会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • Amplifier
    • 放大器
    • US20090206927A1
    • 2009-08-20
    • US12385865
    • 2009-04-22
    • Yoichi OkuboMasaki SutoYasuhiro TakedaMasaru Adachi
    • Yoichi OkuboMasaki SutoYasuhiro TakedaMasaru Adachi
    • H03F3/68
    • H03F1/0288
    • There is provided an amplifier for combining outputs of a plurality of amplifying circuits to generate an amplifier output. The amplifier includes a first amplifying circuit for operating a first amplifying device in class-AB, wherein the first amplifying circuit is one among the plurality of the amplifying circuits; a second amplifying circuit for operating a second amplifying device in class-B or class-C, wherein the second amplifying circuit is one among the plurality of the amplifying circuits; and a summing node at which an output of the first amplifying circuit is combined with an output of the second amplifying circuit via a first impedance transformer containing a transmission line of an electrical length other than λ/4. The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.
    • 提供了用于组合多个放大电路的输出以产生放大器输出的放大器。 放大器包括用于操作AB类中的第一放大装置的第一放大电路,其中第一放大电路是多个放大电路之一; 用于在B类或C类中操作第二放大装置的第二放大电路,其中第二放大电路是多个放大电路之一; 以及求和节点,第一放大电路的输出通过包含除λ/ 4以外的电长度的传输线的第一阻抗变换器与第二放大电路的输出相结合。 第二放大装置经由输出匹配电路和包含传输线的第二阻抗变换器连接到求和节点。
    • 2. 发明授权
    • Amplifier
    • 放大器
    • US07847630B2
    • 2010-12-07
    • US11255874
    • 2005-10-24
    • Yoichi OkuboMasaki SutoYasuhiro TakedaMasaru Adachi
    • Yoichi OkuboMasaki SutoYasuhiro TakedaMasaru Adachi
    • H03F3/28
    • H03F1/0288
    • There is provided an amplifier for combining outputs of a plurality of amplifying circuits to generate an amplifier output. The amplifier includes a first amplifying circuit for operating a first amplifying device in class-AB, wherein the first amplifying circuit is one among the plurality of the amplifying circuits; a second amplifying circuit for operating a second amplifying device in class-B or class-C, wherein the second amplifying circuit is one among the plurality of the amplifying circuits; and a summing node at which an output of the first amplifying circuit is combined with an output of the second amplifying circuit via a first impedance transformer containing a transmission line of an electrical length other than λ/4. The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.
    • 提供了用于组合多个放大电路的输出以产生放大器输出的放大器。 放大器包括用于操作AB类中的第一放大装置的第一放大电路,其中第一放大电路是多个放大电路之一; 用于在B类或C类中操作第二放大装置的第二放大电路,其中第二放大电路是多个放大电路之一; 以及求和节点,第一放大电路的输出通过包含除λ/ 4以外的电长度的传输线的第一阻抗变换器与第二放大电路的输出相结合。 第二放大装置经由输出匹配电路和包含传输线的第二阻抗变换器连接到求和节点。
    • 5. 发明授权
    • Amplifying system
    • 放大系统
    • US07714648B2
    • 2010-05-11
    • US11920629
    • 2006-05-17
    • Yoichi OkuboToshio NojimaYasuhiro TakedaManabu NakamuraMasaru Adachi
    • Yoichi OkuboToshio NojimaYasuhiro TakedaManabu NakamuraMasaru Adachi
    • H03F3/68
    • H03F1/0288H03F1/56H03F3/602H03F2200/423
    • The performance of an amplifying system is improved by achieving adequate matching. The amplifying system for amplifying signals includes distributing means 1 that distribute a signal, a carrier amplifier 2 that amplifies the distributed first signal in Class AB, a peak amplifier 4 that amplifies the distributed second signal in Class B or Class C, a first transmission line having a given electric length and being connected to an output of the carrier amplifier, a second transmission line having a given electric length and being connected to an output of the peak amplifier, and a combining end 18 for combining an output of the first transmission line and an output of the second transmission line. An impedance of the combining end is differentiated from a parallel impedance of load impedances of the carrier amplifier and the peak amplifier at the maximum power converted respectively by the first transmission line and the second transmission line, or is set as a parallel impedance in which the load impedances of the carrier amplifier and the peak amplifier at the maximum power are changed.
    • 通过实现充分匹配,可以提高放大系统的性能。 用于放大信号的放大系统包括分配信号的分配装置1,放大AB类中分布的第一信号的载波放大器2,放大B类或C类中分布的第二信号的峰值放大器4,第一传输线 具有给定的电长度并连接到载波放大器的输出,具有给定电长度并连接到峰值放大器的输出的第二传输线,以及组合端18,用于组合第一传输线的输出 和第二传输线的输出。 组合端的阻抗与通过第一传输线和第二传输线分别转换的最大功率的载波放大器和峰值放大器的负载阻抗的并联阻抗不同,或者被设置为并联阻抗,其中 载波放大器和最大功率峰值放大器的负载阻抗发生变化。
    • 6. 发明申请
    • Amplifying system
    • 放大系统
    • US20090051438A1
    • 2009-02-26
    • US11920629
    • 2006-05-17
    • Yoichi OkuboToshio NojimaYasuhiro TakedaManabu NakamuraMasaru Adachi
    • Yoichi OkuboToshio NojimaYasuhiro TakedaManabu NakamuraMasaru Adachi
    • H03F1/07H03F1/56
    • H03F1/0288H03F1/56H03F3/602H03F2200/423
    • The performance of an amplifying system is improved by achieving adequate matching. The amplifying system for amplifying signals includes distributing means 1 that distribute a signal, a carrier amplifier 2 that amplifies the distributed first signal in Class AB, a peak amplifier 4 that amplifies the distributed second signal in Class B or Class C, a first transmission line having a given electric length and being connected to an output of the carrier amplifier, a second transmission line having a given electric length and being connected to an output of the peak amplifier, and a combining end 18 for combining an output of the first transmission line and an output of the second transmission line. An impedance of the combining end is differentiated from a parallel impedance of load impedances of the carrier amplifier and the peak amplifier at the maximum power converted respectively by the first transmission line and the second transmission line, or is set as a parallel impedance in which the load impedances of the carrier amplifier and the peak amplifier at the maximum power are changed.
    • 通过实现充分匹配,可以提高放大系统的性能。 用于放大信号的放大系统包括分配信号的分配装置1,放大AB类中分布的第一信号的载波放大器2,放大B类或C类中分布的第二信号的峰值放大器4,第一传输线 具有给定的电长度并连接到载波放大器的输出,具有给定电长度并连接到峰值放大器的输出的第二传输线,以及组合端18,用于组合第一传输线的输出 和第二传输线的输出。 组合端的阻抗与通过第一传输线和第二传输线分别转换的最大功率的载波放大器和峰值放大器的负载阻抗的并联阻抗不同,或者被设置为并联阻抗,其中 载波放大器和最大功率峰值放大器的负载阻抗发生变化。
    • 8. 发明申请
    • Non-linear distortion detection method and distortion compensation amplifying device
    • 非线性失真检测方法和失真补偿放大装置
    • US20080187035A1
    • 2008-08-07
    • US12078507
    • 2008-04-01
    • Manabu NakamuraYasuhiro TakedaYoichi OkuboMasaru AdachiNaoki Hongo
    • Manabu NakamuraYasuhiro TakedaYoichi OkuboMasaru AdachiNaoki Hongo
    • H04L27/01H03F1/32
    • H03F1/32H03F1/0288H03F1/3247H03F3/245H03F2200/207
    • A conventional power amplifying device has a problem that when a signal band is widened, sampling frequency for distortion detection is increased and an FFT calculation amount of a distortion compensation unit is increased, which increase a circuit size and power consumption. The present invention provides a non-linear distortion detection method and a distortion compensation amplifying device capable of suppressing increase of the circuit size and the power consumption even if the signal band is widened. A signal obtained by feeding back an output of a power amplifier is sampled by an A/D converter. An equalizer of a distortion detection unit uses an input signal d(n) of a predistorter as a reference symbol to detect an equalization error e(n) of the orthogonal demodulation signal u(n). An absolute value averaging unit outputs an absolute value of the equalization error e(n) which has been temporally averaged to E(n) as a distortion value to a control unit. According to the distortion value, the control unit adaptively controls the predistorter to perform distortion compensation.
    • 传统的功率放大装置存在如下问题:当信号频带变宽时,失真检测的采样频率增加,并且失真补偿单元的FFT计算量增加,这增加了电路尺寸和功耗。 本发明提供即使信号频带变宽也能够抑制电路尺寸和功耗的增加的非线性失真检测方法和失真补偿放大装置。 通过反馈功率放大器的输出而获得的信号由A / D转换器采样。 失真检测单元的均衡器使用预失真器的输入信号d(n)作为参考符号来检测正交解调信号u(n)的均衡误差e(n)。 绝对值平均单元将对时间平均的均衡误差e(n)的绝对值作为失真值输出到控制单元。 根据失真值,控制单元自适应地控制预失真器进行失真补偿。