Sound canceling systems and methods

Details Sound canceling systems and methods Sound canceling systems and methods

2004-03-17

2010-11-16

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Acoustic, nonairborne vibration sensing or counterwave emission

C381S071800, C381S071600, C381S071900, C381S071110

Reexamination Certificate

active

07835529

ABSTRACT:
A system for sound cancellation includes a source microphone for detecting sound and a speaker for broadcasting a canceling sound with respect to a cancellation location. A computational module is in communication with the source microphone and the speaker. The computational module is configured to receive a signal from the source microphone, identify a cancellation signal using a predetermined adaptive filtering function responsive to acoustics of the cancellation location, and transmit a cancellation signal to the speaker.

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