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11. 发明申请

US20050031064A1 System and method for canceling interference in a communication system 有权
标题翻译：消除通信系统干扰的系统和方法
公开(公告)号：US20050031064A1
公开(公告)日：2005-02-10
申请号：US10940136
申请日：2004-09-14
申请人： Thomas Kolze , Bruce Currivan , Jonathan Min , Eric Ojard , James Thi , Daniel Howard
发明人： Thomas Kolze , Bruce Currivan , Jonathan Min , Eric Ojard , James Thi , Daniel Howard
IPC分类号： H04B1/10 , H04B1/12 , H04L1/00 , H04L25/03
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。

12. 发明授权

US07978795B2 Fast automatic gain control 有权
标题翻译：快速自动增益控制
公开(公告)号：US07978795B2
公开(公告)日：2011-07-12
申请号：US11945288
申请日：2007-11-27
申请人： Bruce Currivan , Loke Tan , Thomas Kolze
发明人： Bruce Currivan , Loke Tan , Thomas Kolze
IPC分类号： H04L27/08
CPC分类号： H04L27/22 , H04L25/03038 , H04L25/03057 , H04L25/061 , H04L2025/03401 , H04L2025/0342 , H04L2025/03687
摘要： An apparatus comprising a slicer configured to produce a symbol decision value and a symbol error value utilizing, at least in part, a slicer input signal; and an automatic gain controller configured to facilitate the automatic control of a gain applied to the slicer input signal by producing a gain control signal, the automatic gain controller comprising a decision-directed amplitude error detector configured to utilize, at least in part, the symbol decision value and the symbol error value to produce an amplitude error signal, and a loop filter configured to utilize the amplitude error signal to produce the gain control signal.
摘要翻译：一种包括限幅器的装置，其被配置为至少部分地利用限幅器输入信号产生符号判定值和符号误差值; 以及自动增益控制器，其被配置为通过产生增益控制信号来促进对施加到限幅器输入信号的增益的自动控制，所述自动增益控制器包括判决导向的幅度误差检测器，其被配置为至少部分地使用符号决定值和符号误差值，以产生振幅误差信号;以及环路滤波器，其被配置为利用所述振幅误差信号来产生所述增益控制信号。

13. 发明申请

US20090135896A1 FAST AUTOMATIC GAIN CONTROL 有权
标题翻译：快速自动增益控制
公开(公告)号：US20090135896A1
公开(公告)日：2009-05-28
申请号：US11945288
申请日：2007-11-27
申请人： Bruce Currivan , Loke Tan , Thomas Kolze
发明人： Bruce Currivan , Loke Tan , Thomas Kolze
IPC分类号： H04L27/08 , H03H7/30 , H03K5/159
CPC分类号： H04L27/22 , H04L25/03038 , H04L25/03057 , H04L25/061 , H04L2025/03401 , H04L2025/0342 , H04L2025/03687
摘要： An apparatus comprising a slicer configured to produce a symbol decision value and a symbol error value utilizing, at least in part, a slicer input signal; and an automatic gain controller configured to facilitate the automatic control of a gain applied to the slicer input signal by producing a gain control signal, the automatic gain controller comprising a decision-directed amplitude error detector configured to utilize, at least in part, the symbol decision value and the symbol error value to produce an amplitude error signal, and a loop filter configured to utilize the amplitude error signal to produce the gain control signal.
摘要翻译：一种包括限幅器的装置，其被配置为至少部分地利用限幅器输入信号产生符号判定值和符号误差值; 以及自动增益控制器，其被配置为通过产生增益控制信号来促进对施加到限幅器输入信号的增益的自动控制，所述自动增益控制器包括判决导向的幅度误差检测器，其被配置为至少部分地使用符号决定值和符号误差值，以产生振幅误差信号;以及环路滤波器，其被配置为利用所述振幅误差信号来产生所述增益控制信号。

14. 发明授权

US07308050B2 Detection and mitigation of temporary impairments in a communications channel 有权
标题翻译：检测和缓解通信信道中的临时损伤
公开(公告)号：US07308050B2
公开(公告)日：2007-12-11
申请号：US10000415
申请日：2001-11-02
申请人： Thomas Kolze , Bruce Currivan , Jonathan Min
发明人： Thomas Kolze , Bruce Currivan , Jonathan Min
IPC分类号： H04L27/01
CPC分类号： H04L1/005 , H04B1/71 , H04B1/7102 , H04B1/7103 , H04B1/71055 , H04B1/71072 , H04B2201/709709 , H04L1/0009 , H04L1/0045 , H04L1/0057 , H04N21/6168
摘要： Systems and methods are disclosed for detecting temporary high level impairments, such as noise or interference, for example, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic impairments. In one embodiment, the method not only performs dynamic characterization of channel fidelity against impairments, but also uses this dynamic characterization of the channel fidelity to adapt the receiver processing and to affect an improvement in the performance of the receiver. For example, in this embodiment, the method increases the accuracy of the estimation of the transmitted information, or similarly, increases the probability of making the correct estimates of the transmitted information, even in the presence of temporary severe levels of impairment. The channel fidelity history may also be stored and catalogued for use in, for example, future optimization of the transmit waveform.
摘要翻译：公开了用于检测临时高级损伤（例如噪声或干扰）的系统和方法，例如在通信信道中，并且随后减轻动态损伤的有害影响。在一个实施例中，该方法不仅执行对损伤的信道保真度的动态表征，而且还使用信道保真度的动态表征来适应接收机处理并影响接收机性能的改善。例如，在本实施例中，该方法提高了所发送信息的估计的准确性，或者类似地，即使存在临时严重的损伤水平，也增加了发送信息的正确估计的可能性。信道保真度历史也可以存储和编目，以用于例如发射波形的未来优化。

15. 发明申请

US20060039459A1 System and method for linear distortion estimation by way of equalizer coefficients 有权
公开(公告)号：US20060039459A1
公开(公告)日：2006-02-23
申请号：US11046783
申请日：2005-02-01
申请人： Thomas Kolze , Bruce Currivan
发明人： Thomas Kolze , Bruce Currivan
IPC分类号： H03H7/30 , H03D1/04
CPC分类号： H04L25/03019 , H04B1/1027 , H04B1/123 , H04L25/022 , H04L25/03343 , H04L2025/03617
摘要： Provided is a method and system for estimating distortion in a communications channel including an adaptive equalizer. The method includes determining one or more adaptive filter coefficients associated with a signal passed through the equalizer. The method also includes estimating un-equalized channel distortion based upon the determined adaptive filter coefficients.

16. 发明申请

US20050141460A9 Cancellation of interference in a communication system with application to S-CDMA 有权
标题翻译：消除应用于S-CDMA的通信系统中的干扰
公开(公告)号：US20050141460A9
公开(公告)日：2005-06-30
申请号：US10142189
申请日：2002-05-08
申请人： Bruce Currivan , Thomas Kolze , Gottfried Ungerboeck , Nabil Yousef
发明人： Bruce Currivan , Thomas Kolze , Gottfried Ungerboeck , Nabil Yousef
IPC分类号： H04B1/707 , H04B7/216 , H04J13/00 , H04J13/16
CPC分类号： H04B7/216 , H04B1/71 , H04B1/7102 , H04B1/7105 , H04B1/7107 , H04J13/0003 , H04J13/16
摘要： Cancellation of interference in a communication system with application to S-CDMA. A relatively straight-forward implemented, and computationally efficient approach of selecting a predetermined number of unused codes is used to perform weighted linear combination selectively with each of the input spread signals in a multiple access communication system. If desired, the predetermined number of unused codes is always the same in each implementation. Alternatively, the predetermined number of unused codes are selected from within a reordered code matrix using knowledge that is shared between the two ends of a communication system, such as between the CMs and a CMTS. While the context of an S-CDMA communication system having CMs and a CMTS is used, the solution is generally applicable to any communication system that seeks to cancel narrowband interference. Several embodiments are also described that show the generic applicability of the solution across a wide variety of systems.
摘要翻译：消除应用于S-CDMA的通信系统中的干扰。使用选择预定数量的未使用代码的相对简单的实现和计算上有效的方法来在多址通信系统中选择性地与每个输入扩展信号执行加权线性组合。如果需要，在每个实现中，预定数量的未使用代码总是相同的。或者，使用在诸如CM和CMTS之间的通信系统的两端之间共享的知识，从重排序代码矩阵中选择预定数量的未使用代码。虽然使用具有CM和CMTS的S-CDMA通信系统的上下文，但该解决方案通常适用于试图取消窄带干扰的任何通信系统。还描述了几个实施例，其显示了解决方案在各种系统上的通用适用性。

17. 发明授权

US08498365B2 Detection and mitigation of temporary impairments in a communications channel 有权
公开(公告)号：US08498365B2
公开(公告)日：2013-07-30
申请号：US13306400
申请日：2011-11-29
申请人： Thomas Kolze , Bruce Currivan , Jonathan Min
发明人： Thomas Kolze , Bruce Currivan , Jonathan Min
IPC分类号： H04L27/06
CPC分类号： H04L1/005 , H04B1/71 , H04B1/7102 , H04B1/7103 , H04B1/71055 , H04B1/71072 , H04B2201/709709 , H04L1/0009 , H04L1/0045 , H04L1/0057 , H04N21/6168
摘要： Systems and methods are disclosed for detecting temporary high level impairments, such as noise or interference, for example, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic impairments. In one embodiment, the method not only performs dynamic characterization of channel fidelity against impairments, but also uses this dynamic characterization of the channel fidelity to adapt the receiver processing and to affect an improvement in the performance of the receiver. For example, in this embodiment, the method increases the accuracy of the estimation of the transmitted information, or similarly, increases the probability of making the correct estimates of the transmitted information, even in the presence of temporary severe levels of impairment. The channel fidelity history may also be stored and catalogued for use in, for example, future optimization of the transmit waveform.

18. 发明授权

US08457040B2 Method and apparatus for maintaining synchronization in a communication system 有权
标题翻译：用于在通信系统中维持同步的方法和装置
公开(公告)号：US08457040B2
公开(公告)日：2013-06-04
申请号：US10809685
申请日：2004-03-26
申请人： Thomas Kolze , Bruce Currivan , Niki Pantelias
发明人： Thomas Kolze , Bruce Currivan , Niki Pantelias
IPC分类号： H04B7/212
CPC分类号： H04L7/048 , H04J3/0638 , H04J3/0688 , H04L1/004
摘要： A central entity and/or a remote device in a communication system are designed to address the problem of maintaining upstream synchronization in the remote device after loss of the downstream signal. One issue of particular importance is maintaining upstream transmissions from the remote device in an S-CDMA (or perhaps S-TDMA) mode that do not degrade performance of the communication system via poor upstream timing or a need for re-ranging. By providing novel functionality at the central entity for synchronizing first and second downstream signals and/or by providing novel functionality at the remote device for determining a symbol clock offset between a first terminated downstream signal and a second re-acquired downstream signal, embodiments of the present invention facilitate maintenance of synchronization through the loss of the downstream signal, thereby minimizing the need for re-ranging and avoiding poorly timed upstream bursts.
摘要翻译：通信系统中的中央实体和/或远程设备被设计为解决在丢失下行信号之后维护远程设备中的上行同步的问题。一个特别重要的问题是在S-CDMA（或可能的S-TDMA）模式中维护来自远程设备的上行传输，其不会通过差的上行时序或重新测距的需要来降低通信系统的性能。通过在中央实体提供用于同步第一和第二下游信号的新颖功能和/或通过在远程设备处提供新颖的功能来确定第一终止的下行信号和第二重新获得的下行信号之间的符号时钟偏移，本发明便于通过丢失下行信号来维持同步，从而最小化对重新测距的需要，并避免不良定时的上行脉冲串。

19. 发明授权

US08437406B2 Method and system for digital video broadcast for cable (DVB-C2) 有权
标题翻译：电视数字视频广播方法与系统（DVB-C2）
公开(公告)号：US08437406B2
公开(公告)日：2013-05-07
申请号：US12269865
申请日：2008-11-12
申请人： Thomas Kolze , Robbert van der Wal , Bruce Currivan
发明人： Thomas Kolze , Robbert van der Wal , Bruce Currivan
IPC分类号： H04N7/12 , H04N11/02 , H04J3/24 , H03M13/00 , A61F2/48
CPC分类号： H04N21/63 , H04H20/69 , H04H20/78
摘要： Methods and systems for DVB-C2 are disclosed and may include receiving data encoded utilizing variable encoding, variable modulation and outer codes via a physical layer matched to a desired quality of service. An error probability may be determined for said received data and retransmission of portions of said data with error probability above an error threshold may be requested. The variable modulation may include single carrier modulation, orthogonal frequency division modulation, synchronous code division multiple access, and/or from 256 QAM to 2048 QAM or greater. The variable encoding may include forward error correction code, which may include low density parity check code.
摘要翻译：公开了DVB-C2的方法和系统，并且可以包括通过与期望的服务质量匹配的物理层来接收利用可变编码，可变调制和外部码编码的数据。可以针对所述接收的数据确定错误概率，并且可以请求误差概率高于误差阈值的所述数据的部分的重传。可变调制可以包括单载波调制，正交频分调制，同步码分多址，和/或从256QAM到2048QAM或更大。可变编码可以包括前向纠错码，其可以包括低密度奇偶校验码。

20. 发明申请

US20060056461A1 Synchronization of distributed cable modem network components 有权
标题翻译：分布式电缆调制解调器网络组件的同步
公开(公告)号：US20060056461A1
公开(公告)日：2006-03-16
申请号：US11061147
申请日：2005-02-18
申请人： Bruce Currivan , Alexander MacInnis , Thomas Kolze , Richard Prodan
发明人： Bruce Currivan , Alexander MacInnis , Thomas Kolze , Richard Prodan
IPC分类号： H04J3/06
CPC分类号： H04J3/0682
摘要： A distributed cable modem termination system of the present invention includes a downstream transmitter hub, an upstream receiver hub, and a head end that communicatively couples to the downstream transmitter hub and to the upstream receiver hub via a packet data network. The head end and the downstream transmitter hub are operable to synchronize a clock of the downstream transmitter hub with a clock of the head end. Further, the upstream receiver hub and the downstream transmitter hub are operable to synchronize a clock of the upstream receiver hub with the clock of the downstream transmitter hub. Clock synchronization between the upstream receiver hub and the downstream transmitter hub are performed using ranging operations supported by at least one cable modem communicatively coupled to both the upstream receiver hub and the downstream transmitter hub via cable modem network plant.
摘要翻译：本发明的分布式电缆调制解调器终端系统包括下行发射机集线器，上游接收集线器和头端，其通过分组数据网络通信耦合到下游发射机集线器和上游接收集线器。头端和下游发射器集线器可操作以使下游发射器集线器的时钟与头端的时钟同步。此外，上游接收器集线器和下游发射器集线器可操作以将上游接收器集线器的时钟与下游发射器集线器的时钟同步。上游接收器集线器和下游发射器集线器之间的时钟同步使用通过电缆调制解调器网络设备通信地耦合到上游接收器集线器和下游发射机集线器的至少一个电缆调制解调器支持的测距操作来执行。

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