Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reissue Patent
2011-01-18
2011-01-18
Du, Thuan N (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C710S014000, C710S015000, C710S016000, C710S062000
Reissue Patent
active
RE042052
ABSTRACT:
An improved method and apparatus manages communications port contention and power consumption for a handheld computer, particularly handheld computers with a communications protocol that boosts power consumption when active, such as an RS-232 protocol. The improved method provides communications channel management that automatically opens the communications channel in response to a wake-up signal sent to a handheld computer from a peripheral device. The computer peripheral device is explicitly and/or implicitly identified. The opened communications channel is closed in response to receiving some data from the peripheral device, and/or after a device timeout expires without the handheld computer receiving data from the computer peripheral device.
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Donaldson Jesse Earl
Osborn Neal A.
Access Systems Americas, Inc.
Berry & Associates P.C.
Du Thuan N
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