The invention is about an idle computer that is in hibernation mode in an interior space. For
example, in your personal office, hotel, or room, the computer can be woken up when you open
the door and come into the space in order to speed up the resume time. At the time when you
open the door, an air pressure‐sensing built‐in module will detect the change of air pressure in
the interior space. If the air pressure detector detects a momentary air pressure change slower
than a preset air pressure safety value, then it will send out a corresponding air pressure
abnormal signal to trigger the system to wake up.
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INC, HP, "A METHOD TO SPEED UP THE SYSTEM WAKE UP TIME", Technical Disclosure Commons, (April 16, 2020)