ACOUSTIC DEVICE AND NOISE CANCELING HEADPHONE

PROBLEM TO BE SOLVED: To provide an acoustic device and a noise canceling headphone that eliminate the need for adjusting an electric circuit or the like on every occasion when an input cord or the like is replaced. SOLUTION: The noise canceling headphone comprises a housing section 1 that is placed...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KITO KAZUHISA, ITO MASAHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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