Prioritized overlay of foreground objects line buffer system for

Details Prioritized overlay of foreground objects line buffer system for Prioritized overlay of foreground objects line buffer system for

1983-08-08

1985-02-05

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

273 85G, 273DIG28, 340721, G09G 116

Patent

active

044980795

ABSTRACT:
A priority ordered multiple video object display system is disclosed for use with a raster scan display having a plurality of display locations on a plurality of display lines. The display system comprises means for generating a list of ordered video object data packets, and buffer means for storing the list of ordered data packets at locations spatially associated with respective display locations. Also included are means for varying the order in which the packets are written into the buffer means, and means for selectively suppressing zero overwrite for secondary writes to a single location in said buffer means during the construction of a common single display line stored within said buffer means. A method of presenting a video display is also disclosed.

REFERENCES:
patent: 4070710 (1978-01-01), Sukonick et al.
patent: 4112422 (1978-09-01), Mayer et al.
patent: 4116444 (1978-09-01), Mayer et al.
patent: 4177462 (1979-12-01), Chung
patent: 4225929 (1980-09-01), Ikeda
patent: 4243984 (1981-01-01), Ackley et al.
patent: 4324401 (1982-04-01), Stubben et al.
Midway's Galaxian Trouble Shooting Logic Board, Part I, Franklin Park, Ill., Midway Mfg. Co., 1980, p. 13.
Midway's Pac-Man Parts and Operating Manual, Franklin Park, Ill., Midway Mfg. Co., 1980, p. 32.
Giloi, W. K., Interactive Computer Graphics, Englewood Cliffs, N.J., Prentice-Hall, 1978, Ch. 7.
Newman, W. M. and Sproull, R. F., Principles of Interactive Computer Graphics, N.Y., McGraw-Hill, 1979, Ch. 26.

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