Hitachi, Ltd.

Osamu Kunisaki

Hiromichi Fujisawa

Kunihiro Okada

Yasuaki Nakano

Toshitsugu Ozaki

Naoto Matsunami

Kiyoshi Honda

Hideki Kamimaki

Masatoshi Ichikawa

Yuuji Saeki

Shiro Oishi

Tosikazu Yasue

A disk storage apparatus includes a logical unit number correspondence memory for storing the correspondence and the logical unit number designated by a host computer and the logical unit number of the disk storage apparatus, a logical unit number conversion program for converting the logical unit number designated by the host computer to the logical unit number of the disk storage apparatus, and a logical unit correspondence setting program for storing the correspondence of the logical unit number designated by the host computer to the logical unit number of the disk storage in the logical unit number correspondence memory thereby, a plurality of host computers sharing at least one disk storage apparatus.

Magnetic disk apparatus

A document analysis system for determining format information of a document, wherein frames and a relationship of the frames are extracted from an image of an unmarked sample document, characters in a frame of the document are recognized, and an image structure is analyzed based on the frame and the recognized characters.

Document analysis system

A terminal controller detects state of a plurality of terminal devices by polling system, and the detected state is in a terminal management table possessed by the terminal controller and each terminal device, and the communication processing is performed corresponding to the table content. The terminal controller and each terminal device comprise respectively a main processor connected through a bus to a main memory and a communication control adapter. The communication control adapter is composed of a local processor, a local memory and a communication data send/receive circuit, and terminal management table region is provided on the main memory and the local memory. The local processor executes management of the terminal management table, and rewrites the terminal management information on the local memory and at the same time transfers the terminal management information onto the main memory by the DMA function provided on the communication control adapter.

Communication processing system in which communication by terminals is

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Yokohama, Japan

Osamu Kunisaki