Patents by Inventor Lee A. Barford

Lee A. Barford 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: 7436991
    Abstract: A system and method utilize data buffers and data access schedules to improve handling of captured image data of an object under inspection for tomosynthetically processing such captured image data to reconstruct desired cross-sectional images therefrom. One embodiment implements a data buffer communicatively coupled to a radiographic imaging system that allows for storage of captured radiographic image data for at least a portion of multiple different projections of an object under inspection, such as image data associated with one or more angles of view of one or more different regions of the object, and then later that stored data may be used for tomosynthetically reconstructing cross-sectional images for the object under inspection.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: October 14, 2008
    Assignee: Agilent Technologies, Inc.
    Inventors: Steven Greenbaum, Lee A. Barford, Stanley T. Jefferson
  • Publication number: 20080232249
    Abstract: A method of rank order filtering and a rank order filter apparatus is defined by an established rank order and accepts into a buffer, data points to be filtered, each data point having a data value and an associated time stamp. Data points are accepted until the buffer contains data points representing a minimum predefined time span. The filter calculating an amount of time the data values in the buffer are above an approximate filter value and adjusts the approximate filter value based upon the relationship of the amount of time to the rank order. The steps iterate to approach a value defined by the rank order and the approximate filtered value is output.
    Type: Application
    Filed: March 20, 2007
    Publication date: September 25, 2008
    Applicant: AGILENT TECHNOLOGIES, INC.
    Inventor: Lee A. Barford
  • Publication number: 20080181121
    Abstract: An apparatus for testing, measuring, and monitoring operation of a set of pieces of equipment, the apparatus comprises a topology network piggybacked on the set of pieces of equipment; and a controller, coupled to the topology network for communication over the network.
    Type: Application
    Filed: January 29, 2007
    Publication date: July 31, 2008
    Inventors: Lee A. Barford, Stanley T. Jefferson
  • Publication number: 20080178694
    Abstract: A movable sensor assembly has a resting position proximate to a top surface of an environment to be measured. The sensor assembly includes a sensor that measures an environmental parameter. A spool has an end of line connecting to the sensor. An actuator connects to the spool operative to extend and retract the line. A controller provides control information to the sensor and the actuator. The environmental parameter is selected from a group that includes light, chemical composition, air speed, air velocity, and sound.
    Type: Application
    Filed: January 25, 2007
    Publication date: July 31, 2008
    Inventors: Lee A. Barford, Lee H. Ng, Jefferson B. Burch
  • Publication number: 20080104163
    Abstract: A method for sampling includes selecting and sampling at uniform time steps over a collection time that is more than one period. Reordering the collected samples into “one period” and transforming the period from the time domain to the frequency domain.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 1, 2008
    Inventor: Lee A. Barford
  • Publication number: 20080103713
    Abstract: Labeling asymmetric network cables for improved network clock synchronization. Time asymmetries between pairs in a network cable are identified and associated with individual cables. This time asymmetry information is used to improve clock synchronization according to the IEEE-1588 standard. The time asymmetry information may be stored in a database and associated with a serial number on the cable, or may be associated with the cable in human and/or machine readable form.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventors: Lee A. Barford, Bruce Hamilton, Dietrich Werner Vook
  • Patent number: 7356443
    Abstract: Representative embodiments are directed to systems and methods for analyzing the selection of measurements of events associated with a communications network. In one embodiment, the selection of measurements includes creating a representation of a network. After the creation of the network representation, multiple sets of contemplated measurements associated with the network representation are created. A metric is calculated that is related to the respective diagnostic effectiveness for each set of contemplated measurements when the respective set of contemplated measurements is provided to a network diagnostic algorithm.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: April 8, 2008
    Assignee: Agilent Technologies, Inc.
    Inventor: Lee A. Barford
  • Publication number: 20070136410
    Abstract: A Finite Impulse Response (“FIR”) filter that uses an approximation of the time integral of the impulse response derived from data collected at non-uniform intervals and processes time-synchronized measurements taken at uneven intervals.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 14, 2007
    Inventor: Lee Barford
  • Patent number: 7230714
    Abstract: A nonlinear filtering system determines the duration of a designated event in an SPR sensorgram, selects a filter length based on the determined duration of the designated event in the SPR sensorgram, and applies a nonlinear filter, having the selected filter length to the SPR sensorgram, to establish an output signal.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: June 12, 2007
    Assignee: Agilent Technologies, Inc.
    Inventors: Lee A. Barford, Gregory D. VanWiggeren
  • Publication number: 20070112545
    Abstract: Random sampling within a bounded sample timing interval is used to acquire samples until a signal to noise ratio of an estimated spectrum from the acquired samples achieves a target signal to noise ratio.
    Type: Application
    Filed: November 15, 2005
    Publication date: May 17, 2007
    Inventor: Lee Barford
  • Publication number: 20070067167
    Abstract: A spectrum of a set of samples from a data stream of sampled data is estimated until a targeted signal to noise ratio is achieved.
    Type: Application
    Filed: September 16, 2005
    Publication date: March 22, 2007
    Inventor: Lee Barford
  • Publication number: 20070067378
    Abstract: A spectrum of a set of samples from a data stream of sampled data is estimated until a targeted signal to noise ratio is achieved.
    Type: Application
    Filed: November 15, 2005
    Publication date: March 22, 2007
    Inventor: Lee Barford
  • Patent number: 7139676
    Abstract: A method and a system evaluate an efficacy of a test suite in a model-based diagnostic testing system to determine a revision of the test suite. The evaluation comprises suggesting a test to be added to the test suite based on probabilities of a correct diagnosis and an incorrect diagnosis. The evaluation either alternatively or further comprises identifying a test to be deleted from the test suite based on probabilities of a correct diagnosis for the test suite and for a modified test suite that does not include a test. An efficacy value of each test in the test suite is computed. The system has a computer program comprising instructions that implement an evaluation of diagnostic efficacy of the test suite. The system either is a stand-alone system or is incorporated into the testing system.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: November 21, 2006
    Assignee: Agilent Technologies, Inc
    Inventor: Lee A. Barford
  • Publication number: 20060155411
    Abstract: The model-based method tests compliance of production devices with the performance specifications of a device design. The production devices are manufactured in accordance with the device design by a manufacturing process. In the method, a simple model form based on the device design and the performance specifications is developed, a stimulus for testing the production devices is specified and each production device is tested. The model form has a basis function and model form parameters for the basis function. The model form parameters are dependent on the manufacturing process and differ in value among the production devices. A production device is tested by measuring the response of the production device to the stimulus; extracting, using the model form, the values of the model form parameters for the production device from the measured response and the stimulus; and checking compliance of the production device with the performance specifications using the extracted values of the model form parameters.
    Type: Application
    Filed: April 4, 2005
    Publication date: July 13, 2006
    Inventors: Ajay Khoche, Nicholas Tufillaro, Stanley Jefferson, Lee Barford
  • Patent number: 7051240
    Abstract: Method for diagnosing data packet transfer faults in a system under test (SUT) are provided. A representative method includes: identifying at least some portions of the data transmission paths of the SUT capable of introducing errors in data packet transfer; providing constraints defining data packet transfer relationships of at least some of the portions of the data transmission paths; and diagnosing the SUT with respect to the constraints. Systems, computer-readable media and other methods also are provided.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: May 23, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Douglas R. Manley, Lee A. Barford
  • Publication number: 20060087656
    Abstract: A nonlinear filtering system determines the duration of a designated event in an SPR sensorgram, selects a filter length based on the determined duration of the designated event in the SPR sensorgram, and applies a nonlinear filter, having the selected filter length to the SPR sensorgram, to establish an output signal.
    Type: Application
    Filed: October 22, 2004
    Publication date: April 27, 2006
    Inventors: Lee Barford, Gregory VanWiggeren
  • Patent number: 7024600
    Abstract: Method for diagnosing faults in a system under test (SUT) are provided. A representative method includes identifying at least some portions of the data transmission paths of the SUT capable of introducing errors in data transfer; providing constraints defining relationships of at least some of the portions of the data transmission paths; and diagnosing the SUT with respect to the constraints. Systems, computer-readable media and other methods also are provided.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: April 4, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Douglas R. Manley, Lee A. Barford
  • Publication number: 20050138493
    Abstract: Representative embodiments are directed to systems and methods for analyzing the selection of measurements of events associated with a communications network. In one embodiment, the selection of measurements includes creating a representation of a network. After the creation of the network representation, multiple sets of contemplated measurements associated with the network representation are created. A metric is calculated that is related to the respective diagnostic effectiveness for each set of contemplated measurements when the respective set of contemplated measurements is provided to a network diagnostic algorithm.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Inventor: Lee Barford
  • Publication number: 20050097069
    Abstract: Optimizing tester performance using Operating Characteristics curves. By modeling the Operating Characteristics of classifiers used in testing systems, tester performance is optimized. Classifiers are constructed using sample data. Operating Characteristic curves for each classifier are constructed, each Operating Characteristics curve representing a design alternative. The Operating Characteristic curves are combined with cost models from which design decisions may be made.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 5, 2005
    Inventors: Jonathan Li, Lee Barford
  • Publication number: 20050047637
    Abstract: A system and method utilize data buffers and data access schedules to improve handling of captured image data of an object under inspection for tomosynthetically processing such captured image data to reconstruct desired cross-sectional images therefrom. One embodiment implements a data buffer communicatively coupled to a radiographic imaging system that allows for storage of captured radiographic image data for at least a portion of multiple different projections of an object under inspection, such as image data associated with one or more angles of view of one or more different regions of the object, and then later that stored data may be used for tomosynthetically reconstructing cross-sectional images for the object under inspection.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 3, 2005
    Inventors: Steven Greenbaum, Lee Barford, Stanley Jefferson