<p>A time-discrete amplitude-continuous or a time-discrete amplitude-discrete signal (i) is converted into a 1-bit encoded signal by means of a quantizer (14), the quantization-error signal being fed back via a loop filter (28). The transfer function of the loop filter is given by H(Z) = 1 - (Z-b)<n>/(Z-a)<n>, where n >/= 3, b SIMILAR 1 and 0 < a < b. In order to preclude instabilities the input signal of the loop filter (28) is limited by a limiter (23).</p>
申请公布号
EP0241077(B1)
申请公布日期
1991.09.18
申请号
EP19870200562
申请日期
1987.03.24
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
STIKVOORT, EDUARD FERDINAND;VAN ROERMUND, ARTHUR HERMANUS MARIA;NAUS, PETER JOHANNES ANNA