Data communication system

Communications: electrical – Continuously variable indicating – With meter reading

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Details

178 3, 370 30, 370 45, H04Q 900, H04J 106

Patent

active

044660006

ABSTRACT:
In a data communication system comprising a plurality of data stations which are interconnected by a common communication medium, simultaneously occurring prospective users of the communication medium undergo an arbitration to determine which one will gain access to it at any time. The system according to the invention provides the arbitration without negatively affecting the capacity of the communication medium. In the system, arbitration takes place during the data communication to decide who will be the next user, arbitration and communication being effected in frequency bands which differ from each other.

REFERENCES:
patent: 3832494 (1974-08-01), Seim et al.
patent: 4107471 (1978-08-01), Reed
patent: 4376278 (1983-03-01), Jacobsthal
patent: 4387425 (1983-06-01), El-Gohary

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