Patents Represented by Attorney Howard IP Law Group, P.C.
  • Patent number: 8305256
    Abstract: A radar system achieves unambiguous target range at a given PRI, in conjunction with unambiguous Doppler, by transmitting CW-LFM pulses and then separating the return signal into subpulses, without requiring any modifications to the transmit waveform. The CW-LFM pulses may be contiguous. The return signals are bandpass-filtered to generate the subpulses, and downconverted to a common frequency such as baseband. Each downconverted subpulse is matched-filtered to the FM slope, and the resulting matched-filtered subpulses are time-aligned. The time-aligned subpulses are Doppler-filtered to determine target velocity.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: November 6, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Arul Manickam, Gregory P. Fonder
  • Patent number: 8286521
    Abstract: An actuator assembly for remote actuation of control panel components in an environment that restricts human access is contemplated. The actuator assembly includes one or more remotely controllable linear drive mechanisms for imparting a rotation motion on one or more cams to remotely press a control panel component such as a button or switch. While disengaged, the cams are rotated to a position where they minimally obstruct an operator's view. The actuator assembly also allows the force and throw of actuation to be accurately controlled.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: October 16, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Timothy C. McIlroy, David J. Carta
  • Patent number: 8289857
    Abstract: The invention concerns the technical field of a so-called Path MTU (Maximum Transmission Unit) Discovery process between two computing nodes over packet switched networks. On the path between two hosts (H1, H2, H3) in the network may exist various hops, e.g. routers (R1, R2), a packet needs to pass. Each link between two hops has its own MTU which may differ on each link. Some path MTU discovery algorithms are based on sending probe packets with the DF (don't fragment) bit set in the IP header. However, security devices, e.g. firewalls, often block ICMP messages, including the ICMP error messages that are needed for these path MTU discovery algorithms to work. In order to deal with connections, on which ICMP messages are blocked within the network nodes, the invention relies on acknowledgements of probe packets with MTU sizes of common network technology based MTU values sent back by the destination host.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: October 16, 2012
    Assignee: TIXEL GmbH
    Inventors: Eduard Siemens, Daniel Eggert
  • Patent number: 8269665
    Abstract: Modern tactical radars frequently use phase shifters to electronically specify or steer the spatial position of the antenna beam without requiring mechanical motion of the antenna. These phase shifters can only be set correctly for a specific frequency. If a waveform is transmitted through the antenna which consists of multiple segments which differ in frequency or modulation from that frequency used to steer the position of the beam, errors are introduced into the monopulse measurement. These monopulse errors are reduced or eliminated by correction factors. The monopulse errors are corrected by pre-computed factors or terms which result from the differences in frequency and modulation used in the waveform from the frequency used to steer or position the beam. Correction is also provided for radar altitude. These correction factors are easily pre-computed and applied only when needed to minimize the computational requirements.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: September 18, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Harry Urkowitz, Robert A. Postell, Robert E. Lefferts
  • Patent number: 8270255
    Abstract: A system for measuring acoustic signature of a target object in water includes a plurality of rigid segments connected to each other to form a longitudinal member and a plurality of floats connected to the longitudinal member. Two buoys are connected at two ends of the longitudinal member and two weights are suspended from the buoys, thus making the longitudinal member neutrally buoyant when suspended in water. A plurality of hydrophones and an acoustic projector of a known source level are connected to the longitudinal member. The system further includes a data acquisition system for receiving signals from hydrophones and a signal processing means for processing signals received by data acquisition and determining acoustic signature of the target object. A depth/pressure sensor may be included. A pinger is located on the target object to measure range of target object to hydrophones. Range to target object is displayed in real time.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 18, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Joseph M. Cuschieri, Jason J. Orlando, Michael D. Wilt, Brian S. Tilton, Scott K. Wrieden, Alex D. Fiebel
  • Patent number: 8267033
    Abstract: An apparatus includes a housing and a ballast disposed within the housing. The ballast is adapted to receive, store and expel a fluid. A bladder is operatively coupled to the ballast wherein an increase in the volume of the bladder causes a decrease in the free volume of the ballast available for the storage of the fluid therewithin and a decrease in the volume of the bladder causes an increase in the free volume of the ballast available for the storage of the fluid therewithin. A heat exchanger has a heat exchange duct thermally coupled to the bladder and is adapted to receive a fluid from outside the housing. The bladder is configured to receive a clathrate.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: September 18, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Matthew Herbek, Matthew B. Ascari, John W. Rapp, Robert J. Howard
  • Patent number: 8269648
    Abstract: The invention provides for electromagnetic transmission and reception used in detecting relative changes associated with nano devices existing within an oil reservoir. The system enables monitoring of the relative movement of the nano devices in the oil and/or water over a given area based on the incremental or relative changes of the intensity of the reflections over time. In one embodiment, a source of electromagnetic energy from an array of antennae transmitting immediately in the far field recharges a power source embedded in the nano devices. In another embodiment, the return signals from the nano devices maps the morphology of ensembles of nano devices. In yet another embodiment the transmission controls the movement of the nano devices and controls the function preformed by the nano devices relative to effecting changes in the well to improve production of oil.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: September 18, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Vincent Benischek, Michael Currie
  • Patent number: 8264126
    Abstract: An impedance conversion layer useful for medical imaging ultrasonic transducers comprises a low impedance polymer layer and a high impedance metal layer. These layers are combined with corresponding thicknesses adapted to provide a function of converting from a specific high impedance to specific low impedance, wherein the polymer layer is at the high impedance side and the metal layer is at the low impedance side. The effective acoustic impedance of the polymer and metal layer combination may be adapted to configure an impedance converter in the same way as a quarter wavelength impedance converter, converting from low impedance to high impedance (metal to polymer) or from a high impedance to low impedance (polymer to metal). This structure may be used for front matching with the propagation medium and back matching with an absorber for ultrasonic transducers.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: September 11, 2012
    Assignee: Measurement Specialties, Inc.
    Inventors: Minoru Toda, Mitchell L. Thompson
  • Patent number: 8265901
    Abstract: A device for measuring and displaying body parameters includes a sensor that generates a signal representing a detected body parameter, such as body fat, body water and weight, of an individual; a transmitter to wirelessly transmit the signal; a receiver to receiver and display the sensed measurements as well as a user's name, time, date and temperature. The invention also pertains a method for determining fitness comprising the steps of: inputting, data pertaining to one of date, time, an individual's name, and fitness statistics, sensing parameters of one or more of an a body fat, a body a water and a weight; recording sensed parameters and said data; and transmitting the sensed parameters and said data; receiving said sensed parameters and said data and a signal proportional to a temperature and displaying one or more of said sensed parameters, data and temperature on a portable display unit.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: September 11, 2012
    Assignee: Measurement Ltd.
    Inventor: Steven Petrucelli
  • Patent number: 8264685
    Abstract: A device for measuring two components of an electromagnetic field in an analysis zone includes a light source for sending a polarized light beam into a polarization-maintaining optical fiber. The beam is directed along one axis of the fiber. An isotropic electrooptic material is placed in the zone for receiving the beam from the optical fiber via a substantially quarter-wave plate, which has its axes oriented at an angle of substantially 45° to the axes of the optical fiber and for sending a beam into the fiber. The plate is slightly detuned in regard to its characteristics or its orientation. The device further includes a phase-shifter for phase-shifting the beam sent into the fiber, wherein the phase-shifter is set so as to impose a phase shift equal and opposite to that imposed by the fiber and mechanism for analyzing the orientation and ellipticity of the wave exiting the phase-shifter.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: September 11, 2012
    Assignees: Institut National Polytechnique de Grenoble, Universite de Savoie
    Inventors: Lionel Duvillaret, Gwenaël Gaborit
  • Patent number: 8253621
    Abstract: A radar volume in a cued direction is searched with sequential pencil beams. The cued direction is subject to uncertainty in the form of covariance. The covariance defines an ellipse rotated relative to the azimuth axis. Before determining the extent of the acquisition face, the ellipse is projected onto a viewplane normal to the radar range axis, and rotated so the principal axes are parallel with the traverse and elevation directions. The acquisition face is then found. The number of beams required to scan the search volume is determined. In one embodiment, the search volume is sent to the radar, and the radar rotates the beams to their correct positions. The beams are then scheduled.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: August 28, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Mark A. Friesel
  • Patent number: 8242781
    Abstract: An array of electromagnetic receiver antennae is arranged and operated in conjunction with the operation of an array of far field electromagnetic transmitter antennae for mapping subsurface features of an existing well site reservoir. Mapping is performed according to the relative intensities, frequencies, phase shifts, and/or other reflected signal parameters of the reflections received by the receiver antennae (relative to the transmit signals) associated with a given location or target area within a reservoir so as to aid in determining the geological features about an oil deposit for an existing oil well.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: August 14, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Vincent Benischek, Michael Currie, Rajneeta Basantkumar, Gennady Lyasko
  • Patent number: 8243832
    Abstract: Space-time coding is applied to a wave transmitter, receiver, or both. In general, the space-time coding is performed by real or synthetic motion of the transmitter or receiver, with the location of energy radiation/reception varying over the symbol duration with at least one occurrence during the symbol duration of a minimum instantaneous speed greater than a quarter of the ratio of the smallest wavelength of the waves divided by the symbol duration, and with coded acceleration of the modification of location to modify the velocity over the symbol duration.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: August 14, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Marc Pierre Olivieri, Gregory Wayne Barnett, Randall Charles Poe, Jon Carmelo Russo
  • Patent number: 8232911
    Abstract: A method and system provide for confirmation of friendly aircraft as a backup to conventional IFF (identification, friend or foe) telecommunication systems and methods. An IFF secondary radar signal is generated and directed to an aircraft. When no confirming response is received within a pre-determined time period, the invention provides for generating and transmitting a pre-arranged modulated signal to the aircraft. In response to receiving the pre-arranged modulated signal, the aircraft notifies the aircrew to execute a pre-arranged kinematic maneuver that is detected by the systems using radar means to confirm that the aircraft is a friendly aircraft.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: July 31, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Richard N. Pedersen
  • Patent number: 8233975
    Abstract: A method for measuring an impedance of a body includes the steps of electrically coupling first and second electrodes to the body and electrically biasing a variable frequency relaxation oscillator. The oscillator has both a positive resistive feedback network and a negative feedback network which includes the electrodes. The method further includes a step of measuring the period of oscillation of the variable frequency oscillator. The measured period of oscillation is indicative of the impedance of the body.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: July 31, 2012
    Assignee: Measurement Ltd.
    Inventor: Steven Petrucelli
  • Patent number: 8230676
    Abstract: An exhaust system for an internal combustion engine, includes an exhaust line, an exhaust gas treatment device, an injection device arranged upstream from the exhaust gas treatment device for injecting a liquid educt into the exhaust line and a mixing and/or evaporation device for the sprayed educt situated downstream from the injection device and upstream from the exhaust gas treatment device. At least one section of the exhaust line carrying exhaust gas is formed by an exhaust pipe that has an end section arranged downstream from the injection device and upstream from the exhaust gas treatment device. The mixing and/or evaporation device is integrally formed on the end section of the exhaust pipe.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: July 31, 2012
    Assignee: J. Eberspaecher GmbH & Co., KG
    Inventor: Peter Harrer
  • Patent number: 8234321
    Abstract: A method for accelerating a pseudo-random input bit flow (PRBS(T1)), generated at a first relatively low dock frequency (f1), into an identical output bit flow (PRBS(T0)) at a second relatively high dock frequency (f0), comprising: collecting the output bit flow, delaying the collected flow by a predetermined value (?); and combining the delayed flow with the input bit flow.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: July 31, 2012
    Assignee: Centre National de la Recherche Scientifique
    Inventor: Guy Georges Aubin
  • Patent number: 8231833
    Abstract: A whispering gallery mode resonator based optical sensor assembly comprises a flow channel permeable to optical energy and first and second optical waveguides adjacent to a section of the flow channel and adapted to be in first and second evanescent field couplings respectively with the section such that the section forms a whispering gallery mode resonator. The resonator is responsive to an optical signal conveyed in the first optical waveguide and communicates a second optical signal to the second optical waveguide indicative of a resonance wavelength of the whispering gallery mode resonator. A detector optically coupled to the second optical waveguide detects the output signal. A signal processor detects a shift in the output signal responsive to an analyte fluid flowing through the flow channel. The shift is indicative of the identity of at least one constituent of the analyte fluid.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 31, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Scott Maurer, Stephanie Groves, Kee Koo
  • Patent number: 8234324
    Abstract: This invention relates to a process for producing a pulsed sampled waveform comprising generating a baseband signal representing the integral of a desired output waveform; sampling and differentiating the baseband signal to produce frequency images of the baseband spectrum at multiples of the sampling rate; employing an analog bandpass filter to pass the spectral image centered at the desired up-conversion frequency band. This invention also relates to an apparatus for creating a high frequency output waveform signal comprising a means for generating a baseband signal representing the integral of a desired output waveform; a means for sampling the baseband signal; a means for generating a time delayed baseband signal by ?t; a means for inverting the delayed baseband signal; a means for summing the inverted the delayed baseband signal with the sampled baseband signal; a means for filtering to pass the high frequency signal.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: July 31, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Byron W. Tietjen, Munroe C. Clayton
  • Patent number: 8220253
    Abstract: The invention relates to an exhaust gas after-treatment device for an internal combustion engine, including a housing into which an exhaust pipe that opens into a mixing chamber penetrates. The mixing chamber is shaped as a pot and reverses a direction of flow of the incoming exhaust gas whereby it returns the exhaust gas radially outside of the exhaust pipe. An open end of the pot-shaped mixing chamber opens into a collecting space which is designed so that it supplies the exhaust gas to at least one downstream SCR catalytic converter.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: July 17, 2012
    Assignee: J. Eberspaecher GmbH & Co., KG
    Inventors: Marcus Werni, Siegfried Woerner, Rudolf Buhmann, Rainer Lehnen