Image producing apparatus

Details Image producing apparatus Image producing apparatus

1994-04-26

1996-04-16

Nguyen, Phu K.

G06F 1562

Patent

active

055091130

ABSTRACT:
An apparatus for producing a railroad symbol and a road symbol, includes a CPU, a coordinates input device, an external storage device and a display. The CPU has an operation unit for performing a drawing operation, an interface circuit and a memory for storing data and a program. The railroad symbol is produced by continuous drawing of figure parts. The road symbol is produced by overlapping curved line drawn with a circle in a color and curved line drawn with smaller circle in another color.

REFERENCES:
patent: 4849910 (1989-07-01), Jacobs et al.
patent: 4905166 (1990-02-01), Schuerman
patent: 5115494 (1992-05-01), Seki
patent: 5208904 (1993-05-01), Sasaki
patent: 5307453 (1994-04-01), Takashino
patent: 5325476 (1994-06-01), Takii et al.
patent: 5377314 (1994-12-01), Bates et al.

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