When an input digital signal, having a portion with an associated control value, is connected to a digital filter with adaptive compensation, the digital filter with adaptive compensation selects one of a plurality of coefficient scalers (9501, 9601) as directed by a control bus (990). As the input digital...http://www.google.com/patents/US6421379?utm_source=gb-gplus-sharePatent US6421379 - Digital filter with adaptive coefficients
