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    • 55. 发明授权
    • Channel estimation method operable to cancel a dominant disturber signal from a received signal
    • 信道估计方法,用于从接收信号中消除主要干扰信号
    • US08213492B2
    • 2012-07-03
    • US12400429
    • 2009-03-09
    • Arkady Molev-ShteimanArie HeimanHuaiyu (Hanks) Zeng
    • Arkady Molev-ShteimanArie HeimanHuaiyu (Hanks) Zeng
    • H04B3/46
    • H04L25/03292H04L25/0328
    • A processing module produces improved main channel estimate. This process involves initially estimating the channel impulse response. This result is based on and combined with a known sequences such as that provided by training sequences of the midamble within RF bursts. From this combination, it is possible to produce an estimated signal from a convolution of the channel impulse response and midamble. The estimated signal may be cancelled or subtracted from the received signal to produce a clearer image of the disturber signal. A blind data recovery performed upon the disturber signal. The recovered disturber data may be used as a reference for disturber channel estimation in order to produce a disturber channel impulse response. With the estimated disturber channel impulse response and the recovered disturber data, an estimated disturber signal may be reconstructed and subtracted from the received signal. This allows the cancellation of the estimated disturber signal. Without a clear or dominant disturber signal, a better representation of the main channel impulse response may be produced. This results in more accurate processing of the received RF bursts and improved receiver performance.
    • 处理模块产生改进的主信道估计。 该过程包括初始估计信道脉冲响应。 该结果基于已知的序列,例如由RF阵列内的训练序列提供的已知序列。 从该组合,可以从信道脉冲响应和中间码的卷积产生估计信号。 可以从接收到的信号中消除或减去估计信号,以产生干扰信号的更清晰的图像。 对干扰信号执行盲目数据恢复。 恢复的干扰数据可以用作干扰信道估计的参考,以产生干扰信道脉冲响应。 利用估计的干扰信道脉冲响应和恢复的干扰数据,可以重建估计的干扰信号并从接收信号中减去干扰信号。 这允许取消估计的干扰信号。 没有清晰或主导的干扰信号,可以产生主信道脉冲响应的更好的表示。 这导致对接收到的RF突发的更精确的处理和改进的接收机性能。
    • 57. 发明授权
    • Adaptive interference cancellation algorithm using speech mode dependent thresholds
    • 使用语音模式相关阈值的自适应干扰消除算法
    • US08068539B2
    • 2011-11-29
    • US12893026
    • 2010-09-29
    • Arkady Molev-ShteimanNelson R. SollenbergerHuaiyu (Hanks) Zeng
    • Arkady Molev-ShteimanNelson R. SollenbergerHuaiyu (Hanks) Zeng
    • H03H7/30H04B1/10
    • H04L25/03038H04L25/0224H04L25/0305H04L25/03178H04L2025/03401
    • Adaptive interference cancellation algorithm using speech mode dependent thresholds. A method of processing radio frequency (RF) bursts dependent on a speech mode associated with data contained within the RF burst is presented. Different voice modes, full rate, half rate, and adaptive multi-channel rates each may require different signal to noise ratio (SNR) conditions in order to be successfully processed. To improve the equalization, the SNR associated with the burst is estimated. Based on the SNR or other related conditions, a decision can be made as to whether or not an interference cancellation burst process should be implemented. For example, any one or more of SNR of the signal, a measure of colored noise within the signal, an indication whether the signal being noise limited or interference limited, and a channel profile of the signal may indicate the presence of interference requiring the cancellation of such interference.
    • 使用语音模式相关阈值的自适应干扰消除算法。 呈现依赖于与包含在RF突发内的数据相关联的语音模式的射频(RF)脉冲串的处理方法。 不同的语音模式,全速率,半速率和自适应多信道速率各自可能需要不同的信噪比(SNR)条件才能被成功处理。 为了改善均衡,估计与突发相关联的SNR。 基于SNR或其他相关条件,可以做出是否应该实施干扰消除突发过程的决定。 例如,信号的SNR中的任何一个或多个,信号内的彩色噪声的测量,噪声限制的信号或干扰受限的指示以及信号的信道分布可以指示存在需要消除的干扰 的这种干扰。
    • 59. 发明授权
    • Adaptive interference cancellation algorithm using speech mode dependent thresholds
    • 使用语音模式相关阈值的自适应干扰消除算法
    • US07809096B2
    • 2010-10-05
    • US11150957
    • 2005-06-13
    • Arkady Molev-ShteimanNelson R. SollenbergerHuaiyu (Hanks) Zeng
    • Arkady Molev-ShteimanNelson R. SollenbergerHuaiyu (Hanks) Zeng
    • H04B1/10
    • H04L25/03038H04L25/0224H04L25/0305H04L25/03178H04L2025/03401
    • The present invention provides a method of processing radio frequency (RF) bursts dependent on a speech mode associated with data contained within the RF burst. Different voice modes, full rate, half rate, and adaptive multi-channel rates each may require different signal to noise ratio (SNR) conditions in order to be successfully processed. To improve the equalization of the received RF burst(s), the SNR associated with the burst is estimated. Then based on the SNR or other related conditions (i.e. the presence or absence of colored noise, and the estimated channel profile) a decision can be made as to whether or not an interference cancellation burst process should be implemented. For example, the presence of colored noise may indicate the presence of interference requiring the cancellation of such interference, the channel profile as described by the channel length and other associated properties may help determine when an interference cancellation process should be utilized as well, and if there is insufficient SNR, i.e. the SNR is below the predetermined threshold, all indicate that it may be desirable to implement interference cancellation to improve the processing of the received burst(s).
    • 本发明提供了一种处理与RF数据中包含的数据相关联的语音模式的射频(RF)突发的方法。 不同的语音模式,全速率,半速率和自适应多信道速率各自可能需要不同的信噪比(SNR)条件才能被成功处理。 为了改善所接收的RF突发的均衡,估计与突发相关联的SNR。 然后基于SNR或其他相关条件(即有色噪声的存在或不存在以及估计的信道简档),可以做出关于是否应该实现干扰消除突发处理的决定。 例如,有色噪声的存在可以指示需要消除这种干扰的干扰的存在,由信道长度和其他相关属性描述的信道简档可以帮助确定什么时候还应该使用干扰消除过程,并且如果 SNR不足,即SNR低于预定阈值,都表示可能希望实现干扰消除以改善接收到的突发的处理。
    • 60. 发明授权
    • Method and system for decoding video, voice, and speech data using redundancy
    • 使用冗余解码视频,语音和语音数据的方法和系统
    • US07716565B2
    • 2010-05-11
    • US11189509
    • 2005-07-26
    • Arie HeimanArkady Molev-Shteiman
    • Arie HeimanArkady Molev-Shteiman
    • H03M13/03
    • H04L1/0061H03M13/09H03M13/4115H03M13/4169H04L1/005H04L1/0054
    • A method and system for decoding video, voice, and/or speech data using redundancy and physical constraints are presented. Video, voice, and/or speech bit sequences may be decoded in a multilayer process based on a decoding algorithm and at least one physical constraint. For voice applications, the decoding algorithm may be based on the Viterbi algorithm. At least one estimated bit sequence may be selected by performing searches that start from trellis junctions determined during by the decoding algorithm. The estimated bit sequences may be selected based on corresponding redundancy verification parameters. At least one physical constraint test may be performed on the selected estimated bit sequences to select a decoded output bit sequence.
    • 提出了一种使用冗余和物理约束解码视频,语音和/或语音数据的方法和系统。 可以基于解码算法和至少一个物理约束在多层过程中解码视频,语音和/或语音比特序列。 对于语音应用,解码算法可以基于维特比算法。 可以通过执行从由解码算法确定的网格结开始的搜索来选择至少一个估计的比特序列。 可以基于相应的冗余验证参数来选择估计的比特序列。 可以对所选择的估计比特序列执行至少一个物理约束测试,以选择解码的输出比特序列。