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21. 发明授权

US08060126B2 Method of allocating transmission power based on symbol error rate for orthogonal space-time block codes in a distributed wireless communication system 有权
标题翻译：基于分布式无线通信系统中正交空时块码的符号误码率分配发射功率的方法
公开(公告)号：US08060126B2
公开(公告)日：2011-11-15
申请号：US12018887
申请日：2008-01-24
申请人： Shuangfeng Han , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
发明人： Shuangfeng Han , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
IPC分类号： H04B7/00 , H04B1/66 , H04C7/02
CPC分类号： H04W52/42 , H04W52/20
摘要： Disclosed is a device for allocating transmission power using a symbol error rate (SER) for orthogonal space-time block codes (OSTBC) in a wireless communication system. The device includes: a plurality of antennas, which are distributed geographically and independently linked to a central processing unit; a receiver to select an optimum subset of the SER performance, using a preset power allocation to each of available antenna subset combinations, and sending the selected subset to a transmitter; and a central processing unit to allocate power by applying an OSTBC symbol having a unit average power to the optimum subset from the receiver.
摘要翻译：公开了一种用于在无线通信系统中使用正交空时块码（OSTBC）的符号错误率（SER）来分配发送功率的装置。该设备包括：多个天线，分布在地理上和独立地连接到中央处理单元; 使用对每个可用天线子组合的预设功率分配以及将所选择的子集发送到发射机的接收机来选择SER性能的最佳子集; 以及中央处理单元，通过从接收器向最佳子集应用具有单位平均功率的OSTBC符号来分配功率。

22. 发明申请

US20080182611A1 METHOD OF ALLOCATING TRANSMISSION POWER BASED ON SYMBOL ERROR RATE FOR ORTHOGONAL SPACE-TIME BLOCK CODES IN A DISTRIBUTED WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：基于分布式无线通信系统中正交空时块的符号误码率分配传输功率的方法
公开(公告)号：US20080182611A1
公开(公告)日：2008-07-31
申请号：US12018887
申请日：2008-01-24
申请人： Shuangfeng Han , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
发明人： Shuangfeng Han , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
IPC分类号： H04B7/00
CPC分类号： H04W52/42 , H04W52/20
摘要： Disclosed is a device for allocating transmission power using a symbol error rate (SER) for orthogonal space-time block codes (OSTBC) in a wireless communication system. The device includes: a plurality of antennas, which are distributed geographically and independently linked to a central processing unit; a receiver to select an optimum subset of the SER performance, using a preset power allocation to each of available antenna subset combinations, and sending the selected subset to a transmitter; and a central processing unit to allocate power by applying an OSTBC symbol having a unit average power to the optimum subset from the receiver.
摘要翻译：公开了一种用于在无线通信系统中使用正交空时块码（OSTBC）的符号错误率（SER）来分配发送功率的装置。该设备包括：多个天线，分布在地理上和独立地连接到中央处理单元; 使用对每个可用天线子组合的预设功率分配以及将所选择的子集发送到发射机的接收机来选择SER性能的最佳子集; 以及中央处理单元，通过从接收器向最佳子集应用具有单位平均功率的OSTBC符号来分配功率。

23. 发明申请

US20080145057A1 Method and system for generating switching control signal separating transmission signal in optical repeater employing TDD scheme 失效
标题翻译：采用TDD方案的光中继器生成切换控制信号分离传输信号的方法和系统
公开(公告)号：US20080145057A1
公开(公告)日：2008-06-19
申请号：US12001632
申请日：2007-12-12
申请人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
发明人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
IPC分类号： H04J14/08 , H04B10/00
CPC分类号： H04W88/085 , H04Q11/0067 , H04Q2011/0088
摘要： Disclosed are a method and a system for generating switching control signal separating transmission signal on an access point and a mobile communication terminal in an optical repeater employing, for example, a TDD scheme. The method includes the steps of generating a control signal for generating a switching control signal in transmitting data from the AP and transmitting the control information to a remote during an idle time interval, detecting synchronization information on the downlink signal and time-delay information from the control information, delaying a time interval between the synchronization information and a starting point of the downlink signal, generating the switching control signal for the downlink signal according to the transmission time information of the downlink signal, and performing a switching operation according to the switching control signal and setting a downlink path.
摘要翻译：公开了一种用于在采用例如TDD方案的光中继器中产生在接入点和移动通信终端上分离传输信号的切换控制信号的方法和系统。该方法包括以下步骤：在空闲时间间隔期间产生用于产生切换控制信号以从AP发送数据并将控制信息发送给远端，检测下行链路信号的同步信息和来自控制信息，延迟同步信息和下行链路信号的起始点之间的时间间隔，根据下行链路信号的发送时间信息生成下行链路信号的切换控制信号，根据切换控制进行切换动作信号并设置下行链路路径。

24. 发明授权

US08134945B2 Apparatus and method for increasing cell capacity through optional signal combining between relay stations in a cellular system using wired relay stations 有权
标题翻译：通过使用有线中继站的蜂窝系统中的中继站之间的可选信号组合来增加小区容量的装置和方法
公开(公告)号：US08134945B2
公开(公告)日：2012-03-13
申请号：US11965804
申请日：2007-12-28
申请人： Byung-Jik Kim , Seong-Taek Hwang , Won-Jin Sung , Jin-Woo Choe , Jong-Hyun Park , Jong-Hyun Kim
发明人： Byung-Jik Kim , Seong-Taek Hwang , Won-Jin Sung , Jin-Woo Choe , Jong-Hyun Park , Jong-Hyun Kim
IPC分类号： H04B7/00 , H04B7/14 , H04B7/185 , H04B1/00 , H04B17/00 , H04B15/00 , H04W4/00 , H03C1/62
CPC分类号： H04B7/026
摘要： A method, apparatus and system for increasing cell capacity through optional signal combining between Relay Stations (RSs) in a cellular system using wired RSs is disclosed. The method includes receiving, by a Base Station (BS), an average Carrier-to-Interference ratio (C/I) value of transmission signals from Mobile Stations (MSs) located inside each coverage area, being fed back from the RSs or the MSs in its corresponding cell; classifying the MSs into two groups according to the C/I value; performing resource allocation satisfying a minimum data rate from a corresponding RS, for MSs belonging to a group having a C/I value greater than a preset threshold Γ among the classified groups; performing resource allocation by applying an optional signal combining scheme taking into account two RSs having a highest C/I value, for MSs belonging to a group having a C/I value below the threshold among the classified groups; and allocating all unallocated subchannels of each individual RS in an order of an MS having a high C/I value among MSs of a corresponding RS until there is no more unallocated subchannel of each RS.
摘要翻译：公开了一种通过在使用有线RS的蜂窝系统中的继电器站（RS）之间的可选信号组合来增加小区容量的方法，装置和系统。该方法包括由基站（BS）从位于每个覆盖区域内的移动站（MS）发送的信号的平均载波干扰比（C / I）值从RS或 MS在其相应的细胞; 根据C / I值将MS分为两组; 对于属于具有大于预设阈值Ggr的C / I值的组的MS执行从对应的RS执行满足最小数据速率的资源分配; 在分类集团中; 通过对分类组中具有C / I值低于阈值的组的MS应用考虑了具有最高C / I值的两个RS的可选信号组合方案来执行资源分配; 并且以对应RS的MS中的具有高C / I值的MS的顺序分配每个单独RS的所有未分配子信道，直到每个RS不再有未分配的子信道。

25. 发明申请

US20080159743A1 Method and system for controlling remote in a TDD optical repeater 有权
标题翻译：用于在TDD光中继器中控制远端的方法和系统
公开(公告)号：US20080159743A1
公开(公告)日：2008-07-03
申请号：US11983483
申请日：2007-11-09
申请人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
发明人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
IPC分类号： H04J14/02 , H04J14/08
CPC分类号： H04J14/02 , H04J3/0682 , H04W88/085
摘要： A method and apparatus for transmitting data to an Access Point (AP) and a Mobile Station (MS) in a Time Division Duplex (TDD) optical repeater. A main donor generates a control frame for controlling a remote, upon receipt of data from the AP, and transmits the control frame to the remote during a non-downlink transmission period. The remote analyzes the control frame received from the main donor, detects sync information about a downlink signal and an uplink signal, and remote control information from the analyzed control frame, performs a control operation according to the detected remote control information, and generates a status frame for notifying the main donor of the status of the remote upon receipt of data from the MS. The status frame is transmitted from the remote to the main donor during a non-uplink transmission period.
摘要翻译：一种用于向时分双工（TDD）光中继器中的接入点（AP）和移动台（MS）发送数据的方法和装置。在从AP接收到数据时，主要供体生成用于控制远程的控制帧，并且在非下行链路传输周期期间将控制帧发送到远程。遥控器分析从主供体接收到的控制帧，检测关于下行链路信号和上行链路信号的同步信息，以及来自分析的控制帧的遥控信息，根据检测到的遥控信息执行控制操作，并且生成状态框架，用于在从MS接收到数据时通知主要供体的远程状态。在非上行链路传输期间，状态帧从远端发送到主供体。

26. 发明申请

US20100141788A1 APPARATUS AND METHOD FOR RECOGNIZING CHARACTERS USING A CAMERA 有权
标题翻译：使用摄像机识别字符的装置和方法
公开(公告)号：US20100141788A1
公开(公告)日：2010-06-10
申请号：US12632118
申请日：2009-12-07
申请人： Seong-Taek HWANG , Sang-Wook Oh , Hyun-Soo Kim , Sang-Ho Kim , Hee-Min Kwon , Jun-Je Oh , Byung-Jik Kim
发明人： Seong-Taek HWANG , Sang-Wook Oh , Hyun-Soo Kim , Sang-Ho Kim , Hee-Min Kwon , Jun-Je Oh , Byung-Jik Kim
IPC分类号： H04N5/225 , G06K9/68 , G06F17/30
CPC分类号： H04N5/225 , G06K9/228 , G06K9/723 , G06K2209/01
摘要： An apparatus and method for recognizing characters of an image captured using a camera in a mobile terminal are provided, wherein an image of a signboard is captured, a text area is extracted from the captured image of the signboard, characters are recognized from the extracted text area, similar characters up to a predetermined priority level are generated for each recognized character of the extracted text area, location information of an area within a predetermined range from a current position of a user is acquired, store names are extracted from the location information, text is generated by combining the similar characters according to weights, the text are compared with the extracted store names, and a comparison result is output.
摘要翻译：提供一种用于识别在移动终端中使用相机拍摄的图像的字符的装置和方法，其中捕获招牌的图像，从所述招牌的所捕获的图像中提取文本区域，从所提取的文本中识别字符为所提取的文本区域的每个识别字符生成直到预定优先级的类似字符，获取来自用户的当前位置的预定范围内的区域的位置信息，从位置信息中提取存储名称，通过根据权重组合相似的字符来生成文本，将文本与提取的商店名称进行比较，并输出比较结果。

27. 发明申请

US20090185511A1 METHOD FOR CONCURRENTLY TRANSMITTING AND RECEIVING DATA THROUGH HETEROGENEOUS COMMUNICATION NETWORKS AND APPARATUS USING THE SAME 有权
标题翻译：通过异构通信网络并发数据接收数据的方法及其使用方法
公开(公告)号：US20090185511A1
公开(公告)日：2009-07-23
申请号：US12269986
申请日：2008-11-13
申请人： Jae-Hoon LEE , Ki-Uk Song , Seong-Taek Hwang , Byung-Jik Kim
发明人： Jae-Hoon LEE , Ki-Uk Song , Seong-Taek Hwang , Byung-Jik Kim
IPC分类号： H04J4/00 , H04J3/00
CPC分类号： H04L5/1469 , H04L5/0007 , H04L5/0044
摘要： A method for transmitting/receiving data in an orthogonal frequency division multiple access-time division duplex (OFDMA-TDD) scheme. A first uplink signal and a first downlink signal of a specific band are periodically transmitted/received within a time-divided section. A second uplink signal and a second downlink signal are periodically transmitted/received, and the second signal is of a band other than the specific band, within the time-divided section, wherein, during a time section in which the first downlink signal is transmitted, the second uplink signal is received.
摘要翻译：一种用于在正交频分多址接入时分双工（OFDMA-TDD）方案中发送/接收数据的方法。在分时段内周期性地发送/接收特定频带的第一上行链路信号和第一下行链路信号。周期性地发送/接收第二上行链路信号和第二下行链路信号，并且第二信号是在分时段内的特定频带之外的频带，其中在发送第一下行链路信号的时间段期间，接收第二上行链路信号。

28. 发明申请

US20070292141A1 Optical signal transmitter and optical wireless communications network using it 审中-公开
标题翻译：光信号发射机和光无线通信网络使用它
公开(公告)号：US20070292141A1
公开(公告)日：2007-12-20
申请号：US11804815
申请日：2007-05-21
申请人： Byung-Jik Kim , Seong-Taek Hwang , Kyu-Man Cho , Hyeong-Jun Huh , Kang-Hyuk Kwon
发明人： Byung-Jik Kim , Seong-Taek Hwang , Kyu-Man Cho , Hyeong-Jun Huh , Kang-Hyuk Kwon
IPC分类号： H04B10/04
CPC分类号： H04B10/116 , H04B10/1149
摘要： An optical wireless communications network connects a plurality of communication cells, which are defined by dividing a local communication area, for enabling optical wireless communication in each of the communication cells. An optical signal transmitter is installed in each communication cell for irradiating the cell with a data-modulated optical signal to perform data transmission to a terminal located therein. The optical signal transmitter comprises an optical signal source for outputting the data-modulated optical signal, and an optical signal diffuser with a concave inside surface facing the output end of the optical signal source for diffusing and reflecting the data-modulated optical signal to irradiate the cell.
摘要翻译：光无线通信网络连接通过划分本地通信区域来定义的多个通信小区，以便在每个通信小区中实现光无线通信。光信号发送器安装在每个通信单元中，用于利用数据调制的光信号照射小区，以对位于其中的终端执行数据传输。光信号发射机包括用于输出数据调制光信号的光信号源，以及具有面向光信号源的输出端的凹内表面的光信号扩散器，用于扩散和反射数据调制光信号以照射细胞。

29. 发明申请

US20060072924A1 Duo-binary optical transmitter tolerant to chromatic dispersion 审中-公开
标题翻译：二进制光发射机容忍色散
公开(公告)号：US20060072924A1
公开(公告)日：2006-04-06
申请号：US11216761
申请日：2005-08-31
申请人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang
发明人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang
IPC分类号： H04B10/04
CPC分类号： H04B10/2513 , H04B10/5167
摘要： A duo-binary optical transmitter tolerant to a chromatic dispersion includes a pre-coder for generating a first 2-level signal from input binary data and generating a second signal having a waveform obtained by inverting the first signal, a Mach-Zehnder Modulator (MZM) for generating a Differential Phase Shift Keying (DPSK) modulated optical signal by modulating an input light according to the first signal and the second signal, and a Delay Interferometer (DI) for splitting the DPSK modulated optical signal into a first split signal and a second split signal, delaying the second split signal, and generating a duo-binary optical signal by interfering the first split signal with the second delayed split signal, wherein a time required for delaying the second split signal is set to 0.5˜0.8 bit.
摘要翻译：一种容忍色散的双二进制光发射机包括一个预编码器，用于从输入的二进制数据产生第一个2电平信号，并产生具有通过反转第一个信号获得的波形的第二个信号，马赫 - 曾德调制器（MZM ），用于通过根据第一信号和第二信号调制输入光来产生差分相移键控（DPSK）调制光信号;以及延迟干涉仪（DI），用于将DPSK调制的光信号分离成第一分离信号和第二分割信号，延迟第二分割信号，以及通过用第二延迟分离信号干扰第一分离信号来产生二进制二进制光信号，其中延迟第二分割信号所需的时间被设置为0.5〜0.8比特。

30. 发明授权

US07995924B2 Method and system for generating switching control signal separating transmission signal in optical repeater employing TDD scheme 失效
标题翻译：采用TDD方案的光中继器生成切换控制信号分离传输信号的方法和系统
公开(公告)号：US07995924B2
公开(公告)日：2011-08-09
申请号：US12001632
申请日：2007-12-12
申请人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
发明人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
IPC分类号： H04B10/22 , H04J14/08
CPC分类号： H04W88/085 , H04Q11/0067 , H04Q2011/0088
摘要： Disclosed are a method and a system for generating switching control signal separating transmission signal on an access point and a mobile communication terminal in an optical repeater employing, for example, a TDD scheme. The method includes the steps of generating a control signal for generating a switching control signal in transmitting data from the AP and transmitting the control information to a remote during an idle time interval, detecting synchronization information on the downlink signal and time-delay information from the control information, delaying a time interval between the synchronization information and a starting point of the downlink signal, generating the switching control signal for the downlink signal according to the transmission time information of the downlink signal, and performing a switching operation according to the switching control signal and setting a downlink path.
摘要翻译：公开了一种用于在采用例如TDD方案的光中继器中产生在接入点和移动通信终端上分离传输信号的切换控制信号的方法和系统。该方法包括以下步骤：在空闲时间间隔期间产生用于产生切换控制信号以从AP发送数据并将控制信息发送给远端，检测下行链路信号的同步信息和来自控制信息，延迟同步信息和下行链路信号的起始点之间的时间间隔，根据下行链路信号的发送时间信息生成下行链路信号的切换控制信号，根据切换控制进行切换动作信号并设置下行链路路径。

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