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1. 发明申请

US20100026385A1 METHOD FOR CALIBRATING A POWER AMPLIFIER AND DEVICE USING THE SAME 有权
标题翻译：用于校准功率放大器和使用其的器件的方法
公开(公告)号：US20100026385A1
公开(公告)日：2010-02-04
申请号：US12465623
申请日：2009-05-13
申请人： Chun-Hsien Wen , Yun-Shen Chang , Wen-Sheng Hou , Chien-Cheng Lin , Jiunn-Tsair Chen
发明人： Chun-Hsien Wen , Yun-Shen Chang , Wen-Sheng Hou , Chien-Cheng Lin , Jiunn-Tsair Chen
IPC分类号： G01R29/00
CPC分类号： H03F1/3247 , H03F1/3241 , H03F2200/468
摘要： A calibration device for a power amplifier includes a calculation unit, a first storage unit and a multiplier. The calculation unit is utilized for generating a calibration factor according to a value of a characteristic parameter of the power amplifier. The first storage unit coupled to the calculation unit, for storing the calibration factor. The multiplier is coupled to the first storage unit and a baseband unit, for multiplying a baseband signal outputted from the baseband unit by the calibration factor for generating an input signal to the power amplifier.
摘要翻译：用于功率放大器的校准装置包括计算单元，第一存储单元和乘法器。计算单元用于根据功率放大器的特性参数的值产生校准因子。第一存储单元耦合到计算单元，用于存储校准因子。乘法器耦合到第一存储单元和基带单元，用于将从基带单元输出的基带信号乘以校准因子，以产生输入信号到功率放大器。

2. 发明授权

US07816984B2 Lookup table generation method and related device for a predistorter 有权
标题翻译：用于预失真器的查找表生成方法和相关设备
公开(公告)号：US07816984B2
公开(公告)日：2010-10-19
申请号：US12432767
申请日：2009-04-30
申请人： Wen-Sheng Hou , Yun-Shen Chang , Chun-Hsien Wen , Jiunn-Tsair Chen
发明人： Wen-Sheng Hou , Yun-Shen Chang , Chun-Hsien Wen , Jiunn-Tsair Chen
IPC分类号： H03F1/26
CPC分类号： H03F3/24 , H03F1/3247 , H03F3/195 , H03F2200/451 , H03F2201/3233
摘要： A lookup table generation method for a predistorter comprises sending a first single tone signal with a maximum expected amplitude to a channel simulation device including the power amplifier, estimating a closed loop gain and a closed loop phase of the power amplifier according to the first single tone signal and a first simulation output signal generated outputted by the channel simulation device, sending a plurality of single tone signals to the channel simulation device, each single tone signal having an amplitude different from all others of the plurality of single tone signals and lower than the maximum expected amplitude, generating a plurality of predistortion parameters according to the closed loop gain, the closed loop phase, the plurality of single tone signals and a plurality of simulation output signals outputted by the channel simulation device, and storing the plurality of predistortion parameters in a lookup table of the predistorter.
摘要翻译：用于预失真器的查找表生成方法包括：向包括功率放大器的信道模拟设备发送具有最大预期幅度的第一单音调信号，根据第一单音调估计功率放大器的闭环增益和闭环相位信号和由信道模拟装置输出的第一模拟输出信号，向信道模拟装置发送多个单音信号，每个单音调信号的振幅不同于多个单音信号中的所有其他频率，并低于最大预期幅度，根据闭环增益，闭环相位，多个单音信号和由信道模拟装置输出的多个模拟输出信号产生多个预失真参数，并将多个预失真参数存储在预失真器的查找表。

3. 发明授权

US07863975B2 Method for calibrating a power amplifier and device using the same 有权
标题翻译：用于校准功率放大器的方法及使用其的装置
公开(公告)号：US07863975B2
公开(公告)日：2011-01-04
申请号：US12465623
申请日：2009-05-13
申请人： Chun-Hsien Wen , Yun-Shen Chang , Wen-Sheng Hou , Chien-Cheng Lin , Jiunn-Tsair Chen
发明人： Chun-Hsien Wen , Yun-Shen Chang , Wen-Sheng Hou , Chien-Cheng Lin , Jiunn-Tsair Chen
IPC分类号： G01R19/00
CPC分类号： H03F1/3247 , H03F1/3241 , H03F2200/468
摘要： A calibration device for a power amplifier includes a calculation unit, a first storage unit and a multiplier. The calculation unit is utilized for generating a calibration factor according to a value of a characteristic parameter of the power amplifier. The first storage unit coupled to the calculation unit, for storing the calibration factor. The multiplier is coupled to the first storage unit and a baseband unit, for multiplying a baseband signal outputted from the baseband unit by the calibration factor for generating an input signal to the power amplifier.
摘要翻译：用于功率放大器的校准装置包括计算单元，第一存储单元和乘法器。计算单元用于根据功率放大器的特性参数的值产生校准因子。第一存储单元耦合到计算单元，用于存储校准因子。乘法器耦合到第一存储单元和基带单元，用于将从基带单元输出的基带信号乘以校准因子，以产生输入信号到功率放大器。

4. 发明申请

US20100097137A1 LOOKUP TABLE GENERATION METHOD AND RELATED DEVICE FOR A PREDISTORTER 有权
标题翻译：查询表生成方法和预测器的相关设备
公开(公告)号：US20100097137A1
公开(公告)日：2010-04-22
申请号：US12432767
申请日：2009-04-30
申请人： Wen-Sheng Hou , Yun-Shen Chang , Chun-Hsien Wen , Jiunn-Tsair Chen
发明人： Wen-Sheng Hou , Yun-Shen Chang , Chun-Hsien Wen , Jiunn-Tsair Chen
IPC分类号： H03F1/26
CPC分类号： H03F3/24 , H03F1/3247 , H03F3/195 , H03F2200/451 , H03F2201/3233
摘要： A lookup table generation method for a predistorter comprises sending a first single tone signal with a maximum expected amplitude to a channel simulation device including the power amplifier, estimating a closed loop gain and a closed loop phase of the power amplifier according to the first single tone signal and a first simulation output signal generated outputted by the channel simulation device, sending a plurality of single tone signals to the channel simulation device, each single tone signal having an amplitude different from all others of the plurality of single tone signals and lower than the maximum expected amplitude, generating a plurality of predistortion parameters according to the closed loop gain, the closed loop phase, the plurality of single tone signals and a plurality of simulation output signals outputted by the channel simulation device, and storing the plurality of predistortion parameters in a lookup table of the predistorter.
摘要翻译：用于预失真器的查找表生成方法包括：向包括功率放大器的信道模拟设备发送具有最大预期幅度的第一单音调信号，根据第一单音调估计功率放大器的闭环增益和闭环相位信号和由信道模拟装置输出的第一模拟输出信号，向信道模拟装置发送多个单音信号，每个单音调信号的振幅不同于多个单音信号中的所有其他频率，并低于最大预期幅度，根据闭环增益，闭环相位，多个单音信号和由信道模拟装置输出的多个模拟输出信号产生多个预失真参数，并将多个预失真参数存储在预失真器的查找表。

5. 发明申请

US20080084940A1 OFDM receiver 审中-公开
标题翻译： OFDM接收机
公开(公告)号：US20080084940A1
公开(公告)日：2008-04-10
申请号：US11542189
申请日：2006-10-04
申请人： Wen-Sheng Hou
发明人： Wen-Sheng Hou
IPC分类号： H04K1/10
CPC分类号： H04L25/0328 , H04L25/022 , H04L25/0228 , H04L27/2647
摘要： An OFDM receiver includes a CCI detector and a frequency-domain notch filter. The CCI detector detects whether or not the co-channel interference exists in a sub-carrier and lowers the weight of a distorted sub-carrier to eliminate the influence of the co-channel interference. The frequency-domain notch filter receives a frequency-domain signal and generates a notched frequency-domain signal.
摘要翻译： OFDM接收机包括CCI检测器和频域陷波滤波器。 CCI检测器检测在副载波中是否存在同信道干扰，并降低失真副载波的权重以消除同信道干扰的影响。频域陷波滤波器接收频域信号并产生陷波频域信号。

6. 发明申请

US20100259244A1 Method and Apparatus for Estimating Cable Length 有权
标题翻译：用于估算电缆长度的方法和装置
公开(公告)号：US20100259244A1
公开(公告)日：2010-10-14
申请号：US12501485
申请日：2009-07-12
申请人： Guan-Henry Lin , Tsung-Hsuan Wu , Wen-Sheng Hou
发明人： Guan-Henry Lin , Tsung-Hsuan Wu , Wen-Sheng Hou
IPC分类号： G01B7/02
CPC分类号： H04L43/50
摘要： A method for estimating cable length includes steps of generating a detection signal to a cable, wherein the detection signal includes a first pulse and a second pulse with opposite voltages in sequence; receiving a refection signal of the detection signal from the cable; and determining length of the cable according to a superposed waveform of the detection signal and the refection signal.
摘要翻译：一种用于估计电缆长度的方法包括产生对电缆的检测信号的步骤，其中检测信号包括依次具有相反电压的第一脉冲和第二脉冲; 从电缆接收检测信号的反射信号; 以及根据检测信号和反射信号的叠加波形来确定电缆的长度。

7. 发明申请

US20070098091A1 Method and system for residual frequency offset compensation of multi-carrier communication system 审中-公开
标题翻译：多载波通信系统残余频偏补偿方法与系统
公开(公告)号：US20070098091A1
公开(公告)日：2007-05-03
申请号：US11262121
申请日：2005-10-28
申请人： Wen-Sheng Hou
发明人： Wen-Sheng Hou
IPC分类号： H04K1/10
CPC分类号： H04L27/2657 , H04L27/2679 , H04L2027/0053 , H04L2027/0067 , H04L2027/0071
摘要： A residual frequency offset (RFO) compensation method and a compensation system of a multi-carrier communication system is disclosed. The compensatory method of present invention includes two phase-computation steps. The first phase-computation step processes a phase variation of an OFDM data symbol each time to obtain a RFO estimation for compensating a demodulation carrier. The second-phase computation processes a plurality of OFDM data symbols each time to obtain a RFO estimation for compensating the demodulation carrier. The compensation system of the present invention includes: a Discrete Fourier Transformation (DFT) unit for performing DFT on receiving OFDM packages; a phase variation detector connecting to the DFT unit for detecting phase variations of a plurality of OFDM data symbols; and a residual frequency offset compensator connecting to the phase variation detector, which generates the desired RFO estimations in accordance with the phase variations of the plurality of OFDM data symbols and the compensation method of the present invention.
摘要翻译：公开了多载波通信系统的残余频率偏移（RFO）补偿方法和补偿系统。本发明的补偿方法包括两个相位计算步骤。第一相位计算步骤每次处理OFDM数据符号的相位变化以获得用于补偿解调载波的RFO估计。第二阶段计算每次处理多个OFDM数据符号以获得用于补偿解调载波的RFO估计。本发明的补偿系统包括：离散傅里叶变换（DFT）单元，用于在接收OFDM包时执行DFT; 相位变化检测器，连接到DFT单元，用于检测多个OFDM数据符号的相位变化; 以及连接到相位变化检测器的残余频率偏移补偿器，其根据多个OFDM数据符号的相位变化和本发明的补偿方法产生期望的RFO估计。

8. 发明申请

US20130028358A1 Narrowband Interference Detector 有权
标题翻译：窄带干扰检测器
公开(公告)号：US20130028358A1
公开(公告)日：2013-01-31
申请号：US13194987
申请日：2011-07-31
申请人： Wen-Sheng Hou
发明人： Wen-Sheng Hou
IPC分类号： H04B1/10
CPC分类号： H04B1/10
摘要： The present invention discloses a narrow band interference detector for a receiver of a communication system. The narrow band interference detector includes a numerically-controlled oscillator (NCO), for generating an oscillating signal according to a time-variable frequency; a mixer, for mixing an input signal with the oscillating signal, to generate a mixed signal; a phase lock loop (PLL), for locking the mixed signal during a detection period according to the time-variable frequency; a first switch, for controlling a connection between the NCO and the PLL according to a desirable narrow band interference signal type of the at least one narrow band interference signal; and a narrow band determination unit, for determining at least one narrow band interference signal according to a low frequency component of the mixed signal, the time-variable frequency and the desirable narrow band interference signal type of the at least one narrow band interference signal.
摘要翻译：本发明公开了一种用于通信系统的接收机的窄带干扰检测器。窄带干扰检测器包括数控振荡器（NCO），用于根据时变频率产生振荡信号; 用于混合输入信号与振荡信号的混频器，以产生混合信号; 锁相环（PLL），用于根据时变频率在检测周期期间锁定混合信号; 第一开关，用于根据所述至少一个窄带干扰信号的期望的窄带干扰信号类型来控制NCO和PLL之间的连接; 以及窄带确定单元，用于根据所述混合信号的低频分量，所述至少一个窄带干扰信号的所述时变频率和期望的窄带干扰信号类型来确定至少一个窄带干扰信号。

9. 发明授权

US08279949B2 Method and apparatus for estimating channel length in wired communication system 失效
标题翻译：用于估计有线通信系统中信道长度的方法和装置
公开(公告)号：US08279949B2
公开(公告)日：2012-10-02
申请号：US12821151
申请日：2010-06-23
申请人： Wen-Sheng Hou , Li-Hua Weng , Guan-Henry Lin
发明人： Wen-Sheng Hou , Li-Hua Weng , Guan-Henry Lin
IPC分类号： H04B3/00 , H04L25/00
CPC分类号： H04L25/0216
摘要： A method for estimating a length of a channel in a wired communication system includes receiving a plurality of signals transmitted continuously via the channel, determining relation between a signal and at least one signal in the of the plurality of signals, to generate a decision result, and determining the length of the channel according to the decision result.
摘要翻译：一种用于估计有线通信系统中的信道长度的方法包括接收通过信道连续发送的多个信号，确定信号与多个信号中的至少一个信号之间的关系，以产生判定结果，以及根据所述判定结果确定所述信道的长度。

10. 发明申请

US20070098122A1 Diversity receiver 有权
标题翻译：分集接收机
公开(公告)号：US20070098122A1
公开(公告)日：2007-05-03
申请号：US11477929
申请日：2006-06-30
申请人： Ya-Ti Tseng , Wen-Sheng Hou
发明人： Ya-Ti Tseng , Wen-Sheng Hou
IPC分类号： H04L1/02 , H04K1/10
CPC分类号： H04L1/0054 , H04L25/0204 , H04L25/0226 , H04L27/2647 , H04L2025/0342 , H04L2025/03522
摘要： A diversity receiver includes N number of Fourier transform circuits, N number of channel estimators, N number of match filters, N number of soft demappers, a combination/selection unit, and a channel decoder. The diversity receiver merges the square of the absolute value of estimate channel frequency response and transmission data into a demodulation signal and then outputs the demodulation signal by means of the match filter.
摘要翻译：分集接收机包括N个傅里叶变换电路，N个信道估计器，N个匹配滤波器，N个软解映射器，组合/选择单元和信道解码器。分集接收器将估计信道频率响应和传输数据的绝对值的平方合并成解调信号，然后通过匹配滤波器输出解调信号。

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