公开(公告)号：US20200085314A1

公开(公告)日：2020-03-19

申请号：US16694402

申请日：2019-11-25

Applicant: Valencell, Inc.

Inventor： Eric Douglas Romesburg

IPC: A61B5/024 ,  A61B5/00 ,  A61B5/11

Abstract: The heart rate monitor disclosed herein removes a step rate component from a measured heart rate by using one or more filtering techniques when the step rate is close to the heart rate. In general, a difference between the step rate and the heart rate is determined, and the step rate is filtered from the heart rate based on a function of the difference.

公开(公告)号：US20190336080A1

公开(公告)日：2019-11-07

申请号：US16516845

申请日：2019-07-19

Applicant: Valencell, Inc.

Inventor： Steven F. LeBoeuf ,  Michael Edward Aumer ,  Eric Douglas Romesburg

IPC: A61B5/00 ,  G16H20/17 ,  G16H40/63 ,  A61B5/024 ,  A61B5/11 ,  A61B5/026 ,  A61B5/0205 ,  A61B5/021

Abstract: The methods and apparatuses presented herein determine and/or improve the quality of one or more physiological assessment parameters, e.g., response-recovery rate, based on biometric signal(s) and/or motion signal(s) respectively output by one or more biometric and/or motion sensors. The disclosed methods and apparatuses also estimate a user's stride length based on a motion signal and a determined type of user motion, e.g., walking or running. The speed of the user may then be estimated based on the estimated stride length.

公开(公告)号：US20180049645A1

公开(公告)日：2018-02-22

申请号：US15784960

申请日：2017-10-16

Applicant: Valencell, Inc.

Inventor： Eric Douglas Romesburg

IPC: A61B5/00 ,  A61B5/0402 ,  A61B5/024 ,  A61B5/0476 ,  A61B5/04 ,  A61B5/0245 ,  A61B5/0205 ,  A61B5/08

CPC classification number: A61B5/0095 ,  A61B5/0059 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/0245 ,  A61B5/04017 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/0816 ,  A61B5/7225 ,  A61B5/725 ,  A61B5/7278

Abstract: A physiological signal processing system for a physiological waveform that includes a cardiovascular signal component provides a variable high pass filter that is responsive to the physiological waveform, and that is configured to high pass filter the physiological waveform in response to a corner frequency that is applied. A heart rate metric extractor is responsive to the variable high pass filter and is configured to extract a heart rate metric from the physiological waveform that is high pass filtered. A corner frequency adjuster is responsive to the heart rate metric extractor and is configured to determine the corner frequency that is applied to the variable high pass filter, based on the heart rate metric that was extracted. Analogous methods may also be provided.

公开(公告)号：US20220192527A1

公开(公告)日：2022-06-23

申请号：US17691919

申请日：2022-03-10

Applicant: Valencell, Inc.

Inventor： Steven F. LeBoeuf ,  Michael Edward Aumer ,  Eric Douglas Romesburg

IPC: A61B5/024 ,  G16H40/63 ,  A61B5/00 ,  A61B5/11 ,  G16H20/40 ,  G16H20/30 ,  G16H40/67 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/026 ,  G16H20/17

Abstract: A wearable device collects a plurality of photoplethysmography (PPG) waveforms from a PPG sensor in the wearable device and collects inertial data associated with subject motion from an inertial sensor in the wearable device. The wearable device processes the inertial data in an assessment processor of the wearable device to determine a data integrity of the plurality of PPG waveforms and, responsive to the determined data integrity, processes the plurality of PPG waveforms in the assessment processor using a neural network comprising thousands of coefficients to generate an assessment of the subject blood pressure.

公开(公告)号：US11363987B2

公开(公告)日：2022-06-21

申请号：US15958113

申请日：2018-04-20

Applicant: Valencell, Inc.

Inventor： Eric Douglas Romesburg

IPC: A61B5/00 ,  A61B5/11 ,  G01C22/00

Abstract: The method and apparatus disclosed herein determine a user cadence from the output of an inertial sensor mounted to or proximate the user's body. In general, the disclosed cadence measurement system determines the user cadence based on frequency measurements acquired from an inertial signal output by the inertial sensor. More particularly, a cadence measurement system determines a user cadence from an inertial signal generated by an inertial sensor, where the inertial signal comprises one or more frequency components. The cadence measurement system determines a peak frequency of the inertial signal, where the peak frequency corresponds to the frequency component of the inertial signal having the largest amplitude. After applying the peak frequency to one or more frequency threshold comparisons, the cadence measurement system determines the user cadence based on the peak frequency and the frequency threshold comparison(s).

公开(公告)号：US11324445B2

公开(公告)日：2022-05-10

申请号：US16169375

申请日：2018-10-24

Applicant: Valencell, Inc.

Inventor： Steven Francis LeBoeuf ,  Jesse Berkley Tucker ,  Michael Edward Aumer ,  Eric Douglas Romesburg ,  Joseph Norman Morris

IPC: A61B5/026 ,  A61B5/0205 ,  A61B5/00 ,  A61B5/1455 ,  G16H40/63 ,  G16Z99/00 ,  A61B5/021 ,  A61B5/024 ,  A61B5/08 ,  A61B6/00 ,  A61B8/02 ,  A61B8/04 ,  A61B8/06 ,  A61B5/145

Abstract: A headset includes a housing defining an audio cavity, a speaker located within the audio cavity, and first and second sensor modules within the housing in spaced-apart, angled relationship to each other. The housing includes an aperture through which sound from the speaker can pass, and the first and second sensor modules are on opposing sides of a direction from the speaker to the aperture. The first sensor module is configured to direct electromagnetic radiation at a first target region of an ear of a person wearing the headset and to detect a first energy response signal therefrom that is associated with one or more physiological metrics of the subject, and the second sensor module is configured to direct electromagnetic radiation at a second target region of the ear and to detect a second energy response signal therefrom that is associated with the one or more physiological metrics.

公开(公告)号：US20200077899A1

公开(公告)日：2020-03-12

申请号：US16683884

申请日：2019-11-14

Applicant: Valencell, Inc.

Inventor： Eric Douglas Romesburg

IPC: A61B5/00 ,  A61B5/04 ,  A61B5/024 ,  A61B5/0245 ,  A61B5/0402 ,  A61B5/0476

Abstract: A physiological signal processing system for a physiological waveform that includes a cardiovascular signal component provides a variable high pass filter that is responsive to the physiological waveform, and that is configured to high pass filter the physiological waveform in response to a corner frequency that is applied. A heart rate metric extractor is responsive to the variable high pass filter and is configured to extract a heart rate metric from the physiological waveform that is high pass filtered. A corner frequency adjuster is responsive to the heart rate metric extractor and is configured to determine the corner frequency that is applied to the variable high pass filter, based on the heart rate metric that was extracted. Analogous methods may also be provided.

公开(公告)号：US10512403B2

公开(公告)日：2019-12-24

申请号：US15784960

申请日：2017-10-16

Applicant: Valencell, Inc.

Inventor： Eric Douglas Romesburg

IPC: A61B5/00 ,  A61B5/04 ,  A61B5/024 ,  A61B5/0245 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/08 ,  A61B5/0205

Abstract: A physiological signal processing system for a physiological waveform that includes a cardiovascular signal component provides a variable high pass filter that is responsive to the physiological waveform, and that is configured to high pass filter the physiological waveform in response to a corner frequency that is applied. A heart rate metric extractor is responsive to the variable high pass filter and is configured to extract a heart rate metric from the physiological waveform that is high pass filtered. A corner frequency adjuster is responsive to the heart rate metric extractor and is configured to determine the corner frequency that is applied to the variable high pass filter, based on the heart rate metric that was extracted. Analogous methods may also be provided.

公开(公告)号：US20190053764A1

公开(公告)日：2019-02-21

申请号：US16169375

申请日：2018-10-24

Applicant: Valencell, Inc.

Inventor： Steven Francis LeBoeuf ,  Jesse Berkley Tucker ,  Michael Edward Aumer ,  Eric Douglas Romesburg ,  Joseph Norman Morris

IPC: A61B5/00 ,  A61B5/1455 ,  G06F19/00 ,  G16H40/63 ,  A61B5/026 ,  A61B5/024 ,  A61B5/021 ,  A61B5/0205 ,  A61B5/08 ,  A61B5/145 ,  A61B6/00 ,  A61B8/02 ,  A61B8/04 ,  A61B8/06

Abstract: A headset includes a housing defining an audio cavity, a speaker located within the audio cavity, and first and second sensor modules within the housing in spaced-apart, angled relationship to each other. The housing includes an aperture through which sound from the speaker can pass, and the first and second sensor modules are on opposing sides of a direction from the speaker to the aperture. The first sensor module is configured to direct electromagnetic radiation at a first target region of an ear of a person wearing the headset and to detect a first energy response signal therefrom that is associated with one or more physiological metrics of the subject, and the second sensor module is configured to direct electromagnetic radiation at a second target region of the ear and to detect a second energy response signal therefrom that is associated with the one or more physiological metrics.

公开(公告)号：US09993204B2

公开(公告)日：2018-06-12

申请号：US14655992

申请日：2014-01-06

Applicant: Valencell, Inc.

Inventor： Eric Douglas Romesburg

IPC: A61B5/00 ,  A61B5/11 ,  G01C22/00

CPC classification number: A61B5/721 ,  A61B5/11 ,  A61B5/112 ,  A61B5/6817 ,  A61B5/7235 ,  A61B5/7246 ,  A61B5/7278 ,  A61B2562/0214 ,  A61B2562/0219 ,  A61B2562/0233 ,  A61B2562/028 ,  G01C22/006

Abstract: The method and apparatus disclosed herein determine a user cadence from the output of an inertial sensor mounted to or proximate the user's body. In general, the disclosed cadence measurement system determines the user cadence based on frequency measurements acquired from an inertial signal output by the inertial sensor. More particularly, a cadence measurement system determines a user cadence from an inertial signal generated by an inertial sensor, where the inertial signal comprises one or more frequency components. The cadence measurement system determines a peak frequency of the inertial signal, where the peak frequency corresponds to the frequency component of the inertial signal having the largest amplitude. After applying the peak frequency to one or more frequency threshold comparisons, the cadence measurement system determines the user cadence based on the peak frequency and the frequency threshold comparison(s).