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Time compression multiplex digital transmission system

  • US 4,476,558 A
  • Filed: 07/29/1982
  • Issued: 10/09/1984
  • Est. Priority Date: 07/29/1982
  • Status: Expired due to Term
First Claim
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1. In a digital transmission sytem, comprising:

  • means for transmitting burst of digital signals of fixed length at fixed frame intervals, each burst including initial and final synchronization bits at the beginning and ending respectively of each burst; and

    means for receiving the bursts of digital signals, including means for establishing frame synchronization;

    the improvement comprising in the receiving means;

    gating means responsive to the absence of frame synchronization for passing all received signals to the means for establishing frame synchronization; and

    responsive to the presence of frame synchronization for passing only signals received during a window period which is coextensive with that of said bursts, the means for establishing frame synchronization.

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