Method and arrangement for limiting the use of a display device
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United States of America Patent
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Nov 9, 2004
Grant Date -
N/A
app pub date -
Nov 12, 1999
filing date -
Nov 11, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Use of an especially small-sized and valuable display device (b 31) is limited to persons knowing a password, not by any requirement that a password (33) always be entered when the display device (31) is switched on, but rather detecting, the detachment of the display device (31) from the equipment (35-39) controlling it and measuring its time of being detached, for limiting the use of the display device (31) on the basis of a certain predetermined and adjustable time limit which, when exceeded, requires the password be entered.
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