Navigation system using mobile terminal
First Claim
1. A navigation system using plural mobile terminals each held by a movable body such as a person ridden in a vehicle or a walker, map data stored in a server on the Internet being loaded into a first one of the mobile terminals to display a moving route of each movable body on the first mobile terminal, said navigation system comprising:
- a first memory provided in the first mobile terminal, for storing the loaded map data of the server;
a display provided in the first mobile terminal, for displaying the map data, stored in the first memory, in the form of a voice and/or an image;
a first control unit provided in the first mobile terminal, for sending the identification number, current position, and destination of a first movable body to the server;
a second memory provided in the server, for storing the map data; and
a second control unit provided in the server, for, upon the input of the identification number, the current position, and the destination of the first movable body through the first control unit, reading map data containing the current position and the destination from the second memory and, based on the identification number, sending the map data to the first mobile terminal, said second control unit sending positional information regarding a second mobile terminal to the first mobile terminal when the first mobile unit requests said positional information.
2 Assignments
0 Petitions
Accused Products
Abstract
A mobile terminal such as a portable telephone accesses a map database server connected to the Internet, and positional data, destination, etc. acquired from a GPS receiver mounted on the mobile terminal are cataloged in the map database server. The results of a search for a route, route indication, etc. are received from the map database server in the form of a voice, a simplified map, or both a voice and a simplified map and are indicated on a display of the mobile terminal. By virtue of the above construction, a navigation system can be realized which can eliminate the need to update map data, is low in price, has no need to provide an installation space, has low power consumption, and can be simply and easily utilized.
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Citations
14 Claims
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1. A navigation system using plural mobile terminals each held by a movable body such as a person ridden in a vehicle or a walker, map data stored in a server on the Internet being loaded into a first one of the mobile terminals to display a moving route of each movable body on the first mobile terminal, said navigation system comprising:
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a first memory provided in the first mobile terminal, for storing the loaded map data of the server; a display provided in the first mobile terminal, for displaying the map data, stored in the first memory, in the form of a voice and/or an image; a first control unit provided in the first mobile terminal, for sending the identification number, current position, and destination of a first movable body to the server; a second memory provided in the server, for storing the map data; and a second control unit provided in the server, for, upon the input of the identification number, the current position, and the destination of the first movable body through the first control unit, reading map data containing the current position and the destination from the second memory and, based on the identification number, sending the map data to the first mobile terminal, said second control unit sending positional information regarding a second mobile terminal to the first mobile terminal when the first mobile unit requests said positional information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A navigation system using a mobile terminal held by a movable body such as a person riding in a vehicle or a walker, map data stored in a server on the Internet being loaded into a mobile terminal to display a moving route of movable body on the mobile terminal, said navigation system comprising:
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a first memory provided in the mobile terminal, for storing the loaded map data of the server; a display provided in the mobile terminal, for displaying the map data, stored in the first memory, in the form of a voice and/or an image; a first control unit provided in the mobile terminal, for sending the identification number, current position, and destination of the movable body to the server; a second memory provided in the server, for storing the map data; and a second control unit provided in the server, for, upon the input of the identification number, the current position, and the destination of the movable body through the first control unit, reading map data containing the current position and the destination from the second memory and, based on the identification number, sending the map data to the mobile terminal; wherein, upon the receipt of a request from the mobile terminal as a first mobile terminal for the display of the position of another mobile terminal as a second mobile terminal in the map data being currently displayed, the server searches the second memory for the positional information of the second mobile terminal, and, when information on the second mobile terminal has been found to be stored in the second memory, the server informs the second mobile terminal of that the first mobile terminal has requested the display of the position of the second mobile terminal in the map data being currently displayed and, upon the receipt of the permission to display the position of the second mobile terminal, the server reads, from the second memory, map data comprising positional data of the second mobile terminal added to the map data being currently indicated on the display of the first mobile terminal, sends the read map data to the first mobile terminal, and, in addition, sends to the second mobile terminal, the same map data as sent to the first mobile terminal through the second control unit of the server.
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Specification