Biometric device based on luminescence
First Claim
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1. A method of identifying a user comprising:
- illuminating a user with first electromagnetic energy having a first wavelength provided by an excitation source to induce luminescence, wherein a portion of said first electromagnetic energy is absorbed and emitted from the user at a different wavelength;
illuminating said user with a second electromagnetic energy provided by said excitation source;
detecting said luminescence with a detector and producing a first output;
detecting a portion of said second electromagnetic energy reflected by said user and forming a second output;
identifying a first reference corresponding to said luminescence of a selected user stored in memory;
identifying a second reference corresponding to said selected user'"'"'s response to said second electromagnetic energy stored in memory;
comparing by a processor said first reference to said first output;
comparing by said processor said second reference to said second output;
identifying whether a selected user is present; and
adjusting said first and second reference stored in memory based on changes over time in said luminescence and said second electromagnetic energy reflected by said user wherein said changes correspond to changes in said user'"'"'s biometric information regarding a physical feature of said user.
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Abstract
The present disclosure relates to an apparatus and/or method of identifying a user comprising illuminating a user with electromagnetic energy to induce luminescence and producing an output data signal. A reference data signal corresponding to the luminescence of a selected user may be identified and compared to the output data signal. In such a manner, an identification may be made as to whether a selected user is present.
28 Citations
21 Claims
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1. A method of identifying a user comprising:
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illuminating a user with first electromagnetic energy having a first wavelength provided by an excitation source to induce luminescence, wherein a portion of said first electromagnetic energy is absorbed and emitted from the user at a different wavelength; illuminating said user with a second electromagnetic energy provided by said excitation source; detecting said luminescence with a detector and producing a first output; detecting a portion of said second electromagnetic energy reflected by said user and forming a second output; identifying a first reference corresponding to said luminescence of a selected user stored in memory; identifying a second reference corresponding to said selected user'"'"'s response to said second electromagnetic energy stored in memory; comparing by a processor said first reference to said first output; comparing by said processor said second reference to said second output; identifying whether a selected user is present; and adjusting said first and second reference stored in memory based on changes over time in said luminescence and said second electromagnetic energy reflected by said user wherein said changes correspond to changes in said user'"'"'s biometric information regarding a physical feature of said user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for selectively providing user access to a secured device or location comprising:
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illuminating a user with first electromagnetic energy having a first wavelength provided by an excitation source to induce luminescence, wherein a portion of said first electromagnetic energy is absorbed and emitted from the user at a different wavelength; illuminating said user with second electromagnetic energy provided by said excitation source; detecting said luminescence with a detector and producing a first output from a detector; detecting a portion of said second electromagnetic energy reflected by said user and forming a second output; identifying a first reference corresponding to luminescence of a selected user stored in memory; identifying a second reference corresponding to said selected user'"'"'s response to said second electromagnetic energy stored in memory; comparing by a processor said first reference to said first output; comparing by said processor said second reference to said second output; selectively providing access to said secured device or location; and adjusting said first and second reference stored in memory based on changes over time in said luminescence and said second electromagnetic energy reflected by said user wherein said changes correspond to changes in said user'"'"'s biometric information regarding a physical feature of said user. - View Dependent Claims (18, 19)
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20. An apparatus for identification comprising:
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a processor and a memory; at least one excitation source capable of illuminating a user with first electromagnetic energy having a first wavelength selected to produce luminescence, wherein a portion of said first electromagnetic energy is absorbed and emitted from the user at a different wavelength; at least one excitation source capable of illuminating said user with second electromagnetic energy selected to be reflected by said user; a detector capable of detecting said luminescence at said different wavelength and detecting a portion of said second electromagnetic energy reflected by said user and providing an output to said processor wherein said processor is capable of analyzing said output, identifying a user by comparing said output to reference data stored in memory and adjusting reference data stored in memory based on changes over time in said luminescence and said second electromagnetic energy reflected by said user wherein said changes correspond to changes in said user'"'"'s biometric information regarding a physical feature of said user. - View Dependent Claims (21)
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Specification