Apparatus and method for estimating biometric information
First Claim
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1. An apparatus configured to estimate biometric information, the apparatus comprising:
- a sensor configured to measure a first light signal reflected from a subject and a first temperature of the subject while the subject is in a fasting state, and measure a second light signal reflected from the subject and a second temperature of the subject while the subject is in a non-fasting state; and
a processor configured to generate a light signal-temperature relationship between the first light reflected from the subject and the first temperature of the subject measured in the fasting state, perform temperature correction on the second light signal reflected from the subject based on the second temperature of the subject and the light signal-temperature relationship to thereby obtain a temperature-corrected light signal, and estimate the biometric information of the subject based on the temperature-corrected light signal.
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Abstract
An apparatus configured to estimate biometric information includes a sensor configured to measure a light signal reflected from a subject and a temperature of the subject, and a processor configured to perform temperature correction on the light signal reflected from the subject based on the temperature of the subject using a light signal-temperature relationship between the light signal reflected from the subject and the temperature of the subject to thereby obtain a temperature-corrected light signal, and estimate the biometric information of the subject based on the temperature-corrected light signal.
25 Citations
16 Claims
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1. An apparatus configured to estimate biometric information, the apparatus comprising:
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a sensor configured to measure a first light signal reflected from a subject and a first temperature of the subject while the subject is in a fasting state, and measure a second light signal reflected from the subject and a second temperature of the subject while the subject is in a non-fasting state; and a processor configured to generate a light signal-temperature relationship between the first light reflected from the subject and the first temperature of the subject measured in the fasting state, perform temperature correction on the second light signal reflected from the subject based on the second temperature of the subject and the light signal-temperature relationship to thereby obtain a temperature-corrected light signal, and estimate the biometric information of the subject based on the temperature-corrected light signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16)
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12. A method of estimating biometric information, the method comprising:
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measuring a first light signal reflected from a subject and a first temperature of the subject while the subject is in a fasting state; generating a light signal-temperature relationship based on the first light signal reflected from the subject and the first temperature of the subject measured in the fasting state; measuring a second light signal reflected from the subject and a second temperature of the subject in a non-fasting state; performing temperature correction on the second light signal reflected from the subject based on the second temperature of the subject and the light signal-temperature relationship to thereby obtain a temperature-corrected light signal; and estimating the biometric information of the subject based on the temperature-corrected light signal. - View Dependent Claims (13, 14, 15)
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Specification