ClearOne Gets New Patent on Echo Cancellation using Beamforming Microphones

ClearOne has been awarded a new patent on a system and method for combining echo cancellation and beamforming microphone arrays. This patented technology is one of many innovations that help ClearOne conferencing systems to provide the best, clearest, and most intelligible audio possible.

On April 25, 2017, the U.S. Patent and Trademark Office (USPTO) issued United States Patent number 9,635,186 entitled “A Conferencing Apparatus that combines a Beamforming Microphone Array with an Acoustic Echo Canceller.” The ‘186 patent covers, among other things, the method of first using a beamforming algorithm to generate several fixed beams, followed by performing acoustic echo cancellation on each beam, selecting a beam for transmission and inhibiting the system from switching beams when the remote party speaks. Without this protection, whenever the remote party speaks they may hear noise fluctuations, distortions and/or ambient sound changes that detract from conference quality and clarity.

Here is the actual patent filing.

ClearOne is here.