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    Adaptive filtering of blocker signals in demodulators
    5.
    发明授权
    Adaptive filtering of blocker signals in demodulators 有权
    解调器中阻塞信号的自适应滤波

    公开(公告)号：US08610495B2

    公开(公告)日：2013-12-17

    申请号：US13328388

    申请日：2011-12-16

    申请人： Umut Basaran ,  Ashkan Naeini

    发明人： Umut Basaran ,  Ashkan Naeini

    IPC分类号： H03D1/06 ,  H04B1/10

    CPC分类号： H03F1/086 ,  H03F1/34 ,  H03F3/45183 ,  H03F3/45188 ,  H03F3/45475 ,  H03F2203/45138 ,  H03F2203/45521 ,  H03F2203/45526 ,  H03F2203/45534 ,  H03H11/0422

    摘要： Some embodiments of the invention relate a transimpedance amplifier circuit having a negative feedback network that provides additional filtering of an out-of-band transmitted signal is provided herein. In one embodiment, the transimpedance amplifier circuit has a first pole, transimpedance amplifier having a multi-stage operational amplifier with an input terminal and an output terminal. An RC feedback network extends from the output terminal to the input terminal. A negative feedback network, extending from an internal node of the multi-stage operational amplifier to an input terminal of the single pole, transimpedance amplifier provides a negative feedback signal with an amplitude having an opposite polarity as the out-of-band transmitted signal. The negative feedback signal suppresses the out-of-band-transmitted signals within the demodulator circuit, thereby improving linearity of the transimpedance amplifier circuit.

    摘要翻译： 本发明的一些实施例涉及具有负反馈网络的跨阻抗放大器电路，其提供对带外发射信号的附加滤波。 在一个实施例中，跨阻放大器电路具有具有输入端和输出端的多级运算放大器的第一极，跨阻放大器。 RC反馈网络从输出端子延伸到输入端子。 从多级运算放大器的内部节点延伸到单极跨阻放大器的输入端的负反馈网络提供具有与带外发射信号相反极性的振幅的负反馈信号。 负反馈信号抑制解调器电路内的带外传输信号，从而提高跨阻放大器电路的线性度。

    Dual Mode Receiver with RF Splitter Using Programmable Passive Components
    6.
    发明申请
    Dual Mode Receiver with RF Splitter Using Programmable Passive Components 有权
    具有RF分离器的双模式接收器，采用可编程无源元件

    公开(公告)号：US20130316671A1

    公开(公告)日：2013-11-28

    申请号：US13477519

    申请日：2012-05-22

    申请人： Herbert Stockinger ,  Umut Basaran ,  Josef Schmal ,  Ashkan Naeini

    发明人： Herbert Stockinger ,  Umut Basaran ,  Josef Schmal ,  Ashkan Naeini

    IPC分类号： H04B1/18

    CPC分类号： H03F3/45475 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45384 ,  H04B1/18

    摘要： One embodiment of the present invention relates to a dual mode receiver that includes an RF splitter configured to operate in two modes, wherein in a first mode a single low noise amplifier is active to receive an RF input signal, and in a second mode two low noise amplifiers are active to receive the RF input signal. The receiver further includes a programmable degeneration component operably coupled to the RF splitter, and configured to provide a first performance characteristic in the first mode, and a second, different performance characteristic in the second mode, wherein the first and second performance characteristics influence an input impedance of the RF splitter to be substantially the same in the first and second modes.

    摘要翻译： 本发明的一个实施例涉及一种双模式接收器，其包括被配置为以两种模式操作的RF分离器，其中在第一模式中，单个低噪声放大器用于接收RF输入信号，并且在第二模式中为两个低 噪声放大器有效以接收RF输入信号。 所述接收机还包括可操作地耦合到所述RF分离器并且被配置为在所述第一模式中提供第一性能特性的可编程退化组件和所述第二模式中的第二不同性能特性，其中所述第一和第二性能特征影响输入 RF分离器的阻抗在第一和第二模式中基本相同。

    Adaptive Filtering of Blocker Signals in Demodulators
    7.
    发明申请
    Adaptive Filtering of Blocker Signals in Demodulators 有权
    解调器中阻塞信号的自适应滤波

    公开(公告)号：US20130154728A1

    公开(公告)日：2013-06-20

    申请号：US13328388

    申请日：2011-12-16

    申请人： Umut Basaran ,  Ashkan Naeini

    发明人： Umut Basaran ,  Ashkan Naeini

    IPC分类号： H03D1/00 ,  H03F1/34 ,  H03F3/45

    CPC分类号： H03F1/086 ,  H03F1/34 ,  H03F3/45183 ,  H03F3/45188 ,  H03F3/45475 ,  H03F2203/45138 ,  H03F2203/45521 ,  H03F2203/45526 ,  H03F2203/45534 ,  H03H11/0422

    摘要： Some embodiments of the invention relate a transimpedance amplifier circuit having a negative feedback network that provides additional filtering of an out-of-band transmitted signal is provided herein. In one embodiment, the transimpedance amplifier circuit has a first pole, transimpedance amplifier having a multi-stage operational amplifier with an input terminal and an output terminal. An RC feedback network extends from the output terminal to the input terminal. A negative feedback network, extending from an internal node of the multi-stage operational amplifier to an input terminal of the single pole, transimpedance amplifier provides a negative feedback signal with an amplitude having an opposite polarity as the out-of-band transmitted signal. The negative feedback signal suppresses the out-of-band-transmitted signals within the demodulator circuit, thereby improving linearity of the transimpedance amplifier circuit.

    摘要翻译： 本发明的一些实施例涉及具有负反馈网络的跨阻抗放大器电路，其提供对带外发射信号的附加滤波。 在一个实施例中，跨阻放大器电路具有具有输入端和输出端的多级运算放大器的第一极，跨阻放大器。 RC反馈网络从输出端子延伸到输入端子。 从多级运算放大器的内部节点延伸到单极跨阻放大器的输入端的负反馈网络提供具有与带外发射信号相反极性的振幅的负反馈信号。 负反馈信号抑制解调器电路内的带外传输信号，从而提高跨阻放大器电路的线性度。

    Dual mode receiver with RF splitter using programmable passive components
    8.
    发明授权
    Dual mode receiver with RF splitter using programmable passive components 有权
    具有RF分离器的双模接收器，采用可编程无源元件

    公开(公告)号：US09219452B2

    公开(公告)日：2015-12-22

    申请号：US13477519

    申请日：2012-05-22

    申请人： Herbert Stockinger ,  Umut Basaran ,  Josef Schmal ,  Ashkan Naeini

    发明人： Herbert Stockinger ,  Umut Basaran ,  Josef Schmal ,  Ashkan Naeini

    IPC分类号： H04B1/16 ,  H03F3/45 ,  H04B1/18

    CPC分类号： H03F3/45475 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45384 ,  H04B1/18

    摘要： One embodiment of the present invention relates to a dual mode receiver that includes an RF splitter configured to operate in two modes, wherein in a first mode a single low noise amplifier is active to receive an RF input signal, and in a second mode two low noise amplifiers are active to receive the RF input signal. The receiver further includes a programmable degeneration component operably coupled to the RF splitter, and configured to provide a first performance characteristic in the first mode, and a second, different performance characteristic in the second mode, wherein the first and second performance characteristics influence an input impedance of the RF splitter to be substantially the same in the first and second modes.

    摘要翻译： 本发明的一个实施例涉及一种双模式接收器，其包括被配置为以两种模式操作的RF分离器，其中在第一模式中，单个低噪声放大器用于接收RF输入信号，并且在第二模式中为两个低 噪声放大器有效以接收RF输入信号。 所述接收机还包括可操作地耦合到所述RF分离器并且被配置为在所述第一模式中提供第一性能特性的可编程退化组件和所述第二模式中的第二不同性能特性，其中所述第一和第二性能特征影响输入 RF分离器的阻抗在第一和第二模式中基本相同。