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    Direct frequency modulating radio-frequency sensors
    3.
    发明授权
    Direct frequency modulating radio-frequency sensors 有权

    公开(公告)号：US10238288B2

    公开(公告)日：2019-03-26

    申请号：US15624584

    申请日：2017-06-15

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Sidhant Gupta ,  Jonathan Lester ,  Vaishnavi Nattar Ranganathan

    IPC: A61B5/00 ,  H04Q9/00

    Abstract: A wearable radio frequency receiver device is provided, which includes a receiver antenna configured to receive an interrogation signal from a transmitter. The receiver device further includes a sensor coupled to the receiver antenna and configured to receive a physiological input from a user wearing the device and generate a sensor signal based on the physiological input, and a modulator configured to perform direct modulation on the received interrogation signal based on the sensor signal to encode the physiological input in the directly modulated interrogation signal. The receiver antenna may be configured to reflect at least a portion of the directly modulated interrogation signal as backscatter radiation. A transceiver including a transceiver antenna may be provided to receive the directly modulated interrogation signal, and the modulation receiver may be configured to process the directly modulated interrogation signal and output a decoded physiological input.

    Photoplethysmogram device with skin temperature regulator
    4.
    发明授权
    Photoplethysmogram device with skin temperature regulator 有权

    公开(公告)号：US11020014B2

    公开(公告)日：2021-06-01

    申请号：US16206708

    申请日：2018-11-30

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Sidhant Gupta ,  Jonathan Bernard Lester ,  Jeremiah Wander ,  Jessica De Souza

    IPC: A61B5/024 ,  A61B5/0205 ,  A61B5/1455 ,  A61F7/08 ,  A61B5/00

    Abstract: A photoplethysmogram device is provided comprising a light source configured to emit light to illuminate skin, a photo-detector configured to receive the light illuminating the skin and generate an electrical output as a function of an intensity of the received light, a skin temperature regulator configured to heat and/or cool a temperature of the skin adjacent to the photo-detector and light source to increase the signal-to-noise ratio (SNR) of the electrical output from the photo-detector, and a processor configured to generate, based on the electrical output, an output signal indicative of blood properties, including physiological parameters such as blood pressure, heart rate, stroke volume, cardiac output, total peripheral resistance, blood vessel elasticity, and arterial oxygen saturation.

    WEARABLE TONOMETER WITH RESILIENTLY DEFORMABLE PAD
    5.
    发明申请
    WEARABLE TONOMETER WITH RESILIENTLY DEFORMABLE PAD 审中-公开

    公开(公告)号：US20180199830A1

    公开(公告)日：2018-07-19

    申请号：US15406508

    申请日：2017-01-13

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Sumit Basu ,  Matthew Mickelson ,  T. Scott Saponas ,  Sidhant Gupta ,  Ronald E. Paulsen

    IPC: A61B5/021 ,  A61B5/00

    CPC classification number: A61B5/02108 ,  A61B5/02141 ,  A61B5/02241 ,  A61B5/6831 ,  A61B5/6843

    Abstract: A wearable tonometer is provided, comprising a sensing device. The sensing device may include a pressure sensor configured to measure a pulse pressure wave in an artery of user. The sensing device may include a resiliently deformable pad or pad-cap structure positioned on a sensing surface side of the pressure sensor and configured to contact skin of the user proximate the artery. The wearable tonometer may include a band that holds the sensing device in contact with the skin. In some embodiments, the sensing device may include a rigid internal structure configured to transmit the pulse pressure wave. In some embodiments, the wearable tonometer may include an adjustment mechanism configured to move the sensing device relative to the band. In some embodiments, the wearable tonometer may include a second resiliently deformable pad-cap structure, and a solid plate attached to the resiliently deformable pad-cap structures and the band.

    WEARABLE PULSE PRESSURE WAVE SENSING DEVICE
    8.
    发明申请
    WEARABLE PULSE PRESSURE WAVE SENSING DEVICE 审中-公开

    公开(公告)号：US20200329987A1

    公开(公告)日：2020-10-22

    申请号：US16915212

    申请日：2020-06-29

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： T. Scott Saponas ,  Dan Morris ,  Nicolas Villar ,  Shwetak Patel ,  Greg R. Smith ,  Desney Tan ,  Orestis Vardoulis ,  Sidhant Gupta

    IPC: A61B5/024 ,  A61B5/00 ,  A61B5/02

    Abstract: Wearable pulse pressure wave sensing devices are presented that generally provide a non-intrusive way to measure a pulse pressure wave travelling through an artery using a wearable device. In one implementation, the device includes an array of pressure sensors disposed on a mounting structure which is attachable to a user on an area proximate to an underlying artery. Each of the pressure sensors is capable of being mechanically coupled to the skin of the user proximate to the underlying artery. In addition, there are one or more arterial location sensors disposed on the mounting structure which identify a location on the user's skin likely overlying the artery. A pulse pressure wave is then measured using the pressure sensor of the array closest to the identified location.

    WRIST-WORN PULSE TRANSIT TIME SENSOR
    10.
    发明申请
    WRIST-WORN PULSE TRANSIT TIME SENSOR 审中-公开
    WRIST-WORN脉冲传输时间传感器

    公开(公告)号：US20160287172A1

    公开(公告)日：2016-10-06

    申请号：US14750646

    申请日：2015-06-25

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Daniel Morris ,  Desney S. Tan ,  T. Scott Saponas ,  Shwetak N. Patel ,  Nicolas Villar ,  Gregory R. Smith ,  Sidhant Gupta ,  Gabriel Adam Cohn ,  David C. Kale ,  Sailaja Malladi ,  Ronald E. Paulsen

    IPC: A61B5/00 ,  A61B5/0408 ,  A61B7/04 ,  A61B5/11 ,  A61B5/029 ,  A61B5/107 ,  A61B5/0205 ,  A61B5/02 ,  A61B5/022 ,  A61B5/021

    Abstract: A wrist-worn device heart-monitoring device is presented. The wrist-worn heart-monitoring device includes a radial tonometer configured to output a pressure signal indicating a pulse pressure wave at a user's wrist, two or more electrodes configured to output an electrical signal indicating a user's heart has been commanded to contract, and a microphone configured to output an audio signal indicating a closing of a user's aortic valve. The wrist-worn heart-monitoring device further includes a pulse transit time monitor configured to calculate a pre-ejection period of the user's heart based on at least the pressure, electrical, and audio signals, and calculate a pulse transit time based on at least the pre-ejection period, the pressure signal, and the electrical signal.

    Abstract translation: 提出了一种戴腕器的心脏监测装置。 手腕式心脏监测装置包括：径向眼压计，被配置为输出指示用户腕部的脉搏压力波的压力信号，被配置为输出指示用户心脏的电信号的两个或更多个电极被命令收缩， 被配置为输出指示用户主动脉瓣闭合的音频信号的麦克风。 手腕式心脏监测装置还包括脉冲传播时间监视器，其被配置为基于至少压力，电和音频信号来计算用户心脏的预喷射周期，并且至少基于至少 预喷射期间，压力信号和电信号。

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