Method and apparatus for displaying guidance for navigation system
First Claim
1. A navigation system comprising:
- means for detecting a vehicle'"'"'s current position, including lane basis information;
means for storing maps and road networks, including lane data;
means for providing guidance information on lane basis to the vehicle driver, communicatively coupled with the means for storing maps and road networks and the means for detecting the vehicle'"'"'s current position;
means for generating a route, communicatively coupled with the means for providing guidance information through a bus; and
means for displaying the current position of the vehicle and the guidance information,wherein the means for providing guidance information is configured to match the vehicle'"'"'s current position with the maps and road networks on lane basis;
wherein the guidance information without a route is displayed when the vehicle is travelling on a road with multiple lanes, the guidance information including the road networks associated with another lane different from the lane which the vehicle is travelling on,wherein the guidance information without route is displayed with additional information as guide option icons,wherein the additional information comprises distance and complexity flags, and wherein the factor to determine the complexity includes;
freeway junction counts to destination, local street turn counts to destination, local street left turn versus right turn counts, and street and freeway junction counts.
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Accused Products
Abstract
This invention relates to a display method and apparatus in a navigation system. More specifically, this invention relates to a navigation-based method and apparatus to provide guidance information to a driver without repeatedly performing route recalculation when the driver makes slight deviation from the road he or she is travelling on. In one embodiment of the present invention, guidance information is displayed on a user interface without generating a route. For example, when a vehicle is travelling either on a freeway or a surface road, a distance indicator provides distance information to nearby freeway junctions or streets. In another embodiment, when the vehicle is deviated from a calculated route, a route deviation detecting unit may detect whether the vehicle is deviating from the calculated route to a predetermined extent. If not, the original calculated route will not be recalculated.
20 Citations
21 Claims
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1. A navigation system comprising:
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means for detecting a vehicle'"'"'s current position, including lane basis information; means for storing maps and road networks, including lane data; means for providing guidance information on lane basis to the vehicle driver, communicatively coupled with the means for storing maps and road networks and the means for detecting the vehicle'"'"'s current position; means for generating a route, communicatively coupled with the means for providing guidance information through a bus; and means for displaying the current position of the vehicle and the guidance information, wherein the means for providing guidance information is configured to match the vehicle'"'"'s current position with the maps and road networks on lane basis; wherein the guidance information without a route is displayed when the vehicle is travelling on a road with multiple lanes, the guidance information including the road networks associated with another lane different from the lane which the vehicle is travelling on, wherein the guidance information without route is displayed with additional information as guide option icons, wherein the additional information comprises distance and complexity flags, and wherein the factor to determine the complexity includes;
freeway junction counts to destination, local street turn counts to destination, local street left turn versus right turn counts, and street and freeway junction counts. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A guidance display method, comprising the following steps of:
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detecting a vehicle'"'"'s current position, including lane basis information; storing maps and road networks, including lane data; providing guidance information to the vehicle driver on a lane basis; and
displaying the current position of the vehicle and the guidance information, wherein a user interface displays the guidance information and the vehicle'"'"'s current position matching with the maps and road networks, without a route, wherein the guidance information without route is displayed with additional information as guide option icons,wherein the additional information comprises distance and complexity flags, and wherein the factor to determine the complexity includes;
freeway junction counts to destination, local street turn counts to destination, local street left turn versus right turn counts, and street and freeway junction counts. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A display apparatus for a navigation system comprising:
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a user interface; a vehicle position detecting unit to detect a vehicle'"'"'s current position; at least one database to store and provide maps and road networks, including lane data; and a guidance providing unit to provide guidance information to a driver on a lane basis, wherein the guidance providing unit is communicatively coupled with the database and the vehicle position detecting unit to match the vehicle'"'"'s current position with the lane data and display such information on the user interface without a route, wherein the guidance information without route is displayed with additional information as guide option icons, wherein the additional information comprises distance and complexity flags, and wherein the factor to determine the complexity includes;
freeway junction counts to destination, local street turn counts to destination, local street left turn versus right turn counts, and street and freeway junction counts. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification