Directionality device for auditory prosthesis microphone
First Claim
Patent Images
1. An auditory prosthesis comprising:
- a housing;
a microphone disposed in the housing;
a microphone inlet defined by the housing for receiving a sound; and
an inlet tube comprising a first open end, wherein the first open end is connected to the housing so as to substantially surround the microphone inlet, and wherein the inlet tube defines at least one opening disposed along an outer surface of the inlet tube.
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Abstract
Devices are used to receive sound so as to enhance directionality in a single microphone auditory prosthesis. A tube including a plurality of openings directs sound into a microphone located on the auditory prosthesis. Directionality of such a system is based on a constructive and destructive interference between added sound components as sound enters the openings on the tube. The spacing and size of the openings can be configured such that sounds coming towards the recipient from a predetermined direction are received, while sounds from less desirable directions are cancelled out due to sound wave phase differences.
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Citations
28 Claims
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1. An auditory prosthesis comprising:
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a housing; a microphone disposed in the housing; a microphone inlet defined by the housing for receiving a sound; and an inlet tube comprising a first open end, wherein the first open end is connected to the housing so as to substantially surround the microphone inlet, and wherein the inlet tube defines at least one opening disposed along an outer surface of the inlet tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An auditory prosthesis comprising:
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a wearable housing adapted to be located behind an ear of a recipient; a microphone disposed within the wearable housing; a tube defining at least one opening along at least a portion of the length of the tube, wherein the tube is configured to conform to a portion of an ear of a recipient, and wherein the tube terminates at an inlet to the microphone, wherein the auditory prosthesis comprises at least one of a bone conduction auditory prosthesis and a cochlear implant. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An auditory prosthesis comprising:
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a microphone inlet; a microphone in communication with the microphone inlet; and an inlet tube comprising an outer wall defining a lumen, a first opening through the outer wall, and a second opening through the outer wall, wherein the inlet tube terminates at the microphone inlet, and wherein the first opening and the second opening are separated by a distance such that a sound having a predetermined frequency and passing through both the first opening and the second opening is transmitted in phase within the tube. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. An apparatus comprising:
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a lens; an armature connected to the lens, wherein the armature is configured to enable the lens to be worn on a recipient, and wherein the armature defines a plurality of openings and a hollow lumen in communication with the plurality of openings; a microphone located proximate an end of the lumen; an auditory prosthesis adapted to be secured to the armature proximate the microphone, wherein the auditory prosthesis comprises a bone conduction device. - View Dependent Claims (27, 28)
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Specification