Bio-signal measuring apparatus and operating method thereof

This invention describes a device that measures biological signals using light, similar to how a smartwatch measures heart rate. Uniquely, it also incorporates two concentric ring-shaped electrodes directly into the sensor. These electrodes measure how well the device is touching the skin, allowing the system to ensure accurate readings from the optical sensor.

Why it matters: Since 2018, advancements in miniaturized, low-power integrated circuits and sensor fusion techniques have made combining optical and impedance measurements in wearable devices more practical and cost-effective. This could enable more accurate and reliable bio-signal monitoring in compact form factors.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedCustom optical sensor, impedance circuit, processor logic

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