Navigation device

• US 20010002455A1
• Filed: 11/29/2000
• Published: 05/31/2001
• Est. Priority Date: 11/30/1999
• Status: Active Grant

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Hashimoto, Koji, Sugimoto, Akira, Utsui, Yoshihiko, Uekawa, Akio, Ideno, Hiroaki, Kusama, Toshiki
• Granted Patent: US 6,487,493 B2
• Time in Patent Office: Days
• US Class Current: 701/200
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network

Abstract

A navigation device comprises a platform having hardware including at least a user operation unit and a map database, and basic functions to control the hardware. The navigation device also includes an application processing unit for providing navigation services by using the basic functions of the platform, and a platform-dependent unit for, when transferring information from the platform to the application processing unit, transferring it in a constant format, and for, when transferring information from the application processing unit to the platform, transferring it in a certain format which depends on the platform. The map database holds map data in a predetermined recording format. The navigation device can further comprise a map-database-dependent unit for receiving map data, which is read from the map database by the platform-dependent unit, and for supplying the received map data to the application processing unit in the constant format. The navigation device can also comprise a user-interface-dependent unit for receiving data corresponding to a user'"'"'s operation, which is read from the user operation unit by the platform-dependent unit, and for supplying the received data to the application processing unit in the constant format.

Claims

1. A navigation device comprising:

a platform having hardware including at least a user operation means and a map database, and basic functions to control said hardware;

an application processing means for providing navigation services by using said basic functions of said platform; and

a platform-dependent means for, when transferring information from said platform to said application processing means, transferring it in a constant format, and for, when transferring information from said application processing means to said platform, transferring it in a certain format which depends on said platform.

2. The navigation device according to

claim 1

, wherein said map database holds map data in a predetermined recording format, and said device further comprises a map-database-dependent means for receiving map data, which is read from said map database by said platform-dependent means, and for supplying said received map data to said application processing means in the constant format.

3. The navigation device according to

claim 1

, further comprising a user-interface-dependent means for receiving data corresponding to a user'"'"'s operation, which is read from said user operation means by said platform-dependent means, and for supplying said received data to said application processing means in the constant format.

4. The navigation device according to

claim 2

, further comprising a user-interface-dependent means for receiving data corresponding to a user'"'"'s operation, which is read from said user operation means by said platform-dependent means, and for supplying said received data to said application processing means in the constant format.

5. A navigation device comprising:

a platform having hardware including at least a user operation means and a map database for holding map data in a predetermined recording format, and basic functions to control said hardware;

an application processing means for providing navigation services by using said basic functions of said platform; and

a map-database-dependent means for receiving map data read from said map database, and for supplying said received map data to said application processing means in a constant format.

6. A navigation device comprising:

a platform having hardware including at least a user operation means and a map database, and basic functions to control said hardware;

an application processing means for providing navigation services by using said basic functions of said platform; and

a user-interface-dependent means for receiving data corresponding to a user'"'"'s operation, which is read from said user operation means, and for supplying said received data to said application processing means in a constant format.