公开(公告)号：US11536818B2

公开(公告)日：2022-12-27

申请号：US16910897

申请日：2020-06-24

Applicant: BFLY OPERATIONS, INC.

Inventor： Jungwook Yang ,  Daniel Rea McMahill ,  Kailiang Chen ,  Nevada J. Sanchez

IPC: H03M7/16 ,  G01S7/52 ,  A61B8/08 ,  A61B8/00

Abstract: Aspects of the technology described herein related to an ultrasound processing unit (UPU) including gray-coding circuitry configured to convert standard binary-coded digital ultrasound signals to gray-coded digital ultrasound signals and gray-decoding circuitry coupled to the gray-coding circuitry and configured to convert the gray-coded digital ultrasound signals to standard binary-coded digital ultrasound signals. The UPU may include an analog portion, a digital portion, and a data bus configured to route the gray-coded digital ultrasound signals from the analog portion to the digital portion subsequent to converting the standard binary-coded digital ultrasound signals to the gray-coded digital ultrasound signals. The analog portion may include multiple analog front-ends (AFEs), the gray-coding circuitry, and an analog-to-digital converter. The digital portion may include the gray-decoding circuitry. A data bus from one AFE may pass over another AFE.

公开(公告)号：US11921240B2

公开(公告)日：2024-03-05

申请号：US17025927

申请日：2020-09-18

Applicant: BFLY OPERATIONS, INC.

Inventor： Kailiang Chen ,  Daniel Rea McMahill ,  Joseph Lutsky ,  Keith G. Fife ,  Nevada J. Sanchez

IPC: G01S7/52

CPC classification number: G01S7/52025 ,  G01S7/52017 ,  G01S7/5202 ,  G01S7/52022 ,  G01S7/52085

Abstract: Circuitry for an ultrasound device is described. The ultrasound device may include a symmetric switch positioned between a pulser and an ultrasound transducer. The pulser may produce bipolar pulses. The symmetric switch may selectively isolate a receiver from the pulser and the ultrasound transducer during a transmit mode of the device, when the bipolar pulses are provided by the pulser to the ultrasound transducer for transmission, and may selectively permit the receiver to receive signals from the ultrasound transducer during a receive mode. The symmetric switch may be provided with a well switch to remove well capacitances in a signal path of the device.