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Positioning device, method of controlling positioning device, program for controlling positioning device, and computer-readable recording medium having program for controlling positioning device recorded thereon

  • US 20070203647A1
  • Filed: 02/27/2007
  • Published: 08/30/2007
  • Est. Priority Date: 02/28/2006
  • Status: Abandoned Application
First Claim
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1. A positioning device which locates a position based on a satellite signal which is a signal from a positioning satellite, the positioning device comprising:

  • a determined position calculation section which calculates a determined position of the positioning device based on the satellite signal;

    a velocity calculation section which calculates moving velocity of the positioning device based on the satellite signal;

    an elapsed time evaluation section which determines whether or not time elapsed from last positioning is within an allowable time range specified in advance;

    a last velocity evaluation section which determines whether or not moving velocity during the last positioning is within a first velocity allowable range specified in advance;

    a current velocity evaluation section which determines whether or not current moving velocity is within a second velocity allowable range specified in advance;

    a stationary state determination section which determines whether or not a stationary state condition is satisfied in which the time elapsed from the last positioning is within the allowable time range, the moving velocity during the last positioning is within the first velocity allowable range, and the current moving velocity is within the second velocity allowable range;

    an average position calculation section which calculates an average position by averaging the determined position during the last positioning and the current determined position when the stationary state determination section has determined that the stationary state condition is satisfied; and

    a position output section which outputs the average position.

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