Power management system for selectively changing the power state of devices using an OS power management framework and non-OS power management framework

Patent metadata

Field	Value
Publication number	US-8990591-B2
Application number	US-72408410-A
Country	US
Kind code	B2
Filing date	Mar 15, 2010
Priority date	Dec 31, 2009
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

In some embodiments, the invention provides a higher efficiency, real-time platform power management architecture for computing platforms. A more direct power management architecture may be provided using integrated voltage regulators and in some embodiments, a direct power management interface (DPMI) as well. Integrated voltage regulators, such as in-silicon voltage regulators (ISVR) can be used to implement quicker, more highly responsive power state transitions.

First claim

What is claimed is:

1. An apparatus, comprising:
one or more processor cores to execute an operating system (OS) with a power management framework;
a power management unit (PMU); and
a direct power management interface (DPMI) coupled to the PMU to bidirectionally communicate power state messages between the PMU and devices,
the PMU to receive a DPMI power state change request for a first device of the devices from the DPMI and to receive an operating system power management…

Assignees

• Zou Peng
• Dibene Ii Joseph T
• Thenus Fernardi
• Intel Corp

Inventors

• Zou Peng
• Dibene Ii Joseph T
• Thenus Fernardi

Classifications

• G06F1/3203 Primary

  Physics · mapped topic

• G06F1/3287

  Physics · mapped topic

• Y02B60/1282

  Cross-Sectional Technologies · mapped topic

• Y02B60/1278

  Cross-Sectional Technologies · mapped topic

• G06F1/26

  Physics · mapped topic