Patents by Inventor James P. Dunyak

James P. Dunyak 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: 8218604
    Abstract: A receiver that provides interference cancellation in conjunction with RAKE processing. Signal parameters corresponding to each of a plurality of fingers corresponding to RAKE processing are maintained. Synthesized pilot signals are estimated using the signal parameters by interpolating waveforms for respective ones of the plurality of synthesized pilot signals to a common sampling lattice of the received set of data, and are then cancelled out. According to another aspect, a receiver ensures completion of a time-critical process such as signal demodulation and adaptively applies a non-time-critical process such as interference cancellation to the extent that computational resources become available subject to ensuring the completion of the time-critical process.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: July 10, 2012
    Assignee: The Mitre Corporation
    Inventors: Jerome M. Shapiro, James P. Dunyak
  • Publication number: 20100040035
    Abstract: A receiver that provides interference cancellation in conjunction with RAKE processing. Signal parameters corresponding to each of a plurality of fingers corresponding to RAKE processing are maintained. Synthesized pilot signals are estimated using the signal parameters by interpolating waveforms for respective ones of the plurality of synthesized pilot signals to a common sampling lattice of the received set of data, and are then cancelled out. According to another aspect, a receiver ensures completion of a time-critical process such as signal demodulation and adaptively applies a non-time-critical process such as interference cancellation to the extent that computational resources become available subject to ensuring the completion of the time-critical process.
    Type: Application
    Filed: October 23, 2009
    Publication date: February 18, 2010
    Applicant: The MITRE Corporation
    Inventors: Jerome M. Shapiro, James P. Dunyak
  • Patent number: 7627021
    Abstract: A receiver that provides interference cancellation in conjunction with RAKE processing. Signal parameters corresponding to each of a plurality of fingers corresponding to RAKE processing are maintained. Synthesized pilot signals are estimated using the signal parameters by interpolating waveforms for respective ones of the plurality of synthesized pilot signals to a common sampling lattice of the received set of data, and are then cancelled out. According to another aspect, a receiver ensures completion of a time-critical process such as signal demodulation and adaptively applies a non-time-critical process such as interference cancellation to the extent that computational resources become available subject to ensuring the completion of the time-critical process.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: December 1, 2009
    Assignee: The MITRE Corporation
    Inventors: Jerome M. Shapiro, James P. Dunyak
  • Patent number: 7505510
    Abstract: Reduction of multiple access interference, in one example for asynchronous CDMA systems using long codes. In one aspect, parallel interference cancellation (PIC) implements a decoupled estimate, preferably non-linear and applied at chip intervals. According to another aspect, interference is cancelled using a technique that estimates bits for a symbol by interpolating signature waveforms for users to a common sampling lattice of the received data. According to another aspect, multi-stage, hybrid multi-stage, and reconfigurable recursive multi-stage multi-user detection architectures and corresponding processes are provided.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: March 17, 2009
    Assignee: The Mitre Corporation
    Inventors: James P. Dunyak, John D. Fite, Jerome M. Shapiro
  • Patent number: 7474691
    Abstract: Reduction of multiple access interference, in one example for asynchronous CDMA systems using long codes. In one aspect, parallel interference cancellation (PIC) implements a decoupled estimate, preferably non-linear and applied at chip intervals. According to another aspect, interference is cancelled using a technique that estimates bits for a symbol by interpolating signature waveforms for users to a common sampling lattice of the received data. According to another aspect, multi-stage, hybrid multi-stage, and reconfigurable recursive multi-stage multi-user detection architectures and corresponding processes are provided.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: January 6, 2009
    Assignee: The Mitre Corporation
    Inventors: James P. Dunyak, John D. Fite, Jerome M. Shapiro
  • Patent number: 7099378
    Abstract: Reduction of multiple access interference, in one example for asynchronous CDMA systems using long codes. In one aspect, parallel interference cancellation (PIC) implements a decoupled estimate, preferably non-linear and applied at chip intervals. According to another aspect, interference is cancelled using a technique that estimates bits for a symbol by interpolating signature waveforms for users to a common sampling lattice of the received data. According to another aspect, multi-stage, hybrid multi-stage, and reconfigurable recursive multi-stage multi-user detection architectures and corresponding processes are provided.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: August 29, 2006
    Assignee: The MITRE Corporation
    Inventors: James P. Dunyak, John D. Fite, Jerome M. Shapiro