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Methods and apparatus for quantizing, encoding and decoding and recording media therefor

  • US 5,774,844 A
  • Filed: 06/22/1995
  • Issued: 06/30/1998
  • Est. Priority Date: 11/09/1993
  • Status: Expired due to Term
First Claim
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1. A quantizing apparatus for quantizing time domain samples or frequency domain samples of an input signal, comprising:

  • samples thereafter to further quantize, individually by one sample, each quantization error at quantization of the preceding stage to thereby decompose the time region sample or the frequency regionat least one quantizing means for quantizing the samples; and

    means for determining a quantization error based upon the samples and the quantized samples, wherein the at least one quantizing means also quantizes the quantization error to thereby decompose the samples into at least two words.

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