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11.发明授权公开(公告)号：US09705518B2
公开(公告)日：2017-07-11
申请号：US14957418
申请日：2015-12-02
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Tyler S. Ralston
CPC classification number: H03M1/002 , A61B8/4483 , A61B8/4494 , A61B8/54 , H03M1/125 , H03M1/462
Abstract: An ultrasound device including an asynchronous successive approximation analog-to-digital converter and method are provided. The device includes at least one ultrasonic transducer, a plurality of asynchronous successive-approximation-register (SAR) analog-to-digital converters (ADC) coupled to the at least one ultrasonic transducer, at least one asynchronous SAR in the plurality having a sample and hold stage, a digital-to-analog converter (DAC), a comparator, and control circuitry, wherein a DAC update event following at least one bit conversion is synchronized to a corresponding DAC update event of at least one other ADC in the plurality of ADCs.
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公开(公告)号：US20210384872A1
公开(公告)日：2021-12-09
申请号：US17331538
申请日：2021-05-26
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Keith G. Fife , Nevada J. Sanchez , Andrew J. Casper , Tyler S. Ralston
Abstract: A variable current trans-impedance amplifier (TIA) for an ultrasound device is described. The TIA may be coupled to an ultrasonic transducer to amplify an output signal of the ultrasonic transducer representing an ultrasound signal received by the ultrasonic transducer. During acquisition of the ultrasound signal by the ultrasonic transducer, one or more current sources in the TIA may be varied.
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公开(公告)号：US11128267B2
公开(公告)日：2021-09-21
申请号：US16178117
申请日：2018-11-01
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Keith G. Fife , Nevada J. Sanchez , Andrew J. Casper , Tyler S. Ralston
Abstract: A variable current trans-impedance amplifier (TIA) for an ultrasound device is described. The TIA may be coupled to an ultrasonic transducer to amplify an output signal of the ultrasonic transducer representing an ultrasound signal received by the ultrasonic transducer. During acquisition of the ultrasound signal by the ultrasonic transducer, one or more current sources in the TIA may be varied.
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公开(公告)号：US20190142389A1
公开(公告)日：2019-05-16
申请号：US16244739
申请日：2019-01-10
Applicant: Butterfly Network, Inc.
Inventor： Amandeep Singh , Kailiang Chen , Tyler S. Ralston
Abstract: An ultrasound circuit comprising a multi-stage trans-impedance amplifier (TIA) is described. The TIA is coupled to an ultrasonic transducer to amplify an electrical signal generated by the ultrasonic transducer in response to receiving an ultrasound signal. The TIA may include multiple stages, at least two of which operate with different supply voltages. The TIA may be followed by further processing circuitry configured to filter, amplify, and digitize the signal produced by the TIA.
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公开(公告)号：US10231713B2
公开(公告)日：2019-03-19
申请号：US15263939
申请日：2016-09-13
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Keith G. Fife
Abstract: A time gain compensation (TGC) circuit for an ultrasound device includes a first amplifier having an integrating capacitor and a control circuit configured to generate a TGC control signal that controls an integration time of the integrating capacitor, thereby controlling a gain of the first amplifier. The integration time is an amount of time an input signal is coupled to the first amplifier before the input signal is isolated from the first amplifier.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20180262200A1
公开(公告)日：2018-09-13
申请号：US15979883
申请日：2018-05-15
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Tyler S. Ralston
CPC classification number: H03M1/002 , A61B8/4483 , A61B8/4494 , A61B8/54 , H03M1/125 , H03M1/462
Abstract: An ultrasound device including an asynchronous successive approximation analog-to-digital converter and method are provided. The device includes at least one ultrasonic transducer, a plurality of asynchronous successive-approximation-register (SAR) analog-to-digital converters (ADC) coupled to the at least one ultrasonic transducer, at least one asynchronous SAR in the plurality having a sample and hold stage, a digital-to-analog converter (DAC), a comparator, and control circuitry, wherein a DAC update event following at least one bit conversion is synchronized to a corresponding DAC update event of at least one other ADC in the plurality of ADCs.
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17.发明授权公开(公告)号：US10014871B2
公开(公告)日：2018-07-03
申请号：US15605469
申请日：2017-05-25
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Tyler S. Ralston
CPC classification number: H03M1/002 , A61B8/4483 , A61B8/4494 , A61B8/54 , H03M1/125 , H03M1/462
Abstract: An ultrasound device including an asynchronous successive approximation analog-to-digital converter and method are provided. The device includes at least one ultrasonic transducer, a plurality of asynchronous successive-approximation-register (SAR) analog-to-digital converters (ADC) coupled to the at least one ultrasonic transducer, at least one asynchronous SAR in the plurality having a sample and hold stage, a digital-to-analog converter (DAC), a comparator, and control circuitry, wherein a DAC update event following at least one bit conversion is synchronized to a corresponding DAC update event of at least one other ADC in the plurality of ADCs.
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公开(公告)号：US20170285152A1
公开(公告)日：2017-10-05
申请号：US15087970
申请日：2016-03-31
Applicant: Butterfly Network, Inc.
Inventor： Liewei Bao , Kailiang Chen , Tyler S. Ralston , Nevada J. Sanchez
IPC: G01S7/524
CPC classification number: G01S7/524 , G01S7/52034
Abstract: Circuitry for ultrasound devices is described. A multi-level pulser is described, which can support time-domain and spatial apodization. The multi-level pulser may be controlled through a software-defined waveform generator. In response to the execution of a computer code, the waveform generator may access master segments from a memory, and generate a stream of packets directed to pulsing circuits. The stream of packets may be serialized. A plurality of decoding circuits may modulate the streams of packets to obtain spatial apodization.
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19.发明申请公开(公告)号：US20170163276A1
公开(公告)日：2017-06-08
申请号：US14957418
申请日：2015-12-02
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Tyler S. Ralston
CPC classification number: H03M1/002 , A61B8/4483 , A61B8/4494 , A61B8/54 , H03M1/125 , H03M1/462
Abstract: An ultrasound device including an asynchronous successive approximation analog-to-digital converter and method are provided. The device includes at least one ultrasonic transducer, a plurality of asynchronous successive-approximation-register (SAR) analog-to-digital converters (ADC) coupled to the at least one ultrasonic transducer, at least one asynchronous SAR in the plurality having a sample and hold stage, a digital-to-analog converter (DAC), a comparator, and control circuitry, wherein a DAC update event following at least one bit conversion is synchronized to a corresponding DAC update event of at least one other ADC in the plurality of ADCs.
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公开(公告)号：US09473136B1
公开(公告)日：2016-10-18
申请号：US14957398
申请日：2015-12-02
Applicant: Butterfly Network, Inc.
Inventor： Kailiang Chen , Tyler S. Ralston
IPC: A61N7/02 , H03K17/687 , H03K19/0185
CPC classification number: H03K17/6871 , A61N7/02 , A61N2007/0078 , B06B1/0207 , B06B2201/76 , H03K19/018507
Abstract: Apparatus and methods are provided directed to a device, including at least one ultrasonic transducer, a level shifter coupled to the at least one ultrasonic transducer, the level shifter including an input terminal configured to receive an input voltage, an output terminal configured to provide an output voltage level-shifted from the input voltage, a capacitor coupled between the input terminal and the output terminal, and a diode coupled in reverse-biased configuration between an input to an active high voltage element and a first voltage of a high voltage power supply.
Abstract translation: 提供了一种设备和方法，其包括至少一个超声换能器，耦合到所述至少一个超声换能器的电平移位器，所述电平移位器包括被配置为接收输入电压的输入端子，所述输出端子被配置为提供 从输入电压移位的输出电压电平，耦合在输入端子和输出端子之间的电容器，以及以反向偏置配置耦合的二极管，在输入到有源高电压元件和高压电源的第一电压之间 。
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