Apparatus and method for measuring pulse wave

    公开(公告)号:US10159417B2

    公开(公告)日:2018-12-25

    申请号:US14798572

    申请日:2015-07-14

    Abstract: There are provided an apparatus and a method for measuring pulse waves. The pulse wave measuring apparatus includes a receiver configured to receive pulse wave signals sensed at at least two points of an object; an analog signal processor configured to amplify a voltage difference between two pulse wave signals from among the received pulse wave signals and integrate the amplified voltage difference; and a digital signal processor configured to analog to digital convert a value of the integrated amplified voltage difference and obtain, from the converted value, a pulse transit time between the two points corresponding to the two pulse wave signals.

    Apparatus and method for detecting biological information

    公开(公告)号:US11229363B2

    公开(公告)日:2022-01-25

    申请号:US16540738

    申请日:2019-08-14

    Abstract: Provided are apparatuses and methods for detecting biological information. An apparatus for detecting biological information may include a biological signal measurement unit having at least two light emission elements having different light emission angles. The at least two light emission elements may include different types of light sources. The at least two light emission elements may include multiple light sources of the same type, and in this case, an optical element configured to adjust a light emission angle of one of the light sources may be provided. The apparatus for detecting biological information may include a biological signal measurement unit including a light emitting unit having variable light emission angle. The apparatus for detecting biological information may further include a data processor configured to extract and analyze biological information of a subject from data measured by the biological signal measurement unit.

    Apparatus and method for detecting biological information

    公开(公告)号:US10420470B2

    公开(公告)日:2019-09-24

    申请号:US15013385

    申请日:2016-02-02

    Abstract: Provided are apparatuses and methods for detecting biological information. An apparatus for detecting biological information may include a biological signal measurement unit having at least two light emission elements having different light emission angles. The at least two light emission elements may include different types of light sources. The at least two light emission elements may include multiple light sources of the same type, and in this case, an optical element configured to adjust a light emission angle of one of the light sources may be provided. The apparatus for detecting biological information may include a biological signal measurement unit including a light emitting unit having variable light emission angle. The apparatus for detecting biological information may further include a data processor configured to extract and analyze biological information of a subject from data measured by the biological signal measurement unit.

    Device and system for measuring biometric information

    公开(公告)号:US10342496B2

    公开(公告)日:2019-07-09

    申请号:US14809623

    申请日:2015-07-27

    Abstract: A biometric information measuring device includes a pulse wave measuring module configured to measure pulse waves by emitting light toward a target object and sensing light reflected from the target object; a communication module configured to obtain calibration information from a remote calibration server; and a biometric information analyzing module configured to analyze biometric information based on the measured pulse waves and the calibration information. The calibration information indicates biometric information measurement variables of a plurality of subjects.

    Apparatus and method of measuring pulse wave

    公开(公告)号:US10314545B2

    公开(公告)日:2019-06-11

    申请号:US14757554

    申请日:2015-12-24

    Abstract: Provided is an apparatus and method of measuring a pulse wave. The method includes: causing receivers to respectively receive pulse wave signals that are detected at two points of an object, determining an effective pulse wave signal period by using the received pulse wave signals, and obtaining a pulse transit time (PTT) between the two points by using a result obtained after comparing a magnitude of an output signal of each of the receivers with a value that is less by a predetermined percentage than a peak value of an output signal of each of the receivers during the determined effective pulse wave signal period.

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