Patent ID: 9613615
Date: 2017-04-04
CPC Classifications: G10K,H04R

Claim:
1. A noise cancellation system, comprising: a loudspeaker, a first microphone and a second microphone, a housing configured to be mounted at an ear of a user, wherein the loudspeaker, the first microphone and the second microphone are installed in the housing, and a processing unit coupled to the loudspeaker, the first microphone and the second microphone, and configured to generate a noise cancelling signal based on at least one of a first audio signal from the first microphone and a second audio signal from the second microphone, wherein the noise cancelling signal, when being output via the loudspeaker, at least partially compensates for environmental noise in the ear of the user, and wherein the noise cancellation system is configured such that, when the housing is mounted at the ear of the user, the first microphone and the second microphone are located between the loudspeaker and an eardrum of the ear, and wherein the noise cancelling signal is a feedback noise cancelling signal.