Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1986-10-17
1987-09-08
Miller, Charles D.
Communications: electrical
Audible indication
Percussion-type sound producer
340347AD, 340347DA, 375 34, H03M 100
Patent
active
046927379
ABSTRACT:
A time-discrete amplitude-continuous or a time-discrete amplitude-discrete signal is converted in to a 1-bit encoded signal by means of a quantizer, the quantization-error signal being fed back via a loop filter. The transfer function of the loop filter is given by H(Z)=1-(Z-b).sup.n /(Z-a).sup.n, where n.gtoreq.3, b.perspectiveto.1 and 0<a<b. In order to preclude, the input signal of the loop filter is limited by a limiter.
REFERENCES:
patent: 3793513 (1974-02-01), Kameko
patent: 4035724 (1977-07-01), Stepaenne
Naus Peter J. A.
Stikvoort Eduard F.
van Roermund Arthur H. M.
Briody Thomas A.
Gadson Gregory P.
Miller Charles D.
Streeter William J.
U.S. Philips Corporation
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