公开(公告)号：US4766590A

公开(公告)日：1988-08-23

申请号：US792319

申请日：1985-10-28

申请人： Takuji Hamada ,  Masahiro Takahashi ,  Kotaro Hirasawa ,  Jushi Ide ,  Hitoshi Fushimi ,  Seiichi Yasumoto

发明人： Takuji Hamada ,  Masahiro Takahashi ,  Kotaro Hirasawa ,  Jushi Ide ,  Hitoshi Fushimi ,  Seiichi Yasumoto

IPC分类号： H04L12/42 ,  H04Q11/00 ,  H04J3/00

CPC分类号： H04L12/42

摘要： A loop transmission system having a plurality of data processor connected through respective transmission station with a common loop transmission line is disclosed. This system has a concentrator connected with a plurality of transmission stations through respective loop transmission lines. The concentrator changes the order of connection said loop transmission lines thereby to change the order of connected of said transmission stations on said loop transmission lines.

摘要翻译： 公开了一种具有多个数据处理器的环路传输系统，该多个数据处理器通过相应的传输站与公共环路传输线相连。 该系统具有通过各个环路传输线与多个发送站连接的集中器。 集中器改变所述环路传输线路连接的顺序，从而改变所述环路传输线上所述传输站的连接顺序。

公开(公告)号：US4704714A

公开(公告)日：1987-11-03

申请号：US677242

申请日：1984-12-03

申请人： Hiroshi Tomizawa ,  Masakazu Okada ,  Seiichi Yasumoto ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Ken Onuki ,  Masahiro Takahashi ,  Takuji Hamada

发明人： Hiroshi Tomizawa ,  Masakazu Okada ,  Seiichi Yasumoto ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Ken Onuki ,  Masahiro Takahashi ,  Takuji Hamada

IPC分类号： H04L12/437 ,  H04J3/14 ,  H04Q9/00

CPC分类号： H04L12/437

摘要： A looped data transmission system has a pair of looped transmission lines forming two transmission systems having different transmission directions, and a plurality of stations including at least one control station connected to said transmission lines of the two transmission systems. If a fault occurs in the two transmission lines of the two transmission systems in the same section, a loopback configuration is established such that stations adjacent to the faulty section send signals from one system back to the other system. With the loopback configuration being established, the stations which have received supervisory signals sent from a loopback end station send them back to the transmission line of the other system. When one of the loopback end stations has received a supervisory signal from the direction of the faulty section, it is judged that a portion of the faulty section is recovered, and the result of the judgement is communicated to the control station.

摘要翻译： 循环数据传输系统具有形成具有不同传输方向的两个传输系统的一对循环传输线，以及包括连接到两个传输系统的所述传输线的至少一个控制站的多个站。 如果在同一部分的两个传输系统的两个传输线路中发生故障，则建立回送配置，使得与故障部分相邻的站点将信号从一个系统发送回另一个系统。 在建立环回配置的情况下，已经接收到从环回端站发送的监控信号的站将它们发回到另一系统的传输线。 当其中一个环回终端站从故障部分的方向接收到监控信号时，判断有故障部分的一部分被恢复，并将判断结果通知给控制站。

公开(公告)号：US4530085A

公开(公告)日：1985-07-16

申请号：US482701

申请日：1983-04-06

申请人： Takuji Hamada ,  Masahiro Takahashi ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Seiichi Yasumoto

发明人： Takuji Hamada ,  Masahiro Takahashi ,  Sadao Mizokawa ,  Hitoshi Fushimi ,  Seiichi Yasumoto

IPC分类号： H04L1/22 ,  H04B1/74 ,  H04L12/437 ,  H04J3/14 ,  H04Q9/00

CPC分类号： H04L12/437 ,  H04B1/74

摘要： This invention discloses a loop-back control method for loop-type data transmission systems in which, when a trouble occurs on both transmission lines of two systems, two stations adjacent to the trouble region return signals toward a control station in response to a command from the control station, thereby to separate the trouble region and continue the operation. According to this invention, when the control station detects the occurrence of a trouble on the transmission lines of the two systems, it sends out a broadcast command to search for the trouble point to the transmission lines of both systems and thereafter a loop-back command is issued so that the stations adjacent to the trouble point can loop-back the transmission.

摘要翻译： 本发明公开了一种环路数据传输系统的环回控制方法，其中当两个系统的两条传输线路发生故障时，与故障区域相邻的两个站点响应于来自控制站的命令向控制站返回信号 控制站，从而分离故障区域并继续操作。 根据本发明，当控制站检测到两个系统的传输线路出现故障时，它发出广播命令以搜索到两个系统的传输线路的故障点，然后再发送一个环回命令 被发出使得与故障点相邻的站可以环回传输。

公开(公告)号：US4432054A

公开(公告)日：1984-02-14

申请号：US297405

申请日：1981-08-28

申请人： Masakazu Okada ,  Hitoshi Fushimi ,  Seiichi Yasumoto ,  Takuji Hamada

发明人： Masakazu Okada ,  Hitoshi Fushimi ,  Seiichi Yasumoto ,  Takuji Hamada

IPC分类号： H04L1/22 ,  G06F13/00 ,  G06F13/374 ,  G06F15/173 ,  H04L12/437 ,  H04Q9/00 ,  G06F3/04

CPC分类号： G06F15/17337 ,  G06F13/374 ,  H04L12/437

摘要： A duplex transmission control system having active and inactive systems for totally controlling a looped transmission line on which computers and terminal devices are connected through respective stations. Each transmission control unit is operable to transmit and receive specific data related to the priority level specified for each unit. Each transmission control unit suspends the transmission of the clock for a certain period in response to the detection of the clock suspension, then transmits the specific priority data. When a transmission control unit detects its own transmitted signal, it is designated as the active system when another transmission control unit receives the signal defining the active system, it is designated as the inactive system.

摘要翻译： 一种具有主动和非活动系统的双工传输控制系统，用于完全控制通过各个站连接计算机和终端设备的环路传输线。 每个传输控制单元可操作以发送和接收与针对每个单元指定的优先级相关的特定数据。 响应于时钟暂停的检测，每个发送控制单元暂停一段时间的发送，然后发送特定的优先级数据。 当发送控制单元检测到自己的发送信号时，当另一个发送控制单元接收到定义有源系统的信号时，将其指定为活动系统，将其指定为非活动系统。

公开(公告)号：US4416008A

公开(公告)日：1983-11-15

申请号：US215842

申请日：1980-12-12

申请人： Masahiro Takahashi ,  Takuji Hamada ,  Hitoshi Fushimi

发明人： Masahiro Takahashi ,  Takuji Hamada ,  Hitoshi Fushimi

IPC分类号： H04L1/00 ,  H04L12/423 ,  H04J3/08

CPC分类号： H04L1/0078 ,  H04L12/423

摘要： A dual loop type data highway system comprises a data highway having at least two loops for data transmission and reception, a plurality of data transmitting/receiving stations serially connected to the data highway and a control station serially connected to the data highway. The data transmitting/receiving stations each have means for detecting the beginning of a transmission cycle, one for each of the loops, and the control station has, one for each of the loops, means for detecting the end of the transmission cycle and means for permitting the transmission/reception of data between specified two of the data transmitting/receiving stations during the transmission cycle by polling, whereby an effective transmission rate is increased without considerable increase of hardware.

摘要翻译： 双循环型数据高速公路系统包括具有用于数据发送和接收的至少两个循环的数据公路，串行连接到数据高速公路的多个数据发送/接收站和串行连接到数据高速公路的控制站。 数据发送/接收站各自具有用于检测传输周期的开始的装置，每个循环一个，并且控制站具有针对每个循环的装置，用于检测传输周期的结束的装置和用于 允许通过轮询在发送周期期间在指定的两个数据发送/接收站之间发送/接收数据，由此在不显着增加硬件的情况下增加有效传输速率。

公开(公告)号：US4510494A

公开(公告)日：1985-04-09

申请号：US395327

申请日：1982-07-06

申请人： Sadao Mizokawa ,  Takuji Hamada ,  Hiroshi Tomizawa ,  Hitoshi Fushimi

发明人： Sadao Mizokawa ,  Takuji Hamada ,  Hiroshi Tomizawa ,  Hitoshi Fushimi

IPC分类号： G06F13/00 ,  H04L12/433 ,  H04Q9/00

CPC分类号： H04L12/433

摘要： A loop type data highway system in which a plurality of data transmission control stations (abbreviated herein as stations) are connected in cascade to a loop transmission line. Each of the stations responds to a polling frame inquiring of request for reservation of the transmission line. The polling frame is composed of a first field for inquiring of the line reservation request and a second field indicative of whether the line is reserved or not. Each station receives signals inputted from the upstream side along the line and sequentially repeats them to the downstream side along the line without delay. In the station having the line reservation requests, a pattern representative of the line reservation is written in the second field after reception of the first field and sends out the polling frame to the downstream. When the second field as received indicates the non-reserved state of the transmission line, transmission of data is initiated in succession to the second field.

摘要翻译： 其中多个数据传输控制站（本文中简称为站）级联连接到环路传输线路的环路型数据高速公路系统。 每个站响应询问传输线的预约请求的轮询帧。 轮询帧由用于查询线路预留请求的第一字段和指示该线路是否被保留的第二字段组成。 每个站接收沿着上游侧输入的信号，并且不间断地将它们沿着该线顺序地重复到下游侧。 在具有线路预留请求的台站中，在接收到第一场之后，在第二场中写入表示线路预约的模式，并向下游发送轮询帧。 当接收到的第二字段指示传输线的非保留状态时，数据的传输是与第二个字段相继发起的。

公开(公告)号：US4855993A

公开(公告)日：1989-08-08

申请号：US158696

申请日：1988-02-22

申请人： Takuji Hamada ,  Masahiro Takahashi ,  Katsuhiko Yoneda ,  Ken Onuki ,  Toshihiko Uchiyama

发明人： Takuji Hamada ,  Masahiro Takahashi ,  Katsuhiko Yoneda ,  Ken Onuki ,  Toshihiko Uchiyama

IPC分类号： H04L12/437

CPC分类号： H04L12/437

摘要： A ring network data transmission system includes a plurality of transmission apparatuses, at least one terminal connected to each of the transmission apparatuses and double ring transmission paths interconnecting the transmission apparatuses in a ring-like system configuration so that terminals can communicate with one another through the associated transmission apparatuses. When a transmission fault occurs in the network, the transmission apparatus which can serve as the master station issues to all of the other transmission apparatuses a command for searching the fault location. In response to the reception of the command, each of the other transmission apparatuses sends out a monitor signal containing its own address and at the same time checks monitor signal received. Through collation of the address contained in the received monitor signal with the address information arrayed in the order in which the transmission apparatuses are interconnected, the number of bypassed transmission apparatuses existing between each transmission apparatus and the transmission apparatus sending out the monitor signal is determined. By comparing this number with a predetermined maximum permissible number of the stages allowable to be bypassed, the faulty location is detected. With such an operation, automatic reconfiguration operation of double ring configuration can be stabilized.

公开(公告)号：US4604742A

公开(公告)日：1986-08-05

申请号：US599165

申请日：1984-04-11

申请人： Takuji Hamada ,  Masahiro Takahashi ,  Sadao Mizokawa

发明人： Takuji Hamada ,  Masahiro Takahashi ,  Sadao Mizokawa

IPC分类号： H04L12/433 ,  H04J3/16

CPC分类号： H04L12/433

摘要： A loop type data transmission system based on a token pass principle, wherein a station whose transmission of data is completed passes therethrough a token to the stations located downstream. The station demanding the transmission acquires the right of transmission when received the token, to perform data transmission with a given station. The token signal is classified into a free token representative of the freedom of the line and a busy token representative of occupation of the line. Among a plurality of stations, only one station is destined to execute detection of transmission failure and remedy thereof. This one station is adapted to convert the free token detected upon reconstitution and repeating of the received information into the busy signal and subsequently re-send the free token. The station having sent out the free token after the completed data transmission is transferred to the state for reconstituting and repeating the received information when the busy token returns to that station.

摘要翻译： 基于令牌通过原理的循环型数据传输系统，其中数据传输完成的站点通过令牌到位于下游的站。 要求传输的站在接收到令牌时获取传输权，与给定站进行数据传输。 令牌信号被分类为代表行的自由的空闲符号和代表线的占用的繁忙标记。 在多个站中，只有一个站点注定执行传输失败的检测和补救。 该一个站适用于将重建时检测到的空闲令牌转换成忙信号并重新发送该自由令牌。 在完成的数据传输之后已经发送了空闲令牌的站被转移到忙碌令牌返回到该站时重新构建并重复接收到的信息的状态。

公开(公告)号：US06728541B2

公开(公告)日：2004-04-27

申请号：US09790666

申请日：2001-02-23

申请人： Yoshinori Ohkura ,  Masahiro Takahashi ,  Hideaki Masuko ,  Shinichi Ueda ,  Takuji Hamada

发明人： Yoshinori Ohkura ,  Masahiro Takahashi ,  Hideaki Masuko ,  Shinichi Ueda ,  Takuji Hamada

IPC分类号： H04Q720

CPC分类号： H04B7/2606 ,  H04B7/15542 ,  H04L12/42 ,  H04W16/26

摘要： A plurality of radio relay stations 1 are connected so that bi-directional ring-like paths are made up of radio transmission paths. The respective radio relay stations 1 bidirectionally transmit data inputted from terminals placed thereunder onto the bidirectional ring-like paths respectively. The respective data are respectively received by radio relay stations 2 having data destination terminals placed thereunder along the bidirectional ring-like paths. Each radio relay station, which has received the data destined for the terminals placed thereunder from both directions, transmits earlier incoming data to each terminal placed thereunder and discards later incoming data. Thus, a radio relay system can be implemented which is capable of relaying data with a high degree of reliability.

摘要翻译： 连接多个无线中继站1，使得双向环状路径由无线传输路径组成。 各无线电中继站1将分别从其放置的终端输入的数据双向传输到双向环状路径上。 相应的数据分别由具有沿着双向环状路径放置在其下的数据目的地终端的无线电中继站2接收。 已经接收到从两个方向放置在其下的终端的数据的每个无线电中继站将较早的进入数据发送到放置在其下的每个终端，并丢弃稍后的传入数据。因此，可以实现能够中继数据的无线电中继系统 具有很高的可靠性。

公开(公告)号：US4949336A

公开(公告)日：1990-08-14

申请号：US218130

申请日：1988-07-13

申请人： Takuji Hamada ,  Masahiro Takahashi ,  Katsuhiko Yoneda ,  Masakazu Okada

发明人： Takuji Hamada ,  Masahiro Takahashi ,  Katsuhiko Yoneda ,  Masakazu Okada

IPC分类号： H04L12/43

CPC分类号： H04L12/43

摘要： In an annular transmitting system including a ring-like transmission path realized by interconnecting serially a plurality of transmission stations in an annular form, at least one of the transmissions stations generating repetitively a transmitting frame constituted by a plurality of transmission units referred to as time slots, the frame being circulated along the transmission path, wherein transmission of information among transmission stations is performed in such a manner in which each of the transmission stations having a request to send information inserts the information in the slots by dividing the information, which information is ultimately fetched by the transmission station destined to receive that information, a multi-slot access system in which each of the time slots is provided with an area indicating whether the associated time slot is "free" or "busy", wherein the transmission station having a request to send information determines that the sending of the information is enabled when it is detected that one time slot located at a particular position within the transmitting frame is "free" or when it is detected that the time slot succeeding immediately to the "busy" slot is "free", to thereby set successively those usable time slots which succeed to the detected "free" time slot to the "busy" state and insert the information in these usable time slots.