NAVIGATION DEVICE
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
A navigation device is provided with which output of a guidance voice is completed at an appropriate timing with respect to a reference point related to output of the guidance voice. The navigation device of the present invention includes position locating means 9 for locating a position of a vehicle, speed measurement means 13 for measuring a speed of the vehicle, audio output means 15 and 17 for outputting a guidance voice related to a guide point N on a guidance route leading to a destination, and a control means 1 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. The control means 1, when the vehicle reaches an utterance start point obtained by returning along the guidance route from the guide point by an utterance start distance, causes the audio output means 15 and 17 to output the guidance voice. The utterance start distance is longer than the reference distance, and increases as an utterance time that is the duration of the guidance voice increases, and as the vehicle speed measured at the speed measurement point for the reference point increases.
-
Citations
14 Claims
-
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, and the 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 Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. 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 one or more guidance voices for a guide point on a guidance route leading from a start point to a destination; and control means for controlling output of the one or more guidance voices based on the position of the vehicle and the speed of the vehicle, wherein the one or more guidance voices are respectively related to one or more reference points on the side of the start point relative to the guide point on the guidance route, one or more speed measurement points are respectively set for the one or more reference points, on the side of the start point relative to the guide point, the control means, when the vehicle reaches each of the one or more speed measurement points, calculates an utterance start distance with use of the vehicle speed measured at the speed measurement point, and when the vehicle reaches an utterance start point obtained by returning along the guidance route from the guide point by the utterance start distance, causes the audio output means to output the guidance voice related to the reference point corresponding to the speed measurement point, and the utterance start distance is longer than the reference distance from the reference point corresponding to the speed measurement point that the vehicle has reached to the guide point along the guidance route, and increases as a duration of the guidance voice related to the reference point increases and as the measured vehicle speed increases. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
Specification