Patents by Inventor Bruce A. Leidahl

Bruce A. Leidahl 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).

  • System and method for the correlation of multiple data feeds
    Patent number: 7382286
    Abstract: A method of receiving a first set of target data points from a first data feed and receiving a second set of target data points from a second data feed arrangement. Comparing a time variable included in the target data points from the first set to the time variable included in the target data points from the second set to determine time matched target data points and further comparing a second variable included in the time matched target data points from the first set to the second variable included in the corresponding time matched target data points from the second set to determine fully matched target data points. Combining the first set of target data points with the second set of target data points when the fully matched target data points satisfies a predetermined threshold.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: June 3, 2008
    Assignee: Megadata Corp.
    Inventors: James Cole, Robert Damis, John R. Keller, Bruce A. Leidahl
  • System and method for the correlation of multiple data feeds
    Publication number: 20050021221
    Abstract: A method of receiving a first set of target data points from a first data feed and receiving a second set of target data points from a second data feed arrangement. Comparing a time variable included in the target data points from the first set to the time variable included in the target data points from the second set to determine time matched target data points and further comparing a second variable included in the time matched target data points from the first set to the second variable included in the corresponding time matched target data points from the second set to determine fully matched target data points. Combining the first set of target data points with the second set of target data points when the fully matched target data points satisfies a predetermined threshold.
    Type: Application
    Filed: June 9, 2003
    Publication date: January 27, 2005
    Inventors: James Cole, Robert Damis, John Keller, Bruce Leidahl
  • Error correction of messages by passive radar system
    Publication number: 20040263380
    Abstract: Receiving a message including bits corresponding to an identifier, the identifier including a unique address for a aircraft transponder, extracting the unique address from the identifier, comparing the unique address to a set of predetermined addresses, changing selected ones of the identifier bits when the unique address is not one of the set of predetermined addresses, wherein the changing of the identifier bits changes a value of the unique address in the identifier, re-comparing the updated unique address to the set of predetermined addresses and processing the message when the unique address matches one of the set of predetermined addresses.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 30, 2004
    Inventors: James A. Cole, Robert Damis, Bruce A. Leidahl, John R. Keller
  • Error correction of messages by a passive radar system
    Patent number: 6778133
    Abstract: Receiving a message including bits corresponding to an identifier, the identifier including a unique address for a aircraft transponder, extracting the unique address from the identifier, comparing the unique address to a set of predetermined addresses, changing selected ones of the identifier bits when the unique address is not one of the set of predetermined addresses, wherein the changing of the identifier bits changes a value of the unique address in the identifier, read-comparing the updated unique address to the set of predetermined addresses and processing the message when the unique address matches one of the set of predetermined addresses.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: August 17, 2004
    Assignee: Megadata Corporation
    Inventors: James A. Cole, Robert Damis, Bruce A. Leidahl, John R. Keller