Wearable device and charger, and method for estimating absorbance of wearable device
First Claim
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1. A wearable device comprising:
- a spectroscope configured to emit a first light to a reference material of a charger in response to the wearable device being placed on the charger, measure an intensity of the first light reflected from the reference material, emit a second light to a skin of a user while the wearable device is worn by the user, and measure an intensity of the second light reflected from the skin of the user; and
a processor configured to determine absorbance of the skin of the user based on the intensity of the first light that is measured while the wearable device is placed on the charger and the intensity of the second light that is measured while the wearable device is worn by the user.
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Abstract
A wearable device, a charger, and a method for estimating absorbance of the wearable device are provided. The wearable device includes a spectroscope configured to emit a first light to a reference material of a charger, measure an intensity of the first light reflected from the reference material, emit a second light to a skin of a user, and measure an intensity of the second light reflected from the skin of the user; and a processor configured to determine absorbance of the skin of the user based on the intensity of the first light and the intensity of the second light.
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Citations
14 Claims
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1. A wearable device comprising:
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a spectroscope configured to emit a first light to a reference material of a charger in response to the wearable device being placed on the charger, measure an intensity of the first light reflected from the reference material, emit a second light to a skin of a user while the wearable device is worn by the user, and measure an intensity of the second light reflected from the skin of the user; and a processor configured to determine absorbance of the skin of the user based on the intensity of the first light that is measured while the wearable device is placed on the charger and the intensity of the second light that is measured while the wearable device is worn by the user. - View Dependent Claims (2, 3, 4, 5)
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6. A wearable device comprising:
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a spectroscope configured to emit first light to a reference material of a charger at predetermined time intervals, repeatedly measure an intensity of the first light reflected from the reference material, emit second light to a skin of a user, and measure an intensity of the second light reflected from the skin of the user; and a processor configured to determine absorbance of the skin of the user based on the intensity of the first light and the intensity of the second light, wherein the processor is further configured to determine a representative intensity representing the intensity of the first light which is repeatedly measured in response to the wearable device being removed from the charger. - View Dependent Claims (7, 8)
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9. A method for operating a wearable device, the method comprising:
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emitting a first light to a reference material of a charger in response to the wearable device is placed on the charger; measuring an intensity of the first light reflected from the reference material; emitting a second light to a skin of a user while the wearable device is worn by the user; measuring an intensity of the second reflected from the skin of the user; and determining absorbance of the skin of the user based on the intensity of the first light that is measured while the wearable device is placed on the charger and the intensity of the second light that is measured while the wearable device is worn by the user. - View Dependent Claims (10, 11)
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12. A method for operating a wearable device, the method comprising:
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emitting first light to a reference material of a charger at predetermined time intervals; repeatedly measuring an intensity of the first light reflected from the reference material; emitting second light to a skin of a user; measuring an intensity of the second light reflected from the skin of the user; determining absorbance of the skin of the user based on the intensity of the first light and the intensity of the second light; determining a representative intensity representing the intensity of the first light which is repeatedly measured in response to the wearable device being removed from the charger; and correcting the representative intensity based on a reflectivity of the reference material, wherein the determining the absorbance of the skin of the user comprises determining the absorbance based on the corrected representative intensity and the intensity of the second light. - View Dependent Claims (13)
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14. A wearable device comprising:
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a light emitter configured to emit a first light to a charger in response to the wearable device being placed on the charger, and emit a second light to a user of the wearable device while the wearable device is detached from the charger and worn by the user; a spectroscope configured to receive the first light reflected from the charger and measure a reference reflective intensity of the first light, and receive the second light reflected from the user and measure an intensity of the second light; a storage configured to store the reference intensity of the first light; and a processor configured to determine absorbance of the user based on a comparison between the reference reflective intensity of the first light stored in the storage and the intensity of the second light measured by the spectroscope.
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Specification