公开(公告)号：US20070211654A1

公开(公告)日：2007-09-13

申请号：US11369014

申请日：2006-03-07

申请人： Jae-Hoon Kim ,  Yong-Sung Roh ,  Ari Arapostathis ,  Young-Sang Kim ,  Young-Gon Choi

发明人： Jae-Hoon Kim ,  Yong-Sung Roh ,  Ari Arapostathis ,  Young-Sang Kim ,  Young-Gon Choi

IPC分类号： H04M1/00

CPC分类号： H04W52/0225 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/22

摘要： A power-saving method of wireless communication device, which operates a sleep mode for minimizing power consumption except for an active mode for communication, initializes a sleep probability upon the device being turned on, operates the active mode for communication with starting an active mode timer, transits to the sleep mode when there is no packet to transmit or receive before the active mode timer expires; and determines an exit from the sleep mode on the basis of the sleep probability.

摘要翻译： 一种无线通信设备的省电方法，其操作休眠模式以最小化功率消耗，除了用于通信的活动模式之外，在设备接通时初始化睡眠概率，操作用于通信的活动模式以启动主动模式定时器 当在活动模式定时器到期之前没有发送或接收数据包时，转入睡眠模式; 并且基于睡眠概率确定从睡眠模式的退出。

公开(公告)号：US07647078B2

公开(公告)日：2010-01-12

申请号：US11369014

申请日：2006-03-07

申请人： Jae-Hoon Kim ,  Yong-Sung Roh ,  Ari Arapostathis ,  Young-Sang Kim ,  Young-Gon Choi

发明人： Jae-Hoon Kim ,  Yong-Sung Roh ,  Ari Arapostathis ,  Young-Sang Kim ,  Young-Gon Choi

IPC分类号： H04M1/00

CPC分类号： H04W52/0225 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/22

摘要： A power-saving method of wireless communication device, which operates a sleep mode for minimizing power consumption except for an active mode for communication, initializes a sleep probability upon the device being turned on, operates the active mode for communication with starting an active mode timer, transits to the sleep mode when there is no packet to transmit or receive before the active mode timer expires; and determines an exit from the sleep mode on the basis of the sleep probability.

摘要翻译： 一种无线通信设备的省电方法，其操作休眠模式以最小化功率消耗，除了用于通信的活动模式之外，在设备接通时初始化睡眠概率，操作用于通信的活动模式以启动主动模式定时器 当在活动模式定时器到期之前没有发送或接收数据包时，转入睡眠模式; 并且基于睡眠概率确定从睡眠模式的退出。

公开(公告)号：US20070099678A1

公开(公告)日：2007-05-03

申请号：US11260686

申请日：2005-10-28

申请人： Jae-Hoon Kim ,  Jung-Ho Kim ,  Ji-Hoon Lee ,  Young-Gon Choi ,  Young-Sang Kim ,  Ari Arapostathis

发明人： Jae-Hoon Kim ,  Jung-Ho Kim ,  Ji-Hoon Lee ,  Young-Gon Choi ,  Young-Sang Kim ,  Ari Arapostathis

IPC分类号： H04B1/38

CPC分类号： H04W52/028 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/22

摘要： A power saving method of the present invention is provide for a wireless sensor network including a plurality of sensor nodes each transiting between a power saving mode and a transmit/receive mode, determines whether or not there is no transmit or receive data, enters the power saving mode if there is no transmit or receive data, and controls power consumption on the basis of signal-to-noise ratios in the power saving mode. In the power saving method of the present invention, it is possible to minimize the power consumption regardless of nodes density and without an adverse effect on the connectivity of the network, since the sojourn times of the sleep and idle states are determined adaptive to the interference level from neighboring nodes.

摘要翻译： 本发明的省电方法是提供一种无线传感器网络，其包括多个传感器节点，每个传感器节点在功率节省模式和发送/接收模式之间转换，确定是否没有发送或接收数据，进入功率 如果没有发送或接收数据，并且在省电模式下基于信噪比来控制功耗。 在本发明的省电方法中，无论节点密度如何，并且不会对网络的连通性产生不利影响，因此能够使功耗最小化，因为睡眠和空闲状态的居住时间被自适应于干扰 级别从相邻节点。

公开(公告)号：US6046564A

公开(公告)日：2000-04-04

申请号：US219816

申请日：1998-12-23

申请人： Young-Sang Kim

发明人： Young-Sang Kim

IPC分类号： B25J9/10 ,  B25J9/00 ,  B25J9/16 ,  B25J9/18 ,  G05B13/02 ,  G05B19/416 ,  G05D3/12 ,  G05B19/41 ,  B25J9/04 ,  G05B19/25

CPC分类号： G05B19/416 ,  G05B2219/40225 ,  G05B2219/41039 ,  G05B2219/41148

摘要： Disclosed is a path planning apparatus and method for robots. The apparatus includes a planner which receives target positioning information, performs calculations using this information to obtain an initial speed profile, then outputs the initial speed profile; a low pass filter functioning as an interpolator which receives the initial speed profile from the planner, performs a predetermined operation on the same to obtain a filtered speed profile that is smoother than the initial speed profile, and outputs the filtered speed profile; a servo controller which receives output of the low pass filter and outputs acceleration and deceleration control signals according to the output of the low pass filter, and a servo motor which is controlled by the signals received from the servo controller. The method includes the steps of calculating an initial speed profile calculated after receiving input of signals corresponding to a predetermined target position, obtaining a filtered speed profile by interpolating the initial speed profile using a single low pass filter; and controlling acceleration and deceleration of a servo motor using the filtered speed profile.

摘要翻译： 公开了一种用于机器人的路径规划装置和方法。 该装置包括接收目标定位信息的计划器，使用该信息执行计算以获得初始速度曲线，然后输出初始速度曲线; 用作内插器的低通滤波器，其从计划器接收初始速度曲线，对其进行预定的操作以获得比初始速度曲线更平滑的滤波速度曲线，并输出滤波后的速度曲线; 伺服控制器，其接收低通滤波器的输出，并根据低通滤波器的输出输出加速和减速控制信号，以及由伺服控制器接收的信号控制的伺服电机。 该方法包括以下步骤：计算在接收到与预定目标位置相对应的信号的输入之后计算出的初始速度分布，通过使用单个低通滤波器内插所述初始速度分布来获得滤波速度曲线; 并使用过滤速度曲线来控制伺服电机的加速和减速。

公开(公告)号：US5971579A

公开(公告)日：1999-10-26

申请号：US827708

申请日：1997-04-08

申请人： Young-Sang Kim

发明人： Young-Sang Kim

IPC分类号： G06F15/18 ,  G05B11/42 ,  G05B13/02 ,  G06N3/00

CPC分类号： G05B13/0265

摘要： A unit and a method for determining gains of a PID (Proportion, Integral, Differential) controller using a genetic algorithm. A genetic algorithm tuning unit decodes an output value from an object system extracted by a feature extracting unit, and generates a first population including a random binary string. Then, the first population is normalized in a given ratio to measure a PID gain converting fitness with respect to the first population. Thereafter, the normalized first population is compared with the decoded value to determine whether it is a user's desired value. If the desired value is obtained, the genetic algorithm tuning unit generates PID gain control signals with respect to the resulting value, which are supplied to the PID controller to tune PID gains.

摘要翻译： 用于使用遗传算法确定PID（比例，积分，微分）控制器的增益的单元和方法。 遗传算法调谐单元从特征提取单元提取的对象系统中解码输出值，并生成包括随机二进制串的第一种群。 然后，以给定的比例对第一群体进行归一化，以测量相对于第一群体的PID增益转换适应度。 此后，将归一化的第一种群与解码值进行比较，以确定它是否是用户的期望值。 如果获得所需值，则遗传算法调谐单元产生相对于结果值的PID增益控制信号，该PID增益控制信号被提供给PID控制器以调节PID增益。

公开(公告)号：US09209517B2

公开(公告)日：2015-12-08

申请号：US13983568

申请日：2012-02-08

申请人： Sang-Hoon Choi ,  Young-Sang Kim ,  Bu-Seok Shim

发明人： Sang-Hoon Choi ,  Young-Sang Kim ,  Bu-Seok Shim

IPC分类号： H01Q1/24 ,  H01Q1/52 ,  H01Q9/04 ,  H01Q21/28

CPC分类号： H01Q1/523 ,  H01Q1/241 ,  H01Q1/521 ,  H01Q9/0421 ,  H01Q21/28

摘要： A MIMO/diversity antenna for improving isolation of a frequency band includes: a ground surface formed on a printed circuit board; planar inverted F antennas having the ground surface therebetween and disposed on the printed circuit board having no ground surface formed, each F antenna having an antenna pattern that includes a radiation unit, a power supply unit, and a ground unit; power supply pads and ground pads formed on the printed circuit board having no ground surface formed corresponding to the power supply unit and the ground unit of the antenna pattern in the planar inverted F antennas; and connection patterns connecting the ground surface with each ground pad to electrically connect the ground surface to each ground unit of the antenna pattern in the planar inverted F antennas. At least one of the connection patterns is formed with a strip line of a meandering shape.

摘要翻译： 用于改善频带隔离的MIMO /分集天线包括：形成在印刷电路板上的接地面; 每个F天线具有包括辐射单元，电源单元和接地单元的天线方向图，所述F天线具有接地表面，并且布置在没有形成地面的印刷电路板上; 形成在印刷电路板上的电源焊盘和接地焊盘，其没有对应于平面倒F形天线中的电源单元和天线图案的接地单元形成的接地表面; 以及将地面与每个接地焊盘连接的连接图案，以将平面倒置的F天线中的地面与天线方向图的每个接地单元电连接。 连接图案中的至少一个形成有蜿蜒形状的带状线。

公开(公告)号：US20130307744A1

公开(公告)日：2013-11-21

申请号：US13983568

申请日：2012-02-08

申请人： Sang-Hoon Choi ,  Young-Sang Kim ,  Bu-Seok Shim

发明人： Sang-Hoon Choi ,  Young-Sang Kim ,  Bu-Seok Shim

IPC分类号： H01Q1/52

CPC分类号： H01Q1/523 ,  H01Q1/241 ,  H01Q1/521 ,  H01Q9/0421 ,  H01Q21/28

摘要： A MIMO/diversity antenna for improving isolation of a frequency band includes: a ground surface formed on a printed circuit board; planar inverted F antennas having the ground surface therebetween and disposed on the printed circuit board having no ground surface formed, each F antenna having an antenna pattern that includes a radiation unit, a power supply unit, and a ground unit; power supply pads and ground pads formed on the printed circuit board having no ground surface formed corresponding to the power supply unit and the ground unit of the antenna pattern in the planar inverted F antennas; and connection patterns connecting the ground surface with each ground pad to electrically connect the ground surface to each ground unit of the antenna pattern in the planar inverted F antennas. At least one of the connection patterns is formed with a strip line of a meandering shape.

摘要翻译： 用于改善频带隔离的MIMO /分集天线包括：形成在印刷电路板上的接地面; 每个F天线具有包括辐射单元，电源单元和接地单元的天线方向图，所述F天线具有接地表面，并且布置在没有形成地面的印刷电路板上; 形成在印刷电路板上的电源焊盘和接地焊盘，其没有对应于平面倒F形天线中的电源单元和天线图案的接地单元形成的接地表面; 以及将地面与每个接地焊盘连接的连接图案，以将平面倒置的F天线中的地面与天线方向图的每个接地单元电连接。 连接图案中的至少一个形成有蜿蜒形状的带状线。

公开(公告)号：US07447526B2

公开(公告)日：2008-11-04

申请号：US11260686

申请日：2005-10-28

申请人： Jae-Hoon Kim ,  Jung-Ho Kim ,  Ji-Hoon Lee ,  Young-Gon Choi ,  Young-Sang Kim ,  Ari Arapostathis

发明人： Jae-Hoon Kim ,  Jung-Ho Kim ,  Ji-Hoon Lee ,  Young-Gon Choi ,  Young-Sang Kim ,  Ari Arapostathis

IPC分类号： H04B1/38

CPC分类号： H04W52/028 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/22

摘要： A power saving method of the present invention is provide for a wireless sensor network including a plurality of sensor nodes each transiting between a power saving mode and a transmit/receive mode, determines whether or not there is no transmit or receive data, enters the power saving mode if there is no transmit or receive data, and controls power consumption on the basis of signal-to-noise ratios in the power saving mode. In the power saving method of the present invention, it is possible to minimize the power consumption regardless of nodes density and without an adverse effect on the connectivity of the network, since the sojourn times of the sleep and idle states are determined adaptive to the interference level from neighboring nodes.

摘要翻译： 本发明的省电方法是提供一种无线传感器网络，其包括多个传感器节点，每个传感器节点在功率节省模式和发送/接收模式之间转换，确定是否没有发送或接收数据，进入功率 如果没有发送或接收数据，并且在省电模式下基于信噪比来控制功耗。 在本发明的省电方法中，无论节点密度如何，并且不会对网络的连通性产生不利影响，因此能够使功耗最小化，因为睡眠和空闲状态的居住时间被自适应于干扰 级别从相邻节点。

公开(公告)号：US06172993B2

公开(公告)日：2001-01-09

申请号：US08982268

申请日：1997-12-01

申请人： Young-Sang Kim ,  Francois Langinieux

发明人： Young-Sang Kim ,  Francois Langinieux

IPC分类号： H04J306

CPC分类号： H04L27/2656 ,  H04L27/2675

摘要： A frame synchronization method and apparatus for use in a digital communication system utilizing OFDM method are disclosed. The frame synchronization apparatus comprises a phase calculator for calculating phase values of TPS pilots within a symbol according to in-phase and quadrature-phase channel signals received from a transmitting side; a D-BPSK demodulator for performing D-BPSK demodulation for the phase values of TPS pilots supplied from the phase calculator and outputting the TPS pilots within the demodulated symbol; a control signal generator for comparing the demodulated TPS pilots with each other and outputting a control signal according to the compared result; and frame synchronization unit for confirming a sync word position according to the control signal supplied from the control signal generator and outputting a frame sync signal. Hence, frame synchronization can be achieved by using the synchronization word inverted at each frame in one TPS block without the need to increase the size of hardware.

摘要翻译： 公开了一种在使用OFDM方法的数字通信系统中使用的帧同步方法和装置。 帧同步装置包括相位计算器，用于根据从发送侧接收的同相和正交相位信道信号计算符号内的TPS导频的相位值; D-BPSK解调器，用于对从相位计算器提供的TPS导频的相位值进行D-BPSK解调，并输出解调符号内的TPS导频; 控制信号发生器，用于将解调的TPS导频相互比较并根据比较结果输出控制信号; 以及帧同步单元，用于根据从控制信号发生器提供的控制信号确认同步字位置并输出帧同步信号。 因此，可以通过使用在一个TPS块中的每个帧处反转的同步字而不需要增加硬件的大小来实现帧同步。

公开(公告)号：US06098161A

公开(公告)日：2000-08-01

申请号：US105247

申请日：1998-06-26

申请人： Young-Sang Kim

发明人： Young-Sang Kim

IPC分类号： H04L27/00 ,  H04B3/10 ,  H04B7/005 ,  H04J11/00 ,  H04L5/06 ,  H04L25/03 ,  H04L27/01 ,  H03H7/30 ,  H03H7/40

CPC分类号： H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522

摘要： A method and an apparatus for generating address of a coefficient memory in an OFDM adaptive channel equalizer are disclosed. The address generating apparatus comprises a signal generator for generating a symbol identification signal according to modulo-(Y+1) operation on symbol numbers within one OFDM transmission frame; a first pulse generator for generating a first pulse signal synchronized with a sample clock according to the location of the pilot signal within each symbol respective to the symbol identification signal; a write address generator for generating a write address of the coefficient memory by the first pulse signal and the symbol identification signal; a second pulse generator for generating a second pulse signal by frequency-dividing the sample clock by Y; and a read address generator for generating a read address of the coefficient memory by the second pulse signal. Therefore, the address and the enable signal for the coefficient memory can be simply generated by using the sequential circuit such as the counter, thereby accessing efficiently the updated coefficient value according to the pilot insertion principle.

摘要翻译： 公开了一种用于在OFDM自适应信道均衡器中产生系数存储器的地址的方法和装置。 地址发生装置包括信号发生器，用于根据在一个OFDM传输帧内的码元号进行模（Y + 1）操作产生码元识别信号; 第一脉冲发生器，用于根据与符号识别信号相对应的每个符号内的导频信号的位置，产生与采样时钟同步的第一脉冲信号; 写地址发生器，用于通过第一脉冲信号和符号识别信号产生系数存储器的写入地址; 第二脉冲发生器，用于通过将采样时钟分频Y来产生第二脉冲信号; 以及读地址发生器，用于通过第二脉冲信号产生系数存储器的读地址。 因此，可以通过使用诸如计数器的顺序电路简单地生成用于系数存储器的地址和使能信号，从而根据导频插入原理有效地访问更新的系数值。