Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate
2006-09-22
2010-11-23
Tsang, Fan (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having acoustic wave modifying structure
C381S353000, C181S160000
Reexamination Certificate
active
07840023
ABSTRACT:
Micro-speaker assemblies and mobile terminals including micro-speaker assemblies are provided. The micro-speaker assemblies include a micro-speaker positioned in a housing. A first forward tuning volume is positioned adjacent a front face of the micro-speaker. A passageway extends from the first forward tuning volume to an opening in the housing. A second forward tuning volume in fluid communication with the passageway is positioned at a location between the first forward tuning volume and the opening in the housing. The second forward tuning volume, the first forward tuning volume and the passageway define a double-resonator that tunes a frequency response of the micro-speaker. Methods for tuning micro-speakers are also provided.
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Dabney Phylesha
Myers Bigel & Sibley & Sajovec
Sony Ericsson Mobile Communications AB
Tsang Fan
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