Patents by Inventor Jin Keun Seo
Jin Keun Seo 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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Publication number: 20240144875Abstract: A display device is disclosed that includes a pixel component configured to output an image based on a first driving frequency, a scan driver configured to sequentially provide a scan signal to each pixel row in each frame based on the first driving frequency, and a driving controller configured control the scan driver such that, in the case where image data includes data corresponding to a static image, a display area is divided into a first area for the static image, and a second area for a video, and the first area is driven at a second driving frequency, and the second area is driven at a third driving frequency. The driving controller may control the scan driver such that a driving frequency corresponding to the first area is reduced to the second driving frequency, and a driving frequency corresponding to the second area is increased to the third driving frequency.Type: ApplicationFiled: April 27, 2023Publication date: May 2, 2024Inventors: Bon Seog GU, Hae Kwan SEO, Jin Young ROH, Jae Keun LIM
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Publication number: 20240105108Abstract: A source driver includes a digital-to-analog converter that converts signals corresponding to first and second colors included in digital image data into first and second analog color data voltages, respectively, an output buffer unit including a first output buffer that alternately outputs the first color data voltage and the second color data voltage during one horizontal period, and a controller that controls the digital-to-analog converter and the first output buffer to alternately output the first color data voltage and the second color data voltage corresponding to each horizontal period for each horizontal period. The controller controls the first output buffer such that the second color data voltage is output after the first color data voltage is first output during a first horizontal period, and the first color data voltage is output after the second color data voltage is first output during a subsequent second horizontal period.Type: ApplicationFiled: April 19, 2023Publication date: March 28, 2024Inventors: Hae Kwan SEO, Bon Seog GU, Jin Young ROH, Jae Keun LIM
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Patent number: 11942030Abstract: A source driver includes a digital-to-analog converter that converts signals corresponding to first and second colors included in digital image data into first and second analog color data voltages, respectively, an output buffer unit including a first output buffer that alternately outputs the first color data voltage and the second color data voltage during one horizontal period, and a controller that controls the digital-to-analog converter and the first output buffer to alternately output the first color data voltage and the second color data voltage corresponding to each horizontal period for each horizontal period. The controller controls the first output buffer such that the second color data voltage is output after the first color data voltage is first output during a first horizontal period, and the first color data voltage is output after the second color data voltage is first output during a subsequent second horizontal period.Type: GrantFiled: April 19, 2023Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hae Kwan Seo, Bon Seog Gu, Jin Young Roh, Jae Keun Lim
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Patent number: 10989779Abstract: An under-sampling apparatus for MR image reconstruction by using machine learning and a method thereof, an MR image reconstruction device by using machine learning and a method thereof, and a recoding medium thereof are disclosed. The disclosed under-smapling apparatus includes: a setting portion that sets a region corresponding to a center of the k-space image as a first region and remaining regions as a second region; and an under-sampling portion that full-samples the first region and under-samples the second region, wherein in the under-sampling performed in the second region, lines are selected at regular intervals and then only the selected line is full-sampled. According to the under-sampling apparatus, a high-resolution MR image can be acquired while reducing imaing time.Type: GrantFiled: September 27, 2018Date of Patent: April 27, 2021Assignee: YONSEI UNIVERSITY, UNIVERSITY - INDUSTRY FOUNDATION (UIF)Inventors: Chang Min Hyun, Jin Keun Seo, Hwa Pyung Kim, Sung Min Lee, Sung Chul Lee
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Publication number: 20190101605Abstract: An under-sampling apparatus for MR image reconstruction by using machine learning and a method thereof, an MR image reconstruction device by using machine learning and a method thereof, and a recoding medium thereof are disclosed. The disclosed under-smapling apparatus includes: a setting portion that sets a region corresponding to a center of the k-space image as a first region and remaining regions as a second region; and an under-sampling portion that full-samples the first region and under-samples the second region, wherein in the under-sampling performed in the second region, lines are selected at regular intervals and then only the selected line is full-sampled. According to the under-sampling apparatus, a high-resolution MR image can be acquired while reducing imaing time.Type: ApplicationFiled: September 27, 2018Publication date: April 4, 2019Inventors: Chang Min HYUN, Jin Keun SEO, Hwa Pyung KIM, Sung Min LEE, Sung Chul LEE
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Patent number: 8094936Abstract: A method and apparatus to segment a motion area in real-time to detect motion in a surveillance camera system are provided. The method includes updating a background image by using a previous input image from among an input image sequence, generating a difference image between a current image of the image sequence and the background image, generating a second function to minimize a first function including regularized energy in the motion area of the difference image and regularized energy in an area without motion of the difference image and segmenting the motion area based on the second function. Therefore, while noise is removed, the motion area is segmented accurately and rapidly even in a low illumination environment so as to detect a moving object.Type: GrantFiled: November 19, 2007Date of Patent: January 10, 2012Assignee: Samsung Techwin Co., Ltd.Inventors: Hyen-kyun Woo, Jin-keun Seo, Min-ok Lee
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Patent number: 8050455Abstract: A photographing apparatus and a method for controlling target tracking are provided. The photographing apparatus includes a target extractor for extracting target information in a present frame based on the difference between a pixel value of one pixel among previous pixels constituting the target of the previous frame in an area adjacent to the present pixel constituting the present frame and a pixel value of the present pixel, and a tracking controller for controlling automatic tracking for the target based on the target information. Accordingly, the target can be extracted more precisely.Type: GrantFiled: June 4, 2007Date of Patent: November 1, 2011Assignee: Samsung Techwin Co., Ltd.Inventors: Seung-in Noh, Jin-keun Seo, Suk-ho Lee, Hyun-gun Woo
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Patent number: 7847565Abstract: A system for electrical impedance tomography and method thereof are disclosed, by which electrical characteristics within a measurement target can be precisely detected. The present invention includes the steps of injection a current to a measurement target via at least one electrode pair selected form a plurality of electrodes (250) attached to the measurement target, detecting voltage of a surface of the measurement target using a plurality of voltmeters (260) connected to the electrodes that are not selected, respectively, adjusting gains of the voltmeters according to maximum values of the detected voltages, respectively, amplifying the detected voltages using the gain-adjusted voltmeters, respectively, and imaging an internal part of the measurement target based on the amplified voltages.Type: GrantFiled: July 28, 2006Date of Patent: December 7, 2010Assignee: University-Industry Cooperation Group of Kyunghee UniversityInventors: Eung Je Woo, Dong In Oh, Jin Keun Seo, Oh In Kwon
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Patent number: 7514921Abstract: System for visualizing conductivity and current density distributions including a plurality of current injecting devices (100) for injecting currents into a measuring object; a measuring unit(200) for measuring a magnetic flux density due to the currents injected into a measuring object; an operating unit(300) for selecting one pair of the current injecting devices in succession so as to inject currents of different directions into the measuring object, and calculating directional components of an anisotropic conductivity inside of the measuring object on the basis of the measured magnetic flux density; and displaying means for visualizing an inside of the measuring object by using the calculated directional components of the anisotropic conductivity.Type: GrantFiled: November 23, 2004Date of Patent: April 7, 2009Assignee: University-Industry Cooperation Group of Kyunghee UniversityInventors: Eung Je Woo, Jin Keun Seo, Oh In Kwon, Tae Seong Kim, Byung II Lee, Suk Ho Lee
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Publication number: 20090030336Abstract: An apparatus for detecting an anomaly and method thereof are disclosed, by which a size and location of an anomaly of a beast cancer and the like can be precisely detected as well as a presence or non-presence of the anomaly based on data measured on a surface of a body. The present invention includes supplying a first frequency voltage having a first frequency to a measurement target, detecting a first signal induced by the first frequency voltage from the measurement target, supplying a second frequency voltage having a second frequency to the measurement target, detecting a second signal induced by the second frequency voltage from the measurement target, correcting the first and second signals based on slopes of the detected first and second signals, and calculating a location and size of the anomaly within the measurement target based on the corrected first and second signals.Type: ApplicationFiled: July 28, 2006Publication date: January 29, 2009Applicant: University-Industry Cooperation Group of Kyunghee UniversityInventors: Eung Je Woo, Dong In Oh, Jin Keun Seo, Oh In Kwon
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Publication number: 20080292142Abstract: A method and apparatus to segment a motion area in real-time to detect motion in a surveillance camera system are provided. The method includes updating a background image by using a previous input image from among an input image sequence, generating a difference image between a current image of the image sequence and the background image, generating a second function to minimize a first function including regularized energy in the motion area of the difference image and regularized energy in an area without motion of the difference image and segmenting the motion area based on the second function. Therefore, while noise is removed, the motion area is segmented accurately and rapidly even in a low illumination environment so as to detect a moving object.Type: ApplicationFiled: November 19, 2007Publication date: November 27, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Hyen-kyun WOO, Jin-keun Seo, Min-ok Lee
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Patent number: 7440796Abstract: System for visualizing conductivity and current density distributions including a plurality of current injecting devices for injecting currents into a measuring object, an MRI scanner for measuring one directional component of a magnetic flux density due to each of the currents injected into a measuring object, an operating part for controlling the current injecting devices so as to inject currents of different directions into the measuring object, and calculating a conductivity distribution and a current density distribution inside of the measuring object by using the one directional component of a magnetic flux density, and displaying means for visualizing the conductivity and current density distributions calculated by the operating part, thereby permitting to visualize the conductivity and the current density of the measuring object more accurately.Type: GrantFiled: December 24, 2003Date of Patent: October 21, 2008Assignee: Kohwang Foundation, Kohwang Board of TrusteeInventors: Eung Je Woo, Jin Keun Seo, Ohin Kwon
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Publication number: 20080252304Abstract: A system for electrical impedance tomography and method thereof are disclosed, by which electrical characteristics within a measurement target can be precisely detected. The present invention includes the steps of injection a current to a measurement target via at least one electrode pair selected form a plurality of electrodes (250) attached to the measurement target, detecting voltage of a surface of the measurement target using a plurality of voltmeters (260) connected to the electrodes that are not selected, respectively, adjusting gains of the voltmeters according to maximum values of the detected voltages, respectively, amplifying the detected voltages using the gain-adjusted voltmeters, respectively, and imaging an internal part of the measurement target based on the amplified voltages.Type: ApplicationFiled: July 28, 2006Publication date: October 16, 2008Applicant: University-Industry Cooperation Group of Kyunghee UniversityInventors: Eung Je Woo, Dong In Oh, Jin Keun Seo, Oh In Kwon
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Publication number: 20080101655Abstract: A photographing apparatus and a method for controlling target tracking are provided. The photographing apparatus includes a target extractor for extracting target information in a present frame based on the difference between a pixel value of one pixel among previous pixels constituting the target of the previous frame in an area adjacent to the present pixel constituting the present frame and a pixel value of the present pixel, and a tracking controller for controlling automatic tracking for the target based on the target information. Accordingly, the target can be extracted more precisely.Type: ApplicationFiled: June 4, 2007Publication date: May 1, 2008Inventors: Seung-in Noh, Jin-keun Seo, Suk-ho Lee, Hyun-gun Woo
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Publication number: 20070203425Abstract: Apparatus and method for detecting a lesion, the method including the steps of applying a voltage to an electrode in contact with a part of a body, sensing signals from an examining part of the body by using probe (14) having a plurality of sensing electrodes (143), and calculating a position and a size of a lesion in the body with reference to the signals sensed thus, whereby detecting not only existence of a lesion, but also a position and a size of the lesion.Type: ApplicationFiled: April 27, 2005Publication date: August 30, 2007Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNGHEE UNIVERSITYInventors: Eung Je Woo, Jin Keun Seo, Oh In Kwon
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Publication number: 20070088210Abstract: System for visualizing conductivity and current density distributions including a plurality of current injecting devices (100) for injecting currents into a measuring object; a measuring unit (200) for measuring a magnetic flux density due to the currents injected into a measuring object; an operating unit (300) for selecting one pair of the current injecting devices in succession so as to inject currents of different directions into the measuring object, and calculating directional components of an anisotropic conductivity inside of the measuring object on the basis of the measured magnetic flux density; and displaying means for visualizing an inside of the measuring object by using the calculated directional components of the anisotropic conductivity.Type: ApplicationFiled: November 23, 2004Publication date: April 19, 2007Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNGHEE UNIVERSITYInventors: Eung Je Woo, Jin Keun Seo, Oh In Kwon, Tae Seong Kim, Byung Il Lee, Suk Ho Lee