公开(公告)号：US20120263257A1

公开(公告)日：2012-10-18

申请号：US13449231

申请日：2012-04-17

申请人： Joon-Hyung KIM ,  Sung-Jun LEE ,  Jae-Ho JUNG

发明人： Joon-Hyung KIM ,  Sung-Jun LEE ,  Jae-Ho JUNG

IPC分类号： H04L25/49

CPC分类号： H04L27/2614 ,  H03F1/025

摘要： A signal amplifying apparatus, a wireless transmitting apparatus, and a signal amplifying method are provided. The signal amplifying apparatus modulates an envelope signal using a multi-bit quantizer, thereby increasing coding efficiency and tracking optimal supply voltage with respect to envelope variation due to the use of the multi-bit quantizer.

摘要翻译： 提供信号放大装置，无线发送装置和信号放大方法。 信号放大装置使用多位量化器对包络信号进行调制，由于使用多位量化器，相对于包络变化，提高了编码效率并跟踪最佳供电电压。

公开(公告)号：US20080151763A1

公开(公告)日：2008-06-26

申请号：US11951587

申请日：2007-12-06

申请人： Sung-Jun LEE ,  Jae-Ho JUNG ,  Hyeong-Geun PARK ,  Seong-Min KIM ,  Kwang-Chun LEE

发明人： Sung-Jun LEE ,  Jae-Ho JUNG ,  Hyeong-Geun PARK ,  Seong-Min KIM ,  Kwang-Chun LEE

IPC分类号： H04L12/26

CPC分类号： H04L43/50 ,  H04L41/145 ,  H04W24/08

摘要： Provided is a wired Multiple-Input Multiple-Output (MIMO) link tester. The wired link tester, includes: a simulating unit for constructing a wired link corresponding to a wireless link for a multiple-input multiple-output system and simulating wireless-link characteristics using each variable element located on the wired link; and a control means for prestoring a predetermined value of the variable element depending on the state change time and the number of the state changes and controlling the variable element according to the predetermined value of the variable element.

摘要翻译： 提供了一种有线多输入多输出（MIMO）链路测试仪。 有线链路测试器包括：模拟单元，用于构建对应于多输入多输出系统的无线链路的有线链路，并使用位于有线链路上的每个可变元件来模拟无线链路特性; 以及控制装置，用于根据状态改变时间和状态数量改变预定可变元件的预定值，并根据可变元件的预定值来控制可变元件。

公开(公告)号：US20080305810A1

公开(公告)日：2008-12-11

申请号：US12133582

申请日：2008-06-05

申请人： Sung-Jun LEE

发明人： Sung-Jun LEE

IPC分类号： H04Q7/20

CPC分类号： H04W4/021 ,  H04W4/029

摘要： A method and apparatus for providing a service using location information in a mobile communication terminal are provided. The method includes identifying service area information and operation information allocated to each corresponding area information from a Subscriber Identification Mobile (SIM) card, transmitting operation information allocated to area information representing a current location of the terminal to a service provider server, and receiving a service corresponding to the operation information from the service provider server.

摘要翻译： 提供了一种在移动通信终端中使用位置信息提供服务的方法和装置。 该方法包括从用户识别移动（SIM）卡识别分配给每个相应区域信息的服务区域信息和操作信息，将分配给表示终端的当前位置的区域信息的操作信息发送给服务提供商服务器，以及接收服务 对应于来自服务提供商服务器的操作信息。

公开(公告)号：US20110250867A1

公开(公告)日：2011-10-13

申请号：US13081937

申请日：2011-04-07

申请人： Sung-Jun LEE

发明人： Sung-Jun LEE

IPC分类号： H04W12/08

CPC分类号： H04M3/382 ,  H04W12/06 ,  H04W12/08 ,  H04W12/12

摘要： A method and an apparatus for restricting network access in a mobile communication terminal are provided. The method for restricting the network access in the mobile communication terminal includes when network access is attempted, receiving a password for a Subscriber Identification Module (SIM) card inserted into the terminal, transmitting the password to a SIM management server, receiving a password authentication result from the SIM management server, and determining whether to allow the network access according to the password authentication result.

摘要翻译： 提供了一种用于限制移动通信终端中的网络接入的方法和装置。 用于限制移动通信终端中的网络接入的方法包括当尝试网络接入时，接收插入终端的用户识别模块（SIM）卡的密码，将密码发送到SIM管理服务器，接收密码认证结果 从SIM管理服务器，并根据密码认证结果确定是否允许网络访问。

公开(公告)号：US20100093301A1

公开(公告)日：2010-04-15

申请号：US12492213

申请日：2009-06-26

申请人： Sung-Jun LEE ,  Seong-Min KIM ,  Taek-Jin HWANG ,  Kwang-Chun LEE

发明人： Sung-Jun LEE ,  Seong-Min KIM ,  Taek-Jin HWANG ,  Kwang-Chun LEE

IPC分类号： H04B1/26

CPC分类号： H04B1/28

摘要： A heterodyne receiver of a wireless communication system using an analog discrete-time signal processing is provided. The heterodyne receiver includes: a radio signal processing unit configured to extract a signal of a desired band from a received radio signal and convert the extracted signal into an intermediate frequency (IF) signal that is an integer multiple of a sample rate specified in a specification of the wireless communication system; a discrete-time signal processing unit configured to charge-sample the IF signal in unit of a predetermined time and perform an anti-aliasing filtering and a successive decimation on the charge-sampled signal, a final output rate according to the decimation being an integer multiple of the specified sample rate; and an analog-to-digital conversion unit configured to convert the successively-decimated analog signal into a digital signal.

摘要翻译： 提供了使用模拟离散时间信号处理的无线通信系统的外差接收机。 外差接收机包括：无线电信号处理单元，被配置为从接收到的无线电信号中提取期望频带的信号，并将提取的信号转换为中间频率（IF）信号，该中频（IF）信号是规范中规定的采样率的整数倍 的无线通信系统; 离散时间信号处理单元，被配置为以预定时间为单位对IF信号进行充电采样，并且对电荷采样信号执行抗混叠滤波和连续抽取，根据抽取的最终输出速率为整数 指定采样率的倍数; 以及模拟 - 数字转换单元，被配置为将连续抽取的模拟信号转换为数字信号。

公开(公告)号：US20120100820A1

公开(公告)日：2012-04-26

申请号：US13344029

申请日：2012-01-05

申请人： Sung-Jun LEE ,  Heon-Kook KWON ,  Myung-Don KIM ,  Hyun-Kyu CHUNG ,  Kwang-Chun LEE

发明人： Sung-Jun LEE ,  Heon-Kook KWON ,  Myung-Don KIM ,  Hyun-Kyu CHUNG ,  Kwang-Chun LEE

IPC分类号： H04B17/00

CPC分类号： H04L1/20

摘要： Provided are a method for measuring a variable bandwidth wireless channel, and a transmitter and a receiver therefor. The transmitter, includes: a pre-processing unit for performing variable over-sampling and band-limited filtering on an original sequence for measuring the wireless channel according to a pre-determined digital-to-analog (D/A) operation speed and measurement bandwidth, and creating and storing a probing sequence whose frequency is up-converted into a fixed transmitting intermediate frequency; and a real-time processing unit for transmitting a probing signal that the stored probing sequence is converted according to the D/A operation speed to the wireless channel.

摘要翻译： 提供了一种用于测量可变带宽无线信道的方法，以及用于其的发射机和接收机。 发射机包括：预处理单元，用于根据预定的数模（D / A）操作速度和测量对原始序列进行可变过采样和带限滤波，以测量无线信道 带宽，以及创建和存储其频率被上变频成固定发射中频的探测序列; 以及实时处理单元，用于将存储的探测序列根据D / A操作速度转换的探测信号发送到无线信道。

公开(公告)号：US20070298785A1

公开(公告)日：2007-12-27

申请号：US11769341

申请日：2007-06-27

申请人： Sung-Jun LEE

发明人： Sung-Jun LEE

IPC分类号： H04Q7/20

CPC分类号： G06F3/0233 ,  G06F3/018 ,  G06F3/04883 ,  G06F3/04886 ,  H04M2250/22 ,  H04M2250/70

摘要： Provided is a character input method and device for a mobile terminal. The device includes a touch sensor, a memory, and a controller. The touch sensor senses a user's touch, and generates a sensing signal. The memory stores at least one character mapping table for storing a mapping relationship between a character and a touch type. In a character input mode, the controller analyzes the sensing signal from the touch sensor, determines the touch type, accesses the character mapping table, and identifies an input character depending on the touch type.

摘要翻译： 提供了一种用于移动终端的字符输入方法和装置。 该装置包括触摸传感器，存储器和控制器。 触摸传感器感测用户的触摸，并产生感测信号。 存储器存储用于存储字符和触摸类型之间的映射关系的至少一个字符映射表。 在字符输入模式中，控制器分析来自触摸传感器的感测信号，确定触摸类型，访问字符映射表，并根据触摸类型识别输入字符。

公开(公告)号：US20110150139A1

公开(公告)日：2011-06-23

申请号：US12973231

申请日：2010-12-20

申请人： Sung-Jun LEE ,  Kwang-Chun LEE ,  Hyun-Kyu CHUNG

发明人： Sung-Jun LEE ,  Kwang-Chun LEE ,  Hyun-Kyu CHUNG

IPC分类号： H04L27/00

CPC分类号： H04B1/7113 ,  H04B17/14

摘要： The method includes performing a wired back-to-back test by forming M wired paths connecting one of the N transmission antennas with the M reception antennas through M cables, separating ith digital data corresponding to an ith receiver wired path from the plurality of digital data stored in the receiver wherein i is a natural number greater than 1 and smaller than M, extracting a time delay by decimating the separated ith digital data and performing sliding correlation on the decimated data, and extracting attenuation and phase characteristics of the ith receiver wired path by extracting samples after the time delay among the decimated samples.

摘要翻译： 该方法包括：通过M个电缆形成连接N个发送天线中的一个与M个接收天线的M个有线路径进行有线背靠背测试，该多个数字数据与第i个接收机有线路径相对应的数字数据 存储在接收机中，其中i是大于1且小于M的自然数，通过抽取分离的第i个数字数据并对抽取的数据执行滑动相关提取时间延迟，并且提取第i个接收机有线路径的衰减和相位特性 通过在抽取的样本之间的时间延迟之后提取样本。

公开(公告)号：US20080139126A1

公开(公告)日：2008-06-12

申请号：US11951522

申请日：2007-12-06

申请人： Sung-Jun LEE ,  Heon-Kook KWON ,  Myung-Don KIM ,  Hyun-Kyu CHUNG ,  Kwang-Chun LEE

发明人： Sung-Jun LEE ,  Heon-Kook KWON ,  Myung-Don KIM ,  Hyun-Kyu CHUNG ,  Kwang-Chun LEE

IPC分类号： H04B17/00

CPC分类号： H04L1/20

摘要： Provided are a method for measuring a variable bandwidth wireless channel, and a transmitter and a receiver therefor. The transmitter, includes: a pre-processing unit for performing variable over-sampling and band-limited filtering on an original sequence for measuring the wireless channel according to a pre-determined digital-to-analog (D/A) operation speed and measurement bandwidth, and creating and storing a probing sequence whose frequency is up-converted into a fixed transmitting intermediate frequency; and a real-time processing unit for transmitting a probing signal that the stored probing sequence is converted according to the D/A operation speed to the wireless channel.

摘要翻译： 提供了一种用于测量可变带宽无线信道的方法，以及用于其的发射机和接收机。 发射机包括：预处理单元，用于根据预定的数模（D / A）操作速度和测量对原始序列进行可变过采样和带限滤波，以测量无线信道 带宽，以及创建和存储其频率被上变频成固定发射中频的探测序列; 以及实时处理单元，用于将存储的探测序列根据D / A操作速度转换的探测信号发送到无线信道。

公开(公告)号：US20080051062A1

公开(公告)日：2008-02-28

申请号：US11842809

申请日：2007-08-21

申请人： Sung-Jun LEE

发明人： Sung-Jun LEE

IPC分类号： H04Q7/20

CPC分类号： H04W8/205 ,  H04L63/0853 ,  H04W8/245 ,  H04W12/04 ,  H04W12/06 ,  H04W48/08

摘要： Provided are an apparatus and a method for downloading Subscriber Identity Module (SIM) data in a mobile communication system, which includes an authentication server that stores authentication information and a list of registered networks; a service provider server that stores SIM data and transmits the SIM data in response to a request for the SIM data; and a mobile communication terminal that receives user authentication from the authenticating server, checks the list of the networks, allows a network, which is to be accessed, to be selected from among the list of the networks, and accesses the service provider server in the selected network so as to download the SIM data.

摘要翻译： 提供了一种用于在移动通信系统中下载用户识别模块（SIM）数据的装置和方法，其包括存储认证信息的认证服务器和注册网络的列表; 服务提供者服务器，其存储SIM卡数据，并响应SIM卡数据的请求发送SIM数据; 以及从所述认证服务器接收用户认证的移动通信终端，检查所述网络的列表，允许从所述网络列表中选择要访问的网络，并且在所述网络中访问所述服务提供商服务器 选择网络，以便下载SIM卡数据。