Noise shaping circuit

Details Noise shaping circuit Noise shaping circuit

1993-02-22

1995-03-07

Young, Brian K.

Coded data generation or conversion

Quantizer

H03M 108

Patent

active

053962486

ABSTRACT:
A noise shaping circuit in which the second significant bit of quantization input data in 2's complement representation, supplied to a quantizer, is taken out after complementation by an inverter 30, while the second significant bit and following bit or bits are taken out as such without complementation, for producing a quantization is error, which is subtracted from an input signal to render it possible to abbreviate an operation of finding the quantization error. A sole inverter may be used in substitution for a circuit portion employed for finding the quantization error for significantly diminishing the circuit scale.

REFERENCES:
patent: 5227795 (1993-07-01), Yamakido et al.

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