Video terminal with image line disarrangement

Details Video terminal with image line disarrangement Video terminal with image line disarrangement

G - Physics

09

G

375/18, 354/236,

G09G 1/16 (2006.01) G06F 1/00 (2006.01) G06F 3/153 (2006.01) G06F 21/00 (2006.01)

Patent

CA 1229931

TITLE: Video terminal with image line disarrangement. ABSTRACT The invention provides a video terminal comprising electronic circuit provisions due to which the user of this terminal is protected against unwanted "remote looking-in" by other persons at the information repro- duced on his screen. For that purpose the sequence in which the image lines are reproduced on the screen, is pseudo-randomly disarranged. 4 Claims, 4 Drawing Figures

483982

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