US 9,792,064 B2 · Method, apparatus, and system for energy efficiency and energy conservation including autonomous hardware-based deep power down in devices

Abstract

Embodiments of systems, apparatuses, and methods for energy efficiency and energy conservation including enabling autonomous hardware-based deep power down of devices are described. In one embodiment, a system includes a device, a static memory, and a power control unit coupled with the device and the static memory. The system further includes a deep power down logic of the power control unit to monitor a status of the device, and to transfer the device to a deep power down state when the device is idle. In the system, the device consumes less power when in the deep power down state than in the idle state.

Claims19

Dependent claims

A system for efficient energy consumption, comprising:

a device external to a central processing unit (CPU);
a static memory dedicated to the device;
a sustain power rail to provide power to the static memory to enable the static memory to maintain its storage during a deep power down state;
and
a power control unit coupled with the device and the static memory, the power control unit to monitor a plurality of metrics and to select a heuristic to employ to control power transfers, and to transfer the device to a deep power down state when the device is idle, wherein the device consumes less power in the deep power down state than in the idle state.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/219,183Filed 25 Jul 2016 · continuation

Priority

22 Dec 2011

Published

US 2016/0335020 A117 Nov 2016

Granted

17 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06F 3/0625
Specifically adapted to achieve a particular effect: power saving in storage systems
G06F 1/3206
Power management, i.e. event-based initiation of a power-saving mode: monitoring of events, devices or parameters that trigger a change in power…
G06F 1/3278
Power saving in peripheral device: power saving in modem or I/O interface
G06F 1/3287
Power saving characterised by the action undertaken: by switching off individual functional units in the computer system

Family

Application13/335,738Parent of this continuation · filed 22 Dec 2011

US 2016/0335020 A1Pre-grant publication · published 17 Nov 2016

US 9,400,545 B2Parent of this continuation

US 2012/0179927 A1Published application

US 9,792,064 B2This patent

From the US filing history. Foreign family members aren’t listed.

Method, apparatus, and system for energy efficiency and energy conservation including autonomous hardware-based deep power down in devices

Life of this patent

Method, apparatus, and system for energy efficiency and energy conservation including autonomous hardware-based deep power down in devices

Life of this patent

Abstract

Claims19