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Position location using integrated services digital broadcasting—terrestrial (ISDB-T) broadcast television signals

  • US 6,952,182 B2
  • Filed: 11/08/2002
  • Issued: 10/04/2005
  • Est. Priority Date: 08/17/2001
  • Status: Expired due to Fees
First Claim
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1. A method for determining the position of a user terminal, comprising:

  • receiving at the user terminal a digital television (DTV) broadcast signal from a DTV transmitter, wherein the DTV signal comprises an Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) signal;

    determining a pseudo-range between the user terminal and the DTV transmitter based on a known component in the broadcast DTV signal; and

    determining a position of the user terminal based on the pseudo-range and a location of the DTV transmitter.

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