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公开(公告)号:US11601205B2
公开(公告)日:2023-03-07
申请号:US16064750
申请日:2016-11-08
Inventor: Hak-Lim Ko , Yong-Kap Cho , Tae-Ho Im
IPC: H04B11/00 , H04B13/02 , H04B17/318 , H04B17/27 , H04W4/02 , H04L67/12 , H04B17/327 , H04W4/38 , G01S11/14 , H04W72/0453
Abstract: The present invention relates to an underwater communication method capable of communicating with a plurality of sensor nodes within a limited frequency band. Underwater information communication of the present invention allocates an appropriate frequency to each sensor node according to the distance between a central node and the plurality of sensor nodes, and then, controls underwater communication between the central node and the plurality of sensor nodes using the allocated frequency. By virtue of such control, the present invention prevents the occurrence of an unusable sensor node which cannot smoothly perform underwater communication when the allocated frequency is unreasonable. Therefore, the present invention has the effect of enabling efficient underwater communication between a plurality of sensor nodes and a central node.
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公开(公告)号:US20220174082A1
公开(公告)日:2022-06-02
申请号:US17393567
申请日:2021-08-04
Inventor: Tae Jin LEE , Chan Woong HWANG , Hyo Sik KIM
Abstract: A method for detecting and classifying a domain generation algorithm (DGA) generation domain according to an embodiment of the present disclosure includes entering a domain address expressed as a vector of sequence numbers in a TextCNN, and replacing the vector with a one-hot vector corresponding to sequence number vector elements to express image representation.
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公开(公告)号:US20210342718A1
公开(公告)日:2021-11-04
申请号:US17245435
申请日:2021-04-30
Inventor: Sung Bum PARK , Suehyun CHANG , Geun Jin AHN
Abstract: A search method using an artificial intelligence based information retrieval model and a method for training the artificial intelligence based information retrieval model used for the method are provided.
In the method, even if there is no labeled data and only a corpus exists, the artificial intelligence based information retrieval model can be trained using the weak-supervision methodology. Search can be performed by dividing documents into passages having short lengths. Compared to an information retrieval model based on unsupervised learning, improved search results are provided.-
公开(公告)号:US11012989B2
公开(公告)日:2021-05-18
申请号:US16488100
申请日:2018-01-12
Inventor: Hak Lim Ko , Yong Ho Cho , Tae Ho Im
Abstract: The present invention relates to underwater communication and, more particularly to a signal transmission method and device which configure and transmit physical channel information such that low-power control is performed in underwater communication. The present invention configures the physical channel information such that a reception node side can check through a combination of preambles whether a signal is provided to itself, when forward direction communication is performed in a centralized underwater communication network. Therefore, the present invention performs the control such that only a relevant reception node requiring data reception performs a demodulation operation, without requiring all reception nodes to always perform demodulation in a forward direction communication process. Through this process, many reception nodes do not perform unnecessary demodulation operations in the forward direction communication process, thereby providing an effect of preventing unnecessary power consumption.
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公开(公告)号:US20210085588A1
公开(公告)日:2021-03-25
申请号:US16635423
申请日:2018-09-11
Inventor: Hwan-Myung LEE , Dae-ll HWANG , Do-Yoon KIM , Soo-Min PARK , Ha-Bin KIM
Abstract: Disclosed are a pharmaceutical composition and a beauty-purposed pharmaceutical composition for prevention or treatment of neuromuscular disease, the composition including a combination of Erigeron annuus flower-based essential oil and Botox. Erigeron annuus flower-based essential oil inhibits t-SNARE protein and v-SNARE protein expression in neurons to inhibit the formation of SNARE protein complexes. Erigeron annuus flower-based essential oil inhibits the regeneration of t-SNARE protein and v-SNARE protein degraded by Botox to inhibit neurotransmitter release. Accordingly, an efficacy duration of Botox may be extended. Thus, Erigeron annuus flower-based essential oil may be usefully used in combination with Botox as Botox adjuvant for the prevention and treatment of neuromuscular disease or for beauty.
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公开(公告)号:US09156111B2
公开(公告)日:2015-10-13
申请号:US14558089
申请日:2014-12-02
Applicant: MK ELECTRON CO., LTD. , HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION , KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY , KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY , KOREA ELECTRONICS TECHNOLOGY INSTITUTE
Inventor: Sung Jae Hong , Keun Soo Kim , Chang Woo Lee , Jung Hwan Bang , Yong Ho Ko , Hyuck Mo Lee , Jae Won Chang , Ja Hyun Koo , Jeong Tak Moon , Young Woo Lee , Won Sik Hong , Hui Joong Kim , Jae Hong Lee
CPC classification number: B23K35/262 , B23K1/0016 , B23K35/025 , B23K2101/40 , B23K2101/42 , H01L24/13 , H01L24/16 , H01L24/17 , H01L2224/13111 , H01L2224/13147 , H01L2224/16225 , H01L2224/16227 , H01L2224/81191 , H01L2224/81815 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/01029 , H01L2924/01032 , H01L2924/01046 , H01L2924/0105 , H01L2924/01083 , H01L2924/014 , H01L2924/15747 , H01L2924/00
Abstract: Provided are a lead-free solder, a solder paste, and a semiconductor device, and more particularly, a lead-free solder that includes Cu in a range from about 0.1 wt % to about 0.8 wt %, Pd in a range from about 0.001 wt % to about 0.1 wt %, Al in a range from about 0.001 wt % to about 0.1 wt %, Si in a range from about 0.001 wt % to about 0.1 wt %, and Sn and inevitable impurities as remainder, a solder paste and a semiconductor device including the lead-free solder. The lead-free solder and the solder paste are environment-friendly and have a high high-temperature stability and high reliability.
Abstract translation: 提供了一种无铅焊料,焊膏和半导体器件,更具体地,包括在约0.1重量%至约0.8重量%范围内的Cu的无铅焊料,Pd在约0.001 重量%至约0.1重量%,Al在约0.001重量%至约0.1重量%的范围内,Si在约0.001重量%至约0.1重量%的范围内,Sn和不可避免的杂质作为余量,焊膏和 包括无铅焊料的半导体器件。 无铅焊料和焊膏环保,具有高温稳定性和高可靠性。
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27.
公开(公告)号:US20150151386A1
公开(公告)日:2015-06-04
申请号:US14558089
申请日:2014-12-02
Applicant: MK ELECTRON CO., LTD. , HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION , KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY , KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY , KOREA ELECTRONICS TECHNOLOGY INSTITUTE
Inventor: Sung Jae HONG , Keun Soo KIM , Chang Woo LEE , Jung Hwan BANG , Yong Ho KO , Hyuck Mo LEE , Jae Won CHANG , Ja Hyun KOO , Jeong Tak MOON , Young Woo LEE , Won Sik HONG , Hui Joong KIM , Jae Hong LEE
CPC classification number: B23K35/262 , B23K1/0016 , B23K35/025 , B23K2101/40 , B23K2101/42 , H01L24/13 , H01L24/16 , H01L24/17 , H01L2224/13111 , H01L2224/13147 , H01L2224/16225 , H01L2224/16227 , H01L2224/81191 , H01L2224/81815 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/01029 , H01L2924/01032 , H01L2924/01046 , H01L2924/0105 , H01L2924/01083 , H01L2924/014 , H01L2924/15747 , H01L2924/00
Abstract: Provided are a lead-free solder, a solder paste, and a semiconductor device, and more particularly, a lead-free solder that includes Cu in a range from about 0.1 wt % to about 0.8 wt %, Pd in a range from about 0.001 wt % to about 0.1 wt %, Al in a range from about 0.001 wt % to about 0.1 wt %, Si in a range from about 0.001 wt % to about 0.1 wt %, and Sn and inevitable impurities as remainder, a solder paste and a semiconductor device including the lead-free solder. The lead-free solder and the solder paste are environment-friendly and have a high high-temperature stability and high reliability.
Abstract translation: 提供了一种无铅焊料,焊膏和半导体器件,更具体地,包括在约0.1重量%至约0.8重量%范围内的Cu的无铅焊料,Pd在约0.001 重量%至约0.1重量%,Al在约0.001重量%至约0.1重量%的范围内,Si在约0.001重量%至约0.1重量%的范围内,Sn和不可避免的杂质作为余量,焊膏和 包括无铅焊料的半导体器件。 无铅焊料和焊膏环保,具有高温稳定性和高可靠性。
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公开(公告)号:US20250124844A1
公开(公告)日:2025-04-17
申请号:US18628919
申请日:2024-04-08
Inventor: Byung-Seong BAE , Hyuck-Su LEE , Seo-Jin KANG
IPC: G09G3/20
Abstract: The present invention relates to a scan drive circuit and, more specifically, to a scan drive circuit that is insensitive to changes in the characteristics of transistors, enabling stable operation even when such changes occur within a certain range. Accordingly, the scan drive circuit provides the advantage of high yield when applied not only to conventional rigid substrates but also to flexible or stretchable substrates.
According to the present invention, a scan drive circuit is provided that operates normally regardless of whether the transistor exhibits enhancement-type or depletion-type characteristics, thereby eliminating the need to modify the circuit or employ complex designs based on the characteristics of the transistors.-
29.
公开(公告)号:US20250076447A1
公开(公告)日:2025-03-06
申请号:US18370727
申请日:2023-09-20
Inventor: Hak-Lim Ko , Ho-Jun Lee
Abstract: A transmitting device location estimation device and a transmitting device location estimation method for estimating the location of a transmitting device under water are disclosed. A transmitting device location estimation device, in a transmitting device location estimation device for estimating the location of a transmitting device under water, is characterized by comprising: a distance location estimation unit that estimates the distance and location of the transmitting device based on the time taken to receive the transmission signal transmitted by the transmitting device and the speed of the transmission signal; a direction estimation unit that estimates the direction of the transmitting device; and an estimated location confirmation unit that confirms the estimated location of the transmitting device based on the estimated distance and location of the transmitting device and the estimated direction of the transmitting device.
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30.
公开(公告)号:US20250021594A1
公开(公告)日:2025-01-16
申请号:US18901236
申请日:2024-09-30
Inventor: Sung-Bum PARK , Suehyun CHANG
IPC: G06F16/383 , G06F16/338
Abstract: A method is presented for enhancing search results by segmenting documents into smaller passages and utilizing those passages as the search unit. This method integrates the passage rankings from two search models to produce a new document ranking and arranges the documents accordingly. The ranking of document is also rearranged based on the proportion of passages taken from the same document versus the total number of passages in that document. The final search ranking system combines document-level and passage-level search rankings to rank documents. This method ensures that when conducting a passage search, the search results consider the general relevance of the entire document, which leads to better performance compared to searching only by document-level or passage-level searches.
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