Painting-out pattern reference system

Details Painting-out pattern reference system Painting-out pattern reference system

1989-08-14

1992-03-03

Harkcom, Gary V.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340750, G06F 1562

Patent

active

050937995

ABSTRACT:
A painting-out pattern reference system comprises a graphic data memory for storing drawn graphic data to be displayed on a display screen, in the form of a bit image, the graphic data memory having a horizontal size of 2.sup.n .times.m words (where "n" and "m" are natural numbers); a pattern data memory storing a unitary painting-out pattern in the dorm of a bit image for defining the unitary painting-out pattern, the pattern data memory having a horizontal size of 2.sup.n words; a drawing address memory storing a memory address for performing a painting-out drawing, the drawing address memory supplying the stored memory address to the graphic data memory; a pattern address memory storing a pattern head memory address of any line in the pattern data memory; and a pattern data selector receiving least significant n bits of an address output of the drawing address memory and the pattern head memory address from the pattern address memory for generating an address to the pattern data memory so as to cause at least one word of pattern to be selected among 2.sup.n words of pattern stored in the pattern data memory so that the selected one word of pattern is supplied to the graphic data memory.

REFERENCES:
patent: 4486745 (1984-12-01), Konno
patent: 4815029 (1989-03-01), Barker et al.
patent: 4849747 (1989-07-01), Ogawa et al.
patent: 4881067 (1989-11-01), Watanabe et al.

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