Claims
- 1. A map database for storing map information which comprises a plurality of types of information regarding a first map mesh provided with height information and a second map mesh with no height information, comprising at least:said height information as to the first map mesh; and information for identifying that said second map mesh has no height information.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-294919 |
Nov 1996 |
JP |
|
Parent Case Info
This is a continuation of application No. 08/963,607 filed Oct. 31, 1997, now U.S. Pat. No. 6,175,802.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4940972 |
Mouchot et al. |
Jul 1990 |
A |
5838277 |
Loomis et al. |
Nov 1998 |
A |
5913918 |
Nakano et al. |
Jun 1999 |
A |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/963607 |
Oct 1997 |
US |
Child |
09/640522 |
|
US |