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    Circuit with Q-enhancement cell having feedback loop
    1.
    发明申请
    Circuit with Q-enhancement cell having feedback loop 有权
    具有反馈回路的Q增强单元电路

    公开(公告)号：US20080030279A1

    公开(公告)日：2008-02-07

    申请号：US11590452

    申请日：2006-10-31

    申请人： Adedayo Ojo ,  Arya Behzad

    发明人： Adedayo Ojo ,  Arya Behzad

    IPC分类号： H03F3/191

    CPC分类号： H03F3/45188 ,  H03F1/42 ,  H03F1/56 ,  H03F3/191 ,  H03F2200/451 ,  H03F2200/465 ,  H03F2200/78 ,  H03F2203/45521 ,  H03F2203/45606 ,  H03F2203/45626 ,  H03H11/1213 ,  H03H11/1291

    摘要： According to an example embodiment, an amplitude feedback loop may include an RF amplifier, a detector, a comparator, and a Q-enhancement cell. In an example embodiment, the RF amplifier has an output signal, and the detector has an input coupled to the output signal of the RF amplifier and is configured to detect a level of the output signal of the RF amplifier. The comparator circuit may receive as inputs a reference voltage and the output of the detector. Also, the comparator circuit is configured to output a control signal based on a difference between the reference voltage and the output signal of the power detector. The Q-enhancement cell may be coupled to the RF amplifier and have an input coupled to an output of the comparator circuit. A bias current of the Q-enhancement cell may be adjusted based on the control signal output by the comparator circuit.

    摘要翻译： 根据示例实施例，幅度反馈环路可以包括RF放大器，检测器，比较器和Q增强单元。 在示例实施例中，RF放大器具有输出信号，并且检测器具有耦合到RF放大器的输出信号的输入，并被配置为检测RF放大器的输出信号的电平。 比较器电路可以接收参考电压和检测器的输出作为输入。 此外，比较器电路被配置为基于功率检测器的参考电压和输出信号之间的差来输出控制信号。 Q增强单元可以耦合到RF放大器并且具有耦合到比较器电路的输出的输入。 可以基于由比较器电路输出的控制信号来调整Q增强单元的偏置电流。

    Method and system for processing signals in a high performance receive chain
    3.
    发明授权
    Method and system for processing signals in a high performance receive chain 有权
    在高性能接收链中处理信号的方法和系统

    公开(公告)号：US08374560B2

    公开(公告)日：2013-02-12

    申请号：US12882684

    申请日：2010-09-15

    申请人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

    发明人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

    IPC分类号： H04B1/04

    CPC分类号： H04B1/06 ,  H04B1/0057 ,  H04B1/0082 ,  H04B7/084

    摘要： Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards.

    摘要翻译： 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端中的多个放大器链中的一个或多个相应的一个或多个放大器链中放大多个射频信号，其可以包括 一个或多个共享处理阶段。 多个射频信号可以符合多个射频通信标准，并且可以同时接收。 一个或多个共享处理级可以在多个放大器链中的两个或更多个之间共享。 多个放大器链中的两个或更多个放大器链中的每一个可以可操作以放大符合不同射频通信标准的信号。

    Method and system for processing signals in a high performance receive chain
    5.
    发明授权
    Method and system for processing signals in a high performance receive chain 失效
    在高性能接收链中处理信号的方法和系统

    公开(公告)号：US07840198B2

    公开(公告)日：2010-11-23

    申请号：US11733047

    申请日：2007-04-09

    申请人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

    发明人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

    IPC分类号： H04B1/04

    CPC分类号： H04B1/06 ,  H04B1/0057 ,  H04B1/0082 ,  H04B7/084

    摘要： Aspects of a method and system for processing signals in a high performance receive chain may include amplifying radio frequency signals in amplifier chains in a multistandard radio frequency front-end, comprising one or more shared processing stages, and combining, with substantially equal gain, a number of phase-shifted radio frequency signals of the radio frequency signals into substantially equal-gain-combined radio frequency signals. The substantially equal-gain-combined radio frequency signals may be demodulated to obtain inphase channels and quadrature channels. A number of inphase channels and quadrature channels may be processed in I-channel processing blocks and Q-channel processing blocks to generate an output analog baseband signal. The multistandard radio frequency front-end may be capable of processing Bluetooth® signals and Wireless Local Area Network (WLAN) signals. The amplifier chains may comprise a first amplifier and a second amplifier, where the first amplifier may be shared between Bluetooth® signal processing paths and WLAN signal processing paths.

    摘要翻译： 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端放大放大器链中的射频信号，包括一个或多个共享处理级，并且以基本相等的增益组合 射频信号的相移射频信号的数量变成基本相等增益组合的射频信号。 基本上等增益组合的射频信号可以被解调以获得同相信道和正交信道。 可以在I信道处理块和Q信道处理块中处理多个同相信道和正交信道，以产生输出模拟基带信号。 多标准射频前端可能能够处理蓝牙信号和无线局域网（WLAN）信号。 放大器链可以包括第一放大器和第二放大器，其中第一放大器可以在蓝牙信号处理路径和WLAN信号处理路径之间共享。

    Analog received signal strength indication in an RF transceiver
    6.
    发明申请
    Analog received signal strength indication in an RF transceiver 失效
    RF收发器中的模拟接收信号强度指示

    公开(公告)号：US20070004357A1

    公开(公告)日：2007-01-04

    申请号：US11264392

    申请日：2005-11-01

    申请人： Adedayo Ojo ,  Arya Behzad

    发明人： Adedayo Ojo ,  Arya Behzad

    IPC分类号： H04B17/00 ,  H04B1/28

    CPC分类号： H04B17/318

    摘要： An integrated circuit radio transceiver and method therefor comprises a receiver front end that further includes a plurality of in-phase and quadrature phase receive processing block operable at first and second frequency bands wherein each of the receive processing blocks defines an ingoing signal path and further includes a plurality of filtering and amplification blocks disposed within the corresponding ingoing signal path, a plurality of RSSI blocks coupled to receive an ingoing analog signal from a corresponding plurality of nodes disposed throughout the ingoing signal path, each of the plurality of received signal strength indicator blocks producing a signal strength indication, and wherein a baseband processor is operable to receive a selected signal strength indication and to produce at least one gain setting to at least one amplification block within the in-phase or quadrature phase receive processing blocks. In operation, the baseband processor receive a signal strength indication from each RSSI block to determine a total amount of gain and appropriate gain distribution within the receive signal path.

    摘要翻译： 一种集成电路无线电收发机及其方法包括接收器前端，其还包括在第一和第二频带处可操作的多个同相和正交相位接收处理块，其中每个接收处理块定义入轨信号路径，并且还包括 多个滤波和放大块，布置在相应的加入信号路径内，多个RSSI块被耦合以接收来自设置在整个输入信号路径上的相应多个节点的输入模拟信号，多个接收信号强度指示块 产生信号强度指示，并且其中基带处理器可操作以接收所选择的信号强度指示并且产生至少一个增益设置到同相或正交相位接收处理块内的至少一个放大块。 在操作中，基带处理器从每个RSSI块接收信号强度指示，以确定接收信号路径内的增益总量和合适的增益分布。

    Circuit with Q-enhancement cell having programmable bias current slope
    7.
    发明授权
    Circuit with Q-enhancement cell having programmable bias current slope 有权
    具有可编程偏置电流斜率的Q增强单元电路

    公开(公告)号：US07885629B2

    公开(公告)日：2011-02-08

    申请号：US11510373

    申请日：2006-08-25

    申请人： Adedayo Ojo ,  Arya Behzad

    发明人： Adedayo Ojo ,  Arya Behzad

    IPC分类号： H04B1/10

    CPC分类号： H03H11/44 ,  H03F1/565 ,  H03F3/19 ,  H03F3/45188 ,  H03F3/60 ,  H03F2200/391 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2203/45466 ,  H03F2203/45634 ,  H03F2203/45638 ,  H03F2203/45704

    摘要： Various embodiments are disclosed relating to Q-enhancement cells. According to an example embodiment, a circuit may include an inductor with a quality factor (Q), and a Q-enhancement cell coupled to the inductor. The Q-enhancement cell may include a current source having a variable bias current slope. Stability may, for example, be improved by providing a variable or programmable bias current slope for the Q-enhancement cell. In another example embodiment, a Q-enhancement cell may be used to compensate for Q degradation due to one or more switched capacitors in a circuit. The switched capacitors may be used, for example, for channel or frequency selection for the circuit. In another example embodiment, a Q-enhancement cell may be used to compensate for Q degradation caused by a transmission line.

    摘要翻译： 公开了与Q增强单元相关的各种实施例。 根据示例实施例，电路可以包括具有质量因子（Q）的电感器和耦合到电感器的Q增强单元。 Q增强单元可以包括具有可变偏置电流斜率的电流源。 例如，可以通过为Q增强单元提供可变或可编​​程的偏置电流斜率来改善稳定性。 在另一示例性实施例中，可以使用Q增强单元来补偿由于电路中的一个或多个开关电容器引起的Q劣化。 开关电容器可以用于例如用于电路的通道或频率选择。 在另一个示例实施例中，可以使用Q增强小区来补偿由传输线引起的Q劣化。

    Circuit with Q-enhancement cell having programmable bias current slope
    8.
    发明申请
    Circuit with Q-enhancement cell having programmable bias current slope 有权
    具有可编程偏置电流斜率的Q增强单元电路

    公开(公告)号：US20080032661A1

    公开(公告)日：2008-02-07

    申请号：US11510373

    申请日：2006-08-25

    申请人： Adedayo Ojo ,  Arya Behzad

    发明人： Adedayo Ojo ,  Arya Behzad

    IPC分类号： H04B1/28

    CPC分类号： H03H11/44 ,  H03F1/565 ,  H03F3/19 ,  H03F3/45188 ,  H03F3/60 ,  H03F2200/391 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2203/45466 ,  H03F2203/45634 ,  H03F2203/45638 ,  H03F2203/45704

    摘要： Various embodiments are disclosed relating to Q-enhancement cells. According to an example embodiment, a circuit may include an inductor with a quality factor (Q), and a Q-enhancement cell coupled to the inductor. The Q-enhancement cell may include a current source having a variable bias current slope. Stability may, for example, be improved by providing a variable or programmable bias current slope for the Q-enhancement cell. In another example embodiment, a Q-enhancement cell may be used to compensate for Q degradation due to one or more switched capacitors in a circuit. The switched capacitors may be used, for example, for channel or frequency selection for the circuit. In another example embodiment, a Q-enhancement cell may be used to compensate for Q degradation caused by a transmission line.

    摘要翻译： 公开了与Q增强单元相关的各种实施例。 根据示例实施例，电路可以包括具有质量因子（Q）的电感器和耦合到电感器的Q增强单元。 Q增强单元可以包括具有可变偏置电流斜率的电流源。 例如，可以通过为Q增强单元提供可变或可编​​程的偏置电流斜率来改善稳定性。 在另一示例性实施例中，可以使用Q增强单元来补偿由于电路中的一个或多个开关电容器引起的Q劣化。 开关电容器可以用于例如用于电路的通道或频率选择。 在另一个示例实施例中，可以使用Q增强小区来补偿由传输线引起的Q劣化。

    Method and system for processing signals in a high performance receive chain
    10.
    发明申请
    Method and system for processing signals in a high performance receive chain 有权
    在高性能接收链中处理信号的方法和系统

    公开(公告)号：US20110002257A1

    公开(公告)日：2011-01-06

    申请号：US12882684

    申请日：2010-09-15

    申请人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

    发明人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

    IPC分类号： H04J3/08 ,  H04B7/14

    CPC分类号： H04B1/06 ,  H04B1/0057 ,  H04B1/0082 ,  H04B7/084

    摘要： Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards.

    摘要翻译： 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端中的多个放大器链中的一个或多个相应的一个或多个放大器链中放大多个射频信号，其可以包括 一个或多个共享处理阶段。 多个射频信号可以符合多个射频通信标准，并且可以同时接收。 一个或多个共享处理级可以在多个放大器链中的两个或更多个之间共享。 多个放大器链中的两个或更多个放大器链中的每一个可以可操作以放大符合不同射频通信标准的信号。