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    • 1. 发明公开
    • High fidelity blast hearing protection
    • Luftstoßgehörschutzmit hoher Wiedergabetreue
    • EP2835115A1
    • 2015-02-11
    • EP14179140.0
    • 2014-07-30
    • Applied Research Associates, Inc.
    • Meegan, George DouglasArgo, Theodore FrancisCongdon, Jennifer Nicole
    • A61F11/08
    • A61F11/08A61F2011/085H04R1/1083
    • An improved hearing protection device intended to be inserted into an external auditory meatus of a user, having a housing structure (2), a passive tuning element (12), and a passive, nonlinear acoustic filter (11). The tuning element (12) and the acoustic filter (11) may be supported in series by the housing structure (2). The tuning element (12) may be or include a diaphragm (122), a resonator (121), or both. The housing structure (2) may support a diaphragm (122) of the tuning element (12) at its circumference, and may provide cavities (23A, 23A1) on both sides of the diaphragm (122). In some embodiments electronic components are included in the hearing protection device to counteract insertion loss provided by the passive element (1), and restore natural hearing for low to moderate sound pressure levels. Communications devices may also be incorporated into the hearing protection device.
    • 一种改进的听力保护装置,其旨在被插入到用户的外耳道中,具有壳体结构(2),无源调谐元件(12)和无源非线性声学滤波器(11)。 调谐元件(12)和声学滤波器(11)可以由壳体结构(2)串联支撑。 调谐元件(12)可以是或包括隔膜(122),谐振器(121)或两者。 壳体结构(2)可以在其圆周处支撑调谐元件(12)的隔膜(122),并且可以在隔膜(122)的两侧提供空腔(23A,23A1)。 在一些实施例中,电子部件被包括在听力保护装置中以抵消被动元件(1)提供的插入损耗,并且恢复低至中等声压级的自然听觉。 通信设备也可以并入到听力保护设备中。