Patents by Inventor William L. Rubin

William L. Rubin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10669551
    Abstract: Disclosed herein are methods and compositions for targeted integration of an exogenous sequence into a predetermined target site in a plant genome.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: June 2, 2020
    Assignees: Dow AgroSciences LLC, Sangamo Therapeutics, Inc.
    Inventors: Qihua C. Cai, Jeffrey C. Miller, William M. Ainley, Robbi J. Garrison, Joseph F. Petolino, Beth C. Rubin-Wilson, Lisa L. Schulenberg, Andrew F. Worden
  • Patent number: 7394723
    Abstract: An Atmospheric Turbulence Detector utilizes a sensor to detect noise and extracts infrasound having frequencies below a specified infrasound frequency. A threshold is computed from the detection of infrasound in the vicinity of the sensor prior to the arrival of infrasound from the turbulence and an alarm is given when the infrasound from the turbulence are determined with the utilization of two sensors (6-1A, 6-1B), measuring amplitude differences of the infrasound detected at two seperate locations.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: July 1, 2008
    Inventor: William L. Rubin
  • Patent number: 6480142
    Abstract: A method and apparatus for measuring the parameters of atmospheric turbulent flows utilizes the Doppler shifted frequencies of received radar signals backscattered from sound generated aerodynamically by atmospheric turbulent flows. Doppler frequency bandwidths of the received backscattered signals are used to estimate the atmospheric flow turbulence and the mean frequency within a bandwidth is processed to estimate its radial flow velocity. Total flow velocity and the flow velocity angle with respect to the antenna boresight of the atmospheric turbulent flow may be estimated by estimating the radial flow velocity at two radial positions and processing these radial velocities. Processing of the Doppler data is initiated when the total signal power within the Doppler frequency band exceeds a predetermined power level.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: November 12, 2002
    Inventor: William L. Rubin
  • Patent number: 6275189
    Abstract: A passive target positioning system utilizes three stations positioned on a linear baseline with a central master station positioned predetermined distances from two slave stations. Angle to the target is determined from the time differences of arrival at the master station and each of the slave stations. Range to the target, in one embodiment, is determined from the difference of the two time difference of arrival measurements and the angle-to-target, while in a second embodiment from the time differences of arrival. A scannable antenna with frequency selection capability provides a spatial sector and frequency band selectivity.
    Type: Grant
    Filed: April 3, 1984
    Date of Patent: August 14, 2001
    Assignee: Lockheed Martin Corporation
    Inventor: William L. Rubin
  • Patent number: 5451961
    Abstract: Clutter reduction is accomplished by dividing the sampling times of received radar signals into blocks containing a plurality of sampling times. The average clutter value in each block is estimated by averaging the signal returns for the sampling times in the block. Block average clutter values are time positioned at a selected sampling time position in a block and a smooth function with continuous first and second derivatives is passed through the average clutter value points. In a preferred embodiment the smooth function is a cubic spline comprising third order polynomial segments between average clutter value points. Clutter values at the sampling points are extracted from the smooth function and respectively subtracted from the received radar signals. A clutter sensor examines the resulting radar signals for clutter distortion and eliminates radar signals that are not substantially clutter free.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: September 19, 1995
    Assignee: Unisys Corporation
    Inventors: William L. Rubin, Jeffrey J. Owenburg
  • Patent number: 5442359
    Abstract: A method and apparatus for resolving Doppler frequency shift ambiguities in pulse Doppler radar systems provides a radiated signal that is modulated with a periodic waveform having a plurality of pulses within a period, the interpulse intervals between pulses in the period being unequal. Radar target returns are autocorrelated for a plurality of lags, which may include the interpulse intervals and linear combinations thereof. The calculated arguments .theta..sub.Ci of the autocorrelation function are unwrapped by adding 2k.sub..pi., k=0, .+-.1, .+-.2, . . . , to the phase .theta..sub.C1 obtained for the shortest lag T.sub.1 and determining an integer m.sub.k2 from .vertline.(.theta..sub.C2 +2m.sub.k2 .pi.)-(T.sub.2 /T.sub.1).theta..sub.C1 .vertline. <.pi. and then setting .theta..sub.2 =.theta..sub.C2 +2m.sub.k2 .pi.. Phase angles .theta..sub.3, .theta..sub.4, . . . , .theta..sub.m are unwrapped in a similar manner, the integer m.sub.ki being determined from .vertline.(.theta..sub.Ci +2m.sub.ki .pi.)-(T.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: August 15, 1995
    Assignee: Unisys Corporation
    Inventor: William L. Rubin
  • Patent number: 5394155
    Abstract: A spectral moment estimator includes a first processor which processes signals representative of the magnitudes of complex autocorrelation functions of a signal at a plurality lags and provides Doppler spectral width representative signals and the autocorrelation function at zero lag independent of noise. A second processor, processes the complex autocorrelation representative signals, the complex autocorrelation functions phase angles representative signals, and the Doppler spectral width representative signals to provide the mean Doppler frequency of the the signal. The autocorrelation function phase angles are disambiguated and the unambiguous phase angles are least mean square error fitted to a third order odd polynomial, the linear term of which is the mean Doppler frequency of the signal.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: February 28, 1995
    Assignee: Unisys Corporation
    Inventors: William L. Rubin, John W. Davidsen
  • Patent number: 5384572
    Abstract: A portable test system is arranged to enable testing of an aircraft-mounted radar system. Simulated radar returns are transmitted via a test antenna positioned a short distance from an aircraft parked on an airport surface. The varying amplitude of received radar pulses is analyzed as the test antenna is illuminated by the main beam and side lobes of the radar antenna pattern as the radar beam is scanned. By controlling the amplitude of the simulated radar returns in inverse relation to the amplitude of received radar pulses, simulated radar returns inserted off beam center line are interpreted by the radar system as received on the beam center line. Test system transmissions, which may incorporate windshear effect test data, are thus enabled to create simulated effects usable for testing radar system response to a variety of airborne conditions, such as windshear. Test methods are also described.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: January 24, 1995
    Assignee: Republic Electronics Co.
    Inventors: John F. Michaels, William L. Rubin
  • Patent number: 5208600
    Abstract: A surveillance sensor for detecting and monitoring aerodynamic conditions in a vicinity of an aircraft landing glide slope utilizes a radar transmitter to illuminate the glide slope. Radar reflections from aircraft induced vortices, clear air turbulence, and glide slope cross winds are received by a monopulse radar system wherein a sum beam doppler spectrum and a difference beam doppler spectrum for the radar returns is determined. The sum and difference beams doppler spectra are processed to determine the aerodynamic conditions in the glide slope vicinity. These aerodynamic conditions are assessed to determine whether aerodynamic hazardous conditions exist in the glide slope region.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: May 4, 1993
    Inventor: William L. Rubin
  • Patent number: 5175551
    Abstract: A weather surveillance apparatus utilizes a set of beams in an elevation angular sector, one beam being offset from the other by a predetermined offset angle. Radar signal returns in each beam are processed to establish an average doppler frequency shift for the signals in the respective beams. An average of the averages and a difference of the averages are determined which are utilized to establish horizontal and vertical wind velocities. These velocities are further processed to determine whether a microburst precursor exists and the location, magnitude, time to impact, and track of any resulting windshear.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: December 29, 1992
    Assignee: Unisys Corporation
    Inventor: William L. Rubin
  • Patent number: 5130712
    Abstract: A microburst precursor detector utilizes a multiplicity of radar beams and samples radar returns, in each beam, from meterological radar signal reflectors and processes the signal returns in a statistical manner to determine average radar reflectivity and to extract doppler signal parameters. These parameters are utilized to determine a second set of parameters; average doppler frequency within each radar beam, doppler spectral spread within each radar beam, and the skewness of the doppler spectrum in each beam. The second set of parameters is processed to establish the existence of a microburst, predicted surface impact, time to impact, wind shear surface location and track, and the magnitude of the wind shear.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: July 14, 1992
    Assignee: Unisys Corporation
    Inventors: William L. Rubin, Carl H. Leyh
  • Patent number: 4443799
    Abstract: A spread spectrum radar apparatus wherein a plurality of carrier signals frequency modulated over predetermined time intervals and separated in frequency such that the spectra of the signals do not overlap are sequentially transmitted. Radar returns of this transmission sequence are coupled to a receiver which is frequency band activated in accordance with the transmission sequence and in a manner to minimize radar minimum detection range. Each radar echo is processed through a matched filter for pulse compression, delayed in accordance with the position of its transmitted signal, detected, and non-coherently summed with detections of returns from the same target of other interval transmissions.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: April 17, 1984
    Assignee: Sperry Corporation
    Inventor: William L. Rubin
  • Patent number: 4090067
    Abstract: An optical communication system is disclosed wherein a multiplicity of stations in a linear, random, or grid arrangement are coupled in a party-line type network in which optical signals originated by a master or responding station are relayed from station to station. Coupling between stations may be accomplished by means of optical lenses, the focal regions of which are coupled to electronic equipments that may be remotely located therefrom. This electronic equipment detects received optical signals, regenerates and retransmits these received optical signals, and originates a responding optical signal to the master station when the received optical signal is addressed to the receiving station.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: May 16, 1978
    Assignee: Sperry Rand Corporation
    Inventors: William W. Bell, III, Lamar Cox, William L. Rubin