Piezoelectric speaker, speaker system employing it, and electronic apparatus employing piezoelectric speaker

A piezoelectric loudspeaker includes: a diaphragm; a first piezoelectric material provided in a first area of the diaphragm; and a second piezoelectric material provided in a second area of the diaphragm different from the first area. The second area has a sound reproduction band different from that...

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Bibliographic Details
Main Authors NAKAJIMA SHOJI, KOURA SATOSHI, TERADA JIRO, MIZONE SHINYA
Format Patent
LanguageEnglish
Published 02.11.2005
Edition7
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:A piezoelectric loudspeaker includes: a diaphragm; a first piezoelectric material provided in a first area of the diaphragm; and a second piezoelectric material provided in a second area of the diaphragm different from the first area. The second area has a sound reproduction band different from that of the first area. This piezoelectric loudspeaker has a wide reproduction frequency range.
Bibliography:Application Number: CN200380100418