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Route planning method

  • US 20110282573A1
  • Filed: 05/12/2010
  • Published: 11/17/2011
  • Est. Priority Date: 05/12/2010
  • Status: Abandoned Application
First Claim
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1. A route planning method used with an electronic device and a GPS (global positioning system), said electronic device comprising a processor, a transmission interface, an I/O port and a storage unit, said electronic device being controllable to transmit signals to said GPS, said GPS comprising a CPU (central processing unit), a transmission interface, a storage unit, a display unit, a satellite positioning unit and an antenna, the route planning method comprising the steps of:

  • (A) Input the location data of a predetermined destination into said processor of said electronic device through the input/output port of said electronic device.(B) The processor of said electronic device produces a route planning data.(C) The processor of said electronic device compresses said route planning data by means of a route planning data compression algorithm, and then determines whether or not to transmit the compressed route planning data to said GPS, and then proceeds to step (E) when positive, or step (D) when negative.(D) The processor of said electronic device stores the compressed route planning data in the memory unit of said electronic device and ends the procedure.(E) The processor of said electronic device transmits the compressed route planning data to the transmission interface of said GPS through the transmission interface of said electronic device.(F) The CPU of said GPS stores the compressed route planning data in the storage unit of said GPS temporarily.(G) The satellite positioning unit of said GPS receives satellite signals by means of said antenna for enabling the CPU of said GPS to compute the current geographic coordinate data.(H) The CPU of said GPS drives said display unit to display the direction of the route, the time and distance required to reach to the destination.

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