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    AGC module and method for controlling noise figure and intermodulation characteristics therein
    1.
    发明授权
    AGC module and method for controlling noise figure and intermodulation characteristics therein 失效
    AGC模块及其中控制噪声系数和互调特性的方法

    公开(公告)号：US07626457B2

    公开(公告)日：2009-12-01

    申请号：US11863701

    申请日：2007-09-28

    申请人： Mark Mudd ,  Isaac Ali ,  Ruiyan Zhao ,  Nick Cowley ,  Colin Perry ,  Richard Goldman

    发明人： Mark Mudd ,  Isaac Ali ,  Ruiyan Zhao ,  Nick Cowley ,  Colin Perry ,  Richard Goldman

    IPC分类号： H03F3/45

    CPC分类号： H03F1/26 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03G1/0023

    摘要： An Automatic Gain Control (AGC) module for controlling Noise Figure (NF) and IM characteristics therein is disclosed. The AGC module comprises a plurality of AGC stages. Each AGC stage comprises a differential amplifier circuit, an input signal transistor and a current-steering circuit. Differential amplifier circuits of the plurality of AGC stages receive control signals at their differential inputs and their output is connected to a common load. The input signal transistors of the plurality of AGC stages receive a common input signal and is further coupled to the differential amplifier circuit and the current-steering circuit. The current-steering circuits and the control signals at the differential amplifier circuits control gain of the each AGC stage of the plurality of AGC stage, which is used to control the NF and the IM characteristics.

    摘要翻译： 公开了一种用于控制噪声系数（NF）和IM特性的自动增益控制（AGC）模块。 AGC模块包括多个AGC级。 每个AGC级包括差分放大器电路，输入信号晶体管和电流 - 转向电路。 多个AGC级的差分放大器电路在其差分输入处接收控制信号，并且其输出连接到公共负载。 多个AGC级的输入信号晶体管接收公共输入信号，并且还耦合到差分放大器电路和电流转向电路。 差动放大器电路中的电流导向电路和控制信号控制用于控制NF和IM特性的多个AGC级的每个AGC级的增益。

    AGC MODULE AND METHOD FOR CONTROLLING NOISE FIGURE AND INTERMODULATION CHARACTERISTICS THEREIN
    2.
    发明申请
    AGC MODULE AND METHOD FOR CONTROLLING NOISE FIGURE AND INTERMODULATION CHARACTERISTICS THEREIN 失效
    用于控制噪声图的AGC模块和方法及其互连特性

    公开(公告)号：US20090085660A1

    公开(公告)日：2009-04-02

    申请号：US11863701

    申请日：2007-09-28

    申请人： Mark Mudd ,  Isaac Ali ,  Ruiyan Zhao ,  Nick Cowley ,  Colin Perry ,  Richard Goldman

    发明人： Mark Mudd ,  Isaac Ali ,  Ruiyan Zhao ,  Nick Cowley ,  Colin Perry ,  Richard Goldman

    IPC分类号： H03F3/45

    CPC分类号： H03F1/26 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03G1/0023

    摘要： An Automatic Gain Control (AGC) module for controlling Noise Figure (NF) and IM characteristics therein is disclosed. The AGC module comprises a plurality of AGC stages. Each AGC stage comprises a differential amplifier circuit, an input signal transistor and a current-steering circuit. Differential amplifier circuits of the plurality of AGC stages receive control signals at their differential inputs and their output is connected to a common load. The input signal transistors of the plurality of AGC stages receive a common input signal and is further coupled to the differential amplifier circuit and the current-steering circuit. The current-steering circuits and the control signals at the differential amplifier circuits control gain of the each AGC stage of the plurality of AGC stage, which is used to control the NF and the IM characteristics.

    摘要翻译： 公开了一种用于控制噪声系数（NF）和IM特性的自动增益控制（AGC）模块。 AGC模块包括多个AGC级。 每个AGC级包括差分放大器电路，输入信号晶体管和电流 - 转向电路。 多个AGC级的差分放大器电路在其差分输入处接收控制信号，并且其输出连接到公共负载。 多个AGC级的输入信号晶体管接收公共输入信号，并且还耦合到差分放大器电路和电流转向电路。 差动放大器电路中的电流导向电路和控制信号控制用于控制NF和IM特性的多个AGC级的每个AGC级的增益。

    REMOVING INTERFERING SIGNALS IN A BROADBAND RADIO FREQUENCY RECEIVER
    3.
    发明申请
    REMOVING INTERFERING SIGNALS IN A BROADBAND RADIO FREQUENCY RECEIVER 失效
    在宽带无线电频率接收机中删除干扰信号

    公开(公告)号：US20080231759A1

    公开(公告)日：2008-09-25

    申请号：US11688522

    申请日：2007-03-20

    申请人： Nick Cowley ,  Sawyer Albert David ,  Mark Mudd ,  Richard Goldman ,  Colin Perry ,  Ruiyan Zhao

    发明人： Nick Cowley ,  Sawyer Albert David ,  Mark Mudd ,  Richard Goldman ,  Colin Perry ,  Ruiyan Zhao

    IPC分类号： H03H7/01

    CPC分类号： H04B1/0067 ,  H03H7/0161 ,  H04B1/1036 ,  H04N5/4401 ,  H04N21/42607

    摘要： Various embodiments are directed to removing interfering signals in a broadband radio frequency (RF) receiver by implementing a silicon tuner arranged to replicate high quality factor (Q) performance without the advantages of using high Q components available for module tuners. In one or more embodiments, tuned filter elements within a broadband silicon tuner are reused to maximize the attenuation of unwanted signals while minimizing induced undesirable channel ripple. In various implementations, a number of tuned passive inductor/capacitor filter elements are combined as required such that filter elements for an unused frequency band are reconfigured to provide attenuation of and enhanced immunity to unwanted signals. Other embodiments are described and claimed.

    摘要翻译： 各种实施例旨在通过实施布置成复制高质量因子（Q）性能的硅调谐器而不使用可用于模块调谐器的高Q分量的优点来去除宽带射频（RF）接收机中的干扰信号。 在一个或多个实施例中，宽带硅调谐器内的调谐滤波器元件被重新使用以最大化不需要的信号的衰减，同时最小化诱导的不期望的信道纹波。 在各种实施方案中，根据需要组合多个调谐的无源电感器/电容器滤波器元件，使得针对未使用频带的滤波器元件被重新配置以提供衰减并增强对不想要的信号的抗扰性。 描述和要求保护其他实施例。

    Removing interfering signals in a broadband radio frequency receiver
    4.
    发明授权
    Removing interfering signals in a broadband radio frequency receiver 失效
    去除宽带射频接收机中的干扰信号

    公开(公告)号：US07672653B2

    公开(公告)日：2010-03-02

    申请号：US11688522

    申请日：2007-03-20

    申请人： Nick Cowley ,  Sawyer Albert David ,  Mark Mudd ,  Richard Goldman ,  Colin Perry ,  Ruiyan Zhao

    发明人： Nick Cowley ,  Sawyer Albert David ,  Mark Mudd ,  Richard Goldman ,  Colin Perry ,  Ruiyan Zhao

    IPC分类号： H04B1/06 ,  H04B1/18

    CPC分类号： H04B1/0067 ,  H03H7/0161 ,  H04B1/1036 ,  H04N5/4401 ,  H04N21/42607

    摘要： Various embodiments are directed to removing interfering signals in a broadband radio frequency (RF) receiver by implementing a silicon tuner arranged to replicate high quality factor (Q) performance without the advantages of using high Q components available for module tuners. In one or more embodiments, tuned filter elements within a broadband silicon tuner are reused to maximize the attenuation of unwanted signals while minimizing induced undesirable channel ripple. In various implementations, a number of tuned passive inductor/capacitor filter elements are combined as required such that filter elements for an unused frequency band are reconfigured to provide attenuation of and enhanced immunity to unwanted signals. Other embodiments are described and claimed.

    摘要翻译： 各种实施例旨在通过实施布置成复制高质量因子（Q）性能的硅调谐器而不使用可用于模块调谐器的高Q分量的优点来去除宽带射频（RF）接收机中的干扰信号。 在一个或多个实施例中，宽带硅调谐器内的调谐滤波器元件被重新使用以最大化不需要的信号的衰减，同时最小化诱导的不期望的信道纹波。 在各种实施方案中，根据需要组合多个调谐的无源电感器/电容器滤波器元件，使得针对未使用频带的滤波器元件被重新配置以提供衰减并增强对不想要的信号的抗扰性。 描述和要求保护其他实施例。

    Compound automatic gain control
    5.
    发明申请
    Compound automatic gain control 失效
    复合自动增益控制

    公开(公告)号：US20080001664A1

    公开(公告)日：2008-01-03

    申请号：US11479879

    申请日：2006-06-30

    申请人： Nick Cowley ,  Mark Mudd

    发明人： Nick Cowley ,  Mark Mudd

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45089 ,  H03F2200/451 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45392 ,  H03F2203/45612 ,  H03G3/3036

    摘要： A compound automatic gain control (AGC) circuit includes multiple AGC stages coupled with signal input nodes and signal output nodes in parallel. Each of the AGC stages has separate, individually controllable, control inputs. During gain back off, the AGC stages are backed off in sequence.

    摘要翻译： 复合自动增益控制（AGC）电路包括与信号输入节点和信号输出节点并联耦合的多个AGC级。 每个AGC级具有单独的，可单独控制的控制输入。 在增益恢复期间，AGC级按顺序退回。

    Compound automatic gain control
    6.
    发明授权
    Compound automatic gain control 失效
    复合自动增益控制

    公开(公告)号：US07492222B2

    公开(公告)日：2009-02-17

    申请号：US11479879

    申请日：2006-06-30

    申请人： Nick Cowley ,  Mark Mudd

    发明人： Nick Cowley ,  Mark Mudd

    IPC分类号： H03F3/68

    CPC分类号： H03F3/45089 ,  H03F2200/451 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45392 ,  H03F2203/45612 ,  H03G3/3036

    摘要： A compound automatic gain control (AGC) circuit includes multiple AGC stages coupled with signal input nodes and signal output nodes in parallel. Each of the AGC stages has separate, individually controllable, control inputs. During gain back off, the AGC stages are backed off in sequence.

    摘要翻译： 复合自动增益控制（AGC）电路包括与信号输入节点和信号输出节点并联耦合的多个AGC级。 每个AGC级具有单独的，可单独控制的控制输入。 在增益恢复期间，AGC级按顺序退回。

    Radio frequency amplifier with improved intermodulation performance
    9.
    发明授权
    Radio frequency amplifier with improved intermodulation performance 失效
    射频放大器具有改进的互调性能

    公开(公告)号：US06876843B2

    公开(公告)日：2005-04-05

    申请号：US10056155

    申请日：2002-01-24

    申请人： Arshad Madni ,  Mark Mudd

    发明人： Arshad Madni ,  Mark Mudd

    IPC分类号： H03F3/45 ,  H03G1/00 ,  H04B1/00

    CPC分类号： H03G1/0023 ,  H03F3/45085 ,  H03F2200/294 ,  H03F2200/372

    摘要： A radio frequency amplifier of improved intermodulation performance is provided by connecting first and second transconductance amplifiers in antiphase so that third order intermodulation products cancel each other but the reduction in gain is relatively small. The transconductance stages comprise long tail pairs of transistors provided with tail current sources formed by transistors whose bases are connected to a bias voltage source. The first transistor has an emitter connected via a resistor to ground. The second transistor has an emitter connected via another resistor to the emitter of the first transistor.

    摘要翻译： 通过连接反相中的第一和第二跨导放大器来提供改进的互调性能的射频放大器，使得三阶互调产物相互抵消，但增益的减小相对较小。 跨导级包括提供有由其基极连接到偏置电压源的晶体管形成的尾电流源的长尾对晶体管。 第一晶体管具有经由电阻器接地的发射极。 第二晶体管具有经由另一个电阻器连接到第一晶体管的发射极的发射极。