Navigation system
First Claim
1. A navigation apparatus in which signals transmitted from GPS satellites are received so as to measure a current location, the measured current location is displayed on a screen in connection with a map, a guidance route up to a destination place is set, and a guidance is notified every predetermined guidance point,wherein, in the case that the signals transmitted from the GPS satellites cannot be received, if a current location is located on said guidance route, then a virtual current location is displayed so that the virtual current location is moved on said guidance route at a predetermined velocity, and a guidance is notified every predetermined guidance point.
4 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed to a navigation apparatus capable of performing a proper voice guidance even in such a case that signals transmitted from GPS satellites cannot be received, but a current location cannot be judged. The navigation apparatus of the present invention is featured by such a navigation apparatus in which signals transmitted from GPS satellites are received so as to measure a current location, the measured current location is displayed on a screen in connection with a map, a guidance route up to a destination place is set, and a guidance is notified every predetermined guidance point. In this navigation apparatus, when the signals transmitted from the GPS satellites cannot be received, if a current location is located on the guidance route, then a virtual current location is displayed in such a manner that the virtual current location is moved on the guidance route at a predetermined speed, and a guidance is notified every predetermined guidance point.
-
Citations
9 Claims
-
1. A navigation apparatus in which signals transmitted from GPS satellites are received so as to measure a current location, the measured current location is displayed on a screen in connection with a map, a guidance route up to a destination place is set, and a guidance is notified every predetermined guidance point,
wherein, in the case that the signals transmitted from the GPS satellites cannot be received, if a current location is located on said guidance route, then a virtual current location is displayed so that the virtual current location is moved on said guidance route at a predetermined velocity, and a guidance is notified every predetermined guidance point.
-
2. A navigation apparatus in which signals transmitted from GPS satellites are received so as to measure a current location, the measured current location is displayed on a screen in connection with a map, a guidance route up to a destination place is set, and a guidance is notified every predetermined guidance point,
wherein, in the case that a starting point of a tunnel is detected as a current location, if the current location is located on said guidance route, then a virtual current location is displayed in such a manner that the virtual current location is moved on said guidance route at a predetermined speed, and a guidance is notified every predetermined guidance point.
-
4. A navigation apparatus comprising:
-
a receiver to receive signals transmitted from GPS satellites;
a processor to calculate a current location based on the GPS signals received from the receiver;
a screen coupled to the processor to display the current location in connection with a map and a guidance route up to a destination entered into the apparatus by a user; and
a circuit to notify a predetermined guidance point along the guidance route, wherein if the signals transmitted from the GPS satellites are interrupted and if the current location is located on said guidance route, then a virtual current location in the display is moved on said guidance route at a predetermined velocity while notifying every predetermined guidance point along the guidance route. - View Dependent Claims (5, 6, 7, 8, 9)
a CD driver for sending signals to display a map in connection with the current location calculated by the processor.
-
Specification