Protection device for the horizontal scanning control of a display screen
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United States of America Patent
Stats
-
Nov 20, 1984
Grant Date -
N/A
app pub date -
Mar 22, 1983
filing date -
Mar 26, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a display screen horizontal scanning control protection device. The device comprises a switch making it possible to open or close the supply circuit of the scanning control circuit, said switch being activated with the aid of a signal supplied by an AND gate, whose state is a function of the level of the supply voltage of the central unit, which itself generates the horizontal scanning sync signal activating the scanning control circuit. Application to telematic terminals equipped with a cathode-ray tube screen.
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