Patents Represented by Attorney Law Offices of Thomas E. Schaatzel A Prof. Corp.

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  • Extended range high sensitivity SPS positioning receiver
    Patent number: 7498983
    Abstract: A roving extended range high sensitivity satellite positioning system receiver provides position fixes in adverse signal conditions as low as minus 150 dbm and with as few as three satellites by measuring the bit phase of the navData message and the codephase, and finding a simultaneous solution. Previous position fixes that were obtained in the vicinity by earlier rovers are deposited in an indexed database for consultation. A cellular phone system can be used to simply communicate the current identity codes and their database entries.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: March 3, 2009
    Assignee: eRide, Inc.
    Inventors: Paul W. McBurney, William J. Morrison, Justin A. Vandegrift, Kenneth U. Victa