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    Diversity receiver
    5.
    发明授权
    Diversity receiver 有权
    分集接收机

    公开(公告)号：US09392547B2

    公开(公告)日：2016-07-12

    申请号：US13014539

    申请日：2011-01-26

    申请人： Seung-Chul Hong ,  Sheng Ye ,  Tienyu Chang ,  Anand K. Anandkumar

    发明人： Seung-Chul Hong ,  Sheng Ye ,  Tienyu Chang ,  Anand K. Anandkumar

    IPC分类号： H04L1/02 ,  H04W52/02 ,  H04B7/08

    CPC分类号： H04W52/0264 ,  H04B7/0871 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/444

    摘要： A diversity receiver includes a first receiving channel and a second receiving channel. The receiver also includes a baseband processor that computes a difference between the received signal strengths of the signals received from the first and second channels, wherein the processor disables the signal received from the second channel if the difference is greater than a first threshold value and a BER associated with the second receiving channel is greater than a BER threshold value, and disables the signal received from the first channel if the difference is less than the negative first threshold value and the bit error rate (BER) associated with the first channel is greater than the BER threshold value. The receiver further includes a bypass circuit coupled to an input of an amplifier and a RSSI circuit that provides a conduction path between the input and a ground when the RSSI circuit detects a blocker signal.

    摘要翻译： 分集接收机包括第一接收信道和第二接收信道。 接收机还包括基带处理器，其计算从第一和第二信道接收的信号的接收信号强度之间的差异，其中如果差值大于第一阈值，则处理器禁用从第二信道接收的信号， 与第二接收信道相关联的BER大于BER阈值，并且如果差小于负第一阈值并且与第一信道相关联的误码率（BER）较大，则禁用从第一信道接收的信号 比BER阈值。 接收器还包括耦合到放大器的输入端的旁路电路和当RSSI电路检测到阻塞信号时在输入和地之间提供导通路径的RSSI电路。

    Channel sensitive power control
    6.
    发明授权
    Channel sensitive power control 有权
    通道敏感功率控制

    公开(公告)号：US08442154B2

    公开(公告)日：2013-05-14

    申请号：US12799378

    申请日：2010-04-23

    申请人： James Qiu ,  Sridhar Ramesh ,  Sheng Ye ,  Curtis Ling

    发明人： James Qiu ,  Sridhar Ramesh ,  Sheng Ye ,  Curtis Ling

    IPC分类号： H03K9/00

    CPC分类号： H04W52/0245 ,  H03G3/20 ,  H04B1/109 ,  H04B17/00 ,  H04L1/20 ,  H04L27/06 ,  H04W88/02 ,  Y02D70/00 ,  Y02D70/40

    摘要： A communication receiver which applies signal processing for quantitatively estimating receive signal factors such as communication channel quality, signal characteristics, and overall system received bit error rate (BER) or packet error rate (PER) and which applies a general algorithm for mapping these estimated factors to control receiver performance and minimize power consumption.

    摘要翻译： 一种通信接收机，其应用信号处理，用于定量估计诸如通信信道质量，信号特征和总体系统接收误比特率（BER）或分组差错率（PER）的接收信号因子，并且其应用用于映射这些估计因子的通用算法 以控制接收机性能并降低功耗。

    Method and apparatus for calibrating the sideband rejection of a receiver
    7.
    发明授权
    Method and apparatus for calibrating the sideband rejection of a receiver 有权
    用于校准接收机的边带拒绝的方法和装置

    公开(公告)号：US07917091B2

    公开(公告)日：2011-03-29

    申请号：US11770596

    申请日：2007-06-28

    申请人： Raymond Montemayor ,  Sheng Ye

    发明人： Raymond Montemayor ,  Sheng Ye

    IPC分类号： H04B1/00

    CPC分类号： H04B1/28 ,  H04B17/0085 ,  H04B17/21

    摘要： Methods and apparatus for calibrating In-phase and Quadrature imbalance within a receiver are described. A calibration process can inject a calibration tone to an RF or IF portion of a receiver. The receiver can frequency translate the tone to distinct I and Q calibration signals. The receiver upconverts the I and Q calibration signals to complementary sidebands or images using distinct and substantially matched upconverters. The complementary sidebands are mixed together to generate an error signal. The receiver determines a phase and amplitude correction based on the error signal.

    摘要翻译： 描述了用于校准接收机内的同相和正交不平衡的方法和装置。 校准过程可以向接收机的RF或IF部分注入校准音。 接收机可以将音调频率转换为不同的I和Q校准信号。 接收机将I和Q校准信号上变频到互补的边带或使用不同且基本上匹配的上变频器的图像。 互补边带混合在一起以产生误差信号。 接收机基于误差信号确定相位和幅度校正。

    Method and Apparatus for Calibrating the Sideband Rejection of a Receiver
    9.
    发明申请
    Method and Apparatus for Calibrating the Sideband Rejection of a Receiver 有权
    用于校准接收器的边带抑制的方法和装置

    公开(公告)号：US20080057899A1

    公开(公告)日：2008-03-06

    申请号：US11770596

    申请日：2007-06-28

    申请人： Raymond Montemayor ,  Sheng Ye

    发明人： Raymond Montemayor ,  Sheng Ye

    IPC分类号： H04B1/06

    CPC分类号： H04B1/28 ,  H04B17/0085 ,  H04B17/21

    摘要： Methods and apparatus for calibrating In-phase and Quadrature imbalance within a receiver are described. A calibration process can inject a calibration tone to an RF or IF portion of a receiver. The receiver can frequency translate the tone to distinct I and Q calibration signals. The receiver upconverts the I and Q calibration signals to complementary sidebands or images using distinct and substantially matched upconverters. The complementary sidebands are mixed together to generate an error signal. The receiver determines a phase and amplitude correction based on the error signal.

    摘要翻译： 描述了用于校准接收机内的同相和正交不平衡的方法和装置。 校准过程可以向接收机的RF或IF部分注入校准音。 接收机可以将音调频率转换为不同的I和Q校准信号。 接收机将I和Q校准信号上变频到互补的边带或使用不同且基本上匹配的上变频器的图像。 互补边带混合在一起以产生误差信号。 接收机基于误差信号确定相位和幅度校正。

    Hybrid receiver architecture using upconversion followed by direct downconversion
    10.
    发明申请
    Hybrid receiver architecture using upconversion followed by direct downconversion 审中-公开
    混合接收机架构使用上转换，然后直接下变频

    公开(公告)号：US20060078069A1

    公开(公告)日：2006-04-13

    申请号：US11248643

    申请日：2005-10-12

    申请人： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

    发明人： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

    IPC分类号： H04L27/06

    CPC分类号： H04B1/28 ,  H03D7/166

    摘要： A receiver configured to selectively receive an RF signal from an operating band having a plurality of RF channels. The receiver is configured to upconvert the desired RF channel to an intermediate frequency (IF) greater than the RF channel frequencies. The upconverted RF channel is downconverted to baseband or a low IF. The receiver can perform channel selection by filtering the baseband or low IF signal. The baseband or low IF signal can be upconverted to a programmable output IF.

    摘要翻译： 一种被配置为从具有多个RF信道的工作频带有选择地接收RF信号的接收机。 接收机被配置为将期望的RF信道上变频到大于RF信道频率的中频（IF）。 上变频的RF信道被下变频到基带或低IF。 接收机可以通过对基带或低IF信号进行滤波来执行信道选择。 基带或低IF信号可以上变频到可编程输出IF。