Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2005-04-12
2005-04-12
Perveen, Rehana (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
C713S340000, C307S085000, C307S086000, C323S271000, C323S285000
Reexamination Certificate
active
06880095
ABSTRACT:
A computing system includes a motherboard including one or more connection subsystems, each of which includes a port connector and a device interface circuit conditioning signals transmitted or received through the port connector. The port connector includes a connection-sensing terminal, which is connected to ground through a cable, and which is allowed to float to a voltage supplied through a pull-up resistor when the cable is disconnected. The motherboard also includes a main voltage plane supplying electrical power to a separate voltage plane for each device interface circuit only when a cable is connected to the port connector which is also connected to the device interface circuit.
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Cromer Daryl Carvis
Locker Howard Jeffrey
Trotter Andy Lloyd
Ward James Peter
Davidge Ronald V.
International Business Machines - Corporation
Munoz-Bustamante Carlos
Perveen Rehana
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