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    Media access control filtering apparatus for high speed switching and operating method thereof
    3.
    发明授权
    Media access control filtering apparatus for high speed switching and operating method thereof 有权

    公开(公告)号：US09948480B2

    公开(公告)日：2018-04-17

    申请号：US14601983

    申请日：2015-01-21

    申请人： LSIS CO., LTD.

    发明人： Gyu Sung Bae

    IPC分类号： H04L12/43 ,  H04L12/427 ,  H04L12/413 ,  H04L12/42

    CPC分类号： H04L12/43 ,  H04L12/413 ,  H04L12/42 ,  H04L12/427

    摘要： A media access control (MAC) filtering method is provided. The MAC filtering method includes setting a variable of condition on a target frame to be re-transmitted, with a relay control logic; receiving data from a physical layer; storing the received data in a relay buffer; determining whether to re-transmit the receive data; monitoring a transmission state of a MAC control logic and transmitting the received data while the MAC control logic is not used, to prevent data collision, when as a result of the determination that the receive data needs to be re-transmitted; and storing information that the received data is being transmitted, into a transmit state memory in the MAC control logic, when the received data is transmitted.

    SYSTEM AND METHOD FOR SETTING REDUNDANT PATH SEGMENTS IN A MULTI-RING COMMUNICATION NETWORK
    4.
    发明申请
    SYSTEM AND METHOD FOR SETTING REDUNDANT PATH SEGMENTS IN A MULTI-RING COMMUNICATION NETWORK 有权
    用于在多通信通信网络中设置冗余路段的系统和方法

    公开(公告)号：US20120236710A1

    公开(公告)日：2012-09-20

    申请号：US13401209

    申请日：2012-02-21

    申请人： Yuji TOCHIO

    发明人： Yuji TOCHIO

    IPC分类号： H04L12/437 ,  H04L12/427

    CPC分类号： H04L12/427 ,  H04L12/40189 ,  H04L12/437 ,  H04L12/4637

    摘要： In a multi-ring communication network, first and second rings include first and second connection nodes, respectively, that are adjacently connected to each other. The first connection node receives, from adjacent nods, traffic information storing a pair of input and output node identifiers in association with each of storage areas included in a frame to be transmitted, where the input node identifier identifies an adjacent node from which data is inputted, and the output node identifier identifies an adjacent node to which the data is outputted. When the received traffic information includes the output node identifier identifying the second connection node, the first connection node sets a plurality of redundant path segments each including the second connection node, based on the received traffic information, where the plurality of redundant path segments includes a currently-used path segment.

    摘要翻译： 在多环通信网络中，第一和第二环分别包括彼此相邻连接的第一和第二连接节点。 第一连接节点从相邻节点接收与要发送的帧中包括的每个存储区域相关联地存储一对输入和输出节点标识符的业务信息，其中输入节点标识符标识从其输入数据的相邻节点 ，并且输出节点标识符识别输出数据的相邻节点。 当接收到的交通信息包括标识第二连接节点的输出节点标识符时，第一连接节点基于接收到的交通信息设置每个包括第二连接节点的多个冗余路径段，其中多个冗余路径段包括 当前使用的路径段。

    Data transmission system using an optical fiber loop
    6.
    发明授权
    Data transmission system using an optical fiber loop 失效
    数据传输系统采用光纤环路

    公开(公告)号：US5363367A

    公开(公告)日：1994-11-08

    申请号：US937397

    申请日：1992-08-31

    申请人： Isao Kobayashi ,  Hirotaka Kumata

    发明人： Isao Kobayashi ,  Hirotaka Kumata

    IPC分类号： H04L12/427 ,  H04L1/16 ,  H04J3/16

    CPC分类号： H04L12/427

    摘要： A data transmission system comprising a plurality of data processing units connected to each other by optical fiber. Each data processing unit comprises optical/electrical converter means for converting an optical signal from the preceding data processing unit through the optical fiber to an electrical signal, electrical/optical converter means for converting an electrical signal to be sent to the succeeding data processing unit to an optical signal, a data receiving unit for receiving the converted electrical signal, means for determining whether or not the received signal was sent from the local data processing means, and gate means connected between the optical/electrical converter means and the electrical/optical converter means, the gate means being closed when the local data processing means performs data transmission and opened for alternative data receiving/passing.

    摘要翻译： 一种数据传输系统，包括通过光纤相互连接的多个数据处理单元。 每个数据处理单元包括用于将来自前一数据处理单元的光信号通过光纤转换为电信号的光/电转换器装置，用于将要发送给后续数据处理单元的电信号转换为后续数据处理单元的电/光转换器装置， 光信号，用于接收转换的电信号的数据接收单元，用于确定接收信号是否从本地数据处理装置发送的装置，以及连接在光/电转换器装置和电/光转换器之间的门装置 意味着，当本地数据处理装置执行数据传输并打开用于替代数据接收/传递时，门装置被关闭。

    Ring-type local area network
    7.
    发明授权
    Ring-type local area network 失效
    环型局域网

    公开(公告)号：US5257259A

    公开(公告)日：1993-10-26

    申请号：US710826

    申请日：1991-06-05

    申请人： Kanehisa Tsurumi

    发明人： Kanehisa Tsurumi

    IPC分类号： H04L12/427 ,  H04L12/56

    CPC分类号： H04L12/427

    摘要： In a ring-type LAN, in the decoder of a communication station, a symbol series is decoded from a signal transmitted through the medium of a transmission path and then a synchronization symbol is detected and a first symbol series is synchronized with the synchronization symbol and outputted. Next, in the plurality of dividers of the communication station, only the specific symbols which are used in the LANs of the different protocols are extracted from the first symbol series and a second symbol series are created and outputted. Then, in the plurality of LAN connectors, the second symbol series are inputted and the processing and replacement of the second symbol series is conducted by means of predetermined protocols and new symbol series are outputted. Next, in the combiner, the plurality of symbol series are combined and a new symbol series is outputted. Next, in the encoder, a synchronization symbol is encoded at regular intervals into the symbol series outputted from the combiner and a new symbol series is created. At this time, in the case in which a plurality of symbol series does not exist, a symbol which indicates the nonexistence of a symbol series is inserted and a new symbol series is created. Then this symbol series is encoded into a transmission signal and outputted. The above operations are conducted in sequence in each of the communication stations.

    摘要翻译： 在环型LAN中，在通信站的解码器中，从通过传输路径的介质发送的信号对符号序列进行解码，然后检测同步符号，并且第一符号序列与同步符号同步， 输出。 接下来，在通信站的多个分频器中，仅从第一符号序列中提取在不同协议的LAN中使用的特定符号，并且创建并输出第二符号序列。 然后，在多个LAN连接器中，输入第二符号序列，并且通过预定协议进行第二符号序列的处理和替换，并输出新的符号序列。 接下来，在组合器中，组合多个符号序列，并输出新的符号序列。 接下来，在编码器中，将同步符号以规则的间隔编码到从组合器输出的符号序列中，并且创建新的符号序列。 此时，在不存在多个符号序列的情况下，插入表示不存在符号序列的符号，并创建新的符号序列。 然后将该符号序列编码为发送信号并输出​​。 上述操作在每个通信站中依次进行。

    Dynamic bandwidth sharing on a fiber loop using silicon photonics
    8.
    发明授权
    Dynamic bandwidth sharing on a fiber loop using silicon photonics 有权

    公开(公告)号：US11184103B1

    公开(公告)日：2021-11-23

    申请号：US16882411

    申请日：2020-05-22

    申请人： HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    发明人： Frank R. Dropps ,  Mir Ashkan Seyedi

    IPC分类号： H04J14/02 ,  H04L12/427

    摘要： A fiber loop includes a plurality of processors coupled to each other and a controller coupled to each of the plurality of processors. The controller is configured to: assign to each of the plurality of processors a number of wavelengths for interconnect communications between the plurality of processors; receive, from a first processor of the plurality of processors, a request for one or more additional wavelengths; determine whether an interconnect bandwidth utilization on the fiber loop is less than a threshold; and in response to determining that the interconnect bandwidth utilization on the fiber loop is less than the threshold, reassign, to the first processor, one or more wavelengths that are assigned to a second processor of the plurality of processors.

    Communication device and automobile including the same
    9.
    发明授权
    Communication device and automobile including the same 有权

    公开(公告)号：US10972308B2

    公开(公告)日：2021-04-06

    申请号：US16617872

    申请日：2018-04-17

    申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

    发明人： Tomohiko Yano ,  Hiroki Yamashita

    IPC分类号： H04L12/42 ,  H04L12/427 ,  H04L12/437

    摘要： A communication device includes a master station, a ring-type transmission line whose start point and end point are connected to the master station, and a plurality of slave stations connected to the ring-type transmission line in parallel. The master station transmits a signal and feeds electric power from both of the start point and the end point of the ring-type transmission line. Each of the slave stations includes an impedance variable element connected to the ring-type transmission line in parallel, and values are set to the impedance variable elements in accordance with the connection positions of the slave stations.