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US 2021/0264180 A1Published application
Biometric device and method thereof and wearable carrier
AssigneeIndustrial Technology Research Institute
InventorsChia-Hsin Chao, Yen-Hsiang Fang, Ming-Hsien Wu
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Abstract
A biometric device includes a substrate, an image sensor, an optical layer and at least one infrared light emitting diode (IR LED). The image sensor is disposed on the substrate. The optical layer is disposed on the image sensor and includes a diffraction pattern. The IR LED is disposed on the diffraction pattern of the optical layer. The optical layer is located between the IR LED and the image sensor.
Claims14
A biometric device, comprising:
- a substrate;
- an image sensor, disposed on the substrate;
- an optical layer, disposed on the image sensor, and comprising a diffraction pattern;
- and
- at least one infrared light emitting diode, disposed on the diffraction pattern of the optical layer, wherein the optical layer is located between the infrared light emitting diode and the image sensor.
2 more elements
A biometric method, comprising:
- receiving a characteristic image data;
- coupling a region of a biological body to a biometric device, wherein the biometric device comprises a plurality of photosensing units and a plurality of infrared light emitting diodes, and the photosensing units are disposed corresponding to the infrared light emitting diodes, and each of the infrared light emitting diodes is adapted to emit a light to the region of the biological body;
- sequentially lighting at least a part of the infrared light emitting diodes and sequentially turning on the corresponding photosensing units, and making the corresponding photosensing units to receive the lights scattered by the region to respectively generate a recognition sensing image;
- and
- comparing the recognition sensing image with the characteristic image data, and outputting a recognition result according to a comparison result.
2 more elements
Dependencies are inferred from the claim text.