公开(公告)号：US07945003B2

公开(公告)日：2011-05-17

申请号：US11706151

申请日：2007-02-14

Applicant: Yun-Ju Kwon ,  Su-Jin Yoon

Inventor： Yun-Ju Kwon ,  Su-Jin Yoon

IPC: H04L27/06

CPC classification number: H04L27/2675 ,  H04L27/2659 ,  H04L27/2672

Abstract: Disclosed is a method for detecting a frequency offset in an Orthogonal Frequency Division Multiplexing (OFDM) system. The method includes determining a first frequency index based on autocorrelation values calculated according to a frequency index for a pilot signal of a received symbol, accumulating the autocorrelation values calculated according to the frequency index for the pilot signal of the received symbol depending on a symbol count, and determining a second frequency index based on the accumulated autocorrelation values, and determining at least one of the first frequency index and the second frequency as a frequency offset according to channel quality.

Abstract translation: 公开了一种用于检测正交频分复用（OFDM）系统中的频率偏移的方法。 该方法包括基于根据接收符号的导频信号的频率索引计算的自相关值来确定第一频率索引，根据符号计数累积根据接收符号的导频信号的频率索引计算的自相关值 并且基于所述累加的自相关值来确定第二频率索引，并且根据信道质量将所述第一频率索引和所述第二频率中的至少一个确定为频率偏移。

公开(公告)号：US20080095249A1

公开(公告)日：2008-04-24

申请号：US11645743

申请日：2006-12-27

Applicant: Su-Jin Yoon ,  Yun-Ju Kwon ,  Hee-Jin Roh

Inventor： Su-Jin Yoon ,  Yun-Ju Kwon ,  Hee-Jin Roh

IPC: H04K1/10

CPC classification number: H04L27/2675 ,  H04L27/2659 ,  H04L27/2686

Abstract: An apparatus and method for estimating a coarse carrier frequency offset in an OFDM receiver are provided, in which an Fast Fourier Transform (FFT) unit performs FFT for a received signal over one symbol duration and outputs a previously known signal included in the FFT signal, a correlation value calculator evaluates autocorrelation values of the previously known signal for plural candidate offsets, an accumulator accumulates the autocorrelation values to the autocorrelation values evaluated over a previous symbol duration, and a maximum value selector selects first and second maximum values of the autocorrelation values. A threshold tester compares a ratio between the first and second maximum values with a predetermined threshold, and determines a candidate offset corresponding to the first maximum value as the coarse carrier frequency offset if the ratio is less than the threshold. Otherwise, the threshold tester instructs the FFT unit to receive a signal over a next symbol duration.

Abstract translation: 提供了一种用于估计OFDM接收机中的粗载波频率偏移的装置和方法，其中快速傅立叶变换（FFT）单元在一个符号持续时间内对接收到的信号执行FFT，并输出包括在FFT信号中的先前已知的信号， 相关值计算器对多个候选偏移的先前已知信号的自相关值进行评估，累加器将自相关值累积到在先前符号持续时间内估计的自相关值，最大值选择器选择自相关值的第一和第二最大值。 阈值测试器将第一和第二最大值之间的比率与预定阈值进行比较，并且如果该比率小于阈值，则将与第一最大值相对应的候选偏移量确定为粗略载波频率偏移。 否则，阈值测试器指示FFT单元在下一个符号持续时间内接收信号。

公开(公告)号：US20070206692A1

公开(公告)日：2007-09-06

申请号：US11706151

申请日：2007-02-14

Applicant: Yun-Ju Kwon ,  Su-Jin Yoon

Inventor： Yun-Ju Kwon ,  Su-Jin Yoon

IPC: H04K1/10

CPC classification number: H04L27/2675 ,  H04L27/2659 ,  H04L27/2672

Abstract: Disclosed is a method for detecting a frequency offset in an Orthogonal Frequency Division Multiplexing (OFDM) system. The method includes determining a first frequency index based on autocorrelation values calculated according to a frequency index for a pilot signal of a received symbol, accumulating the autocorrelation values calculated according to the frequency index for the pilot signal of the received symbol depending on a symbol count, and determining a second frequency index based on the accumulated autocorrelation values, and determining at least one of the first frequency index and the second frequency as a frequency offset according to channel quality.

Abstract translation: 公开了一种用于检测正交频分复用（OFDM）系统中的频率偏移的方法。 该方法包括基于根据接收符号的导频信号的频率索引计算的自相关值来确定第一频率索引，根据符号计数累积根据接收符号的导频信号的频率索引计算的自相关值 并且基于所述累加的自相关值来确定第二频率索引，并且根据信道质量将所述第一频率索引和所述第二频率中的至少一个确定为频率偏移。

公开(公告)号：US20120088161A1

公开(公告)日：2012-04-12

申请号：US13201897

申请日：2010-02-26

Applicant: Su-Jin Yoon ,  Sung-Hoon Yu ,  Jong-Ho Jeon

Inventor： Su-Jin Yoon ,  Sung-Hoon Yu ,  Jong-Ho Jeon

IPC: H01M10/0564 ,  H01M4/62 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M4/622 ,  H01M10/052

Abstract: Disclosed is a non-aqueous electrolyte solution for a lithium secondary battery. The non-aqueous electrolyte solution includes an electrolyte salt and an organic solvent. The non-aqueous electrolyte solution further includes (a) a polyfunctional compound including two or more functional groups, at least one of which is an acryl group, and (b) an anion receptor selected from the group consisting of a borane compound, a borate compound and a mixture thereof. Further disclosed is a lithium secondary battery including the non-aqueous electrolyte solution. A stable solid electrolyte interface (SEI) film is formed on an anode of the lithium secondary battery. The amount of LiF in the SEI film is controlled, achieving improved cycle life characteristics of the battery.

Abstract translation: 公开了一种用于锂二次电池的非水电解质溶液。 非水电解质溶液包括电解质盐和有机溶剂。 非水电解质溶液还包含（a）包含两个或更多个官能团的多官能化合物，其中至少一个是丙烯酰基，和（b）选自硼烷化合物，硼酸盐的阴离子受体 化合物及其混合物。 还公开了包含非水电解质溶液的锂二次电池。 在锂二次电池的阳极上形成稳定的固体电解质界面（SEI）膜。 控制SEI膜中的LiF量，实现电池循环寿命的改善。

公开(公告)号：US20120034532A1

公开(公告)日：2012-02-09

申请号：US12740507

申请日：2010-04-29

Applicant: Soo-Jin Kim ,  Jeong-Ju Cho ,  Su-Jin Yoon ,  Yong-Joon Ha ,  Chul-Haeng Lee ,  Jeong-Hwan Koh

Inventor： Soo-Jin Kim ,  Jeong-Ju Cho ,  Su-Jin Yoon ,  Yong-Joon Ha ,  Chul-Haeng Lee ,  Jeong-Hwan Koh

IPC: H01M10/056

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M2300/0025

Abstract: A non-aqueous electrolyte solution for a lithium secondary battery comprises a lithium salt and an organic solvent. The non-aqueous electrolyte solution further comprises a specific siloxane compound and a sulfonate compound. This non-aqueous electrolyte solution solves the capacity degradation phenomenon, which appears in a lithium secondary battery using a non-aqueous electrolyte solution containing only a specific siloxane compound when the lithium secondary battery is used for a long time, so this non-aqueous electrolyte solution is especially useful for high-capacity batteries.

Abstract translation: 锂二次电池用非水电解液包含锂盐和有机溶剂。 非水电解质溶液还包含特定的硅氧烷化合物和磺酸盐化合物。 该非水电解液解决了当锂二次电池长时间使用时，使用仅含有特定硅氧烷化合物的非水电解液的锂二次电池中出现的容量降低现象，因此该非水电解质 解决方案对于大容量电池特别有用。

公开(公告)号：US20110229773A1

公开(公告)日：2011-09-22

申请号：US12447042

申请日：2007-10-19

Applicant: Jeong-Ju Cho ,  Ho-Chun Lee ,  Su-Jin Yoon ,  Soo-Min Park

Inventor： Jeong-Ju Cho ,  Ho-Chun Lee ,  Su-Jin Yoon ,  Soo-Min Park

IPC: H01M4/60 ,  H01M10/02

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0025 ,  Y02E60/122 ,  Y02T10/7011

Abstract: Disclosed is a non-aqueous electrolyte comprising: an acrylate compound; a sulfinyl group-containing compound; an organic solvent; and an electrolyte salt. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of an acrylate compound; and (ii) a reduced form of a sulfinyl group-containing compound. Further, disclosed is an electrochemical device comprising a cathode, an anode and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the aforementioned non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the aforementioned electrode.

Abstract translation: 公开了一种非水电解质，其包含：丙烯酸酯化合物; 含亚硫酰基的化合物; 有机溶剂; 和电解质盐。 此外，公开了一种电极，其包括在其表面上部分或全部形成的涂层，所述涂层包含：（i）还原形式的丙烯酸酯化合物; 和（ii）还原形式的含亚硫酰基的化合物。 此外，公开了包含阴极，阳极和非水电解质的电化学装置，其中（i）非水电解质是上述非水电解质; 和/或（ii）阴极和/或阳极是上述电极。

公开(公告)号：US08986892B2

公开(公告)日：2015-03-24

申请号：US13243081

申请日：2011-09-23

Applicant: Su-Jin Yoon ,  Pil-Kyu Park ,  Jong-Hun Kim ,  Jin-Nyoung Yoo ,  In-Chul Kim ,  Sang-Young Lee

Inventor： Su-Jin Yoon ,  Pil-Kyu Park ,  Jong-Hun Kim ,  Jin-Nyoung Yoo ,  In-Chul Kim ,  Sang-Young Lee

IPC: H01M2/16 ,  H01M10/052

CPC classification number: H01M2/1686 ,  H01M2/145 ,  H01M2/1613 ,  H01M2/162 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1666 ,  H01M10/052 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

Abstract: A separator includes a non-woven fabric substrate having pores, fine thermoplastic powder located inside the pores of the non-woven fabric substrate, and a porous coating layer disposed on at least one surface of the non-woven fabric substrate. The fine thermoplastic powder has an average diameter smaller than that of the pores and a melting point lower than the melting or decomposition point of the non-woven fabric substrate. The porous coating layer includes a mixture of inorganic particles and a binder polymer whose melting point is higher than the melting or decomposition point of the fine thermoplastic powder. In the porous coating layer, the inorganic particles are fixedly connected to each other by the binder polymer and the pores are formed by interstitial volumes between the inorganic particles. Previous filling of the large pores of the non-woven fabric substrate with the fine thermoplastic powder makes the porous coating layer uniform.

Abstract translation: 隔膜包括具有孔的无纺布基材，位于无纺布基材的孔内的精细热塑性粉末，以及设置在无纺布基材的至少一个表面上的多孔涂层。 细的热塑性粉末的平均直径小于孔的直径，熔点低于无纺布基材的熔点或分解点。 多孔涂层包括无机颗粒和熔点高于细的热塑性粉末的熔点或分解点的粘合剂聚合物的混合物。 在多孔涂层中，无机颗粒通过粘合剂聚合物彼此固定连接，并且通过无机颗粒之间的间隙体积形成孔。 先前用细小的热塑性粉末填充无纺布基材的大孔，使多孔涂层均匀。

公开(公告)号：US08828611B2

公开(公告)日：2014-09-09

申请号：US12442601

申请日：2007-09-19

Applicant: Su-Jin Yoon ,  Jeong-Ju Cho ,  Ho-Chun Lee

Inventor： Su-Jin Yoon ,  Jeong-Ju Cho ,  Ho-Chun Lee

IPC: H01M6/18

CPC classification number: H01M4/628 ,  H01M4/131 ,  H01M4/583 ,  H01M10/052 ,  H01M10/0567 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0025 ,  Y02E60/122

Abstract: Disclosed is a non-aqueous electrolyte comprising: a first acrylate compound having one or two acryl groups; a second acrylate compound having three or more acryl groups; an electrolyte salt; and an organic solvent. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of a first acrylate compound having one or two acryl groups; and (ii) a reduced form of a second acrylate compound having three or more acryl groups. Further, disclosed in an electrochemical device comprising a cathode, an anode, a separator and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the above non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the above electrode.

Abstract translation: 公开了一种非水电解质，其包含：具有一个或两个丙烯酰基的第一丙烯酸酯化合物; 具有三个或更多个丙烯酰基的第二丙烯酸酯化合物; 电解质盐 和有机溶剂。 此外，公开了一种电极，其包括在其表面上部分或全部形成的涂层，所述涂层包含：（i）还原形式的具有一个或两个丙烯酰基的第一丙烯酸酯化合物; 和（ii）具有三个或更多个丙烯酰基的第二丙烯酸酯化合物的还原形式。 此外，在包括阴极，阳极，隔膜和非水电解质的电化学装置中公开，其中（i）非水电解质是上述非水电解质; 和/或（ii）阴极和/或阳极是上述电极。

公开(公告)号：US08691448B2

公开(公告)日：2014-04-08

申请号：US13203061

申请日：2010-02-26

Applicant: Su-Jin Yoon ,  Sung-Hoon Yu ,  Jong-Ho Jeon

Inventor： Su-Jin Yoon ,  Sung-Hoon Yu ,  Jong-Ho Jeon

IPC: H01M6/16

CPC classification number: H01M4/622 ,  H01M10/052

Abstract: Provided is a lithium secondary battery comprising an anode, a cathode and a non-aqueous electrolyte, wherein the anode includes an aqueous binder, and the non-aqueous electrolyte contains (a) a cyclic anhydride or a derivative thereof; and (b) any one anion receptor selected from the group consisting of a borane compound, a borate compound and mixtures thereof. According to the present invention, a stable SEI film is formed on the anode, and the life characteristics of the battery are improved by controlling the LiF content in the SEI film.

Abstract translation: 提供一种锂二次电池，其包含阳极，阴极和非水电解质，其中所述阳极包含水性粘合剂，所述非水电解质含有（a）环状酸酐或其衍生物; 和（b）任何一种选自硼烷化合物，硼酸盐化合物及其混合物的阴离子受体。 根据本发明，在阳极上形成稳定的SEI膜，通过控制SEI膜中的LiF含量来提高电池的寿命特性。

公开(公告)号：US08351550B2

公开(公告)日：2013-01-08

申请号：US12363484

申请日：2009-01-30

Applicant: Hee-Jin Roh ,  Jeoung-Gil Lee ,  Su-Jin Yoon ,  Hoon Kang ,  Chang-Hyun Baik ,  Jun-Kyu Kang ,  Hyung-Jin Choi ,  Se-Bin Im ,  Dae-Hong Lee

Inventor： Hee-Jin Roh ,  Jeoung-Gil Lee ,  Su-Jin Yoon ,  Hoon Kang ,  Chang-Hyun Baik ,  Jun-Kyu Kang ,  Hyung-Jin Choi ,  Se-Bin Im ,  Dae-Hong Lee

IPC: H03D1/00

CPC classification number: H04L27/2688 ,  H04L27/2659 ,  H04L27/2672 ,  H04L27/2675

Abstract: A correlation apparatus and method for frequency synchronization are provided. A frequency synchronization method of a receiver in a broadband wireless access communication system includes acquiring a highest correlation value by conducting a differential correlation of a variable interval between a received signal and a reference signal and performing a frequency synchronization according to the highest correlation value.

Abstract translation: 提供了一种用于频率同步的相关装置和方法。 宽带无线接入通信系统中的接收机的频率同步方法包括通过对接收信号和参考信号进行可变间隔的差分相关，并根据最高相关值进行频率同步来获取最高相关值。