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Data communication apparatus achieving efficient use of the media

  • US 5,592,483 A
  • Filed: 06/06/1995
  • Issued: 01/07/1997
  • Est. Priority Date: 07/21/1994
  • Status: Expired due to Term
First Claim
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1. A data communication apparatus which carries out data communication between a plurality of apparatuses which share same media, comprising:

  • transmitted packet generating means for generating a packet to be transmitted to said media;

    transmitting means for transmitting said generated packet to said media;

    packet receiving means for receiving a received packet from said media;

    packet reproducing means for reproducing said received packet;

    means for detecting a detected time when said transmitting means desires data transmission;

    first time setting means for setting a first prescribed time period from said detected time when said transmitting means desires data transmission;

    first determining means for determining whether data communication is being carried out between said plurality of apparatuses or not and contents thereof within said first prescribed time period by means of said packet receiving means and said packet reproducing means;

    second time setting means for setting a second time period according to a type of a determined packet determined by said first determining means, when said first determining means determines that data communication is being carried out between other apparatuses; and

    controlling means for controlling said transmitting means to transmit a prescribed packet according to said determined packet after lapse of said first prescribed time period and said second time period.

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