Light-based detection for acoustic applications
First Claim
1. A method, comprising:
- measuring an amount of energy reflected by an interface using a light emitter and detector when a surface skin microphone (SSM) boot of a SSM is not in contact with skin, the SSM including a diaphragm coupled with a vibration transducer and the SSM boot;
measuring another amount of energy reflected by another interface using the light emitter and detector when the SSM boot is in contact with the skin; and
detecting skin contact by detecting a change between the amount of energy and the another amount of energy using a digital signal processor.
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Accused Products
Abstract
A light-based skin contact detector is described, including a boot having an index of refraction less than or equal to another index of refraction associated with skin at a frequency of light, a light emitter and detector coupled to the boot and configured to measure an amount of light energy reflected by an interface of the boot, and a digital signal processor configured to detect a change in the amount of light energy reflected by the interface. Embodiments relate to methods for detecting skin contact by measuring an amount of energy reflected by an interface when a boot is not in contact with skin, measuring another amount of energy reflected by another interface when the boot is in contact with the skin, and detecting a change between the amount of energy and the another amount of energy using a digital signal processor.
193 Citations
16 Claims
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1. A method, comprising:
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measuring an amount of energy reflected by an interface using a light emitter and detector when a surface skin microphone (SSM) boot of a SSM is not in contact with skin, the SSM including a diaphragm coupled with a vibration transducer and the SSM boot; measuring another amount of energy reflected by another interface using the light emitter and detector when the SSM boot is in contact with the skin; and detecting skin contact by detecting a change between the amount of energy and the another amount of energy using a digital signal processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification