Patents by Inventor Heung Kyu Lee
Heung Kyu 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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Publication number: 20240033304Abstract: The composition of the present invention induces changes in the composition of gut microbiota, particularly changes in the composition of Desulfovibrionasaceae strains, in a high glucose diet environment, so it has no toxicity to the body and has excellent brain tumor inhibitory activity, and thus it can effectively prevent, improve or treat brain tumors. Furthermore, such changes in the composition of gut microbiota in a high glucose diet environment induces a synergistic effect with anticancer drugs, particularly immune checkpoint inhibitors, and thus it can ultimately contribute to improving the survival rate of brain tumor patients.Type: ApplicationFiled: December 28, 2021Publication date: February 1, 2024Inventors: Heung Kyu Lee, Jaeho Kim
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Publication number: 20220321736Abstract: An image encryption method. The method includes generating an adjusted secret image by adjusting an intensity range to be the same for each RGB channel of a secret image; generating a modulated image by repeating pixel modulation in block units on the adjusted secret image; and generating an interlaced image by interlacing odd-numbered lines of the adjusted secret image with even-numbered lines of the modulated image or interlacing even-numbered lines of the adjusted secret image with odd-numbered lines with the modulated image.Type: ApplicationFiled: March 31, 2022Publication date: October 6, 2022Applicant: Korea Advanced Institute of Science and TechnologyInventors: Heung Kyu LEE, Sang Keun JI, Ji Hyeon KANG
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Patent number: 10769745Abstract: Disclosed is a 3D mesh model watermarking method using a divisional scheme. The method of inserting a watermark into a three-dimensional (3D) mesh model includes: calculating a geometric primitive of the 3D mesh model; dividing the 3D mesh model into a plurality of mesh segments by using the geometric primitive; converting the mesh segments into mesh segments of a vertex distance-based coordinate system; inserting a predetermined watermark into each of the mesh segments of the vertex distance-based coordinate system; and restoring the mesh segments into which the watermark is inserted to a Cartesian coordinate system.Type: GrantFiled: December 21, 2016Date of Patent: September 8, 2020Assignee: The Korea Advanced Institute of Science and TechnologyInventors: Heung-Kyu Lee, Han-Ul Jang, Hak-Yeol Choi, Jeongho Son, Seung-Min Mun, Dongkyu Kim, Jong-Uk Hou, Wookhyung Kim
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Patent number: 10438311Abstract: In a watermark embedding method and apparatus, a layered three-dimensional model is aligned in a printing direction based on a layering direction of the layered three-dimensional model. Then, a watermark having a predetermined pattern is embedded into the aligned three-dimensional model in a direction orthogonal to the printing direction so that the embedded watermark is not associated with the printing direction.Type: GrantFiled: September 28, 2017Date of Patent: October 8, 2019Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Heung-Kyu Lee, Jong-Uk Hou, Hak-Yeol Choi, Hyun-Ji Song, Do-Gon Kim, Han-Ul Jang
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Patent number: 10263467Abstract: Provided is a wireless power antenna for wirelessly transmitting, receiving, or relaying power, the wireless power antenna comprising an insulating sheet and a wireless power coil including a split pattern unit including a plurality of patterns spaced from each other in at least a region thereof in a widthwise direction, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.Type: GrantFiled: December 12, 2013Date of Patent: April 16, 2019Assignee: LS CABLE & SYSTEM LTD.Inventors: Sung-Hoon Moon, Heung-kyu Lee, Ji-Hyung Lee, Min-Seok Han, Lae-Hyuk Park, Young-Sun Kim, Un-Kyu Park, Sung-Han You
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Patent number: 10224747Abstract: Provided is a wireless power antenna for wirelessly transmitting, receiving, or relaying power, the wireless power antenna comprising an insulating sheet and a wireless power coil including a split pattern unit including a plurality of patterns spaced from each other in at least a region thereof in a widthwise direction, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.Type: GrantFiled: September 6, 2017Date of Patent: March 5, 2019Assignee: LS CABLE & SYSTEM LTD.Inventors: Sung-Hoon Moon, Heung-Kyu Lee, Ji-Hyung Lee, Min-Seok Han, Lae-Hyuk Park, Young-Sun Kim, Un-Kyu Park, Sung-Han You
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Patent number: 10049422Abstract: Provided are a template-based watermarking method for a DIBR 3D image and an apparatus thereof. The method includes: determining a template watermark inserting area and a message watermark inserting area in spatial domain of an image; transforming the determined template watermark inserting area into a frequency domain to insert at least one preset template watermark and transforming the determined message watermark inserting area into a frequency domain to insert a preset message watermark; and transforming the template watermark inserting area, into which the template watermark is inserted, into a spatial domain and transforming the message watermark inserting area, into which the message watermark is inserted, into a spatial domain.Type: GrantFiled: August 23, 2016Date of Patent: August 14, 2018Assignee: Korea Advanced Institute of Science and TechnologyInventors: Heung-Kyu Lee, Wookhyung Kim, Seunghun Nam, Ji-hyun Kang, Jong-Uk Hou, Han-ul Jang
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Publication number: 20180114289Abstract: In a watermark embedding method and apparatus, a layered three-dimensional model is aligned in a printing direction based on a layering direction of the layered three-dimensional model. Then, a watermark having a predetermined pattern is embedded into the aligned three-dimensional model in a direction orthogonal to the printing direction so that the embedded watermark is not associated with the printing direction.Type: ApplicationFiled: September 28, 2017Publication date: April 26, 2018Inventors: Heung-Kyu LEE, Jong-Uk HOU, Hak-Yeol CHOI, Hyun-Ji SONG, Do-Gon KIM, Han-Ul JANG
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Publication number: 20170366013Abstract: Provided is a wireless power antenna for wirelessly transmitting, receiving, or relaying power, the wireless power antenna comprising an insulating sheet and a wireless power coil including a split pattern unit including a plurality of patterns spaced from each other in at least a region thereof in a widthwise direction, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.Type: ApplicationFiled: September 6, 2017Publication date: December 21, 2017Applicant: LS CABLE & SYSTEM LTD.Inventors: Sung-Hoon MOON, Heung-Kyu LEE, Ji-Hyung LEE, Min-Seok HAN, Lae-Hyuk PARK, Young-Sun KIM, Un-Kyu PARK, Sung-Han YOU
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Patent number: 9787020Abstract: Disclosed is a high-voltage male connector including: a male terminal formed of a metal material and having a plate shape; an insulating cap provided on a front end of the male terminal; an inner housing into which the male terminal is inserted and mounted such that the front end of the male terminal faces the outside; a partition unit integrally formed with an inner side of the inner housing and having a tetragonal pipe shape covering the male terminal; and an outer housing which is formed of a metal material and into which the inner housing is inserted and mounted.Type: GrantFiled: July 2, 2014Date of Patent: October 10, 2017Assignee: LS CABLE & SYSTEM LTD.Inventors: Jeong-Hyeok Choi, Moon-Kyu Jang, Heung-Kyu Lee
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Publication number: 20170249715Abstract: Provided are a template-based watermarking method for a DIBR 3D image and an apparatus thereof. The method includes: determining a template watermark inserting area and a message watermark inserting area in spatial domain of an image; transforming the determined template watermark inserting area into a frequency domain to insert at least one preset template watermark and transforming the determined message watermark inserting area into a frequency domain to insert a preset message watermark; and transforming the template watermark inserting area, into which the template watermark is inserted, into a spatial domain and transforming the message watermark inserting area, into which the message watermark is inserted, into a spatial domain.Type: ApplicationFiled: August 23, 2016Publication date: August 31, 2017Inventors: Heung-Kyu Lee, Wookhyung Kim, Seunghun Nam, Ji-hyun Kang, Jong-Uk Hou, Han-ul Jang
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Publication number: 20170213310Abstract: Disclosed is a 3D mesh model watermarking method using a divisional scheme. The method of inserting a watermark into a three-dimensional (3D) mesh model includes: calculating a geometric primitive of the 3D mesh model; dividing the 3D mesh model into a plurality of mesh segments by using the geometric primitive; converting the mesh segments into mesh segments of a vertex distance-based coordinate system; inserting a predetermined watermark into each of the mesh segments of the vertex distance-based coordinate system; and restoring the mesh segments into which the watermark is inserted to a Cartesian coordinate system.Type: ApplicationFiled: December 21, 2016Publication date: July 27, 2017Inventors: Heung-Kyu Lee, Han-Ul Jang, Hak-Yeol Choi, Jeongho Son, Seung-Min Mun, Dongkyu Kim, Jong-Uk Hou, Wookhyung Kim
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Publication number: 20170025787Abstract: Disclosed is a high-voltage male connector including: a male terminal formed of a metal material and having a plate shape; an insulating cap provided on a front end of the male terminal; an inner housing into which the male terminal is inserted and mounted such that the front end of the male terminal faces the outside; a partition unit integrally formed with an inner side of the inner housing and having a tetragonal pipe shape covering the male terminal; and an outer housing which is formed of a metal material and into which the inner housing is inserted and mounted.Type: ApplicationFiled: July 2, 2014Publication date: January 26, 2017Applicant: LS CABLE & SYSTEM LTDInventors: Jeong-Hyeok CHOI, Moon-Kyu JANG, Heung-Kyu LEE
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Patent number: 9355243Abstract: A method and a system for authenticating a program are provided. A user system receives a program developed by a developer system and an authentication key, creates an additional authentication key by applying a preset authentication algorithm to the received program, and uses the received program if the received authentication key is matched to the additional authentication key.Type: GrantFiled: September 2, 2013Date of Patent: May 31, 2016Assignee: LG INNOTEK CO., LTD.Inventors: Heung Kyu Lee, Hyoung Soo Lee
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Publication number: 20150318711Abstract: Provided is a wireless power antenna for wirelessly transmitting, receiving, or relaying power, the wireless power antenna comprising an insulating sheet and a wireless power coil including a split pattern unit including a plurality of patterns spaced from each other in at least a region thereof in a widthwise direction, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.Type: ApplicationFiled: December 12, 2013Publication date: November 5, 2015Applicant: LS CABLE & SYSTEM LTD.Inventors: Sung-Hoon MOON, Heung-Kyu LEE, Ji-Hyung LEE, Min-Seok HAN, Lae-Hyuk PARK, Young-Sun KIM, Un-Kyu PARK, Sung-Han YOU
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Publication number: 20150235019Abstract: A method and a system for authenticating a program are provided. A user system receives a program developed by a developer system and an authentication key, creates an additional authentication key by applying a preset authentication algorithm to the received program, and uses the received program if the received authentication key is matched to the additional authentication key.Type: ApplicationFiled: September 2, 2013Publication date: August 20, 2015Applicant: LG INNOTEK CO., LTD.Inventors: Heung Kyu Lee, Hyoung Soo Lee
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Composite masking system and method for improving invisibility of high-definition video watermarking
Patent number: 8553881Abstract: A composite masking system and method for improving the invisibility of high-definition video watermarking. The composite masking system includes a watermark generation module, a mask generation module, and watermark embedment means. The watermark generation module generates a basic watermark pattern using a private key, and generate a watermark pattern by repeatedly extending the basic watermark pattern. The mask generation module generates a Noise Visibility Function (NVF) mask using NVF masking means, an adaptive dithering mask using adaptive dithering masking means, and a contour mask using contour masking means. The watermark embedment means generates a composite mask by multiplying the NVF mask, the adaptive dithering mask and the contour mask together, multiplying the composite mask and the extended watermark pattern together, and embedding the result of the second multiplication in the luminance channel of an original image.Type: GrantFiled: July 11, 2011Date of Patent: October 8, 2013Assignee: Korea Advanced Institute of Science and Technology (KAIST)Inventors: Heung Kyu Lee, Tae Woo Oh, Kyung Su Kim, Ji Won Lee, Hee Dong Kim -
COMPOSITE MASKING SYSTEM AND METHOD FOR IMPROVING INVISIBILITY OF HIGH-DEFINITION VIDEO WATERMARKING
Publication number: 20120027207Abstract: A composite masking system and method for improving the invisibility of high-definition video watermarking. The composite masking system includes a watermark generation module, a mask generation module, and watermark embedment means. The watermark generation module generates a basic watermark pattern using a private key, and generate a watermark pattern by repeatedly extending the basic watermark pattern. The mask generation module generates a Noise Visibility Function (NVF) mask using NVF masking means, an adaptive dithering mask using adaptive dithering masking means, and a contour mask using contour masking means. The watermark embedment means generates a composite mask by multiplying the NVF mask, the adaptive dithering mask and the contour mask together, multiplying the composite mask and the extended watermark pattern together, and embedding the result of the second multiplication in the luminance channel of an original image.Type: ApplicationFiled: July 11, 2011Publication date: February 2, 2012Inventors: Heung Kyu LEE, Tae Woo Oh, Kyung Su Kim, Ji Won Lee, Hee Dong Kim -
Patent number: 7953975Abstract: Disclosed herein is a method of generating anti-collusion fingerprint codes using a (na, n2a?2, na?1, n, 0, 1) GD-PBIBD. The fingerprint codes are generated using computer equipment that executes a program for executing a program for generating the fingerprint codes. The method includes step 1 of receiving an arbitrary prime number n and an arbitrary integer a larger than 3, step 2 of generating an n×n index matrix, step 3 of generating n n×n type_i matrixes, step 4 of generating an n2×n2 matrix using the n×n index matrix and the n×n type_i matrixes, step 5 of generating an na×n2a?2 matrix, and step 6 of extracting one arbitrary column from the na×n2a?2 matrix.Type: GrantFiled: September 5, 2007Date of Patent: May 31, 2011Assignee: Korea Advanced Institute of Science and TechnologyInventors: Heung Kyu Lee, In Koo Kang, Sung Hyuk Park, Eun Mee Lee
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Publication number: 20090060257Abstract: The present invention relates, in general, to a watermarking method resistant to a geometric attack in a wavelet transform domain, and, more particularly, to technology for embedding a watermark in a discrete wavelet transform (DWT) domain, thus extracting autocorrelation (AC) peaks, which play an important part in the estimation of geometric attacks in ACF-based watermarking, and detecting watermarks using the AC peaks even after geometric distortion is applied. In the watermarking method of the present invention, a watermark pattern is embedded in subbands of a Discrete Wavelet Transform (DWT) domain. An Autocorrelation Function (ACF) of a watermark is executed in the domain, thus detecting a watermark required to estimate a geometric attack. A watermark signal is detected using an undecimated wavelet transform so as to compensate for an image shift in the watermark.Type: ApplicationFiled: August 29, 2007Publication date: March 5, 2009Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Heung Kyu LEE, Choong Hoon LEE