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    Signal processing under attenuated transmission conditions
    4.
    发明授权
    Signal processing under attenuated transmission conditions 有权
    衰减传输条件下的信号处理

    公开(公告)号：US07529289B2

    公开(公告)日：2009-05-05

    申请号：US10427593

    申请日：2003-05-01

    申请人： Bruce J. Currivan ,  Thomas J. Kolze ,  Daniel H. Howard ,  Gottfried Ungerboeck

    发明人： Bruce J. Currivan ,  Thomas J. Kolze ,  Daniel H. Howard ,  Gottfried Ungerboeck

    IPC分类号： H04B1/707 ,  H04B1/38 ,  H04L27/28

    CPC分类号： H04L27/3411 ,  H04B1/71 ,  H04B1/7107 ,  H04B7/216 ,  H04L25/03038 ,  H04L25/03343 ,  H04L25/49 ,  H04L27/3405 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04N7/17309 ,  H04N21/42676

    摘要： Signal processing under attenuated transmission conditions. Within an orthogonal signal space, the number of orthogonal signals that are used to transmit information from a transmitter to a receiver is reduced and the transmitted power of each of the now remaining orthogonal signals is modified; this may involve increasing the power of all of the remaining orthogonal signals equally or alternatively modifying them individually. The same modulation used before the reduction may also be used afterwards; within communication systems having multiple transmitter-receiver paths, this will ensure that the communication system's throughput and efficiency will remain unchanged even when one (or more) transmitter-receiver paths are highly attenuated. In addition, robust mode operation is provided for ranging and registering of transmitter devices when entering the communication system. In addition, the unused orthogonal signals may be employed to support interference cancellation of those orthogonal signals that are used to transmit information.

    摘要翻译： 衰减传输条件下的信号处理。 在正交信号空间内，减少了用于从发射机向接收机发送信息的正交信号的数量，并且修改了现在剩余的正交信号中的每一个的发射功率; 这可能涉及增加所有剩余的正交信号的功率，或者可以分别修改它们。 在还原之前使用的相同调制也可以随后使用; 在具有多个发射机 - 接收机路径的通信系统内，即使当一个（或多个）发射机 - 接收机路径被高度衰减时，这将确保通信系统的吞吐量和效率将保持不变。 另外，提供鲁棒模式操作，用于在进入通信系统时测距和注册发射机设备。 此外，可以采用未使用的正交信号来支持用于发送信息的那些正交信号的干扰消除。

    System and method for canceling interference in a communication system
    6.
    发明授权
    System and method for canceling interference in a communication system 有权
    消除通信系统干扰的系统和方法

    公开(公告)号：US08279987B2

    公开(公告)日：2012-10-02

    申请号：US13026608

    申请日：2011-02-14

    申请人： Thomas J. Kolze ,  Bruce J. Currivan ,  Jonathan S. Min ,  Eric J. Ojard ,  James Chi Thi ,  Daniel H. Howard

    发明人： Thomas J. Kolze ,  Bruce J. Currivan ,  Jonathan S. Min ,  Eric J. Ojard ,  James Chi Thi ,  Daniel H. Howard

    IPC分类号： H04B1/10

    CPC分类号： H04B1/1036 ,  H04B1/1027 ,  H04B1/123 ,  H04L1/0001 ,  H04L25/03006

    摘要： A filter settings generation operation includes sampling a communication channel to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the communication channel is filtered using the filter settings when the signal of interest is present on the communication channel. In modifying the spectral characterization, pluralities of spectral characteristics of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain. One particular spectral modification that is performed is raising of the noise floor of the spectral characterization to meet a budgeted signal-to-noise ratio. Other spectral modifications include modifying spectral components corresponding to an expected interfering signal. In modifying these spectral characterizations, spectral components corresponding to a plurality of expected interfering signals may be modified.

    摘要翻译： 滤波器设置生成操作包括对通信信道进行采样以产生采样信号。 采样信号在感兴趣的频带上进行频谱表征，以产生采样信号的频谱表征。 该光谱特性可能不包括感兴趣的信号。 然后修改光谱表征以产生修改的光谱表征。 然后基于修改的光谱表征生成滤波器设置。 最后，当感兴趣的信号存在于通信信道上时，使用滤波器设置对通信信道进行滤波。 在修改光谱表征时，光谱特性的多个光谱特征被独立地修改以产生修改的光谱表征。 频谱表征的修改可以在频域和/或时域中执行。 执行的一个特定频谱修改是提高频谱表征的本底噪声以满足预算的信噪比。 其他频谱修改包括修改对应于预期干扰信号的频谱分量。 在修改这些频谱表征时，可以修改对应于多个预期干扰信号的频谱分量。

    System and method for canceling interference in a communication system
    7.
    发明授权
    System and method for canceling interference in a communication system 有权
    消除通信系统干扰的系统和方法

    公开(公告)号：US07889821B2

    公开(公告)日：2011-02-15

    申请号：US12510099

    申请日：2009-07-27

    申请人： Thomas J. Kolze ,  Bruce J. Currivan ,  Jonathan S. Min ,  Eric J. Ojard ,  James Chi Thi ,  Daniel H. Howard

    发明人： Thomas J. Kolze ,  Bruce J. Currivan ,  Jonathan S. Min ,  Eric J. Ojard ,  James Chi Thi ,  Daniel H. Howard

    IPC分类号： H03D1/04

    CPC分类号： H04B1/1036 ,  H04B1/1027 ,  H04B1/123 ,  H04L1/0001 ,  H04L25/03006

    摘要： A filter settings generation operation includes sampling a communication channel to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the communication channel is filtered using the filter settings when the signal of interest is present on the communication channel. In modifying the spectral characterization, pluralities of spectral characteristics of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain. One particular spectral modification that is performed is raising of the noise floor of the spectral characterization to meet a budgeted signal-to-noise ratio. Other spectral modifications include modifying spectral components corresponding to an expected interfering signal. In modifying these spectral characterizations, spectral components corresponding to a plurality of expected interfering signals may be modified.

    摘要翻译： 滤波器设置生成操作包括对通信信道进行采样以产生采样信号。 采样信号在感兴趣的频带上进行频谱表征，以产生采样信号的频谱表征。 该光谱特性可能不包括感兴趣的信号。 然后修改光谱表征以产生修改的光谱表征。 然后基于修改的光谱表征生成滤波器设置。 最后，当感兴趣的信号存在于通信信道上时，使用滤波器设置对通信信道进行滤波。 在修改光谱表征时，光谱特性的多个光谱特征被独立地修改以产生修改的光谱表征。 频谱表征的修改可以在频域和/或时域中执行。 执行的一个特定频谱修改是提高频谱表征的本底噪声以满足预算的信噪比。 其他频谱修改包括修改对应于预期干扰信号的频谱分量。 在修改这些频谱表征时，可以修改对应于多个预期干扰信号的频谱分量。

    System and method for periodic noise avoidance in data transmission systems
    8.
    发明授权
    System and method for periodic noise avoidance in data transmission systems 有权
    数据传输系统中周期性噪声回避的系统和方法

    公开(公告)号：US07050516B2

    公开(公告)日：2006-05-23

    申请号：US10391555

    申请日：2003-03-20

    申请人： Bruce J. Currivan ,  Thomas J. Kolze ,  Daniel H. Howard ,  Nabil Yousef ,  William Ngai

    发明人： Bruce J. Currivan ,  Thomas J. Kolze ,  Daniel H. Howard ,  Nabil Yousef ,  William Ngai

    IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04

    CPC分类号： H04L1/20 ,  H04L1/0003

    摘要： A system for periodic noise avoidance including a timing discriminator receiving an input signal from a communications channel. The input signal includes data packets and empty slots with periodic noise. The timing discriminator outputs a first error measurement of periodic noise width and a second error measurement of periodic noise position. A first loop filter inputs the first error measurement and outputs a width of the empty slots. A second loop filter inputs the second error measurement and outputs a frequency of the periodic noise. An oscillator inputs the width of the empty slots and the frequency, and outputs an empty slot waveform to the timing discriminator.

    摘要翻译： 一种用于周期性噪声回避的系统，包括接收来自通信信道的输入信号的定时鉴别器。 输入信号包括具有周期性噪声的数据包和空槽。 定时鉴别器输出周期性噪声宽度的第一误差测量值和周期噪声位置的第二误差测量值。 第一个环路滤波器输入第一个误差测量值，并输出空时隙的宽度。 第二个环路滤波器输入第二个误差测量并输出周期性噪声的频率。 振荡器输入空插槽的宽度和频率，并将空槽波形输出到定时鉴频器。

    Signal processing under attenuated transmission conditions
    9.
    发明申请
    Signal processing under attenuated transmission conditions 有权
    衰减传输条件下的信号处理

    公开(公告)号：US20110286473A1

    公开(公告)日：2011-11-24

    申请号：US13118430

    申请日：2011-05-29

    申请人： Bruce J. Currivan ,  Thomas J. Kolze ,  Daniel H. Howard ,  Gottfried Ungerboeck

    发明人： Bruce J. Currivan ,  Thomas J. Kolze ,  Daniel H. Howard ,  Gottfried Ungerboeck

    IPC分类号： H04L27/28 ,  H04J3/00 ,  H04J13/00

    CPC分类号： H04L27/3411 ,  H04B1/71 ,  H04B1/7107 ,  H04B7/216 ,  H04L25/03038 ,  H04L25/03343 ,  H04L25/49 ,  H04L27/3405 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04N7/17309 ,  H04N21/42676

    摘要： Signal processing under attenuated transmission conditions. Within an orthogonal signal space, the number of orthogonal signals that are used to transmit information from a transmitter to a receiver is reduced and the transmitted power of each of the now remaining orthogonal signals is modified; this may involve increasing the power of all of the remaining orthogonal signals equally or alternatively modifying them individually. The same modulation used before the reduction may also be used afterwards; within communication systems having multiple transmitter-receiver paths, this will ensure that the communication system's throughput and efficiency will remain unchanged even when one (or more) transmitter-receiver paths are highly attenuated. In addition, robust mode operation is provided for ranging and registering of transmitter devices when entering the communication system. In addition, the unused orthogonal signals may be employed to support interference cancellation of those orthogonal signals that are used to transmit information.

    摘要翻译： 衰减传输条件下的信号处理。 在正交信号空间内，减少了用于从发射机向接收机发送信息的正交信号的数量，并且修改了现在剩余的正交信号中的每一个的发送功率; 这可能涉及增加所有剩余的正交信号的功率，或者可以分别修改它们。 在还原之前使用的相同调制也可以随后使用; 在具有多个发射机 - 接收机路径的通信系统内，即使当一个（或多个）发射机 - 接收机路径被高度衰减时，这将确保通信系统的吞吐量和效率将保持不变。 另外，提供鲁棒模式操作，用于在进入通信系统时测距和注册发射机设备。 此外，可以采用未使用的正交信号来支持用于发送信息的那些正交信号的干扰消除。