公开(公告)号：US06890008B1

公开(公告)日：2005-05-10

申请号：US10364395

申请日：2003-02-12

申请人： Wei-Ping Chuang ,  Wu-Yung Chen

发明人： Wei-Ping Chuang ,  Wu-Yung Chen

IPC分类号： E05C3/14 ,  G06F1/16 ,  E05C19/10

CPC分类号： G06F1/1616 ,  E05C3/14 ,  G06F1/1679 ,  Y10S292/37 ,  Y10T292/0849 ,  Y10T292/0926 ,  Y10T292/0928 ,  Y10T292/093 ,  Y10T292/1052

摘要： An interlocking device for locking a case includes first and second interlocking members. The first interlocking member is formed with a notch. The second interlocking member is formed with a button that is operable to rotate the second interlocking member from a first position, in which the first and second interlocking members engage each other and in which the button is received in the notch, to a second position, in which the first and second interlocking members disengage from each other and in which the button moves out of the notch.

摘要翻译： 用于锁定壳体的互锁装置包括第一和第二互锁构件。 第一互锁构件形成有凹口。 第二互锁构件形成有按钮，该按钮可操作以从第一位置旋转第二联锁构件，第一联锁构件和第二联锁构件将第一和第二联锁构件彼此接合并且其中按钮被容纳在凹口中，第二位置， 其中第一和第二互锁构件彼此脱离并且其中按钮移出凹口。

公开(公告)号：US20100056082A1

公开(公告)日：2010-03-04

申请号：US12198126

申请日：2008-08-26

申请人： Mao-Ching Chiu ,  Wei-Ping Chuang

发明人： Mao-Ching Chiu ,  Wei-Ping Chuang

IPC分类号： H04B1/04 ,  H03F1/26

CPC分类号： H04L27/368 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2201/3233 ,  H04B17/0085 ,  H04B17/21 ,  H04B2001/0425

摘要： A communication system comprises a predistorter for distorting an input signal according to at least one parameter to generate a distorted signal, an amplifier for amplifying the distorted signal according to an input-output characteristic to generate an output signal, and a frequency-domain adaptive calibration module for adaptively adjusting the parameter of the predistorter according to a frequency characteristic of the output signal. Because the calibration is performed in the frequency domain, there is no need to precisely estimate the group delay formed by the feedback path. The system complexity is therefore reduced without loss of performance.

摘要翻译： 通信系统包括用于根据至少一个参数使输入信号失真以产生失真信号的预失真器，用于根据输入 - 输出特性放大失真信号以产生输出信号的放大器，以及频域自适应校准 模块，用于根据输出信号的频率特性自适应地调整预失真器的参数。 因为在频域中执行校准，所以不需要精确地估计由反馈路径形成的组延迟。 因此，系统复杂度降低而不会损失性能。

公开(公告)号：US07486655B2

公开(公告)日：2009-02-03

申请号：US11327217

申请日：2006-01-05

申请人： Pang-An Ting ,  Chao-Kai Wen ,  Wei-Ping Chuang ,  Jiunn-Tsair Chen

发明人： Pang-An Ting ,  Chao-Kai Wen ,  Wei-Ping Chuang ,  Jiunn-Tsair Chen

IPC分类号： H04J1/00

CPC分类号： H04L25/0206 ,  H04B7/0417 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/06 ,  H04L25/0248 ,  H04L25/03343 ,  H04L27/2601 ,  H04L2025/03414 ,  H04L2025/03426

摘要： The present invention provides an antenna-array-based multiple-input multiple-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) system and a pre-coding and feedback method used in the same. The present invention uses QR decompositions of the MIMO channel matrixes to parameterize the channel state information (CSI) of every OFDM frequency band. In addition, the present invention feeds back the information related to θ and φ in the Givens rotation matrixes of the partial frequency bands and then uses an interpolation method to generate θ and φ in the Givens rotation matrixes of all the frequency bands, which further is able to represent the CSI of all the frequency bands. In this way, the present invention has advantages of low complexity and low feedback rate requirement.

摘要翻译： 本发明提供了一种基于天线阵列的多输入多输出正交频分复用（MIMO-OFDM）系统及其中使用的预编码和反馈方法。 本发明使用MIMO信道矩阵的QR分解来参数化每个OFDM频带的信道状态信息（CSI）。 此外，本发明反馈了与部分频带的Givens旋转矩阵中的θ和phi相关的信息，然后使用内插方法来产生所有频带的Givens旋转矩阵中的θ和φi，这进一步是 能够表示所有频段的CSI。 这样，本发明具有复杂度低，反馈率低的优点。

公开(公告)号：US08000661B2

公开(公告)日：2011-08-16

申请号：US12198126

申请日：2008-08-26

申请人： Mao-Ching Chiu ,  Wei-Ping Chuang

发明人： Mao-Ching Chiu ,  Wei-Ping Chuang

IPC分类号： H04B1/04

CPC分类号： H04L27/368 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2201/3233 ,  H04B17/0085 ,  H04B17/21 ,  H04B2001/0425

摘要： A communication system comprises a predistorter for distorting an input signal according to at least one parameter to generate a distorted signal, an amplifier for amplifying the distorted signal according to an input-output characteristic to generate an output signal, and a frequency-domain adaptive calibration module for adaptively adjusting the parameter of the predistorter according to a frequency characteristic of the output signal. Because the calibration is performed in the frequency domain, there is no need to precisely estimate the group delay formed by the feedback path. The system complexity is therefore reduced without loss of performance.

摘要翻译： 通信系统包括用于根据至少一个参数使输入信号失真以产生失真信号的预失真器，用于根据输入 - 输出特性放大失真信号以产生输出信号的放大器，以及频域自适应校准 模块，用于根据输出信号的频率特性自适应地调整预失真器的参数。 因为在频域中执行校准，所以不需要精确地估计由反馈路径形成的组延迟。 因此，系统复杂度降低而不会损失性能。

公开(公告)号：US20070115799A1

公开(公告)日：2007-05-24

申请号：US11327217

申请日：2006-01-05

申请人： Pang-An Ting ,  Chao-Kai Wen ,  Wei-Ping Chuang ,  Jiunn-Tsair Chen

发明人： Pang-An Ting ,  Chao-Kai Wen ,  Wei-Ping Chuang ,  Jiunn-Tsair Chen

IPC分类号： H04J11/00

CPC分类号： H04L25/0206 ,  H04B7/0417 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/06 ,  H04L25/0248 ,  H04L25/03343 ,  H04L27/2601 ,  H04L2025/03414 ,  H04L2025/03426

摘要： The present invention provides an antenna-array-based multiple-input multiple-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) system and a pre-coding and feedback method used in the same. The present invention uses QR decompositions of the MIMO channel matrixes to parameterize the channel state information (CSI) of every OFDM frequency band. In addition, the present invention feeds back the information related to θ and φ in the Givens rotation matrixes of the partial frequency bands and then uses an interpolation method to generate θ and φ in the Givens rotation matrixes of all the frequency bands, which further is able to represent the CSI of all the frequency bands. In this way, the present invention has advantages of low complexity and low feedback rate requirement.

摘要翻译： 本发明提供了一种基于天线阵列的多输入多输出正交频分复用（MIMO-OFDM）系统及其中使用的预编码和反馈方法。 本发明使用MIMO信道矩阵的QR分解来参数化每个OFDM频带的信道状态信息（CSI）。 此外，本发明反馈了与部分频带的Givens旋转矩阵中的θ和phi相关的信息，然后使用内插方法来产生所有频带的Givens旋转矩阵中的θ和φi，这进一步是 能够表示所有频段的CSI。 这样，本发明具有复杂度低，反馈率低的优点。