Video display apparatus

Details Video display apparatus Video display apparatus

1982-03-31

1985-12-03

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340799, 340747, 340748, G09G 100

Patent

active

045568790

ABSTRACT:
In a video display apparatus which includes a video random access memory storing data of characters and graphics to be displayed on a cathode-ray tube display unit of raster scan type and in which display data corresponding to display positions on the cathode-ray tube display unit are read out from the video random access memory and are then subjected to parallel-serial conversion to provide a video signal applied to the cathode-ray tube display unit, the display data are read out from the video random access memory utilizing the page read function so that an inexpensive dynamic random access memory can be used as the video random access memory.

REFERENCES:
patent: 3624632 (1971-11-01), Opair
patent: 3849773 (1974-11-01), Katahira et al.
patent: 4197590 (1980-04-01), Sukonick et al.
patent: 4388621 (1983-06-01), Komatsu et al.

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