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Positioning system using packet radio to determine position and to obtain information relative to a position

  • US 7,313,401 B2
  • Filed: 07/03/2001
  • Issued: 12/25/2007
  • Est. Priority Date: 05/09/1997
  • Status: Expired due to Term
First Claim
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1. A reference station for communicating with a positioning system and transmitting information about a position of the positioning system comprising:

  • a. means for communicating with the positioning system to obtain the position of the positioning system; and

    b. means for maintaining information coupled to the means for communicating for transmitting to the positioning system non-mapping information related to the position.

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