Computer power supply startup apparatus
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United States of America Patent
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-
Nov 8, 2005
Grant Date -
Jul 19, 2001
app pub date -
Jan 12, 2001
filing date -
Jan 17, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In order to turn on the main power unit, when it is off, of a computer in a turned-off state from a keyboard, power is supplied from an auxiliary power unit to a USB controller on the keyboard unit side and a power supply startup unit on the computer side, and on the other hand when power supply to a line switching unit is cut off, switching sections are switched over to connect signal lines of the USB controller and input terminals of a differential amplifying unit, respectively. When a specific signal is supplied from the keyboard unit, a power supply startup signal (power ON signal) is supplied from the power supply startup unit to the main power unit to enable the main power unit to be started up.
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