公开(公告)号：US20070061642A1

公开(公告)日：2007-03-15

申请号：US11489538

申请日：2006-07-20

申请人： Bruce Currivan ,  Thomas Kolze ,  Kevin Miller ,  Richard Prodan ,  Jonathan Min

发明人： Bruce Currivan ,  Thomas Kolze ,  Kevin Miller ,  Richard Prodan ,  Jonathan Min

IPC分类号： G01R31/28

CPC分类号： H04B1/69 ,  H04J13/0074

摘要： A system and method are used to provide uncorrelated code hopping in a communications system. A multi-bit linear shift register receives data and clocks the data fifteen times. A word assembler receives the shifted data and outputs a fifteen bit word. A mixer mixes the fifteen bit word with an numerical value of active codes to generate a mixed signal. A divider divides the mixed signal to produce a divided signal. A truncator truncates the divided signal to its seven most significant bits to produce a pseudo random hop number. A code matrix shifter circularly shifts the active codes in a code matrix based on the pseudo random hop number to produce a circularly shifted code. A transmitter transmits the circularly shifted code matrix.

摘要翻译： 系统和方法用于在通信系统中提供不相关的跳码。 多位线性移位寄存器接收数据并对数据进行十五次计时。 字汇编器接收移位数据并输出十五位字。 混频器将十五位字与有效码的数值混合以产生混合信号。 分频器分割混合信号以产生分频信号。 截断器将分割的信号截断为其七个最高有效位以产生伪随机跳数。 码矩阵移位器基于伪随机跳数循环移位代码矩阵中的活动代码，以产生循环移位代码。 发射机发送循环移位码矩阵。

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。

公开(公告)号：US20050097617A1

公开(公告)日：2005-05-05

申请号：US10989209

申请日：2004-11-13

申请人： Bruce Currivan ,  Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

发明人： Bruce Currivan ,  Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

IPC分类号： H04B1/707 ,  H04B7/216 ,  H04J11/00 ,  H04L25/03 ,  H04L25/49 ,  H04L27/34 ,  H04N7/173 ,  H04B7/212 ,  H04N7/16

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

摘要： A cable modem communication system includes a plurality of Cable Modems (CMs), a CM network segment, and a Cable Modem Termination System (CMTS). The CMTS segregates the plurality of CMs into a first group of CMs with which standard registering and ranging operations are performed and a second group of CMs with which attenuated transmission registering and ranging operations are performed. Each CM of the first group of CMs operable to perform registering and ranging operations by transmitting a ranging burst of a first format. Each CM of the second group of CMs operable to perform registering and ranging operations by transmitting a ranging burst of a second format that differs from the ranging burst of the first format. The CMTS may include a rake receiver that receives and demodulates a plurality of multi-path copies of the ranging burst of the second format.

摘要翻译： 电缆调制解调器通信系统包括多个有线调制解调器（CM），CM网络段和有线调制解调器终端系统（CMTS）。 CMTS将多个CM分离成执行标准注册和测距操作的第一组CM，以及执行衰减的传输注册和测距操作的第二组CM。 第一组CM的每个CM可操作以通过发送第一格式的测距突发来执行注册和测距操作。 第二组CM的每个CM可操作以通过发送与第一格式的测距脉冲串不同的第二格式的测距脉冲串来执行注册和测距操作。 CMTS可以包括接收和解调第二格式的测距突发的多个多路径副本的瑞克接收机。

公开(公告)号：US20120134450A1

公开(公告)日：2012-05-31

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.

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。

公开(公告)号：US08068564B2

公开(公告)日：2011-11-29

申请号：US12001316

申请日：2007-12-11

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.

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。

公开(公告)号：US20070201590A1

公开(公告)日：2007-08-30

申请号：US11789764

申请日：2007-04-24

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

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。

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。

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。

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.

公开(公告)号：US20080098287A1

公开(公告)日：2008-04-24

申请号：US12001316

申请日：2007-12-11

申请人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

发明人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

IPC分类号： G06F11/08 ,  H04L27/00

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。