Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
2004-09-28
2009-10-13
Ni, Suhan (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S328000, C128S867000
Reexamination Certificate
active
07602933
ABSTRACT:
An ear piece device comprising a generally cone-shaped article made of pliable material dimensioned for fitting the ear canal of a user. In one embodiment, one canal extends through a portion of the ear piece to provide an opening for communication between a person's inner ear and an environment outside the person's ear. The ear piece has a plurality of fold lines provided to facilitate the reversible collapsing of the cone into a star-like configuration when sufficient outside pressure is applied thereto.
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patent: 6000492 (1999-12-01), Puthuff et al.
patent: 6513621 (2003-02-01), Deslauriers et al.
Cartwright Kristopher L.
Morgan Richard B.
Ni Suhan
Sheridan & Ross P.C.
Westone Laboratories, Inc.
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