| 发明名称 |
VIDEO TERMINAL WITH IMAGE LINE DISARRANGEMENT |
| 摘要 |
<p>TITLE: Video terminal with image line disarrangement. 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 reproduced 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</p> |
| 申请公布号 |
CA1229931(A) |
申请公布日期 |
1987.12.01 |
| 申请号 |
CA19850483982 |
申请日期 |
1985.06.14 |
| 申请人 |
STAAT DER NEDERLANDEN (STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE E |
发明人 |
VAN ECK, WILLEM |
| 分类号 |
G11B27/00;G06F1/00;G06F21/00;G09G1/16;G09G5/00;G11B27/10;H04K1/00;H04N7/167;H04N7/169;(IPC1-7):G09G1/16;G06F3/153 |
主分类号 |
G11B27/00 |
| 代理机构 |
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