Boots – shoes – and leggings
Patent
1994-07-26
1997-01-28
Ray, Gopal C.
Boots, shoes, and leggings
395283, 3647081, 361686, H05K 710, G06F 1300
Patent
active
055985378
ABSTRACT:
In a dockable computer system capable of hot docking or warm docking, a docking safe circuit drives the bus of the portable computer and docking station to a docking safe state in response to a DOCK signal. The DOCK signal may be a notice signal indicative of a change of state from the undocked state to the docked state or from the docked state to the undocked state. The notice signal may be provided from software, a user-actuated switch or an infrared signal. Preferably, the docking safe state or dockable state is a state in which: the ground conductors of the buses are referenced to a common ground potential; the buses are "quiet" or non-transitioning; the bidirectional terminals on the bus of the portable computer are set to an output state; the bidirectional terminals of the bus of the docking station are set to an input state; and the signaling levels of the buses have the same voltage potential. Preferably, the present invention is implemented on a peripheral component interconnect (PCI) bus.
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Gephardt Douglas D.
Swanstrom Scott
Advanced Micro Devices , Inc.
Ray Gopal C.
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