Patents by Inventor Craig A. Hanna

Craig A. Hanna 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: 8170135
    Abstract: A method is provided for coordinating detection of emitted signals by a receiver with transmission of signals by a transmitter, wherein the receiver and the transmitter are located on the same platform. The receiver scans a surrounding environment to detect emitted signals in multiple frequency ranges while the transmitter transmits signals in a predetermined frequency range. The receiver may employ dwells which may be defined as receiver configurations. A dwell, when executed, may be used to detect signals in a certain frequency range. If a frequency range of the dwell conflicts with the frequency range of transmitter signals, which may result in interference of transmitter signals with detection of emitted signals, execution of the dwell may be delayed. If the frequency range of the dwell is such that transmitter signals do not interfere with execution of the dwell, the dwell can be executed.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: May 1, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Craig A. Hanna, Anthony J. Gounalis, Robert Haefner
  • Publication number: 20080219322
    Abstract: A method is provided for coordinating detection of emitted signals by a receiver with transmission of signals by a transmitter, wherein the receiver and the transmitter are located on the same platform. The receiver scans a surrounding environment to detect emitted signals in multiple frequency ranges while the transmitter transmits signals in a predetermined frequency range. The receiver may employ dwells which may be defined as receiver configurations. A dwell, when executed, may be used to detect signals in a certain frequency range. If a frequency range of the dwell conflicts with the frequency range of transmitter signals, which may result in interference of transmitter signals with detection of emitted signals, execution of the dwell may be delayed. If the frequency range of the dwell is such that transmitter signals do not interfere with execution of the dwell, the dwell can be executed.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 11, 2008
    Applicant: Lockheed Martin Corporation
    Inventors: Craig A. Hanna, Anthony J. Gounalis, Robert Haefner
  • Patent number: 6867728
    Abstract: Signals-of-interest are identified by distinguishing such signals from signals constituting environmental or internal receiver noise. A received signal is rapidly sampled in order to set a dynamic, system threshold. Signals above the threshold constitute signals-of-interest.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: March 15, 2005
    Assignee: Lockheed Martin Corporation
    Inventors: Craig A. Hanna, James A. Johnson
  • Patent number: 4449119
    Abstract: Apparatus for generating clocking pulses from serially transmitted data in which a level shift recurs with each bit. The circuit uses a coincidence of data word recognition and initial level shift to generate an initial clock pulse and thereafter uses the delayed clock pulses and level shift to produce subsequent clock pulses. A data word recognition circuit is also disclosed that employs a delay line for examining the profile of a synchronizing wave form.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: May 15, 1984
    Assignee: International Business Machines Corporation
    Inventors: Craig A. Hanna, Edmund Lancki