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公开(公告)号：US11863133B2
公开(公告)日：2024-01-02
申请号：US17331538
申请日：2021-05-26
Applicant: BFLY OPERATIONS, INC.
Inventor： Kailiang Chen , Keith G. Fife , Nevada J. Sanchez , Andrew J. Casper , Tyler S. Ralston
CPC classification number: H03F3/16 , A61B5/6801 , A61B8/4444 , G01S7/52025 , H03F1/086 , H03F3/45183 , A61B8/5207 , H03F2200/408 , H03F2200/555 , H03F2203/45471 , H03F2203/45504 , H03F2203/45631 , H03F2203/45634 , H03F2203/45646 , H03F2203/45648 , H03F2203/45674 , H03F2203/45686 , H03F2203/45692 , H03F2203/45726
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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12.发明授权公开(公告)号：US11815492B2
公开(公告)日：2023-11-14
申请号：US17232100
申请日：2021-04-15
Applicant: BFLY Operations, Inc.
Inventor： Chao Chen , Youn-Jae Kook , Jihee Lee , Kailiang Chen , Leung Kin Chiu , Joseph Lutsky , Nevada J. Sanchez , Sebastian Schaetz , Hamid Soleimani
IPC: G01N29/24 , A61B8/00 , H03F1/32 , H03K5/24 , H03M3/00 , G01N29/30 , G01S7/52 , B06B1/02 , G01S15/89 , H03F3/45
CPC classification number: G01N29/2406 , A61B8/58 , G01N29/30 , G01S7/5205 , H03F1/3211 , H03F3/45475 , H03K5/24 , H03M3/458 , B06B1/0292 , G01N2291/02475 , G01S15/8915 , H03F2200/129 , H03F2203/45116
Abstract: Aspects of the technology described herein relate to built-in self-testing (BIST) of circuitry (e.g., a pulser or receive circuitry) and/or transducers in an ultrasound device. A BIST circuit may include a transconductance amplifier coupled between a pulser and receive circuitry, a capacitor network coupled between a pulser and receive circuitry, and/or a current source couplable to the input terminal of receive circuitry to which a transducer is also couplable. The collapse voltages of transducers may be characterized using BIST circuitry, and a bias voltage may be applied to the membranes of the transducers based at least in part on their collapse voltages. The capacitances of transducers may also be measured using BIST circuitry and a notification may be generated based on the sets of measurements.
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公开(公告)号：US11573309B2
公开(公告)日：2023-02-07
申请号：US17545954
申请日：2021-12-08
Applicant: BFLY Operations, Inc.
Inventor： Kailiang Chen , Tyler S. Ralston
Abstract: An ultrasound device, including a profile generator, an encoder configured to receive a profile signal from the profile generator, and an attenuator configured to receive a signal representing an output of an ultrasound sensor and coupled to the encoder to receive a control signal from the encoder, the attenuator including a plurality of attenuator stages, the attenuator configured to produce an output signal that is an attenuated version of the input signal.
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公开(公告)号：US11545946B2
公开(公告)日：2023-01-03
申请号：US17200675
申请日：2021-03-12
Applicant: BFLY Operations, Inc.
Inventor： Amandeep Singh , Kailiang Chen , Tyler S. Ralston
IPC: H03F3/45 , H03M1/12 , B06B1/02 , G01S15/89 , G01N29/44 , G01S7/523 , G01H17/00 , G01S7/526 , G01N29/36 , G01N29/24 , H03F3/30 , G01S7/52
Abstract: An ultrasound circuit comprising a trans-impedance amplifier (TIA) with built-in time gain compensation functionality 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 is, in some cases, followed by further analog and digital processing circuitry.
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公开(公告)号：US11350911B2
公开(公告)日：2022-06-07
申请号：US16513677
申请日：2019-07-16
Applicant: BFLY Operations, 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
公开(公告)号：US11294044B2
公开(公告)日：2022-04-05
申请号：US16109457
申请日：2018-08-22
Applicant: BFLY Operations, Inc.
Inventor： Kailiang Chen , Tyler S. Ralston , Keith G. Fife
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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公开(公告)号：US11154279B2
公开(公告)日：2021-10-26
申请号：US15087962
申请日：2016-03-31
Applicant: BFLY Operations, Inc.
Inventor： Liewei Bao , Kailiang Chen , Tyler S. Ralston , Nevada J. Sanchez
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：US12207972B2
公开(公告)日：2025-01-28
申请号：US17868591
申请日：2022-07-19
Applicant: BFLY Operations, Inc.
Inventor： Sewook Hwang , Jungwook Yang , Kailiang Chen , Nevada J. Sanchez
Abstract: Ultrasound devices are disclosed. The ultrasound devices have an elevational dimension. Different percentages of the aperture of the ultrasound device corresponding to different percentages of the elevational dimension are utilized in different applications. The resolution of imagine may be adjusted in connection with usage of different percentages of the aperture.
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公开(公告)号：US11808899B2
公开(公告)日：2023-11-07
申请号：US17548370
申请日：2021-12-10
Applicant: BFLY Operations, Inc.
Inventor： Kailiang Chen , Keith G. Fife , Tyler S. Ralston , Nevada J. Sanchez , Andrew J. Casper
CPC classification number: G01S7/5273 , G01S7/5208 , G01S7/52026 , B06B1/0292 , G01S15/8959 , G01S15/8979
Abstract: Methods and apparatus are described for implementing a coding scheme on ultrasound signals received by a plurality of ultrasonic transducers. The coding, and subsequent decoding, may allow for multiple ultrasonic transducers to be operated in a receive mode simultaneously while still differentiating the contribution of the individual ultrasonic transducers. Improved signal characteristics may result, including improved signal-to-noise ratio (SNR).
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公开(公告)号：US11650301B2
公开(公告)日：2023-05-16
申请号：US17088477
申请日：2020-11-03
Applicant: BFLY Operations, Inc.
Inventor： Liewei Bao , Kailiang Chen , Tyler S. Ralston , Nevada J. Sanchez
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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