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Multiplex/demultiplex apparatus

  • US 4,107,469 A
  • Filed: 02/17/1977
  • Issued: 08/15/1978
  • Est. Priority Date: 02/17/1977
  • Status: Expired due to Term
First Claim
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1. A multiplexing communication system for transmitting two given data rate sources on three lower data rate communication channel means before demultiplexing to two channels at the data sink comprising, in combination:

  • first and second means for supplying first and second channels of data respectively at given substantially identical data rates;

    multiplexing means, connected to said first and second means, for interleaving incoming data consecutively on X, Y, and Z data channel output means with overhead data bits used for demultiplexing wherein only said X output means includes said overhead data bits and each of said channels operate at lower data rates than said given data rate;

    transmission means; and

    demultiplexing means, interconnected by said transmission means for receiving signals from said X, Y, and Z output means of said multiplexing means, including frame bit synchronizer means operating at the rate of said incoming X channel for demultiplexing to two output data channels operating at said given data rates in accordance with overhead data received on said X channel.

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