Patents Assigned to Lockhead Martin Corporation
  • Patent number: 10095008
    Abstract: A lens assembly includes a housing defining an interior volume having a substantially linear optical axis extending therethrough. A zoom group is disposed in the housing in an optical path segment on the optical path between a first lens and an aperture mechanism. The zoom group is movable between a plurality of field-of-view (FOV) positions along the optical path segment. An ultra-narrow field-of-view (UNFOV) lens group is movable between a first UNFOV position outside the optical path and a second UNFOV position in the optical path segment. The lens assembly has a plurality of FOV configurations with the UNFOV lens group in the first UNFOV position, and a UNFOV configuration with the UNFOV lens group in the second UNFOV position. The lens assembly accommodates a number of different FOVs within a limited volume with a small number of lenses, and without folding or otherwise redirecting the optical path.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: October 9, 2018
    Assignee: Lockhead Martin Corporation
    Inventor: James A. Fry
  • Patent number: 9147283
    Abstract: Water surface visualization during a simulation is disclosed. Elevation data that identifies an elevation of a water surface is accessed. Based on the elevation data, it is determined that a camera view location of a camera view is on a first side of a water surface. Object data is accessed that identifies a location comprising an elevation of each of a plurality of objects in the scene. An organization of a plurality of objects for rendering is determined based on the elevation of each object of the plurality of objects relative to the water surface. The water surface scene portion is rendered based on the organization.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: September 29, 2015
    Assignee: Lockhead Martin Corporation
    Inventors: Sean R. McVey, Howell B. Hollis
  • Patent number: 8851786
    Abstract: A reversible sealing mechanism for sealing a bulkhead having a first central aperture defined along a central axis and disposed between first and second compartments includes a cover member having a recess defined therein by a substantially cylindrical sidewall and adapted to cover the first central aperture. A wedge ring having a generally cylindrical body is accommodated by the first and second central apertures and is configured to operatively engage the cover member. A mechanical input is operative to reversibly rotate the wedge ring about the central axis such that a rotation of the wedge ring in a first direction urges the cover member in the axial direction into a sealed position.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: October 7, 2014
    Assignee: Lockhead Martin Corporation
    Inventors: John Snediker, Daniel Skurdal
  • Patent number: 8164533
    Abstract: A horn antenna includes smooth-walls with multiple slope discontinuities. The horn antenna may have more than an octave bandwidth with a 2.25:1 bandwidth ratio to cover the frequencies of 20 GHz, 30 GHz, and 45 GHz, or all the desired bands for military or other communications.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: April 24, 2012
    Assignee: Lockhead Martin Corporation
    Inventors: Chih-Chien Hsu, Sudhakar K. Rao
  • Patent number: 8081381
    Abstract: The present invention is a time division multiplexed beam combination for laser signal generation. In one aspect, the time division multiplexed beam combination employs a mechanical implementation. In a second aspect, the time division multiplexed beam combination employ a polarization interlacing.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: December 20, 2011
    Assignee: Lockhead Martin Corporation
    Inventor: Nicholas J. Krasutsky
  • Patent number: 8036994
    Abstract: Provided is a method of reducing postal revenue losses associated with the processing and delivery of international mail pieces. Algorithmically-resolved image data associated with a mail piece is compared to international-mail-services postage data and a determination is rendered, based on the comparison, as to whether any postage indicated as paid is sufficient to further process the mail piece in accordance with the level of delivery service requested. In various aspects, an attempt to algorithmically ascertain the identity of the sender is undertaken for purposes of automated charge assessment relative to a mail piece for which it is determined that insufficient postage has been tendered. In accordance with alternative aspects, if the sender identity cannot be ascertained, the mail piece is variously (i) rejected for manual handling or (ii) routed for automated sortation and delivery in accordance with a “downgraded” delivery service level for which the amount paid is adequate.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: October 11, 2011
    Assignee: Lockhead Martin Corporation
    Inventors: Russell Elliot, Audrey Ferry, Jeffrey S. Poulin, Linda H. Rockwood
  • Patent number: 7836549
    Abstract: A hinge providing multi-directional motion to a hinged object. In one embodiment, the hinge includes a first hinge member having at least one first outwardly-protruding mounting projection and a second hinge member defining a recess for movably receiving the projection. In one embodiment, the recess and mounting projection are complementary configured for non-rotational linear movement of the projection in a first portion of the recess, and for rotational movement of the projection in a second portion of the recess. A preferred embodiment includes a pair of spaced-apart recesses and projections. The hinged object may be squarely slid into engagement with a supporting unit or frame via the first portion of the recess, yet rotated or pivoted via the second portion to provide access to the supporting unit. The supporting unit or frame in one embodiment may be part of a module in an active antenna array.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: November 23, 2010
    Assignee: Lockhead Martin Corporation
    Inventor: Thomas E. McGuigan
  • Patent number: 7742620
    Abstract: A method for identifying potential targets as far away as possible is disclosed. In a simple background scene such as a blue sky, a target may be recognized from a relatively long distance, but for some high clutter situations such as mountains and cities, the detection range is severely reduced. The background clutter may also be non-stationary further complicating the detection of a target. To solve these problems, target detection (recognition) of the present invention is based upon temporal fusion (integration) of sensor data using pre-detection or post-detection integration techniques, instead of using the prior art technique of fusing data from only a single time frame. Also disclosed are double-thresholding and reversed-thresholding techniques which further enhance target detection and avoid the shortcomings of the traditional constant false alarm rate (CFAR) thresholding technique.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: June 22, 2010
    Assignee: Lockhead Martin Corporation
    Inventors: Hai-Wen Chen, Teresa L. Olson, Surachai Sutha
  • Patent number: 7669706
    Abstract: A device and method for sequencing trays includes a tray receiving conveyor and a recirculating conveyor. Trays are placed on the recirculating conveyor and merged with ejected trays into a multiple of sequenced trays at one or more merge locations. The system can include more than one merge location, with one of the merge locations providing a merge of trays into a contiguous sequence of trays.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: March 2, 2010
    Assignee: Lockhead Martin Corporation
    Inventors: Jason G. McLaughlin, Hajime Morikawa, Michael A. Wisniewski
  • Patent number: 7590090
    Abstract: A system comprises a processor configured to receive incoming data and configured to apply a subchannelizer algorithm to the received data. The subchannelizer algorithm segments the received data into time segmented data samples and distributes the time segmented data samples into a plurality of data streams for transmission across one of a plurality of interfaces to a network. The system further comprises a register generally coupled to the processor for storing each time segmented data sample prior to transmitting the time segmented data sample across the plurality of interfaces, wherein the time segmented data samples are written to the register at a first frequency and the time segmented data samples are read out of the register at a second frequency. The system is further arranged to receive a plurality of outgoing data streams from the network, and recombine the plurality of outgoing data streams for output to a downlink device.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: September 15, 2009
    Assignee: Lockhead Martin Corporation
    Inventor: William T. Horn
  • Publication number: 20090207696
    Abstract: An embodiment of the invention is directed to a hybrid geometry type acoustic transducer. A hybrid geometry type acoustic transducer as embodied herein leverages different type transducer physical configurations. More specifically, embodiments of the hybrid transducer combine specific features of traditional Tonpilz resonators and PZT-composite transducers to exploit the beneficial characteristics of both. The outward construction of an embodied hybrid transducer mimics a Tonpilz resonator incorporating a headmass and a tailmass sandwiching a piezoelectric active material. However, rather than using a conventional ceramic ring stack or plate form of active material, a layer of diced or “pillared” active material is provided between the headmass and the tailmass with no filler material other than a gas, such as air, for example, or others, or a vacuum environment.
    Type: Application
    Filed: December 4, 2006
    Publication date: August 20, 2009
    Applicant: Lockhead Martin Corporation
    Inventor: John H. Goodemote
  • Patent number: 7513455
    Abstract: A method for guiding an intercept vehicle to intercept a ballistic target includes conceptual setup of a line-of-sight (LOS) extending between the vehicles. The interceptor is accelerated in a direction perpendicular to the LOS until its velocity in that direction equals that of the target. At this time, the thrust of the interceptor accelerates it along the line-of-sight, thereby guaranteeing an intercept.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: April 7, 2009
    Assignee: Lockhead Martin Corporation
    Inventors: Peter J. Mavroudakis, Jeffrey B. Boka, Joseph T. Corso
  • Publication number: 20090033579
    Abstract: In some embodiments, a circularly polarized horn antenna may include a circular polarizer having a step shape. In some embodiments, a circularly polarized horn antenna may include a choke that is offset in position with respect to the antenna aperture. Such antennas may have a relatively constant beamwidth with respect to frequency, compact size, and/or low weight.
    Type: Application
    Filed: August 3, 2007
    Publication date: February 5, 2009
    Applicant: Lockhead Martin Corporation
    Inventor: Tommyhing-K H. Lam
  • Patent number: 7362223
    Abstract: A chemical, biological, radiological, and nuclear weapon detection system is disclosed that heightens its acuity and alertness when it senses that a chemical, biological, radiological, or nuclear weapon attack is more likely. For example, it is well understood that a chemical gas attack is likely to be less effective when it is raining than when it is clear because the rain will suppress and dilute the chemical agent. Therefore, the likelihood of a chemical gas attack is higher when it is clear. In light of this and similar knowledge, the illustrative embodiment checks for evidence of an attack more frequently and with great acuity than when the ambient environmental (e.g., meteorological, etc.) characteristics (e.g., whether is it precipitating or not, whether it is sunny or not, etc) suggest that an attack is more likely. This enables the embodiment to conserve consumables that are used in detecting attacks for when the attacks are more likely.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: April 22, 2008
    Assignee: Lockhead Martin Corporation
    Inventors: Scott M. Maurer, Mark J. Derksen, Robert H. Fleming, Kevin J. Kofler
  • Patent number: 7251345
    Abstract: An FFT correlation tracker that is capable of effectively tracking targets against non-uniform backgrounds in realtime, includes a background correction implemented using a FFT with the 2-dimension sinc function. The tracker tracks an object by effectively computing the first and third terms of the mean-square-error function C(s,t) defined as C ? ( s , t ) = 1 N ? ? N ? f 2 ? ( x , y ) + 1 N ? ? N ? g 2 ? ( x - s , y - t ) - 2 · 1 N ? ? N ? [ f ? ( x , y ) · g ? ( x - s , y - t ) ] This is done by first transforming the first and third terms into the frequency domain, where the first term, the background correction term, can be computed much more efficiently in real-time by using the 2-dimension sinc function. Multiplications and additions necessary to carry out the computations in the frequency domain are then performed.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: July 31, 2007
    Assignee: Lockhead Martin Corporation
    Inventor: Ruey-Yuan Han
  • Patent number: 7193578
    Abstract: A method for making a horn antenna array includes the steps of making first and second equal-size printed-circuit half-horn-elements, and offset-juxtaposing element pairs to make horn elements having a dielectric lip or step. A ground plane defining mutually intersecting crossed slot sets is loaded with horn elements with their lips interlocking near the slot crossings, to define the horn antenna array. The horn elements can be fed by pins extending through portions of the ground plane and into an aperture adjacent the feed elements of the horn elements. Electrical connections are made by fusion joining after the array is assembled.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: March 20, 2007
    Assignee: Lockhead Martin Corporation
    Inventors: Daniel W. Harris, Joseph W. Hahn
  • Patent number: 7183515
    Abstract: A plasma jet system includes a housing with an opening. A plasma generator is coupled to ionize a fluid in the housing. An electromagnetic accelerator is coupled to generate an electric field that accelerates ionized fluid in the housing toward the opening. A controller can modulate the frequency of the electric field to cause the ionized fluid to form a plasma vortex flow through the opening. A magnetic field is applied normal to the direction of the plasma vortex flow to mitigate the momentum of the electrons. The electrons slowed by the magnetic field can be collected and conducted to a location where they are re-inserted into the plasma vortex flow to maintain charge neutrality.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: February 27, 2007
    Assignee: Lockhead-Martin Corporation
    Inventors: Daniel N. Miller, Paul D. McClure, Charles J. Chase, Robert R. Boyd
  • Patent number: 7180447
    Abstract: A shared beamformer flexibly allocates beams among phased array antenna apertures of a satellite (or other type of platform). By sharing the beamformer among the apertures, if one aperture is not providing useful coverage (due to orientation, traffic volume, signal frequency, signal polarization, etc.), the beams may be reallocated to one or more other apertures that are providing useful coverage. To share the beamformer among the phased array antenna apertures, a selector network (e.g., one or more switches) is used to select which particular apertures are to send or receive signals.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: February 20, 2007
    Assignee: Lockhead Martin Corporation
    Inventor: Anthony W. Jacomb-Hood
  • Patent number: 7168381
    Abstract: In one aspect of the invention, a vessel has a liquid-plane greater than one meter2/(metric ton)2/3 and includes a hull having a total length and a plurality of hull portions each having a length that is less than the total length. Each hull portion buoys the vessel. Each hull portion also protrudes above the liquid-line and includes a wetted area that does not contact the wetted areas of other hull portions when the boat accelerates through Froude numbers between 0.4 and 0.6. In addition, each hull portion includes a cross-sectional area having a perimeter defined by the edge of the wetted area and having an area defined by a plane that intersects the hull portion at the perimeter. The vessel's liquid-plane is the sum of each hull portion's cross-sectional area divided by the cube root of the square of the weight of the boat is at least one.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: January 30, 2007
    Assignee: Lockhead Martin Corporation
    Inventors: Bruce Cobb, Terrence W. Schmidt
  • Patent number: 7135704
    Abstract: A VCSEL settling fixture provides for a plurality of VCSEL chip packages to be selectively tested within a burn-in or environmental chamber having a remote pendant controller. The settling fixture includes a mounting frame including a plurality of recesses and throughbores for positioning and aligning the VCSEL's on the mounting frame. The mounting frame further includes a plurality of terminal blocks in proximity to the recesses for interconnecting the mounting frame with the controller. An activation system including a plurality of electrical contacts electrically connects the individual VCSEL chip packages with the terminal blocks so that the controller can selectively trigger a laser output from the VCSEL chip package.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: November 14, 2006
    Assignee: Lockhead Martin Corporation
    Inventors: Robert J. Monson, Trevor J. McCollough, Jianhua (Jack) Yan