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公开(公告)号:US12026109B2
公开(公告)日:2024-07-02
申请号:US17410115
申请日:2021-08-24
发明人: Sangwoo Kim
CPC分类号: G06F13/20 , G06F9/5016
摘要: A transaction accelerator may be connected between at least one host device and a bus, and a method of operating the transaction accelerator may include receiving a first transaction request from the at least one host device, transmitting the first transaction request to the bus, and transmitting a first transaction response corresponding to the first transaction request to the at least one host device, in response to the transmitting the first transaction request to the bus.
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公开(公告)号:US10467094B2
公开(公告)日:2019-11-05
申请号:US15429486
申请日:2017-02-10
发明人: Sangwoo Kim , Jungho Yun
摘要: A recovery method and apparatus for use in a redundant array of independent disks (RAID) storage device is provided that includes a plurality of nonvolatile memory devices. The recovery method includes: reading a data chunk, in which an uncorrectable error occurs, from the plurality of nonvolatile memory devices, selecting a plurality of sub-stripes including a parity and excluding the data chunk, and performing, in parallel, a first recovery operation of adjusting a read level to recover the data chunk and a second recovery operation of processing the plurality of sub-stripes to recover a sub-stripe including the data chunk. The parallel performance of the first and second recovery operations is completed according to an earlier completion of one of the first and second recovery operations.
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公开(公告)号:US20180041139A1
公开(公告)日:2018-02-08
申请号:US15584125
申请日:2017-05-02
发明人: Hyeonjin SHIN , Jeongho Cho , Hyungseok Kang , Han Kim , Sangwoo Kim , Seongsu Kim , Siuk Cheon
IPC分类号: H02N1/04
摘要: Example embodiments relate to an electrode structure, a triboelectric generator including the electrode structure, and a method of manufacturing the electrode structure. The electrode structure includes a flexible layer configured to be bendable by an external force and an electrode, at least some regions thereof being embedded in the flexible layer.
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公开(公告)号:US10938324B2
公开(公告)日:2021-03-02
申请号:US16579975
申请日:2019-09-24
发明人: Sangwoo Kim , Keun Young Lee , Seongsu Kim , Juhyuck Lee
摘要: Provided is an electrostatic energy harvester Including a lower electrode; a ferroelectric material layer which is disposed on the lower electrode and formed of a poled ferroelectric material; a friction-charged body which is adapted to be repeatedly contacted with and separated from the ferroelectric material layer and has an electric susceptibility different from an electric susceptibility of the ferroelectric material layer; and an upper electrode provided on the friction-charged body.
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公开(公告)号:US09941863B2
公开(公告)日:2018-04-10
申请号:US15090896
申请日:2016-04-05
发明人: Sangwoo Kim
CPC分类号: H03K3/012 , H03K3/0375
摘要: Provided is a power gating control circuit for stably controlling data restoring. The power gating control circuit includes a retention circuit and a non-retention circuit. The retention circuit includes a first flip-flop, which stores or restores data of the first flip-flop in a power gating mode. The non-retention circuit includes a second flip-flop and a third flip-flop. The power gating control circuit performs initialization of data of the second flip-flop and the third flip-flop in the power gating mode, and an initialization operation of the non-retention circuit is controlled to be performed before data of the retention circuit is restored.
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公开(公告)号:US09728661B2
公开(公告)日:2017-08-08
申请号:US14558384
申请日:2014-12-02
发明人: Hyeonjin Shin , Sangwoo Kim , Kyungsik Shin , Hye-Jung Park , Eunbi Cho
IPC分类号: H01L31/032 , H01L31/0224 , H01L31/04 , H01L31/08
CPC分类号: H01L31/032 , H01L31/022408 , H01L31/0324 , H01L31/04 , H01L31/08 , Y02E10/50
摘要: Example embodiments relate to optoelectronic devices. An optoelectronic device may include a photoactive layer between first and second electrodes, and a ferroelectric layer corresponding to at least one of the first and second electrodes. At least one of the first and second electrodes may include graphene. The photoactive layer may include a two-dimensional (2D) semiconductor. The optoelectronic device may further include a third electrode, and in this case, the ferroelectric layer may be between the second electrode and the third electrode. The second electrode, the ferroelectric layer, and the third electrode may constitute a nanogenerator.
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公开(公告)号:US20240340549A1
公开(公告)日:2024-10-10
申请号:US18523624
申请日:2023-11-29
发明人: Sangwoo Kim , Moo Young Kim , Yunhong Kim , Hyunjong Kim , Chanmin Park , Mira Lee
IPC分类号: H04N25/709 , H04N25/76
CPC分类号: H04N25/709 , H04N25/76
摘要: Disclosed is an image sensor device which includes a pixel that outputs a first pixel signal to a first column line during a first time period and outputs a second pixel signal to the first column line during a second time period, and a clamp circuit that outputs a first clamp signal to the first column line during the first time period. During the first time period, a voltage of the first column line is determined based on the first pixel signal and the first clamp signal. The pixel operates based on a first power supply voltage, and the clamp circuit operates based on a second power supply voltage lower than the first power supply voltage.
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公开(公告)号:US11923042B2
公开(公告)日:2024-03-05
申请号:US17581445
申请日:2022-01-21
发明人: Sangwoo Kim , Younghoon Son , Seongheon Yu , Joungyeal Kim , Chulung Kim
CPC分类号: G11C7/222 , G11C7/1069 , G11C7/1096 , G11C29/12015 , G11C29/46
摘要: An apparatus includes a host and a memory device connected to the host through a bus. The bus is used to communicate a data clock controlling data write timing during a write operation executed by the memory device and a read clock controlling data read timing during a read operation executed by the memory device. The memory device performs first duty cycle monitoring that monitors a duty cycle of the data clock, generates a first result, and provides a timing-adjusted data clock, performs second duty cycle monitoring that monitors a duty cycle of the read clock, generates a second result, and provides a timing-adjusted read clock, calculates an offset of the read clock based on the timing-adjusted data clock, the result and the second result, and corrects a duty error of the read clock using a read clock offset code derived from the offset of the read clock.
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公开(公告)号:US10110410B2
公开(公告)日:2018-10-23
申请号:US15025094
申请日:2014-09-25
发明人: Hyungju Nam , Sooyong Choi , Chanhong Kim , Moonchang Choi , Sangwoo Kim
摘要: The present invention relates to a transceiving method and apparatus that enable QAM signal transmission in a filter bank multi-carrier (FBMC) communication system and provides, in particular, a transceiving method and apparatus that enable quadrature amplitude modulation (QAM) signal transmission without intrinsic interference by separating filtering between a sub-carrier having an even index and a sub-carrier having an odd index, and superimposing and transmitting sub-carriers filtered by means of separation. The thus-rendered present invention is a transmission method in the FBMC communication system, the method comprising the steps of: dividing at least two QAM signals into a plurality of groups; performing filtering on each of the plurality of groups; and superimposing and transmitting the QAM signal in the plurality of groups filtered on a time axis. The present invention relates to a transmission method and apparatus, and a corresponding reception method and apparatus.
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公开(公告)号:US11887849B2
公开(公告)日:2024-01-30
申请号:US17012661
申请日:2020-09-04
发明人: Changhyun Kim , Sangwoo Kim , Kyung-Eun Byun , Hyeonjin Shin , Ahrum Sohn , Jaehwan Jung
CPC分类号: H01L21/02631 , C23C14/06 , C23C14/34 , C23C14/5806 , H01L21/02667 , H01L29/66969 , H01L21/02568 , H01L21/02592 , H01L21/02595
摘要: Disclosed herein are a method of forming a transition metal dichalcogenide thin film and a method of manufacturing a device including the same. The method of forming a transition metal dichalcogenide thin film includes: depositing a transition metal dichalcogenide thin film on a substrate; and heat-treating the deposited transition metal dichalcogenide thin film.
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