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Navigation system

  • US 6,046,688 A
  • Filed: 12/02/1997
  • Issued: 04/04/2000
  • Est. Priority Date: 12/11/1996
  • Status: Expired due to Fees
First Claim
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1. A location system for an automotive main vehicle comprisinga navigation device including a global positioning system receiving unit, a navigation unit containing pictorial map data in communication with said receiving unit, a first display unit for displaying a position of said main vehicle and at least some of said pictorial map data;

  • a main vehicle system including a transceiver for receiving position indicating signals transmitted from a signal source of an automotive related vehicle said transceiver being separate from said global positioning system receiving unit, a control unit connected to said navigation unit and said transceiver for computing a position of said related vehicle relative to said main vehicle in accordance with said position indicating signals from said signal source of said related vehicle, and a second display unit, separate from said first display unit, for displaying a position of said related vehicle relative to said main vehicle, said second display includes at least some of said map data.

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