公开(公告)号：US20230371922A1

公开(公告)日：2023-11-23

申请号：US17747398

申请日：2022-05-18

Applicant: Verasonics, Inc.

Inventor： Laurence C. Brasfield ,  John A. Flynn ,  Ronald E. Daigle

IPC: A61B8/00 ,  H02M1/32 ,  G01S7/524

CPC classification number: A61B8/44 ,  H02M1/32 ,  G01S7/524

Abstract: An ultrasound transceiver that overcomes many of the deficiencies of conventional ultrasound transceivers by providing the ability to transmit high power and high frequency arbitrary waveforms with low distortion and with the ability to monitor the transmit signals through the receiver during the transmit period, the transceiver circuit having a transducer element to emit an ultrasound signal and to receive a reflected ultrasound signal, a transformer circuit having a transformer with a secondary winding coupled to the transducer element and a primary winding, an H-Bridge transmit waveform circuit coupled to the primary winding of the transformer to generate a transmit waveform signal to the transducer element via the transformer, an FET clamp coupled to the secondary winding of the transformer, and a receiver circuit having an input coupled to the FET clamp.

公开(公告)号：US20180088220A1

公开(公告)日：2018-03-29

申请号：US15563387

申请日：2016-03-30

Applicant: VERASONICS, INC.

Inventor： John A. Flynn ,  Lauren S. Pflugrath

IPC: G01S7/52 ,  B06B1/02 ,  A61B8/00 ,  A61B8/14 ,  A61B8/08 ,  A61B8/06 ,  G01S15/89

CPC classification number: G01S7/52093 ,  A61B8/06 ,  A61B8/14 ,  A61B8/4483 ,  A61B8/485 ,  A61B8/488 ,  A61B8/5207 ,  A61B8/5276 ,  B06B1/0215 ,  B06B2201/76 ,  G01S7/5202 ,  G01S7/52077 ,  G01S15/8927 ,  G01S15/8959 ,  G01S15/8979 ,  G01S15/8997 ,  G10K11/346

Abstract: A method that includes transmitting coded waveforms simultaneously on multiple elements for several frames, constructing a first multi-input, single output (MISO) system from the codes to model transmit-receive paths, solving system and RF data observation by linear model theory, giving an IR set for the medium, and applying the estimates to a secondary MISO system, constructed by analogy to the first, but with pulses convenient for beamforming in the form of a focused set of single-cycle pulses for ideal focused reconstruction.

公开(公告)号：US12089991B2

公开(公告)日：2024-09-17

申请号：US17747398

申请日：2022-05-18

Applicant: Verasonics, Inc.

Inventor： Laurence C. Brasfield ,  John A. Flynn ,  Ronald E. Daigle

IPC: A61B8/00 ,  G01S7/52 ,  G01S7/524 ,  H02M1/32

CPC classification number: A61B8/44 ,  G01S7/52017 ,  G01S7/5202 ,  G01S7/524 ,  H02M1/32 ,  G01S7/5205

Abstract: An ultrasound transceiver that overcomes many of the deficiencies of conventional ultrasound transceivers by providing the ability to transmit high power and high frequency arbitrary waveforms with low distortion and with the ability to monitor the transmit signals through the receiver during the transmit period, the transceiver circuit having a transducer element to emit an ultrasound signal and to receive a reflected ultrasound signal, a transformer circuit having a transformer with a secondary winding coupled to the transducer element and a primary winding, an H-Bridge transmit waveform circuit coupled to the primary winding of the transformer to generate a transmit waveform signal to the transducer element via the transformer, an FET clamp coupled to the secondary winding of the transformer, and a receiver circuit having an input coupled to the FET clamp.

公开(公告)号：US11619730B2

公开(公告)日：2023-04-04

申请号：US15563387

申请日：2016-03-30

Applicant: VERASONICS, INC.

Inventor： John A. Flynn ,  Lauren S. Pflugrath

IPC: A61B8/14 ,  G01S7/52 ,  A61B8/06 ,  B06B1/02 ,  G01S15/89 ,  G10K11/34 ,  A61B8/00 ,  A61B8/08

Abstract: A method that includes transmitting coded waveforms simultaneously on multiple elements for several frames, constructing a first multi-input, single output (MISO) system from the codes to model transmit-receive paths, solving system and RF data observation by linear model theory, giving an IR set for the medium, and applying the estimates to a secondary MISO system, constructed by analogy to the first, but with pulses convenient for beamforming in the form of a focused set of single-cycle pulses for ideal focused reconstruction.

公开(公告)号：US10302750B2

公开(公告)日：2019-05-28

申请号：US14905434

申请日：2014-07-17

Applicant: Verasonics, Inc.

Inventor： John A. Flynn ,  Peter J. Kaczkowski ,  Brian J. Pflugrath ,  Lauren S. Pflugrath

IPC: G01S7/52 ,  B06B1/02 ,  G01S15/89

Abstract: A method and system for generating arbitrary ultrasonic waveforms using a tri-state transmitter. Three variants of the device are described to provide functionality in three usage scenarios.