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Scaling device as for quantized B-Y signal

  • US 4,556,900 A
  • Filed: 05/25/1983
  • Issued: 12/03/1985
  • Est. Priority Date: 05/25/1983
  • Status: Expired due to Fees
First Claim
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1. Signal processing apparatus comprising:

  • a source of substantially uniformly quantized signals having N possible levels, wherein the number of levels of said quantized signals utilized is KN, where N is a positive integer and K is a number between zero and unity;

    first processing means, coupled to said source, for processing said quantized signals, said processing including at least one operation producing modified quantized signals having more than N possible levels;

    scaling means, coupled to said processing means, for scaling said modified quantized signals by a predetermined factor having a value greater than unity but not exceeding 1/K; and

    second processing means, coupled to said scaling means, for developing output signals having not more than N possible levels in response to said scaled modified quantized signals,whereby said output signals utilize a number of levels exceeding said KN number of levels.

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