Sign text display method and apparatus for vehicle navigation sy

Details Sign text display method and apparatus for vehicle navigation sy Sign text display method and apparatus for vehicle navigation sy

1996-08-16

1999-07-20

Nguyen, Tan Q.

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

701201, 701209, 340990, 340995, G06F16500, G08G 1123

Patent

active

059250909

ABSTRACT:
In a vehicle navigation system, an improvement in the way sign text data is displayed. Sign text data stored in the system corresponds to road signs and is displayed for route guidance purposes. Along certain types of road segments, for instance freeway ramps where there are multiple signs in sequence and each sign is associated with a decision point at which the driver must decide which direction to take, a comparison is made between the content (the sign text) of the first sign and the last sign in the sequence. If any words or phrases coincide, only the content of the last sign is displayed at the point of the first sign. This simplifies the displayed sign text and provides better and more concise route guidance to the driver.

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