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    Methods and apparatuses for turning on and off an ADC driver in an ultrasound device
    22.
    发明授权
    Methods and apparatuses for turning on and off an ADC driver in an ultrasound device 有权

    公开(公告)号：US11558062B2

    公开(公告)日：2023-01-17

    申请号：US16937553

    申请日：2020-07-23

    Applicant: BFLY Operations, Inc.

    Inventor： Sewook Hwang ,  Jungwook Yang ,  Kailiang Chen ,  Nevada J. Sanchez ,  Keith G. Fife

    IPC: H03M1/12 ,  A61B8/00 ,  G01S7/52 ,  A61B8/12 ,  H03M1/00

    Abstract: Aspects of the technology described herein relate to control circuitry configured to turn on and off the ADC driver. In some embodiments, the control circuitry is configured to turn on and off the ADC driver in synchronization with sampling activity of an ADC, in particular based on when an ADC is sampling. The control circuitry may be configured to turn on the ADC driver during the hold phase of the ADC a time period before the track phase and to turn off the ADC driver during the hold phase a time period after the track phase. In some embodiments, the control circuitry is configured to control a duty cycle of the ADC driver turning on and off. In some embodiments, the control circuitry is configured to control a ratio between an off current and an on current in the ADC driver.

    Methods and apparatuses for processing ultrasound signals
    23.
    发明授权
    Methods and apparatuses for processing ultrasound signals 有权

    公开(公告)号：US11536818B2

    公开(公告)日：2022-12-27

    申请号：US16910897

    申请日：2020-06-24

    Applicant: BFLY OPERATIONS, INC.

    Inventor： Jungwook Yang ,  Daniel Rea McMahill ,  Kailiang Chen ,  Nevada J. Sanchez

    IPC: H03M7/16 ,  G01S7/52 ,  A61B8/08 ,  A61B8/00

    Abstract: Aspects of the technology described herein related to an ultrasound processing unit (UPU) including gray-coding circuitry configured to convert standard binary-coded digital ultrasound signals to gray-coded digital ultrasound signals and gray-decoding circuitry coupled to the gray-coding circuitry and configured to convert the gray-coded digital ultrasound signals to standard binary-coded digital ultrasound signals. The UPU may include an analog portion, a digital portion, and a data bus configured to route the gray-coded digital ultrasound signals from the analog portion to the digital portion subsequent to converting the standard binary-coded digital ultrasound signals to the gray-coded digital ultrasound signals. The analog portion may include multiple analog front-ends (AFEs), the gray-coding circuitry, and an analog-to-digital converter. The digital portion may include the gray-decoding circuitry. A data bus from one AFE may pass over another AFE.

    ULTRASOUND APPARATUSES AND METHODS FOR FABRICATING ULTRASOUND DEVICES
    24.
    发明申请
    ULTRASOUND APPARATUSES AND METHODS FOR FABRICATING ULTRASOUND DEVICES 有权

    公开(公告)号：US20220313219A1

    公开(公告)日：2022-10-06

    申请号：US17845940

    申请日：2022-06-21

    Applicant: BFLY Operations, Inc.

    Inventor： Kailiang Chen ,  Nevada J. Sanchez ,  Susan A. Alie ,  Tyler S. Ralston ,  Jonathan M. Rothberg ,  Keith G. Fife ,  Joseph Lutsky

    IPC: A61B8/08 ,  H04B11/00 ,  A61B8/00

    Abstract: Aspects of the technology described herein relate to an ultrasound device including a first die that includes an ultrasonic transducer, a first application-specific integrated circuit (ASIC) that is bonded to the first die and includes a pulser, and a second ASIC in communication with the second ASIC that includes integrated digital receive circuitry. In some embodiments, the first ASIC may be bonded to the second ASIC and the second ASIC may include analog processing circuitry and an analog-to-digital converter. In such embodiments, the second ASIC may include a through-silicon via (TSV) facilitating communication between the first ASIC and the second ASIC. In some embodiments, SERDES circuitry facilitates communication between the first ASIC and the second ASIC and the first ASIC includes analog processing circuitry and an analog-to-digital converter. In some embodiments, the technology node of the first ASIC is different from the technology node of the second ASIC.

    MULTILEVEL BIPOLAR PULSER
    25.
    发明申请
    MULTILEVEL BIPOLAR PULSER 有权

    公开(公告)号：US20220179058A1

    公开(公告)日：2022-06-09

    申请号：US17682937

    申请日：2022-02-28

    Applicant: BFLY Operations, Inc.

    Inventor： Kailiang Chen ,  Tyler S. Ralston ,  Keith G. Fife

    IPC: G01S7/52 ,  G01S15/89 ,  G01S7/521

    Abstract: Circuitry for ultrasound devices is described. A multilevel pulser is described, which can provide bipolar pulses of multiple levels. The multilevel pulser includes a pulsing circuit and pulser and feedback circuit. Symmetric switches are also described. The symmetric switches can be positioned as inputs to ultrasound receiving circuitry to block signals from the receiving circuitry.

    MULTI-LEVEL PULSER AND RELATED APPARATUS AND METHODS
    27.
    发明申请
    MULTI-LEVEL PULSER AND RELATED APPARATUS AND METHODS 有权

    公开(公告)号：US20220099815A1

    公开(公告)日：2022-03-31

    申请号：US17492212

    申请日：2021-10-01

    Applicant: BFLY Operations, Inc.

    Inventor： Kailiang Chen ,  Tyler S. Ralston

    IPC: G01S7/524 ,  A61B8/00 ,  G01S7/52 ,  G01S7/521 ,  H03K19/0175

    Abstract: Apparatus and methods are provided directed to a device, including at least one ultrasonic transducer, a multi-level pulser coupled to the at least one ultrasonic transducer; the multi-level pulser including a plurality of input terminals configured to receive respective input voltages, an output terminal configured to provide an output voltage, and a signal path between a first input terminal and the output terminal including a first transistor having a first conductivity type coupled to a first diode and, in parallel, a second transistor having a second conductivity type coupled to a second diode.

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