Bose Corporation

Nicholas John Joseph

Christopher A Pare

Andrew D Munro

Prateek Nath

Marek Kawka

Adam Sears

Lei Cheng

Wit Bushko

Brock N Jacobites

Thomas Landemaine

Benjamin G K Peterson

An electro-acoustic driver includes a diaphragm formed of a compliant material, a bobbin configured to hold a winding of an electrical conductor and a housing having a housing axis that is substantially coaxial with the bobbin. The diaphragm is fixed to one end of the housing and has a substantially planar shape when the diaphragm is at rest. A stiffening element is fixed to an inner region of a surface of the diaphragm. A motion of the bobbin along a bobbin axis generates a movement of the inner region of the diaphragm to thereby generate an acoustic signal that propagates from the diaphragm.

Electro-acoustic driver having compliant diaphragm with stiffening element

An electro-acoustic transducer is provided that comprises a diaphragm and a magnet assembly comprising a magnet and a back plate. The back plate comprises at least one first vent. The diaphragm generates sound during a movement of the diaphragm relative to the back plate. The transducer further comprises a printed circuit board comprising at least one second vent and a cavity between the printed circuit board and the back plate that separates the at least one first vent from the at least one second vent.

Microspeaker acoustical resistance assembly

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Boston, MA, United States of America

Nicholas John Joseph