Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1982-09-30
1986-11-11
Curtis, Marshall M.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340703, 340748, 340734, 358183, 358261, G09G 100
Patent
active
046225455
ABSTRACT:
Apparatus and methods are disclosed which are most advantageously used in conjunction with a digital computer to provide improved graphics capability. These techniques permit the representation and manipulation of any arbitrarily shaped image in terms of "inversion points". Inversion points defining a region are sorted and stored such that the region shape may be regenerated at a later time from the inversion points. Means are provided to compare existing regions and new regions to be displayed, and region operators are provided to specify a precedence between the existing and new regions. Thus, new regions are appropriately "clipped" such that only portions of a new region may actually be displayed to achieve the desired graphic representation.
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patent: 3305841 (1967-02-01), Schwartz
patent: 4233601 (1980-11-01), Hankins et al.
patent: 4266242 (1981-05-01), McCoy
patent: 4334245 (1982-06-01), Michael
patent: 4360831 (1982-11-01), Kellar
patent: 4399467 (1983-08-01), Subramaniam
patent: 4420770 (1983-12-01), Rahman
Apple Computer Inc.
Curtis Marshall M.
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