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Data transfer control system, electronic apparatus, and program

A technology for data transmission control and electronic equipment, applied in digital transmission systems, transmission systems, data processing power supplies, etc., can solve problems such as insufficient power saving

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

AI Technical Summary

Problems solved by technology

In addition, the power saving of devices such as hard disk drives (HDDs) installed in electronic equipment is also very insufficient.

Method used

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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

[0034] 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.

[0035] 1. IEEE1394, SBP-2

[0036] 1.1 SBP-2

[0037] IEEE1394 (IEEE1394-1995, P1394a, P1394b, etc.) protocol, including transaction processing layer, link layer, and physical layer. Furthermore, a protocol called SBP-2 (Serial Bus Protocol-2) has been proposed as a high-level protocol including a part of the functions of the transaction layer of IEEE1394 (the first interface standard in a broad sense). In SBP-2 (SBP), it is possible to use SCSI (Small Computer System Interface) command set (podium) based on the IEEE1394 protocol.

[0038] figure 1 It is an outline flow chart of ...

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Abstract

The invention provides a system, an electronic apparatus and a program for data transfer control which can realize power control with effective reduction in electricity consumption. The data transfer control system (10) is used to control the data transfer between a first electronic apparatus PC(1) connected via a BUS(1) and a device HDD(100) connected via a BUS(2), and comprises a management section (60) for receiving a login request when the first electronic apparatus PC(1) sends a login request for acquirement of an access right to the device HDD(100) and for receiving a logout request when the first electronic apparatus PC(1) sends a logout request for abandoning the access right acquired by the login request; and a power control section (90) for controlling power by starting the power supply to the device HDD(100) when the first electronic apparatus PC(1) sends the login request to the device HDD(100).

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 IEEE1394 and USB2.0 have attracted much attention. And, a power saving method of an electronic device equipped with a data transmission control system realizing such a high-speed serial interface is disclosed in each prior art. [0003] However, in conventional power saving methods, low power consumption of electronic equipment (peripheral equipment) equipped with a data transmission control system is achieved by detecting the power supply status of a host system such as a personal computer (PC). Furthermore, power saving of devices such as hard disk drives (HDDs) included in electronic equipment is also far from enough. [0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. H11-212681 Contents of the invention [0005] To solve the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32G06F13/38
CPCG06F13/4226Y02B60/1228Y02B60/1235H04L12/40123Y02D10/00
Inventor 藤田信一郎金井裕之中尾浩二药师寺浩
Owner SEIKO EPSON CORP