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Data transfer control system, electronic apparatus and program

A technology for data transmission control and electronic equipment, applied in the direction of data processing power supply, electrical digital data processing, digital data processing components, etc., can solve problems such as unsatisfactory power saving

Inactive Publication Date: 2006-02-22
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in conventional power saving methods, when an electronic device is connected via a USB cable to a personal computer (PC) in a standby (standby) state, the power of the electronic device is turned on (ON), and power saving cannot be achieved. ideal

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  • Data transfer control system, electronic apparatus and program
  • Data transfer control system, electronic apparatus and program
  • Data transfer control system, electronic apparatus and program

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Embodiment Construction

[0033] Next, embodiments of the present invention will be described in detail. In addition, the embodiments of the present invention described below do not unduly limit the content of the present invention described in the claims. Moreover, all the components described in the embodiments are not necessarily the essential components of the technical problem to be solved by the present invention.

[0034] 1. Power linkage function

[0035] exist figure 1 In (A), the electronic device includes devices such as a hard disk drive (HDD). In such electronic equipment, even if the power switch is turned ON, the power of the HDD is always off, such as figure 1 As shown in (B), there is a power interlocking function for turning on the power of the HDD on the condition that it is connected to the personal computer PC1 via a USB (universal serialbus: Universal Serial Bus) cable.

[0036] Specifically, as figure 2 As shown, when the USB cable is connected and VBUS is turned on (VBUS p...

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Abstract

The present invention provides a data transfer control system capable of achieving power supply control that is highly effective in saving power; electronic equipment; and a program. The data transfer control system 10 controls data transfer between a PC 1 (first electronic equipment) connected via a BUS 1 and an HDD 100 (device) connected via a BUS 2. The data transfer control system includes a connection control part 52 that directs attachment to the BUS 1 before the power supply to the HDD 100 is turned on; a bus state monitoring part 60 that detects whether or not the BUS 1 has been reset after the attachment; and a power supply control part 90 that controls the power supply to turn on the power supply to the HDD 100 when the reset state of the BUS 1 is detected.

Description

technical field [0001] The invention relates to a data transmission control system, electronic equipment and a program. Background technique [0002] In recent years, high-speed serial interfaces such as USB2.0 and IEEE1394 have attracted much attention. Also, power saving methods of electronic equipment on which a data transmission control system realizing such a high-speed serial interface is mounted are disclosed in various prior arts. [0003] However, in conventional power saving methods, when an electronic device is connected via a USB cable to a personal computer (PC) in a standby (standby) state, the power of the electronic device is turned on (ON), and power saving cannot be achieved. ideal. [0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. H11-212681 [0005] Patent Document 2: JP-A-2001-195158 Gazette Contents of the invention [0006] In order to solve the above technical problems, the purpose of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32
CPCG06F1/3209Y02B60/1235G06F1/3215G06F13/387Y02B60/1246G06F1/3268Y02D10/00
Inventor 藤田信一郎金井裕之中尾浩二药师寺浩
Owner SEIKO EPSON CORP