Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate
2011-04-12
2011-04-12
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having acoustic wave modifying structure
C381S337000, C455S350000
Reexamination Certificate
active
07925035
ABSTRACT:
An electro-acoustic communications unit (20) may include an acoustic driver (22) which, when operated, emits acoustic waves in two directions. A hermetically sealed container (24) attached to the acoustic driver may include a gas other than air. The gas may transport acoustic waves generated by the acoustic driver.
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PCT Search Report and Written Opinion, Jan. 15, 2007, 11 pages.
Ståhl Carl
Stenmark Fredrik M.
Harrity & Harrity LLP
Kuntz Curtis
Robinson Ryan
Sony Ericsson Mobile Communications AB
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