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Information processing apparatus for transmitting information among a plurality of nodes and arbitration method in such information processing apparatus

  • US 5,604,748 A
  • Filed: 02/03/1995
  • Issued: 02/18/1997
  • Est. Priority Date: 02/09/1994
  • Status: Expired due to Term
First Claim
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1. An information processing apparatus for transmitting data among a plurality of nodes, comprising:

  • a common transmission line;

    a plurality of nodes which are connected by said common transmission line, each said node transmitting data to others of said nodes over said common transmission line;

    an arbiter which selectively, gives a use permission, to use said common transmission line for transmitting data, to a requesting one of said nodes on the basis of at least a use request for said common transmission line from the requesting node;

    information transmitting means, which couples said arbiter and each of said nodes, for transmitting the use request from the requesting node to said arbiter; and

    data transmission state detecting means for detecting a data transmission state of data that is transmitted on said common transmission line by monitoring for a separate signal on said common transmission line, said data transmission state detecting means notifying the detected data transmission state to said arbiter to enable said arbiter to use the detected data transmission state to give use permission to the requesting node.

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