公开(公告)号：US06385187B1

公开(公告)日：2002-05-07

申请号：US09135854

申请日：1998-08-18

申请人： Jae-Min Ahn ,  Soon-Young Yoon ,  Hee-Won Kang ,  Young-Ky Kim ,  Jong-Seon No ,  Hong-Yeop Song ,  Ha-Bong Chung ,  Je-Woo Kim

发明人： Jae-Min Ahn ,  Soon-Young Yoon ,  Hee-Won Kang ,  Young-Ky Kim ,  Jong-Seon No ,  Hong-Yeop Song ,  Ha-Bong Chung ,  Je-Woo Kim

IPC分类号： H04J1302

CPC分类号： H04B1/707 ,  H04J13/0022 ,  H04J13/102

摘要： A device and method for generating a pseudo-orthogonal code for use in orthogonally spreading channel data in a CDMA mobile communications system. M orthogonal codes are selected from N orthogonal codes, for forming a pseudo-orthogonal codes, and the elements of the selected M orthogonal codes are sequentially interlaced to generate the pseudo-orthogonal code as a sequence of M×N elements.

摘要翻译： 一种用于在CDMA移动通信系统中产生用于正交扩频通道数据的伪正交码的装置和方法。 从N个正交码中选择M个正交码，用于形成伪正交码，并且所选择的M个正交码的元素被顺序交织以产生作为M×N个元素的序列的伪正交码。

公开(公告)号：US06396868B1

公开(公告)日：2002-05-28

申请号：US09135990

申请日：1998-08-18

申请人： Soon-Young Yoon ,  Jae-Min Ahn ,  Hee-Won Kang ,  Young-Ky Kim ,  Jong-Seon No ,  Hong-Yeop Song ,  Ha-Bong Chung ,  Je-Woo Kim

发明人： Soon-Young Yoon ,  Jae-Min Ahn ,  Hee-Won Kang ,  Young-Ky Kim ,  Jong-Seon No ,  Hong-Yeop Song ,  Ha-Bong Chung ,  Je-Woo Kim

IPC分类号： H04B1707

CPC分类号： H04B1/707 ,  H04B2201/70706 ,  H04J13/004

摘要： There are provided spread spectrum signal generating devices and methods in a transmitter of a mobile communications system using a plurality of logical channels. In the spread spectrum signal generating devices, a multiplexer time multiplexes a pilot channel signal and a control channel signal which are output at substantially constant power levels. A first orthogonal encoder orthogonally spreads the output of the multiplexer with an orthogonal code. A second orthogonal encoder orthogonally spreads voice channel data of a variable bit rate with an orthogonal code. A third orthogonal encoder orthogonally spreads packet channel data of a variable bit rate with an orthogonal code. An IQ signal mapper adds the outputs of the first and third orthogonal encoders, outputs the added signal as a first channel signal, and outputs the output of the second orthogonal encoder as a second channel signal. A PN spreader spreads the first and second channel signals with PN codes and outputs a final spectrum spread signal, which exhibits a substantially minimized peak-to-average power ratio.

摘要翻译： 在使用多个逻辑信道的移动通信系统的发射机中提供扩频信号产生装置和方法。 在扩展频谱信号发生装置中，多路复用器以基本上恒定的功率电平输出导频信道信号和控制信道信号。 第一正交编码器使用正交码对多路复用器的输出进行正交扩展。 第二正交编码器用正交码对可变比特率的语音信道数据进行正交扩频。 第三正交编码器使用正交码对可变比特率的分组信道数据进行正交扩展。 IQ信号映射器将第一和第三正交编码器的输出相加，输出相加的信号作为第一信道信号，并将第二正交编码器的输出作为第二信道信号输出。 PN扩展器用PN码扩展第一和第二信道信号，并输出最终的频谱扩展信号，其表现出基本上最小化的峰均功率比。

公开(公告)号：US06459723B1

公开(公告)日：2002-10-01

申请号：US09310389

申请日：1999-05-12

申请人： Je-Woo Kim ,  Young-Jun Hwang ,  Soon-Young Yoon ,  Jae-Heung Yeom

发明人： Je-Woo Kim ,  Young-Jun Hwang ,  Soon-Young Yoon ,  Jae-Heung Yeom

IPC分类号： H04B1707

CPC分类号： H04W52/367 ,  H04B1/707 ,  H04B2201/70706 ,  H04W52/52

摘要： A device and method are provided for reducing the peak-to-average power ratio of a mobile station's transmit power in a mobile communication system by spreading and modulating the transmission data by a complex spreading sequence. The complex spreading sequence is generated to have a plurality of chips and a phase difference of 90° between every two successive complex chips in response to each chip of a PN (Pseudo Noise) sequence. The device and method flexibly control the mobile transmit power by limiting its peak-to-average power ratio to a specific range and thus confining the mobile transmit power to a linear characteristic portion in a characteristic curve of a power amplifier. The phase of the complex spreading sequence is prevented from shifting by 180° (i.e., &pgr;) to maintain the mobile transmit power in the linear portion of the power amplifier characteristic curve.

摘要翻译： 提供一种装置和方法，用于通过以复扩展顺序扩展和调制发送数据来减少移动台在移动通信系统中的发射功率的峰均功率比。 响应于PN（伪噪声）序列的每个芯片，产生复扩展序列以具有多个芯片，并且在每两个连续复合码片之间具有90°的相位差。 该装置和方法通过将其峰值平均功率比限制在特定范围并且因此将移动发射功率限制在功率放大器的特性曲线中的线性特征部分来灵活地控制移动发射功率。 复数扩展序列的相位被防止偏移180°（即，pi），以将移动发射功率保持在功率放大器特性曲线的线性部分。

公开(公告)号：US06490267B1

公开(公告)日：2002-12-03

申请号：US09407537

申请日：1999-09-29

申请人： Je-Woo Kim ,  Jung-Hyo Woo ,  Chang-Soo Park ,  Jae-Min Ahn

发明人： Je-Woo Kim ,  Jung-Hyo Woo ,  Chang-Soo Park ,  Jae-Min Ahn

IPC分类号： H04B7216

CPC分类号： H04J13/0022 ,  H04J13/10 ,  H04J13/12

摘要： A spreading code generating device for a Code Division Multiple Access (CDMA) communication system. The device comprises a PN (Pseudorandom Noise) code sequence generator for generating PNi and PNq sequences; an orthogonal code generator for generating first and second orthogonal codes which perform Differential Phase Shift Keying (DPSK) state transitions at intervals of at least two chips; and a spreading code generator for generating spreading codes Ci and Cq by mixing the PNi and PNq code sequences with the first and second orthogonal codes such that a present phase of the spreading codes Ci and Cq alternately makes Quadrature Phase Shift Keying (QPSK) and DPSK state transitions with respect to a previous phase of the spreading codes Ci and Cq.

摘要翻译： 一种用于码分多址（CDMA）通信系统的扩展码产生装置。 该装置包括用于产生PNi和PNq序列的PN（伪随机噪声）码序列发生器; 用于产生以至少两个码片的间隔执行差分相移键控（DPSK）状态转换的第一和第二正交码的正交码发生器; 以及扩展码发生器，用于通过将PNi和PNq码序列与第一和第二正交码混合来产生扩展码Ci和Cq，使得扩展码Ci和Cq的当前相位交替地使正交相移键控（QPSK）和DPSK 相对于扩展码Ci和Cq的先前相位的状态转换。

公开(公告)号：US20060039470A1

公开(公告)日：2006-02-23

申请号：US10976781

申请日：2004-11-01

申请人： Yong-Hwan Kim ,  Je-Woo Kim ,  Hyeok-Koo Jung ,  Joonki Paik

发明人： Yong-Hwan Kim ,  Je-Woo Kim ,  Hyeok-Koo Jung ,  Joonki Paik

IPC分类号： H04N11/02 ,  H04N7/12 ,  H04N11/04 ,  H04B1/66

CPC分类号： H04N19/567 ,  H04N5/145 ,  H04N19/57

摘要： Disclosed herein is an adaptive motion estimation and mode decision apparatus and method for an H.264 video codec. The apparatus includes a background image detection unit, an inter mode inspection unit, an intra mode inspection unit and a mode inspection skip unit. The background image detection unit inspects whether a fixed background or slowly and regularly moving block exists, and skips the step of dividing a first corresponding macroblock into smaller sized blocks and performing block mode inspection. The inter mode inspection unit inspects whether an irregularly or fast moving macroblock exists, and determines whether to divide a corresponding macroblock into smaller sized blocks and to perform block mode inspection on the smaller sized blocks. The intra mode inspection unit performs AZCB inspection on the macroblocks, and determines whether to divide a corresponding macroblock into smaller sized blocks block and to perform mode inspection on the smaller sized blocks. The mode inspection skip unit skips the block mode inspection for the smaller sized blocks.

摘要翻译： 这里公开了一种用于H.264视频编解码器的自适应运动估计和模式决定装置和方法。 该装置包括背景图像检测单元，帧间模式检查单元，帧内模式检查单元和模式检查跳过单元。 背景图像检测单元检查是否存在固定的背景或缓慢且有规律的移动块，并且跳过将第一对应宏块划分成较小尺寸块并执行块模式检查的步骤。 帧间模式检查单元检查是否存在不规则或快速移动的宏块，并且确定是否将相应的宏块划分成较小尺寸的块并且对较小尺寸的块执行块模式检查。 帧内模式检查单元对宏块执行AZCB检查，并且确定是否将对应的宏块分割成较小尺寸的块块，并对较小尺寸的块执行模式检查。 模式检查跳过单元跳过较小尺寸块的块模式检查。

公开(公告)号：US06593882B1

公开(公告)日：2003-07-15

申请号：US10106608

申请日：2002-03-26

申请人： Je-Woo Kim ,  Jong-Hyeon Park ,  Bok-Tae Shim ,  Sang-Hoon Roh ,  Tae-Ryun Chang

发明人： Je-Woo Kim ,  Jong-Hyeon Park ,  Bok-Tae Shim ,  Sang-Hoon Roh ,  Tae-Ryun Chang

IPC分类号： H01Q326

CPC分类号： H04B7/086 ,  H04B7/0851 ,  H04B7/0854

摘要： There are provided adaptive beamforming algorithms for an adaptive array smart antenna. According to one embodiment of the present invention, the adaptive array smart antenna constructs an input signal matrix with a predetermined number of input signals, computes a transmission signal matrix that minimizes a cost function using a first steering matrix set to an initial value and the input signal matrix, computes a second steering matrix that minimizes the cost function using the transmission signal matrix and the input signal matrix, maps the second steering matrix on a unit circle, constructs a third steering matrix with the mapped values, normalizes the third steering matrix and determining whether the third steering matrix converges, and demodulates data using the transmission signal matrix if the third steering matrix converges.

摘要翻译： 为自适应阵列智能天线提供了自适应波束成形算法。 根据本发明的一个实施例，自适应阵列智能天线构建具有预定数量的输入信号的输入信号矩阵，计算使用设置为初始值的第一导引矩阵和输入的最小化成本函数的传输信号矩阵 信号矩阵，计算使用传输信号矩阵和输入信号矩阵使成本函数最小化的第二导引矩阵，将第二导引矩阵映射在单位圆上，构建具有映射值的第三导引矩阵，归一化第三导引矩阵， 确定第三导引矩阵是否收敛，并且如果第三导引矩阵收敛则使用传输信号矩阵来解调数据。

公开(公告)号：US06522687B2

公开(公告)日：2003-02-18

申请号：US09775600

申请日：2001-02-05

申请人： Jong-Hyeon Park ,  Je-Woo Kim

发明人： Jong-Hyeon Park ,  Je-Woo Kim

IPC分类号： H04B1500

CPC分类号： H04L25/069 ,  H04B1/707 ,  H04B2201/70701 ,  H04L27/206 ,  H04L27/2273

摘要： A data transmitter and receiver in a DS-CDMA communication system designed to prevent a serious amplitude shift in a transmission signal, facilitate recovery of data and clock signals and relieve the constraint of using a high linearity, high performance amplifier. The data transmitter includes a spread signal generating device, in which I-arm and Q-arm information signals of the first channel are spread by I-arm and Q-arm PN codes, respectively, and I-arm and Q-arm information signals of a predetermined number of following channels are spread by an inverted Q-arm PN code and the I-arm PN code, respectively. The data receiver includes a despread signal generating device, in which an I-arm despread signal is generated by multiplying I-arm and Q-arm digital baseband spread signals by I-arm and Q-arm PN codes, respectively, and adding the multiplication results, while a Q-arm despread signal is generated by multiplying Q-arm and I-arm digital baseband spread signal by an inverted I-arm PN code and the Q-arm PN code, respectively, and adding the multiplication results.

摘要翻译： DS-CDMA通信系统中的数据发射机和接收机，旨在防止传输信号的严重幅度偏移，便于恢复数据和时钟信号，并减轻使用高线性，高性能放大器的约束。 数据发送器包括扩展信号发生装置，其中第一通道的I臂和Q臂信息信号分别由I臂和Q臂PN代码扩展，I臂和Q臂信息信号 的预定数量的后续通道分别由反向Q臂PN码和I型PN码扩展。 数据接收机包括解扩信号发生装置，其中分别通过I臂和Q臂数字基带扩展信号乘以I臂和Q-arm PN码产生I臂解扩信号，并且将乘法相加 结果，通过将Q臂和I臂数字基带扩展信号分别乘以反相I臂PN码和Q-臂PN码分别产生Q臂解扩信号，并相加乘法结果。

公开(公告)号：US06396823B1

公开(公告)日：2002-05-28

申请号：US09222669

申请日：1998-12-29

申请人： Jong-Hyeon Park ,  Je-Woo Kim

发明人： Jong-Hyeon Park ,  Je-Woo Kim

IPC分类号： H04B7216

CPC分类号： H04B1/7143 ,  H04W88/08

摘要： A small and lightweight base station transceiver utilizes a plurality of low-powered time division duplexing switches instead of a single high-powered time division duplexing switch. The base station transceiver includes a forward signal path, a reverse signal path, and a plurality of time division duplexing switches being switchable to the forward signal path or the reverse signal path according to a time division duplexing timing control signal generated from a time division duplexing timing controller. The plurality of time division duplexing switches corresponds to N time division duplexing switches where the symbol N represents a number. Output signals of the time division duplexing switches are filtered in a plurality of N bandpass filters, coupled in a junction coupler, and then radiated in the air through first and second antennas. The junction coupler couples the outputs of odd-numbered bandpass filters to transfer the coupled signals to the first antenna, and couples the outputs of even-numbered bandpass filters to transfer the coupled signal to the second antenna, so as to reduce mutual interference among the channels.

摘要翻译： 小而轻量级的基站收发器利用多个低功率时分双工交换机，而不是单个高功率时分双工开关。 基站收发机包括根据从时分复用产生的时分双工定时控制信号可转换到前向信号路径或反向信号路径的正向信号路径，反向信号路径和多个时分双工器开关 定时控制器 多个时分复用交换机对应于N个时分双工开关，其中符号N表示数字。 时分双工开关的输出信号在多个N个带通滤波器中进行滤波，耦合在耦合耦合器中，然后通过第一和第二天线在空气中辐射。 连接耦合器耦合奇数带通滤波器的输出，将耦合的信号传送到第一天线，并耦合偶数带通滤波器的输出，以将耦合的信号传送到第二天线，以减少相互干扰 频道

公开(公告)号：US5375162A

公开(公告)日：1994-12-20

申请号：US805644

申请日：1991-12-21

申请人： Je-Woo Kim ,  In-Sik Cho ,  Hajime Gikuchi

发明人： Je-Woo Kim ,  In-Sik Cho ,  Hajime Gikuchi

IPC分类号： H04M3/42 ,  H04M11/02 ,  H04Q7/38 ,  H04M11/00

CPC分类号： H04M11/022 ,  H04M11/02

摘要： A method of making the connection of a call in a private exchange to connect a call directly and promptly with a respective subscriber regardless of whether the called subscriber extension is absent from or present at the vicinity of an extension line (telephone), and for reducing the operating cost and increasing the efficiency of an extension line by coping with a loss of an existing call and a time consuming connection of a call, and utilizing a pager system. This disclosed method for connects a private exchange with a private pager system and connect a call according to a certain response after sending a radio paging to a respective pager corresponding to a specific number of extension the called subscriber.

摘要翻译： 一种在专用交换机中进行呼叫连接的方法，无论被叫用户分机是否在延长线路（电话机）附近不存在或出现在延长线路（电话机）附近，都可以直接和迅速地将呼叫连接到相应用户，并且为了减少 通过应对现有呼叫的丢失和呼叫连接的耗时以及利用寻呼机系统来提高运营成本并提高分机线路的效率。 这种公开的用于将专用交换机与专用寻呼机系统相连接的方法，并且在将无线电寻呼发送到对应于被叫用户的特定数量的分机的相应寻呼机之后，根据特定响应连接呼叫。

公开(公告)号：US08135225B2

公开(公告)日：2012-03-13

申请号：US11767242

申请日：2007-06-22

申请人： Yong-Hwan Kim ,  Ji-Ho Park ,  Byeong-Ho Choi ,  Je-Woo Kim ,  Joonki Paik

发明人： Yong-Hwan Kim ,  Ji-Ho Park ,  Byeong-Ho Choi ,  Je-Woo Kim ,  Joonki Paik

IPC分类号： G06K9/36

CPC分类号： H04N1/648 ,  H04N19/103 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

摘要： A method for coding an RGB color space signal is disclosed. In accordance with the method, a base plane is encoded using an independent mode, and an enhanced plane is encoded by referring to the base plane without converting the RGB color space signal into YCbCr color space signal to reduce a redundancy between RGB planes and improve a compression ratio of an image.

摘要翻译： 公开了一种用于编码RGB彩色空间信号的方法。 根据该方法，使用独立模式编码基本平面，并且通过参考基本平面对增强平面进行编码，而不将RGB颜色空间信号转换为YCbCr色彩空间信号，以减少RGB平面之间的冗余并改善 图像的压缩比。