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US 2010/0303270 A1Published application
Ear Defender With Concha Simulator
AssigneeRed Tail Hawk Corporation
InventorJohn W. Parkins
Life of this patent
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Abstract
A hearing protection system with talk-through having a pair of rigid earcups enclosing a microphone, amplifier and speaker. A concha simulator, having a volume simulating that of the concha of a human ear, is acoustically coupled to the microphone, and also to the outside through an opening in the earcup. By coupling the microphone to the concha simulator, instead of directly to the outside, the acoustic response of the talk-through more accurately represents the hearing of a user.
Claims11
A hearing protection system with talk-through, comprising a pair of earcups, each earcup comprising:
- a) a rigid earcup shell;
- b) a concha simulator within the earcup shell, comprising a volume simulating a volume of a human ear, coupled to an opening in the rigid earcup shell;
- c) a microphone acoustically coupled to the concha simulator;
- d) an amplifier coupled to the microphone;
- and
- e) an audio transducer coupled to the amplifier to generate sound in a user's ear canal.
3 more elements
Dependencies are inferred from the claim text.