Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1987-07-24
1989-07-25
Brigance, Gerald L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340735, 340748, 340750, 364521, G09G 114
Patent
active
048518255
ABSTRACT:
A method and system for efficiently generating grayscale character fonts from bi-level master character fonts decomposed into rectangles. For each filter array to be used for converting master character fonts into grayscale characters there is generated at least one summed area filter array. Each element in each summed area filter array represents the sum of the filter array elements in a corresponding subarray of the filter array. A grayscale character is generated by performing, for each rectangle in the corresponding decomposed master character, the steps of:
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"Digital Typography", Scientific American, vol. 249, No. 2, Aug., 1983, pp. 106-119, Bigelow and Day.
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"Minimum Edge Length Decompositions of Rectilinear Figures", Lingas et al., Proc. of 12th Annual Allerton Conf. on Communication, Control & Computing, 1982.
"The Display of Characters Using Gray Level Sample Arrays", Computer Graphics, vol. 14, No. 3, Jul. 1980, pp. 302-307, Warnock.
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