Patent ID: 7430152
Filing Date: 2008-09-30
Classification: H04R

Abstract:
1. A system for transmitting, via a RF link, to remote equipment acoustic information having an acoustic bandwidth and a predetermined frequency spectrum; said system comprising: a) an A/D converter receiving acoustic signals each signal having a frequency within said acoustic bandwidth, said A/D converter providing a corresponding digital output for each received acoustic signal; b) four beam formers receiving said digital outputs of said A/D converter and providing beams at respective outputs for each of said corresponding digital outputs of said A/D converter, each of said four formers having an assigned sub-band, said four (4) beam formers, respectively providing sub-bands c) one or more band shifters respectively interconnected to said outputs of said beam formers, each of said one or more band shifters shifting the frequency spectrum of the assigned sub-band of a respective output of said four beam formers and providing a respective output; and, d) one or more filters receiving the output of said one or more band shifters and providing a respective output that prohibits all, but the specified range of said frequency spectrum of respective outputs of said four beam formers.