Cursor display control system for a raster scan type display sys

Details Cursor display control system for a raster scan type display sys Cursor display control system for a raster scan type display sys

1980-04-25

1982-04-06

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

340717, 340750, 340800, G09G 116

Patent

active

043238912

ABSTRACT:
In a raster scan type display system in which a display screen is divided into a plurality of sections, and the display information is supplied to stations by using a mirror reflection, a cursor address for one of the divided sections or screens is outputted from an interface controller while the cursor address for the other divided screen is stored in a register in the controller. The cursor address produced by the interface controller is compared with the refresh memory address outputted from a CRT controller in a comparator. When both are coincident with each other, the comparator produces a cursor display signal.

REFERENCES:
patent: 3792198 (1974-02-01), Hanson et al.
patent: 4112423 (1978-09-01), Bertolasi

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