A noise cancelling circuit (10) is used with a D/A converter, the converter including a first modulator (11) and a data output. The circuit (10) has an error measuring arrangement (12, 13, 14) for measuring a quantization error signal of the modulator (11). A filter (19) receives the error ...http://www.google.fr/patents/US5724038?utm_source=gb-gplus-shareBrevet US5724038 - Noise cancelling circuit and arrangement
