Patent · US Active

Method and device for prolonging sleeping time of CPU

US9594419B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Hu Chen · Munich, DE
Junjie Cai · Hangzhou City, CN
Hao Zhao · San Francisco, US
Jing Xu · Buffalo, US

Key dates

Filing date	Apr 4, 2014
Grant date	Mar 14, 2017
Priority date	—
Expiry date	Jan 19, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/50
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

This application discloses a method for prolonging sleeping time of CPU. After CPU enters sleeping state, interrupt controller delays reporting deferrable external interrupts to the CPU, with the delay time set or as default. This application also provides a device corresponding to the method. This application can prolong the sleeping time of CPU in all kinds of intelligent electronic devices, and make the CPU enter a deep sleeping mode, thereby reducing power consumption substantially without affecting system performance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.