Patents by Inventor Sun-Yeob CHANG

Sun-Yeob CHANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11701093
    Abstract: An ultrasound imaging device and a clutter filtering method using the same are disclosed. The clutter filtering method using the ultrasound imaging device according to one embodiment includes obtaining ultrasound data from a field-of-view (FOV) of an object, generating decomposition data including common scale information by performing rank matrix decomposition once on all of the obtained ultrasound data, estimating local characteristic information by reflecting spatial information on each pixel to the common scale information, and extracting a blood flow signal by performing filtering on each pixel based on the estimated local characteristic information.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 18, 2023
    Assignee: ALPINION MEDICAL SYSTEMS CO., LTD.
    Inventor: Sun Yeob Chang
  • Publication number: 20200275914
    Abstract: An ultrasound imaging device and a clutter filtering method using the same are disclosed. The clutter filtering method using the ultrasound imaging device according to one embodiment includes obtaining ultrasound data from a field-of-view (FOV) of an object, generating decomposition data including common scale information by performing rank matrix decomposition once on all of the obtained ultrasound data, estimating local characteristic information by reflecting spatial information on each pixel to the common scale information, and extracting a blood flow signal by performing filtering on each pixel based on the estimated local characteristic information.
    Type: Application
    Filed: October 24, 2018
    Publication date: September 3, 2020
    Applicant: ALPINION MEDICAL SYSTEMS CO., LTD.
    Inventor: Sun Yeob CHANG
  • Patent number: 10420536
    Abstract: A software-based ultrasound imaging system is disclosed. According to some embodiments of the present disclosure, a method and an architecture for efficiently transmitting, processing, and storing channel data in the software-based ultrasound imaging system are provided.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: September 24, 2019
    Assignee: ALPINION MEDICAL SYSTEMS CO., LTD.
    Inventors: Sun-yeob Chang, Ja-woon Koo, Seung-pum Kang, Keonho Son
  • Patent number: 10342509
    Abstract: A beamforming device, an ultrasonic imaging device, and a beamforming method, which allow a simple spatial smoothing operation, are disclosed. A beamforming device according to an embodiment of the present invention comprises: a spatial smoothing unit for transforming a received signal into another space, using a transformation function configured by low frequency components, calculating a transformed signal by a spatial smoothing operation using a transformation function in a transformation space, and estimating an averaged spatial covariance matrix; a weighted value operation unit for operating a weighted value of the transformed signal from the averaged spatial covariance matrix which has been estimated by the spatial smoothing operation; and a synthesis unit for generating a beam signal, using the transformed signal and the weighted value of the transformed signal.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 9, 2019
    Assignees: ALPINION MEDICAL SYSTEMS CO., LTD., INDUSTRY ACADEMIC COOPERATION FOUNDATION, HALLYM UNIVERSITY
    Inventors: Sun-Yeob Chang, Moo-Ho Bae
  • Publication number: 20180085089
    Abstract: A beamforming device, an ultrasonic imaging device, and a beamforming method, which allow a simple spatial smoothing operation, are disclosed. A beamforming device according to an embodiment of the present invention comprises: a spatial smoothing unit for transforming a received signal into another space, using a transformation function configured by low frequency components, calculating a transformed signal by a spatial smoothing operation using a transformation function in a transformation space, and estimating an averaged spatial covariance matrix; a weighted value operation unit for operating a weighted value of the transformed signal from the averaged spatial covariance matrix which has been estimated by the spatial smoothing operation; and a synthesis unit for generating a beam signal, using the transformed signal and the weighted value of the transformed signal.
    Type: Application
    Filed: March 27, 2015
    Publication date: March 29, 2018
    Applicants: ALPINION MEDICAL SYSTEMS CO., LTD., INDUSTRY ACADEMIC COOPERATION FOUNDATION, HALLYM U NIVERSITY
    Inventors: Sun-Yeob CHANG, Moo-Ho BAE
  • Publication number: 20170030865
    Abstract: A method and an apparatus for processing data for an ultrasound image reconstruction are disclosed. In some embodiments, a method and an apparatus for processing data for reconstructing an ultrasound image are provided, which are capable of storing first frame data generated by a focused ultrasound in a realtime display mode and a parameter for the first frame data, and when a specific event is detected as occurring, and additionally storing second frame data generated by an unfocused ultrasound and a parameter for the second frame data, thus expanding the scope of application of the data for an image reconstruction and acquiring various formats of improved ultrasound images.
    Type: Application
    Filed: November 29, 2013
    Publication date: February 2, 2017
    Applicants: ALPINION MEDICAL SYSTEMS CO., LTD., ALPINION MEDICAL SYSTEMS CO., LTD.
    Inventors: Sun-yeob CHANG, Keonho SON, Hyunchul CHO, Young-seop LIM
  • Publication number: 20170023668
    Abstract: A method and an apparatus for performing a beamforming by using unfocused ultrasounds are disclosed. Some embodiments of the present disclosure provide a method and an apparatus for performing a beamforming, when processing an ultrasound image obtained by transmitting unfocused ultrasounds to a field-of-view and receiving reflection signals from the field-of-view, which include calculating transmission delay times taken by ultrasounds transmitted by transmit elements of a transducer to arrive at a receive focusing point, calculating reception delay times taken by reflection ultrasound signals reflected at the receive focusing point to arrive at receive elements of the transducer, and applying the calculations of the transmission delay times and the reception delay times to reception signals at the receive elements.
    Type: Application
    Filed: November 29, 2013
    Publication date: January 26, 2017
    Inventors: Sun-yeob CHANG, Keonho SON, Ja-woon KOO, Young-seop LIM
  • Publication number: 20170020487
    Abstract: A method and an apparatus for compounding ultrasound images are disclosed. A method and an apparatus for compounding ultrasound images are provided to compound frames generated based on reflection signals generated upon receiving reflected transmissions of focused ultrasounds and unfocused ultrasounds to a subject so as to prevent a decreased frame rate as well as moving artifacts from affecting the ultrasound imaging due to movements of the subject.
    Type: Application
    Filed: November 29, 2013
    Publication date: January 26, 2017
    Inventors: Sun-yeob CHANG, Keonho SON, Jonghoon KIM, Hyunchul CHO
  • Publication number: 20170000464
    Abstract: A software-based ultrasound imaging system is disclosed. According to some embodiments of the present disclosure, a method and an architecture for efficiently transmitting, processing, and storing channel data in the software-based ultrasound imaging system are provided.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 5, 2017
    Inventors: Sun-yeob CHANG, Ja-woon KOO, Seung-pum KANG, Keonho SON
  • Publication number: 20160310111
    Abstract: A method and an apparatus for adjusting an ultrasound image setting are are provided. A method and an apparatus for adjusting an ultrasound image setting provide an interface configured to apply or adjust an image parameter related to an ultrasound image such that a plurality of image parameters (for example, a frame rate, an image quality, and so on) related to the ultrasound image can be simultaneously adjusted by only one operation (a single input signal).
    Type: Application
    Filed: December 9, 2013
    Publication date: October 27, 2016
    Inventors: Hyunchul CHO, Seung-pum KANG, Sun-yeob CHANG, Keonho SON
  • Publication number: 20160074013
    Abstract: An image zoom method and an ultrasound medical apparatus are disclosed. An image zoom method that allows an entire image to be updated in real time in a zoom reference window in a write zoom system of two zoom systems (read zoom and write zoom) employed in an ultrasound medical apparatus, to increase diagnosis efficiency, and an ultrasound medical apparatus employing the image zoom method are provided.
    Type: Application
    Filed: April 30, 2013
    Publication date: March 17, 2016
    Inventors: Supyeong CHAE, Hyunchul CHO, Keonho SON, Sun-Yeob CHANG