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Digital signal level translator

  • US 5,204,557 A
  • Filed: 10/15/1991
  • Issued: 04/20/1993
  • Est. Priority Date: 10/15/1991
  • Status: Expired due to Term
First Claim
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1. A digital signal level translator for translating an unbalanced digital signal to a balanced digital signal, said digital signal level translator comprising:

  • first translator means for receiving and translating a first unbalanced digital signal to a second unbalanced digital signal, wherein said first unbalanced digital signal has a first unbalanced dynamic signal range bounded by a first level and a reference level, and wherein said second unbalanced digital signal has a second unbalanced dynamic signal range bounded by a second level and said reference level;

    second translator means for receiving and translating said first unbalanced digital signal to a first balanced digital signal, wherein said first balanced digital signal has a first balanced dynamic signal range bounded by said first level and a third level; and

    output buffer means for receiving said second unbalanced digital signal and said first balanced digital signal, and for providing a second balanced digital signal, wherein said second balanced digital signal has a second balanced dynamic signal range bounded by said second level and said third level;

    wherein said first and second levels have a first polarity relative to said reference level, and said third level has a second polarity relative to said reference level.

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