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：US20070041477A1

公开(公告)日：2007-02-22

申请号：US11590388

申请日：2006-10-31

申请人： Thomas Kolze

发明人： Thomas Kolze

IPC分类号： H04L27/06

CPC分类号： H04L25/0224 ,  H04L25/0212 ,  H04L25/0216 ,  H04L27/2601

摘要： Characterizing channel response in a single upstream burst using redundant information from training tones (TTs). The invention is operable to utilize inserted TTs, contained within a transmitted data frame, to provide for an improved estimate of a communication channel's actual response and an improved estimate of the noise of the communication channel. The invention determines a maximum allowable delay spread of the many communication paths within a multi-path communication channel. Using the redundant TTs information then a portion of the finite impulse response of the communication channel, within the time domain, may be zeroed, thereby providing a much improved channel estimate and noise estimate. Using the redundant TTs, less noise is introduced onto the data tones (DTs) within a data frame. The present invention is also able to identify those portions of the TTs that are attributable to the actual channel and those that are attributable to the channel's noise.

摘要翻译： 使用来自训练音（TT）的冗余信息来表征单个上游脉冲串中的信道响应。 本发明可操作以利用包含在传输的数据帧内的插入的TT来提供对通信信道的实际响应的改进的估计和对通信信道的噪声的改进的估计。 本发明确定多路通信信道内的许多通信路径的最大允许延迟扩展。 使用冗余TTs信息，在时域内的通信信道的有限脉冲响应的一部分可以被归零，从而提供了大大改进的信道估计和噪声估计。 使用冗余TT，在数据帧内的数据音调（DT）上引入较少的噪声。 本发明还能够识别可归因于实际信道的那些TT部分以及归因于信道噪声的那些部分。

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：US09276794B2

公开(公告)日：2016-03-01

申请号：US13436031

申请日：2012-03-30

申请人： Thomas Kolze

发明人： Thomas Kolze

IPC分类号： H04K1/10 ,  H04L27/26 ,  H04L27/34

CPC分类号： H04L27/2614 ,  H04L27/3411

摘要： Embodiments provide techniques for high peak to average power ratio (PAPR) event mitigation in high speed data networks, such as cable networks, for example. Embodiments are applicable to multi-carrier and single-carrier modulation systems. Embodiments operate by predicting or detecting the occurrence of a peaking event at the transmitter, and then mitigating potential effects of the peaking event at the transmitter, including application of alternative constellation symbol mappings.

公开(公告)号：US09237050B2

公开(公告)日：2016-01-12

申请号：US13436069

申请日：2012-03-30

申请人： Thomas Kolze

发明人： Thomas Kolze

IPC分类号： H04K1/10 ,  H04L27/26 ,  H04L27/34

CPC分类号： H04L27/2614 ,  H04L27/3411

摘要： Embodiments provide techniques for high peak to average power ratio (PAPR) event mitigation in high speed data networks, such as cable networks, for example. Embodiments are applicable to multi-carrier and single-carrier modulation systems. Embodiments operate by predicting or detecting the occurrence of a peaking event at the transmitter, and then mitigating potential effects of the peaking event at the transmitter, including application of alternative constellation symbol mappings.

摘要翻译： 实施例提供了用于高速数据网络（例如有线网络）中的高峰均功率比（PAPR）事件缓解的技术。 实施例可应用于多载波和单载波调制系统。 实施例通过预测或检测发射机处的峰值事件的发生，然后减轻发射机处的峰化事件的潜在影响，包括应用替代星座符号映射来进行操作。

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。

公开(公告)号：US07961823B2

公开(公告)日：2011-06-14

申请号：US10879673

申请日：2004-06-29

申请人： Thomas Kolze ,  Bruce Currivan ,  Afshin Momtaz

发明人： Thomas Kolze ,  Bruce Currivan ,  Afshin Momtaz

IPC分类号： H04B1/10 ,  H04B7/04 ,  H04L1/00

CPC分类号： H04L25/03006 ,  H04L7/033

摘要： Data error such as mean square error may be reduced in a system such as a communication receiver using a dithering algorithm that adjusts one or more parameters in the system. The dithering algorithm may be applied to more than one parameter in a nested manner. The dithering algorithm may be modified to immediately check the MSE after a parameter has been adjusted.

摘要翻译： 在诸如使用调整系统中的一个或多个参数的抖动算法的通信接收机的系统中，诸如均方误差之类的数据误差可能会降低。 抖动算法可以以嵌套方式应用于多个参数。 可以修改抖动算法，以便在调整参数后立即检查MSE。

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。

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：US20070140393A1

公开(公告)日：2007-06-21

申请号：US11676033

申请日：2007-02-16

申请人： Thomas Kolze

发明人： Thomas Kolze

IPC分类号： H04L7/00 ,  H04B1/38

CPC分类号： H04N21/6168 ,  H04B1/71 ,  H04B1/7102 ,  H04B1/7103 ,  H04B1/71055 ,  H04B1/71072 ,  H04B2201/709709 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/005 ,  H04L1/0057 ,  H04N7/17309

摘要： Systems and methods are disclosed for to compensating reference frequency drift in a communications system having a plurality of modems and a headend, where the system requires critical upstream timing. One embodiment of the method includes learning or determining the relative delay of each modem and reporting each modem's unique delay (relative to the closest modem) to the headend. The method further includes the headend monitoring its own reference for frequency drift, the modem broadcasting pertinent frequency drift information to the modems and adjusting the modems' upstream timing to account for each modem's unique distance (i.e., delay) combined with the broadcast stream of frequency drift information.

摘要翻译： 公开了用于在具有多个调制解调器和头端的通信系统中补偿参考频率漂移的系统和方法，其中系统需要关键的上行时序。 该方法的一个实施例包括学习或确定每个调制解调器的相对延迟并将每个调制解调器的唯一延迟（相对于最接近的调制解调器）报告给头端。 该方法还包括头端监测其自身的频率漂移参考，调制解调器向调制解调器广播相关频率漂移信息，并调整调制解调器的上行定时以考虑与频率广播流组合的每个调制解调器的唯一距离（即，延迟） 漂移信息。