Method and apparatus for bone sensing
First Claim
1. A bone conduction sensor for placement in an external auditory canal comprising:
- a bone sensing element having a contoured surface adapted to fit against a wall of the external auditory canal increasing the surface area contact between the sensing element and the wall of the external auditory canal;
at least one contact sensor adjacent the bone sensing element for determining contact between the bone sensing element and the external auditory canal; and
a circuit portion electrically connected to the sensing element and the at least one contact sensor for determining whether the bone sensing element is in proper position and compensating for the position of the bone sensing element when not in proper position.
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Accused Products
Abstract
The invention discloses an improved bone conduction sensor capable of use within a voice sound transmitting apparatus. The bone conduction sensor is adapted for placement in the external auditory canal of the user in a nonocclusive fashion. The bone conduction sensor has a contoured surface adapted-to fit against a wall of the external auditory canal increasing the surface area contact between the bone conduction sensor and the wall of the external auditory canal. The bone conduction sensor may also be associated with one or more contact sensors adjacent the bone conduction sensor for determining contact between the bone conduction sensor and the wall of the external auditory canal. In addition, the invention provides for the bone sensing element to be separated from the circuit portion of the bone conduction sensor so that the circuitry may be removed to the behind the ear portion of the earpiece.
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Citations
12 Claims
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1. A bone conduction sensor for placement in an external auditory canal comprising:
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a bone sensing element having a contoured surface adapted to fit against a wall of the external auditory canal increasing the surface area contact between the sensing element and the wall of the external auditory canal;
at least one contact sensor adjacent the bone sensing element for determining contact between the bone sensing element and the external auditory canal; and
a circuit portion electrically connected to the sensing element and the at least one contact sensor for determining whether the bone sensing element is in proper position and compensating for the position of the bone sensing element when not in proper position. - View Dependent Claims (2, 3, 4)
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5. An earpiece for nonocclusive placement in an external auditory canal comprising:
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a housing;
a bone conduction sensor mounted to the housing for nonocclusive placement in the auditory canal having a contoured surface adapted to fit against a wall of the external auditory canal increasing a surface area contact between the bone conduction sensor and the wall of the external auditory canal;
an air conduction sensor adapted for nonocclusive placement in the auditory canal mounted in the housing;
at least one contact sensor adjacent the bone conduction sensor for determining contact between the bone conduction sensor and the wall of the external auditory canal;
a circuit portion disposed within the earpiece and electrically connected to the bone conduction sensor, the air conduction sensor, and the at least one contact sensor; and
the circuit portion adapted for determining whether the bone conduction sensor is in proper position based on a state of the at least one contact sensor. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method of bone conduction sensing comprising:
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transmitting a bone conduction vibration signal at a wall of the external auditory canal through an insulative conductive layer;
sensing a bone conduction vibration signal at the insulative conductive layer with a sensing element;
conveying the sensed bone conduction signal to a position removed from the external auditory canal;
monitoring the position of the bone sensing element using at least one contact sensor;
selectively processing the sensed bone conduction signal based on a state of the at least one contact sensor.
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Specification