Portable computer with time-sensitive tri-modal power management switch
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United States of America Patent
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Nov 16, 1999
Issued Date -
N/A
app pub date -
Dec 20, 1994
filing date -
Feb 14, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A portable computer in which a single switch is positioned to be closed when the case is closed, and also to be readily operable by the user's finger. Software polls the switch. If the switch is briefly depressed, the software detects that the user is requesting entry into standby mode, and accordingly powers down certain input/output functions until new stimulus is received. If the switch is held down for a long time by the user closing the case cover, or manually holding the button down for a long time, the software causes the system to enter sleep mode (its lowest power mode).
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