Wearable LED Sensor Device that Employs a Matched Filter to Generate Biometric Samples

Wearable LED Sensor Device that Employs a Matched Filter to Generate Biometric Samples

An LED of a wearable sensor device can be driven less frequently while still obtaining an accurate biometric sample. By reducing how frequently the LED is driven, the power required to operate the wearable sensor device is likewise reduced. To allow the LED to be driven less frequently while still o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Scott David, Carter Abraham, Azarnasab Ehsan
Format: Patent
Sprache:eng
Schlagworte:
COLORIMETRY
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
RADIATION PYROMETRY
SURGERY
TESTING
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Beschreibung
Zusammenfassung:An LED of a wearable sensor device can be driven less frequently while still obtaining an accurate biometric sample. By reducing how frequently the LED is driven, the power required to operate the wearable sensor device is likewise reduced. To allow the LED to be driven less frequently while still obtaining an accurate biometric sample, a known lighting profile of an LED can be employed with a matched filter to generate a biometric sample from a number of samples taken while the LED is lighting. In this way, the LED only needs to be lighted for a short period of time and a reduced amount of data is stored both of which minimize the power requirements of the wearable sensor device.