Patent ID: 8682250

Claim:
A noise cancellation system, comprising: a first input for receiving a first audio signal comprising signals from a plurality of microphones; a second input for receiving a second audio signal; a third input for receiving a third audio signal; a first combiner, for combining said third audio signal and a first noise cancellation signal and generating a first audio output signal; a first noise cancellation block for receiving said first audio signal and generating the first noise cancellation signal, wherein a second combiner is used to combine the signals from the plurality of microphones and pass the combined signals to the first noise cancellation block; a second noise cancellation block for receiving said second audio signal and a part of said first audio signal, as selected from only one of the microphones, and applying noise cancellation to generate a second audio output signal; and a selector, for selecting the signal from only one of the microphones, and for passing the selected signal to the second noise cancellation block.