Navigation system and a route guidance data storage program
First Claim
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1. A navigation apparatus, comprising:
- a storage medium; and
a controller that;
defines a first search criterion concerning positional information of travel routes and a second search criterion concerning travel time, the travel time comprising at least one of a desired departure time and a desired arrival time;
searches for a route and route guidance data in accordance with the first search criterion and the second search criterion, the route and route guidance data searched based on navigation data stored outside the navigation apparatus; and
stores the route and route guidance data onto the storage medium;
wherein the route guidance data is less than all of the navigation data, and only includes route data concerning searched routes and time data within a predetermined guide time period such that a route may be re-searched based on the route guidance data at any time within the predetermined guide time period, the predetermined guide time period defined by at least one of the desired departure time and the desired arrival time.
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Abstract
A navigation system including a controller that defines a first search criterion concerning travel routes and a second search criterion concerning travel time, searches for a route in accordance with the first search criterion and the second search criterion, and stores route guidance data concerning a searched route onto a storage medium.
10 Citations
18 Claims
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1. A navigation apparatus, comprising:
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a storage medium; and
a controller that;
defines a first search criterion concerning positional information of travel routes and a second search criterion concerning travel time, the travel time comprising at least one of a desired departure time and a desired arrival time;
searches for a route and route guidance data in accordance with the first search criterion and the second search criterion, the route and route guidance data searched based on navigation data stored outside the navigation apparatus; and
stores the route and route guidance data onto the storage medium;
wherein the route guidance data is less than all of the navigation data, and only includes route data concerning searched routes and time data within a predetermined guide time period such that a route may be re-searched based on the route guidance data at any time within the predetermined guide time period, the predetermined guide time period defined by at least one of the desired departure time and the desired arrival time. - View Dependent Claims (2, 3, 4, 13, 14)
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5. A method for re-searching a route, comprising:
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defining a first search criterion concerning positional information of travel routes;
defining a second search criterion concerning travel time, the travel time comprising at least one of a desired departure time and a desired arrival time;
searching for a first route and route guidance data in accordance with the first search criterion and the second search criterion, the first route and route guidance data searched based on navigation data stored outside a navigation apparatus;
storing the route guidance data onto a storage medium inside the navigation apparatus;
re-defining at least one of the first search criterion and the second search criterion; and
searching a second route based on the first search criterion and the second search criterion using the route guidance data, at least one of the first search criterion and the second search criterion being re-defined;
wherein the route guidance data is less than all of the navigation data, and only includes route data concerning searched routes and time data within a predetermined guide time period such that the second route may be searched based on the route guidance data at any time within the predetermined guide time period, the predetermined guide time period defined by at least one of the desired departure time and the desired arrival time. - View Dependent Claims (6, 7, 15, 16)
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8. A route guidance data storage program, comprising:
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a routine that defines a first search criterion concerning positional information of travel routes and a second search criterion concerning travel time, the travel time comprising at least one of a desired departure time and a desired arrival time;
a routine that searches for a route and route guidance data according to the first search criterion and the second search criterion, the route and route guidance data searched based on navigation data stored outside a navigation apparatus; and
a routine that stores the route and route guidance data onto a storage medium inside the navigation apparatus;
wherein the route guidance data is less than all of the navigation data, and only includes route data concerning searched routes and time data within a predetermined guide time period such that a route may be re-searched based on the route guidance data at any time within the predetermined guide time period, the predetermined guide time period defined by at least one of the desired departure time and the desired arrival time.
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9. A program embedded in a recording medium or dedicated circuit, comprising:
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a subroutine that defines a first search criterion concerning positional information of travel routes;
a subroutine that defines a second search criterion concerning travel time, the travel time comprising at least one of a desired departure time and a desired arrival time;
a subroutine that searches a route and route guidance data according to the first search criterion and the second search criterion, the route and route guidance data searched based on navigation data stored outside a navigation apparatus; and
a subroutine that stores the route and route guidance data onto a storage medium inside the navigation aparatus;
wherein the route guidance data is less than all of the navigation data, and only includes route data concerning searched routes and time data within a predetermined guide time period such that a route may be re-searched based on the route guidance data at any time within the predetermined guide time period, the predetermined guide time period defined by at least one of the desired departure time and the desired arrival time. - View Dependent Claims (10)
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11. A navigation system, comprising:
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a storage medium; and
a controller that;
defines a first search criterion concerning positional information of travel routes and a second search criterion concerning travel time, the travel time comprising at least one of a desired departure time and a desired arrival time;
transmits the first search criterion and the second search criterion to an information center outside the navigation system, which searches for a route and route guidance data in accordance with the first search criterion and the second search criterion;
receives the route and the route guidance data from the information center; and
stores the route and the route guidance data concerning the searched route onto the storage medium;
wherein the route guidance data is less than all of the navigation data, and only includes route data concerning searched routes and time data within a predetermined guide time period such that a route may be re-searched based on the route guidance data at any time within the predetermined guide time period, the predetermined guide time period defined by at least one of the desired departure time and the desired arrival time. - View Dependent Claims (12, 17, 18)
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Specification