An optical measuring apparatus includes first and second light-emitting elements that emit light and a controller. Upon detection of the presence of a body by light emitted from the first light-emitting element, the controller performs control so that the second light-emitting element will emit light with an amount for measuring the body.

A wearable device includes a processor and a lower module. The lower module includes a pressure sensor for detecting a mechanical movement of a skin that covers an artery. The mechanical movement of the skin is due to blood flow through the artery. The processor is configured to receive skin movement information from the movement sensor; calculate a pulse front velocity (PFV), which is a velocity of a blood wave as the blood wave passes under the pressure sensor; estimate a pulse wave velocity (PWV) using the PFV; and estimate the blood pressure using the PWV.

The present invention is directed to system and method for effectively monitoring critical respiratory parameters including SpO.sub.2, PR, COHb, inspired CO.sub.2, expired CO.sub.2, respiration rate, respiration pattern, hyperventilation (hypocapnia), hypoventilation (hypercapnia), CO.sub.2 contamination, and CO.sub.2 rebreathing. The system according to the present invention comprises a pulse oximetry sensor and a CO.sub.2 sensor connected to a central portable unit. The central unit comprising a barometer, an accelerometer, a capnography circuit, and a control unit. The control unit including the method for effectively monitoring critical respiratory parameters.

A vital signs monitoring ring with integrated display includes a ring housing, the ring housing comprising at least two windows and a printed circuit board assembly (PCBA) layer configured to be attached to the ring housing. The PCBA layer includes a display section, a sensor section, a transmission mode oximetry measurement section configured to be in alignment with the at least two windows, a power supply, and a switch configured to power on the vital signs monitoring ring with integrated display via the power supply. The display section is configured to display physiological and action parameters associated with a user by sensing the physiological and action signals from a digit of user wearing the vital signs monitoring ring with integrated display using at least the sensor section and the transmission mode oximetry measurement section.

A blood pressure (BP) measuring device including a PPG sensor, having one or more light sources and one or more light detectors; a computing unit, including a receiver for receiving PPG signals from the PPG sensor and a sampling circuit, for generating PPG signals samples of the PPG signals, where the device also includes a processor having BP calculation functionality, for processing the PPG signals samples into sequential BP values and a BP output unit, for outputting the calculated BP values, where the sampling circuit is adapted to sample at high sampling rate and provide BP values at a rate higher than 1 BP value per second, where the device may also include an electrogram sensor, having one or more electrodes for outputting tissue electrical activity values, the computing unit is connected to the electrogram sensor.

The present disclosure relates to an image information generation method, a pulse wave measurement system and an electronic device. The method comprises: with respect to a target part, acquiring a first infrared image sequence, each infrared image in the first infrared image sequence including at least a vein pattern; by registering the vein pattern in each infrared image in the first infrared image sequence, correcting each infrared image in the first infrared image sequence, thereby obtaining the corrected first infrared image sequence; removing at least the vein regions from respective infrared images in the corrected first infrared image sequence, to obtain image information of remaining regions as image information for pulse wave measurement.

An electronic device may include a housing and a PhotoPlethysmoGram (PPG) sensor disposed inside the housing. The PPG sensor may include a first Light Emitting Diode (LED) configured to generate light in a first wavelength band, a second LED configured to generate light in a second wavelength band, a third LED configured to generate light in a third wavelength band, a fourth LED configured to generate light in a fourth wavelength band, and a light receiving module including at least one photo diode. The electronic device may include a processor operatively coupled with the PPG sensor and a memory operatively coupled with the processor. The memory may include instructions that, when executed, cause the processor to measure optical densities of the light generated by the first LED to the fourth LED, and calculate a blood glucose value based at least in part on the measured optical densities.

An illumination source may be configured to illuminate the skin of the user. An illumination detector may detect electromagnetic radiation reflected of the skin of the user. A compensation module may be configured to determine the position of the skin of the user relative to the illumination detector. A processor may be configured to determine a heart rate of the user by analyzing information corresponding to an amount of the electromagnetic radiation detected by the illumination detector. The processor may also determine the heart rate of the user by compensating for the position of the skin of the user as determined by the compensation module.

A healthcare device for asthmatic patients that can help in reducing and avoiding risk factors that can trigger one or more symptoms of asthma. The healthcare device includes an infrared sensor, a pulse oximeter sensor, a UV sensor, an atmospheric sensor, and an air quality sensor for measuring values of different risk factors including ambient temperature, body temperature, blood oxygen saturation level, heart rate, intensity of ultraviolet radiations, humidity level, altitude, CO2 levels, and total volatile organic compounds (TVOCs).

A biological information detection apparatus includes: a light source which projects a pattern of near-infrared light onto an object including a living body; an imaging system which includes first photodetector cells detecting light in a near-infrared wavelength range and second photodetector cells detecting light in a visible wavelength range, and generates a first image signal representing a first image, which is an image taken in the near-infrared wavelength range, of the object on which the pattern is projected, and a second image signal representing a second image of the object taken in the visible wavelength range; and a calculator which calculates biological information concerning the living body using at least one selected from the group consisting of the first and second image signals.