专利名称：Duplex system of transmission lines in a loop network无水洗手液>斗拱模型
发明人：Kenzo Kobayashi,Yutaka Iwagaki,Mitsuyo Hasegawa,Kazushi Suganuma
申请号：US07/286614
申请日：19881219
公开号：US04930119A微生物添加剂
玻璃精雕机公开日：
19900529
橡皮弹
摘要：Disclosed is a duplex system of transmission lines in a loop network applied, for example, to a local area network. To realize an autonomous recognition of transmission line faults by each communication node and to enable a rapid and automatic reconstruction of a network, each communication node comprises a loop back circuit for effecting a loop back operation in response to a predetermined state of signals received from two directions of the duplex loop lines, and a return indication circuit for adding, to a transmitted signal a return indication that a received signal was returned when the received signal could not be passed through the node.
申请人：FUJITSU LIMITED丙酮回收
代理机构：Staas & Halsey
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