Navigation System And Portable Terminal
First Claim
1. A navigation system in which a navigation server searches for a route from a starting point to a destination on the basis of route search conditions input from a portable terminal, a guidance route is sent to the portable terminal, and the portable terminal displays the guidance route on display means, whereinthe navigation server comprises guidance data preparation means for preparing, based on the guidance route identified by the search, guidance route data including guidance points on the guidance route and guidance information relating to these guidance points,the portable terminal can operate at least in a driving mode and has current position detection means, distance calculation means, image formation means, and display means,the portable terminal, when operating in the driving mode, is devised so thatthe distance calculation means calculates the distance from the current position to the next guidance point on the basis of the current position detected by the current position detection means and guidance route data sent from the navigation server,the image formation means prepares a background image and a guidance image displayed by the display means on the basis of the guidance route data sent from the navigation server, and prepares an image in which the display colors of the background image are made into respectively different display colors in accordance with the distance calculated by the distance calculation means, andthe display means displays the images prepared by the image formation means.
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Accused Products
Abstract
A navigation system of communication type enabling the user to recognize necessary information instantly without watching the display screen and a portable terminal are provided. A navigation server 20 creates data on a guidance path including a guidance point on the guidance path and guidance information on the guidance point according to a sought guidance path and sends the data to a portable terminal 30. The portable terminal 30 has a drive operating mode. When the portable terminal 30 operates in the drive mode, distance calculating means 36 calculates the distance from the current position to the next guidance point from the current position detected by current position detecting means 35 and the guidance path data sent from the navigation server 20, image creating means 37 creates a background image and a guidance image displayed on display means, and creates and displays an image where the display color of the background image varies depending on the distance calculated by the distance calculating means 36.
70 Citations
12 Claims
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1. A navigation system in which a navigation server searches for a route from a starting point to a destination on the basis of route search conditions input from a portable terminal, a guidance route is sent to the portable terminal, and the portable terminal displays the guidance route on display means, wherein
the navigation server comprises guidance data preparation means for preparing, based on the guidance route identified by the search, guidance route data including guidance points on the guidance route and guidance information relating to these guidance points, the portable terminal can operate at least in a driving mode and has current position detection means, distance calculation means, image formation means, and display means, the portable terminal, when operating in the driving mode, is devised so that the distance calculation means calculates the distance from the current position to the next guidance point on the basis of the current position detected by the current position detection means and guidance route data sent from the navigation server, the image formation means prepares a background image and a guidance image displayed by the display means on the basis of the guidance route data sent from the navigation server, and prepares an image in which the display colors of the background image are made into respectively different display colors in accordance with the distance calculated by the distance calculation means, and the display means displays the images prepared by the image formation means.
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7. A portable terminal constituting a navigation system in which a navigation server searches for a route from a starting point to a destination on the basis of route search conditions input from a portable terminal;
- guidance route data including a guidance route, guidance points on the guidance route, and guidance information relating to these guidance points is sent to the portable terminal; and
the portable terminal displays the guidance route on a display means, whereinthe portable terminal can operate at least in a driving mode and has current position detection means, distance calculation means, image formation means, and display means, the portable terminal, when operating in the driving mode, is devised so that the distance calculation means calculates the distance from the current position to the next guidance point on the basis of the current position detected by the current position detection means and on the basis of the guidance route data sent from the navigation server, the image formation means prepares a background image and a guidance image displayed by the display means on the basis of the guidance route data sent from the navigation server, and prepares an image in which the display colors of the background image are made into respectively different display colors in accordance with the distance calculated by the distance calculation means, and the display means displays the images prepared by the image formation means. - View Dependent Claims (8, 9, 10, 11, 12)
- guidance route data including a guidance route, guidance points on the guidance route, and guidance information relating to these guidance points is sent to the portable terminal; and
Specification
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- Resources
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Current AssigneeNavitime Japan Co. Ltd.
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Original AssigneeNavigation System and Portable Terminal
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InventorsTashiro, Kazuhiro, Yoshida, Masakazu, Yamazaki, Hiroshi
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Application NumberUS11/813,490Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current701/201CPC Class CodesG01C 21/20 Instruments for performing ...G01C 21/3626 Details of the output of ro...G01C 21/3655 Timing of guidance instruct...
