Patent ID: 9729967
Date: 2017-08-08
CPC Classifications: H04R

Claim:
1. A system for performing blind signal separation, comprising: two or more output devices operative to each emit one or more output signals; an input device operative to receive a streaming input signal that is a composite of a plurality of component signals, wherein at least one of the component signals is based on the one or more output signals; a plurality of band pass filters coupled to a transducer, operative to separate the input signal into a plurality of respective frequency bands; a power analyzer coupled to the band pass filters and operative to determine the power of the input signal in each of the frequency bands and select a band in which the signal therein has the greatest power; a signal sampler coupled to the power analyzer and operative to sample the selected band's signal at a sampling rate and select one of the samples at regular intervals; a blind signal separator (BSS) coupled to the signal sampler and configured to implement a selected BSS algorithm to estimate one or more signal sources from the selected samples; and a feedback canceller (FC) coupled to the BSS and configured to: wherein the BSS algorithm is selected based on the computational and power capabilities of a processor of the input device.