公开(公告)号：US20080225984A1

公开(公告)日：2008-09-18

申请号：US12048022

申请日：2008-03-13

申请人： Walid Khairy Mohamed Ahmed ,  Qing Li ,  Ajit Kumar Reddy ,  Eoin Carey

发明人： Walid Khairy Mohamed Ahmed ,  Qing Li ,  Ajit Kumar Reddy ,  Eoin Carey

IPC分类号： H03C3/00 ,  H04L27/12 ,  H03K7/06

CPC分类号： H03K7/10 ,  H03C5/00 ,  H04L25/06 ,  H04L27/34 ,  H04L27/361 ,  H04L27/3863 ,  H04L27/389

摘要： A digital polar transmitter includes a baseband processor configured to receive an input signal and to convert the input signal into a baseband amplitude component and a baseband phase component. The transmitter also includes a phase modulator in communication with the baseband processor. The phase modulator is configured to modulate an RF carrier signal based on the phase component and to generate a phase-modulated RF carrier signal. A power amplifier is provided in communication with the baseband processor and the phase modulator. The power amplifier is configured to amplify the phase-modulated RF carrier signal based on the baseband amplitude component and to generate an amplified RF signal. The transmitter also includes a digital feedback loop in communication with the power amplifier and the baseband processor. The digital feedback loop is configured to detect the amplified RF signal and to provide a digital amplitude feedback signal and a detected phase feedback signal to the baseband processor.

摘要翻译： 数字极化发射机包括：基带处理器，被配置为接收输入信号并将输入信号转换成基带振幅分量和基带相位分量。 发射机还包括与基带处理器通信的相位调制器。 相位调制器被配置为基于相位分量来调制RF载波信号并且产生相位调制的RF载波信号。 提供与基带处理器和相位调制器通信的功率放大器。 功率放大器被配置为基于基带幅度分量来放大相位调制的RF载波信号并产生放大的RF信号。 发射机还包括与功率放大器和基带处理器通信的数字反馈回路。 数字反馈回路被配置为检测放大的RF信号，并向基带处理器提供数字幅度反馈信号和检测的相位反馈信号。

公开(公告)号：US20080225981A1

公开(公告)日：2008-09-18

申请号：US12048013

申请日：2008-03-13

申请人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

发明人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

IPC分类号： H04L25/49

CPC分类号： H04L27/367

摘要： A system is provided for processing a communication signal including a baseband amplitude component and a baseband phase component. The system includes an amplitude predictor configured for closed-loop pre-distortion of a baseband amplitude component, an amplitude lookup table configured for open-loop pre-distortion of the baseband amplitude component, and an amplitude interpolator configured to build up the amplitude lookup table during a closed-loop calibration period. The system also includes a phase predictor configured for closed-loop pre-distortion of a baseband phase component, a phase lookup table configured for open-loop pre-distortion of the baseband phase component, and a phase interpolator configured to build up the phase lookup table during a closed-loop calibration period.

摘要翻译： 提供一种用于处理包括基带振幅分量和基带相位分量的通信信号的系统。 该系统包括被配置用于基带幅度分量的闭环预失真的幅度预测器，配置用于基带振幅分量的开环预失真的幅度查找表，以及被配置为建立幅度查找表的振幅内插器 在闭环校准期间。 该系统还包括配置用于基带相位分量的闭环预失真的相位预测器，配置用于基带相位分量的开环预失真的相位查找表，以及配置成建立相位查找的相位内插器 在闭环校准期间。

公开(公告)号：US20110085619A1

公开(公告)日：2011-04-14

申请号：US12969843

申请日：2010-12-16

申请人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

发明人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

IPC分类号： H04L25/03

CPC分类号： H04L27/367

摘要： A system is provided for processing a communication signal including a baseband amplitude component and a baseband phase component. The system includes an amplitude predictor configured for closed-loop pre-distortion of a baseband amplitude component, an amplitude lookup table configured for open-loop pre-distortion of the baseband amplitude component, and an amplitude interpolator configured to build up the amplitude lookup table during a closed-loop calibration period. The system also includes a phase predictor configured for closed-loop pre-distortion of a baseband phase component, a phase lookup table configured for open-loop pre-distortion of the baseband phase component, and a phase interpolator configured to build up the phase lookup table during a closed-loop calibration period.

摘要翻译： 提供一种用于处理包括基带振幅分量和基带相位分量的通信信号的系统。 该系统包括被配置用于基带幅度分量的闭环预失真的幅度预测器，配置用于基带振幅分量的开环预失真的幅度查找表，以及被配置为建立幅度查找表的振幅内插器 在闭环校准期间。 该系统还包括配置用于基带相位分量的闭环预失真的相位预测器，配置用于基带相位分量的开环预失真的相位查找表，以及配置成建立相位查找的相位内插器 在闭环校准期间。

公开(公告)号：US08208583B2

公开(公告)日：2012-06-26

申请号：US12969843

申请日：2010-12-16

申请人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

发明人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

IPC分类号： H04L25/03

CPC分类号： H04L27/367

摘要： A system is provided for processing a communication signal including a baseband amplitude component and a baseband phase component. The system includes an amplitude predictor configured for closed-loop pre-distortion of a baseband amplitude component, an amplitude lookup table configured for open-loop pre-distortion of the baseband amplitude component, and an amplitude interpolator configured to build up the amplitude lookup table during a closed-loop calibration period. The system also includes a phase predictor configured for closed-loop pre-distortion of a baseband phase component, a phase lookup table configured for open-loop pre-distortion of the baseband phase component, and a phase interpolator configured to build up the phase lookup table during a closed-loop calibration period.

摘要翻译： 提供一种用于处理包括基带振幅分量和基带相位分量的通信信号的系统。 该系统包括被配置用于基带幅度分量的闭环预失真的幅度预测器，配置用于基带振幅分量的开环预失真的幅度查找表，以及被配置为建立幅度查找表的振幅内插器 在闭环校准期间。 该系统还包括配置用于基带相位分量的闭环预失真的相位预测器，配置用于基带相位分量的开环预失真的相位查找表，以及配置成建立相位查找的相位内插器 在闭环校准期间。

公开(公告)号：US08009765B2

公开(公告)日：2011-08-30

申请号：US12048022

申请日：2008-03-13

申请人： Walid Khairy Mohamed Ahmed ,  Qing Li ,  Ajit Kumar Reddy ,  Eoin Carey

发明人： Walid Khairy Mohamed Ahmed ,  Qing Li ,  Ajit Kumar Reddy ,  Eoin Carey

IPC分类号： H04K1/02

CPC分类号： H03K7/10 ,  H03C5/00 ,  H04L25/06 ,  H04L27/34 ,  H04L27/361 ,  H04L27/3863 ,  H04L27/389

摘要： A digital polar transmitter includes a baseband processor configured to receive an input signal and to convert the input signal into a baseband amplitude component and a baseband phase component. The transmitter also includes a phase modulator in communication with the baseband processor. The phase modulator is configured to modulate an RF carrier signal based on the phase component and to generate a phase-modulated RF carrier signal. A power amplifier is provided in communication with the baseband processor and the phase modulator. The power amplifier is configured to amplify the phase-modulated RF carrier signal based on the baseband amplitude component and to generate an amplified RF signal. The transmitter also includes a digital feedback loop in communication with the power amplifier and the baseband processor. The digital feedback loop is configured to detect the amplified RF signal and to provide a digital amplitude feedback signal and a detected phase feedback signal to the baseband processor.

摘要翻译： 数字极化发射机包括：基带处理器，被配置为接收输入信号并将输入信号转换成基带振幅分量和基带相位分量。 发射机还包括与基带处理器通信的相位调制器。 相位调制器被配置为基于相位分量来调制RF载波信号并且产生相位调制的RF载波信号。 提供与基带处理器和相位调制器通信的功率放大器。 功率放大器被配置为基于基带幅度分量来放大相位调制的RF载波信号并产生放大的RF信号。 发射机还包括与功率放大器和基带处理器通信的数字反馈回路。 数字反馈回路被配置为检测放大的RF信号，并向基带处理器提供数字幅度反馈信号和检测的相位反馈信号。

公开(公告)号：US07869543B2

公开(公告)日：2011-01-11

申请号：US12048013

申请日：2008-03-13

申请人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

发明人： Ajit Kumar Reddy ,  Qing Li ,  Walid Khairy Mohamed Ahmed

IPC分类号： H04K1/02 ,  H04B1/04 ,  H04L25/49

CPC分类号： H04L27/367

摘要： A system is provided for processing a communication signal including a baseband amplitude component and a baseband phase component. The system includes an amplitude predictor configured for closed-loop pre-distortion of a baseband amplitude component, an amplitude lookup table configured for open-loop pre-distortion of the baseband amplitude component, and an amplitude interpolator configured to build up the amplitude lookup table during a closed-loop calibration period. The system also includes a phase predictor configured for closed-loop pre-distortion of a baseband phase component, a phase lookup table configured for open-loop pre-distortion of the baseband phase component, and a phase interpolator configured to build up the phase lookup table during a closed-loop calibration period.

摘要翻译： 提供一种用于处理包括基带振幅分量和基带相位分量的通信信号的系统。 该系统包括被配置用于基带幅度分量的闭环预失真的幅度预测器，配置用于基带振幅分量的开环预失真的幅度查找表，以及被配置为建立幅度查找表的振幅内插器 在闭环校准期间。 该系统还包括配置用于基带相位分量的闭环预失真的相位预测器，配置用于基带相位分量的开环预失真的相位查找表，以及配置成建立相位查找的相位内插器 在闭环校准期间。

公开(公告)号：US07889810B2

公开(公告)日：2011-02-15

申请号：US11639999

申请日：2006-12-15

申请人： Walid Khairy Mohamed Ahmed ,  Qing Li

发明人： Walid Khairy Mohamed Ahmed ,  Qing Li

IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H04L27/00

CPC分类号： H03F1/3247

摘要： A method and apparatus for a nonlinear feedback control system is disclosed, such as for electrical and electronic systems, for pre-distorting a nonlinear device. A nonlinear feedback control system includes a nonlinear device having a first input and a first output. A detection stage is in communication with the first output of the nonlinear device. A derivation stage is in communication with the detection stage, and the derivation stage is in communication with the first input of the nonlinear device.

摘要翻译： 公开了用于非线性反馈控制系统的方法和装置，例如用于电气和电子系统，用于对非线性装置进行预失真。 非线性反馈控制系统包括具有第一输入和第一输出的非线性装置。 检测级与非线性器件的第一输出端通信。 导出级与检测级通信，导出级与非线性器件的第一输入端通信。

公开(公告)号：US20080143437A1

公开(公告)日：2008-06-19

申请号：US11639999

申请日：2006-12-15

申请人： Walid Khairy Mohamed Ahmed ,  Qing Li

发明人： Walid Khairy Mohamed Ahmed ,  Qing Li

IPC分类号： H03G3/20

CPC分类号： H03F1/3247

摘要： A method and apparatus for a nonlinear feedback control system is disclosed, such as for electrical and electronic systems, for pre-distorting a nonlinear device. A nonlinear feedback control system includes a nonlinear device having a first input and a first output. A detection stage is in communication with the first output of the nonlinear device. A derivation stage is in communication with the detection stage, and the derivation stage is in communication with the first input of the nonlinear device.

摘要翻译： 公开了用于非线性反馈控制系统的方法和装置，例如用于电气和电子系统，用于对非线性装置进行预失真。 非线性反馈控制系统包括具有第一输入和第一输出的非线性装置。 检测级与非线性器件的第一输出端通信。 导出级与检测级通信，导出级与非线性器件的第一输入端通信。

公开(公告)号：USD1026985S1

公开(公告)日：2024-05-14

申请号：US29923050

申请日：2023-12-27

申请人： Qing Li

设计人： Qing Li

摘要： FIG. 1 is a front, right and top perspective view of a digital display electric soldering iron, showing my design.
FIG. 2 is a rear, left and bottom perspective view thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a left side elevation view thereof.
FIG. 6 is a right side elevation view thereof.
FIG. 7 is a top plan view thereof.
FIG. 8 is a bottom plan view thereof.
FIG. 9 is an enlarged view of detail 9 in FIG. 1; and,
FIG. 10 is an exploded view thereof.
The uniform broken lines depict portions of the digital display electric soldering iron that form no part of the claimed design.
The dash dot broken lines define the enlargement regions and form no part of the claimed design.

公开(公告)号：USD935500S1

公开(公告)日：2021-11-09

申请号：US29760114

申请日：2020-11-30

申请人： Qing Li

设计人： Qing Li