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External storage device and power management method for the same

一种外部存储、电源管理的技术，应用在测量装置、记录信息存储、数据处理电源等方向

Inactive Publication Date: 2008-02-06
コラボイノベーションズインコーポレイテッド
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Serial ATA specification has not yet determined how and under what circumstances the external storage device should transition to the low power consumption mode, and how to return to the normal operation mode under what circumstances thereafter.

Method used

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  • External storage device and power management method for the same
  • External storage device and power management method for the same
  • External storage device and power management method for the same

Examples

Experimental program
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Embodiment Construction

[0055] Next, the best mode for carrying out the present invention will be described with reference to the drawings.

[0056] FIG. 1 shows the configuration of an external storage device according to an embodiment of the present invention. The external storage device includes: a control medium unit 10 , a monitoring unit 20 , an interface unit 30 , a control power supply unit 40 and a central processing unit 50 .

[0057] The control medium part 10 includes: a power source for driving the recording medium 100 installed in the external storage device to a state where data access is possible, a part connected with the recording medium 100, that is, a magnetic head, and a data processing program block, etc. Wait. For example, in the case of an optical disc device, the control medium unit 10 includes a motor for rotationally driving the optical disc, an optical pickup for irradiating the optical disc with laser light, an error correction function, and the like.

[0058] The monit...

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PUM

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Abstract

An external storage device includes a media control section (10), a monitoring section (20), an interface section (30) and a power control section (40). The media control section (10) drives a recording media and performs data access to the recording media. The monitoring section (20) monitors whether the data access by the media control section (10) can be performed or not. The interface section (30) performs communication with a host device. When the monitoring section (20) detects that the data access can not be performed, the power control section (40) limits power supply to the interface section (30). When the monitoring section (20) detects that the data access can be performed, the power control section (40) re-starts the power supply.

Description

technical field [0001] The invention relates to an external storage device, in particular to the power management technology of the external storage device including a serial ATA interface. Background technique [0002] Currently, inexpensive ATA (Advanced Technology Attachment) and ATAPI (Advanced Technology Attachment Packet Interface) interfaces have been widely used as interfaces of external storage devices. When ATA or ATAPI is used, the host device periodically monitors the status of the external storage device, events that have occurred, and the like through inquiries. [0003] When ATA or ATAPI is used, basically the host device instructs the mode of the external storage device to shift to the low power consumption mode. This is because the ATA and ATAPI interfaces do not have the function of asynchronously notifying the host device of events occurring in the external storage device from the external storage device, and the external storage device cannot switch the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32G06F3/08G06F1/26
CPCG06F1/3221Y02B60/1246G06F1/3268G11B19/02Y02B60/32Y02D10/00Y02D30/50
Inventor 伊藤裕隆
Owner コラボイノベーションズインコーポレイテッド
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