Patent ID: 7711067

Claim:
A method for conditioning a signal into a desired signal, comprising non-linear signal processing in n steps, where n≧2; each step of the n steps in turn comprising: providing an input main signal; providing an insertion source signal; non-linear signal processing of the insertion source signal, giving a processed insertion signal representing an extracted feature from the insertion source signal, the extracted feature being represented in the same scale as the input main signal of respective step; and combining a signal representative of the input main signal with the processed insertion signal multiplied by a reinsertion factor (k 1 -k n ) into an output main signal; whereby the output main signal being the input main signal of a subsequent step; and whereby the reinsertion factor (k 2 -k n ) of at least one of the n steps is larger than the reinsertion factor (k 1 -k n−1 ) of a preceding step.