Abstract: An electrocardiogram (ECG) measurement device for a vehicle is provided. The ECG measurement device includes an impedance compensator that corresponds to an electrode in contact with a body of a driver and configured to compensate an impedance of each of electrode signals received from the electrode. An electrode selector sequentially selects the electrode signals in response to receiving the electrode signals from the electrode. A differential amplifier differentially amplifies the electrode signals. In particular, each electrode signal has the compensated impedance. Additionally, a signal quality evaluator evaluates quality of an ECG signal output from the differential amplifier and a compensation controller then adjusts an impedance compensation value of each of the impedance compensators as a result of evaluating the quality of the ECG signal.

Abstract: A method for managing biometric information is provided. The method includes the steps of: determining whether a cardiac disorder event has occurred to a user on the basis of biometric information measured from the user's body and situation information associated with the biometric information; providing alarm information associated with the cardiac disorder event to the user in response to determining that the cardiac disorder event has occurred; and associating a time point of occurrence of the cardiac disorder event with feedback information acquired from the user in response to the provided alarm information.

Abstract: A method for monitoring biosignals using a wearable device is provided. The method includes the steps of: acquiring information on a result of performing a primary analysis of a biosignal measured by the device, using a primary analysis model trained to perform a primary analysis for detecting abnormal events from biosignals, and acquiring, from the biosignal, a partial biosignal associated with the result of performing the primary analysis; and performing a secondary analysis of the partial biosignal with reference to the information on the result of performing the primary analysis, using a secondary analysis model trained to perform a secondary analysis for detecting abnormal events from biosignals, wherein the primary analysis model is a relatively light-weighted model compared to the secondary analysis model.

Abstract: A method for managing biometric information is provided. The method includes the steps of: determining whether a cardiac disorder event has occurred to a user on the basis of biometric information measured from the user's body and situation information associated with the biometric information; providing alarm information associated with the cardiac disorder event to the user in response to determining that the cardiac disorder event has occurred; and associating a time point of occurrence of the cardiac disorder event with feedback information acquired from the user in response to the provided alarm information.

Abstract: An electrocardiogram (ECG) measurement device for a vehicle is provided. The ECG measurement device includes an impedance compensator that corresponds to an electrode in contact with a body of a driver and configured to compensate an impedance of each of electrode signals received from the electrode. An electrode selector sequentially selects the electrode signals in response to receiving the electrode signals from the electrode. A differential amplifier differentially amplifies the electrode signals. In particular, each electrode signal has the compensated impedance. Additionally, a signal quality evaluator evaluates quality of an ECG signal output from the differential amplifier and a compensation controller then adjusts an impedance compensation value of each of the impedance compensators as a result of evaluating the quality of the ECG signal.

Abstract: An electrocardiogram (ECG) measurement device for a vehicle is provided. The ECG measurement device includes an impedance compensator that corresponds to an electrode in contact with a body of a driver and configured to compensate an impedance of each of electrode signals received from the electrode. An electrode selector sequentially selects the electrode signals in response to receiving the electrode signals from the electrode. A differential amplifier differentially amplifies the electrode signals. In particular, each electrode signal has the compensated impedance. Additionally, a signal quality evaluator evaluates quality of an ECG signal output from the differential amplifier and a compensation controller then adjusts an impedance compensation value of each of the impedance compensators as a result of evaluating the quality of the ECG signal.

Abstract: A method for estimating arrhythmia comprises analyzing a target biosignal of a subject using a first artificial neural network based on binary classification and trained on data regarding biosignals corresponding to a first type of arrhythmic state, and a second artificial neural network based on binary classification and trained on data regarding biosignals corresponding to a second type of arrhythmic state, thereby calculating a first score for whether at least a part of the target biosignal corresponds to the first type of arrhythmic state, and a second score for whether at least a part of the target biosignal corresponds to the second type of arrhythmic state, respectively; and estimating types of arrhythmic state to which at least a part of the target biosignal corresponds, on the basis of the scores and a training index of each of a plurality of artificial neural networks including the first and second artificial neural networks.

Abstract: Earphones comprise a first earphone for collecting a first biosignal and a second earphone for collecting a second biosignal. The second earphone is wirelessly connected to the first earphone and configured to quantize the second biosignal into a second digital signal and transmit the second digital signal to the first earphone together with a set of marker bits representing a time at which the second biosignal is collected. The first earphone includes a biosignal processor configured to quantize the first biosignal into a first digital signal and synchronize the first and second digital signals with reference to the set of marker bits to generate an electrocardiogram (ECG) signal; and a transmitter configured to transmit the ECG signal to a digital device wirelessly connected to the first earphone.

Abstract: Blood glucose measurement methods and apparatuses are provided using multiple body signals. The methods and apparatuses are employed to estimate blood glucose in a noninvasive manner by using a change in the absorbance of glucose according to a blood glucose level and to correct the estimated blood glucose using different types of blood glucose measurement methods. The blood glucose measurement apparatus includes a main body worn on a human body, a first light source provided on an inner surface of the main body, a second light source provided on the inner surface of the main body, a light receiver configured to receive light from the first light source and the second light source, and a calculator configured to calculate a glucose level in blood based on an amount of light received by the light receiver and configured to measure blood glucose.

Abstract: An electrocardiogram (ECG) measurement device for a vehicle is provided. The ECG measurement device includes an impedance compensator that corresponds to an electrode in contact with a body of a driver and configured to compensate an impedance of each of electrode signals received from the electrode. An electrode selector sequentially selects the electrode signals in response to receiving the electrode signals from the electrode. A differential amplifier differentially amplifies the electrode signals. In particular, each electrode signal has the compensated impedance. Additionally, a signal quality evaluator evaluates quality of an ECG signal output from the differential amplifier and a compensation controller then adjusts an impedance compensation value of each of the impedance compensators as a result of evaluating the quality of the ECG signal.

Abstract: 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.

Abstract: 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.

Abstract: Provided herein are biosignal measurement means and a biosignal monitoring system using, for example, an earphone. For example in one embodiment, an earphone is provided that includes a first sensor disposed around an output of a left earphone, a second sensor disposed around an output of a right earphone, and a transmitter configured to transmit bio-signals acquired from the first sensor and the second sensor to a digital device. The first sensor can include a first bio-signal electrode, and the second sensor can include a second bio-signal electrode.

Abstract: Methods, systems, and non-transitory computer-readable recording media for monitoring blood pressure are provided. The method includes calculating an estimate of deviations between every two pulse transit time (PTT) values measured at an interval of a first period, and estimating a PTT value to be measured the first period after a current time. The method also includes calculating an estimate of deviations between every two oxygen saturation values measured at an interval of a second period, and estimating an oxygen saturation value to be measured the second period after the current time. The method additionally includes calculating current systolic blood pressure and diastolic blood pressure based on an electrocardiogram (ECG) value measured at the current time, the estimated PTT value, and the estimated oxygen saturation value.

Abstract: A system is provided for monitoring a blood pressure in real time, including a main body and a sensor including a first electrode that is disposed on one surface of the main body and in contact with a human body when the main body is worn on the human body, a second electrode that is disposed on the other surface of the main body, and configured to measure a signal relating to at least one of electrocardiogram (ECG), photoplethysmogram (PPG) and oxygen saturation (SpO2) of the human body in contact with the first electrode and the second electrode.

Abstract: Methods, systems, and non-transitory computer-readable recording media are provided for measuring multiple bio-signals. A method is provided for measuring multiple bio-signals including acquiring a first bio-signal from a first device disposed at a first point on a human body. The method also includes acquiring a second bio-signal from a second device disposed at a second point on the human body. The method additionally includes quantizing the acquired first bio-signal and second bio-signal. The method further includes synchronizing the quantized first bio-signal and second bio-signal. The method also includes generating biometric information with reference to the synchronized first bio-signal and second bio-signal.

Abstract: A mobile terminal having a function of measuring biometric signals from a user is provided. The mobile terminal includes a main body and a display, which is formed at a front of the main body and configured to display information to a user. The display includes a measurement area configured to measure biometric signals from the user. A pixel structure formed in the measurement area of the display includes red (R) sub-pixels configured to generate R light, and infrared (IR) sub-pixels configured to generate IR light. The measurement area of the display includes a light-receiver, which receives light reflected from the body of the user. The mobile terminal is configured to measure at least one of a photoplethysmogram (PPG) signal and an oxygen saturation (SpO2) signal through the measurement area.

Abstract: 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.

Abstract: Blood glucose measurement methods and apparatuses are provided using multiple body signals. The methods and apparatuses are employed to estimate blood glucose in a noninvasive manner by using a change in the absorbance of glucose according to a blood glucose level and to correct the estimated blood glucose using different types of blood glucose measurement methods. The blood glucose measurement apparatus includes a main body worn on a human body, a first light source provided on an inner surface of the main body, a second light source provided on the inner surface of the main body, a light receiver configured to receive light from the first light source and the second light source, and a calculator configured to calculate a glucose level in blood based on an amount of light received by the light receiver and configured to measure blood glucose.