公开(公告)号：US07590914B2

公开(公告)日：2009-09-15

申请号：US11105922

申请日：2005-04-13

申请人： Sunghwan Kim ,  Yong-June Kim ,  Jong-Seon No ,  Sang-Hyun Lee ,  Yun-Hee Kim ,  Jae-Young Ahn

发明人： Sunghwan Kim ,  Yong-June Kim ,  Jong-Seon No ,  Sang-Hyun Lee ,  Yun-Hee Kim ,  Jae-Young Ahn

IPC分类号： H03M13/00

CPC分类号： H03M13/6356 ,  H03M13/1105 ,  H03M13/114 ,  H03M13/6362

摘要： Disclosed is a decoding apparatus for LDPC (Low-Density Parity-Check) codes when receiving data encoded with LDPC codes on a channel having consecutive output values, and a method thereof. The decoding method for LDPC codes uses sequential decoding and includes the following steps: (a) the nodes are divided according to a parity-check matrix into check nodes for a parity-check message and variable nodes for a bit message; (b) the check nodes are divided into a predetermined number of subsets; (c) the LDPC codeword of each subset for all the check nodes is sequentially decoded; (d) an output message is generated for verifying validity of the decoding result; and (e) the steps (b), (c), and (d) are iteratively performed by a predetermined number of iterations.

摘要翻译： 公开了一种在具有连续输出值的信道上接收用LDPC码编码的数据时的LDPC（低密度奇偶校验）码的解码装置及其方法。 LDPC码的解码方法使用顺序解码，包括以下步骤：（a）根据奇偶校验矩阵将节点划分成用于奇偶校验消息的校验节点和位消息的可变节点; （b）校验节点被划分成预定数量的子集; （c）所有校验节点的每个子集的LDPC码字被顺序解码; （d）生成用于验证解码结果的有效性的输出消息; 和（e）通过预定次数的迭代迭代地执行步骤（b），（c）和（d）。

公开(公告)号：US20090085191A1

公开(公告)日：2009-04-02

申请号：US12135532

申请日：2008-06-09

申请人： Khalil Najafi ,  Sang-Hyun Lee ,  Sang Woo Lee

发明人： Khalil Najafi ,  Sang-Hyun Lee ,  Sang Woo Lee

IPC分类号： H01L23/538 ,  H01L21/50

CPC分类号： B81B3/0018 ,  B81B7/0038 ,  B81B7/0058 ,  B81B7/0064 ,  B81C1/00134 ,  H01L2224/16225 ,  H01L2924/1461 ,  H01L2924/00

摘要： An environment-resistant module which provides both thermal and vibration isolation for a packaged micromachined or MEMS device is disclosed. A microplatform and a support structure for the microplatform provide the thermal and vibration isolation. The package is both hermetic and vacuum compatible and provides vertical feedthroughs for signal transfer. A micromachined or MEMS device transfer method is also disclosed that can handle a wide variety of individual micromachined or MEMS dies or wafers, in either a hybrid or integrated fashion. The module simultaneously provides both thermal and vibration isolation for the MEMS device using the microplatform and the support structure which may be fabricated from a thin glass wafer that is patterned to create crab-leg shaped suspension tethers or beams.

摘要翻译： 公开了一种为封装的微加工或MEMS器件提供热隔离和隔振的环境保护模块。 用于微平台的微平台和支撑结构提供热隔离和隔振。 该封装兼具密封性和真空性，并提供信号传输的垂直馈通。 还公开了微加工或MEMS器件转移方法，其可以以混合或集成的方式处理各种各样的微机械加工或MEMS管芯或晶片。 该模块同时提供使用微平台和支撑结构的MEMS器件的热隔离和隔振，该支撑结构可以由图案化以形成螃蟹腿形悬挂系绳或梁的薄玻璃晶片制造。

公开(公告)号：US20090020814A1

公开(公告)日：2009-01-22

申请号：US12013354

申请日：2008-01-11

申请人： Yong-Cheol Choi ,  Chang-Ki Jeon ,  Sang-Hyun Lee

发明人： Yong-Cheol Choi ,  Chang-Ki Jeon ,  Sang-Hyun Lee

IPC分类号： H01L29/78

CPC分类号： H01L29/0847 ,  H01L29/0634 ,  H01L29/0692 ,  H01L29/0878 ,  H01L29/402 ,  H01L29/41775 ,  H01L29/42368 ,  H01L29/7835

摘要： A high voltage semiconductor device includes a source region of a first conductivity type having an elongated projection with two sides and a rounded tip in a semiconductor substrate. A drain region of the first conductivity type is laterally spaced from the source region in the semiconductor substrate. A gate electrode extends along the projection of the source region on the semiconductor substrate between the source and drain regions. Top floating regions of a second conductivity type are disposed between the source and drain regions in the shape of arched stripes extending along the rounded tip of the projection of the source region. The top floating regions are laterally spaced from one another by regions of the first conductivity type to thereby form alternating P-N regions along the lateral dimension.

摘要翻译： 高电压半导体器件包括第一导电类型的源极区域，其具有两侧的细长突起和半导体衬底中的圆形尖端。 第一导电类型的漏极区域与半导体衬底中的源极区域横向间隔开。 栅电极沿着半导体衬底上的源极区域的源极和漏极区域的突出部分延伸。 第二导电类型的顶部浮动区域设置在沿着源极区域的投影的圆形尖端延伸的弓形条形状的源极和漏极区域之间。 顶部浮动区域通过第一导电类型的区域彼此横向间隔开，从而沿横向尺寸形成交替的P-N区域。

公开(公告)号：US07453959B2

公开(公告)日：2008-11-18

申请号：US11000290

申请日：2004-11-29

申请人： Yun-Hee Kim ,  Kwang-Soon Kim ,  Sang-Hyun Lee ,  Jae-Young Ahn

发明人： Yun-Hee Kim ,  Kwang-Soon Kim ,  Sang-Hyun Lee ,  Jae-Young Ahn

IPC分类号： H03K9/00 ,  H04L27/00 ,  H03M13/00

CPC分类号： H04L1/0045 ,  H03M13/11 ,  H03M13/2957 ,  H03M13/31 ,  H03M13/3723 ,  H03M13/455 ,  H03M13/612 ,  H04L25/067 ,  H04L27/2647

摘要： Disclosed is an apparatus and method for erasure detection and soft-decision decoding in a cellular system receiver. In the present invention, a complex channel gain and a noise variance of a received symbol from a cellular system transmitter are estimated, and an erasure symbol (a symbol with high power interference) is detected by comparing a threshold value according to the estimated complex channel gain or noise variance with power of the received symbol. Log-likelihood ratios corresponding to constituent bits of the detected erasure symbols are allowed to be 0, and the log-likelihood ratios of the constituent bits of the other received symbols are calculated. A soft-decision decoding operation of received bits is performed with the calculated log-likelihood ratios.

摘要翻译： 公开了一种用于蜂窝系统接收机中的擦除检测和软判决解码的装置和方法。 在本发明中，估计来自蜂窝系统发射机的接收符号的复信道增益和噪声方差，并且通过比较根据估计的复信道的阈值来检测擦除符号（具有高功率干扰的符号） 增益或噪声方差与接收到的符号的功率。 对应于检测到的擦除符号的构成比特的对数似然比被允许为0，并且计算其他接收符号的构成比特的对数似然比。 利用所计算的对数似然比来执行接收比特的软判决解码操作。

公开(公告)号：US20080258564A1

公开(公告)日：2008-10-23

申请号：US12148314

申请日：2008-04-18

申请人： Gwan-Bon Koo ,  Jin-Tae Kim ,  Yoo-Woong Hwang ,  Kyung-Oun Jang ,  Jin-Woo Moon ,  Sang-Hyun Lee

发明人： Gwan-Bon Koo ,  Jin-Tae Kim ,  Yoo-Woong Hwang ,  Kyung-Oun Jang ,  Jin-Woo Moon ,  Sang-Hyun Lee

IPC分类号： H01H47/00

CPC分类号： H02M3/33523 ,  Y10T307/747

摘要： A switching mode power supply and a switch thereof are provided. The switch includes a plurality of first transistors, and a second transistor that is turned on/off by a control signal that is equal to that of the plurality of first transistors and in which a second current corresponding to a first current flowing to the plurality of first transistors flows, wherein a ratio of the first current to the second current sequentially changes from a time point at which the second transistor is turned on. Therefore, a switching mode power supply and a switch thereof that can always uniformly sustain a maximum limit current flowing to the switch regardless of a level of an input voltage without including a special additional circuit can be provided.

摘要翻译： 提供了开关电源及其开关。 开关包括多个第一晶体管，以及通过与多个第一晶体管的控制信号相等的控制信号导通/截止的第二晶体管，并且其中对应于流向多个第一晶体管的第一电流的第二电流 第一晶体管流动，其中第一电流与第二电流的比率从第二晶体管导通的时间点顺序地变化。 因此，可以提供一种开关模式电源及其开关，其可以始终均匀地维持流过开关的最大限制电流，而不考虑输入电压的电平而不包括特殊附加电路。

公开(公告)号：US20080212462A1

公开(公告)日：2008-09-04

申请号：US12065831

申请日：2006-09-05

申请人： Jae-Young Ahn ,  Bangwon Seo ,  Sang-Hyun Lee ,  Young-Jo Ko

发明人： Jae-Young Ahn ,  Bangwon Seo ,  Sang-Hyun Lee ,  Young-Jo Ko

IPC分类号： H04J11/00 ,  H04L27/28

CPC分类号： H04L27/2656 ,  H04L27/2613 ,  H04L27/2675 ,  H04W8/005 ,  H04W48/08 ,  H04W84/042 ,  H04W88/08

摘要： A method for generating a downlink signal and searching for a cell from the downlink signal in an OFDM-based cellular system is provided. Thus, a pilot pattern is formed in the downlink signal, and the pilot pattern is formed of a product of a cell-specific scrambling code and a cell group-specific code. The scrambling code is different for each cell and the same for each sub-frame, and the cell group-specific code is different for each cell and different for each sub-frame.

摘要翻译： 提供了一种用于在基于OFDM的蜂窝系统中从下行链路信号生成下行链路信号和搜索小区的方法。 因此，在下行链路信号中形成导频模式，并且导频模式由小区特定扰码和小区组特定码的乘积构成。 扰码对于每个小区是不同的，并且对于每个子帧是相同的，并且小区组特定码对于每个小区是不同的，并且对于每个子帧是不同的。

公开(公告)号：US20080152057A1

公开(公告)日：2008-06-26

申请号：US11962066

申请日：2007-12-20

申请人： Sang-Hyun Lee ,  Deog-Kyoon Jeong

发明人： Sang-Hyun Lee ,  Deog-Kyoon Jeong

IPC分类号： H04L7/00

CPC分类号： H04L7/0337 ,  H01L21/2257 ,  H01L21/76816 ,  H01L21/76897 ,  H01L29/66901 ,  H01L29/808 ,  H01L2924/0002 ,  H03L7/0812 ,  H04L7/0037 ,  H01L2924/00

摘要： A data recovery system for a serial digital data link includes a data sampler, compare logic, a phase controller, and a phase shifter. The data sampler samples input data three times in a bit time which time is determined by clock pulses generated by the phase shifter, and recovers digital data according to a predetermined decision criterion. The compare logic compares the output of the data sampler according to a predetermined method. Phase controller uses the output of the compare logic and generates phase control signals. The phase shifter uses the phase control signals and makes three different phase clocks from input clock. The input clock can be an external clock, or can be recovered from the external clock or input data stream.

摘要翻译： 用于串行数字数据链路的数据恢复系统包括数据采样器，比较逻辑，相位控制器和移相器。 数据采样器在一段时间内对输入数据进行三次采样，这个时间由移相器产生的时钟脉冲决定，并根据预定的判定标准恢复数字数据。 比较逻辑根据预定方法比较数据采样器的输出。 相位控制器使用比较逻辑的输出并产生相位控制信号。 移相器使用相位控制信号，并从输入时钟产生三个不同的相位时钟。 输入时钟可以是外部时钟，也可以从外部时钟或输入数据流中恢复。

公开(公告)号：US20080032694A1

公开(公告)日：2008-02-07

申请号：US11833575

申请日：2007-08-03

申请人： Hyun-Hye LEE ,  Sang-Hyun Lee

发明人： Hyun-Hye LEE ,  Sang-Hyun Lee

IPC分类号： H04Q7/20

CPC分类号： H04W36/00835 ,  H04W36/14 ,  H04W36/30

摘要： Provided is a cell reselection apparatus and method in a multi mode mobile terminal supporting at least two network access schemes different from each other. The method includes calculating a cell reselection criterion value for each of a serving cell and neighbor cells; subtracting a predetermined value from the cell reselection criterion value for each of the neighbor cells and updating the cell reselection criterion values of the neighbor cells, when a current communication mode is an Unlicensed Mobile Access (UMA) mode; and determining whether to perform cell reselection, using the calculated cell reselection criterion value of the serving cell and the updated cell reselection criterion values of the neighbor cells.

摘要翻译： 提供了一种支持彼此不同的至少两个网络接入方案的多模式移动终端中的小区重选设备和方法。 该方法包括：为每个服务小区和相邻小区计算小区重选标准值; 当当前通信模式是非授权移动接入（UMA）模式时，从每个相邻小区的小区重选准则值减去预定值并更新相邻小区的小区重选标准值; 以及使用所计算的所述服务小区的小区重选准则值和所述相邻小区的更新的小区重选准则值来确定是否执行小区重选。

公开(公告)号：US07315598B2

公开(公告)日：2008-01-01

申请号：US11498355

申请日：2006-08-02

申请人： Sang-Hyun Lee ,  Deog-Kyoon Jeong

发明人： Sang-Hyun Lee ,  Deog-Kyoon Jeong

IPC分类号： H04L7/00

CPC分类号： H04L7/0337 ,  H03L7/081 ,  H03L7/0812 ,  H03L7/0814 ,  H03L7/091 ,  H04L7/0037

摘要： A data recovery system for a serial digital data link includes a data sampler, compare logic, a phase controller, and a phase shifter. The data sampler samples input data three times in a bit time which time is determined by clock pulses generated by the phase shifter, and recovers digital data according to a predetermined decision criterion. The compare logic compares the output of the data sampler according to a predetermined method. Phase controller uses the output of the compare logic and generates phase control signals. The phase shifter uses the phase control signals and makes three different phase clocks from input clock. The input clock can be an external clock, or can be recovered from the external clock or input data stream.

摘要翻译： 用于串行数字数据链路的数据恢复系统包括数据采样器，比较逻辑，相位控制器和移相器。 数据采样器在一段时间内对输入数据进行三次采样，这个时间由移相器产生的时钟脉冲决定，并根据预定的判定标准恢复数字数据。 比较逻辑根据预定方法比较数据采样器的输出。 相位控制器使用比较逻辑的输出并产生相位控制信号。 移相器使用相位控制信号，并从输入时钟产生三个不同的相位时钟。 输入时钟可以是外部时钟，也可以从外部时钟或输入数据流中恢复。

公开(公告)号：US20070270147A1

公开(公告)日：2007-11-22

申请号：US11747445

申请日：2007-05-11

申请人： Yoon-Suk Choi ,  Sang-Hyun Lee

发明人： Yoon-Suk Choi ,  Sang-Hyun Lee

IPC分类号： H04Q7/20

CPC分类号： H04W48/16

摘要： Provided are an apparatus and a method for scanning a Home Public Land Mobile Network (Home PLMN) in a mobile communication terminal that includes the operations of determining an operation mode of the mobile communication terminal, if a Home PLMN scanning timer expires, and setting a flag to indicate that the Home PLMN scanning timer expires, if the mobile communication terminal is determined to be in a non-idle mode. As a result, the Home PLMN can be searched as fast as possible.

摘要翻译： 提供了一种用于扫描移动通信终端中的归属公共陆地移动网络（家庭PLMN）的装置和方法，该移动通信终端包括如果家庭PLMN扫描定时器到期而确定移动通信终端的操作模式的操作，并且设置 如果确定移动通信终端处于非空闲模式，则指示归属PLMN扫描定时器到期的标志。 结果，可以尽可能快地搜索家庭PLMN。