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Positioning system

  • US 20060187116A1
  • Filed: 02/03/2006
  • Published: 08/24/2006
  • Est. Priority Date: 02/04/2005
  • Status: Abandoned Application
First Claim
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1. A positioning system, asynchronous between communication base stations, having a communication base station capable of receiving a satellite signal that is a signal from a positioning satellite and a terminal capable of communicating with the communication base station, the communication base station comprising:

  • satellite-time information generating means for continuously generating satellite-time information representative of a satellite-time that is a time of the positioning satellites on the basis of the satellite signal;

    satellite-orbit information generating means for generating satellite-orbit information at a time interval regulated by an effective time period of the satellite-orbit information representative of an orbit of the positioning satellite when generating the satellite-time information;

    satellite-time information transmitting means for sending the satellite-time information to the terminal;

    positioning-auxiliary information transmitting means for sending positioning auxiliary information including the satellite-orbit information to the terminal; and

    the terminal comprising;

    satellite-time information acquiring means for acquiring the satellite-time information from the communication base station;

    positioning-auxiliary information acquiring means for acquiring the positioning auxiliary information from the communication base station; and

    positioning means for locating a position of the terminal on the basis of a plurality of the satellite signals from the positioning satellites by use of the satellite-time information and the satellite-orbit information.

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