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Information processing apparatus and information processing method

A technology of information processing equipment and storage unit, which is applied in the direction of data processing power supply, electrical digital data processing, digital data processing parts, etc., can solve the problems of shortening return time, increasing power consumption, and inability to effectively reduce power consumption, etc., to achieve shortening Effects of returning time and reducing power consumption

Active Publication Date: 2009-08-26
CANON KK
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Problems solved by technology

[0008] However, when a plurality of computing devices and a plurality of main storage devices are included in the information processing apparatus, the above-mentioned configuration cannot effectively reduce power consumption and shorten return time
For example, in the configurations described in the above Japanese Patent Laid-Open No. 2005-78197 and Japanese Patent Laid-Open No. 2007-25882, in order to store the main program and required data in the power saving mode, it has to be stored in multiple main storage devices. Power supply, increased power consumption in power saving mode
[0009] On the other hand, in the case of a configuration using the sleep function, power consumption can be suppressed, but data transfer from the auxiliary storage device to a plurality of main storage devices takes a lot of time
Therefore, shortening the return time is limited

Method used

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  • Information processing apparatus and information processing method
  • Information processing apparatus and information processing method
  • Information processing apparatus and information processing method

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no. 1 example

[0033] 1. Structure of Image Forming Device

[0034] figure 1 is a sectional view showing the overall structure of the image forming apparatus including the information processing apparatus according to the present embodiment. The image forming apparatus 100 includes a main body unit including a document feeder 110 , an image reader 120 , and a printer unit 130 , a folding device 150 , and a finisher 160 .

[0035] The document feeder 110 sequentially feeds the documents placed on the document tray 111 one by one starting from the uppermost page, and conveys the documents onto the platen glass 121 through a curved path.

[0036] As a method for reading a single-sided document by the image reader 120 , a document fixed reading mode and a document passing reading mode are known. In the document fixed reading mode, the document is conveyed and stopped so that the rear end of the document is at the reading position R1 on the platen glass 121 , and the scanner unit 122 is moved...

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Abstract

The invention relates to an information processing apparatus and an information processing method. In the information processing apparatus which includes a plurality of arithmetic units and a plurality of storage units, power consumption in a power saving mode is reduced, and a return time required to return from the power saving mode to a normal power mode is shortened. With this invention, in the information processing method in the information processing apparatus which includes a plurality of CPUs and a plurality of RAMs, when a condition required to transit to the power saving mode is satisfied, each CPU stores information associated with an operation state of an active program in one RAM, and turns off the power supply to devices except for the RAM.

Description

technical field [0001] The present invention relates to an information processing device and an information processing method including a plurality of arithmetic units and a plurality of storage units. Background technique [0002] In recent years, hardware components such as an arithmetic unit (CPU), a main storage device (eg, RAM), and an auxiliary storage device (HDD) are included in various devices in order to realize multifunctional devices, and various functions are implemented with application programs. [0003] In addition, there has been a proposal to further realize multifunctionality of an information processing device by including a plurality of arithmetic means and a plurality of OS (Operating System) in one information processing device (for example, see Japanese Patent Application Laid-Open No. 2007-35066) . [0004] As information processing devices realize more functions, the power consumption of information processing devices tends to increase. For this r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/00G06F3/12
CPCG06F1/26B41J29/28G03G15/5004G06F1/30Y02B60/1271Y02B60/1278G06F1/3203G06F1/32G06F1/3287Y02B60/1267Y02B60/1282G06F1/3284Y02D10/00
Inventor 清水孝治浅野浩平横沟聪
Owner CANON KK
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