公开(公告)号：US20080249739A1

公开(公告)日：2008-10-09

申请号：US12088461

申请日：2005-12-26

申请人： Jeom-Hun Lee ,  Jae-Hoon Kim ,  Ho-Jin Lee

发明人： Jeom-Hun Lee ,  Jae-Hoon Kim ,  Ho-Jin Lee

IPC分类号： G01B21/10

CPC分类号： G01B21/10 ,  H01Q19/132

摘要： Provided are an apparatus and method for determining a diameter of a reflector antenna. The apparatus includes a setting unit for setting up electrical characteristic values of the reflector antenna upon receipt thereof from outside, a parameter input unit for receiving a frequency, an antenna diameter variable value, antenna efficiency, Edge Taper (ET), and an Edge Of Coverage (EOC) angle as parameters for each of multiple frequencies to be accommodated in the reflector antenna, a graph generator for generating, on one rectangular coordinate, a graph representing the relationship between an antenna diameter and EOC directivity with respect to the EOC angle based on the parameters for each frequency received through the parameter input unit, an antenna diameter determination unit for determining an antenna diameter that simultaneously meets the preset EOC directivities for the frequencies to be accommodated in the reflector antenna by using the graph generated by the graph generation unit, and a graph output unit for mapping and outputting the graph generated by the graph generation unit on one rectangular coordinate with an antenna diameter axis and an EOC directivity axis to thereby represent the antenna diameter determined by the antenna diameter determination unit on the graph.

摘要翻译： 提供了一种用于确定反射器天线的直径的装置和方法。 该装置包括：设置单元，用于在从外部接收反射器天线时设置反射器天线的电特性值，用于接收频率的参数输入单元，天线直径可变值，天线效率，边缘锥度（ET） 覆盖（EOC）角度作为要容纳在反射器天线中的多个频率中的每一个的参数，图形生成器，用于在一个矩形坐标上生成表示相对于基于EOC角度的天线直径和EOC方向性之间的关系的曲线图 关于通过参数输入单元接收的每个频率的参数，天线直径确定单元，用于通过使用由图形生成单元生成的图形来确定同时满足反射天线中容纳的频率的预设EOC方向性的天线直径 以及用于映射和输出由该图形生成的图形的图形输出单元 生成单元，其具有天线直径轴和EOC方向轴的一个矩形坐标，从而表示由图中天线直径确定单元确定的天线直径。

公开(公告)号：US07324465B2

公开(公告)日：2008-01-29

申请号：US10399330

申请日：2001-10-17

申请人： Kwang-Jae Lim ,  Soo-Young Kim ,  Ho-Jin Lee ,  Moon-Hee You

发明人： Kwang-Jae Lim ,  Soo-Young Kim ,  Ho-Jin Lee ,  Moon-Hee You

IPC分类号： H04Q7/00

CPC分类号： H04W74/006 ,  H04B7/18558 ,  H04W74/0833 ,  H04W84/06

摘要： The present invention relates to Random Access Channel (RACH) access apparatus for mobile satellite communication system and method therefor. The method for accessing random access channel (RACH) on satellite system, random access channel (RACH) carrying message from a plurality of mobile stations to the satellite system, the method includes the steps of: receiving preamble and the message, the message successively transmitted with the preamble from the plurality of mobile stations; and transmitting acquisition response signal corresponding to the preamble or the message to the plurality of mobile stations. Accordingly, success of packet reception of satellite system is improved and transmission delay is reduced.

摘要翻译： 本发明涉及用于移动卫星通信系统的随机接入信道（RACH）接入装置及其方法。 用于在卫星系统上接入随机接入信道（RACH），从多个移动台携带消息的随机接入信道（RACH）到卫星系统的方法，所述方法包括以下步骤：接收前同步码和所述消息，所述消息被连续发送 来自多个移动站的前导码; 以及将与所述前导码或所述消息对应的获取响应信号发送到所述多个移动站。 因此，提高卫星系统的分组接收成功，减少传输延迟。

公开(公告)号：US20070297512A1

公开(公告)日：2007-12-27

申请号：US11783599

申请日：2007-04-10

申请人： Ho-Jin Lee ,  Sang-Jo Lee ,  Si-hwa Lee ,  Do-hyung Kim

发明人： Ho-Jin Lee ,  Sang-Jo Lee ,  Si-hwa Lee ,  Do-hyung Kim

IPC分类号： H04B1/66

CPC分类号： H04N19/56 ,  H04N19/51

摘要： A motion estimation method, medium, and system with fast motion estimation. The motion estimation method includes comparing a cost indicating a difference between a current block of a current image and a block of a reference image specified by a starting point with a predetermined threshold and selectively searching for the best matching block of the current block from the starting point according to the comparison result.

摘要翻译： 具有快速运动估计的运动估计方法，介质和系统。 运动估计方法包括将当前图像的当前块与由起始点指定的参考图像的块之间的差指定为预定阈值的成本进行比较，并且从开始选择性地搜索当前块的最佳匹配块 根据比较结果。

公开(公告)号：US07286824B2

公开(公告)日：2007-10-23

申请号：US10916965

申请日：2004-08-11

申请人： Ki-Dong Lee ,  Ho-Jin Lee ,  Ho-Kyom Kim ,  Deock-Gil Oh

发明人： Ki-Dong Lee ,  Ho-Jin Lee ,  Ho-Kyom Kim ,  Deock-Gil Oh

IPC分类号： H04Q7/20

CPC分类号： H04B7/18532

摘要： A method for controlling data transmission rate in order to save waste of resources due to Non-Line Of Sight (NLOS) region when a mobile terminal passes through the NLOS region in an interactive satellite communication system is disclosed. The method includes the steps of setting at least one threshold; at a Network Control Center (NCC) adjusting allocated resources based on the Constant Resources Allocation (CRA) after detecting whether Satellite Access Control is lost or not; compensating transmission delay by reallocating if the mobile terminal returns from the NLOS region within a first threshold duration, wherein the mobile terminal maintains the fine sync state during the first threshold duration; and deallocating all resources allocated based on the CRA if the mobile terminal does not return from the NLOS region within the first threshold duration.

摘要翻译： 公开了一种用于控制数据传输速率的方法，以便在移动终端通过交互式卫星通信系统中的NLOS区域时节省由于非视线（NLOS）区域引起的资源浪费。 该方法包括以下步骤：设置至少一个阈值; 在网络控制中心（NCC）检测到卫星接入控制是否丢失之后，根据恒定资源分配（CRA）调整分配的资源; 如果所述移动终端在第一阈值持续时间内从所述NLOS区域返回，则通过重新分配来补偿传输延迟，其中所述移动终端在所述第一阈值持续时间期间保持所述精细同步状态; 并且如果移动终端在第一阈值持续时间内没有从NLOS区域返回，则释放基于CRA分配的所有资源。

公开(公告)号：US07248654B2

公开(公告)日：2007-07-24

申请号：US10856052

申请日：2004-05-27

申请人： Yun-Jeong Song ,  Young-Wan Kim ,  Ho-Jin Lee

发明人： Yun-Jeong Song ,  Young-Wan Kim ,  Ho-Jin Lee

IPC分类号： H04L27/08

CPC分类号： H04L27/2647 ,  H04L27/3809 ,  H04L2027/0016

摘要： An apparatus and a method for controlling a gain of I-channel signal and compensating Q-channel signal in response to the gain imbalance based on the gain-controlled I-channel signal as a reference channel signal is disclosed. The apparatus includes: an auto gain controller for controlling a gain of a signal selected from the I-channel signal and the Q-channel signal to have a predetermined amplitude, thereby generating a gain-controlled signal; a detector for detecting a gain imbalance between the gain-controlled signal and the remaining channel signal; and a compensator for compensating the gain imbalance of the remaining channel signal based on the detected gain imbalance.

摘要翻译： 公开了一种用于基于作为参考信道信号的增益控制的I信道信号来响应于增益不平衡来控制I信道信号的增益和补偿Q信道信号的装置和方法。 该装置包括：自动增益控制器，用于控制从I信道信号和Q信道信号中选出的信号的增益以具有预定幅度，由此产生增益控制信号; 检测器，用于检测增益控制信号和剩余信道信号之间的增益不平衡; 以及补偿器，用于基于检测到的增益不平衡来补偿剩余通道信号的增益不平衡。

公开(公告)号：US20070127599A1

公开(公告)日：2007-06-07

申请号：US11605646

申请日：2006-11-29

申请人： Yung-Jeong Song ,  Deock-Gil Oh ,  Ho-Jin Lee

发明人： Yung-Jeong Song ,  Deock-Gil Oh ,  Ho-Jin Lee

IPC分类号： H04L27/00 ,  H03D1/04

CPC分类号： H04L27/3863 ,  H03D3/009 ,  H04B1/12

摘要： An apparatus and method for phase recovery and I/O imbalance compensation in a quadrature demodulating receiver are provided. The apparatus includes: a phase error compensating unit for compensating a phase error for a reference channel which is one of the I channel and the Q channel; and a phase imbalance compensation unit for compensating a phase imbalance between the reference channel and a target channel that is the other of the I channel and the Q channel for the target channel based on the reference channel that is the phase error compensated channel at the phase error compensating unit.

摘要翻译： 提供了一种用于正交解调接收机中的相位恢复和I / O不平衡补偿的装置和方法。 该装置包括：相位误差补偿单元，用于补偿作为I信道和Q信道之一的参考信道的相位误差; 以及相位不平衡补偿单元，用于基于作为相位的相位误差补偿信道的参考信道来补偿参考信道和作为目标信道的I信道和Q信道中的另一个的目标信道之间的相位不平衡 误差补偿单元。

公开(公告)号：US20070084248A1

公开(公告)日：2007-04-19

申请号：US11516205

申请日：2006-09-06

申请人： Jin-Haing Kim ,  Ho-Jin Lee ,  Mun-Hyun Do ,  Jae-Hyeon Seong ,  Yun-Ho Kim

发明人： Jin-Haing Kim ,  Ho-Jin Lee ,  Mun-Hyun Do ,  Jae-Hyeon Seong ,  Yun-Ho Kim

IPC分类号： C03B37/07 ,  C03B37/018 ,  F27B1/26

CPC分类号： C03B37/0142 ,  C03B2207/64 ,  C03B2207/66 ,  C03B2207/70 ,  Y02P40/57

摘要： Disclosed is a vapor axial deposition apparatus. The vapor axial deposition apparatus includes a first torch, a second torch, a temperature measuring unit and a controller unit. The first torch deposits soot on a distal end of a soot preform aligned with a vertical axis to thereby grow a core. The second torch deposits soot on an outer circumferential surface of the core to thereby grow a clad. The temperature measuring unit detects the temperature distribution of an end portion of the soot preform along the vertical axis. The controller unit determines first and second relative maximum temperatures T1 and T3, and relative minimum temperature T2 between T1 and T3 in the detected temperature distribution, and controls T1 to be within a predetermined range and the greater one of the difference (T1−T2) and (T3−T2) to not exceed a predetermined temperature.

摘要翻译： 公开了一种蒸气轴向沉积装置。 蒸气轴向沉积装置包括第一炬，第二炬，温度测量单元和控制器单元。 第一个火炬放置在烟炱预制件的远端上与竖直轴线对齐，从而生长芯。 第二焊炬在芯的外周表面上沉积烟灰，从而生长包层。 温度测量单元沿垂直轴检测煤烟预制件的端部的温度分布。 控制器单元在检测到的温度分布中确定第一和第二相对最高温度T 1和T 3以及T 1和T 3之间的相对最低温度T 2，并且控制T 1在预定范围内，并且较大的 差（T 1 -T 2）和（T 3 -T 2）不超过预定温度。

公开(公告)号：US07203251B2

公开(公告)日：2007-04-10

申请号：US10960415

申请日：2004-10-06

申请人： Young-Wan Kim ,  Yun-Jeong Song ,  Nae-Soo Kim ,  Ho-Jin Lee

发明人： Young-Wan Kim ,  Yun-Jeong Song ,  Nae-Soo Kim ,  Ho-Jin Lee

IPC分类号： H04L27/00 ,  H00B7/212

CPC分类号： H04L27/0014 ,  H04B1/28 ,  H04L2027/0028 ,  H04L2027/0057

摘要： The present invention provides an apparatus for compensating a phase difference of a receiver, the apparatus including: an accumulating unit for accumulating a radio frequency (RF) input signal and generating an accumulated RF signal in order to minimize an effect of a background noise of the RF input signal; a early-local oscillating unit for generating a phase-early local oscillated signal based on a local oscillated signal of the receiver; a late-local oscillating unit for generating a phase-late local oscillated signal based on a local oscillated signal of the receiver; a phase early-late compensating unit for compensating a phase early-late based on the accumulated RF input signal and the phase-early and phase-late local oscillated signals; a look-up table data mapping unit for controlling a phase of the local oscillated signal with respect to a phase difference; and a feedback transmitting unit for transmitting a phase compensating data to the local oscillator.

摘要翻译： 本发明提供了一种用于补偿接收机的相位差的装置，该装置包括：累加单元，用于累积射频（RF）输入信号并产生累积的RF信号，以便最小化背景噪声的影响 RF输入信号; 早期本地振荡单元，用于基于接收机的本地振荡信号产生相位早期本地振荡信号; 一个后局部振荡单元，用于基于接收器的本地振荡信号产生相位较晚的本地振荡信号; 一个相位早期补偿单元，用于基于累积的RF输入信号和相位早和相位晚的本地振荡信号来补偿相位的早期阶段; 查找表数据映射单元，用于控制相对于相位差的本地振荡信号的相位; 以及用于将相位补偿数据发送到本地振荡器的反馈发送单元。

公开(公告)号：US20060133314A1

公开(公告)日：2006-06-22

申请号：US11305587

申请日：2005-12-16

申请人： Ki-Dong Lee ,  Deock-Gil Oh ,  Ho-Jin Lee

发明人： Ki-Dong Lee ,  Deock-Gil Oh ,  Ho-Jin Lee

IPC分类号： H04Q7/00 ,  H04L12/43

CPC分类号： H04L41/0896 ,  H04W28/20

摘要： Provided are an apparatus for estimating an increment in the number of packets arriving at a transmission queue of each terminal and allocating resources to terminals based on the increment in a Demand Assignment Multiple Access (DAMA) satellite communication system, and a method thereof. The method, includes the steps of: a) comparing a summation of requested time slot quantities of terminals with a total number of available time slots; and b) allocating the time slots as much as the requested time slot quantity to each terminal and allocating remaining time slots additionally in proportion to an estimated increase in the number of packets arriving at a transmission queue of each terminal. The apparatus can raise efficiency of resources allocation in DAMA communications and reduce the packet transmission time in a terminal transmission queue.

摘要翻译： 提供了一种用于估计到达每个终端的传输队列的分组数量的增量的装置，并且基于在请求分配多路访问（DAMA）卫星通信系统中的增量向终端分配资源及其方法。 该方法包括以下步骤：a）将所请求的终端时隙量的总和与可用时隙的总数进行比较; 以及b）将所请求的时隙数量的时隙分配给每个终端，并且分配剩余时隙，以与到达每个终端的传输队列的分组数量的估计增加成比例地分配剩余时隙。 该装置可以提高DAMA通信中资源分配的效率，并减少终端传输队列中的分组传输时间。

公开(公告)号：US20050141654A1

公开(公告)日：2005-06-30

申请号：US10960415

申请日：2004-10-06

申请人： Young-Wan Kim ,  Yun-Jeong Song ,  Nae-Soo Kim ,  Ho-Jin Lee

发明人： Young-Wan Kim ,  Yun-Jeong Song ,  Nae-Soo Kim ,  Ho-Jin Lee

IPC分类号： H04B1/28 ,  H04L27/00 ,  H04L27/06

CPC分类号： H04L27/0014 ,  H04B1/28 ,  H04L2027/0028 ,  H04L2027/0057

摘要： The present invention provides an apparatus for compensating a phase difference of a receiver, the apparatus including: an accumulating unit for accumulating a radio frequency (RF) input signal and generating an accumulated RF signal in order to minimize an effect of a background noise of the RF input signal; a early-local oscillating unit for generating a phase-early local oscillated signal based on a local oscillated signal of the receiver; a late-local oscillating unit for generating a phase-late local oscillated signal based on a local oscillated signal of the receiver; a phase early-late compensating unit for compensating a phase early-late based on the accumulated RF input signal and the phase-early and phase-late local oscillated signals; a look-up table data mapping unit for controlling a phase of the local oscillated signal with respect to a phase difference; and a feedback transmitting unit for transmitting a phase compensating data to the local oscillator.

摘要翻译： 本发明提供了一种用于补偿接收机的相位差的装置，该装置包括：累加单元，用于累积射频（RF）输入信号并产生累积的RF信号，以便最小化背景噪声的影响 RF输入信号; 早期本地振荡单元，用于基于接收机的本地振荡信号产生相位早期本地振荡信号; 一个后局部振荡单元，用于基于接收器的本地振荡信号产生相位较晚的本地振荡信号; 一个相位早期补偿单元，用于基于累积的RF输入信号和相位早和相位晚的本地振荡信号来补偿相位的早期阶段; 查找表数据映射单元，用于控制相对于相位差的本地振荡信号的相位; 以及用于将相位补偿数据发送到本地振荡器的反馈发送单元。