SOUND REPRODUCTION DEVICE

[Problem] To provide a sound reproduction device that constitutes an inexpensive, high-quality and low-current-consumption piezoelectric buzzer, and that can improve the sound pressure of the piezoelectric buzzer. [Solution] This sound reproduction device is provided with: a piezoelectric buzzer 60...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ISHIGURO, Tetsuo
Format:	Patent
Sprache:	eng ; fre ; jpn
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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