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US 9,591,413 B2Granted
Hydraulic microphone
AssigneeCochlear Limited
InventorScott Allen Miller
Life of this patent
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Abstract
A device, including an implantable microphone, including a chamber in which media corresponding to at least one of a liquid or a fluid resistant to compression is located such that vibrations originating external to the microphone are effectively transmitted through the media.
Claims23
A device, comprising:
- an implantable microphone, including:
- a chamber in which one or more mediums corresponding to at least one of a liquid or a gel is located such that vibrations originating external to the microphone are effectively transmitted through the media, wherein the chamber forms a bounded volume extending from a first component that moves in response to the vibrations originating from exterior to the microphone to a location at least proximate a second component that moves in response to the vibrations, wherein portions of the implantable microphone establishing the bounded volume between the first and second component are static portions, wherein the vibrations originating external to the microphone are acoustic signals impinging upon skin of the recipient resulting from, with respect to a recipient of the implantable microphone, ambient noise, and thus the first component and the second component move in response to acoustic signals originating from ambient noise with respect to the recipient.
A device, comprising:
- an implantable microphone, including:
- a chamber in which one or more mediums corresponding to at least one of a liquid or a gel is located such that vibrations originating external to the microphone are effectively transmitted through the media;
- and
- a transducer in effective vibration communication with the media, wherein the transducer is configured to convert vibration travelling through the media to an electrical signal, wherein:
- the chamber is established in part by two diaphragms, one of the two diaphragms being angled relative to the other of the two diaphragms.
2 more elements
A device, comprising:
- an implantable microphone, including:
- a chamber in which one or more mediums corresponding to at least one of a liquid, oil, saline solution, gel, oil, water or alcohol is located such that vibrations originating external to the microphone are effectively transmitted through the media;
- and an electret transducer having a back volume, wherein
- the chamber forms a bounded volume extending from a component that moves in response to the vibrations originating from exterior to the microphone to a location at least proximate the transducer, wherein the bounded volume has a volume of at least about one-half that of a back volume of the transducer, and physical attenuation of energy traveling through the bounded volume, resulting from vibrations impinging upon the component that moves, that is transduced by the transducer, is less than about three dB.
1 more element
Dependencies are inferred from the claim text.