Sound reproduction device and portable terminal apparatus

The present invention is directed to a sound reproduction device which includes an LCD (20), which is an exemplary front panel, a case (22), and an electromechanical acoustic transducer (23). TheLCD (20) isoperabletoperformapredeterminedoperation in response to an electrical signal applied thereto....

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Saiki, Shuji, Usuki, Sawako
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS TELEPHONIC COMMUNICATION TRANSMISSION
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