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公开(公告)号：AU2017240665B2
公开(公告)日：2022-01-06
申请号：AU2017240665
申请日：2017-03-31
Applicant: BUTTERFLY NETWORK INC
Inventor： CHEN KAILIANG , BAO LIEWEI , RALSTON TYLER S , SANCHEZ NEVADA J
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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公开(公告)号：AU2017240056B2
公开(公告)日：2022-01-06
申请号：AU2017240056
申请日：2017-03-31
Applicant: BUTTERFLY NETWORK INC
Inventor： BAO LIEWEI , CHEN KAILIANG , RALSTON TYLER S , SANCHEZ NEVADA J
IPC: A61B8/00
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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公开(公告)号：AU2019288152A1
公开(公告)日：2021-01-07
申请号：AU2019288152
申请日：2019-06-18
Applicant: BUTTERFLY NETWORK INC
Inventor： CHEN CHAO , CHEN KAILIANG , CHIU LEUNG KIN , KOOK YOUN-JAE , FIFE KEITH G
Abstract: Aspects of technology described herein relate to ultrasound apparatuses including capacitive micromachines ultrasonic transducers (CMUTs) that are directly electrically coupled to delta-sigma analog-to-digital converters (ADCs). The apparatus may lack an amplifier or multiplexer between each CMUT and delta-sigma ADC. The apparatus may include between 100 and 20,000 CMUTs and between 100 and 20,000 delta-sigma ADCs, each of the CMUTs directly electrically coupled to one of the delta-sigma ADCs. The CMUTs and the delta-sigma ADCs may be monolithically integrated on a single substrate. The delta-sigma ADCs may lack an integrator distinct from the CMUT. An internal capacitance of the CMUT may serve as an integrator for the delta-sigma ADC.
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4.发明专利
公开(公告)号：CA3005680C
公开(公告)日：2020-12-15
申请号：CA3005680
申请日：2016-12-01
Applicant: BUTTERFLY NETWORK INC
Inventor： CHEN KAILIANG , RALSTON TYLER S
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：AU2018330436A1
公开(公告)日：2020-02-06
申请号：AU2018330436
申请日：2018-09-06
Applicant: BUTTERFLY NETWORK INC
Inventor： ROTHBERG JONATHAN M , FERGUS GREGG , FIFE KEITH G , RALSTON TYLER S , SANCHEZ NEVADA J , ZAHORIAN JAIME SCOTT , CHEN KAILIANG , MCNULTY CHRISTOPHER THOMAS
Abstract: Aspects of the technology described herein relate to an apparatus including an ultrasound-on-a-chip device configured to be bound to a user's wrist. The ultrasound-on-a-chip device may include a two-dimensional array of ultrasonic transducers. The transducers may be capacitive micromachined ultrasonic transducers (CMUTs) and may be configured to emit ultrasound waves having a frequency between approximately 5-20 MHz. A coupling strip may be coupled to the ultrasound-on-a-chip device to reduce the air gap between the ultrasound-on-a-chip device and the user's wrist. The ultrasound-on-a-chip device may be waterproof and may be able to perform both transverse and longitudinal ultrasound scanning without being rotated. The ultrasound-on-a-chip device may be configured to calculate pulse wave velocity through a blood vessel in a user's wrist.
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Patent Agency Ranking
公开(公告)号：AU2018289344A1
公开(公告)日：2019-12-19
申请号：AU2018289344
申请日：2018-06-19
Applicant: BUTTERFLY NETWORK INC
Inventor： SINGH AMANDEEP , CHEN KAILIANG , RALSTON TYLER S
Abstract: An ultrasound device is describe in which analog ultrasonic transducer output signal are directly converted to digital signals. The ultrasound device includes microfabricated ultrasonic transducers directly coupled to a sigma delta analog-to-digital converter in some instances. The direct digital conversion may allow for omission of undesirable analog processing stages in the ultrasound circuitry chain. In some situations, the ADC may be integrated on the same substrate as the ultrasound transducer.
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公开(公告)号：AU2017240665A1
公开(公告)日：2018-10-11
申请号：AU2017240665
申请日：2017-03-31
Applicant: BUTTERFLY NETWORK INC
Inventor： BAO LIEWEI , CHEN KAILIANG , RALSTON TYLER S , SANCHEZ NEVADA J
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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公开(公告)号：CA3032962A1
公开(公告)日：2018-03-22
申请号：CA3032962
申请日：2017-08-29
Applicant: BUTTERFLY NETWORK INC
Inventor： CHEN KAILIANG , FIFE KEITH G
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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公开(公告)号：CA3018870A1
公开(公告)日：2017-10-05
申请号：CA3018870
申请日：2017-03-31
Applicant: BUTTERFLY NETWORK INC
Inventor： BAO LIEWEI , CHEN KAILIANG , RALSTON TYLER S , SANCHEZ NEVADA J
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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公开(公告)号：AU2017240040B2
公开(公告)日：2021-04-08
申请号：AU2017240040
申请日：2017-03-31
Applicant: BUTTERFLY NETWORK INC
Inventor： CHEN KAILIANG , RALSTON TYLER S , FIFE KEITH G
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.
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