Snu Rdb Foundation

Samsung Electronics Co., Ltd.

Seoul National University

Goldstar, Co., Ltd.

Kwang Suk Park

Youn Ho Kim

Yong Gyu Lim

Jeong Su Lee

Kun Soo Shin

Jee Hoon Kim

Sang Yun Park

Jae Min Kang

Seung Woo Noh

Sang Ho Choi

Yu Jin Lee

Soo Young Sim

Hee Nam Yoon

Hyun Jae Baek

Hyun Bin Kwon

Hyo Sun Jeon

Myung Jun Koh

Kwang Min Joo

A wrist temperature rhythm acquisition apparatus and method, a core temperature rhythm acquisition apparatus and method, and a wearable device are provided. The wrist temperature rhythm acquisition apparatus includes a data acquirer configured to acquire wrist temperature data of a user and external environment temperature data; and a processor configured to estimate wrist temperature rhythm data in which an influence of an external environment temperature is corrected, based on the acquired wrist temperature data and the acquired external environment temperature data.

Wrist temperature rhythm acquisition apparatus and method, core temperature rhythm acquisition apparatus and method, and wearable device

A method for inducing an activity of a user's autonomic nervous system is provided. The method includes steps of: (a) on condition that each of the user's reference heart rate information corresponding to each of active states of the user's autonomic nervous system is obtained, an inducing device, if a specific active state of the autonomic nervous system is selected by the user, acquiring first reference heart rate information of the user corresponding to the specific active state of the autonomic nervous system; and (b) the inducing device supporting a first vibration stimulus with a first period corresponding to the first reference heart rate information to be applied to the user, to thereby allow the user's real-time average cardiac interval to be synchronized with the first vibration stimulus.

Apparatus for inducing activity of user's autonomic nervous system and method thereof

An apparatus and method of removing common mode noise in the case of measuring a biosignal using a capacitive coupling active electrode (CCE) is provided. A frequency band of a common mode signal may interact with a shield voltage and thus, a frequency band of a biosignal may be compensated for.

Circuit, device, and method to measure biosignal using common mode driven shield

A bioelectrode including a plate, a first electrode disposed on a first side of the plate, and a second electrode disposed on the first side of the plate and separate from the first electrode. The bioelectrode further includes a first guard portion disposed on a second side of the plate, a second guard portion disposed on the second side of the plate and separate from the first guard portion, and a preamplifier configured to output a voltage signal based on a biosignal measured between the first electrode and the second electrode.

Bioelectrode, and method and apparatus for processing biosignal using the same

Disclosed are a biosignal measurement device and a capacitively-coupled active electrode. The capacitively-coupled active electrode includes an electrode face configured to form capacitive coupling with a subject in a non-contact manner to detect a biosignal, and a pre-amplifier disposed on a rear side of the electrode face and embedded in a porous insulator.

Electrode for measuring biosignal and biosignal measurement device

The present invention provides a non-contact photoplethysmographic (PPG) pulse measurement device, and oxygen saturation and blood pressure measurement devices using the PPG pulse measurement device. The PPG pulse measurement device includes a sensing unit including at least two light emitting units for emitting light into a human body without making direct contact with skin, and a light receiving unit for sensing reflected light. A signal separation unit separates output of the sensing unit into a ripple component and a ripple-free component. A microprocessor unit monitors the ripple-free component and compares the ripple-free component with a DC signal value. A luminance adjustment unit adjusts luminance of the light emitting units. A filter and amplification unit eliminates noise from the ripple component. An A/D conversion unit converts output of the filter and amplification unit into a digital signal. A signal transmission unit transmits output of the A/D conversion unit.

Non-contact photoplethysmographic pulse measurement device and oxygen saturation and blood pressure measurement devices using the same

A scale-type nonconstrained health condition evaluating apparatus includes a load cell sensor for sensing a ballistocardiogram signal and a weight signal from a measured person, an electrocardiogram sensor for sensing an electrocardiogram signal from the measured person, and a signal processor for calculating at least one of the heart rate, normalized stroke volume force, blood pressure and equilibrium sense abnormality of the measured person from the ballistocardiogram, weight and electrocardiogram signals sensed by the load cell sensor and the electrocardiogram sensor.

Scale-type nonconstrained health condition evaluating apparatus and method

A dual video signal simultaneous recording system for a VCR in which two different source video signals are simultaneously recorded on one video tape. The system includes two additional video heads on the head drum each kept within angles of 90.degree. relative to the existing heads. A second video signal is fed to the additional video heads while keeping a predetermined delay period of time interval relative to a first video signal fed to the existing video heads. The system includes a first record system, synchronous separators, a gate array, an analog/digital converter, switches, field memories, a digital/analog converter, and a second record system. The system is also characterized in that the gate array outputs switching control signals, memory control signals, and conversion control signals derived from a head switching signal, a record signal, and synchronous signals. Furthermore, the azimuth angles of the additional video heads are different than the azimuth angles of the existing heads, so that two different source video signals input simultaneously can be recorded on one video tape by one video recorder and player.

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Seoul, South Korea

Kwang Suk Park