Fujitsu Corporation

Kazuhisa Matsumoto

Katsuhiko Yamatsu

Koki Mie

Kenji Maeda

Yoshinobu Shimokawa

Yuji Higashihara

Kensuke Kubo

Hidetada Tanaka

Yasuyuki Sajikawa

Hikaru Udou

Mitsuhiro Noyama

A node apparatus includes a receiving unit receiving a data frame from one of adjacent nodes apparatuses; a storing unit storing an identification information management table in which frame identification information with which the data frame may be uniquely identified, and overlapped data identification information; a processor which performs a process including: judging whether or not a final destination of the received data frame is the node apparatus itself; judging whether or not a registration that matches the frame identification information of the received data frame exists in the identification information management table; judging whether or not the overlapped data identification information of the received data frame and the overlapped data identification information corresponding to the registration match; and discarding the received data frame; and performing a retransmission of the received data frame to another adjacent node that has not been a transmission destination of the data frame.

Node apparatus, data relay method and computer-readable recording medium

A data communication system includes a plurality of terminal apparatuses &num; -&num;n for periodically transmitting data and retrieving desired data accommodated in at least one time slot in received multiplex data, and a data storage and distribution apparatus for subjecting received data from the plurality of terminal apparatuses to time division multiplexing so as to produce time slots each corresponding to a respective one of the plurality of terminal apparatuses, reproducing resultant multiplex data, and distributing the multiplex data to the plurality of terminal apparatuses.

Data communication system and apparatus

Growing community of inventors

Fukuoka, Japan

Kazuhisa Matsumoto