Display method of navigation map

Details Display method of navigation map Display method of navigation map

1996-02-02

1998-09-15

Saras, Steven J.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

701200, 340990, G09G 534

Patent

active

058085980

ABSTRACT:
To obtain a display method navigation map intended to lessen the load of control means such as CPU, by quick scroll display. By comparison between preceding judging region (JO) and present judging region (JN), a changing direction of judging region is recognized, and rewriting is processed in advance in a page (display off divided memory region) of a map memory, being out of map display region of a display device. At this time, rewriting is processed by priority in a divided memory region that is high in possibility of move of the own vehicle and that must be written at the earliest opportunity.

REFERENCES:
patent: 4571684 (1986-02-01), Takanabe
patent: 5371846 (1994-12-01), Bates
patent: 5396430 (1995-03-01), Arakawa et al.
patent: 5398188 (1995-03-01), Maruyama
patent: 5434591 (1995-07-01), Goto

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