ACOUSTIC OUTPUT APPARATUS

The problem to be solved is to improve a noise cancelling function. A detection microphone, a speaker, and a housing are included. The detection microphone detects noise and has an input vibrating plate. The speaker has an output vibrating plate. The housing accommodates at least the speaker and the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TOBISE, HAYAMI, OIDE, KENICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SOUND-PRODUCING DEVICES
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