Abstract: Provided is a radial arterial pulse sensing apparatus for noninvasive and continuous measurement of blood pressure and arterial elasticity. The apparatus includes two pressure sensor for detecting radial arterial pulses, two cuffs that are disposed under the respective pressure sensors and expandable by application of external pressure, a motor unit for providing proper pressure to expandable pouches under the respective pressure sensors in a state where a wrist band having the pressure sensors is put on a wrist, a pulse wave velocity calculating unit that calculates a pulse wave transfer velocity to attain a blood pressure value using an output from the pressure sensors, and an augmentation index calculating unit that estimates the blood pressure value by finding a time point of a reflective wave of the pulses using the outputs from the pressure sensors.

Abstract: Provided is a pillow having an apparatus for determining a sleeping state under an unrestricted non-self-awareness condition. The apparatus includes a sensor for detecting analog bio-information on a pulse, breathing, body movement, snore. bruxism for a user putting his/her head on the pillow, a signal processing unit for filtering off and amplifying the analog bio-information detected by the sensor, and a control unit for converting the analog bio-information output from the signal processing unit into a digital signal, storing the digital signal therein, extracting parameters from the detected bio-information to provide a sleeping status as a quantitative indicator. The sensor is installed in the pillow. The sensor is inserted into a pad type housing so that the sensor does not directly contact an interior material of the pillow.