Samsung Electronics Co., Ltd.

Seoul National University

Hyundai Motor Company

Kia Motors Corporation

Snur & Db Foundation

Hyundai Dymos Inc.

Seung Woo Noh

Sang Yun Park

Jae Min Kang

Jin Woo Choi

Yong Joo Kwon

Byung Hoon Ko

Youn Ho Kim

Chang Soon Park

Seung Keun Yoon

Tak Hyung Lee

Ui Kun Kwon

Dae Geun Jang

Yunseo Ku

Jong Wook Lee

Hee Chan Kim

Hye Rim Lim

Chi Yul Yoon

Chang Mok Choi

Hyun Seok Moon

Myoung Hoon Jung

Jeong Eun Hwang

Sung Mo Ahn

In Ho Lee

Jong Hoon Park

Yun Ki Lee

Young Zoon Yoon

Kun Sun Eom

Gil Ju Kim

Sang Man Seo

Kwang Suk Park

Jin Ho Chung

Sungwan Kim

Youdan Kim

Tae Hyoung Yang

Soo Young Sim

Hyoung Woo Lim

Woo Seok Koh

Hyo Sun Jeon

Myung Jun Koh

Kwang Min Joo

Eun Ju Yeom

An apparatus for estimating bio-information is provided. According to an embodiment of the present disclosure, the apparatus for estimating bio-information includes: a first sensor configured to measure a first pulse wave signal of a first wavelength and a second pulse wave signal of a second wavelength from an object; a second sensor configured to measure at least one of a force or a pressure applied to the object; and a processor configured to: generate an oscillometric waveform envelope based on the first pulse wave signal of the first wavelength and the at least one of the force or the pressure applied to the object; obtain a feature value from the oscillometric waveform envelope; predict a size of a measured blood vessel based on the second pulse wave signal of the second wavelength; correct the feature value based on the size of the measured blood vessel; and estimate the bio-information based on correcting the feature value.

Apparatus and method for estimating bio-information

An apparatus for estimating blood pressure includes: a sensor, and a processor configured to estimate blood pressure based on a PPG signal and a contact pressure signal measured by the sensor. The sensor includes: a transparent elastic body; a first polarizing film provided on a surface of the transparent elastic body and configured to come into contact with the object; a light source provided under the transparent elastic body and configured to emit light toward the object; a first detector and a second detector provided under the transparent elastic body and configured to detect light, passing through the first polarizing film after being emitted by the light source and scattered or reflected from the object, to measure the PPG signal; and a second detector provided under the transparent elastic body and configured to detect light, not passing through the first polarizing film, to measure the contact pressure signal.

Apparatus and method for estimating blood pressure, and sensor for estimating the same

Provided i an apparatus configured to estimate an optical-based force, the apparatus including a main body, a cover disposed at a first side of the main body and configured to contact an object, a support part connected to two sides of the cover, supporting the cover, and protruding toward an inside of the main body, and an optical sensor disposed on the support part, the optical sensor including a light source configured to emit light onto a reflector, a detector configured to detect light reflected from the reflector, and a circuit unit configured to estimate a contact force of the object based on the detected light.

Apparatus and method for estimating optical-based force

An apparatus for measuring bio-information in a non-invasive manner includes: a pulse wave sensor configured to measure a plurality of pulse wave signals having different wavelengths from an object; a contact pressure sensor configured to measure contact pressure of the object while the plurality of pulse wave signals are measured; and a processor configured to obtain an oscillometric waveform based on the contact pressure and the plurality of pulse wave signals having the different wavelengths, and obtain bio-information based on the oscillometric waveform.

Bio-information measuring apparatus and bio-information measuring method

A wafer-type sensor for wafer alignment includes a dummy wafer; a sensor module disposed in the dummy wafer, and a processor configured to control the sensor module to measure a distance between a side surface of the dummy wafer and a ring formed around a periphery of an electrostatic chuck based on the dummy wafer being mounted on the electrostatic chuck by a transfer robot.

Wafer type sensor, wafer alignment method using the same, and calibration device for calibrating wafer type sensor

An apparatus for measuring biometric information is provided. The apparatus may include: a main body configured to be worn on an object to be examined. The main body may include a contact pressure sensor configured to measure a contact pressure of the object while a hand shape is changing; a pulse wave sensor configured to measure a pulse wave signal of the object; and a processor configured to measure biometric information on the basis of the measured contact pressure and pulse wave signal.

Apparatus and method for measuring biometric information

An apparatus for estimating bio-information, may include: a main body; a photoplethysmogram (PPG) sensor disposed in the main body and configured to measure a PPG signal from an object of a user; an internal pressure sensor disposed in a closed space formed in the main body, and configured to measure a pressure applied to the closed space when the object applies force to a surface of the main body; and a processor configured to estimate the bio-information of the user based on the PPG signal and the pressure applied to the closed space.

An apparatus for estimating blood pressure is provided. According to one embodiment, the apparatus for estimating blood pressure may include: a first sensor configured to obtain a pulse wave signal of a green wavelength from an object when the object is in contact with the first sensor; a second sensor configured to measure an external force applied to the second sensor while the first sensor is obtaining the pulse wave signal; and a processor configured to obtain an oscillometric envelope based on a direct current (DC) component of the pulse wave signal of the green wavelength and the external force, and estimate the blood pressure using the oscillometric envelope.

Apparatus and method for estimating blood pressure

An apparatus for estimating biological information may include a sensor configured to detect a first light signal and a second light signal from an object of a user and a processor configured to determine whether a condition for estimating biological information is satisfied based on the detected first light signal and estimate biological information based on the second light signal, wherein the sensor includes a force sensor configured to measure a force applied to the object when the object is in contact with a cover surface of the sensor.

Apparatus for estimating biological-information and sensor for measuring multi-signal

An apparatus for measuring bio-signals is provided. According to an example embodiment, the apparatus for measuring bio-signals includes: a light source configured to emit light onto an object; an image sensor including: a pixel array configured to detect the light emitted by the light source and reacted by the object and a pixel binning unit configured to bin data of the light, detected by the pixel array, by using at least two different binning sizes; and a processor configured to acquire a plurality of bio-signals respectively based on data of the at least two different binning sizes, which are output from the image sensor.

Apparatus and method for measuring multiple bio-signals using image sensor based on different binning sizes

An electronic device and a control method using the same are provided. The electronic device may include: a photoplethysmography (PPG) sensor having a plurality of channels arranged isotropically; and a processor configured to: detect a center of gravity of an external force applied to a measurement area of the PPG sensor by an object, based on PPG signals that are detected from the plurality of channels when the object is in contact with the measurement area of the PPG sensor, and generate a control command based on a change in the detected center of gravity.

Electronic device for controlling a user interface via a biometric sensor and control method using the same

A wearable device includes a main body, a force sensor disposed on one surface of the main body and configured to measure a force, and a processor configured to control the force sensor to measure a first force when the one surface of the main body faces upwards, control the force sensor to measure a second force sensor when the one surface of the main body faces downward, and calibrate the force sensor based on at least one of the measured first force and the measured second force.

Wearable device and method of calibrating force sensor in wearable device

An apparatus for estimating cardiovascular information includes: a main body; and a strap connected to the main body and formed to be flexible to be wrapped around an object, wherein the main body may include: a pulse wave measurer configured to measure, from the subject, a first pulse wave signal by using a first light of a first wavelength, and a second pulse wave signal by using a second light of a second wavelength, the first wavelength being different from the second wavelength; a contact pressure measurer configured to measure a contact pressure between the object and the pulse wave measurer; and a processor configured to extract a cardiovascular characteristic value based on the first pulse wave signal, the second pulse wave signal, and change in the contact pressure, and estimate cardiovascular information based on the extracted cardiovascular characteristic value.

Apparatus for blood pressure estimation using photoplethysmography and contact pressure

A blood pressure estimating apparatus includes a sensor configured to obtain a bio-signal of an object; and a processor configured to extract a first cardiovascular feature and a second cardiovascular feature based on the bio-signal, and estimate blood pressure based on a first changing tendency of the first cardiovascular feature from a first reference level and a second changing tendency of the second cardiovascular feature from a second reference level, the first changing tendency and the second changing tendency being independent from each other.

Blood pressure estimating apparatus and blood pressure estimating method

An apparatus for estimating bio-information, the apparatus including a pulse wave sensor and a processor. The pulse wave sensor includes a plurality of channels, each channel of the plurality of channels being configured to measure a first pulse wave signal of a first wavelength and a second pulse wave signal of a second wavelength that is different from the first wavelength. The processor is configured to: for each channel of the plurality of channels, generate a first oscillogram based on the first pulse wave signal, generate a second oscillogram based on the second pulse wave signal, and convert a phase delay between the first oscillogram and the second oscillogram into an area. The processor is further configured to determine a channel among the plurality of channels based on the area of each channel, and estimate bio-information based on the determined channel.

Growing community of inventors

Seongnam-si, South Korea

Seung Woo Noh