公开(公告)号：US07450854B2

公开(公告)日：2008-11-11

申请号：US10860718

申请日：2004-06-03

申请人： Jong-Hun Lee ,  Yun-Je Oh ,  Do-In Choi

发明人： Jong-Hun Lee ,  Yun-Je Oh ,  Do-In Choi

IPC分类号： H04B10/10 ,  H04K1/00

CPC分类号： H04B1/7163 ,  H04B10/1125

摘要： A high-speed wireless LAN system is disclosed. The system includes a mobile station for transmitting/receiving data encrypted by a predetermined encryption method, communicating the data to associated access points by an ultra wide-band (UWB) communication method, and communicating an encryption key according to the encryption method to said associated access points by an optical or infra-red (IR) communication method; the plurality of access points, installed in a plurality of predetermined service areas, for relaying between the mobile station and a gateway of a remote place by communicating the data and the encryption key with the mobile station located in the corresponding service area by the UWB and the optical or IR communication methods and transmitting/receiving the data and the encryption key to/from the gateway by an optical communication method; and the gateway for providing an optical interface between an internal network and an external network, being provided with a plurality of gateway sub-modules for transmitting/receiving the data and the encryption key by communicating with the plurality of access points by the optical communication method, and transmitting a subscriber service transmitted from the external network to the corresponding access point.

摘要翻译： 公开了一种高速无线LAN系统。 该系统包括用于发送/接收通过预定加密方法加密的数据的移动站，通过超宽带（UWB）通信方法将数据传送到相关联的接入点，并根据加密方法将加密密钥传送到所述相关联的 通过光或红外（IR）通信方式的接入点; 所述多个接入点安装在多个预定服务区域中，用于通过所述UWB与位于相应服务区域中的所述移动台通信所述数据和所述加密密钥来在所述移动台与所述远程地点的网关之间进行中继;以及 光或IR通信方法，并通过光通信方式向/从网关发送/接收数据和加密密钥; 以及用于在内部网络和外部网络之间提供光学接口的网关，其具有通过光学通信方法与多个接入点通信来发送/接收数据和加密密钥的多个网关子模块 并且将从外部网络发送的用户服务发送到对应的接入点。

公开(公告)号：US07450719B2

公开(公告)日：2008-11-11

申请号：US10759719

申请日：2004-01-16

申请人： Hak-Phil Lee ,  Se-Kang Park ,  Whan-Jin Sung ,  Young-Seok Kim ,  Yun-Je Oh ,  Jun-Sung An ,  Tae-Sung Park ,  Su-Hyung Kim

发明人： Hak-Phil Lee ,  Se-Kang Park ,  Whan-Jin Sung ,  Young-Seok Kim ,  Yun-Je Oh ,  Jun-Sung An ,  Tae-Sung Park ,  Su-Hyung Kim

IPC分类号： H04K1/00 ,  H04L9/00 ,  H04L9/30 ,  G06F7/04 ,  G06F17/30 ,  G06K9/00 ,  H04L9/32

CPC分类号： H04L9/0825 ,  H04L9/0844

摘要： A Gigabit Ethernet-based passive optical network that can reliably transmit data is disclosed. The network includes an OLT for receiving a public key through a transmission medium, encrypting a secret key by means of the received public key, transmitting the encrypted secret key, encrypting data by means of the secret key, and transmitting the encrypted data, the OLT being located in a service provider-side. The network also includes an ONT for transmitting the public key to the OLT, receiving the secret key transmitted from the OLT, decrypting the secret key by means of a private key, receiving the data, and decrypting the received data by means of the decrypted the secret key. The public key is used for encrypting the secret key. The secret key is encrypted by means of the public key. The data is encrypted by the OLT by means of the secret key.

摘要翻译： 公开了一种能够可靠地传输数据的千兆以太网无源光网络。 该网络包括通过传输介质接收公共密钥的OLT，借助于所接收的公开密钥对密钥进行加密，发送加密的秘密密钥，通过秘密密钥加密数据，并发送加密的数据，OLT 位于服务提供商方。 该网络还包括用于向OLT发送公共密钥的ONT，接收从OLT发送的秘密密钥，借助于私有密钥对密钥进行解密，接收数据，以及通过解密的密钥解密所接收的数据 密钥。 公钥用于加密密钥。 密钥通过公钥加密。 数据由OLT通过秘密密钥加密。

公开(公告)号：US20080252717A1

公开(公告)日：2008-10-16

申请号：US12082103

申请日：2008-04-07

申请人： Jae-Won Moon ,  Soo-Kyun Kim ,  Sung-Dae Cho ,  Yun-Je Oh ,  Hee-Won Jung ,  Nam-Ik Cho ,  Sang-Hwa Lee ,  Seong-Jong Ha

发明人： Jae-Won Moon ,  Soo-Kyun Kim ,  Sung-Dae Cho ,  Yun-Je Oh ,  Hee-Won Jung ,  Nam-Ik Cho ,  Sang-Hwa Lee ,  Seong-Jong Ha

IPC分类号： H04N7/00 ,  H04N5/225 ,  G06K9/36

CPC分类号： H04N5/23238 ,  G03B37/04 ,  G06K9/6201 ,  G06T7/20 ,  H04N5/23293 ,  H04N5/76

摘要： Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.

摘要翻译： 公开了一种拍摄全景图像的方法，包括以下步骤：通过用曝光补偿通过运动估计机构比较当前实时输入图像与先前图像来识别相应拍摄装置的移动，确定拍摄每个下一张图像的时间 通过确定拍摄方向上的移动是否达到预设的阈值，并且在所确定的时间通过手动或自动操作拍摄每个下一张照片。

公开(公告)号：US20080102881A1

公开(公告)日：2008-05-01

申请号：US11977612

申请日：2007-10-25

申请人： Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

发明人： Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

IPC分类号： H04Q7/20 ,  H04M1/00

CPC分类号： H01Q3/30 ,  H04B7/0443 ,  H04B7/0669 ,  H04B7/0691 ,  H04W52/346 ,  H04W52/42

摘要： An apparatus that adaptively allocates transmission power for beam-forming combined with orthogonal space time block codes in a distributed wireless communication system, the apparatus including: sub-arrays for beam-forming, which are geographically distributed and each of which includes a plurality of distributed antennas placed in random groups. A central processing unit provides predetermined combinable power allocation schemes according to subsets in a plurality of the sub-arrays, identifying performances of the schemes by using information on large-scale fading of each of the sub-arrays fed back from a receiving party, setting a subset having best performance as an optimal subset according to the identified performances, and performing power allocation according thereto.

摘要翻译： 一种在分布式无线通信系统中自适应地分配与正交空间时间块码组合的波束成形的发射功率的装置，该装置包括：地理分布的波束形成子阵列，每个子阵列包括多个分布式 天线放置在随机组中。 中央处理单元根据多个子阵列中的子集提供预定的可组合功率分配方案，通过使用关于从接收方反馈的每个子阵列的大规模衰落的信息来识别方案的性能，设置 根据所识别的性能，具有作为最佳子集的最佳性能的子集，以及根据所识别的性能执行功率分配。

公开(公告)号：US20080095461A1

公开(公告)日：2008-04-24

申请号：US11900279

申请日：2007-09-10

申请人： Han-Sang Kim ,  Chan-Yul Kim ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

发明人： Han-Sang Kim ,  Chan-Yul Kim ,  Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

IPC分类号： G06K9/40

CPC分类号： H04N19/86

摘要： An apparatus for calculating a boundary strength on a macroblock basis to determine a filter condition area in a deblocking filter includes a memory unit for storing a table containing a filter condition area value for a boundary strength calculation, which correspond to each of a type value of a current macroblock and a type value of a neighbor macroblock, and storing a boundary strength calculation method per filter condition area, the deblocking filter for performing the boundary strength calculation according to a filter condition area with respect to an input macroblock, and a controller for determining a filter condition area value corresponding to a type value of a current macroblock input to the deblocking filter and a type value of its neighbor macroblock using the table when the boundary strength calculation is performed with respect to the current macroblock input to the deblocking filter.

摘要翻译： 用于计算宏块基础上的边界强度以确定去块滤波器中的滤波器条件区域的装置包括：存储单元，用于存储包含用于边界强度计算的滤波器条件区域值的表，其对应于 当前宏块和相邻宏块的类型值，并且存储每个过滤条件区域的边界强度计算方法，用于根据关于输入宏块的过滤条件区域执行边界强度计算的去块滤波器，以及用于 当输入到去块滤波器的当前宏块执行边界强度计算时，使用该表确定与去块滤波器输入的当前宏块的类型值对应的滤波器条件面积值及其相邻宏块的类型值。

公开(公告)号：US20080095240A1

公开(公告)日：2008-04-24

申请号：US11893811

申请日：2007-08-17

申请人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

发明人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

IPC分类号： H04B1/66

CPC分类号： H04N19/523 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/43

摘要： Disclosed is a method for interpolating chrominance signals in a video encoder and a decoder. The method includes the steps of accessing a memory unit to load an integer pixel value with regard to a plurality of motion compensation blocks, searching for a location of a motion vector s to perform sub-pixel interpolation of chrominance signals regarding the blocks and performing ¼ sub-pixel interpolation by row-based and column-based shifting when the motion vector indicates a ¼ location pixel with regard to the blocks. Also disclosed is an apparatus for performing the interpolating method described and a computer program product which when loaded into a computer system performs the interpolating method described.

摘要翻译： 公开了一种用于在视频编码器和解码器中内插色度信号的方法。 该方法包括以下步骤：访问存储器单元以加载关于多个运动补偿块的整数像素值，搜索运动矢量s的位置以执行关于块的色度信号的子像素插值，并执行1/4 当运动矢量指示关于块的1/4位置像素时，通过基于行和列的移位进行子像素插值。 还公开了一种用于执行所描述的内插方法的装置和当被加载到计算机系统中时执行所描述的内插方法的计算机程序产品。

公开(公告)号：US07349633B2

公开(公告)日：2008-03-25

申请号：US10671196

申请日：2003-09-25

申请人： Jong-Hun Lee ,  Yun-Kyung Oh ,  Sang-Il Lee ,  Seo-Won Kwon ,  Jong-Hwa Lee ,  Yun-Je Oh

发明人： Jong-Hun Lee ,  Yun-Kyung Oh ,  Sang-Il Lee ,  Seo-Won Kwon ,  Jong-Hwa Lee ,  Yun-Je Oh

IPC分类号： H04B10/00

CPC分类号： H04B10/272

摘要： An access point in an optical fiber-based high-speed optical wireless network is disclosed. The access point includes an antenna for receiving communication requirement signals, a switch for selectively outputting a corresponding signal according to the communication requirement signals, a bias control unit for selectively outputting bias current with variable intensity according to whether an output of the signal from the switch exists or not, on the basis of a threshold current; a bias operation unit for outputting input signals to the antenna when an input bias current is smaller than the threshold current and for outputting signals received by the antenna when an input bias current is larger than the predetermined threshold current, and a semiconductor optical amplifier for selectively performing an optical detection function of converting optical signals, which have been received through a first optical fiber from an central station, into electrical signals and sending the converted electrical signals to the bias operation unit, when a current smaller than the threshold current is input to the bias operation unit, and an optical modulation function of transmitting signals output from the bias operation unit through a second optical fiber to the central station, when a current larger than the threshold current is input to the bias operation unit.

摘要翻译： 公开了一种基于光纤的高速光无线网络中的接入点。 接入点包括用于接收通信要求信号的天线，用于根据通信要求信号选择性地输出相应信号的开关;偏置控制单元，用于根据来自开关的信号的输出来选择性地输出具有可变强度的偏置电流 存在与否，以阈值电流为基础; 偏置操作单元，用于当输入偏置电流小于阈值电流时将输入信号输出到天线，并且用于当输入偏置电流大于预定阈值电流时输出由天线接收的信号;以及半导体光放大器，用于选择性地 执行光学检测功能，其将从第一光纤接收的光信号转换成电信号，并将转换的电信号发送到偏置操作单元，当小于阈值电流的电流被输入到 偏置操作单元，以及当大于阈值电流的电流被输入到偏置操作单元时，通过第二光纤向中心站发送从偏置操作单元输出的信号的光调制功能。

公开(公告)号：US20080056167A1

公开(公告)日：2008-03-06

申请号：US11737797

申请日：2007-04-20

申请人： Sang-Ho KIM ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jae-Hun Cho ,  Jae-Hoon Lee

发明人： Sang-Ho KIM ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jae-Hun Cho ,  Jae-Hoon Lee

IPC分类号： H04L5/14 ,  H04L5/16

CPC分类号： H04B10/25759 ,  H04W88/08 ,  H04W88/085

摘要： A radio-over-fiber (RoF) system and method for controlling a transmission time is provided. In a Time Division Duplex (TDD) wireless communication system comprising a Base Station (BS) having a donor and a remote connected thereto via am optical fiber, upstream and downstream Radio Frequency (RF) signals are transmitted and received, and by reliably transmitting a switch control signal to the remote and simultaneously compensating for a transmission time delay occurring in the optical cable, time synchronization of the upstream and downstream RF signals transmitted and received via antennas of the BS and the remote is controlled, thereby efficiently increasing the performance of a TDD wireless service system.

摘要翻译： 提供了一种用于控制传输时间的无线电光纤（RoF）系统和方法。 在包括具有供体的基站（BS）和经由光纤远程连接的基站（TDD）的时分双工（TDD）无线通信系统中，发送和接收上行和下行射频（RF）信号，并且通过可靠地发送 切换控制信号到远端，并同时补偿在光缆中发生的传输时延，控制通过BS和遥控器的天线发送和接收的上行和下行RF信号的时间同步，从而有效提高 TDD无线服务系统。

公开(公告)号：US20080037567A1

公开(公告)日：2008-02-14

申请号：US11891122

申请日：2007-08-09

申请人： Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim ,  Yun-Je Oh

发明人： Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim ,  Yun-Je Oh

IPC分类号： H04L12/28

CPC分类号： H04L12/4625 ,  H04L47/10 ,  H04L47/13 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/28 ,  H04L47/31 ,  H04L47/50 ,  H04L47/562

摘要： A method and apparatus for ensuring QoS in a synchronous Ethernet bridge are disclosed, in which a classifier classifies an ingress packet according to a PHB mapped to a DSCP value of the packet and provides the classified packet to one of a predetermined synchronous packet queue and a predetermined asynchronous packet queue, a buffer queue with a plurality of queues mapped to priority levels buffers the classified packet, a marker marks the buffered packet as a synchronous packet or, if the buffered packet is an asynchronous packet, marks the packet in a predetermined format corresponding to a priority level of the packet, and a synchronous Ethernet scheduler schedules the marked packet.

摘要翻译： 公开了一种用于确保同步以太网中的QoS的方法和装置，其中分类器根据映射到分组的DSCP值的PHB对入口分组进行分类，并将分类分组提供给预定的同步分组队列和 预定的异步分组队列，具有映射到优先级的多个队列的缓冲器队列缓冲分类分组，标记将缓冲分组标记为同步分组，或者如果缓冲分组是异步分组，则以预定格式标记分组 对应于分组的优先级，并且同步以太网调度器调度所标记的分组。

公开(公告)号：US07319818B2

公开(公告)日：2008-01-15

申请号：US11471152

申请日：2006-06-20

申请人： Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： Disclosed is a wavelength-division-multiplexed passive optical network using a wavelength-locked optical transmitter. The wavelength-division-multiplexed passive optical network (WDM PON) includes a central office, which includes a plurality of downstream optical transmitters for outputting downstream optical signals having wavelengths according to downstream injection lights, a wavelength division multiplexer including a plurality of de-multiplexing ports linked to the plurality of the downstream optical transmitters by one-to-one, and a multiplexing port linked with the feeder fiber and performing wavelength division multiplexing and wavelength division de-multiplexing, and at least one optical switch interposed between the downstream optical transmitters and the de-multiplexing ports, inputting a downstream band light output from a selected downstream optical transmitter to the multiplexing port, and inputting a downstream optical signal output from a remaining downstream optical transmitter, which is not selected, to the de-multiplexing port.

摘要翻译： 公开了使用波长锁定光发射机的波分复用无源光网络。 波分复用无源光网络（WDM PON）包括中心局，其包括多个下行光发射机，用于输出具有根据下游注入光的波长的下行光信号，波分多路复用器包括多个解复用 通过一对一连接到多个下游光发射机的端口，以及与馈电光纤链接并执行波分复用和波分解除复用的复用端口，以及插入在下行光发射机之间的至少一个光开关 以及解复用端口，将从所选择的下游光发射机输出的下行带光输入到复用端口，以及将未被选择的剩余下行光发射机输出的下行光信号输入到解复用端口。