Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1983-09-16
1988-04-12
Brigance, Gerald L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340748, 340799, G09G 114
Patent
active
047377801
ABSTRACT:
A display control circuit comprises dynamic memory chips as a video RAM for storing pattern data or character codes to be displayed on a screen, and a read controller for generating a reading address (including a raster address and a memory address). For refreshing all memory cells for the dynamic memory chips within a predetermined refresh period, the circuit further comprises an address converter for supplying a part of the raster address and a part of the memory address to a row address of the memory chips and for supplying all or a part of the remaining reading address to a column address thereof so that a part of the raster address is assigned to the lower bit location of the row address.
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patent: 4388621 (1983-06-01), Komatsu et al.
patent: 4408200 (1983-10-01), Bradley
patent: 4430649 (1984-02-01), Leininger
patent: 4482979 (1984-11-01), May
patent: 4556879 (1985-12-01), Tanaka
Brier Jeffery A.
Brigance Gerald L.
Tokyo Shibaura Denki Kabushiki Kaisha
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