Patents by Inventor Woo Youl Lee
Woo Youl Lee 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).
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Patent number: 10677901Abstract: Provided is an ultrasound diagnosis apparatus that may include a data acquisition unit that acquires ultrasound data based on received echo signals from an object; and a processor that may estimate a center frequency of the ultrasound data and, based on the center frequency, perform pulse compression on the ultrasound data to generate short signals from elongated signals.Type: GrantFiled: March 20, 2017Date of Patent: June 9, 2020Assignees: SAMSUNG MEDISON CO., LTD., SOGANG UNIVERSITY RESEARCH FOUNDATIONInventors: Woo-youl Lee, Yangmo Yoo, Jinbum Kang
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Patent number: 10514450Abstract: A beamformer for performing analog beamforming of ultrasound signals received from a plurality of transducer devices, the beamformer includes: first analog devices configured to output first ultrasound signals by delaying or transmitting the ultrasound signals based on a predetermined delay time; second analog devices configured to store first sub-ultrasound signals from among the first ultrasound signals, and to output the first sub-ultrasound signals depending on whether the first sub-ultrasound signals are repeatedly used; and a processor configured to control the delay time, and to perform the analog beamforming by summing the first ultrasound signals which correspond to the plurality of transducer devices and which are outputted depending on the delay time.Type: GrantFiled: September 28, 2016Date of Patent: December 24, 2019Assignees: SAMSUNG MEDISON CO., LTD., SOGANG UNIVERSITY RESEARCH FOUNDATIONInventors: Woo-youl Lee, Tae-kyong Song, Hyun-gil Kang, Ji-won Park
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Patent number: 10456115Abstract: An ultrasound system and a clutter filtering method thereof are provided. The clutter filtering method includes: transmitting an ultrasound signal to an object; receiving a reflection signal reflected from the object; performing a singular value decomposition (SVD) on a plurality of doppler signals constituting the reflection signal; dividing a representation of the object into a plurality of regions according to a result of performing the SVD; determining cutoff frequencies of the plurality of regions according to different methods; and performing clutter filtering on the plurality of regions by using the determined cutoff frequencies.Type: GrantFiled: April 22, 2014Date of Patent: October 29, 2019Assignees: SAMSUNG ELECTRONICS CO., LTD., Industry-University Cooperation Foundation Sogang UniversityInventors: Hyun-woo Koh, Yang-mo Yoo, Sun-mi Yeo, Woo-youl Lee, Young-tae Kim, Hwan Shim, Hyung-joon Lim
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Publication number: 20190209136Abstract: Provided are an ultrasonic imaging apparatus and a method of displaying an ultrasound image. The ultrasonic imaging apparatus may include: a processor configured to acquire a Doppler signal corresponding to a sample volume, divide the Doppler signal into a plurality of sub-Doppler signals, generate a plurality of spectral Doppler signals by performing spectral analysis on each of the plurality of sub-Doppler signals, and generate, from the plurality of spectral Doppler signals, a spectral Doppler signal corresponding to the sample volume; and a display displaying the spectral Doppler signal corresponding to the sample volume.Type: ApplicationFiled: August 24, 2017Publication date: July 11, 2019Applicants: SAMSUNG MEDISON CO., LTD., SOGANG UNIVERSITY RESEARCH FOUNDATIONInventors: Woo-youl LEE, Eun-ho YANG, Gae-young CHO, Jin-bum KANG, Yang-mo YOO
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Patent number: 10321893Abstract: Provided is a method of generating an ultrasound image corresponding to a cross-section of interest, which is performed by an ultrasound imaging apparatus. Exemplary embodiments include a method of generating an ultrasound image corresponding to a cross-section of interest of an object by storing ultrasound echo signals respectively corresponding to a plurality of frames that constitute a three-dimensional (3D) ultrasound image of the object, performing beamforming on a focal point on the cross-section of interest of the object, and generating beam focused data for the focal point.Type: GrantFiled: July 10, 2015Date of Patent: June 18, 2019Assignee: SAMSUNG MEDISON CO., LTD.Inventors: Woo-youl Lee, Gil-ju Jin
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Publication number: 20180185011Abstract: Provided is an ultrasound imaging apparatus including a probe configured to transmit an ultrasound signal to an object along a first path and receive an echo signal reflected from the object; and a processor configured to generate a first ultrasound image representing the object, detect at least one region having low image quality among regions in the generated first ultrasound image according to a predetermined criterion, control the ultrasound signal to be transmitted along a second path by focusing the ultrasound signal at a focal point within a predetermined region of the object corresponding to the detected at least one region, and generate a second ultrasound image representing the object based on an echo signal received in response to the ultrasound signal transmitted to the object along the second path.Type: ApplicationFiled: June 9, 2016Publication date: July 5, 2018Applicant: SAMSUNG MEDISON CO., LTD.Inventors: Christopher M.W. DAFT, Hyoung-jin KIM, Kang-sik KIM, Woo-youl LEE
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Publication number: 20170293023Abstract: Provided is an ultrasound diagnosis apparatus that may include a data acquisition unit that acquires ultrasound data based on received echo signals from an object; and a processor that may estimate a center frequency of the ultrasound data and, based on the center frequency, perform pulse compression on the ultrasound data to generate short signals from elongated signals.Type: ApplicationFiled: March 20, 2017Publication date: October 12, 2017Applicants: SAMSUNG MEDISON CO., LTD., SOGANG UNIVERSITY RESEARCH FOUNDATIONInventors: Woo-youl LEE, Yangmo YOO, Jinbum KANG
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Publication number: 20170209122Abstract: The present disclosure provides a beamforming apparatus, ultrasonic probe having the same, ultrasonic diagnostic apparatus, and controlling method thereof, which increases the quality of an image in a region of interest by adjusting time delays of analog and digital beamformers in a two dimensional (2D) transducer of the ultrasonic diagnostic apparatus. In accordance with an aspect of the present disclosure, a beamforming apparatus for beamforming ultrasound received through a two dimensional (2D) arrayed ultrasonic transducer is provided.Type: ApplicationFiled: September 8, 2016Publication date: July 27, 2017Inventors: Woo Youl LEE, Tae-Kyong SONG, Hyun Gil KANG, Ji Won PARK
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Publication number: 20170090023Abstract: A beamformer for performing analog beamforming of ultrasound signals received from a plurality of transducer devices, the beamformer includes: first analog devices configured to output first ultrasound signals by delaying or transmitting the ultrasound signals based on a predetermined delay time; second analog devices configured to store first sub-ultrasound signals from among the first ultrasound signals, and to output the first sub-ultrasound signals depending on whether the first sub-ultrasound signals are repeatedly used; and a processor configured to control the delay time, and to perform the analog beamforming by summing the first ultrasound signals which correspond to the plurality of transducer devices and which are outputted depending on the delay time.Type: ApplicationFiled: September 28, 2016Publication date: March 30, 2017Inventors: Woo-youl LEE, Tae-kyong SONG, Hyun-gil KANG, Ji-won PARK
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Patent number: 9322902Abstract: A BC-mode image with an improved frame rate in an ultrasound system is formed. A transmit/receive unit forms first and second receive signals responsive to first and second control signals. An image processing unit is configured to form a B-mode image and a C-mode image based the first and second receive signals and to combine them to form a BC-mode image. The control signal generates a third control signal for a B-mode scan along scan lines, which are not within the color box to form third receive signals. The control unit repeatedly generates the second and third control signals. The image processing unit is further operable to form a B-mode image based on the third receive signals and the second signals.Type: GrantFiled: April 3, 2012Date of Patent: April 26, 2016Assignee: SAMSUNG MEDISON CO., LTD.Inventors: Chi Young Ahn, Woo Youl Lee
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Patent number: 9297890Abstract: A method for generating a Doppler image by using a ultrasound system, the method including: transmitting a ultrasound signal to an object and receiving a response signal reflected from the object; converting the response signal into a plurality of in-phase/quadrature-phase (I/Q) signals having different frequencies; and generating a Doppler image of the object based on information about a speed of the object obtained from the plurality of I/Q signals.Type: GrantFiled: March 9, 2012Date of Patent: March 29, 2016Assignee: Samsung Medison Co., Ltd.Inventor: Woo-youl Lee
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Publication number: 20160081661Abstract: Provided is a method of generating an ultrasound image corresponding to a cross-section of interest, which is performed by an ultrasound imaging apparatus. Exemplary embodiments include a method of generating an ultrasound image corresponding to a cross-section of interest of an object by storing ultrasound echo signals respectively corresponding to a plurality of frames that constitute a three-dimensional (3D) ultrasound image of the object, performing beamforming on a focal point on the cross-section of interest of the object, and generating beam focused data for the focal point.Type: ApplicationFiled: July 10, 2015Publication date: March 24, 2016Applicant: SAMSUNG MEDISON CO., LTD.Inventors: Woo-youl LEE, Gil-ju JIN
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Publication number: 20140316274Abstract: An ultrasound system and a clutter filtering method thereof are provided. The clutter filtering method includes: transmitting an ultrasound signal to an object; receiving a reflection signal reflected from the object; performing a singular value decomposition (SVD) on a plurality of doppler signals constituting the reflection signal; dividing a representation of the object into a plurality of regions according to a result of performing the SVD; determining cutoff frequencies of the plurality of regions according to different methods; and performing clutter filtering on the plurality of regions by using the determined cutoff frequencies.Type: ApplicationFiled: April 22, 2014Publication date: October 23, 2014Applicants: SAMSUNG ELECTRONICS CO., LTD., Industry-University Cooperation Foundation Sogang UniversityInventors: Hyun-woo KOH, Yang-mo YOO, Sun-mi YEO, Woo-youl LEE, Young-tae KIM, Hwan SHIM, Hyung-joon LIM
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Publication number: 20120265073Abstract: A BC-mode image with an improved frame rate in an ultrasound system is formed. A transmit/receive unit forms first and second receive signals responsive to first and second control signals. An image processing unit is configured to form a B-mode image and a C-mode image based the first and second receive signals and to combine them to form a BC-mode image. The control signal generates a third control signal for a B-mode scan along scan lines, which are not within the color box to form third receive signals. The control unit repeatedly generates the second and third control signals. The image processing unit is further operable to form a B-mode image based on the third receive signals and the second signals.Type: ApplicationFiled: April 3, 2012Publication date: October 18, 2012Applicant: Medison Co., Ltd.Inventors: Chi Young AHN, Woo Youl LEE
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Publication number: 20120232399Abstract: A method for generating a Doppler image by using a ultrasound system, the method including: transmitting a ultrasound signal to an object and receiving a response signal reflected from the object; converting the response signal into a plurality of in-phase/quadrature-phase (I/Q) signals having different frequencies; and generating a Doppler image of the object based on information about a speed of the object obtained from the plurality of I/Q signals.Type: ApplicationFiled: March 9, 2012Publication date: September 13, 2012Inventor: Woo-youl LEE
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Patent number: 8216141Abstract: A BC-mode image with an improved frame rate in an ultrasound system is formed. A transmit/receive unit forms first and second receive signals responsive to first and second control signals. An image processing unit is configured to form a B-mode image and a C-mode image based the first and second receive signals and to combine them to form a BC-mode image. The control signal generates a third control signal for a B-mode scan along scan lines, which are not within the color box to form third receive signals. The control unit repeatedly generates the second and third control signals. The image processing unit is further operable to form a B-mode image based on the third receive signals and the second signals.Type: GrantFiled: November 13, 2008Date of Patent: July 10, 2012Assignee: Medison Co., Ltd.Inventors: Chi Young Ahn, Woo Youl Lee
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Publication number: 20090124905Abstract: The present invention relates to an ultrasound system. A control generates a first control signal for a B-mode scan and a second control signal for a C-mode scan. A transmit/receive unit transmits ultrasound signals along a plurality of scan lines set in a target object and form receive signals based on the ultrasound echo signals reflected from the target object. The receive signals include first receive signals corresponding to the scan lines and second receive signals corresponding to a portion of scan lines within the color box. The image processing unit forms a B-mode image and a C-mode image based on the first and second receive signals, and combine the B-mode image with the C-mode image to form a BC-mode image.Type: ApplicationFiled: November 13, 2008Publication date: May 14, 2009Inventors: Chi Young Ahn, Woo Youl Lee