Acoustic device with passive radiators

An acoustic device includes an enclosure defining an internal cavity. A first passive radiator arrangement including a first passive radiator diaphragm is arranged along a first side of the internal cavity and a second passive radiator diaphragm arranged along a second, opposite side. The first pass...

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Bibliographic Details
Main Authors Tiene, Michael, Litovsky, Roman N
Format Patent
LanguageEnglish
Published 23.10.2018
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:An acoustic device includes an enclosure defining an internal cavity. A first passive radiator arrangement including a first passive radiator diaphragm is arranged along a first side of the internal cavity and a second passive radiator diaphragm arranged along a second, opposite side. The first passive radiator arrangement is mounted such that the first passive radiator diaphragm and the second passive radiator diaphragm can vibrate relative to the enclosure, and the first and second passive radiator diaphragms are coupled together such that there is substantially no relative movement therebetween. A second passive radiator arrangement includes a third passive radiator diaphragm. The second passive radiator arrangement is mounted such that the third passive radiator diaphragm can vibrate relative to the enclosure. An active electro-acoustic transducer arranged to radiate acoustic energy into the internal cavity and thereby excite vibration of the first, second, and third passive radiator diaphragms.
Bibliography:Application Number: US201715463535