发明名称 |
ADAPTIVE QUANTIZER APPARATUS USING TRAINING MODE |
摘要 |
<p>Ideally, when a signal is quantized, the range of the quantizer should be matched to the power of the signal. Disclosed herein is adaptive quantizer apparatus which utilizes a particular quantizing scheme for those communications where the power of the signal to be quantized is unknown, but remains constant for the duration of a communication. The amplitude range of an adaptive quantizer is adjusted during an initial training period to a value appropriate to the power of the applied input signal. This is accomplished by successively altering the amplitude range by a multiplicative quantity that depends upon the amplitude of the quantizer output signal and upon the time elapsed since the onset of the training period.</p> |
申请公布号 |
CA1029468(A) |
申请公布日期 |
1978.04.11 |
申请号 |
CA19750230866 |
申请日期 |
1975.07.04 |
申请人 |
WESTERN ELECTRIC COMPANY, INCORPORATED |
发明人 |
GERSHO, ALLEN;GOODMAN, DAVID J. |
分类号 |
H03M3/04 |
主分类号 |
H03M3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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