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Interruption-free hand-held positioning method and system thereof

  • US 6,415,223 B1
  • Filed: 11/29/2000
  • Issued: 07/02/2002
  • Est. Priority Date: 11/29/1999
  • Status: Expired due to Term
First Claim
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1. An interruption-free hand-held positioning system for a user on land, comprising:

  • a main IMU based interruption-free positioning module is utilized for sensing motion measurements of said user and producing interruption-free positioning data of said user;

    a positioning assistant providing interruptible positioning data to assist said main IMU based interruption-free positioning module to achieve an improved interruption-free positioning data of said user;

    a wireless communication device being built in for exchanging said improved interruption-free positioning data with other users;

    a map database providing map data to obtain a surrounding map information of location of said user by accessing said map database using said interruption-free positioning data; and

    a display device for visualizing said interruption-free positioning data of said user using said surrounding map information.

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