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Apparatus and method for displaying direction and position information of portable terminal

  • US 7,142,870 B2
  • Filed: 10/02/2002
  • Issued: 11/28/2006
  • Est. Priority Date: 11/21/2001
  • Status: Expired due to Fees
First Claim
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1. An apparatus for displaying direction and position information of a portable communication device having an RF transmission/reception unit for transmitting and receiving data between a base station and the portable communication device, comprising:

  • a base station having a processor for;

    receiving GPS position information from the portable communication device and calculating geographic position information corresponding to the received GPS position information; and

    transmitting to the portable communication device position information including corresponding virtual azimuth angle information, the position information corresponding to the geographic position information; and

    the portable communication device comprising;

    a sensor for detecting a compass direction of the portable terminal;

    a GPS receiver for receiving from at least one GPS satellite the GPS position information of the portable terminal;

    a control unit for;

    transmitting the received GPS position information to the base station;

    receiving the position information from the base station; and

    correcting the orientation of the position information using the virtual azimuth angle information and the compass direction; and

    a display unit for displaying corrected position information and the compass direction.

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