公开(公告)号：US08774306B2

公开(公告)日：2014-07-08

申请号：US13217435

申请日：2011-08-25

申请人： Mi Kyung Oh ,  Cheol-ho Shin ,  Byoung Hak Kim ,  Seung Sik Lee ,  Sangsung Choi

发明人： Mi Kyung Oh ,  Cheol-ho Shin ,  Byoung Hak Kim ,  Seung Sik Lee ,  Sangsung Choi

IPC分类号： H04L27/10

CPC分类号： H04L27/12 ,  H04L25/4902

摘要： A transmitting apparatus groups a data bit sequence to groups each formed of a predetermined number of bits, modulates predetermined bits of one of groups through a frequency shift keying (FSK) modulation method, non-continuously aligns the FSK modulation signals, and transmits the non-continuous FSK modulation signals.

摘要翻译： 发送装置将数据比特序列分组成各自由预定比特数组成的组，通过频移键控（FSK）调制方式调制组中的一组的预定比特，不连续对准FSK调制信号， - 连续的FSK调制信号。

公开(公告)号：US08625654B2

公开(公告)日：2014-01-07

申请号：US13326185

申请日：2011-12-14

申请人： Jin Doo Jeong ,  Hyung Soo Lee ,  Sangsung Choi ,  Franklin Bien ,  Yun ho Choi ,  Young su Kim

发明人： Jin Doo Jeong ,  Hyung Soo Lee ,  Sangsung Choi ,  Franklin Bien ,  Yun ho Choi ,  Young su Kim

IPC分类号： H04B1/00

CPC分类号： H04B1/7174

摘要： A pulse generator of an ultra wideband (UWB) system includes: a plurality of delay cells for receiving pulses, delaying the received pulses for a predetermined time, and outputting the delayed pulses; and an edge combiner connected to output ends of the plurality of delay cells for receiving the delayed pulses from the plurality of delay cells, outputting fine pulses corresponding to the delayed time, and generating one impulse signal with the outputted fine pulses. The edge combiner includes a plurality of XOR gates for receiving a first delayed pulse and a second delayed pulse from an nth delay cell and an (n+1)th delay cell among the plurality of delay cells and generating fine pulses, respectively, and an OR gate for receiving a first fine pulse and a second fine pulse respectively output from a first XOR gate and a second XOR gate included in the plurality of XOR gates.

摘要翻译： 超宽带（UWB）系统的脉冲发生器包括：多个延迟单元，用于接收脉冲，将接收的脉冲延迟预定时间，并输出延迟的脉冲; 以及边缘组合器，其连接到所述多个延迟单元的输出端，用于接收来自所述多个延迟单元的延迟脉冲，输出与所述延迟时间相对应的精细脉冲，并且产生具有所输出的精细脉冲的一个脉冲信号。 边缘组合器包括多个XOR门，用于分别从多个延迟单元中的第n个延迟单元和第（n + 1）个延迟单元接收第一延迟脉冲和第二延迟脉冲，并分别产生精细脉冲，并且 或门，用于接收分别从包括在所述多个XOR门中的第一XOR门和第二XOR门输出的第一精细脉冲和第二精细脉冲。

公开(公告)号：US20100148849A1

公开(公告)日：2010-06-17

申请号：US12580360

申请日：2009-10-16

申请人： Seung Sik LEE ,  Bong Hyuk PARK ,  Seunghyun JANG ,  Sangsung CHOI ,  Changwan KIM

发明人： Seung Sik LEE ,  Bong Hyuk PARK ,  Seunghyun JANG ,  Sangsung CHOI ,  Changwan KIM

IPC分类号： H03K17/687

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D2200/0023 ,  H03D2200/0043 ,  H03D2200/0084

摘要： The present invention relates to a signal converting device and receiving device in a wireless communication system. The receiving device of the wireless communication system includes a differential signal converter for receiving a single ended radio frequency signal and converting it into a differential radio frequency signal, and a frequency down converter for down converting the differential radio frequency signal to down frequency signal.

摘要翻译： 本发明涉及无线通信系统中的信号转换装置和接收装置。 无线通信系统的接收装置包括用于接收单端射频信号并将其转换为差分射频信号的差分信号转换器，以及用于将差分射频信号下变频为降频信号的降频转换器。

公开(公告)号：US07400899B2

公开(公告)日：2008-07-15

申请号：US10895154

申请日：2004-07-19

申请人： Cheol-Ho Shin ,  Chang-Joo Kim ,  Hyung-Soo Lee ,  Sangsung Choi ,  Il-Kyoo Lee

发明人： Cheol-Ho Shin ,  Chang-Joo Kim ,  Hyung-Soo Lee ,  Sangsung Choi ,  Il-Kyoo Lee

IPC分类号： H04B7/00

CPC分类号： H04W52/12 ,  H04W52/20 ,  H04W52/24

摘要： Disclosed is a method for controlling a power level based on a packet error rate (PER) in a wireless personal area network (WPAN) system. The method for controlling a power level based on a packet error rate (PER) in a wireless personal area network (WPAN) system, includes the steps of: a) at a receiver, computing a PER of a packet in an initial check duration of PER (DP) wherein a transmission power level of the packet is set by a piconet coordinator (PNC); b) at the receiver, determining whether the computed PER satisfies a target PER, adjusting a target signal-to-interference ratio (SIR) and requesting a transmitter to adjust the initial transmission power level; and c) at the receiver, determining whether the number (N) of successive G is larger than a power control threshold, wherein G denotes DP satisfying the target PER, changing the target SIR based on the determination result whether the number (N) of successive G is larger than the power control threshold, and requesting the transmitter to adjust the possible transmission power level.

摘要翻译： 公开了一种基于无线个域网（WPAN）系统中的分组差错率（PER）来控制功率电平的方法。 基于无线个域网（WPAN）系统中的分组差错率（PER）来控制功率电平的方法包括以下步骤：a）在接收机处，在初始检测持续时间内计算分组的PER PER（DP），其中分组的发射功率电平由微微网协调器（PNC）设置; b）在接收机处，确定所计算的PER是否满足目标PER，调整目标信号干扰比（SIR）并请求发射机调整初始发射功率电平; 以及c）在接收器处，确定连续G的数量N是否大于功率控制阈值，其中G表示满足目标PER的DP，根据确定结果改变目标SIR，是否为（N） 连续G大于功率控制阈值，并请求发射机调整可能的发射功率电平。

公开(公告)号：US07391790B2

公开(公告)日：2008-06-24

申请号：US11015817

申请日：2004-12-20

申请人： Jong Won Kim ,  Sangsung Choi ,  Kwang Rob Park

发明人： Jong Won Kim ,  Sangsung Choi ,  Kwang Rob Park

IPC分类号： H04J3/16 ,  H04J3/22

CPC分类号： H04W88/02 ,  H04W84/12

摘要： A CardBus PC Card type wireless transmitting/receiving device performs a wireless data transmission/reception operation between a plurality of notebook PCs and an MB-OFDM (Multiband Orthogonal Frequency Division Multiplexing) UWB (Ultra Wide Band) type piconet coordinator. The device includes a wireless 1394 device, built in the notebook PC in the form of a CardBus PC Card, for converting a CardBus PC Card access signal of the notebook PC into an MB-OFDM UWB signal to transmit the converted MB-OFDM UWB signal, and inversely converting a received MB-OFDM UWB signal into a CardBus PC Card access signal of the notebook PC. The device can easily be built in a notebook PC, has a simple structure with a low cost, has a very high wireless transmission speed of 55 to 480 Mbps in comparison to the existing IEEE 802.11b type wireless 1394 bridge device in the form of an external IEEE 1394 adapter, and guarantees the QoS (Quality of Service) using the IEEE802.15.3 type MAC to provide a high-quality service to users.

摘要翻译： CardBus PC卡型无线发送/接收装置执行多个笔记本PC与MB-OFDM（多频带正交频分复用）UWB（超宽带）型微微网协调器之间的无线数据发送/接收操作。 该设备包括内置在CardBus PC卡形式的笔记本PC中的无线1394设备，用于将笔记本PC的CardBus PC卡接入信号转换为MB-OFDM UWB信号，以传输转换的MB-OFDM UWB信号 并且将接收的MB-OFDM UWB信号逆向转换成笔记本PC的CardBus PC卡访问信号。 该设备可以轻松构建在笔记本电脑中，具有成本低的简单结构，与现有的IEEE 802.11b型无线1394桥接器件相比，具有非常高的55至480 Mbps的无线传输速度 外部IEEE 1394适配器，并保证使用IEEE802.15.3类型MAC的QoS（服务质量）为用户提供高质量的服务。

公开(公告)号：US20060093021A1

公开(公告)日：2006-05-04

申请号：US11063583

申请日：2005-02-24

申请人： Bub Kang ,  Kyu Kang ,  Sangsung Choi ,  Kwang Park

发明人： Bub Kang ,  Kyu Kang ,  Sangsung Choi ,  Kwang Park

IPC分类号： H04B1/707

CPC分类号： H04B1/70735 ,  H04B1/7077 ,  H04B1/7183

摘要： There is provided a code acquisition device and method using a two-step search process in a DS-CDMA UWB modem. The device includes: an I/Q channel symbol generating unit for, generating a plurality (i) of nth I/Q channel symbols in a first search process and generating a plurality of nth I/Q channel symbols in a second search process; a spread code selecting unit for receiving the plurality of nth I/Q channel symbols in the first search process; an NNC2NS tap I/Q channel symbol matched filter unit for, in the second search process, receiving the plurality (i) of nth I/Q channel symbols; a switching unit for changing to a closed state of the second search process; and a super frame and symbol boundary time deciding unit for deciding a super frame time and a symbol boundary time.

摘要翻译： 提供了在DS-CDMA UWB调制解调器中使用两步搜索处理的代码获取装置和方法。 该装置包括：I / Q信道符号生成单元，用于在第一搜索处理中生成第n个第I / Q个信道符号的多个（i），并产生多个第n个 在第二搜索过程中的I / Q通道符号; 扩展码选择单元，用于在第一搜索处理中接收多个第n个I / Q信道符号; 用于在第二搜索过程中，接收多个（i）个第n个/第N个N / N个抽头I / Q通道符号匹配滤波器单元， SUB> I / Q通道符号; 用于切换到第二搜索处理的关闭状态的切换单元; 以及用于决定超帧时间和符号边界时间的超帧和符号边界时间决定单元。

公开(公告)号：USRE44334E1

公开(公告)日：2013-07-02

申请号：US13050669

申请日：2011-03-17

申请人： Yong Ae Jeon ,  Ji Eun Kim ,  Sangsung Choi ,  Kwang Roh Park

发明人： Yong Ae Jeon ,  Ji Eun Kim ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04J3/22

CPC分类号： H04W72/1263 ,  H04L47/14 ,  H04L47/50 ,  H04W84/18

摘要： An apparatus for transmitting WPAN (Wireless Personal Area Network) MAC (Medium Access Control) frames includes a transport frame management unit for creating MAC transport frames if data is generated from an upper protocol and application layer unit, classifying the created MAC transport frames by kinds, and managing the classified MAC transport frames by queues, a transport memory control unit for transmitting the transport frames at a high speed, and a transport frame transmission unit for responsible for the transmission of the transport frames by judging the transmission time of the frames.

公开(公告)号：US20130058360A1

公开(公告)日：2013-03-07

申请号：US13605230

申请日：2012-09-06

申请人： Mi Kyung Oh ,  Young Ae Jeon ,  Sangjae Lee ,  Jaehwan Kim ,  Cheol-ho Shin ,  Byoung Hak Kim ,  Seung Sik Lee ,  Sangsung Choi ,  Jae Young Kim

发明人： Mi Kyung Oh ,  Young Ae Jeon ,  Sangjae Lee ,  Jaehwan Kim ,  Cheol-ho Shin ,  Byoung Hak Kim ,  Seung Sik Lee ,  Sangsung Choi ,  Jae Young Kim

IPC分类号： H04L27/12 ,  H04L27/14

CPC分类号： H04L27/12 ,  H04L1/0009 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0072 ,  H04L27/14

摘要： A method of generating a packet for low energy critical infrastructure monitoring (LECIM) wireless communication is provided. The method includes steps of generating a first bit string by multiplexing a physical layer header (PHR) bit and a physical layer service data unit (PSDU) bit; convolution encoding the first bit string; interleaving the convolution-encoded first bit string; generating a second bit string by multiplexing the interleaved first bit string with a synchronization header (SHR) bit; and modulating the second bit string with a frequency shift keying (FSK) method and a position-based FSK method.

摘要翻译： 提供了一种生成用于低能量关键基础设施监控（LECIM）无线通信的数据包的方法。 该方法包括以下步骤：通过复用物理层报头（PHR）比特和物理层业务数据单元（PSDU）比特来生成第一比特串; 卷积编码第一个位串; 交织卷积编码的第一位串; 通过将交织的第一比特串与同步头（SHR）比特进行复用来产生第二比特串; 并用频移键控（FSK）方法和基于位置的FSK方法调制第二位串。

公开(公告)号：US08045448B2

公开(公告)日：2011-10-25

申请号：US12189931

申请日：2008-08-12

申请人： Kyu-Min Kang ,  Sang-In Cho ,  Sangsung Choi

发明人： Kyu-Min Kang ,  Sang-In Cho ,  Sangsung Choi

IPC分类号： H04J11/00

CPC分类号： H04L27/2647

摘要： Provided is an apparatus and method for detecting a packet of a zero-padded OFDM signal, which are capable of determining if a packet exists in a reception (RX) signal by comparing a cross-correlation value of an OFDM signal delayed by a predetermined sample time, e.g., a zero-padded sample time, with a power value of the RX signal, thereby increasing a packet detection probability and preventing a false alarm. The packet detecting apparatus includes: a cross-correlation calculator for calculating a cross-correlation value of a reception signal received from the outside and delaying the calculated cross-correlation value by a predetermined sample time; a power calculator for calculating a power value of the reception signal; and a packet detector for determining if a packet exists in the reception signal by comparing the delayed cross-correlation value with the calculated power value, and detecting the corresponding packet.

摘要翻译： 提供了一种检测零填充OFDM信号的分组的装置和方法，其能够通过比较延迟了预定样本的OFDM信号的互相关值来确定在接收（RX）信号中是否存在分组 时间，例如零填充采样时间，具有RX信号的功率值，从而增加分组检测概率并防止误报。 分组检测装置包括：互相关计算器，用于计算从外部接收的接收信号的互相关值，并将所计算的互相关值延迟预定采样时间; 功率计算器，用于计算接收信号的功率值; 以及分组检测器，用于通过将延迟的互相关值与所计算的功率值进行比较来确定接收信号中是否存在分组，并检测相应的分组。

公开(公告)号：US20100142596A1

公开(公告)日：2010-06-10

申请号：US12610604

申请日：2009-11-02

申请人： Kyu-Min KANG ,  Sang In CHO ,  Sung Woo CHOI ,  Sangsung CHOI

发明人： Kyu-Min KANG ,  Sang In CHO ,  Sung Woo CHOI ,  Sangsung CHOI

IPC分类号： H04B1/707

CPC分类号： H04B1/7183 ,  H04B1/7075

摘要： Provided is a synchronization error tracking device and method. The method and system estimates and corrects the synchronization error generated by time and frequency offsets during the data transmission interval and uses a module designed for initial synchronization or channel estimation without adding a new correlation operator. Further, a combining mark value and a synchronization position value acquired during the synchronization process are used.

摘要翻译： 提供了一种同步误差跟踪装置和方法。 该方法和系统估计并校正数据传输间隔期间由时间和频率偏移产生的同步误差，并使用设计用于初始同步或信道估计的模块，而不添加新的相关运算符。 此外，使用在同步处理期间获取的组合标记值和同步位置值。