CRT Display apparatus with changeable cursor indicia

Details CRT Display apparatus with changeable cursor indicia CRT Display apparatus with changeable cursor indicia

1977-12-13

1980-10-14

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340735, 340723, 340750, 340799, G06F 314

Patent

active

042284309

ABSTRACT:
Disclosed is a raster scanning type CRT display apparatus having a microprogrammed processor for primarily controlling the input and output of data to and from an external information source. This CRT display apparatus comprises a plurality of cursor controlling registers having their contents set by the processor. The contents of these registers define the configuration of a cursor for displaying a data entry position on its screen, the decision with respect to the blinking of the cursor, and a period of the blinking.

REFERENCES:
patent: 3531796 (1970-09-01), Kiesling
patent: 3573855 (1971-04-01), Gragon et al.
patent: 3911419 (1975-10-01), Bates et al.
patent: 3967266 (1976-06-01), Roy
patent: 3997891 (1976-12-01), Iwamura et al.
patent: 4093995 (1978-06-01), Smith et al.
Correlation of Coded Graphic Representations with Cursor Position; Bantz et al., IBM Tech. Discl. Bull., vol. 20, No. 2, pp. 806-807, Jul. 1977.

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