Navigation apparatus capable of changing color scheme of a displ

Details Navigation apparatus capable of changing color scheme of a displ Navigation apparatus capable of changing color scheme of a displ

1995-03-13

1995-10-17

Bayerl, Raymond J.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

345199, 364449, 364443, 340990, G06T 500, G09G 506

Patent

active

054598249

ABSTRACT:
A plurality of preset palette data are stored in a ROM. User palette data are input through an RS232C interface and stored in a nonvolatile RAM. Based on an instruction from a user and other information such as a signal indicating the status of an illumination switch, a MPU selects one of the palette data and sets the selected palette data in a look-up table. Image data representing a map, present position, etc. is converted into color data by the look-up table, and then to an analog video signal for a color CRT. A display can be made using the palette data prepared by the user.

REFERENCES:
patent: 4706199 (1987-11-01), Guerin
patent: 4807157 (1989-02-01), Fukushima et al.
patent: 4825381 (1989-04-01), Bottorf et al.
patent: 4951212 (1990-08-01), Kurihara et al.
patent: 4965574 (1990-10-01), Fukushima et al.
patent: 4996645 (1991-02-01), Schneyderberg Van Der Zon
patent: 5243528 (1993-09-01), Lefebvre

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