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    • 1. 发明授权
    • Predistortion apparatus, system, and method
    • 预失真装置,系统和方法
    • US07812669B2
    • 2010-10-12
    • US12485456
    • 2009-06-16
    • Hui LiZhan ShiJianmin Zhou
    • Hui LiZhan ShiJianmin Zhou
    • H03F1/26
    • H03F1/3247H03F2201/3233
    • The present invention discloses a predistortion apparatus, a predistortion system and a predistortion method. The predistorter comprises a modular value calculating section, for performing modular arithmetic on an information source input signal inputted from an information source; an orthogonal lookup table value acquiring section, for searching N stored lookup tables orthogonal to one another, finding out corresponding output of each lookup table in accordance with the modular value of the information source input signal, and acquiring N lookup table values, wherein N is an integer greater than 1; a multiplying section, for multiplying the N lookup table values acquired by the orthogonal lookup table value acquiring section with N amplitude adjustment factors to obtain N amplitude adjustment values, and multiplying the N lookup table values with N phase adjustment factors to obtain N phase adjustment values; and a summating section, for summating the N amplitude adjustment values to obtain an amplitude predistortion value, and summating the N phase adjustment values to obtain a phase predistortion value.
    • 本发明公开了一种预失真装置,预失真系统和预失真方法。 预失真器包括模块值计算部分,用于对从信息源输入的信息源输入信号进行模数运算; 正交查找表值获取部分,用于搜索彼此正交的N个存储的查找表,根据信息源输入信号的模块值找出每个查找表的相应输出,并获取N个查找表值,其中N是 大于1的整数; 乘法部分,用于将由正交查找表值获取部分获取的N个查找表值与N个幅度调整因子相乘以获得N个幅度调整值,并将N个查找表值与N个相位调整因子相乘以获得N个相位调整值 ; 以及求和部分,用于对N个振幅调整值进行求和以获得幅度预失真值,并且对N个相位调整值进行求和以获得相位预失真值。
    • 2. 发明授权
    • Baseband predistortion device and method
    • 基带预失真装置及方法
    • US07812670B2
    • 2010-10-12
    • US12494095
    • 2009-06-29
    • Zhan ShiHui LiJianmin ZhouGang Sun
    • Zhan ShiHui LiJianmin ZhouGang Sun
    • H03F1/26
    • H03F1/3247H03F2201/3233
    • The present invention discloses a baseband predistorter and baseband predistortion method. The baseband predistorter comprising: an address generator for calculating an address of a phase basic lookup table and an address of an amplitude basic lookup table; a parameter determining unit for determining a phase translational amount, an amplitude translational amount, a phase curvature adjustment amount and an amplitude curvature adjustment amount; a phase translating unit for changing the address in accordance with the phase translational amount; an amplitude translating unit for changing the address in accordance with the amplitude translational amount; a phase basic lookup table searching section for determining a corresponding phase output; an amplitude basic lookup table searching section, for determining a corresponding amplitude output; a phase curvature adjusting section, for adjusting the phase output; and an amplitude curvature adjusting section, for adjusting the amplitude output.
    • 本发明公开了一种基带预失真器和基带预失真方法。 该基带预失真器包括:地址发生器,用于计算相位基本查找表的地址和幅度基本查找表的地址; 用于确定相位平移量,振幅平移量,相位曲率调整量和振幅曲率调节量的参数确定单元; 相位转换单元,用于根据相位转换量改变地址; 幅度转换单元,用于根据振幅平移量改变地址; 相位基本查找表搜索部分,用于确定相应的相位输出; 幅度基本查找表搜索部分,用于确定对应的幅度输出; 相位曲率调整部,用于调整相位输出; 以及用于调节振幅输出的振幅曲率调节部。
    • 4. 发明申请
    • Predistortion Device, Method for Predistortion, and Transmitter/Receiver System
    • 预失真装置,预失真方法和发射机/接收机系统
    • US20120214428A1
    • 2012-08-23
    • US13399156
    • 2012-02-17
    • Jianmin ZhouPei ChenHui LiZhan Shi
    • Jianmin ZhouPei ChenHui LiZhan Shi
    • H04B1/44
    • H04L27/368
    • The embodiments of the present invention provide a predistortion device, method for predistortion and transmitter/receiver system. The predistortion device comprises a predistortion unit, and the predistortion device further comprises: a signal acquiring unit to process the output signals of a transmitting circuit to obtain distorted signals; a signal coupling unit to couple the distorted signals acquired by the signal acquiring unit to the receiving signals inputted to a receiving circuit; and a signal processing unit to decouple the output signals of the receiving circuit to acquire the distorted signals and the receiving signals. With the embodiments of the present invention, an analog receiving circuit may be reused in a half duplexing system and a full duplexing system, and the requirement on the analog receiving circuit is lowered, thereby reducing the cost.
    • 本发明的实施例提供了一种预失真装置,用于预失真和发射机/接收机系统的方法。 预失真装置包括预失真单元,预失真装置还包括:信号获取单元,用于处理发送电路的输出信号以获得失真信号; 信号耦合单元,用于将由信号获取单元获取的失真信号耦合到输入到接收电路的接收信号; 以及信号处理单元,用于对接收电路的输出信号进行去耦以获取失真的信号和接收信号。 利用本发明的实施例,模拟接收电路可以在半双工系统和全双工系统中重复使用,并且对模拟接收电路的要求降低,从而降低了成本。
    • 5. 发明申请
    • Baseband Predistortion Device And Method
    • 基带预失真装置及方法
    • US20100001795A1
    • 2010-01-07
    • US12494095
    • 2009-06-29
    • Zhan SHIHui LiJianmin ZhouGang Sun
    • Zhan SHIHui LiJianmin ZhouGang Sun
    • H03F1/26
    • H03F1/3247H03F2201/3233
    • The present invention discloses a baseband predistorter and baseband predistortion method. The baseband predistorter comprising: an address generator for calculating an address of a phase basic lookup table and an address of an amplitude basic lookup table; a parameter determining unit for determining a phase translational amount, an amplitude translational amount, a phase curvature adjustment amount and an amplitude curvature adjustment amount; a phase translating unit for changing the address in accordance with the phase translational amount; an amplitude translating unit for changing the address in accordance with the amplitude translational amount; a phase basic lookup table searching section for determining a corresponding phase output; an amplitude basic lookup table searching section, for determining a corresponding amplitude output; a phase curvature adjusting section, for adjusting the phase output; and an amplitude curvature adjusting section, for adjusting the amplitude output.
    • 本发明公开了一种基带预失真器和基带预失真方法。 该基带预失真器包括:地址发生器,用于计算相位基本查找表的地址和幅度基本查找表的地址; 用于确定相位平移量,振幅平移量,相位曲率调整量和振幅曲率调节量的参数确定单元; 相位转换单元,用于根据相位转换量改变地址; 幅度转换单元,用于根据振幅平移量改变地址; 相位基本查找表搜索部分,用于确定相应的相位输出; 幅度基本查找表搜索部分,用于确定对应的幅度输出; 相位曲率调整部,用于调整相位输出; 以及用于调节振幅输出的振幅曲率调节部。
    • 6. 发明申请
    • POWER AMPLIFICATION DEVICE AND METHOD FOR ACQUIRING POWER ADJUSTING COEFFICIENT
    • 功率放大装置和获取功率调节系数的方法
    • US20120081178A1
    • 2012-04-05
    • US13246516
    • 2011-09-27
    • Zhan SHITakanori IwamatsuJianmin Zhou
    • Zhan SHITakanori IwamatsuJianmin Zhou
    • H03F1/26
    • H03F1/3258H03F1/3247H03F3/189H03F3/24
    • An embodiment of the invention discloses a power amplification device and method and a method for acquiring a power adjusting coefficient. The power amplification device according to one embodiment of the invention includes: a power control module configured to perform power adjusting on an input signal; a power amplification module configured to perform power amplification on the signal subjected to the power adjusting by the power control module; and a pre-distortion module configured to compensate for nonlinear characteristic of the power amplification module; wherein, said power control module is coupled between said pre-distortion module and said power amplification module in series; alternatively, said pre-distortion module is coupled between said power control module and said power amplification module in series. With the embodiment of the invention, a transmitter can be provided with a spectrum including a low side lobe even upon startup.
    • 本发明的实施例公开了一种功率放大装置和方法以及用于获取功率调节系数的方法。 根据本发明的一个实施例的功率放大装置包括:功率控制模块,被配置为对输入信号进行功率调整; 功率放大模块,被配置为对由功率控制模块进行功率调整的信号执行功率放大; 以及预失真模块,被配置为补偿所述功率放大模块的非线性特性; 其中,所述功率控制模块串联耦合在所述预失真模块和所述功率放大模块之间; 或者,所述预失真模块串联连接在所述功率控制模块和所述功率放大模块之间。 利用本发明的实施例,即使在启动时,也可以向发射机提供包括低旁瓣的频谱。
    • 7. 发明授权
    • Power amplification device and method for acquiring power adjusting coefficient
    • 功率放大装置及获取功率调节系数的方法
    • US08548402B2
    • 2013-10-01
    • US13246516
    • 2011-09-27
    • Zhan ShiTakanori IwamatsuJianmin Zhou
    • Zhan ShiTakanori IwamatsuJianmin Zhou
    • H04B1/04H04K3/00
    • H03F1/3258H03F1/3247H03F3/189H03F3/24
    • An embodiment of the invention discloses a power amplification device and method and a method for acquiring a power adjusting coefficient. The power amplification device according to one embodiment of the invention includes: a power control module configured to perform power adjusting on an input signal; a power amplification module configured to perform power amplification on the signal subjected to the power adjusting by the power control module; and a pre-distortion module configured to compensate for nonlinear characteristic of the power amplification module; wherein, said power control module is coupled between said pre-distortion module and said power amplification module in series; alternatively, said pre-distortion module is coupled between said power control module and said power amplification module in series. With the embodiment of the invention, a transmitter can be provided with a spectrum including a low side lobe even upon startup.
    • 本发明的实施例公开了一种功率放大装置和方法以及用于获取功率调节系数的方法。 根据本发明的一个实施例的功率放大装置包括:功率控制模块,被配置为对输入信号进行功率调整; 功率放大模块,被配置为对由功率控制模块进行功率调整的信号执行功率放大; 以及预失真模块,被配置为补偿所述功率放大模块的非线性特性; 其中,所述功率控制模块串联耦合在所述预失真模块和所述功率放大模块之间; 或者,所述预失真模块串联连接在所述功率控制模块和所述功率放大模块之间。 利用本发明的实施例,即使在启动时,也可以向发射机提供包括低旁瓣的频谱。
    • 8. 发明申请
    • APPARATUS FOR AND METHOD OF CONTROLLING A PREDISTORTER, AND METHOD OF DETECTING POWER CONTROL STATE
    • 控制预测器的装置和方法,以及检测功率控制状态的方法
    • US20120133433A1
    • 2012-05-31
    • US13174067
    • 2011-06-30
    • Hui LITakanori IwamatsuJianmin Zhou
    • Hui LITakanori IwamatsuJianmin Zhou
    • H03F1/26
    • H03F1/3247H03F1/3258H03F2201/3212H04L27/368
    • This invention relates to an apparatus for and a method of controlling a predistorter, and a method of detecting power control state. The method of controlling a predistorter, which is for predistorting a signal input into a power amplifier, comprises storing predistortion coefficients used by the predistorter; acquiring indices each indicative of an output power of the power amplifier; detecting, based on the indices acquired in the acquiring, whether the power amplifier is in a state of undergoing power control; and supplying the stored predistortion coefficients to the predistorter when it is detected that the power amplifier is in the state of undergoing power control, or supplying, when it is detected that the power amplifier is not in the state of undergoing power control, to the predistorter predistortion coefficients calculated by a unit that performs predistortion coefficient adaptive updating operation.
    • 本发明涉及一种用于控制预失真器的装置和方法,以及一种检测功率控制状态的方法。 控制用于将输入到功率放大器的信号预失真的预失真器的方法包括存储预失真器使用的预失真系数; 获取每个指示功率放大器的输出功率的指标; 基于在获取中获取的指标,检测功率放大器是否处于进行功率控制的状态; 并且当检测到功率放大器处于进行功率控制的状态时,将所存储的预失真系数提供给预失真器,或者当检测到功率放大器未处于功率控制状态时,将其提供给预失真器 由执行预失真系数自适应更新操作的单元计算的预失真系数。
    • 9. 发明授权
    • Apparatus for and method of controlling a predistorter, and method of detecting power control state
    • 用于控制预失真器的装置和方法,以及检测功率控制状态的方法
    • US08558615B2
    • 2013-10-15
    • US13174067
    • 2011-06-30
    • Hui LiTakanori IwamatsuJianmin Zhou
    • Hui LiTakanori IwamatsuJianmin Zhou
    • H03F1/26
    • H03F1/3247H03F1/3258H03F2201/3212H04L27/368
    • This invention relates to an apparatus for and a method of controlling a predistorter, and a method of detecting power control state. The method of controlling a predistorter, which is for predistorting a signal input into a power amplifier, comprises storing predistortion coefficients used by the predistorter; acquiring indices each indicative of an output power of the power amplifier; detecting, based on the indices acquired in the acquiring, whether the power amplifier is in a state of undergoing power control; and supplying the stored predistortion coefficients to the predistorter when it is detected that the power amplifier is in the state of undergoing power control, or supplying, when it is detected that the power amplifier is not in the state of undergoing power control, to the predistorter predistortion coefficients calculated by a unit that performs predistortion coefficient adaptive updating operation.
    • 本发明涉及一种用于控制预失真器的装置和方法,以及一种检测功率控制状态的方法。 控制用于将输入到功率放大器的信号预失真的预失真器的方法包括存储预失真器使用的预失真系数; 获取每个指示功率放大器的输出功率的指标; 基于在获取中获取的指标,检测功率放大器是否处于进行功率控制的状态; 并且当检测到功率放大器处于进行功率控制的状态时,将所存储的预失真系数提供给预失真器,或者当检测到功率放大器未处于进行功率控制的状态时,将其提供给预失真器 由执行预失真系数自适应更新操作的单元计算的预失真系数。
    • 10. 发明授权
    • Method for preparing controlled release fertilizer with water-based coating on the basis of closed circulating fluidized bed, and device therefor
    • 在封闭循环流化床的基础上制备具有水性涂层的控释肥料的方法及其装置
    • US09561988B2
    • 2017-02-07
    • US14388817
    • 2012-04-23
    • Changwen DuYazhen ShenJianmin Zhou
    • Changwen DuYazhen ShenJianmin Zhou
    • C05G3/00B05B13/00B05B7/02B05B12/00
    • C05G3/0029B05B7/02B05B12/004B05B13/00C05G3/0011Y02P20/123
    • Disclosed is a method for making a controlled release fertilizer with water-based coating using a closed large numerically controlled fluidized bed and a device therefor: collecting a granular fertilizer with a suitable granule size into a barrel; sucking the same into a coating cavity by negative pressure and making the same fluid; directing a water-based coating liquid into a spray gun, then spraying the liquid onto the surface of the fertilizer granules after nebulization; collecting the impurities in the air discharged from the coating cavity by means of a cyclone separator; dehumidifying the air discharged from the cyclone separator by means of a fluidized drying tower; and then the coating is completed. The closed large numerically controlled fluidized bed coating machine has a fluidized bed coating machine main tower, a cyclone separator, a fluidized drying tower, a blower, a heater, an air compressor, a coating liquid inlet system and a control system, and is characterized in that it has a closed air circulation system, and is provided with a dehumidifying mechanism and a water condensing mechanism for the fluidized drying tower. The present invention can reduce energy consumption, increase heating efficiency and has moisture-absorbing function; it can prevent the spray gun from blocking; it has the function of automatic feeding, which improves the efficiency of coating; therefore it is important for the achievement of a water-based coating process.
    • 公开了一种使用封闭的大型数控流化床制备具有水基涂层的控释肥料的方法及其装置:将具有合适颗粒尺寸的颗粒肥料收集到桶中; 通过负压将其吸入涂层腔中并制成相同的流体; 将水性涂布液引入喷枪中,然后在雾化后将液体喷洒到肥料颗粒表面上; 通过旋风分离器收集从涂层腔排出的空气中的杂质; 通过流化干燥塔对从旋风分离器排出的空气进行除湿; 然后涂层完成。 封闭的大型数控流化床涂布机具有流化床涂布机主塔,旋风分离器,流化干燥塔,鼓风机,加热器,空气压缩机,涂布液入口系统和控制系统,其特征在于 因为它具有封闭的空气循环系统,并且设置有用于流化干燥塔的除湿机构和水冷凝机构。 本发明可以降低能耗,提高加热效率并具有吸湿功能; 可防止喷枪堵塞; 具有自动进料功能,提高了涂层效率; 因此,实现水性涂料工艺是重要的。