Message based power management

US7051218B1 · kind B1 · utility

Assignee

• Advanced Micro Devices, Inc. · US

Inventors

• Dale E. Gulick · Austin, US
• Frank P. Helms · Round Rock, US
• Larry D. Hewitt · Austin, US
• William A. Hughes · Burlingame, US
• Paul C. Miranda · Austin, US
• Derrick R. Meyer · Austin, US
• Scott E. Swanstrom · Austin, US
• Scott White · Austin, US

Key dates

• Filing date: Jun 28, 2002
• Grant date: May 23, 2006
• Expiry date: Jan 14, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D10/00
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A message based power management system converts legacy signals used in power management, and other signals used to differentiate between power states, to messages sent over a communication link. A system message sent on a communication link includes a field encoding the level of power management for the device receiving the system message. Further, one or more additional signals, separate from the communication link, may be used to indicate when to take action after the power management message has been received.