Navigation apparatus

By retrieving and displaying road information related to the guidance route in the navigation device, the problem of traditional navigation devices displaying multiple irrelevant road information when approaching a branch point is solved, achieving clear and reliable navigation route display and improving user experience. .

Inactive Publication Date: 2008-02-13
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, until now, no method has been devised to select appropriate road information

Method used

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Examples

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Embodiment Construction

[0023] Embodiments disclosed in the present application are described with reference to the drawings.

[0024] Fig. 1 shows a block diagram of a navigation device in an embodiment disclosed in the present application. The navigation device includes a position detector 10 for detecting the current position of the vehicle, an operation switch 12 for inputting various instructions from the user (for example, a driver), for inputting external records from recorded map data and various information A map data input unit 13 for map data of the medium, a display unit 14 for displaying various information such as maps and television images, a speaker 15 for outputting various guidance sounds, an external information input / output (IO) unit 16, And the control unit 20 for performing various operations according to the input from the above-mentioned parts such as the position detector 10, the operation switch 12, the map data input unit 13, the external information IO unit 16 and controll...

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Abstract

A navigation apparatus provides a route guidance that selectively displays guidance information of a navigation route when the navigation route branches from a branch point. That is, for example, when the navigation route goes through two branch points in a series and the second branch point has plural branch roads respectively having guidance information, the navigation apparatus displays the guidance information of one of the branch roads relevant to the navigation route when a vehicle having the navigation apparatus approaches the first branch point.

Description

technical field [0001] The present invention generally relates to navigation devices for use in vehicles. Background technique [0002] Conventionally, navigation devices used in vehicles provide route guidance and the like to drivers of vehicles based on road map data. For example, when a starting point and a destination are entered, the navigation device provides route guidance traveling from the starting point to the destination. [0003] The navigation device uses road map data, for example, a road map, and road information such as road types (eg, national roads, local roads, etc.), road numbers, road names (eg, route 1, side roads, etc.). Road map data is stored in the navigation device. In addition, when the vehicle approaches a branch point on the route to the destination, the navigation device displays road information of a road following the branch point on the screen of the display unit. In addition, as disclosed in Japanese Patent Document JP-A-2002-286487, the...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01C21/26G01C21/34G01C21/36G09B29/00G09B29/10
CPCG01C21/367
OwnerDENSO CORP