The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 31, 1998

Filed:

Jul. 20, 1995
Applicant:
Inventors:

Hiroaki Odawara, Menlo Park, CA (US);

Moritoshi Yasunaga, Tsukuba, JP;

Kazunori Kuriyama, Iruma-gun, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
39580001 ; 39520027 ; 395851 ; 395894 ; 3642382 ; 364D / ;
Abstract

A data processor transfers files at high speeds from a magnetic disk or other storage media to a network and shortens the processing time for the file transfers. An I/O processor includes (i) a channel to which a magnetic disk is connected, (ii) a LAN adapter to which a network is connected, (iii) a switch for switching and connecting the channel and LAN adapter, and (iv) a channel controller for controlling the channel, the LAN adapter, and the switch. The channel controller controls the channel, the LAN adapter, and the switch in accordance with a data transfer start instruction from an instruction processor. The channel reads data from the magnetic disk and transfers it to the LAN adapter via the switch. The LAN adapter sends the data to the network or reads data from the network and transfers it to the channel via the switch. The channel sends the data to the magnetic disk.


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