公开(公告)号：US07701978B2

公开(公告)日：2010-04-20

申请号：US10809893

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： H04J3/06

CPC分类号： H04J3/0638 ,  H04J3/0688 ,  H04L1/004 ,  H04L7/048 ,  H04L12/2801

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. The system maintains upstream transmissions from the remote device in a Synchronous-Code Division Multiple Access (S-CDMA) or perhaps Synchronous-Time Division Multiple Access (S-TDMA) mode that does not degrade performance caused by 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 maintain 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。 系统通过同步码分多址（S-CDMA）或可能的同步时分多址（S-TDMA）模式维护来自远程设备的上行传输，该模式不会因经过差的上行定时或需要而导致性能下降 重新定位 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， 本发明通过下游信号的丢失来维持同步，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。

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。

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：US08369433B2

公开(公告)日：2013-02-05

申请号：US12986772

申请日：2011-01-07

申请人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

发明人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04N5/40 ,  H04L5/06 ,  H04L25/03006 ,  H04L27/36

摘要： Embodiments of a digital up-converter and an N-channel modulator are provided herein. The embodiments of the digital up-converter, in combination with the N-channel modulator, are capable of efficiently filling the spectrum of one or more RF signals with one or more types of information signals. For example, the digital up-converter can fill the spectrum of one or more RF signals with both broadcast and narrowcast video and data signals. In addition, the digital up-converter is capable of flexibly mapping the information signals to one or more channels of the one or more RF signals using a novel, three-level switching architecture.

公开(公告)号：US08743933B2

公开(公告)日：2014-06-03

申请号：US13341651

申请日：2011-12-30

申请人： Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

发明人： Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

IPC分类号： H04B1/38

CPC分类号： H04L5/1446 ,  H04L12/2801

摘要： Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.

摘要翻译： 实施例提供了在将来的有线调制解调器网络中降低功率利用（在单个电缆调制解调器或整个网络中）的解决方案。 具体地，实施例通过在电缆调制解调器中分配上行频带和/或传输调制方案，同时考虑各个上行电缆调制解调器传输所经历的电缆损耗，寻求降低各个电缆调制解调器和整个网络的功率利用率。 根据实施例，提供频谱和调制方案分配技术以优化功率利用并且通过电缆调制解调器实现较低的上行传输功率，同时在前端使用较低容量的调制来维持接收信号的相似信号强度或具有降低的SNR要求的较低信号强度。

公开(公告)号：US20120269242A1

公开(公告)日：2012-10-25

申请号：US13341651

申请日：2011-12-30

申请人： Richard PRODAN ,  Niki Pantelias ,  Thomas Kolze

发明人： Richard PRODAN ,  Niki Pantelias ,  Thomas Kolze

IPC分类号： H04B1/38

CPC分类号： H04L5/1446 ,  H04L12/2801

摘要： Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.

摘要翻译： 实施例提供了在将来的有线调制解调器网络中降低功率利用（在单个电缆调制解调器或整个网络中）的解决方案。 具体地，实施例通过在电缆调制解调器中分配上行频带和/或传输调制方案，同时考虑各个上行电缆调制解调器传输所经历的电缆损耗，寻求降低各个电缆调制解调器和整个网络的功率利用率。 根据实施例，提供频谱和调制方案分配技术以优化功率利用并且通过电缆调制解调器实现较低的上行传输功率，同时在前端使用较低容量的调制来维持接收信号的相似信号强度或具有降低的SNR要求的较低信号强度。

公开(公告)号：US20110170632A1

公开(公告)日：2011-07-14

申请号：US12986772

申请日：2011-01-07

申请人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

发明人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

IPC分类号： H04L27/36 ,  H04L25/03

CPC分类号： H04N5/40 ,  H04L5/06 ,  H04L25/03006 ,  H04L27/36

摘要： Embodiments of a digital up-converter and an N-channel modulator are provided herein. The embodiments of the digital up-converter, in combination with the N-channel modulator, are capable of efficiently filling the spectrum of one or more RF signals with one or more types of information signals. For example, the digital up-converter can fill the spectrum of one or more RF signals with both broadcast and narrowcast video and data signals. In addition, the digital up-converter is capable of flexibly mapping the information signals to one or more channels of the one or more RF signals using a novel, three-level switching architecture.

摘要翻译： 本文提供数字上变频器和N沟道调制器的实施例。 数字上变频器与N信道调制器结合的实施例能够利用一种或多种类型的信息信号有效地填充一个或多个RF信号的频谱。 例如，数字上变频器可以用广播和窄视频和数据信号来填充一个或多个RF信号的频谱。 此外，数字上变频器能够使用新颖的三电平交换架构将信息信号灵活地映射到一个或多个RF信号的一个或多个信道。

公开(公告)号：US20050163196A1

公开(公告)日：2005-07-28

申请号：US11089139

申请日：2005-03-24

申请人： Bruce Currivan ,  Nabil Yousef ,  Thomas Kolze ,  Gottfried Ungerboeck

发明人： Bruce Currivan ,  Nabil Yousef ,  Thomas Kolze ,  Gottfried Ungerboeck

IPC分类号： H04B1/707 ,  H04B7/216 ,  H04L25/03 ,  H04L25/49 ,  H04L27/34

CPC分类号： H04B7/216 ,  H04B1/71 ,  H04B1/7107 ,  H04J13/0003 ,  H04J13/16 ,  H04L25/03038 ,  H04L25/03343 ,  H04L25/49 ,  H04L27/3405 ,  H04L2025/03375 ,  H04L2025/03477

摘要： A communication system performs burst noise cancellation. A transmitter produces and transmits a spread signal that comprises at least one known-value symbol spread by a plurality of non data-carrying orthogonal codes and data symbols spread by at least one data-carrying orthogonal code. The transmitter transmits the spread signal across a communication link that introduces burst noise. A burst noise detector determines burst noise affected chips of the orthogonal codes. A weight computation functional block calculates a plurality of complex-valued combining weights based upon the burst noise affected chips. A vector de-spreader and a linear combiner operate in combination to use the plurality of non data-carrying orthogonal codes, the at least one data-carrying orthogonal code, and the plurality of complex-valued combining weights to de-spread the received spread signal to produce the data symbols with the burst noise substantially removed.

摘要翻译： 通信系统执行突发噪声消除。 发射机产生并发射扩展信号，该扩展信号包括由多个非数据携带正交码扩展的至少一个已知值符号和由至少一个携带数据的正交码扩展的数据符号。 发射机通过引入突发噪声的通信链路发送扩展信号。 突发噪声检测器确定正交码的突发噪声影响码片。 权重计算功能块基于突发噪声影响的码片计算多个复值组合权重。 向量解扩器和线性组合器组合操作以使用多个非数据携带正交码，所述至少一个数据携带正交码和多个复值组合权重来对接收到的扩展进行解扩展 信号以产生具有基本去除的突发噪声的数据符号。

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。