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Mobile GPS aiding data solution

  • US 7,495,609 B1
  • Filed: 11/07/2006
  • Issued: 02/24/2009
  • Est. Priority Date: 11/07/2006
  • Status: Expired due to Fees
First Claim
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1. A mobile GPS-aiding system, comprising:

  • a GPS reference receiver to collect GPS navigation messages;

    a GPS-aiding data network server to distribute over the Internet ephemeris and almanac data gleaned from said navigation messages;

    a number of commercial broadcast radio stations to publish such ephemeris and almanac data on particular sub-carriers;

    a number of vehicles equipped to receive radio broadcasts and said sub-carriers and to retransmit them locally via Bluetooth;

    at least one mobile, portable GPS receiver, for operation near any of the vehicles, and able to receive Bluetooth transmissions with the ephemeris and almanac data, together with the identity of the radio broadcast station then being tuned; and

    a breadcrumb database to index the locations of the radio broadcast stations.

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