Patents by Inventor Kil-Hwan Kim
Kil-Hwan Kim 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: 12007840Abstract: A storage controller and an operating method of the storage controller are provided. The storage controller includes processing circuitry configured to read sub-stripe data from each of a plurality of non-volatile memory devices connected with a RAID (Redundant Array of Inexpensive Disk), check error information of at least one of the sub-stripe data, and perform a RAID recovery operation in response to the at least one of the sub-stripe data having an uncorrectable error, and a RAID memory which stores calculation results of the RAID recovery operation.Type: GrantFiled: November 3, 2021Date of Patent: June 11, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Kwang Ho Yoo, Seung Min Ha, Kil Hwan Kim, Ho Young Chang, Ju Hyung Hong
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Publication number: 20220269561Abstract: A storage controller and an operating method of the storage controller are provided. The storage controller includes processing circuitry configured to read sub-stripe data from each of a plurality of non-volatile memory devices connected with a RAID (Redundant Array of Inexpensive Disk), check error information of at least one of the sub-stripe data, and perform a RAID recovery operation in response to the at least one of the sub-stripe data having an uncorrectable error, and a RAID memory which stores calculation results of the RAID recovery operation.Type: ApplicationFiled: November 3, 2021Publication date: August 25, 2022Applicant: Samsung Electronics Co., Ltd.Inventors: Kwang Ho YOO, Seung Min HA, Kil Hwan KIM, Ho Young CHANG, Ju Hyung HONG
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Patent number: 11379300Abstract: A storage device and a method for operating the storage device are provided. A storage device includes processing circuitry configured to write multi-stream data on a non-volatile memory; generate parity data of the multi-stream data and/or intermediate parity data upon which the parity data is based; store the parity data and/or the intermediate parity data in a first memory; and perform a data swap between the first memory and a second memory, wherein a number of slots of a plurality of slots in the first memory is based on a number of execution units of program buffering of the non-volatile memory.Type: GrantFiled: August 22, 2019Date of Patent: July 5, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Won Lee, Kil Hwan Kim
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Publication number: 20200293401Abstract: A storage device and a method for operating the storage device are provided. A storage device includes processing circuitry configured to write multi-stream data on a non-volatile memory; generate parity data of the multi-stream data and/or intermediate parity data upon which the parity data is based; store the parity data and/or the intermediate parity data in a first memory; and perform a data swap between the first memory and a second memory, wherein a number of slots of a plurality of slots in the first memory is based on a number of execution units of program buffering of the non-volatile memory.Type: ApplicationFiled: August 22, 2019Publication date: September 17, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Jong Won Lee, Kil Hwan Kim
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Patent number: 10275311Abstract: A data storage device is provided. The data storage device includes a storage medium configured to store data blocks included in a stripe set, and a controller connected to the storage medium and configured to, decode a first data block disposed in a column among the data blocks, during a read operation of the first data block, and read first group data blocks disposed in the column among the data blocks, based on a read failure of the first data block.Type: GrantFiled: December 15, 2016Date of Patent: April 30, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kil Hwan Kim, Kwang Ho Yoo, Eun Cheol Kim, Seok-Won Ahn, Chan Ho Yoon
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Publication number: 20170220410Abstract: A data storage device is provided. The data storage device includes a storage medium configured to store data blocks included in a stripe set, and a controller connected to the storage medium and configured to, decode a first data block disposed in a column among the data blocks, during a read operation of the first data block, and read first group data blocks disposed in the column among the data blocks, based on a read failure of the first data block.Type: ApplicationFiled: December 15, 2016Publication date: August 3, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kil Hwan KIM, Kwang Ho YOO, Eun Cheol KIM, Seok-Won AHN, Chan Ho YOON
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Patent number: 9048975Abstract: A method for detecting soft-decisions in a 2×2 MIMO system includes detecting all candidate symbol vector sets S in which there exist all values of a real part and an imaginary part, and calculating a log-likelihood ratio (LLR) with respect to the candidate symbol vector sets S from LLR ? ( b k i ) = min s ? S ? ? i , k - ? ED ? ( s ) 2 ? ? n 2 - min s ? S ? ? i , k + ? ED ? ( s ) 2 ? ? n 2 .Type: GrantFiled: March 14, 2014Date of Patent: June 2, 2015Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Ji-Hun Koo, Jang-Yong Park, Kil-Hwan Kim, Jae-Seok Kim
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Patent number: 8917801Abstract: A method of demodulating a modified dual carrier modulation (MDCM) signal using hard decision includes generating real symbol vector candidates and imaginary symbol vector candidates which correspond to an MDCM signal pair; calculating a first norm between a real part of the MDCM signal pair and each of the real symbol vector candidates and determining as a real symbol vector a real symbol vector candidate that has the minimum first norm among the real symbol vector candidates; and calculating a second norm between an imaginary part of the MDCM signal pair and each of the imaginary symbol vector candidates and determining as an imaginary symbol vector an imaginary symbol vector candidate that has the minimum second norm among the imaginary symbol vector candidates.Type: GrantFiled: October 4, 2012Date of Patent: December 23, 2014Assignees: Samsung Electronics Co., Ltd., Yonsei University Office of Research AffairsInventors: Ji Hun Koo, Kil Hwan Kim, Jang Yong Park, Jae Seok Kim
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Publication number: 20140270010Abstract: A method for detecting soft-decisions in a 2×2 MIMO system includes detecting all candidate symbol vector sets S in which there exist all values of a real part and an imaginary part, and calculating a log-likelihood ratio (LLR) with respect to the candidate symbol vector sets S from LLR ? ( b k i ) = min s ? S ? ? i , k - ? ED ? ( s ) 2 ? ? n 2 - min s ? S ? ? i , k + ? ED ? ( s ) 2 ? ? n 2 .Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: JI-HUN KOO, JANG-YONG PARK, KIL-HWAN KIM, JAE-SEOK KIM
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Patent number: 8681901Abstract: A Spatial Multiplexing Multiple Input Multiple Output (SM-MIMO) communication system, which generates Q and R matrices through QR decomposing a channel matrix in an array order corresponding to an order of transmission antennas of a signal transmission device, determines a detection order of transmission symbols included in a transmission symbol vector, QR decomposes a reception signal vector and generates the QR decomposed reception signal vector as a transformed reception signal vector, substitutes all of transmittable candidate symbols for a transmission symbol corresponding to a first detection order among the transmission symbols and sequentially removes interference in the transformed reception signal vector, detects candidate symbols of transmission symbols corresponding to a remaining detection order from the interference-removed transformed reception signal vector, combines the detected candidate symbols, detects candidate symbol vectors, and calculates Log-Likelihood Ratio values of bits included inType: GrantFiled: January 28, 2011Date of Patent: March 25, 2014Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Joo-Yeol Yang, Jae-Seok Kim, In-Hyoung Kim, Yun-Ho Jung, Hae-Dong Yeon, Kil-Hwan Kim, Mi-Suk Cho
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Publication number: 20110188615Abstract: A Spatial Multiplexing Multiple Input Multiple Output (SM-MIMO) communication system, which generates a Q matrix and an R matrix through QR decomposing a channel matrix in an array order corresponding to an order of transmission antennas of a signal transmission device, determines a detection order of transmission symbols included in a transmission symbol vector, QR decomposes a reception signal vector and generates the QR decomposed reception signal vector as a transformed reception signal vector, substitutes all of transmittable candidate symbols for a transmission symbol corresponding to a first detection order among the transmission symbols and sequentially removes interference in the transformed reception signal vector, detects candidate symbols of transmission symbols corresponding to a remaining detection order from the interference-removed transformed reception signal vector, combines the detected candidate symbols, detects candidate symbol vectors, and calculates Log-Likelihood Ratio values of bits iType: ApplicationFiled: January 28, 2011Publication date: August 4, 2011Applicants: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITYInventors: Joo-Yeol Yang, Jae-Seok Kim, In-Hyoung Kim, Yun-Ho Jung, Hae-Dong Yeon, Kil-Hwan Kim, Mi-Suk Cho