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1. 发明授权

US07130543B2 Bit rate-independent optical receiver 有权
公开(公告)号：US07130543B2
公开(公告)日：2006-10-31
申请号：US10043617
申请日：2002-01-10
申请人： Kyu-Hyoung Cho , Yun-Je Oh , Jun-Ho Koh , Byung-Jik Kim , Chan-Youl Kim , Chang-Hyun Lee
发明人： Kyu-Hyoung Cho , Yun-Je Oh , Jun-Ho Koh , Byung-Jik Kim , Chan-Youl Kim , Chang-Hyun Lee
IPC分类号： H04B10/00
CPC分类号： H04B10/6932
摘要： A bit rate-independent optical receiver ensures transparency with respect to changes of the transmission format and its associated bit rate in relation to an optical communications system. The optical receiver includes an opto-electric converter for converting an input optical signal into an electric signal, an amplifier circuit for amplifying the electrical signal, a bit rate-sensing circuit for generating a sensing signal with a voltage level determined on the basis of the bit rate of the electrical signal, a bit rate-recognition circuit for generating a recognition signal further amplified from the sensing signal, and a clock/data recovery circuit for reproducing a clock signal and data from the amplified electrical signal in accordance with a control signal. A controller determines a bit rate corresponding to the voltage level of the recognition signal by referring to a look-up table of the bit rate to the voltage level and provides the clock/data recovery circuit with the control signal representative of the bit rate.

2. 发明授权

US07412164B2 Photoelectric cross-connect system 失效
标题翻译：光电交叉连接系统
公开(公告)号：US07412164B2
公开(公告)日：2008-08-12
申请号：US10425699
申请日：2003-04-29
申请人： Jeong-Seok Choi , Yun-Je Oh , Jun-Ho Koh , Chang-Hyun Lee , Byung-Jik Kim , Jeong-Rok Park
发明人： Jeong-Seok Choi , Yun-Je Oh , Jun-Ho Koh , Chang-Hyun Lee , Byung-Jik Kim , Jeong-Rok Park
IPC分类号： H04B10/00
CPC分类号： H04L1/22
摘要： A photoelectric cross-connect system for an optical-communication system minimizes service recovery time when an error is generated. A plurality of nodes are connected by an optical-transmission line wherein each nodes automatically recognizes a data rate of an input signal and communicates over a redundant channel with an adjacent node when there is a certain type of error. An optical-receiving unit receives an optical signal performs O/E conversion. A main optical-transmitting unit recovers clock and data signals according to the converted signal and sets a data rate according to the converted signal for subsequent transmission; a redundant optical-transmitting unit recovers a clock and data according to the converted signal and sets a data rate according to the converted signal for subsequent transmission A switch provides selectively connection state between the optical-receiving unit and the main optical-transmitting unit and between the optical-receiving unit and the redundant optical-transmitting unit.
摘要翻译：用于光通信系统的光电交叉连接系统在产生错误时将服务恢复时间最小化。多个节点通过光传输线连接，其中每个节点自动识别输入信号的数据速率，并且当存在某种类型的错误时，通过冗余信道与相邻节点进行通信。光接收单元接收执行O / E转换的光信号。主光传输单元根据转换的信号恢复时钟和数据信号，并根据转换的信号设置数据速率用于随后的传输; 冗余光传输单元根据转换的信号恢复时钟和数据，并根据转换的信号设置数据速率用于后续发送。A交换机选择性地提供光接收单元和主光传输单元之间的连接状态，以及光接收单元和冗余光发射单元。

3. 发明授权

US07218863B2 Optical transmission system for optimizing bias of laser diode for SCM analog optical signal 有权
标题翻译：用于优化SCM模拟光信号激光二极管偏置的光传输系统
公开(公告)号：US07218863B2
公开(公告)日：2007-05-15
申请号：US10638453
申请日：2003-08-11
申请人： Chang-Hyun Lee , Chan-Yul Kim , Yun-Je Oh , Jun-Ho Koh
发明人： Chang-Hyun Lee , Chan-Yul Kim , Yun-Je Oh , Jun-Ho Koh
IPC分类号： H04B10/04
CPC分类号： H04B10/504 , H04B10/58
摘要： An optical transmission system for optimizing the bias of a laser diode during an SCM analog optical transmission includes an optical transmitter for converting a baseband electric signal into an optical signal using a laser diode according to the set bias and outputting the optical signal through an optical line, an optical receiver for converting the optical signal transmitted from the optical transmitter into the baseband electric signal, a recovery unit for detecting an error generated according to the bias of the laser diode on the basis of the electric signal converted by the optical receiver, and a bias adjuster for optimally adjusting the bias of the laser diode on the basis of a value of the error detected by the reproducer.
摘要翻译：一种用于在SCM模拟光传输期间优化激光二极管的偏置的光传输系统包括：光发射机，用于根据设定的偏置，使用激光二极管将基带电信号转换为光信号，并通过光线路输出光信号用于将从光发送器发送的光信号转换为基带电信号的光接收器，用于根据由光接收器转换的电信号来检测根据激光二极管的偏置产生的误差的恢复单元;以及偏置调节器，用于基于由再现器检测到的误差的值来最佳地调整激光二极管的偏置。

4. 发明申请

US20080025401A1 Method for measuring real-time image complexity 审中-公开
标题翻译：测量实时图像复杂度的方法
公开(公告)号：US20080025401A1
公开(公告)日：2008-01-31
申请号：US11880203
申请日：2007-07-20
申请人： Chang-Hyun Lee , Jae-Seok Kim , Seong-Joo Lee , Yun-Je Oh , Young-Hun Joo
发明人： Chang-Hyun Lee , Jae-Seok Kim , Seong-Joo Lee , Yun-Je Oh , Young-Hun Joo
IPC分类号： H04N7/12
CPC分类号： H04N19/152 , H04N19/115 , H04N19/124 , H04N19/137 , H04N19/139 , H04N19/176 , H04N19/46 , H04N19/513 , H04N19/61
摘要： A method for measuring an real-time image complexity of an image processed for each macroblock based on a frame includes: identifying a state of a preset value among header bits of information processed for each macroblock in a preceding frame; identifying a state of the preset value among header bits of information processed for each macroblock up to a preceding frame; and detecting image complexity of a current frame through comparison of the identified states.
摘要翻译：一种用于测量基于帧的每个宏块处理的图像的实时图像复杂度的方法包括：识别针对前一帧中的每个宏块处理的信息的标题位之间的预设值的状态; 识别针对每个宏块处理的信息的标题位之前的预设值的状态，直到前一帧; 并且通过比较所识别的状态来检测当前帧的图像复杂度。

5. 发明授权

US08169967B2 Method for performing handover by considering quality of service in broadband mobile communication system and system for providing the same 有权
标题翻译：通过考虑宽带移动通信系统中的服务质量和提供宽带移动通信系统的系统来执行切换的方法
公开(公告)号：US08169967B2
公开(公告)日：2012-05-01
申请号：US12050341
申请日：2008-03-18
申请人： Chang-Hyun Lee , Sung-Jea Ko , Yun-Je Oh , Tae-Sung Park , Jeong-Rok Park , Jeong-Seok Choi , Young-Hun Joo , Hye-Soo Kim , Kyung-Ho Chae
发明人： Chang-Hyun Lee , Sung-Jea Ko , Yun-Je Oh , Tae-Sung Park , Jeong-Rok Park , Jeong-Seok Choi , Young-Hun Joo , Hye-Soo Kim , Kyung-Ho Chae
IPC分类号： H04W4/00 , H04W36/00 , H04B7/216 , H04M11/00
CPC分类号： H04W36/30 , H04W36/26
摘要： A system and method for performing a handover of a mobile station (MS) by considering Quality of Service (QoS) in a broadband mobile communication system. The method can include the steps of: receiving information about one or more neighbor base stations and reception strengths for the neighbor base stations from a Serving Radio Access System (RAS) currently communicating with the MS; extracting a value of a specific field from the received information about the neighbor base stations; combining the extracted value of the specific field with the reception strengths to thereby obtain combined values, and selecting a maximum value among the combined values; and transmitting a handover (handoff) request message to a base station corresponding to the selected maximum value. The system includes an MS that analyzes information about neighbor stations received in a Mobile Neighbor Base-station Advertisement (MOB_NBR_ADV) message to select a target RAS.
摘要翻译：一种通过考虑宽带移动通信系统中的服务质量（QoS）来执行移动台（MS）的切换的系统和方法。该方法可以包括以下步骤：从当前与MS通信的服务无线电接入系统（RAS）接收关于一个或多个相邻基站的信息和相邻基站的接收强度; 从接收到的关于邻近基站的信息中提取特定字段的值; 将所提取的特定字段的值与接收强度组合，从而获得组合值，并且选择组合值中的最大值; 以及向对应于所选择的最大值的基站发送切换（切换）请求消息。该系统包括分析在移动邻居基站广播（MOB_NBR_ADV）消息中接收的关于相邻站的信息以选择目标RAS的MS。

6. 发明申请

US20080025392A1 Method and apparatus for controlling video encoding data rate 审中-公开
标题翻译：用于控制视频编码数据速率的方法和装置
公开(公告)号：US20080025392A1
公开(公告)日：2008-01-31
申请号：US11880969
申请日：2007-07-25
申请人： Chang-Hyun Lee , Jae-Seok Kim , Seong-Joo Lee , Yun-Je Oh , Young-Hun Joo
发明人： Chang-Hyun Lee , Jae-Seok Kim , Seong-Joo Lee , Yun-Je Oh , Young-Hun Joo
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/115 , H04N19/124 , H04N19/142 , H04N19/61
摘要： A method and apparatus for controlling a video encoding data rate in real-time in order to minimize performance deterioration, even when a scene change has occurred in an application field having a small number of available bits due to a low bit rate and a high frame rate. The method includes: a first step of determining whether scene change has occurred in a current frame; a second step of determining whether a number of current available bits is more than a preset reference when it is determined that the scene change has occurred; and a third step of adjusting a Quantization Parameter (QP) according to a first preset condition when it is determined that the number of current available bits is more than that preset reference. An apparatus includes an encoder QP controller having a QP module for adjusting the QP.
摘要翻译：即使当由于低比特率和高帧而在具有少量可用比特的应用领域中发生场景变化时，也可以实时地控制视频编码数据速率以便最小化性能劣化的方法和装置率。该方法包括：确定在当前帧中是否发生场景变化的第一步骤; 当确定出现场景变化时，确定当前可用位数是否大于预设参考值的第二步骤; 以及当确定当前可用位的数量大于该预设参考值时，根据第一预设条件调整量化参数（QP）的第三步骤。一种装置包括具有用于调整QP的QP模块的编码器QP控制器。

7. 发明申请

US20080025402A1 Method of detecting scene conversion for controlling video encoding data rate 审中-公开
标题翻译：用于控制视频编码数据速率的场景转换检测方法
公开(公告)号：US20080025402A1
公开(公告)日：2008-01-31
申请号：US11880205
申请日：2007-07-20
申请人： Chang-Hyun Lee , Jae-Seok Kim , Seong-Joo Lee , Yun-Je Oh , Young-Hun Joo
发明人： Chang-Hyun Lee , Jae-Seok Kim , Seong-Joo Lee , Yun-Je Oh , Young-Hun Joo
IPC分类号： H04N7/12
CPC分类号： H04N19/103 , H04N19/137 , H04N19/142 , H04N19/172 , H04N19/87
摘要： A method of detecting scene conversion in real time for controlling a video encoding data rate, includes: estimating PSNR (Peak Signal to Noise Ratio) of a current frame by using error information between the current frame and the previous frame(a reference frame); determining whether the estimated PSNR escapes a predetermined reference value; and considering that the scene conversion is performed in the current frame when the estimated PSNR escapes the predetermined reference value.
摘要翻译：一种用于控制视频编码数据速率的实时检测场景转换的方法包括：通过使用当前帧与先前帧（参考帧）之间的误差信息来估计当前帧的PSNR（峰值信噪比）; 确定估计的PSNR是否逃避预定的参考值; 并且考虑到当估计的PSNR逃避预定参考值时，在当前帧中执行场景转换。

8. 发明申请

US20050013611A1 Image data processing apparatus in optical subscriber network 审中-公开
标题翻译：光用户网络中的图像数据处理装置
公开(公告)号：US20050013611A1
公开(公告)日：2005-01-20
申请号：US10763985
申请日：2004-01-23
申请人： Chang-Hyun Lee , Chan-Yul Kim , Sang-Ho Kim , Jun-Ho Koh
发明人： Chang-Hyun Lee , Chan-Yul Kim , Sang-Ho Kim , Jun-Ho Koh
IPC分类号： H04L12/28 , H04J3/16 , H04J14/00
CPC分类号： H04J3/1617
摘要： An image data transmission apparatus in an optical subscriber network is disclosed, which comprises: one optical line termination for receiving MPTS data from an outside, packetizing the received MPTS data into HDLC packets, and transmitting the HDLC packets as optical signals; and a plurality of ONUs connected to the OLT, the ONU receiving the optical signal transmitted from the OLT, converting the optical signal into an electrical signal, extracting MPTS data from the converted HDLC packet, and switching the MPTS data to each subscriber. The image data transmission apparatus processes HDLC-based MPTS data, increases degree of integration of data, and therefore enables the optical subscriber network to include more channels.
摘要翻译：公开了一种光用户网络中的图像数据传输装置，包括：一个光线路终端，用于从外部接收MPTS数据，将接收到的MPTS数据分组成HDLC分组，并将HDLC分组作为光信号发送; 以及连接到OLT的多个ONU，ONU接收从OLT发送的光信号，将光信号转换成电信号，从转换的HDLC分组中提取MPTS数据，并将MPTS数据切换到每个用户。图像数据发送装置处理基于HDLC的MPTS数据，增加数据的集成度，因此使得光用户网络能够包括更多的信道。

9. 发明授权

US09324727B2 Memory devices having semiconductor patterns on a substrate and methods of manufacturing the same 有权
标题翻译：在衬底上具有半导体图案的存储器件及其制造方法
公开(公告)号：US09324727B2
公开(公告)日：2016-04-26
申请号：US14176332
申请日：2014-02-10
申请人： Chang-Hyun Lee , Hyun-Jung Kim , Dong-Hoon Jang , Albert Fayrushin
发明人： Chang-Hyun Lee , Hyun-Jung Kim , Dong-Hoon Jang , Albert Fayrushin
IPC分类号： H01L27/115 , H01L21/762 , H01L23/48 , H01L29/788
CPC分类号： H01L27/11582 , H01L21/76224 , H01L27/11551 , H01L27/11565 , H01L29/7889
摘要： A memory device may include a plurality of semiconductor patterns on a substrate including a plurality of first impurity regions doped at a first impurity concentration, a plurality of second impurity regions at portions of the substrate contacting the plurality of semiconductor patterns and doped at a second impurity concentration, a plurality of channel patterns on the plurality of semiconductor patterns, a plurality of gate structures, a plurality of third impurity regions at portions of the substrate adjacent to end portions of the plurality of gate structures, and a plurality of fourth impurity regions at portions of the substrate between the second and third impurity regions and between adjacent second impurity regions. The plurality of fourth impurity regions may be doped at a third impurity concentration which may be lower than the first and second impurity concentrations.
摘要翻译：存储器件可以包括在衬底上的多个半导体图案，其包括以第一杂质浓度掺杂的多个第一杂质区域，在与多个半导体图案接触并且以第二杂质掺杂的衬底的部分处的多个第二杂质区域浓度，多个半导体图案上的多个沟道图案，多个栅极结构，在与多个栅极结构的端部相邻的基板的部分处的多个第三杂质区域，以及多个第四杂质区域在第二和第三杂质区之间和相邻的第二杂质区之间的衬底的部分。可以在可以低于第一和第二杂质浓度的第三杂质浓度下掺杂多个第四杂质区域。

10. 发明授权

US08629489B2 Nonvolatile memory devices 有权
标题翻译：非易失性存储器件
公开(公告)号：US08629489B2
公开(公告)日：2014-01-14
申请号：US13357350
申请日：2012-01-24
申请人： Chang-Hyun Lee , Jung-Dal Choi
发明人： Chang-Hyun Lee , Jung-Dal Choi
IPC分类号： H01L29/76
CPC分类号： H01L27/1052 , G11C16/0483 , H01L27/11521 , H01L27/11524
摘要： A nonvolatile memory device includes a string selection transistor, a plurality of memory cell transistors, and a ground selection transistor electrically connected in series to the string selection transistor and to the pluralities of memory cell transistors. First impurity layers are formed at boundaries of the channels and the source/drain regions of the memory cell transistors. The first impurity layers are doped with opposite conductivity type impurities relative to the source/drain regions of the memory cell transistors. Second impurity layers are formed at boundaries between a channel and a drain region of the string selection transistor and between a channel and a source region of the ground selection transistor. The second impurity layers are doped with the same conductivity type impurities as the first impurity layers and have a higher impurity concentration than the first impurity layers.
摘要翻译：非易失性存储器件包括串选择晶体管，多个存储单元晶体管和与串选择晶体管和多个存储单元晶体管串联电连接的接地选择晶体管。在存储单元晶体管的沟道和源极/漏极区的边界处形成第一杂质层。相对于存储单元晶体管的源/漏区，第一杂质层掺杂有相反导电类型的杂质。第二杂质层形成在串选择晶体管的沟道和漏极区之间的边界处，并且在地选择晶体管的沟道和源极区之间形成。第二杂质层掺杂有与第一杂质层相同的导电类型杂质，并且具有比第一杂质层更高的杂质浓度。

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