"A computer chip modelled on the human ear could be used in universal receivers for radio-frequency signals ranging from cellphone and wireless internet transmissions to radio and television broadcasts.", so says New Scientist.
We normally tune to a narrow band signal of a few kHz wide but this device can receive 600 mHz to 8 GHz in one chunk. Wide band receivers similar to this are normally very complex, very expensive and consume vast amounts of power. Scant information at present but you can read about it here...
Human ear inspires universal radio chip - tech - 13 June 2009 - New Scientist
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