公开(公告)号：US08228875B2

公开(公告)日：2012-07-24

申请号：US12395822

申请日：2009-03-02

申请人： Sung-Kee Kim ,  Yun-Je Oh ,  Tae-Sung Park ,  Sung-Jea Ko ,  Hye-Soo Kim

发明人： Sung-Kee Kim ,  Yun-Je Oh ,  Tae-Sung Park ,  Sung-Jea Ko ,  Hye-Soo Kim

IPC分类号： H04W4/00

CPC分类号： H04W36/32

摘要： Provided is a handoff processing method including measuring a moving speed of a mobile terminal; measuring a size of a data packet generated in an application layer; measuring quality of a data transmission channel of the mobile terminal; calculating a maximum handoff delay time based on a relation between the moving speed and the data packet's size; estimating a handoff occurrence time point, based on a relation between a variation of the quality of the data transmission channel and the quality of the data transmission channel; and calculating a packet size and a moving speed of the mobile terminal that can minimize a delay due to a handoff occurrence by taking account of a handoff delay time according to the size of the data packet generated in the application layer and a moving speed of the mobile terminal into consideration, and providing the calculated packet size and moving speed.

摘要翻译： 提供一种切换处理方法，包括测量移动终端的移动速度; 测量在应用层中生成的数据分组的大小; 测量移动终端的数据传输信道的质量; 基于移动速度与数据包大小之间的关系计算最大切换延迟时间; 基于数据传输信道的质量的变化与数据传输信道的质量之间的关系来估计切换发生时间点; 以及计算移动终端的分组大小和移动速度，其可以根据在应用层中生成的数据分组的大小考虑到切换延迟时间来最小化由于切换发生引起的延迟，并且移动速度 考虑移动终端，并提供计算的分组大小和移动速度。

公开(公告)号：US07733825B2

公开(公告)日：2010-06-08

申请号：US11514440

申请日：2006-09-01

申请人： Sang-Ho Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Dae-Eun Choi

发明人： Sang-Ho Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Dae-Eun Choi

IPC分类号： H04W4/00 ,  H04L12/56

CPC分类号： H04W88/085

摘要： A radio over fiber (ROF) link apparatus capable of a stable TDD wireless service for a time division duplexing (TDD) baseband signal includes a central access platform (CAP) for receiving various kinds of data including the TDD baseband signal from upper layers, multiplexing the data, electro-optically converting the multiplexed data, and transmitting the converted data as downstream data through an optical fiber, and opto-electrically converting upstream data received through the optical fiber, demultiplexing the converted upstream data, and transmitting the demultiplexed upstream data to the respective upper layers, and a remote access unit (RAU) for receiving the downstream data through the optical fiber, opto-electrically converting the received downstream data to the multiplexed data, demultiplexing the multiplexed data, performing a wireless access process of the demultiplexed data, and transmitting the wireless access processed data to a wireless local area network (WLAN) service terminal through an antenna.

摘要翻译： 能够对TDD时基双工（TDD）基带信号进行稳定的TDD无线业务的无线电光纤（ROF）链路装置包括用于从上层接收包括TDD基带信号的各种数据的中央接入平台（CAP） 数据，电光转换多路复用数据，并通过光纤将转换后的数据作为下行数据发送，并对通过光纤接收的上行数据进行光电转换，对转换的上行数据进行解复用，并将解复用的上行数据发送到 各自的上层以及用于通过光纤接收下游数据的远程访问单元（RAU），将接收到的下游数据光电转换为多路复用数据，解复用多路复用数据，执行解复用数据的无线接入处理 ，并将无线接入处理的数据发送到无线局域网（WLAN）服务 e端子通过天线。

公开(公告)号：US07639189B2

公开(公告)日：2009-12-29

申请号：US11780795

申请日：2007-07-20

申请人： Yong Hyun Kim ,  Dong Woo Kim ,  Hong Chul Park ,  Kyung Mok Yoo ,  Sung Kee Kim

发明人： Yong Hyun Kim ,  Dong Woo Kim ,  Hong Chul Park ,  Kyung Mok Yoo ,  Sung Kee Kim

IPC分类号： H01Q1/24

CPC分类号： H01Q1/243 ,  H01Q21/29

摘要： An antenna device for a mobile terminal. The antenna device includes a first antenna pattern provided within a case of the mobile terminal, and a second antenna pattern provided within the case and electrically connected to the first antenna pattern through contact with the first antenna pattern. Therefore, by forming an antenna device with an antenna pattern for use in a low frequency band, the antenna device may be conveniently used and decrease the size of the mobile terminal.

摘要翻译： 一种用于移动终端的天线装置。 天线装置包括设置在移动终端的壳体内的第一天线图案和设置在壳体内并通过与第一天线图案接触而电连接到第一天线图案的第二天线图案。 因此，通过形成具有用于低频带的天线方向图的天线装置，天线装置可以方便地使用并减小移动终端的尺寸。

公开(公告)号：US20090097546A1

公开(公告)日：2009-04-16

申请号：US12249018

申请日：2008-10-10

申请人： Chang-Hyun LEE ,  Kwan-Woong SONG ,  Young-O PARK ,  Yong-Serk KIM ,  Young-Hun JOO ,  Tae-Sung PARK ,  Jae-Hoon KWON ,  Do-Young JOUNG ,  Jae-Sung PARK ,  Sung-Kee KIM ,  Yong-Gyoo KIM ,  Yun-Je OH

发明人： Chang-Hyun LEE ,  Kwan-Woong SONG ,  Young-O PARK ,  Yong-Serk KIM ,  Young-Hun JOO ,  Tae-Sung PARK ,  Jae-Hoon KWON ,  Do-Young JOUNG ,  Jae-Sung PARK ,  Sung-Kee KIM ,  Yong-Gyoo KIM ,  Yun-Je OH

IPC分类号： H04N7/26

CPC分类号： H04N19/87 ,  H04N19/124 ,  H04N19/132 ,  H04N19/142 ,  H04N19/154 ,  H04N19/17 ,  H04N19/587 ,  H04N19/61

摘要： Disclosed is a method for detecting a scene change in real time in order to control a moving-picture encoding data rate, the method including: dividing a current frame into a plurality of regions, and calculating a dissimilarity metric (DM) of each divided region; determining if the dissimilarity metric of each divided region is beyond a preset reference value; calculating the number of regions, the dissimilarity metric of which is beyond the preset value, in the current frame; and determining that a scene change occurs in the current frame, when the number of regions, the dissimilarity metric of which is beyond the reference preset value, is equal to or greater than a preset threshold value.

摘要翻译： 公开了一种用于实时检测场景变化以便控制运动图像编码数据速率的方法，该方法包括：将当前帧划分成多个区域，并且计算每个划分区域的相似度量度（DM） ; 确定每个分割区域的相似性度量是否超出预设的参考值; 在当前帧中计算其相异度量超出预设值的区域数; 以及当所述当前帧中出现场景变化超过所述参考预置值的区域的数量等于或大于预设阈值时，确定场景变化发生在当前帧中。

公开(公告)号：US20090022218A1

公开(公告)日：2009-01-22

申请号：US12176506

申请日：2008-07-21

申请人： Yong-Gyoo Kim ,  Tae-Sung Park ,  Jae-Hoon Kwon ,  Do-Young Joung ,  Sung-Kee Kim ,  Chang-Hyun Lee

发明人： Yong-Gyoo Kim ,  Tae-Sung Park ,  Jae-Hoon Kwon ,  Do-Young Joung ,  Sung-Kee Kim ,  Chang-Hyun Lee

IPC分类号： H04N7/26

CPC分类号： H04N19/166 ,  H04N19/107 ,  H04N19/124 ,  H04N19/14 ,  H04N19/46 ,  H04N19/70

摘要： Disclosed is a method for controlling bit rates in consideration of wireless channel environment by an apparatus that transmits and receives moving picture encoding data via a wireless network. The apparatus for transmitting/receiving data through a wireless communication network connected to the apparatus including a channel state analyzing unit for analyzing a wireless channel environment, an encoding controller for generating control information containing information about a quantization parameter, skip or non-skip of frames indication, frame type indication, and use or non-use of an Error Resilient Tool (ERT) indication, in consideration of an analyzation result received from the channel state analyzing unit, a moving picture encoding unit for encoding incoming moving picture data, based on the control information received from the encoding controller; and a data transmitting/receiving unit for transferring the encoded moving picture data through the wireless channel to an exterior.

摘要翻译： 公开了一种通过无线网络发送和接收运动图像编码数据的装置来考虑无线信道环境来控制比特率的方法。 用于通过连接到包括用于分析无线信道环境的信道状态分析单元的装置的无线通信网络发送/接收数据的装置，用于生成包含关于量化参数的信息的控制信息的编码控制，帧的跳过或非跳过 考虑到从通道状态分析单元接收到的分析结果，指示，帧类型指示以及使用或不使用错误弹性工具（ERT）指示，基于对来自运动图像数据进行编码的运动图像编码单元 从编码控制器接收的控制信息; 以及用于通过无线信道将编码运动图像数据传送到外部的数据发送/接收单元。

公开(公告)号：US20070285056A1

公开(公告)日：2007-12-13

申请号：US11797432

申请日：2007-05-03

申请人： Won-Chan Yoon ,  Sung-Kee Kim ,  Gu-Sup Kim

发明人： Won-Chan Yoon ,  Sung-Kee Kim ,  Gu-Sup Kim

IPC分类号： H02J7/00

CPC分类号： G06F1/263 ,  Y10T307/516 ,  Y10T307/615 ,  Y10T307/625

摘要： A portable terminal and power supply control method are provided. The portable terminal having a power supply control feature includes a main battery for supplying power to the portable terminal, an auxiliary battery for supplying power to the portable terminal independently of the main battery, a switch module for controlling the power supply of the main battery and auxiliary battery, and a power unit controller for controlling on-off settings of the switch module and for disconnecting, when a battery level of the main battery is higher than that of the auxiliary battery, the auxiliary battery from the main battery. The battery levels of the main battery and auxiliary battery are measured and are controlled to prevent charging of the auxiliary battery with a charge current from the main battery through switch settings.

摘要翻译： 提供便携式终端和电源控制方法。 具有电源控制特征的便携式终端包括用于向便携式终端供电的主电池，用于独立于主电池向便携式终端供电的辅助电池，用于控制主电池的电源的开关模块和 辅助电池和用于控制开关模块的开 - 关设置的电源单元控制器，并且当主电池的电池电量高于辅助电池的电池电量时，从主电池断开辅助电池。 测量主电池和辅助电池的电池电量，并进行控制，以防止通过开关设置从主电池充电电流对辅助电池充电。

公开(公告)号：US07289048B2

公开(公告)日：2007-10-30

申请号：US10806548

申请日：2004-03-23

申请人： Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： H03M1/00

CPC分类号： H04B10/505 ,  H04B10/5055 ,  H04B10/5167

摘要： A duo-binary encoder performs a parallel processing and an optical duo-binary transmission apparatus using the encoder to enhance transmission capability. The duo-binary encoder has a judgment unit for judging whether an odd number or even number of ‘0’s exists in data input signals of N channels, a toggle unit for toggling an output signal of the judgment unit when a number of ‘0’s is even, an intermediate signal generation unit for determining whether phases of other channels are shifted or not, according to an data input signal on the basis of a predetermined channel of the N channels. A phase division unit divides data into a first data group having non-shifted phases and a second group of data that require a phase shift, according to an output signal of the intermediate signal generation unit and the data input signal. The divided first and second data groups are then output.

摘要翻译： 二进制编码器使用编码器执行并行处理和光二进制传输装置，以增强传输能力。 二进制编码器具有判断单元，用于判断N个通道的数据输入信号中是否存在奇数或偶数的“0”，当“0”为偶数时，用于切换判断单元的输出信号的触发单元 根据N个信道的预定信道，根据数据输入信号，确定是否移位了其他信道的相位的中间信号生成部。 相位分割单元根据中间信号产生单元的输出信号和数据输入信号将数据划分成具有非移相的第一数据组和需要相移的第二组数据。 然后输出分割的第一和第二数据组。

公开(公告)号：US07266300B2

公开(公告)日：2007-09-04

申请号：US10458171

申请日：2003-06-10

申请人： Sung-Kee Kim ,  Young-Hun Joo ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Young-Hun Joo ,  Seong-Taek Hwang

IPC分类号： H04J14/02

CPC分类号： H04J14/0216 ,  H04B10/2971 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/0227

摘要： A bi-directional path switched ring optical transmission node has simple configuration which reduces the influence of a wave reflected by an obstacle on optical line.The BPSR optical transmission node connects to a first optical line through which an odd channel signal and an even channel signal are transmitted to and from the BPSR optical transmission node in direction opposite to each other. The BPSR optical transmission node further connects to a second optical line through which the odd channel signal and the even channel signal are transmitted from and to the BPSR optical transmission node in direction opposite to each other. The BPSR optical transmission n-ode includes a node section for directing the odd channel signal and the even channel signal, dropping/adding a desired channel from/to the odd channel signal and the even channel signal,and then allowing each of the odd channel signal and the even channel signal to proceed in a direction traveled by that channel signal upon arriving at the BPSR optical transmission node; and filtering section coupled between the node section and respective optical lines, the filtering section allowing only one of the odd channel signal and the even channel signal to pass without attenuating the signal.

摘要翻译： 双向路径交换环形光传输节点具有简单的配置，减少了由障碍物反射的波对光线路的影响.BPSR光传输节点连接到第一光线路，奇数信道信号和偶信道信号 在彼此相反的方向上被传送到BPSR光传输节点。 BPSR光传输节点进一步连接到第二光线路，通过该第二光线路，奇数信道信号和偶信道信号以彼此相反的方向从BPSR光传输节点传送到BPSR光传输节点。 BPSR光传输n-ode包括用于引导奇信道信号和偶信道信号的节点部分，从奇信道信号和偶信道信号中丢弃/添加所需信道，然后允许奇信道 信号和偶数信道信号在到达BPSR光传输节点时沿着该信道信号行进的方向进行; 以及耦合在所述节点部分和各个光线路之间的滤波部分，所述滤波部分仅允许奇数信道信号和偶数信道信号中的一个通过而不衰减所述信号。

公开(公告)号：US20070147273A1

公开(公告)日：2007-06-28

申请号：US11633838

申请日：2006-12-05

申请人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

发明人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

IPC分类号： H04J3/00

CPC分类号： H04B10/25758 ,  H04H20/69 ,  H04H20/71 ,  H04W88/085 ,  H04W88/10

摘要： Disclosed is a radio-over-fiber (ROF) system for supporting various services, the system comprising: a central access platform (CAP) for providing time division duplexing (TDD), frequency division duplexing (FDD), and broadcasting services, converting a TDD downward signal and FDD/broadcasting downward signals into optical signals, respectively, transmitting the converted optical signals to a remote access unit (RAU), converting a TDD upward signal and an FDD upward signal, which have been transmitted as optical signals from the RAU, into electric signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other; and the RAU for converting the TDD downward signal and FDD/broadcasting downward signals transmitted from the CAP into electric signals, respectively, converting the TDD upward signal and FDD upward signal to be transmitted to the CAP into optical signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other, wherein the RAU includes a plurality of signal filtering/separating/combining units, which wirelessly emit the TDD downward signal and FDD/broadcasting downward signals, having been converted into electric signals, through an antenna, and which separate wirelessly-received TDD upward signal and FDD upward signal from each other.

摘要翻译： 公开了用于支持各种业务的无线电光纤（ROF）系统，该系统包括：用于提供时分双工（TDD），频分双工（FDD）和广播服务的中央接入平台（CAP） TDD向下信号和FDD /广播向下信号分别转换成光信号，将转换后的光信号发送到远程接入单元（RAU），转换已经作为光信号从RAU发送的TDD上行信号和FDD向上信号 分别变成电信号，并使用光循环器，以便彼此分离上下信号; 以及分别将从CAP发送的TDD向下信号和FDD /广播向下信号转换成电信号的RAU，分别将TDD向上信号和FDD向上信号转换为发送到CAP的光信号，并使用光 循环器，以便彼此分离上下信号，其中RAU包括多个信号滤波/分离/组合单元，其经过转换成电信号无线地发射TDD向下信号和FDD /广播向下信号，通过 天线，并且将无线接收的TDD上行信号和FDD上行信号彼此分离。

公开(公告)号：US20070140699A1

公开(公告)日：2007-06-21

申请号：US11639965

申请日：2006-12-15

申请人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： H04B10/00

CPC分类号： H04B10/2581 ,  H04B10/25752

摘要： Disclosed is a method of setting a signal band of a Radio-Over-Fiber (ROF) link device using a Multi-Mode Fiber (MMF), which includes the steps of dividing a preset band of the entire frequency band of the MMF as a plurality of frequency slots to preset a transmission band in a transmitting side device, sequentially sweeping a plurality of reference frequencies predetermined for each transmission band of the plurality of the frequency slots to only the bands of the corresponding frequency slots, identifying the possibility of signal transmission for each of the plurality of frequency slots in accordance with transmission quality information transmitted from a receiving side to set a transmission signal band, detecting the quality of a signal received for the corresponding frequency slot when sweeping a frequency for each of the plurality of frequency slots in the receiving side device, and transmitting the transmission quality information to the transmitting side device in accordance with the detected signal quality.

摘要翻译： 公开了使用多模光纤（MMF）设置无线光纤（ROF）链路装置的信号频带的方法，其包括以下步骤：将MMF的整个频带的预置频带划分为 多个频率时隙，以在发送侧设备中预设传输频带，将预定的多个频率段中的每个传输频带的多个参考频率顺序地扫描到相应频率的频带，以识别信号传输的可能性 根据从接收侧发送的传输质量信息来设置发送信号频带的多个频率间隙中的每一个，当扫描多个频率槽中的每一个频率的频率时，检测对于相应的时隙接收的信号的质量 在接收侧设备中，并根据w向发送侧设备发送传输质量信息 检测信号质量。