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公开(公告)号：US20190298309A1
公开(公告)日：2019-10-03
申请号：US16365775
申请日：2019-03-27
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Neil Owen , Changhong Hu
Abstract: An ultrasound system includes a transducer array having three or more rows of transducer elements extending in the azimuth dimension and located adjacent to each other in the elevation dimension. The rows have different mechanical foci in the elevation dimension, with an inner row elevationally focused in the near field and outer rows elevationally focused in the far field. When the user is imaging a subject in the near field, the system beamformer transmits with the inner row with a near field elevation focus. When imaging in the far field a plurality of rows elevationally focused in the far field are used for transmission. When the user is imaging in the mid-range, the beamformer uses both the inner row and the plurality of outer rows to provide an extended mid-range elevation focus.
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公开(公告)号：US20240164847A1
公开(公告)日：2024-05-23
申请号：US18426712
申请日：2024-01-30
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shannon Renee Fox , Changhong Hu , Kyong Chang , James Robertson Jago , Thanasis Loupas
CPC classification number: A61B34/20 , A61B8/0841 , A61B8/4488 , A61B8/463 , A61B2034/2063
Abstract: An ultrasound imaging system for needle insertion guidance uses a curved array transducer to scan an image field with unsteered beams as a needle is inserted into the image field. Due to differences in the angle of incidence between the radially directed beams and the needle, echoes will return most strongly from only a section of the needle. This section is identified in an image, and the angle of incidence producing the strongest returns is identified. Beams with this optimal angle of incidence are then steered in parallel from the curved array transducer to produce the best needle image. The steep steering angles of some of the steered beams can give rise to side lobe clutter artifacts, which can be identified and removed from the image data using dual apodization processing of the image data.
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公开(公告)号：US20210038320A1
公开(公告)日：2021-02-11
申请号：US16963859
申请日：2019-01-15
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shannon Renee Fox , Changhong Hu , Kyong Chang , James Robertson Jago , Thanasis Loupas
Abstract: An ultrasound imaging system for needle insertion guidance uses a curved array transducer to scan an image field with unsteered beams as a needle is inserted into the image field. Due to differences in the angle of incidence between the radially directed beams and the needle, echoes will return most strongly from only a section of the needle. This section is identified in an image, and the angle of incidence producing the strongest returns is identified. Beams with this optimal angle of incidence are then steered in parallel from the curved array transducer to produce the best needle image. The steep steering angles of some of the steered beams can give rise to side lobe clutter artifacts, which can be identified and removed from the image data using dual apodization processing of the image data.
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公开(公告)号：US20220249064A1
公开(公告)日：2022-08-11
申请号：US17617374
申请日：2020-06-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sheng-Wen Huang , Changhong Hu , Francois Guy Gerard Marie Vignon , Jun Seob Shin , Unmin Bae , Neil Reid Owen
Abstract: Systems and methods for reducing speckle while maintaining frame rate are disclosed. Multiple sub-images associated with different receive angles are acquired for a single transmit/receive event at an observation angle. The sub-images are compounded to generate a final image with reduced speckle. In some examples, multiple sub-images from multiple transmit/receive events are compounded to generate the final image. The observation angle and/or the receive angles may vary between transmit/receive events in some examples.
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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.
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Patent Agency Ranking
公开(公告)号：US12201481B2
公开(公告)日：2025-01-21
申请号：US17617374
申请日：2020-06-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sheng-Wen Huang , Changhong Hu , Francois Guy Gerard Marie Vignon , Jun Seob Shin , Unmin Bae , Neil Reid Owen
Abstract: Systems and methods for reducing speckle while maintaining frame rate are disclosed. Multiple sub-images associated with different receive angles are acquired for a single transmit/receive event at an observation angle. The sub-images are compounded to generate a final image with reduced speckle. In some examples, multiple sub-images from multiple transmit/receive events are compounded to generate the final image. The observation angle and/or the receive angles may vary between transmit/receive events in some examples.
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公开(公告)号：US20240032897A1
公开(公告)日：2024-02-01
申请号：US18268642
申请日：2021-12-16
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Richard Anthony Sampson, II , Changhong Hu , Shubha Rao , Justus Daniel Smitchger , Daniel Schmiesing
IPC: A61B8/00
Abstract: An ultrasound system is configured to perform periodic self-testing of the system's hardware components. Results of the self-testing are stored on the ultrasound system in a data log, and periodically uploaded to a self-test database. The self-test database is sorted, then analyzed by engineers of the ultrasound system manufacturer to discern variances or trends in ultrasound system hardware performance or operation. As a result of the analysis, updated or improved self-test programs are developed by the system manufacturer and uploaded to and installed on ultrasound systems of the installed base of systems.
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公开(公告)号：US20220416910A1
公开(公告)日：2022-12-29
申请号：US17898782
申请日：2022-08-30
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Changhong Hu , Bernard Joseph Savord , Jeffrey Daniel Sherman
IPC: H04B11/00
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.
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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.
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公开(公告)号：US20210219952A1
公开(公告)日：2021-07-22
申请号：US17053945
申请日：2019-05-07
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sheng-Wen Huang , Changhong Hu , Douglas Robert Maxwell , David Hope Simpson , James Robertson Jago , Francois Guy Gerard Marie Vignon , Jun Seob Shin , Xiaowen Hu , Unmin Bae
Abstract: Systems, devices, and methods for ultrasonic imaging by sparse sampling are provided. In one embodiment, an ultrasound imaging system comprises an array of ultrasound transducer elements, electronic circuitry in communication with the array of ultrasound transducer elements and configured to select a first receive aperture of the array comprising a plurality of contiguous ultrasound transducer elements and at least one non-contiguous ultrasound transducer element, and a beamformer in communication with the electronic circuitry. Each ultrasound transducer element of the first receive aperture is configured to receive reflected ultrasound echoes and generate an electrical signal representative of imaging data. The beamformer is configured to receive the electrical signals generated by the first receive aperture and apply different weight to the electrical signals generated by the contiguous ultrasound transducer elements and the electrical signal generated by the at least one non-contiguous ultrasound transducer element.
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