专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 发明申请

US20050163196A1 Cancellation of burst noise in a communication system with application to S-CDMA 有权
标题翻译：在应用于S-CDMA的通信系统中消除突发噪声
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。

3. 发明申请

US20070014334A1 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：US20070014334A1
公开(公告)日：2007-01-18
申请号：US11522837
申请日：2006-09-18
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
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 is 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直接的实现和计算上有效的方法来在多址通信系统中与每个输入扩展信号选择性地执行加权线性组合。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。

4. 发明申请

US20060041918A9 Signal processing under attenuated transmission conditions 有权
公开(公告)号：US20060041918A9
公开(公告)日：2006-02-23
申请号：US10427593
申请日：2003-05-01
申请人： Bruce Currivan , Thomas Kolze , Daniel Howard , Gottfried Ungerboeck
发明人： Bruce Currivan , Thomas Kolze , Daniel Howard , Gottfried Ungerboeck
IPC分类号： H04N7/16 , H04N7/173
CPC分类号： H04L27/3411 , H04B1/71 , H04B1/7107 , H04B7/216 , H04L25/03038 , H04L25/03343 , H04L25/49 , H04L27/3405 , H04L2025/03375 , H04L2025/03477 , H04N7/17309 , H04N21/42676
摘要： Signal processing under attenuated transmission conditions. Within an orthogonal signal space, the number of orthogonal signals that are used to transmit information from a transmitter to a receiver is reduced and the transmitted power of each of the now remaining orthogonal signals is modified; this may involve increasing the power of all of the remaining orthogonal signals equally or alternatively modifying them individually. The same modulation used before the reduction may also be used afterwards; within communication systems having multiple transmitter-receiver paths, this will ensure that the communication system's throughput and efficiency will remain unchanged even when one (or more) transmitter-receiver paths are highly attenuated. In addition, robust mode operation is provided for ranging and registering of transmitter devices when entering the communication system. In addition, the unused orthogonal signals may be employed to support interference cancellation of those orthogonal signals that are used to transmit information.

5. 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。

6. 发明授权

US07961823B2 System and method for adjusting multiple control loops using common criteria 有权
标题翻译：使用常用标准调整多个控制回路的系统和方法
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。

7. 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。

8. 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。

9. 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.

10. 发明申请

US20120134450A1 DETECTION AND MITIGATION OF TEMPORARY IMPAIRMENTS IN A COMMUNICATIONS CHANNEL 有权
标题翻译：通信通道中临时危害的检测和缓解
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式