OPTICAL IMAGE STABILIZATION DEVICES AND METHODS FOR GYROSCOPE ALIGNMENT

    公开(公告)号:US20180316840A1

    公开(公告)日:2018-11-01

    申请号:US15683176

    申请日:2017-08-22

    Inventor: Russel Martin

    Abstract: Disclosed are systems, devices, and methods for calibrating an optical image stabilization (OIS) module in a camera with a gyroscope. The OIS module is calibrated with a gyroscope in a two-step method. The first of the two-step method includes calibrating a lens to image sensor by determining a relationship between lens movement and image movement in the OIS module. The second of the two-step method includes calibrating a gyroscope to the image sensor by determining a relationship between gyroscope movement and image movement in the camera, where the camera includes the OIS module and the gyroscope. The relationship between lens movement and gyroscope movement can be determined to calibrate the OIS module with the gyroscope.

    Techniques for using rotation vectors for beam management in high frequency wireless networks

    公开(公告)号:US10931346B2

    公开(公告)日:2021-02-23

    申请号:US16281921

    申请日:2019-02-21

    Abstract: Methods, systems, computer-readable media, and apparatuses for beam management in a wireless communication system are presented. In some embodiments, a beam management subsystem in a moveable device selects a first antenna array and forms a first beam using the first antenna array for sending and receiving communication signals from a base station or other transceiver. A communication signal processing subsystem receives a first communication signal via the first beam. Upon movement of the moveable device, an inertial navigation subsystem determines a rotation vector associated with the movement. In response to the inertial navigation subsystem determining the rotation vector, the beam management subsystem selects a second antenna array using the rotation vector and forms a second beam directed toward the base station using the second antenna array. The communication signal processing subsystem can receive a second communication signal via the second beam.

    Estimating heart rate by tracking optical signal frequency components

    公开(公告)号:US10342441B2

    公开(公告)日:2019-07-09

    申请号:US15012673

    申请日:2016-02-01

    Abstract: Methods, systems, computer-readable media, and apparatuses for estimating a user's heart rate using a PG signal are presented. In some implementations, the heart rate is estimated by computing a frequency-domain PG, identifying one or more features in the frequency-domain PG, selecting qualified features from the one or more features, and constructing one or more traces. In some implementations, an accelerometer signal can be used for motion cancellation to eliminate traces that are motion artifacts.

    CARDIOVASCULAR PARAMETER ESTIMATION IN THE PRESENCE OF MOTION

    公开(公告)号:US20180160912A1

    公开(公告)日:2018-06-14

    申请号:US15457702

    申请日:2017-03-13

    Abstract: Disclosed embodiments pertain to cardiovascular parameter (e.g. heart rate) measurements when motion is present. Biometric sensor signal measurements may be obtained based on cardiovascular parameters of a user; and motion sensor signal measurements may be obtained based on user motion. An activity type may be determined based on the motion sensor signals. For example, when non-motion related frequencies in a frequency domain representation of the biometric sensor signal are obscured by user motion, an activity type may be determined based on the motion sensor signals. Further, based on the activity type, for each cardiovascular parameter (e.g. heart rate), a corresponding likely cardiovascular parameter value (e.g. a likely heart rate) may be determined. A corresponding fundamental frequency associated with the biometric sensor signal may then be determined for each cardiovascular parameter based on the motion sensor signal measurements and the corresponding likely cardiovascular parameter value.

    Cardiovascular parameter estimation in the presence of motion

    公开(公告)号:US10743777B2

    公开(公告)日:2020-08-18

    申请号:US15457702

    申请日:2017-03-13

    Abstract: Disclosed embodiments pertain to cardiovascular parameter (e.g. heart rate) measurements when motion is present. Biometric sensor signal measurements may be obtained based on cardiovascular parameters of a user; and motion sensor signal measurements may be obtained based on user motion. An activity type may be determined based on the motion sensor signals. For example, when non-motion related frequencies in a frequency domain representation of the biometric sensor signal are obscured by user motion, an activity type may be determined based on the motion sensor signals. Further, based on the activity type, for each cardiovascular parameter (e.g. heart rate), a corresponding likely cardiovascular parameter value (e.g. a likely heart rate) may be determined. A corresponding fundamental frequency associated with the biometric sensor signal may then be determined for each cardiovascular parameter based on the motion sensor signal measurements and the corresponding likely cardiovascular parameter value.

    ESTIMATING HEART RATE BY TRACKING OPTICAL SIGNAL FREQUENCY COMPONENTS
    7.
    发明申请
    ESTIMATING HEART RATE BY TRACKING OPTICAL SIGNAL FREQUENCY COMPONENTS 审中-公开
    通过跟踪光信号频率分量估计心率

    公开(公告)号:US20160249820A1

    公开(公告)日:2016-09-01

    申请号:US15012673

    申请日:2016-02-01

    Abstract: Methods, systems, computer-readable media, and apparatuses for estimating a user's heart rate using a PG signal are presented. In some implementations, the heart rate is estimated by computing a frequency-domain PG, identifying one or more features in the frequency-domain PG, selecting qualified features from the one or more features, and constructing one or more traces. In some implementations, an accelerometer signal can be used for motion cancellation to eliminate traces that are motion artifacts.

    Abstract translation: 提出了使用PG信号估计用户心率的方法,系统,计算机可读介质和装置。 在一些实施方案中,通过计算频域PG,识别频域PG中的一个或多个特征,从一个或多个特征选择合格特征,以及构建一个或多个迹线来估计心率。 在一些实施方案中,加速度计信号可用于运动消除以消除作为运动伪影的迹线。

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