QUANTIZATION NOISE COMPENSATION DEVICE AND A METHOD THEREOF

摘要

PURPOSE: A device for quantization noise compensation is provided to compensate the difference of quantization by indicating the original data more efficiently as the fifth step which carries out quantization on the basis of sample ratio of the input signal. CONSTITUTION: The device comprises a first adjustment measurement which adds the quantization difference signal that is fed back from a certain circuit and the analog signal; a quantization measurement which transfers the analog input signal into discrete numerical value; a second adjustment measurement which calculates the quantization difference of adding the quantization signal and the signal before quantization; and a delay measurement which delays the quantization difference output from the first adjustment measurement signal for a certain period of time and outputs the signal by the first adjustment measurement.