AUDIO OUTPUT DEVICE

An audio collector collects an ambient sound near a sound-catching ear and converts the collected ambient sound into a collected-sound electrical signal. A noise canceller generates an offset sound for acoustically canceling the ambient sound based on a phase-inverted collected-sound electrical sign...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FUKUDA AKIHIRO, OKAMURA KOUJI
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 audio collector collects an ambient sound near a sound-catching ear and converts the collected ambient sound into a collected-sound electrical signal. A noise canceller generates an offset sound for acoustically canceling the ambient sound based on a phase-inverted collected-sound electrical signal obtained when a phase of the collected-sound electrical signal is inverted and emits the generated offset sound near the sound-catching ear. An ambient sound monitor generates a monitor sound which is a phase inversion sound of the ambient sound based on the phase-inverted collected-sound electrical signal and emits the generated monitor sound near the sound-catching ear.