Patents by Inventor Young Hoon Ahn
Young Hoon Ahn 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: 20240137790Abstract: The present disclosure discloses systems and methods of calculating a near-maximum likelihood detection (MLD) performance capability signal to interference plus noise ratio (SINR) according to instructions stored in non-transitory computer readable memory that when executed by a processor of a multiple-input, multiple output orthogonal frequency-division multiplexing (MIMO-OFDM) wireless communications receiver device cause the processor to perform operations including the processor acquiring Hi and noise variance ?n2 for each subcarrier of a set of subcarriers between a MIMO-OFDM wireless communications transmitter device and the wireless communications receiver device, computing an average received bit mutual information rate (RBIR) over all subcarriers, converting the average RBIR to an effective SINR; and selecting a modulation coding scheme (MCS).Type: ApplicationFiled: April 4, 2023Publication date: April 25, 2024Inventors: KYUNG HOON KWON, SEUNG HYEOK AHN, YOUNG HWAN KANG, SEUNG HO CHOO, JUNGCHUL SHIN, DAEHONG KIM
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Publication number: 20240090328Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.Type: ApplicationFiled: October 26, 2023Publication date: March 14, 2024Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
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Patent number: 11917907Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.Type: GrantFiled: November 22, 2021Date of Patent: February 27, 2024Assignee: Rohm and Haas Electronic Materials Korea Ltd.Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
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Patent number: 11281930Abstract: Disclosed is an object detection method and a system thereof. The object detection method for detecting an object, the method comprising the steps of: extracting line segments from an image in which a detection target is displayed, by an object detection system, generating merged line segments on the basis of directionality of each of the extracted line segments, by the object detection system, specifying candidate outer lines corresponding to outer lines of the object on the basis of a line segment set including the generated merged line segments, by the object detection system; and specifying the candidate outer lines as the outer lines of the object on the basis of whether or not the specified candidate outer lines correspond to appearance attributes of the object, by the object detection system.Type: GrantFiled: June 1, 2020Date of Patent: March 22, 2022Assignee: Fingram Co., Ltd.Inventors: Young Cheul Wee, Young Hoon Ahn, Yang Seong Jin
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Patent number: 11244194Abstract: An object recognition method performed by an object recognition system includes: setting a first binarization area in a portion of a binarization target area of an image, and a first coefficient calculation area including the first binarization area and having an area wider than the first binarization area by a predetermined ratio; determining a first binarization coefficient on the basis of pixel values included in the first coefficient calculation area; performing binarization on the first binarization area through the determined first binarization coefficient; setting a second binarization area in a portion other than the first binarization area, and a second coefficient calculation area including the second binarization area and having an area wider than the second binarization area; determining a second binarization coefficient on the basis of pixel values included in the second coefficient calculation area; and performing binarization on the second binarization area through the determined second binarizType: GrantFiled: February 25, 2020Date of Patent: February 8, 2022Assignee: Fingram Co., Ltd.Inventors: Young Cheul Wee, Young Hoon Ahn, Yang Seong Jin
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Publication number: 20200327354Abstract: An object recognition system and a method thereof are disclosed. The object recognition system includes: a preprocessing module for generating a first image, in which features of an object displayed in an original image to be recognized are enhanced in a first method on the basis of the original image, and a second image generated on the basis of the original image, in which the features of the object are enhanced in a second method; and a neural network module trained to receive the first image and the second image generated by the preprocessing module and output a result of recognizing the object.Type: ApplicationFiled: February 25, 2020Publication date: October 15, 2020Inventors: Young Cheul Wee, Young Hoon Ahn, Yang Seong Jin
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Publication number: 20200320332Abstract: Disclosed is an object detection method and a system thereof. The object detection method for detecting an object, the method comprising the steps of: extracting line segments from an image in which a detection target is displayed, by an object detection system, generating merged line segments on the basis of directionality of each of the extracted line segments, by the object detection system, specifying candidate outer lines corresponding to outer lines of the object on the basis of a line segment set including the generated merged line segments, by the object detection system; and specifying the candidate outer lines as the outer lines of the object on the basis of whether or not the specified candidate outer lines correspond to appearance attributes of the object, by the object detection system.Type: ApplicationFiled: June 1, 2020Publication date: October 8, 2020Inventors: Young Cheul WEE, Young Hoon AHN, Yang Seong JIN
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Publication number: 20200320331Abstract: An object recognition method performed by an object recognition system includes: setting a first binarization area in a portion of a binarization target area of an image, and a first coefficient calculation area including the first binarization area and having an area wider than the first binarization area by a predetermined ratio; determining a first binarization coefficient on the basis of pixel values included in the first coefficient calculation area; performing binarization on the first binarization area through the determined first binarization coefficient; setting a second binarization area in a portion other than the first binarization area, and a second coefficient calculation area including the second binarization area and having an area wider than the second binarization area; determining a second binarization coefficient on the basis of pixel values included in the second coefficient calculation area; and performing binarization on the second binarization area through the determined second binarizType: ApplicationFiled: February 25, 2020Publication date: October 8, 2020Inventors: Young Cheul Wee, Young Hoon Ahn, Yang Seong Jin
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Patent number: 9979969Abstract: Method and system for adaptive image compression using block characteristics are provided. For adaptive image compression, blocks in an image are quantized and compressed using a quantization table that was used in quantization of the blocks. An image compression system checks a block-characteristics quantization table corresponding to a specific block in the image to be compressed in order to quantize the specific block, and performs calculation using a value of a first element of the quantization table corresponding to a specific element of the specific block and a value of a second element of the checked block-characteristics quantization table corresponding to the specific element in order to quantize the specific element.Type: GrantFiled: April 24, 2015Date of Patent: May 22, 2018Assignees: FINGRAM CO., LTD., QURAM CO., LTD.Inventors: Young Cheul Wee, Young Hoon Ahn, Moo Jae Lee
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Patent number: 9560364Abstract: An image processing system and a method thereof is disclosed. A palette including an N number of index pixel values of a processing target image and corresponding index values is created. N is an integer equal to or smaller than 2. An image indexing process is performed on each processing target pixel. When a pixel value of the processing target pixel is a pixel value of one of the N number of index pixel values, a pixel data on a converted image corresponding to the processing target pixel is set as an index value on the palette corresponding to the pixel value of the processing target pixel. Otherwise, the pixel data on the converted image corresponding to the processing target pixel is set as an exceptional value, and the pixel value of the processing target pixel is stored in an exception buffer.Type: GrantFiled: February 25, 2015Date of Patent: January 31, 2017Assignees: FINGRAM CO., LTD., QURAM CO., LTD.Inventors: Young Cheul Wee, Young Hoon Ahn
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Patent number: 9514392Abstract: A method for creating a compound file where additional data is inserted into an image file and a data storage device having the compound file recorded therein is provided. The method includes receiving, by a compound file creating apparatus, the image file and the additional data, and creating, by the compound file creating apparatus, the compound file by using the received image file and the additional data, wherein the compound file comprises an image file header corresponding to the image file, image data corresponding to the image file, and a marker recorded in a tail of the compound file and indicating that the compound file is an image file having the additional data inserted therein.Type: GrantFiled: February 21, 2014Date of Patent: December 6, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Cheul Wee, Young-Hoon Ahn
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Publication number: 20160316204Abstract: Method and system for adaptive image compression using block characteristics are provided. For adaptive image compression, blocks in an image are quantized and compressed using a quantization table that was used in quantization of the blocks. An image compression system checks a block-characteristics quantization table corresponding to a specific block in the image to be compressed in order to quantize the specific block, and performs calculation using a value of a first element of the quantization table corresponding to a specific element of the specific block and a value of a second element of the checked block-characteristics quantization table corresponding to the specific element in order to quantize the specific element.Type: ApplicationFiled: April 24, 2015Publication date: October 27, 2016Inventors: Young Cheul Wee, Young Hoon Ahn, Moo Jae Lee
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Publication number: 20150245029Abstract: An image processing system and a method thereof is disclosed. A palette including an N number of index pixel values of a processing target image and corresponding index values is created. N is an integer equal to or smaller than 2. An image indexing process is performed on each processing target pixel. When a pixel value of the processing target pixel is a pixel value of one of the N number of index pixel values, a pixel data on a converted image corresponding to the processing target pixel is set as an index value on the palette corresponding to the pixel value of the processing target pixel. Otherwise, the pixel data on the converted image corresponding to the processing target pixel is set as an exceptional value, and the pixel value of the processing target pixel is stored in an exception buffer.Type: ApplicationFiled: February 25, 2015Publication date: August 27, 2015Inventors: Young Cheul Wee, Young Hoon Ahn
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Patent number: 8951938Abstract: The present invention relates to the use of rosamine derivative compounds, as described herein, in detecting differentiated forms of a cell type of interest in a sample and in screening for compounds which inhibit differentiation of the cell type of interest.Type: GrantFiled: December 22, 2008Date of Patent: February 10, 2015Assignees: New York University, President and Fellows of Harvard CollegeInventors: Young-Tae Chang, Young-Hoon Ahn, Yun Kyung Kim, Bridget Wagner, Hyman A. Carrinski, Paul Clemons, Stuart Schreiber
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Patent number: 8948530Abstract: Provided are an adaptive image compression system and method. The adaptive image compression method includes a step of determining, at an adaptive image compression system, characteristics of an image that is to be compressed, a step of determining, at the adaptive image compression system, a quantization scale factor based on the characteristics of the image that is to be compressed, a step of generating an adaptive quantization table corresponding to the image that is to be compressed based on the determined quantization scale factor, and a step of encoding the image that is to be compressed using the generated adaptive quantization table.Type: GrantFiled: March 14, 2013Date of Patent: February 3, 2015Assignees: Quram Co., Ltd., Fingram Co., Ltd.Inventors: Young Cheul Wee, Young Hoon Ahn, Sung Soo Park
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Publication number: 20140241647Abstract: A method for creating a compound file where additional data is inserted into an image file and a data storage device having the compound file recorded therein is provided. The method includes receiving, by a compound file creating apparatus, the image file and the additional data, and creating, by the compound file creating apparatus, the compound file by using the received image file and the additional data, wherein the compound file comprises an image file header corresponding to the image file, image data corresponding to the image file, and a marker recorded in a tail of the compound file and indicating that the compound file is an image file having the additional data inserted therein.Type: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Young-Cheul WEE, Young-Hoon AHN
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Patent number: 8735150Abstract: The present invention relates to methods of detecting, in a sample, embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods include providing a sample potentially containing such cells and providing a rosamine derivative compound of the formula (I): where the rosamine derivative compound selectively produces fluorescent signals for embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods also include the steps of contacting the sample with the rosamine derivative compound and detecting the presence of the embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells based on fluorescent signals emitted by the sample following said contacting.Type: GrantFiled: August 22, 2011Date of Patent: May 27, 2014Assignees: New York University, National University of Singapore, Agency for Science, Technology & ResearchInventors: Young-Tae Chang, Hyung Ho Ha, Nam Young Kang, Seong Wook Yun, Sung Jin Park, Young-Hoon Ahn
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Publication number: 20140056516Abstract: Provided are an adaptive image compression system and method. The adaptive image compression method includes a step of determining, at an adaptive image compression system, characteristics of an image that is to be compressed, a step of determining, at the adaptive image compression system, a quantization scale factor based on the characteristics of the image that is to be compressed, a step of generating an adaptive quantization table corresponding to the image that is to be compressed based on the determined quantization scale factor, and a step of encoding the image that is to be compressed using the generated adaptive quantization table.Type: ApplicationFiled: March 14, 2013Publication date: February 27, 2014Applicants: FINGRAM CO.,LTD, QURAM CO.,LTD.Inventors: Young Cheul Wee, Young Hoon Ahn, Sung Soo Park
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Publication number: 20120052505Abstract: The present invention relates to methods of detecting, in a sample, embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods include providing a sample potentially containing such cells and providing a rosamine derivative compound of the formula (I): where the rosamine derivative compound selectively produces fluorescent signals for embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods also include the steps of contacting the sample with the rosamine derivative compound and detecting the presence of the embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells based on fluorescent signals emitted by the sample following said contacting.Type: ApplicationFiled: August 22, 2011Publication date: March 1, 2012Applicants: NEW YORK UNIVERSITY, Agency for Science, Technology and Research (A*STAR), NATIONAL UNIVERSITY OF SINGAPOREInventors: Young-Tae CHANG, Hyung Ho HA, Nam Young KANG, Seong Wook YUN, Sung Jin PARK, Young-Hoon AHN
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Patent number: 8026110Abstract: The present invention relates to a rosamine derivative compound, as described herein, having the following structure: Also disclosed are methods of making such compounds and for using them for detection and imaging.Type: GrantFiled: September 11, 2007Date of Patent: September 27, 2011Assignee: New York UniversityInventors: Young-Tae Chang, Young-Hoon Ahn