April 24, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Daniel W. S. Tam
  • Patent number: 8154438
    Abstract: The present invention can find the exact location anywhere in the nautical world (latitude/longitude coordinates) by correlating or matching radar returns with maps produced by a digital nautical chart called a Chart Server, because each pixel location on the Chart Server maps can be traced back to a latitude/longitude coordinate. An obstacle avoidance module called a Chart Server provides digital nautical charts to create a map of the world. To determine the current world location of a vehicle, the invention combines the Chart Server maps with a radar return, which also appears to display prominent features such as coastlines, buoys, piers and the like. These return features from the radar are correlated or matched with features found in the Chart Server maps. The radar then reports its current location inside of its local map, which when translated to the Chart Server map, correlates to a latitude/longitude registration location.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: April 10, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jacoby Larson, Michael Bruch