公开(公告)号：US09933516B2

公开(公告)日：2018-04-03

申请号：US15288324

申请日：2016-10-07

Applicant: Butterfly Network, Inc.

Inventor： Kailiang Chen ,  Tyler S. Ralston

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

CPC classification number: G01S7/524 ,  A61B8/4483 ,  A61B8/54 ,  G01S7/5202 ,  G01S7/5208 ,  G01S7/52096 ,  G01S7/521 ,  H03K19/017545

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.

公开(公告)号：US20170281138A1

公开(公告)日：2017-10-05

申请号：US15087962

申请日：2016-03-31

Applicant: Butterfly Network, Inc.

Inventor： Liewei Bao ,  Kailiang Chen ,  Tyler S. Ralston ,  Nevada J. Sanchez

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.

公开(公告)号：US09778348B1

公开(公告)日：2017-10-03

申请号：US15087943

申请日：2016-03-31

Applicant: Butterfly Network, Inc.

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

IPC: G01S7/00 ,  G01S7/521 ,  H03K17/687

CPC classification number: G01S7/521 ,  G01S7/52017 ,  G01S7/5202 ,  G01S7/52047 ,  G01S7/5208 ,  G01S15/8915 ,  H03K17/6874

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.

公开(公告)号：US20170160239A1

公开(公告)日：2017-06-08

申请号：US14957443

申请日：2015-12-02

Applicant: Butterfly Network, Inc.

Inventor： Kailiang Chen ,  Tyler S. Ralston

IPC: G01N29/11

CPC classification number: G01N29/11 ,  G01N29/0654 ,  G01N29/44 ,  G01N2291/015 ,  G01N2291/02475

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.