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公开(公告)号：US20230022229A1
公开(公告)日：2023-01-26
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：US11388524B2
公开(公告)日：2022-07-12
申请号：US17114411
申请日：2020-12-07
Applicant: BFLY Operations, Inc.
Inventor： Joseph Lutsky , Nevada J. Sanchez , Kailiang Chen , Keith G. Fife , Tyler S. Ralston
Abstract: Aspects of the technology described herein relate to ultrasound circuits that employ a differential ultrasonic transducer element, such as a differential micromachined ultrasonic transducer (MUT) element. The differential ultrasonic transducer element may be coupled to an integrated circuit that is configured to operate the differential ultrasonic transducer element in one or more modes of operation, such as a differential receive mode, a differential transmit mode, a single-ended receive mode, and a single-ended transmit mode.
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公开(公告)号：US20220171041A1
公开(公告)日：2022-06-02
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
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：US20220171040A1
公开(公告)日：2022-06-02
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：US11169248B2
公开(公告)日：2021-11-09
申请号：US15934150
申请日：2018-03-23
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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Patent Agency Ranking
公开(公告)号：US12203894B2
公开(公告)日：2025-01-21
申请号：US18507509
申请日：2023-11-13
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 , B06B1/02 , G01N29/30 , G01S7/52 , G01S15/89 , H03F1/32 , H03F3/45 , H03K5/24 , H03M3/00
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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7.发明公开公开(公告)号：US20240159714A1
公开(公告)日：2024-05-16
申请号：US18507509
申请日：2023-11-13
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
CPC classification number: G01N29/2406 , A61B8/58 , G01N29/30 , G01S7/5205 , H03F1/3211 , H03F3/45475 , H03K5/24 , H03M3/458 , B06B1/0292
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：US20220079565A1
公开(公告)日：2022-03-17
申请号：US17483728
申请日：2021-09-23
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：US11275161B2
公开(公告)日：2022-03-15
申请号：US16178871
申请日：2018-11-02
Applicant: BFLY Operations, Inc.
Inventor： Kailiang Chen , Keith G. Fife , Tyler S. Ralston , Nevada J. Sanchez , Andrew J. Casper
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：US12231097B2
公开(公告)日：2025-02-18
申请号：US18389875
申请日：2023-12-20
Applicant: BFLY OPERATIONS, 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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