Noninvasive alcohol sensor
First Claim
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1. A method for determining a blood-alcohol level of an individual, the method comprising:
- receiving electromagnetic radiation emanating from tissue of the individual in response to propagation of electromagnetic radiation into the tissue of the individual;
deriving a spatially distributed multispectral image from the received electromagnetic radiation;
determining the blood-alcohol level from the multispectral image; and
determining a biometric identification of the individual from the multispectral image.
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Abstract
Methods and systems are provided for biometric sensing. An illumination subsystem provides light at discrete wavelengths to a skin site of an individual. A detection subsystem receives light scattered from the skin site. A computational unit is interfaced with the detection system. The computational unit has instructions for deriving a spatially distributed multispectral image from the received light at the discrete wavelengths. The computational unit also has instructions for comparing the derived multispectral image with a database of multispectral images to identify the individual.
287 Citations
39 Claims
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1. A method for determining a blood-alcohol level of an individual, the method comprising:
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receiving electromagnetic radiation emanating from tissue of the individual in response to propagation of electromagnetic radiation into the tissue of the individual; deriving a spatially distributed multispectral image from the received electromagnetic radiation; determining the blood-alcohol level from the multispectral image; and determining a biometric identification of the individual from the multispectral image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 38, 39)
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19. Apparatus for determining a blood-alcohol level of an individual, the apparatus comprising:
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a receiver adapted to receive electromagnetic radiation emanating from tissue of the individual in response to propagation of electromagnetic radiation into the tissue of the individual; a processor coupled with the receiver; and a computer-readable storage medium coupled with a processor, the computer-readable storage medium having a computer-readable program embodied therein for directing operation of the processor, the computer-readable program including; instructions for deriving a spatially distributed multispectral image from the received electromagnetic radiation; instructions for determining the blood-alcohol level from the multispectral image; and instructions for determining a biometric identification of the individual from the multispectral image. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification