Methods and apparatuses for monitoring fetal heartbeat and uterine contraction signals

    公开(公告)号:US11534135B2

    公开(公告)日:2022-12-27

    申请号:US17033510

    申请日:2020-09-25

    Abstract: Aspects of the technology described herein related to monitoring fetal heartbeat and uterine contraction signals. An ultrasound system may be configured to sweep a volume to collect ultrasound data, detect a fetal heartbeat and/or uterine contraction signal in the ultrasound data, and automatically steer an ultrasound beam to monitor the fetal heartbeat and/or uterine contraction signal. The ultrasound system may be further configured to determine a location where the fetal heartbeat and/or uterine contraction signal is detectable or detectable at a highest quality. The ultrasound system may include a wearable ultrasound device, such as an ultrasound patch coupled to a subject. The wearable ultrasound device may have a two-dimensional array of ultrasonic transducers capable of steering ultrasound beams in three dimensions.

    Methods and apparatus for collection of ultrasound data

    公开(公告)号:US11478218B2

    公开(公告)日:2022-10-25

    申请号:US16118256

    申请日:2018-08-30

    Inventor: Alex Rothberg

    Abstract: Aspects of the technology described herein relate to instructing an operator to move an ultrasound device along a predetermined path relative to an anatomical area in order to collect first ultrasound data and second ultrasound data, the first ultrasound data capable of being transformed into an ultrasound image of a target anatomical view, and the second ultrasound data not capable of being transformed into the ultrasound image of the target anatomical view.

    ULTRASOUND DEVICE CIRCUITRY INCLUDING PHASE-LOCKED LOOP CIRCUITRY AND METHODS OF OPERATING THE SAME

    公开(公告)号:US20220233174A1

    公开(公告)日:2022-07-28

    申请号:US17586656

    申请日:2022-01-27

    Inventor: Sewook Hwang

    Abstract: Aspects of the technology described herein relate to an ultrasound device that may has a phase-locked loop (PLL) that includes a digitally-controlled oscillator (DCO). The DCO includes a plurality of current source unit cells with respective drain switches a plurality of current source unit cells with respective source switches. The plurality of current source unit cells with respective drain switches and the plurality of current source unit cells may have different circuit topologies. Switching on one of the plurality of current source unit cells with respective drain switches may cause a voltage transition at an internal node proceeding in one voltage direction and switching on one of the plurality of current source unit cells with respective source switches may cause a voltage transition at an internal node proceeding in the opposite voltage direction.

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