Car navigation system
First Claim
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1. A car navigation system provided in a vehicle, the car navigation system comprising:
- a traffic-related information acquisition unit for acquiring traffic-related information about vehicular traffic;
a setting unit for setting a destination;
a route retrieval unit for retrieving a guidance route from a departure place to the set destination;
a route guidance unit for providing (i) route-related information about the retrieved guidance route using display guidance and audio guidance, and (ii) traffic-related information about the retrieved guidance route using display guidance and audio guidance when the traffic-related information about the retrieved guidance route is acquired by the traffic-related information acquisition unit;
a determination unit for determining whether or not part or all of sections in the retrieved guidance route is specific to an occupant of the vehicle; and
a route-related information editing unit for editing, of route-related information to be provided by the route guidance unit, route-related information about part or all of sections in the retrieved guidance route that is determined to be specific to the occupant, wherein the route guidance unit uses the edited route-related information to perform audio guidance for part or all of sections in the retrieved guidance route that is determined to be specific to the occupant.
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Abstract
A car navigation system changes from a normal guidance mode to a simplifying guidance mode when determining that part or all of sections in a guidance route is familiar or specific to an occupant. The simplifying guidance mode provides no audio guidance or simplified audio guidance with respect to route-related information compared to the normal guidance mode, while traffic-related information is provided using the same audio guidance as in the normal guidance mode.
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Citations
44 Claims
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1. A car navigation system provided in a vehicle, the car navigation system comprising:
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a traffic-related information acquisition unit for acquiring traffic-related information about vehicular traffic;
a setting unit for setting a destination;
a route retrieval unit for retrieving a guidance route from a departure place to the set destination;
a route guidance unit for providing (i) route-related information about the retrieved guidance route using display guidance and audio guidance, and (ii) traffic-related information about the retrieved guidance route using display guidance and audio guidance when the traffic-related information about the retrieved guidance route is acquired by the traffic-related information acquisition unit;
a determination unit for determining whether or not part or all of sections in the retrieved guidance route is specific to an occupant of the vehicle; and
a route-related information editing unit for editing, of route-related information to be provided by the route guidance unit, route-related information about part or all of sections in the retrieved guidance route that is determined to be specific to the occupant, wherein the route guidance unit uses the edited route-related information to perform audio guidance for part or all of sections in the retrieved guidance route that is determined to be specific to the occupant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A car navigation system provided in a vehicle, the car navigation system comprising:
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a traffic-related information acquisition unit for acquiring traffic-related information about vehicular traffic;
a setting unit for setting a destination;
a route retrieval unit for retrieving a guidance route from a departure place to the set destination;
a route guidance unit for providing (i) route-related information about the retrieved guidance route using display guidance and audio guidance, and (ii) traffic-related information about the retrieved guidance route using display guidance and audio guidance when the traffic-related information about the retrieved guidance route is acquired by the traffic-related information acquisition unit;
a determination unit for determining whether or not part or all of sections in the retrieved guidance route is specific to an occupant of the vehicle; and
a route-related information creating unit for creating route-related information about part or all of sections in the retrieved guidance route that is determined to be specific to the occupant, wherein the route guidance unit uses the created route-related information to perform audio guidance for part or all of sections in the retrieved guidance route that is determined to be specific to the occupant. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A car navigation system provided in a vehicle, the car navigation system comprising:
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a traffic-related information acquisition unit for acquiring traffic-related information about vehicular traffic;
a setting unit for setting a destination;
a route retrieval unit for retrieving a guidance route from a departure place to the set destination;
a route guidance unit for providing (i) route-related information about the retrieved guidance route, and (ii) traffic-related information about the retrieved guidance route when the traffic-related information about the retrieved guidance route is acquired by the traffic-related information acquisition unit; and
a guidance mode selection unit for selecting one of two guidance modes of a normal mode and an audio route guidance simplifying and omitting mode, wherein the normal mode provides both traffic-related information and route-related information using both display guidance and audio guidance, and wherein the audio route guidance simplifying and omitting mode provides (i) traffic-related information using both display guidance and audio guidance, and (ii) route-related information only using display guidance or using the display guidance and audio guidance that is simpler than the audio guidance used in the normal mode with respect to the route-related information, and wherein the route guidance unit performs guidance according to a guidance mode selected by the guidance mode selection unit. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A car navigation system provided in a vehicle, the car navigation system comprising:
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a traffic-related information acquisition unit for acquiring traffic-related information about vehicular traffic;
a setting unit for setting a destination;
a route retrieval unit for retrieving a guidance route from a departure place to the set destination;
a route guidance unit for providing (i) route-related information about the retrieved guidance route using display guidance and audio guidance, and (ii) traffic-related information about the retrieved guidance route using display guidance and audio guidance when the traffic-related information about the retrieved guidance route is acquired by the traffic-related information acquisition unit;
a determination unit for determining whether or not part or all of sections in the retrieved guidance route is specific to an occupant of the vehicle; and
a route-related information simplifying unit for simplifying route-related information about part or all of sections in the guidance route that is determined to be specific to the occupant, wherein the route guidance unit uses the simplified route-related information to perform audio guidance at least for part or all of sections in the retrieved guidance route that is determined to be specific to the occupant. - View Dependent Claims (42, 43)
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44. A method for a navigation system provided in a vehicle, the navigation system including:
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a traffic-related information acquisition unit for acquiring traffic-related information about vehicular traffic; and
a setting unit for setting a destination, the method comprising;
retrieving a guidance route from a departure place to the set destination;
providing (i) route-related information about the retrieved guidance route using display guidance and audio guidance, and (ii) traffic-related information about the retrieved guidance route using display guidance and audio guidance when the traffic-related information about the retrieved guidance route is acquired by the traffic-related information acquisition unit;
determining whether or not part or all of sections in the retrieved guidance route is specific to an occupant of the vehicle; and
simplifying route-related information about part or all of sections in the guidance route that is determined to be specific to the occupant, wherein the simplified route-related information is used to perform audio guidance at least for part or all of sections in the retrieved guidance route that is determined to be specific to the occupant.
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Specification