Unlock instant, AI-driven research and patent intelligence for your innovation.

Arithmetic processing system and control method, task management system and method

A technology of arithmetic processing and control methods, which is applied in the direction of memory system, program control design, data processing power supply, etc., to achieve the effect of reducing power consumption

Inactive Publication Date: 2006-12-06
SONY CORP
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no prior art that implements this

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Arithmetic processing system and control method, task management system and method
  • Arithmetic processing system and control method, task management system and method
  • Arithmetic processing system and control method, task management system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0084] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0085] 1. System structure

[0086] The hardware structure of the computing processing system 10 implementing the present invention is in figure 1 , where the arithmetic processing system 10 is composed of a processor 11 , a random access memory (RAM) 12 , a read only memory (ROM) 13 , one or more peripheral devices 14 and a timer 15 .

[0087] The processor 11 is a main controller of the arithmetic processing system 10, and executes various program codes under the control of an operating system (OS).

[0088] In general, units of management and control executed by operating system programs are called tasks. The processor 11 of this embodiment has a multitasking mechanism for performing multitasking operations simultaneously in different cycles. Tasks can be broadly divided into 'periodic real-time tasks' whose execution must complete before...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A system which enables a change in the operating frequency and the power source voltage of a processor by the control of an operating system makes the operating frequency of a processor necessary to process a started periodical real-time task and non-real-time task without delays vary adaptively, and an optimal power source voltage for a processor determined according to the operating frequency switching time by time. This results in a reduction in power consumption by the processor while responding to with the real-time requests of application software.

Description

technical field [0001] The present invention relates to power reduction techniques for processors executing one or more task types simultaneously. In particular, it relates to power reduction techniques for processors operating at different cycles to perform one or more tasks. [0002] The present invention also particularly relates to techniques for reducing the power of a processor of the type that executes periodic real-time tasks that must be completed before the next cycle begins, as a parallel operation of non-real-time tasks exempt from this restriction, and Reduction techniques that involve reducing processor power consumption while meeting the needs of applications for real-time execution. Background technique [0003] With recent revolutionary progress in LSI (Large Scale Integration) technology, various information processing devices and information communication devices have been developed and marketed. Using these devices, a CPU (Central Processing Unit) or ot...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/46G06F1/08G06F1/32G06F1/04G06F9/00G06F9/48
CPCG06F9/4887G06F1/324G06F1/3293Y02B60/121Y02B60/1217Y02B60/144Y02D10/00G06F9/46
Inventor 户川敦之
Owner SONY CORP