CIRCUIT FOR REDUCING NOISE IN A RADIO RECEIVER BY THE USE OF A low-pass filter with adjustable pass band.

• 1. 一种通带带宽可调的低通滤波器 [P] . 中国专利： CN1983808B . 2010.05.05
• 2. 一种通带带宽可调的低通滤波器 [P] . 中国专利： CN1983808A . 2007-06-20
• 3. Circuit for damping of the wire in a radio receiver by using a low-pass filter with an adjustable passband [P] . 德国专利： DE3418037A1 . 1984-11-22

  机译： 通过使用具有可调通带的低通滤波器对无线电接收器中的导线进行阻尼的电路

• 4. CIRCUIT FOR MITIGATION OF DISTURBANCES IN A RADIO RECEIVER THANKS TO THE USE OF A LOW-PASS FILTER WITH ADJUSTABLE BANDWIDTH [P] . 法国专利： FR2546350A1 . 1984-11-23

  机译： 减轻无线电接收器中的干扰的电路，感谢使用可调节带宽的低通滤波器

• 5. Noise reduction method, e.g. for car radio receiver, involves varying audio signal passband with adaptive low-pass filter controlled according to received signal strength [P] . 德国专利： DE10202635A1 . 2003-08-07

  机译： 降噪方法，例如用于汽车无线电接收机，涉及通过根据接收信号强度控制的自适应低通滤波器来改变音频信号通带

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• 6. Continuous-Time Low-Pass Filters for Integrated Wideband Radio Receivers [O] . Ville Saari, Jussi Ryynänen, Saska Lindfors 2012

• 1. Design and Implementation of Low-Pass, High-Pass and Band-Pass Finite Impulse Response (FIR) Filters Using FPGA [J] . Emmanuel S. Kolawole ,Warsame H. Ali ,Penrose Cofie . 电路与系统（英文） . 2015,第2期
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• 3. Creating Distinctive Connections between Multifunctional Microwave Circuits and Mobile-Terminal Radio-Frequency Integrated Chips Using Integrated Passive Device Technology [J] . Yongle Wu ,Mengdan Kong ,Zheng Zhuang . 中国通信 . 2021,第008期
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