Invention Grant
- Patent Title: In-ear earphone
- Patent Title (中): 入耳式耳机
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Application No.: US12872597Application Date: 2010-08-31
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Publication No.: US08280094B2Publication Date: 2012-10-02
- Inventor: Hannes Lehdorfer , Berthold Pavitsich , Bernhard Pinter
- Applicant: Hannes Lehdorfer , Berthold Pavitsich , Bernhard Pinter
- Applicant Address: AT Vienna
- Assignee: AKG Acoustics GmbH
- Current Assignee: AKG Acoustics GmbH
- Current Assignee Address: AT Vienna
- Agency: Brinks Hofer Gilson & Lione
- Priority: EP09450156 20090903
- Main IPC: H04R25/00
- IPC: H04R25/00

Abstract:
An earphone device converts electric signals to audible sound. The earphone includes a first electroacoustic transducer and a second electroacoustic transducer. A separating part of the earphone is positioned between the second transducer and a sound opening of a plug area of the earphone. The separating part forms a barrier between a first sound path for the first transducer and a second sound path for the second transducer. The first sound path comprises a substantially annular cross-section disposed around the second sound path. The earphone includes a filter disk arranged in the sound opening, in which an acoustic friction is provided for each of the first and second sound paths.
Public/Granted literature
- US20110051981A1 In-Ear Earphone Public/Granted day:2011-03-03
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