Noise shaping circuit
A noise shaping circuit is disclosed 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 w...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A noise shaping circuit is disclosed 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 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. |
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