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    Systems, Methods, and Apparatuses for Linear Envelope Elimination and Restoration Transmitters
    41.
    发明申请
    Systems, Methods, and Apparatuses for Linear Envelope Elimination and Restoration Transmitters 有权
    线性包络消除和恢复发射机的系统，方法和装置

    公开(公告)号：US20090174473A1

    公开(公告)日：2009-07-09

    申请号：US12406183

    申请日：2009-03-18

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H03F3/38

    CPC分类号： H03F3/24 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/78 ,  H03F2200/99 ,  H03F2201/3233 ,  H04L27/361 ,  H04L27/368

    摘要： Systems, methods, and apparatuses are provided for linear envelope elimination and restoration transmitters that are based on the polar modulation operating in conjunction with the orthogonal recursive predistortion technique. The polar modulation technique enhances the battery life by dynamically adjusting the bias level. Further, the analog orthogonal recursive predistortion efficiently corrects amplitude and phase errors in radio frequency (RF) power amplifiers (PA) and enhances the PA output capability. Additionally, even-order distortion components are used to predistort the input signal in a multiplicative manner so that the effective correction bandwidth is greatly enhanced. Also, the predistortion scheme, which uses instantaneously feed-backed envelope distortion signals, allows for correction of any distortion that may occur within the correction loop bandwidth, including envelope memory effects.

    摘要翻译： 提供了基于与正交递归预失真技术相结合的极坐标调制的线性包络消除和恢复发射机的系统，方法和装置。 极性调制技术通过动态调整偏置电平来提高电池寿命。 此外，模拟正交递归预失真有效地校正射频（RF）功率放大器（PA）中的幅度和相位误差，并增强了PA输出能力。 另外，偶数阶失真分量被用来以乘法方式对输入信号进行预失真，从而大大增强了有效的校正带宽。 此外，使用瞬时反馈包络失真信号的预失真方案允许校正可能发生在校正环路带宽内的任何失真，包括包络记忆效应。

    Systems, methods, and apparatuses for multi-path orthogonal recursive predistortion
    42.
    发明授权
    Systems, methods, and apparatuses for multi-path orthogonal recursive predistortion 有权
    用于多路径正交递归预失真的系统，方法和装置

    公开(公告)号：US07873331B2

    公开(公告)日：2011-01-18

    申请号：US11754122

    申请日：2007-05-25

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H04B1/04 ,  H03F1/26

    CPC分类号： H03F1/0222 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0233 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F1/3294 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/78 ,  H03F2200/99 ,  H04L27/368

    摘要： System and methods are provided for multi-path orthogonal recursive predistortion. The systems and methods may include generating a first orthogonal signal and a second orthogonal signal, where the first and second signals are orthogonal components of an input signal and processing, at a first predistortion module, the first orthogonal signal and a first error correction signal to generate a first predistorted signal. The system and methods may also include processing, at a second predistortion module, the second orthogonal signal and a second error correction signal to generate a second predistorted signal, and providing the generated first and second predistorted signals to a nonlinear device, where the nonlinear device generates an output based upon the first and second predistorted signals, where the first error correction signal is determined based upon an analysis of the output and the first predistorted signal, and where the second error correction signal is determined based upon an analysis of the output and the second predistorted signal.

    摘要翻译： 为多径正交递归预失真提供了系统和方法。 系统和方法可以包括产生第一正交信号和第二正交信号，其中第一和第二信号是输入信号的正交分量，并且在第一预失真模块处处理第一正交信号和第一纠错信号， 生成第一个预失真信号。 系统和方法还可以包括在第二预失真模块处处理第二正交信号和第二纠错信号以产生第二预失真信号，以及将生成的第一和第二预失真信号提供给非线性装置，其中非线性装置 基于第一和第二预失真信号产生输出，其中基于输出和第一预失真信号的分析确定第一纠错信号，并且其中基于输出的分析确定第二纠错信号，并且 第二个预失真信号。

    Systems, Methods, and Apparatuses for Linear Envelope Elimination and Restoration Transmitters
    43.
    发明申请
    Systems, Methods, and Apparatuses for Linear Envelope Elimination and Restoration Transmitters 有权
    线性包络消除和恢复发射机的系统，方法和装置

    公开(公告)号：US20070290748A1

    公开(公告)日：2007-12-20

    申请号：US11754119

    申请日：2007-05-25

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H03F1/26

    CPC分类号： H03F3/24 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/78 ,  H03F2200/99 ,  H03F2201/3233 ,  H04L27/361 ,  H04L27/368

    摘要： Systems, methods, and apparatuses are provided for linear envelope elimination and restoration transmitters that are based on the polar modulation operating in conjunction with the orthogonal recursive predistortion technique. The polar modulation technique enhances the battery life by dynamically adjusting the bias level. Further, the analog orthogonal recursive predistortion efficiently corrects amplitude and phase errors in radio frequency (RF) power amplifiers (PA) and enhances the PA output capability. Additionally, even-order distortion components are used to predistort the input signal in a multiplicative manner so that the effective correction bandwidth is greatly enhanced. Also, the predistortion scheme, which uses instantaneously feed-backed envelope distortion signals, allows for correction of any distortion that may occur within the correction loop bandwidth, including envelope memory effects.

    摘要翻译： 提供了基于与正交递归预失真技术相结合的极坐标调制的线性包络消除和恢复发射机的系统，方法和装置。 极性调制技术通过动态调整偏置电平来提高电池寿命。 此外，模拟正交递归预失真有效地校正射频（RF）功率放大器（PA）中的幅度和相位误差，并增强了PA输出能力。 另外，偶数阶失真分量被用来以乘法方式对输入信号进行预失真，从而大大增强了有效的校正带宽。 此外，使用瞬时反馈包络失真信号的预失真方案允许校正可能发生在校正环路带宽内的任何失真，包括包络记忆效应。

    Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters
    44.
    发明授权
    Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters 有权
    用于线性包络消除和恢复发射机的系统，方法和装置

    公开(公告)号：US07888997B2

    公开(公告)日：2011-02-15

    申请号：US12406183

    申请日：2009-03-18

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H03F3/38

    CPC分类号： H03F3/24 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/78 ,  H03F2200/99 ,  H03F2201/3233 ,  H04L27/361 ,  H04L27/368

    摘要： Systems, methods, and apparatuses are provided for linear envelope elimination and restoration transmitters that are based on the polar modulation operating in conjunction with the orthogonal recursive predistortion technique. The polar modulation technique enhances the battery life by dynamically adjusting the bias level. Further, the analog orthogonal recursive predistortion efficiently corrects amplitude and phase errors in radio frequency (RF) power amplifiers (PA) and enhances the PA output capability. Additionally, even-order distortion components are used to predistort the input signal in a multiplicative manner so that the effective correction bandwidth is greatly enhanced. Also, the predistortion scheme, which uses instantaneously feed-backed envelope distortion signals, allows for correction of any distortion that may occur within the correction loop bandwidth, including envelope memory effects.

    摘要翻译： 提供了基于与正交递归预失真技术相结合的极坐标调制的线性包络消除和恢复发射机的系统，方法和装置。 极性调制技术通过动态调整偏置电平来提高电池寿命。 此外，模拟正交递归预失真有效地校正射频（RF）功率放大器（PA）中的幅度和相位误差，并增强了PA输出能力。 另外，偶数阶失真分量被用来以乘法方式对输入信号进行预失真，从而大大增强了有效的校正带宽。 此外，使用瞬时反馈包络失真信号的预失真方案允许校正可能发生在校正环路带宽内的任何失真，包括包络记忆效应。

    Systems, Methods, and Apparatuses for Linear Polar Transmitters
    45.
    发明申请
    Systems, Methods, and Apparatuses for Linear Polar Transmitters 失效
    线性极性发射机的系统，方法和装置

    公开(公告)号：US20070298734A1

    公开(公告)日：2007-12-27

    申请号：US11754112

    申请日：2007-05-25

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H04B1/04

    CPC分类号： H03F1/3282 ,  H03F1/0211 ,  H03F2200/324 ,  H03F2200/393 ,  H03F2200/504 ,  H04L27/361 ,  H04L27/368

    摘要： Systems and methods are disclosed for providing a linear polar transmitter. The systems and methods may include generating an input amplitude signal and an input phase signal, where the input amplitude signal and the input phase signal are orthogonal components of an input signal, and where the input amplitude signal and the input phase signal are generated on respective first and second signal paths. The systems and methods may also include processing the input amplitude signal along the first signal path using an amplitude error signal to generate a predistorted amplitude signal, and processing the input phase signal along the second signal path using an phase error signal to generate a predistorted phase signal. The systems and methods may also include providing the predistorted amplitude signal along the first signal path and the predistorted phase signal along the second signal path to a power amplifier to generate an output signal, where the amplitude error signal is generated from a comparison of at least an amplitude portion of the output signal with the predistorted amplitude signal and where the phase error signal is generated from a comparison of at least a phase portion of the output signal with the predistorted phase signal.

    摘要翻译： 公开了用于提供线性极化发射器的系统和方法。 系统和方法可以包括产生输入幅度信号和输入相位信号，其中输入幅度信号和输入相位信号是输入信号的正交分量，并且其中输入幅度信号和输入相位信号在相应的 第一和第二信号路径。 系统和方法还可以包括使用幅度误差信号来处理沿着第一信号路径的输入幅度信号，以产生预失真振幅信号，并使用相位误差信号来处理沿第二信号路径的输入相位信号，以产生预失真相位 信号。 系统和方法还可以包括沿着第一信号路径提供预失真振幅信号，以及沿着第二信号路径向功率放大器提供预失真相位信号以产生输出信号，其中从至少比较产生振幅误差信号 具有预失真振幅信号的输出信号的振幅部分，并且其中通过将输出信号的至少相位部分与预失真相位信号进行比较来产生相位误差信号。

    Systems, Methods, and Apparatuses for Multi-Path Orthogonal Recursive Predistortion
    46.
    发明申请
    Systems, Methods, and Apparatuses for Multi-Path Orthogonal Recursive Predistortion 有权
    用于多径正交递归预失真的系统，方法和装置

    公开(公告)号：US20070290749A1

    公开(公告)日：2007-12-20

    申请号：US11754122

    申请日：2007-05-25

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H03F1/26

    CPC分类号： H03F1/0222 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0233 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F1/3294 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/78 ,  H03F2200/99 ,  H04L27/368

    摘要： System and methods are provided for multi-path orthogonal recursive predistortion. The systems and methods may include generating a first orthogonal signal and a second orthogonal signal, where the first and second signals are orthogonal components of an input signal and processing, at a first predistortion module, the first orthogonal signal and a first error correction signal to generate a first predistorted signal. The system and methods may also include processing, at a second predistortion module, the second orthogonal signal and a second error correction signal to generate a second predistorted signal, and providing the generated first and second predistorted signals to a nonlinear device, where the nonlinear device generates an output based upon the first and second predistorted signals, where the first error correction signal is determined based upon an analysis of the output and the first predistorted signal, and where the second error correction signal is determined based upon an analysis of the output and the second predistorted signal.

    摘要翻译： 为多径正交递归预失真提供了系统和方法。 系统和方法可以包括产生第一正交信号和第二正交信号，其中第一和第二信号是输入信号的正交分量，并且在第一预失真模块处处理第一正交信号和第一纠错信号， 生成第一个预失真信号。 系统和方法还可以包括在第二预失真模块处处理第二正交信号和第二纠错信号以产生第二预失真信号，以及将生成的第一和第二预失真信号提供给非线性装置，其中非线性装置 基于第一和第二预失真信号产生输出，其中基于输出和第一预失真信号的分析确定第一纠错信号，并且其中基于输出的分析确定第二纠错信号，并且 第二个预失真信号。

    Linearization systems and methods for variable attenuators
    49.
    发明授权
    Linearization systems and methods for variable attenuators 有权
    可变衰减器的线性化系统和方法

    公开(公告)号：US08179205B2

    公开(公告)日：2012-05-15

    申请号：US12784723

    申请日：2010-05-21

    申请人： Yanyu Huang ,  Wangmyong Woo ,  Chang-Ho Lee ,  Joy Laskar

    发明人： Yanyu Huang ,  Wangmyong Woo ,  Chang-Ho Lee ,  Joy Laskar

    IPC分类号： H01P1/22

    CPC分类号： H01P1/22 ,  H03G1/007 ,  H03H11/245

    摘要： Systems and methods for provided for linearization systems and methods for variable attenuators. The variable attenuators can include series transistors along a main signal path from the input to output, as well as shunt transistors. A bootstrapping body bias circuit can be used with one or of the series transistors to allow the body of a connected transistor to swing responsive to a received RF input signal. As the RF signal increases and affects the gate-to-source voltage difference of a transistor, a bootstrapping body bias circuit can adaptively adjust the threshold voltage of the connected transistor and compensate the channel resistance variation resulting from gate-to-source voltage swing. The bootstrapping body bias circuit can be implemented using passive elements, active elements, or a combination thereof.

    摘要翻译： 为可变衰减器的线性化系统和方法提供的系统和方法。 可变衰减器可以包括沿着从输入到输出的主信号路径的串联晶体管，以及分流晶体管。 自举体偏置电路可以与一个或串联晶体管一起使用，以允许连接的晶体管的主体响应于接收到的RF输入信号而摆动。 随着RF信号增加并影响晶体管的栅极 - 源极电压差，自举体偏置电路可以自适应地调节连接的晶体管的阈值电压，并补偿由栅极至源极电压摆幅引起的沟道电阻变化。 自举体偏置电路可以使用无源元件，有源元件或其组合来实现。

    LINEARIZATION SYSTEMS AND METHODS FOR VARIABLE ATTENUATORS
    50.
    发明申请
    LINEARIZATION SYSTEMS AND METHODS FOR VARIABLE ATTENUATORS 有权
    线性化系统和变量衰减器的方法

    公开(公告)号：US20110285481A1

    公开(公告)日：2011-11-24

    申请号：US12784723

    申请日：2010-05-21

    申请人： Yanyu Huang ,  Wangmyong Woo ,  Chang-Ho Lee ,  Joy Laskar

    发明人： Yanyu Huang ,  Wangmyong Woo ,  Chang-Ho Lee ,  Joy Laskar

    IPC分类号： H01P1/22

    CPC分类号： H01P1/22 ,  H03G1/007 ,  H03H11/245

    摘要： Systems and methods for provided for linearization systems and methods for variable attenuators. The variable attenuators can include series transistors along a main signal path from the input to output, as well as shunt transistors. A bootstrapping body bias circuit can be used with one or of the series transistors to allow the body of a connected transistor to swing responsive to a received RF input signal. As the RF signal increases and affects the gate-to-source voltage difference of a transistor, a bootstrapping body bias circuit can adaptively adjust the threshold voltage of the connected transistor and compensate the channel resistance variation resulting from gate-to-source voltage swing. The bootstrapping body bias circuit can be implemented using passive elements, active elements, or a combination thereof.

    摘要翻译： 为可变衰减器的线性化系统和方法提供的系统和方法。 可变衰减器可以包括沿着从输入到输出的主信号路径的串联晶体管，以及分流晶体管。 自举体偏置电路可以与一个或串联晶体管一起使用，以允许连接的晶体管的主体响应于接收到的RF输入信号而摆动。 随着RF信号增加并影响晶体管的栅极 - 源极电压差，自举体偏置电路可以自适应地调节连接的晶体管的阈值电压，并补偿由栅极至源极电压摆幅引起的沟道电阻变化。 自举体偏置电路可以使用无源元件，有源元件或其组合来实现。