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Output control method of voice guidance signal in navigation system

  • US 7,840,348 B2
  • Filed: 10/21/2005
  • Issued: 11/23/2010
  • Est. Priority Date: 11/04/2004
  • Status: Active Grant
First Claim
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1. A method for controlling the output of a voice guidance signal in a navigation system, the method comprising:

  • searching for a travel route from a starting location to a destination of a vehicle;

    guiding the vehicle to travel along the searched travel route;

    determining a current vehicle location when the vehicle is traveling;

    searching for a target location to be guided that exists ahead of the traveling vehicle;

    generating a voice guidance signal for the searched target location;

    determining a priority according to a distance relationship between the current vehicle location and the searched target location and a specific characteristic of the searched target location;

    assigning the priority to the generated voice guidance signal in advance; and

    outputting the generated voice guidance signal in conflict with an output of a plurality of voice guidance signals when the generated voice guidance signal has a highest priority,wherein determining the priority comprises;

    designating a voice guidance signal for guiding arrival at a destination with a first priority;

    designating a last voice guidance signal issued just before the vehicle passes by a predetermined target location to be guided with a second priority when the predetermined target location to be guided is guided three times with voice guidance signals including initial, intermediate and last voice guidance signals;

    designating a voice guidance signal for guiding a dangerous area with a third priority;

    designating an initial or intermediate voice guidance signal for the predetermined target location to be guided with a fourth priority; and

    designating a voice guidance signal for guidance of a joining point, an entrance to a comfort stop, straight driving, or a registration area with a fifth priority.

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