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11. 发明授权

US08625654B2 Pulse generator of UWB system 失效
标题翻译： UWB系统的脉冲发生器
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。

12. 发明授权

US07400899B2 Method for controlling power level based on packet error rate in wireless personal area network system 失效
标题翻译：基于无线个域网系统中数据包错误率控制功率电平的方法
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。

13. 发明授权

US07391790B2 CardBus PC card type wireless transmitting/receiving device 有权
标题翻译： CardBus PC卡型无线发射/接收设备
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。

14. 发明申请

US20060093021A1 Code acquisition device and method using two-step search process in DS-CDMA UWB modem 失效
标题翻译：在DS-CDMA UWB调制解调器中使用两步搜索过程的码采集设备和方法
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。

15. 再颁专利

USRE44334E1 Apparatus for transmitting WPAN MAC frames and method thereof 有权
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.

16. 发明授权

US08045448B2 Apparatus and method for detecting packet of zero-padded OFDM signal 失效
标题翻译：用于检测零填充OFDM信号的分组的装置和方法
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。

17. 发明申请

US20060126671A1 Cycle time synchronization apparatus and method for wireless 1394 system 审中-公开
标题翻译：无线1394系统的周期时间同步装置和方法
公开(公告)号：US20060126671A1
公开(公告)日：2006-06-15
申请号：US11260591
申请日：2005-10-27
申请人： Seong Park , Sangsung Choi , Kwang Park
发明人： Seong Park , Sangsung Choi , Kwang Park
IPC分类号： H04J3/16 , H04J3/06
CPC分类号： H04J3/0676 , H04J3/0638
摘要： A cycle time synchronization apparatus for a wireless 1394 system having one wireless 1394 intermediary and at least one wireless 1394 slave, the apparatus including: a cycle time generator for generating a cycle time by a predetermined clock signal; a cycle time register synchronized to a beacon inputted, and storing the cycle time from the cycle time generator; a cycle time temporary storage unit for storing the cycle time of the cycle time register and cycle times generated from other devices; a cycle time management unit for managing calculation and control operations of the cycle times of the cycle time register and the cycle time temporary storage unit; and a cycle time controller for controlling the cycle time by the cycle time management unit.
摘要翻译：一种具有一个无线1394中间和至少一个无线1394从机的无线1394系统的周期时间同步装置，该装置包括：周期时间发生器，用于通过预定时钟信号产生周期时间; 与输入的信标同步的周期时间寄存器，存储来自周期时间发生器的周期时间; 周期时间临时存储单元，用于存储从其他设备产生的周期时间寄存器和周期时间的周期时间; 周期时间管理单元，用于管理周期时间寄存器和周期时间临时存储单元的周期时间的计算和控制操作; 以及循环时间控制器，用于通过循环时间管理单元控制循环时间。

18. 发明申请

US20060093052A1 2N-point and N-point FFT/IFFT dual mode processor 失效
标题翻译： 2N点和N点FFT / IFFT双模式处理器
公开(公告)号：US20060093052A1
公开(公告)日：2006-05-04
申请号：US11264886
申请日：2005-11-02
申请人： Sang Cho , Sangsung Choi , Kwang Park
发明人： Sang Cho , Sangsung Choi , Kwang Park
IPC分类号： H04K1/10
CPC分类号： H04L27/265 , H04L27/263
摘要： A 2N-point and N-point FFT/IFFT dual mode processor is provided. The processor includes a butterfly operator, the first and second MUXs, and the first and second N-point FFT processors. The butterfly operator receives 2N data and butterfly-operates on the received 2N data when receiving a control signal ‘0’ from the controller. The first and second MUXs respectively receive results from the butterfly operator to output the results in an increment of N when receiving a control signal ‘0’ from the controller, and respectively outputs different N data when receiving a control signal ‘1’ from the controller. The first and second N-point FFT processors N-point FFT operate on the results from the first and second MUXs and respectively output the same under control of the controller. Since the N-point FFT operation can be simultaneously performed two times at a receiver, the performance of the receiver can be enhanced.
摘要翻译：提供2N点和N点FFT / IFFT双模式处理器。处理器包括蝶形运算符，第一和第二MUX以及第一和第二N点FFT处理器。当从控制器接收到控制信号“0”时，蝶形运算符接收2N个数据并对接收的2N数据进行蝶形运算。当从控制器接收到控制信号“0”时，第一和第二MUX分别接收蝶形运算器的结果以输出N的增量，并且当从控制器接收到控制信号“1”时分别输出不同的N数据。第一和第二N点FFT处理器N点FFT对来自第一和第二MUX的结果进行操作，并在控制器的控制下分别输出。由于在接收机可以同时进行N点FFT运算两次，所以可以提高接收机的性能。

19. 发明申请

US20050097409A1 Method for controlling power level based on packet error rate in wireless personal area network system 失效
标题翻译：基于无线个域网系统中数据包错误率控制功率电平的方法
公开(公告)号：US20050097409A1
公开(公告)日：2005-05-05
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： H04L12/28 , G06F11/00 , H04B7/005 , H04J3/00
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。

20. 再颁专利

USRE44413E1 FIR filter of DS-CDMA UWB modem transmitter and control method thereof 有权
标题翻译： DS-CDMA UWB调制解调器发射机的FIR滤波器及其控制方法
公开(公告)号：USRE44413E1
公开(公告)日：2013-08-06
申请号：US12904718
申请日：2010-10-14
申请人： Kyu Min Kang , Bub Joo Kang , Sangsung Choi , Kwang Roh Park
发明人： Kyu Min Kang , Bub Joo Kang , Sangsung Choi , Kwang Roh Park
IPC分类号： H04B1/10
CPC分类号： H04B1/7176 , H04B1/7174 , H04B2201/70707
摘要： An FIR filter of a DS-CDMA UWB modem transmitter and a control method thereof are disclosed. The FIR filter includes an LUT control device for outputting a resultant value of “0” to all adders if data values corresponding to upper three chips H2, M2 and L2 and lower three chips H, M and L are “000000”, and discriminating which group between a first group and a second group the upper/lower data values belong to if the upper/lower data values are not“000000”. The LUT control device provides upper or lower LUT values to the adders using the upper or lower LUT values as they are, or converts the upper or lower LUT values into 2's complements and provides the converted values to the adders according to the discriminated first or second group.
摘要翻译：公开了DS-CDMA UWB调制解调发射机的FIR滤波器及其控制方法。 FIR滤波器包括LUT控制装置，用于如果对应于上三个码片H2，M2和L2以及较低三个码片H，M和L的数据值为“000000”，则将所得到的值“0”输出到所有加法器，并且鉴别哪个如果上/下数据值不是“000000”，则在第一组和第二组之间组合上/下数据值。 LUT控制装置使用上下LUT值向加法器提供上或下LUT值，或者将上或下LUT值转换为2的补码，并根据所识别的第一或第二值向加法器提供转换的值组。

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