Patents by Inventor Geon-Hyoung AN
Geon-Hyoung AN 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: 20240120474Abstract: The present invention relates to a flexible electrode material and a preparation method therefor. An aspect of the present invention provides a flexible electrode material comprising a graphene film and a free-standing metal oxide formed on the graphene film.Type: ApplicationFiled: November 19, 2021Publication date: April 11, 2024Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITYInventors: Geon Hyoung AN, Young Geun LEE, Jae Yeon LEE
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Publication number: 20230326686Abstract: The present invention relates to a supercapacitor electrode material, and a method for manufacturing same. One aspect of the present invention provides a supercapacitor electrode material including: a carbon material; and phosphorus (p) and boron (b) doped into the carbon material.Type: ApplicationFiled: August 25, 2021Publication date: October 12, 2023Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITYInventors: Geon Hyoung AN, Young Geun LEE
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Patent number: 11440802Abstract: The present invention relates to an electrode active material, a method for manufacturing the same, and a lithium secondary battery comprising the same. A method for producing carbide using bean curd or waste bean curd according to an embodiment of the present invention comprises the steps of: drying bean curd or waste bean curd; thermally treating the dried bean curd or waste bean curd under an air atmosphere; and carbonizing the thermally treated bean curd or waste bean curd under an inert gas atmosphere.Type: GrantFiled: May 18, 2017Date of Patent: September 13, 2022Assignee: FOUNDATION FOR RESEARCH AND BUSINESS SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hyo Jin Ahn, Do Young Lee, Geon Hyoung An
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Patent number: 11393081Abstract: Disclosed herein is a method and apparatus for processing a thermal image. The method includes: performing histogram stretching on thermal image data of the thermal image; and adjusting a histogram stretching scale for thermal image data of a next frame using histogram data of the thermal image data on which the histogram stretching is performed. As a result, it is possible to mitigate that an image becomes less recognizable as thermal image data is deteriorated or saturated.Type: GrantFiled: May 28, 2019Date of Patent: July 19, 2022Assignee: HANWHA TECHWIN CO., LTD.Inventors: Seung Jin Han, Geon Hyoung Lee, Byung Joon Song, Han Seok Seo, Bo A Jung, Jin Wook Huh, Ki Rim Lee
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Patent number: 11018349Abstract: The present invention relates to a non-platinum catalyst for an oxygen reduction electrode, in which iron nanoparticles are dispersed in nitrogen-doped mesoporous carbon nanofibers, and the surfaces of the iron nanoparticles are at least partially exposed to the outside. In addition, the present invention relates to a method for producing a non-platinum catalyst for an oxygen reduction electrode using electrospinning and hydrogen activation reactions.Type: GrantFiled: December 8, 2015Date of Patent: May 25, 2021Assignee: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hyo-Jin Ahn, Geon-Hyoung An, Eun-Hwan Lee, Kyung-Won Park, Jung-In Sohn
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Publication number: 20210147241Abstract: The present invention relates to an electrode active material, a method for manufacturing the same, and a lithium secondary battery comprising the same. A method for producing carbide using bean curd or waste bean curd according to an embodiment of the present invention comprises the steps of: drying bean curd or waste bean curd; thermally treating the dried bean curd or waste bean curd under an air atmosphere; and carbonizing the thermally treated bean curd or waste bean curd under an inert gas atmosphere.Type: ApplicationFiled: May 18, 2017Publication date: May 20, 2021Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hyo Jin AHN, Do Young LEE, Geon Hyoung AN
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Publication number: 20200226728Abstract: Disclosed herein is a method and apparatus for processing a thermal image. The method includes: performing histogram stretching on thermal image data of the thermal image; and adjusting a histogram stretching scale for thermal image data of a next frame using histogram data of the thermal image data on which the histogram stretching is performed. As a result, it is possible to mitigate that an image becomes less recognizable as thermal image data is deteriorated or saturated.Type: ApplicationFiled: May 28, 2019Publication date: July 16, 2020Applicant: HANWHA TECHWIN CO., LTD.Inventors: Seung Jin Han, Geon Hyoung Lee, Byung Joon Song, Han Seok Seo, Bo A Jung, Jin Wook Huh, Ki Rim Lee
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Publication number: 20180375107Abstract: The present invention relates to a non-platinum catalyst for an oxygen reduction electrode, in which iron nanoparticles are dispersed in nitrogen-doped mesoporous carbon nanofibers, and the surfaces of the iron nanoparticles are at least partially exposed to the outside. In addition, the present invention relates to a method for producing a non-platinum catalyst for an oxygen reduction electrode using electrospinning and hydrogen activation reactions.Type: ApplicationFiled: December 8, 2015Publication date: December 27, 2018Inventors: Hyo-Jin AHN, Geon-Hyoung AN, Eun-Hwan LEE, Kyung-Won PARK, Jung-In SOHN
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Patent number: 9426481Abstract: A method and apparatus for encoding an image, and a method and apparatus for decoding an image. The method of encoding an image includes: classifying pixels forming an input image into a first pixel group in which bit depth of original pixel values is maintained, and a second pixel group in which bit depth of original pixel values is changed; generating a changed input image by changing the bit depth of pixel values of pixels in the second pixel group; and performing motion prediction and compensation on the changed input image.Type: GrantFiled: August 27, 2012Date of Patent: August 23, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-gu Kim, Geon-hyoung Lee, Se-hyeok Park, Tae-gyoung Ahn
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Patent number: 9355645Abstract: Provided are a method and apparatus for encoding/decoding stereo audio. In the method for encoding stereo audio, stereo audio is encoded based on at least one of the phase difference between first and second channel audios and information on an angle made by a vector on the intensity of mono-audio and a vector on the intensity of the first channel audio or a vector on the intensity of the second channel audio. Thus, the number of encoded parameters is minimized so that a compression ratio in the encoding of the stereo audio is improved.Type: GrantFiled: August 30, 2013Date of Patent: May 31, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Han-gil Moon, Geon-hyoung Lee, Chul-Woo Lee, Jong-hoon Jeong, Nam-suk Lee
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Patent number: 8843380Abstract: Encoding and decoding of residual signals are provided. In a method of encoding a residual signal of an audio signal, the residual signal is divided into a plurality of sections having different sizes, based on a change of the residual signal. Then, section division information representing information about the divided sections and section-by-section residual signal information representing characteristics of the sections of the residual signal are acquired. Thereafter, the residual signal is encoded based on the section division information and the section-by-section residual signal information.Type: GrantFiled: July 17, 2008Date of Patent: September 23, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Chul-woo Lee, Geon-hyoung Lee, Jong-hoon Jeong, Nam-suk Lee, Han-gil Moon
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Patent number: 8725519Abstract: Provided are audio encoding and decoding apparatuses capable of recovering a high-quality audio signal at a low bit rate. The audio encoding method includes: detecting at least one sinusoidal wave from an input audio signal; calculating components of additional basis vectors based on residual audio signals and the additional basis vectors of the sinusoidal wave; determining transmission of components of the additional basis vectors; and at least one of (a) encoding frequencies and (b) phases and amplitudes of the sinusoidal waves when the transmission of the components of the additional basis vectors are determined, wherein the residual audio signals are obtained by excluding the detected sinusoidal waves from the input audio signal.Type: GrantFiled: December 12, 2007Date of Patent: May 13, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Geon-hyoung Lee, Jae-one Oh, Chul-woo Lee, Jong-hoon Jeong, Nam-suk Lee
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Publication number: 20130343551Abstract: Provided are a method and apparatus for encoding/decoding stereo audio. In the method for encoding stereo audio, stereo audio is encoded based on at least one of the phase difference between first and second channel audios and information on an angle made by a vector on the intensity of mono-audio and a vector on the intensity of the first channel audio or a vector on the intensity of the second channel audio. Thus, the number of encoded parameters is minimized so that a compression ratio in the encoding of the stereo audio is improved.Type: ApplicationFiled: August 30, 2013Publication date: December 26, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Han-gil MOON, Geon-hyoung LEE, Chul-Woo LEE, Jong-hoon JEONG, Nam-suk LEE
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Patent number: 8538762Abstract: Provided are a method and apparatus for encoding/decoding stereo audio. In the method for encoding stereo audio, stereo audio is encoded based on at least one of the phase difference between first and second channel audios and information on an angle made by a vector on the intensity of mono-audio and a vector on the intensity of the first channel audio or a vector on the intensity of the second channel audio. Thus, the number of encoded parameters is minimized so that a compression ratio in the encoding of the stereo audio is improved.Type: GrantFiled: February 20, 2009Date of Patent: September 17, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Han-gil Moon, Geon-hyoung Lee, Chul-woo Lee, Jong-hoon Jeong, Nam-suk Lee
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Patent number: 8473302Abstract: Provided are parametric audio encoding and decoding apparatuses and methods thereof. In the parametric audio encoding method, an audio signal is segmented into a plurality of segments. At least one sine wave is extracted from each of the segments, and the extracted sine waves are connected. It is determined whether an extracted sine wave is a birth sine wave. If the extracted sine wave is a birth sine wave, a bit stream is generated by encoding the phase of the birth sine wave on the basis of the frequency of the birth sine wave, wherein the number of bits allocated to encode the phase of the birth sine wave is adjusted according to the frequency of the birth sine wave.Type: GrantFiled: July 10, 2008Date of Patent: June 25, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Geon-hyoung Lee, Jong-hoon Jeong, Nam-suk Lee
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Method and apparatus for encoding/decoding audio signal using adaptive LPC coefficient interpolation
Patent number: 8438017Abstract: Provided are a method and apparatus for encoding or decoding an audio signal by adaptively interpolating a linear predictive coding (LPC) coefficient. In the method and apparatus of encoding or decoding an audio signal, LPC coefficient interpolation is selectively performed depending on whether a transient section is present in a current frame, thereby preventing noise from occurring when interpolating LPC coefficients in the transient section.Type: GrantFiled: January 29, 2009Date of Patent: May 7, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-hoon Jeong, Geon-hyoung Lee, Chul-woo Lee, Nam-suk Lee, Han-gil Moon -
Patent number: 8422560Abstract: A method and apparatus for encoding/decoding a media signal. The method of decoding a media signal includes extracting first table index information from a header. The first table index information indicates M (M<N) tables substantially referred to by frames from among N tables which can be referred to for performing an operation performed by the frames, wherein N and M are natural numbers. Second table index information is then extracted from each frame. The second table index information indicates tables referred to by each frame from among M tables. The tables, which are referred to by the frames, are then identified by using the first and second table index information and the frames are decoded by referring to identified tables.Type: GrantFiled: April 23, 2008Date of Patent: April 16, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-hoon Jeong, Geon-hyoung Lee, Chul-woo Lee, Nam-suk Lee, Han-gil Moon
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Patent number: 8392177Abstract: Provided are a method and apparatus for encoding the frequency of a continuation sinusoidal signal and a method and apparatus for decoding the same. In the encoding method, a continuation sinusoidal signal successive to a sinusoidal signal in a previous section is extracted from a current section; a frequency of the continuation sinusoidal signal at the boundary between the current and previous sections is changed to a first frequency, based on representative frequencies of the continuation sinusoidal signal and at least one sinusoidal signal that belongs to a section adjacent to the current section and is successive to the continuation sinusoidal signal; and the first frequency is encoded.Type: GrantFiled: February 2, 2009Date of Patent: March 5, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Nam-suk Lee, Geon-hyoung Lee, Chul-woo Lee, Jong-hoon Jeong, Han-gil Moon
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Publication number: 20130051474Abstract: A method and apparatus for encoding an image, and a method and apparatus for decoding an image. The method of encoding an image includes: classifying pixels forming an input image into a first pixel group in which bit depth of original pixel values is maintained, and a second pixel group in which bit depth of original pixel values is changed; generating a changed input image by changing the bit depth of pixel values of pixels in the second pixel group; and performing motion prediction and compensation on the changed input image.Type: ApplicationFiled: August 27, 2012Publication date: February 28, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-gu KIM, Geon-hyoung LEE, Se-hyeok PARK, Tae-gyoung AHN
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Patent number: 8296137Abstract: Provided are a method and apparatus for coding and decoding an amplitude of partials, in which a step phenomenon can be prevented in the result of coding the amplitude of continuation partial partials in a parametric codec, thereby improving reproduced sound quality. The method of coding the amplitude of partials includes obtaining an inversely quantized amplitude of partials of a previous frame, determining a quantization level based on a function for the inversely quantized amplitude of the partials of the previous frame, and quantizing an amplitude of partials of a current frame based on the determined quantization level.Type: GrantFiled: December 7, 2007Date of Patent: October 23, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Nam-suk Lee, Geon-hyoung Lee, Jae-one Oh, Chul-woo Lee, Jong-hoon Jeong