System for sending frames from sender to receiver using connectionless protocol and receiving acknowledging frame and retransmission request frame from receiver using connection oriented protocol

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United States of America Patent

PATENT NO 5572678
SERIAL NO

08008303

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Data communication method and system for transmitting a large amount of data via a network such as LAN to which a plurality of stations or terminals are connected, through a simplified processing procedure with high reliability and high efficiency while suppressing influence to other communications. The large amount of data is transmitted from a sender station to a plurality of receiver stations by utilizing a connectionless communication service, while inter-station reception acknowledging/retransmitting processings are performed by using a connection-oriented communication service. The large amount of data to be transmitted is divided into a plurality of blocks, and inter-block delay time is set on the basis of station status factors such as a permissible load increase rate of the CPU of the individual stations.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTDJAPAN
HITACHI MICROCOMPUTER SYSTEM LTD5-22-1 JOUSUIHON-CHO KODAIRA-SHI TOKYO 187

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Homma, Koichi Yokohama, JP 37 1038
Kagawa, Toshiya Kawasaki, JP 3 115
Kasama, Takashi Yokohama, JP 3 136
Oshima, Keiji Katsuta, JP 6 238
Sueki, Masao Hitachi, JP 2 336

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