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
    • 7. 发明申请
    • Envelope detector having reduced harmonic interference
    • 包络检测器具有减少的谐波干扰
    • US20090015295A1
    • 2009-01-15
    • US11827184
    • 2007-07-11
    • Ichiro AokiSetu MohtaDavid Kang
    • Ichiro AokiSetu MohtaDavid Kang
    • H03K5/153
    • H03D1/18H03D2200/0086
    • A system for detecting the envelope of a signal is provided. The system includes a first envelope detector generating a first envelope signal of an input RF signal, such as an envelope signal representing the positive peak envelope of the input RF signal. A second envelope detector generates a second envelope signal of the input RF signal, such as an envelope signal representing the negative peak envelope of the input RF signal. A signal combiner receives the first envelope signal and the second envelope signal and generates an even-order harmonic compensated envelope signal, such as by compensating for the difference between the positive peak envelope and the negative peak envelope.
    • 提供一种用于检测信号包络的系统。 该系统包括产生输入RF信号的第一包络信号的第一包络检测器,例如表示输入RF信号的正峰值包络的包络信号。 第二包络检测器产生输入RF信号的第二包络信号,例如表示输入RF信号的负峰值包络的包络信号。 信号组合器接收第一包络信号和第二包络信号,并且通过补偿正峰值包络和负峰值包络之间的差异来产生偶次谐波补偿的包络信号。
    • 9. 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。