×

NAVIGATION DEVICE

  • US 20100268453A1
  • Filed: 11/19/2008
  • Published: 10/21/2010
  • Est. Priority Date: 11/26/2007
  • Status: Abandoned Application
First Claim
Patent Images

1. A navigation device comprising:

  • position locating means for locating a position of a vehicle;

    speed measurement means for measuring a speed of the vehicle;

    audio output means for outputting a guidance voice related to a guide point on a guidance route leading to a destination; and

    control means for controlling output of the guidance voice by using as reference a reference point obtained by returning along the guidance route from the guide point by a prescribed reference distance,wherein the control means calculates an utterance start distance when the vehicle reaches a speed measurement point on the guidance route set with respect to the reference point, and causes the audio output means to output the guidance voice when the vehicle reaches an utterance start point obtained by returning along the guidance route from the guide point by the utterance start distance, andthe utterance start distance is longer than the reference distance, and increases as a duration of the guidance voice increases, and as the vehicle speed at the speed measurement point increases.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×