Noise cancellation apparatus and method

Noise cancellation apparatus and method

An apparatus for canceling noise in a PC environment includes a receiver positioned inside the computer case that inputs noise inside the computer case, a processor coupled to the receiver and having a waveform generation device that generates a cancellation waveform that is inverse to the waveform...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HSU, LIANG-HAO, YEH, TSUEII, CHU, PING-YING
Format: Patent
Sprache:eng
Schlagworte:
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PHYSICS
SOUND-PRODUCING DEVICES
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Beschreibung
Zusammenfassung:An apparatus for canceling noise in a PC environment includes a receiver positioned inside the computer case that inputs noise inside the computer case, a processor coupled to the receiver and having a waveform generation device that generates a cancellation waveform that is inverse to the waveform of the input noise, and a speaker coupled to the processor for broadcasting the cancellation waveform. A method for canceling noise in a PC environment includes inputting a noise, determining a cyclical waveform that is representative of the noise, generating a cancellation waveform that is the reverse of the cyclical waveform, and mixing the sound from the cancellation waveform with the noise.