Patent ID: 6654024
Filing Date: 2003-11-25
Classification: B60K,B60Q,G01C,G08G,G09F,G09G

Abstract:
A method for displaying directional information in a vehicle navigation system comprising:(a) displaying a primary information symbol that identifies the current direction of travel of the vehicle; (b) illuminating the primary symbol to a preselected and constant level of brightness; (c) displaying a secondary information symbol that identifies a prospective change to be made in the current direction of travel by the vehicle when it reaches a preselected location; (d) initially illuminating the secondary symbol to a preselected level of brightness that is less than the level of brightness of the primary symbol; (e) progressively increasing the level of brightness of the secondary symbol from the initial level to a final level equivalent to that of the primary symbol as the vehicle approaches the location at which the prospective change in direction is to be effected; and (f) extinguishing both primary and secondary information symbols when the change in direction is effected and thereafter displaying a new primary information symbol.