Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2007-12-04
2010-11-30
Butler, Dennis M (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S320000, C713S324000
Reexamination Certificate
active
07844845
ABSTRACT:
A call from a user operating system (UOS) to BIOS to configure a connected device into a reduced energy consumption mode is routed through a virtual machine monitor (VMM). The VMM determines whether a service O.S. (SOS) is in need of the device and if so the VMM informs the UOS that the device has been configured as ordered, while allowing the SOS to complete its task with the device. If the SOS is not in need of the device, or at the completion of the SOS task with the device, the VMM passes the call to ACPI/BIOS to configure the device in the demanded energy consumption mode.
REFERENCES:
patent: 5953536 (1999-09-01), Nowlin, Jr.
patent: 7529956 (2009-05-01), Stufflebeam
patent: 2005/0003812 (2005-01-01), Gladwin et al.
patent: 2008/0005494 (2008-01-01), Zimmer et al.
Chen Liang
Davis Mark Charles
Kawano Seiichi
Waltermann Rod David
Butler Dennis M
Lenovo ( Singapore) Pte. Ltd.
Rogitz John L.
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