A few months ago, I was frustrated at having to use headphones to talk to my family over skype. The problem? Echo. Every time my family spoke to me they could hear their own voice coming back over the microphone and confusing the conversation. The epiphany was why cant the noise cancellation techniques of travel headphones like Bose headsets be used to stop the echo problem? I'm in the middle of the patent now and expect to have a project site up soon showing the implimentation and eventually I hope to have example software up for visitors to test to see how well it works... stand by for more soon.