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Communication system of multi-channel access

  • US 5,835,845 A
  • Filed: 01/29/1996
  • Issued: 11/10/1998
  • Est. Priority Date: 02/02/1995
  • Status: Expired due to Fees
First Claim
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1. A multi-channel access communication system for communicating between a plurality of terminals through a transmission medium and a base station, comprising:

  • a plurality of said terminals classified into a plurality of groups, in which at least one terminal belongs to both a first group and a second group,wherein said transmission medium transmits control signals and information signals between said terminals, andwherein said base station comprises;

    a memory which stores communication status data of said terminals in each of said groups, andline control means for providing a group call function for calling all terminals belonging in each group and invalidating a group call request from a terminal in a third group to said second group in accordance with said communication status data of said memory when said one terminal belonging to said first group and said second group is in a communication state with any other terminal.

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