-
公开(公告)号：US11480674B2
公开(公告)日：2022-10-25
申请号：US16516303
申请日：2019-07-19
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Changhong Hu , Steven Russell Freeman
Abstract: A digital transmit beamformer for an ultrasound system has a waveform sample memory which stores sequences of samples of different pulse transmit waveforms of differing pulse widths. The memory is shared by a plurality of transmit channels, each of which can access its own selected sample sequence, independent of the selections by other channels. Waveform sample readout by the channels occurs substantially simultaneously during a transmit event, producing a transmit beam from a transmit aperture with different pulse waveforms applied to different elements of the transmit aperture. Higher energy waveforms with wider pulse widths are applied to central elements of the aperture and lower energy waveforms with narrower pulse widths are applied to lateral elements of the aperture to produce an apodized transmit beam.
-
公开(公告)号：US11249188B2
公开(公告)日：2022-02-15
申请号：US16065851
申请日：2016-12-28
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman
Abstract: Systems and methods for filtering an analog waveform before it is sampled by an analog-to-digital converter (ADC) in an ultrasound system are provided. The waveform can be filtered by delaying the same waveform by two different time delays and combining the delayed waveforms to effectively cancel out the fundamental components, thereby providing more sensitive detection of harmonic components in received echo signals. This filtering approach leverages an architecture that can also be used for multiline beamforming to perform the temporal filtering, in which a single acoustic signal can be read out of the ARAM twice, separated by time, taking advantage of the fact that the ARAM allows for non-destructive read operations.
-
公开(公告)号：US11054509B2
公开(公告)日：2021-07-06
申请号：US15546020
申请日：2016-01-18
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman , Michael Thomas McMillan
Abstract: Microbeamformers coupled to groups of array elements which partially beamform groups of elements for the formation of multiple receive lines are provided. In the microbeamformers, a delay line can be configured to output multiple signal streams that can be delayed by different amounts to support multiline receive in a microbeamformer. A read process during beamforming is not destructive, thereby allowing multiline receive beams to be generated from a single delay line.
-
公开(公告)号：US20200182989A1
公开(公告)日：2020-06-11
申请号：US16321941
申请日：2017-08-03
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman , Truong Huy Nguyen , Manfred Bartz , Jason Thanh Nguyen , Timothy Savord , Scott Owen Schweizer
Abstract: Front-end circuitry for an ultrasound system comprises a beamformer FPGA integrated circuit, transmit ICs with both pulse transmitters and linear waveform transmitters and T/R switches, transmit control and receiver ICs, and analog-to-digital converter (ADC) ICs. Only the transmit ICs require high voltages, and the transmit/receive switches are integrated in the transmit ICs, isolating the receiver ICs from high voltages. The transmitters can be trimmed to adjust the pulse rise and fall rates, enabling the transmission of pulses with low harmonic frequency content and thus better harmonic images.
-
公开(公告)号：US20200025920A1
公开(公告)日：2020-01-23
申请号：US16516303
申请日：2019-07-19
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Changhong Hu , Steven Russell Freeman
Abstract: A digital transmit beamformer for an ultrasound system has a waveform sample memory which stores sequences of samples of different pulse transmit waveforms of differing pulse widths. The memory is shared by a plurality of transmit channels, each of which can access its own selected sample sequence, independent of the selections by other channels. Waveform sample readout by the channels occurs substantially simultaneously during a transmit event, producing a transmit beam from a transmit aperture with different pulse waveforms applied to different elements of the transmit aperture. Higher energy waveforms with wider pulse widths are applied to central elements of the aperture and lower energy waveforms with narrower pulse widths are applied to lateral elements of the aperture to produce an apodized transmit beam.
-
Patent Agency Ranking
公开(公告)号：US20190223831A1
公开(公告)日：2019-07-25
申请号：US16306963
申请日：2017-06-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman
Abstract: A microconvex-linear ultrasound probe is used to image the insertion of a needle into a subject with a microconvex portion of a transducer array of the probe, then image penetration of the needle toward target anatomy with a linear portion of the transducer array by rotation of the probe against the subject. Ultrasound images produced by the probe are consistently displayed by control of a scan converter with an orientation signal. The orientation signal results from the processing of accelerometer signals from the probe, the identification of a portion of the transducer array which is in acoustic contact with the subject, and/or the identification or tracking of a feature in the ultrasound images such as the target anatomy.
-
公开(公告)号：US11846706B2
公开(公告)日：2023-12-19
申请号：US17579888
申请日：2022-01-20
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman
CPC classification number: G01S15/8927 , G01S7/52026 , G01S7/52038 , G01S7/52095 , G01S7/5208 , G01S7/52033
Abstract: Systems and methods for processing an analog waveform before it is sampled by an analog-to-digital converter (ADC) for the purpose of multiline beamforming in an ultrasound system are provided. The multiline beamforming is enabled by delaying the same waveform by two different time delays and by re-combining the delayed waveforms. This approach leverages an architecture that can also be used for temporal filtering, in which a single acoustic signal can be read out of the ARAM twice, separated by time, taking advantage of the fact that the ARAM allows for non-destructive read operations.
-
公开(公告)号：US20220381890A1
公开(公告)日：2022-12-01
申请号：US17883775
申请日：2022-08-09
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman , Scott Owen Schweizer , Timothy Savord , Jason Thanh Nguyen , Manfred Uwe Bartz , Truong Nguyen
Abstract: Front-end circuitry for an ultrasound system comprises a beamformer FPGA integrated circuit, transmit ICs with both pulse transmitters and linear waveform transmitters and T/R switches, transmit control and receiver ICs, and analog-to-digital converter (ADC) ICs. Only the transmit ICs require high voltages, and the transmit/receive switches are integrated in the transmit ICs, isolating the receiver ICs from high voltages. The transmitters can be trimmed to adjust the pulse rise and fall rates, enabling the transmission of pulses with low harmonic frequency content and thus better harmonic images.
-
公开(公告)号：US20220137211A1
公开(公告)日：2022-05-05
申请号：US17579888
申请日：2022-01-20
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman
Abstract: Systems and methods for processing an analog waveform before it is sampled by an analog-to-digital converter (ADC) for the purpose of multiline beamforming in an ultrasound system are provided. The multiline beamforming is enabled by delaying the same waveform by two different time delays and by re-combining the delayed waveforms. This approach leverages an architecture that can also be used for temporal filtering, in which a single acoustic signal can be read out of the ARAM twice, separated by time, taking advantage of the fact that the ARAM allows for non-destructive read operations.
-
10.发明申请公开(公告)号：US20190167235A1
公开(公告)日：2019-06-06
申请号：US16321201
申请日：2017-07-26
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Steven Russell Freeman , Truong Huy Nguyen , Manfred Bartz , Jason Thanh Nguyen , Timothy Savord , Scott Owen Schweizer
Abstract: Front-end circuitry for an ultrasound system is described which comprises a beamformer FPGA integrated circuit, transmit ICs with both pulse transmitters and linear waveform transmitters, transmit control and receiver ICs, and analog-to-digital converter (ADC) ICs. Waveform data for both the linear and pulser transmitters is stored in the transmit control and receiver ICs, saving pins on the FPGA, which is the conventional source of this data. The ADCs couple digital echo data to the FPGA for beamforming over serial bus lines, saving additional FPGA pins over a conventional parallel data arrangement. The inclusion of both pulser and linear waveform transmit capabilities in the transmit ICs enables the use of both types of transmitters in the formation of a multi-mode image, such as use of the pulsers for Doppler beams and linear transmitters for B mode beams in the formation of a colorflow image.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.013 seconds)
