公开(公告)号：US20120094191A1

公开(公告)日：2012-04-19

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: H01M10/056 ,  H01M4/62 ,  H01M10/052

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：US07733971B2

公开(公告)日：2010-06-08

申请号：US11606353

申请日：2006-11-30

Applicant: Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

Inventor： Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

IPC: H04K1/10

CPC classification number: H04L27/266 ,  H04L27/2659 ,  H04L27/2675 ,  H04L27/2686

Abstract: An apparatus and method for recovering a carrier frequency of a received signal using a predefined symbol in an OFDM system is provided. A maximum value detector detects at least three values and their corresponding offsets in descending order among auto-correlation values calculated within a specific frequency offset range between a received signal and a predefined symbol. A frequency offset corrector compares a ratio of a first auto-correlation value to a second auto-correlation value with a predetermined first threshold, determines whether first and second frequency offsets corresponding to the first and second auto-correlation values are adjacent to each other if the ratio of the auto-correlation values is less than the first threshold, and determines an initial carrier frequency offset using a difference between the first frequency offset and a frequency offset correction value determined according to system, if the first and second frequency offsets are adjacent to each other and a ratio of the second auto-correlation value and a third auto-correlation value is greater than a predetermined second threshold.

Abstract translation: 提供了一种用于在OFDM系统中使用预定符号来恢复接收信号的载波频率的装置和方法。 最大值检测器在接收信号和预定义符号之间的特定频率偏移范围内计算的自相关值之中以降序检测至少三个值及其相应的偏移。 频率偏移校正器将第一自相关值与第二自相关值的比率与预定的第一阈值进行比较，确定与第一和第二自相关值对应的第一和第二频率偏移是否彼此相邻如果 所述自相关值的比率小于所述第一阈值，并且如果所述第一和第二频率偏移相邻，则使用根据系统确定的所述第一频率偏移和频率偏移校正值之间的差来确定初始载波频率偏移 并且第二自相关值和第三自相关值的比率大于预定的第二阈值。

公开(公告)号：US20070133391A1

公开(公告)日：2007-06-14

申请号：US11605484

申请日：2006-11-29

Applicant: Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

Inventor： Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

IPC: H04J11/00 ,  H04J1/00

CPC classification number: H04L27/2675 ,  H04L27/2659 ,  H04L27/2672 ,  H04L27/2684 ,  H04L27/2688

Abstract: An apparatus and method for carrier frequency synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) system are provided for correcting an initial carrier frequency offset in the OFDM system. A metric generator for frequency estimation performs a first accumulation process for a value computed by multiplying a Phase Reference Symbol (PRS) generated from a reception stage by a Fast Fourier Transform (FFT) output signal for an OFDM symbol in a PRS position within a frame, acquires a differential symbol from a product of adjacent FFT output symbols, performs a second accumulation process for a real part extracted from the differential symbol, and outputs a metric value for the frequency estimation. A maximal value-related index generator compares metric values for initial frequency estimation within a predetermined frequency offset estimation range, and selects and outputs a maximal metric value as a frequency offset estimate.

Abstract translation: 提供了一种用于正交频分复用（OFDM）系统中的载波频率同步的装置和方法，用于校正OFDM系统中的初始载波频率偏移。 用于频率估计的度量发生器对通过将从接收级产生的相位参考符号（PRS）乘以帧内的PRS位置中的OFDM符号的快速傅立叶变换（FFT）输出信号而计算的值进行第一累积处理 从相邻FFT输出符号的乘积获取差分符号，对从差分符号提取的实部执行第二累积处理，并输出用于频率估计的度量值。 最大值相关索引发生器将预定频率偏移估计范围内的初始频率估计的度量值进行比较，并且选择并输出最大度量值作为频率偏移估计。

公开(公告)号：US20060039318A1

公开(公告)日：2006-02-23

申请号：US11202091

申请日：2005-08-12

Applicant: Hyun-Seok Oh ,  Kwang-Man Ok ,  Sang-Hyo Kim ,  Min-Goo Kim ,  Su-Jin Yoon

Inventor： Hyun-Seok Oh ,  Kwang-Man Ok ,  Sang-Hyo Kim ,  Min-Goo Kim ,  Su-Jin Yoon

IPC: H04Q7/00

CPC classification number: H04W72/048 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0082 ,  H04L5/0087 ,  H04L5/026 ,  H04W64/006 ,  H04W72/0453

Abstract: An apparatus and method for allocating a frequency resource to a user equipment (UE) in an orthogonal frequency division multiplexing (OFDM) mobile communication system. A base station receives feedback information including at least mobility information from the UE, and determines from the mobility information whether the UE belongs to a fast group or a slow group. The base station allocates a frequency resource for the UE according to an open-loop solution if the UE belongs to the fast group, allocates a frequency resource for the UE according to a closed-loop solution if the UE belongs to the slow group, and transmits data for the UE using the allocated frequency resource.

Abstract translation: 一种用于在正交频分复用（OFDM）移动通信系统中向用户设备（UE）分配频率资源的装置和方法。 基站从UE接收至少包括移动性信息的反馈信息，并根据移动性信息确定UE是属于快速组还是慢组。 如果UE属于快速组，则基站根据开环方案为UE分配频率资源，如果UE属于慢速组，则根据闭环解决方案为UE分配频率资源;以及 使用分配的频率资源发送UE的数据。

公开(公告)号：US08877375B2

公开(公告)日：2014-11-04

申请号：US13356826

申请日：2012-01-24

Applicant: Kwang-Soo Kim ,  Su-Jin Yoon ,  Joong-Woo Nam

Inventor： Kwang-Soo Kim ,  Su-Jin Yoon ,  Joong-Woo Nam

IPC: H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583

CPC classification number: H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/021

Abstract: An aqueous active material composition, an electrode, and a rechargeable lithium battery including the same, the aqueous active material composition including an active material; a binder; and a water-soluble cellulose mixture, wherein the water-soluble cellulose mixture includes a first cellulose compound having a degree of substitution of about 0.5 to about 0.9 and a second cellulose compound having a degree of substitution of about 1.1 to about 1.5.

Abstract translation: 一种水性活性物质组合物，电极和包含其的可再充电锂电池，所述水性活性物质组合物包含活性物质; 粘合剂 和水溶性纤维素混合物，其中所述水溶性纤维素混合物包括取代度为约0.5至约0.9的第一纤维素化合物和取代度为约1.1至约1.5的第二纤维素化合物。

公开(公告)号：US20120244292A1

公开(公告)日：2012-09-27

申请号：US13492128

申请日：2012-06-08

Applicant: Joo-Sung Lee ,  Jong-Hun Kim ,  Pil-Kyu Park ,  Jang-Hyuk Hong ,  Byoung-Jin Shin ,  Byeong-Gyu Cho ,  Sun-Mi Jin ,  In-Chul Kim ,  Su-Jin Yoon

Inventor： Joo-Sung Lee ,  Jong-Hun Kim ,  Pil-Kyu Park ,  Jang-Hyuk Hong ,  Byoung-Jin Shin ,  Byeong-Gyu Cho ,  Sun-Mi Jin ,  In-Chul Kim ,  Su-Jin Yoon

IPC: H01M4/04 ,  B05D3/02

CPC classification number: H01M10/0525 ,  C23C18/1212 ,  C23C18/1216 ,  C23C18/122 ,  C23C18/1254 ,  C23C18/1295 ,  H01G11/24 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01M2/1613 ,  H01M2/1673 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/139 ,  Y02E60/13

Abstract: A method for manufacturing an electrode may include (S1) preparing a sol solution containing a metal alkoxide compound, and (S2) forming a porous non-woven coating layer of an inorganic fiber by electroemitting the sol solution onto an outer surface of an electrode active material layer formed on at least one surface of a current collector. The porous non-woven coating layer formed on the outer surface of the electrode active material layer may be made from an inorganic fiber having excellent thermal stability. When an electrochemical device is overheated, the porous non-woven coating layer may contribute to suppression of a short circuit between a cathode and an anode and performance improvement of an electrochemical device due to uniform distribution of pores.

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：US07693039B2

公开(公告)日：2010-04-06

申请号：US11605484

申请日：2006-11-29

Applicant: Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

Inventor： Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

IPC: H04J1/00 ,  H04L7/00

CPC classification number: H04L27/2675 ,  H04L27/2659 ,  H04L27/2672 ,  H04L27/2684 ,  H04L27/2688

Abstract: An apparatus and method for carrier frequency synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) system are provided for correcting an initial carrier frequency offset in the OFDM system. A metric generator for frequency estimation performs a first accumulation process for a value computed by multiplying a Phase Reference Symbol (PRS) generated from a reception stage by a Fast Fourier Transform (FFT) output signal for an OFDM symbol in a PRS position within a frame, acquires a differential symbol from a product of adjacent FFT output symbols, performs a second accumulation process for a real part extracted from the differential symbol, and outputs a metric value for the frequency estimation. A maximal value-related index generator compares metric values for initial frequency estimation within a predetermined frequency offset estimation range, and selects and outputs a maximal metric value as a frequency offset estimate.

Abstract translation: 提供了一种用于正交频分复用（OFDM）系统中的载波频率同步的装置和方法，用于校正OFDM系统中的初始载波频率偏移。 用于频率估计的度量发生器对通过将从接收级产生的相位参考符号（PRS）乘以帧内的PRS位置中的OFDM符号的快速傅立叶变换（FFT）输出信号而计算的值进行第一累积处理 从相邻FFT输出符号的乘积获取差分符号，对从差分符号提取的实部执行第二累积处理，并输出用于频率估计的度量值。 最大值相关索引发生器将预定频率偏移估计范围内的初始频率估计的度量值进行比较，并且选择并输出最大度量值作为频率偏移估计。

公开(公告)号：US07688149B2

公开(公告)日：2010-03-30

申请号：US11453852

申请日：2006-06-16

Applicant: Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

Inventor： Hee-Jin Roh ,  Su-Jin Yoon ,  Min-Goo Kim

IPC: H03L7/093

CPC classification number: H03L7/085 ,  G01R25/005 ,  H04L7/033

Abstract: A Phase Locked Loop (PLL) is provided for improving acquisition performance in an acquisition state, while preventing performance degradation in a steady state under a low SNR environment, during phase detection, a phase detecting method for the PLL, and a receiver using the same. The PLL determines a period to which an input signal belongs according to the input signal and a feedback signal, outputs an error signal corresponding to the input signal by using a formula (or algorithm) set for the determined period, oscillates a predetermined frequency signal according to the error signal, and feeds back the oscillated signal.

Abstract translation: 提供锁相环（PLL），用于在采集状态下改善采集性能，同时在相位检测期间防止在低SNR环境下的稳定状态下的性能下降，PLL的相位检测方法和使用该锁相环的接收机 。 PLL根据输入信号和反馈信号确定输入信号所属的周期，通过使用为所确定的周期设置的公式（或算法）输出与输入信号相对应的误差信号，根据 到错误信号，并反馈振荡的信号。

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。