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    Method And System For Improved Cross Polarization Rejection And Tolerating Coupling Between Satellite Signals
    1.
    发明申请
    Method And System For Improved Cross Polarization Rejection And Tolerating Coupling Between Satellite Signals 有权
    卫星信号之间改善交叉极化抑制和容忍耦合的方法和系统

    公开(公告)号：US20140003559A1

    公开(公告)日：2014-01-02

    申请号：US13933865

    申请日：2013-07-02

    申请人： Raja Pullela ,  Glenn Chang ,  Timothy Gallagher

    发明人： Raja Pullela ,  Glenn Chang ,  Timothy Gallagher

    IPC分类号： H04L1/00

    CPC分类号： H04L1/0091 ,  H04H40/90

    摘要： Methods and systems for improved cross polarization rejection and tolerating of coupling between satellite signals may comprise receiving radio frequency (RF) signals on a chip, where the RF signals comprising a desired signal and at least one crosstalk signal. The received RF signals may be down-converted to baseband frequencies, and the down-converted signals are converted to digital signals. Crosstalk may be determined by estimating complex coupling coefficients between the received RF signals utilizing a de-correlation algorithm across a frequency bandwidth comprising the desired and crosstalk signals. The down-converted signals may be low-pass filtered and summed with an output signal from a cancellation filter. The complex coupling coefficients may be determined utilizing the de-correlation algorithm on the summed signals, and may be used to configure the cancellation filter. Crosstalk may be canceled in a receiver path from a cancellation filter receiving low-pass filtered down-converted signals from another path.

    摘要翻译： 用于改进交叉极化抑制和卫星信号之间耦合的容忍的方法和系统可以包括在芯片上接收射频（RF）信号，其中RF信号包括期望的信号和至少一个串扰信号。 所接收的RF信号可以被下变频到基带频率，并且下变频信号被转换成数字信号。 可以通过利用包括期望和串扰信号的频率带宽上的去相关算法来估计接收的RF信号之间的复耦合系数来确定串扰。 下变频信号可以被低通滤波，并与来自消除滤波器的输出信号相加。 复合耦合系数可以利用求和信号上的去相关算法来确定，并且可以用于配置消除滤波器。 从接收来自另一路径的低通滤波的下变频信号的消​​除滤波器的接收机路径中可能会消除串扰。

    Configurable, Highly-Integrated Satellite Receiver
    2.
    发明申请
    Configurable, Highly-Integrated Satellite Receiver 有权
    可配置，高度集成的卫星接收机

    公开(公告)号：US20130230078A1

    公开(公告)日：2013-09-05

    申请号：US13783130

    申请日：2013-03-01

    申请人： Glenn Chang ,  Raja Pullela ,  Madhukar Reddy ,  Timothy Gallagher ,  Shanta Murthy Prem Swaroop ,  Curtis Ling

    发明人： Glenn Chang ,  Raja Pullela ,  Madhukar Reddy ,  Timothy Gallagher ,  Shanta Murthy Prem Swaroop ,  Curtis Ling

    IPC分类号： H04H40/90

    CPC分类号： H04H40/90 ,  H04N21/6143

    摘要： A direct broadcast satellite (DBS) reception assembly may comprise an integrated circuit that is configurable between or among a plurality of configurations based on content requested by client devices served by the DBS reception assembly. In a first configuration, multiple satellite frequency bands may be digitized by the integrated circuit as a single wideband signal. In a second configuration, the satellite frequency bands may be digitized by the integrated circuit as a plurality of separate narrowband signals. The integrated circuit may comprise a plurality of receive paths, each of the receive chains comprising a respective one of a plurality of low noise amplifiers and a plurality of analog-to-digital converters.

    摘要翻译： 直接广播卫星（DBS）接收组件可以包括可以基于由DBS接收组件服务的客户端设备请求的内容在多个配置之间或之间配置的集成电路。 在第一配置中，多个卫星频带可以被集成电路数字化为单个宽带信号。 在第二配置中，卫星频带可以由集成电路数字化为多个单独的窄带信号。 集成电路可以包括多个接收路径，每个接收链包括多个低噪声放大器和多个模数转换器中的相应一个。

    Method and system for improved cross polarization rejection and tolerating coupling between satellite signals
    3.
    发明授权
    Method and system for improved cross polarization rejection and tolerating coupling between satellite signals 有权

    公开(公告)号：US09882679B2

    公开(公告)日：2018-01-30

    申请号：US13933865

    申请日：2013-07-02

    申请人： Raja Pullela ,  Glenn Chang ,  Timothy Gallagher

    发明人： Raja Pullela ,  Glenn Chang ,  Timothy Gallagher

    IPC分类号： H04B1/10 ,  H04L1/00 ,  H04H40/90

    CPC分类号： H04L1/0091 ,  H04H40/90

    摘要： Methods and systems for improved cross polarization rejection and tolerating of coupling between satellite signals may comprise receiving radio frequency (RF) signals on a chip, where the RF signals comprising a desired signal and at least one crosstalk signal. The received RF signals may be down-converted to baseband frequencies, and the down-converted signals are converted to digital signals. Crosstalk may be determined by estimating complex coupling coefficients between the received RF signals utilizing a de-correlation algorithm across a frequency bandwidth comprising the desired and crosstalk signals. The down-converted signals may be low-pass filtered and summed with an output signal from a cancellation filter. The complex coupling coefficients may be determined utilizing the de-correlation algorithm on the summed signals, and may be used to configure the cancellation filter. Crosstalk may be canceled in a receiver path from a cancellation filter receiving low-pass filtered down-converted signals from another path.

    METHOD AND SYSTEM FOR A DISTRIBUTED RECEIVER
    7.
    发明申请
    METHOD AND SYSTEM FOR A DISTRIBUTED RECEIVER 有权
    分布式接收机的方法和系统

    公开(公告)号：US20130201406A1

    公开(公告)日：2013-08-08

    申请号：US13760253

    申请日：2013-02-06

    申请人： Curtis Ling ,  Timothy Gallagher ,  Glenn Chang

    发明人： Curtis Ling ,  Timothy Gallagher ,  Glenn Chang

    IPC分类号： H04H40/90 ,  H04N5/455

    CPC分类号： H04H40/90 ,  H04L1/0048 ,  H04L25/061 ,  H04L25/067 ,  H04L27/38 ,  H04N5/4401 ,  H04N5/455 ,  H04N21/42607

    摘要： A first semiconductor die may comprise an interface circuit and a demodulation circuit. The interface circuit may be operable to receive an externally generated signal and recover decisions of a symbol de-mapper carried in the externally generated signal. The demodulation circuit may be operable to recover one or more transport streams based on the decisions of the symbol de-mapper. The first semiconductor die may comprise circuitry operable to combine a plurality of signals from a plurality of second semiconductor dice, where each of the plurality of signals comprises decisions of a respective one of a plurality of symbol de-mappers.

    摘要翻译： 第一半导体管芯可以包括接口电路和解调电路。 接口电路可以用于接收外部产生的信号并恢复在外部产生的信号中承载的符号解映射器的决定。 解调电路可以用于基于符号解映射器的决定来恢复一个或多个传输流。 第一半导体管芯可以包括可操作以组合来自多个第二半导体管芯的多个信号的电路，其中多个信号中的每个信号包括多个符号解映射器中的相应一个的决定。