Map display device

Details Map display device Map display device

1992-03-10

1994-03-22

Chin, Gary

Boots, shoes, and leggings

364443, 340990, 340995, G06F 1550

Patent

active

052970515

ABSTRACT:
An on-board navigation apparatus constantly displays characters of name data associated with geographical data in legible order and direction whenever the display direction is changed to one of the north, south, east, and west directions. In operation, after the geographical data and associated name data in a desired region are read, name reference point and name area of the read name data is retrieved, and display direction of map orientation is retrieved. Coordinates of a drawing start point are then calculated on the basis of absolute coordinate of name reference point in accordance with the display direction. Correspondence between absolute coordinates of the geographical data and the coordinates of the drawing start point of the name data is established, and the name data is written into the name area so that the geographical data and the name data are stored while being superimposed with each other, thereby forming map data. The display is performed on the basis of the map data produced by the superimposition.

REFERENCES:
patent: 4527155 (1985-07-01), Yamaki et al.
patent: 4608656 (1986-08-01), Tanaka et al.
patent: 4628456 (1986-12-01), Hatano et al.
patent: 4812980 (1989-03-01), Yamada et al.

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