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    System and method for communication between nodes of a closed loop local communication path
    7.
    发明授权
    System and method for communication between nodes of a closed loop local communication path 失效
    闭环本地通信路径的节点间通信的系统和方法

    公开(公告)号：US4604693A

    公开(公告)日：1986-08-05

    申请号：US544969

    申请日：1983-10-24

    申请人： George E. Chadima, Jr. ,  Joseph J. Kubler

    发明人： George E. Chadima, Jr. ,  Joseph J. Kubler

    IPC分类号： G06F13/376 ,  H04L12/433 ,  G06F13/38

    CPC分类号： G06F13/376 ,  H04L12/433

    摘要： In an exemplary embodiment a transmission link switch is provided at each node. In a transmission mode, the switch provides a transmission path which transmits incoming messages directly to the node output without any processing delay. In the cutoff mode of the switch, the associated data processor still receives messages from the node input, but the direct path from the node input to node output is interrupted. During the sending of messages and responses thereto, the link switches at the sending and responding nodes are operated so as to prevent the messages from making multiple traverses of the loop communications path while also avoiding the occurrence at other nodes of a communications gap which would permit such nodes to interfere with the exchange of messages. The arrangement is such that each node can be implemented with low cost integrated circuit modules. No common timing link is required between the nodes. Transmission of requests for control of communication and the actual transmission of desired information between the nodes all take place via a single channel of the loop communications path.

    摘要翻译： 在示例性实施例中，在每个节点处提供传输链路交换机。 在传输模式中，交换机提供传输路径，将传入的消息直接发送到节点输出，而没有任何处理延迟。 在交换机的截止模式下，相关的数据处理器仍然从节点输入接收消息，但是从节点输入到节点输出的直接路径中断。 在发送消息和响应期间，在发送和响应节点处的链路交换被操作，以便防止消息进行环路通信路径的多次遍历，同时也避免在通信间隙的其他节点处的发生，这将允许 这样的节点会干扰消息的交换。 这样的布置使得每个节点可以用低成本的集成电路模块来实现。 在节点之间不需要公共的时序链接。 传输通信控制请求和节点之间所需信息的实际传输全部通过环路通信路径的单个信道进行。