Patents Assigned to Rosum Corp.
  • Position location and data transmission using pseudo digital television transmitters
    Patent number: 6963306
    Abstract: A method, apparatus, and computer-readable media comprising generating a positioning signal comprising a first half-field and a second half-field; and transmitting the positioning signal; wherein each of the first and second half-fields comprises 313 segments; and wherein each of the segments comprises 832 chips comprising an American Television Standards Committee (ATSC) digital television (DTV) segment synchronization signal and a pseudonoise sequence.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: November 8, 2005
    Assignee: Rosum Corp.
    Inventor: James J. Spilker, Jr.