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    • 13. 发明授权
    • Radio front end with resonant transmit/receive switch
    • 无线电前端带有谐振发射/接收开关
    • US07920833B2
    • 2011-04-05
    • US11827188
    • 2007-07-11
    • Dongjaing QiaoScott KeeIchiro AokiDonald McClymont
    • Dongjaing QiaoScott KeeIchiro AokiDonald McClymont
    • H04B1/44
    • H04B1/44
    • A device having a radio front end is provided. The radio front end includes an inductor having a first end and a second end. A capacitor having a first end and a second end is connected to the second end of the inductor. An antenna is connected to the second end of the inductor and the second end of the capacitor. A first switch is connected to the first end of the inductor and the first end of the capacitor, wherein the inductor and capacitor form a resonant circuit when the first switch is closed. A second switch is connected to the resonant circuit, the second switch connecting the resonant circuit to ground through a low impedance when the first switch is closed. A third switch is connected to a transmit power amplifier connecting the transmit power amplifier to ground through a low impedance when the first switch is closed.
    • 提供具有无线电前端的设备。 无线电前端包括具有第一端和第二端的电感器。 具有第一端和第二端的电容器连接到电感器的第二端。 天线连接到电感器的第二端和电容器的第二端。 第一开关连接到电感器的第一端和电容器的第一端,其中当第一开关闭合时,电感器和电容器形成谐振电路。 第二开关连接到谐振电路,第二开关在第一开关闭合时通过低阻抗将谐振电路连接到地。 当第一开关闭合时,第三开关连接到通过低阻抗将发射功率放大器接地的发射功率放大器。
    • 19. 发明授权
    • Electric double-layer capacitor and method for manufacturing the same
    • 双电层电容器及其制造方法
    • US07706129B2
    • 2010-04-27
    • US12300619
    • 2007-05-25
    • Eri HiroseYasuyuki ItoSatomi OnishiMitsuru IwaiTakumi YamaguchiIchiro AokiKouji MoriyamaYoshiki Hashimoto
    • Eri HiroseYasuyuki ItoSatomi OnishiMitsuru IwaiTakumi YamaguchiIchiro AokiKouji MoriyamaYoshiki Hashimoto
    • H01G9/00
    • H01G11/28H01G11/74H01G11/84H01G11/86Y02E60/13Y10T29/417
    • In an electric double-layer capacitor, resistance of a polarizable electrode layer is reduced and gas generation inside a case is suppressed in an attempt to improve reliability. On that account, an electric double-layer capacitor is provided, which is obtained by housing in a case, together with a driving electrolyte, a capacitor element wound with a separator interposed between electrodes being paired anode and cathode electrodes in each of which polarizable electrode layers are formed on and lead wires are fixed to both sides of a current collector made of metallic foil, such that the polarizable electrode layers are opposed to each other. Further, an electric double-layer capacitor is provided in which the lead wire is fixed to a polarizable-electrode-layer-removed section on the electrode where the polarizable electrode layer has been removed, and an area of the polarizable-electrode-layer-removed section is not smaller than 1 and not larger than 2.0 when a project area of a portion where the lead wire is connected with the current collector is set to 1.
    • 在双电层电容器中,为了提高可靠性,可以降低极化电极层的电阻,并抑制气体产生。 因此,提供了一种双电层电容器,其通过壳体与驱动电解质一起容纳电容器元件而获得,所述电容器元件被插入电极之间的间隔件,所述电极元件设置在成对的阳极和阴极电极之间,其中每个极化电极 在金属箔的集电体的两侧固定引线,使可极化电极层相对。 此外,提供一种双电层电容器,其中引线固定到已去除可极化电极层的电极上的可极化电极层去除部分上,并且可极化电极层 - 当引线与集电器连接的部分的投影区域设定为1时,取出部分不小于1且不大于2.0。
    • 20. 发明授权
    • System and method for low delay corrective feedback power amplifier control
    • 低延迟校正反馈功率放大器控制系统和方法
    • US07570928B2
    • 2009-08-04
    • US11771130
    • 2007-06-29
    • Rahul MagoonMorten DamgaardRoberto Aparicio JooScott D. KeeIchiro Aoki
    • Rahul MagoonMorten DamgaardRoberto Aparicio JooScott D. KeeIchiro Aoki
    • H04B1/66
    • H03G3/004H03F1/34H03F3/19H03F3/24H04B2001/0433
    • A system for controlling the power output of a power amplifier includes a power amplifier through which a transmit signal having an amplitude-modulated (AM) component and a phase-modulated (PM) component is passed and amplified, the power amplifier comprising a forward path, a feedback signal comprising a portion of the output of the power amplifier, a first control loop configured to receive the feedback signal and configured to apply an amplitude modulated (AM) signal to the power amplifier and configured to control the gain of the power amplifier, a second control loop configured to receive the feedback signal and configured to correct for offsets in the forward path and to linearize the first control loop; and a third control loop configured to receive the feedback signal and configured to control the phase of the PM component of the transmit signal.
    • 用于控制功率放大器的功率输出的系统包括:功率放大器,具有幅度调制(AM)分量和相位调制(PM)分量的发射信号通过该功率放大器通过并放大,所述功率放大器包括前向路径 ,包括功率放大器的输出的一部分的反馈信号;第一控制回路,被配置为接收反馈信号并被配置为将幅度调制(AM)信号施加到功率放大器并且被配置为控制功率放大器的增益 第二控制回路,被配置为接收所述反馈信号并被配置为校正所述正向通路中的偏移并且使所述第一控制回路线性化; 以及第三控制回路,被配置为接收所述反馈信号并被配置为控制所述发射信号的PM分量的相位。