05404546 is referenced by 102 patents and cites 10 patents.

Method and apparatus for effecting BIOS independent power management of a personal computer system having a processor complex connected via a system bus to at least one I/O device capable of operating in a reduced power consumption state. A power control system comprising a dedicated power management microcontroller monitors the activity of various I/O devices. When a particular device or combination of devices has remained inactive for the preselected time interval, the power control system issues a bus request to a processor complex. When the processor complex acknowledges the bus request, the power control system asserts control as master of the system bus and performs the operations necessary to cause at least one device to enter a reduced power consumption state. The power control system then surrenders control of the bus to the processor complex. In one aspect, a CPU clock controller is utilized to reduce the processing speed of the processor complex CPU.

Title
BIOS independent power management for portable computer
Application Number
655889
Publication Number
5404546
Application Date
February 16, 1993
Publication Date
April 4, 1995
Inventor
Gregory N Stewart
Austin
TX, US
Agent
James Huffman
David McCombs
Assignee
Dell USA
TX, US
IPC
G06F 1/32
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