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.

Methods, systems, and devices for heart rate detection are described. A method may include receiving physiological data associated with the user, where the physiological data may include motion data and temperature data collected throughout a time interval via a wearable device associated with the user. The method may include determining a condition quality metric associated with the time interval based on the received motion data and temperature data. The condition quality metric may indicate a relative quality of the physiological data collected throughout the time interval for determination of heart rate measurements. The method may include sampling photoplethysmogram (PPG) data for the user via the wearable device based on the condition quality metric satisfying a threshold metric value and a timer satisfying a first threshold time duration. The method may include determining a heart rate measurement for the user based at least in part on the sampled PPG data.

The method for improving measurement accuracy of a measurement system includes: emitting, by a light-emitting unit, at least one light signal to penetrate a human tissue; receiving, by a photoelectric conversion unit, the at least one light signal emitted by the light-emitting unit after penetrating the human tissue, and converting the at least one light signal into an electrical signal; converting, by a analog-to-digital conversion unit, the electrical signal into a digital signal; optimizing, by a signal-to-noise ratio optimization module, a signal-to-noise ratio of the digital signal by establishing at least one of a plurality of logic strategies; adjusting, by the driving adjustment unit, an magnitude of a driving current of the light-emitting unit base on the adjustment coefficient; and performing, by an algorithm processing unit, a physiological parameter conversion and calculation based on the digital signal processed by the at least one logic strategy.

Methods, devices, and systems related to determining biometric data using an array of infrared (IR) illuminators are described. In an example, a method can include projecting a number of IR dots on a user using a dot projector and an array of IR illuminators, capturing an IR image of the number of IR dots using an IR camera, comparing a number of pixels of the captured IR image to a number of corresponding pixels of a baseline IR image using a processing resource, and determining biometric data of the user at least partially based on comparing the captured IR image to the baseline IR image using the processing resource.

An optical sensor module for measuring both speckleplethysmography (SPG) and photoplethysmography (PPG) signals at human or animal tissue, the optical sensor module comprising: a first light source, for illuminating the tissue for use with SPG measurements, the first light source comprising a laser; a second light source, for illuminating the tissue for use with PPG measurements; and one or more optical sensor(s) for receiving light from the illuminated tissue.

A method is presented for predicting heat stroke of a subject. The method includes an earbud covered with a waterproof moisture permeable membrane allowing for moisture penetration, the earbud including an infrared (IR) temperature sensor for measuring core body temperature of the subject, wherein the IR temperature sensor is covered with a waterproof IR transmittable film to inhibit water drops from contacting a detector of the IR temperature sensor, a first humidity sensor positioned within a sweat flow path within the earbud, a second humidity sensor positioned outside the earbud, and a sodium ion (Na.sup.+) concentration sensor for measuring hydration levels of the subject.

An apparatus for calibrating a bio-information estimation model is provided. The apparatus for calibrating a bio-information estimation model includes: a data obtainer configured to obtain at least one pulse wave signal; and a processor configured to extract a plurality of feature sets, each feature set including one or more features, from each of the at least one pulse wave signal, and configured to calibrate a bio-information estimation model based on a correlation distribution of the extracted plurality of feature sets.

provided is an automotive key device connected, in the form of a holder, to a mechanism of opening or shutting an automotive door or merged with the mechanism of opening or shutting the automotive door. The automotive key device includes an electrocardiogram (ECG) sensor having a first body signal electrode and a second body signal electrode and a contact terminal electrically connected to the ECG sensor. The contact terminal is configured to serve as a passage for electrical connection with devices within a vehicle. A steering wheel docking station and a system configured to include the steering wheel docking station and the automotive key device are also provided.

A highly safe vehicle control device is provided. The vehicle control device includes an operation unit, a light-emitting and light-receiving unit, and a control unit. The operation unit includes a steering wheel including a rim, a hub, and a spoke. The rim is connected to the hub through the spoke. The light-emitting and light-receiving unit is provided along a surface of the rim. The light-emitting and light-receiving unit includes a first light-emitting element and a first light-receiving element. The first light-emitting element has a function of emitting light with a first wavelength range. The first light-receiving element has a function of receiving the light with the first wavelength range and converting it into an electrical signal. The first light-emitting element and the first light-receiving element are arranged on the same plane. The light-emitting and light-receiving unit has a function of sequentially outputting received-light data to the control unit. The control unit has a function of obtaining biological information of a driver from a plurality of received-light data and executing processing corresponding to the biological information.

According to an aspect, a detection device includes: a sensor having a detection area divided into a plurality of partial detection areas; and a detector configured to extract, from among the partial detection areas, one or more partial detection areas in each of which a signal strength of data satisfying a predetermined condition is acquired, and acquire biometric data on an object to be detected based on detection signals detected in a biometric data acquisition area including the extracted one or more partial detection areas.