Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1980-08-29
1983-05-17
Curtis, Marshall M.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
364521, 364742, 340734, 340803, 340743, G09G 114
Patent
active
043842860
ABSTRACT:
A display processor for displaying complex curves includes an initiating processor, responsive to indicia selection signals for producing signals representing at least one coordinate on said indicia, and recursive processor means responsive to said initiating processor for generating a sequence of signals, each signal in the sequence representing different coordinates of said indicia, and for also generating a corresponding sequence of signals representing rate of change of at least one parameter of said coordinates, a comparator responsive to the output of said recursive processor and to instantaneous sweep position for, at times, illuminating the display field when the instantaneous sweep position matches one of the sequence of indicia coordinates. The recursive nature of the processor limits the memory required during the course of the processing, and since the recursive processor performs only the functions of shifting and adding, the processing time expended is materially reduced over that previously required.
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patent: 3987284 (1976-10-01), Hogan et al.
patent: 4127850 (1978-11-01), Vallins
patent: 4168488 (1979-09-01), Evans
patent: 4225929 (1980-09-01), Ikeda
patent: 4280190 (1981-07-01), Smith
Curtis Marshall M.
General Signal Corp.
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