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1. 发明授权

US08547258B2 Compressive sense based reconstruction in the presence of frequency offset 有权
标题翻译：在频率偏移的情况下，基于压缩感觉的重建
公开(公告)号：US08547258B2
公开(公告)日：2013-10-01
申请号：US13323578
申请日：2011-12-12
申请人： Charles K. Sestok , Andrew Waters
发明人： Charles K. Sestok , Andrew Waters
IPC分类号： H03M1/06
CPC分类号： H03M1/1245 , H03M7/3062
摘要： A calibration method to compensate for a sparsifying basis mismatch is provided. An analog signal is converted to a first digital signal at a sampling frequency that is less than a Nyquist frequency for the analog signal to generate a first digital signal. Each of a plurality of spectral terms is iteratively isolated from the first digital signal, and the offset for each of the plurality of spectral terms is iteratively determined. A dictionary is then constructed using the offset for each of the plurality of spectral terms, where the dictionary compensates for mismatch from a sparsifying basis.
摘要翻译：提供了一种用于补偿稀疏基础不匹配的校准方法。模拟信号以小于奈奎斯特频率的采样频率被转换为第一数字信号，以使模拟信号产生第一数字信号。多个频谱项中的每一个与第一数字信号迭代地隔离，并且迭代地确定多个频谱项中的每一个的偏移。然后使用多个频谱项中的每一个的偏移来构建字典，其中字典从稀疏基础补偿不匹配。

2. 发明申请

US20130069807A1 COMPRESSIVE SENSE BASED RECONSTRUCTION ALGORITHM FORNON-UNIFORM SAMPLING BASED DATA CONVERTER 有权
标题翻译：基于压缩感知的基于数据转换器的均匀采样重建算法
公开(公告)号：US20130069807A1
公开(公告)日：2013-03-21
申请号：US13234297
申请日：2011-09-16
申请人： Charles K. Sestok , Andrew Waters
发明人： Charles K. Sestok , Andrew Waters
IPC分类号： H03M1/38
CPC分类号： H03M7/00 , H03M1/1265 , H03M7/3062
摘要： Compressive sensing is an emerging field that attempts to prevent the losses associated with data compression and improve efficiency overall, and compressive sensing looks to perform the compression before or during capture, before energy is wasted. Here, a reconstruction algorithm is proposed for a compressive sensing successive approximation register (SAR) analog-to-digital converter (ADC). Accordingly, an analog signal is converted to a first digital signal at a sampling frequency that is less than a Nyquist frequency for the analog signal, and a second digital signal is constructed from the first digital signal with a box constrained linear optimization process such that the second digital signal is approximately equal to an analog-to-digital conversion of the analog signal at the Nyquist frequency for the analog signal.
摘要翻译：压缩感测是一个新兴领域，它试图防止与数据压缩相关的损失，并提高整体效率，压缩感测在能量浪费之前，在捕获之前或捕获过程中会执行压缩。在这里，提出了一种用于压缩感测逐次逼近寄存器（SAR）模数转换器（ADC）的重建算法。因此，模拟信号以小于模拟信号的奈奎斯特频率的采样频率转换为第一数字信号，并且第二数字信号由第一数字信号用盒子约束线性优化处理构成，使得第二数字信号近似等于模拟信号在奈奎斯特频率处的模拟信号的模数转换。

3. 发明授权

US08094050B2 Bandwidth mismatch estimation in time-interleaved analog-to-digital converters 有权
标题翻译：时间交织模数转换器中的带宽失配估计
公开(公告)号：US08094050B2
公开(公告)日：2012-01-10
申请号：US13032407
申请日：2011-02-22
申请人： Charles K. Sestok , Fernando A. Mujica
发明人： Charles K. Sestok , Fernando A. Mujica
IPC分类号： H03M1/10
CPC分类号： H03M1/1061 , H03M1/1215
摘要： With high speed, high resolution time-interleaved (TI) analog-to-digital converters (ADCs), bandwidth mismatches between the various ADC branches can pose a significant problem. Previously, though, no adequate solution has been found. Here, a method and apparatus are provided that can calculate and compensate for bandwidth mismatches in a TI ADC, enabling a high speed, high resolution TI ADC to be produced.
摘要翻译：采用高速，高分辨率时间交错（TI）模数转换器（ADC），各种ADC分支之间的带宽不匹配可能会造成重大问题。以前，虽然没有找到足够的解决方案。这里提供了一种方法和装置，可以计算和补偿TI ADC中的带宽不匹配，从而实现高速，高分辨率TI ADC的生产。

4. 发明申请

US20130147646A1 COMPRESSIVE SENSE BASED RECONSTRUCTION IN THE PRESENCE OF FREQUENCY OFFSET 有权
标题翻译：频率偏差存在的基于压缩感知的重构
公开(公告)号：US20130147646A1
公开(公告)日：2013-06-13
申请号：US13323578
申请日：2011-12-12
申请人： Charles K. Sestok , Andrew Waters
发明人： Charles K. Sestok , Andrew Waters
IPC分类号： H03M1/12
CPC分类号： H03M1/1245 , H03M7/3062
摘要： A calibration method to compensate for a sparsifying basis mismatch is provided. An analog signal is converted to a first digital signal at a sampling frequency that is less than a Nyquist frequency for the analog signal to generate a first digital signal. Each of a plurality of spectral terms is iteratively isolated from the first digital signal, and the offset for each of the plurality of spectral terms is iteratively determined. A dictionary is then constructed using the offset for each of the plurality of spectral terms, where the dictionary compensates for mismatch from a sparsifying basis.
摘要翻译：提供了一种用于补偿稀疏基础不匹配的校准方法。模拟信号以小于奈奎斯特频率的采样频率被转换为第一数字信号，以使模拟信号产生第一数字信号。多个频谱项中的每一个与第一数字信号迭代地隔离，并且迭代地确定多个频谱项中的每一个的偏移。然后使用多个频谱项中的每一个的偏移来构建字典，其中字典从稀疏基础补偿不匹配。

5. 发明申请

US20110090107A1 TIME-INTERLEAVED-DUAL CHANNEL ADC WITH MISMATCH COMPENSATION 有权
标题翻译：具有误差补偿的时间间隔双通道ADC
公开(公告)号：US20110090107A1
公开(公告)日：2011-04-21
申请号：US12580032
申请日：2009-10-15
申请人： Fernando A. Mujica , Charles K. Sestok , Zigang Yang
发明人： Fernando A. Mujica , Charles K. Sestok , Zigang Yang
IPC分类号： H03M1/12
CPC分类号： H03M1/004 , H03M1/1215 , H03M1/123
摘要： Previously, when designing receivers for radio frequency (RF) or wireless communications, designers chose between time-interleaved (TI) analog-to-digital converters (ADCs) for intermediate frequency architectures and dual channel ADCs for direct conversion architectures. Here, similarities between TI ADCs and dual channel ADC were recognized, and an ADC that has the capability of operating as a TI ADCs and dual channel ADC is provided. This allows designer to have greatly increased flexibility during the design process which can greatly reduce design costs, while also allowing the manufacturer of the ADC to realize a reduction in its operating costs.
摘要翻译：以前，当设计用于射频（RF）或无线通信的接收机时，设计人员选择用于中频架构的时间交织（TI）模数转换器（ADC）和用于直接转换架构的双通道ADC。在这里，TI ADC和双通道ADC之间的相似之处得到了认可，并且提供了具有作为TI ADC和双通道ADC运作能力的ADC。这允许设计人员在设计过程中大大提高灵活性，从而大大降低设计成本，同时还允许ADC的制造商实现降低运行成本。

6. 发明授权

US08406171B2 Network MIMO reporting, control signaling and transmission 有权
标题翻译：网络MIMO报告，控制信令和传输
公开(公告)号：US08406171B2
公开(公告)日：2013-03-26
申请号：US12534851
申请日：2009-08-03
申请人： Eko N. Onggosanusi , Runhua Chen , Il Han Kim , Badri N. Varadarajan , Anand G. Dabak , Charles K. Sestok
发明人： Eko N. Onggosanusi , Runhua Chen , Il Han Kim , Badri N. Varadarajan , Anand G. Dabak , Charles K. Sestok
IPC分类号： H04W40/00
CPC分类号： H04B7/024 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L5/0023 , H04L5/0037 , H04L5/006
摘要： A coordinated multipoint transmitter is for use with a network MIMO super-cell and includes a coordination unit configured to provide joint link processing to coordinate a multipoint transmission corresponding to a set of transmission points. Additionally, the coordinated multipoint transmitter also includes a transmission unit configured to transmit the multipoint transmission using the set of transmission points. Additionally, a coordinated transmission receiver is for use with a network MIMO super-cell and includes a reception unit configured to receive a multipoint transmission corresponding to a set of transmission points. The coordinated transmission receiver also includes a processing unit configured to process the multipoint transmission from the set of transmission points.
摘要翻译：协调的多点发射机用于网络MIMO超小区，并且包括配置为提供联合链路处理以协调对应于一组传输点的多点传输的协调单元。此外，协调多点发射机还包括被配置为使用该组传输点来发送多点传输的传输单元。此外，协调传输接收机用于网络MIMO超小区，并且包括被配置为接收与一组传输点相对应的多点传输的接收单元。协调传输接收机还包括处理单元，其被配置为处理来自该组传输点的多点传输。

7. 发明授权

US07916051B1 Bandwidth mismatch estimation for time interleaved ADCs 有权
标题翻译：时间交错ADC的带宽失配估计
公开(公告)号：US07916051B1
公开(公告)日：2011-03-29
申请号：US12572831
申请日：2009-10-02
申请人： Charles K. Sestok , Fernando A. Mujica
发明人： Charles K. Sestok , Fernando A. Mujica
IPC分类号： H03M1/10
CPC分类号： H03M1/1061 , H03M1/1215
摘要： With high speed, high resolution time-interleaved (TI) analog-to-digital converters (ADCs), bandwidth mismatches between the various ADC branches can pose a significant problem. Previously, though, no adequate solution has been found. Here, a method and apparatus are provided that can calculate and compensate for bandwidth mismatches in a TI ADC, enabling a high speed, high resolution TI ADC to be produced.
摘要翻译：采用高速，高分辨率时间交错（TI）模数转换器（ADC），各种ADC分支之间的带宽不匹配可能会造成重大问题。以前，虽然没有找到足够的解决方案。这里提供了一种方法和装置，可以计算和补偿TI ADC中的带宽不匹配，从而实现高速，高分辨率TI ADC的生产。

8. 发明申请

US20100027456A1 NETWORK MIMO REPORTING, CONTROL SIGNALING AND TRANSMISSION 有权
标题翻译：网络MIMO报告，控制信令和传输
公开(公告)号：US20100027456A1
公开(公告)日：2010-02-04
申请号：US12534851
申请日：2009-08-03
申请人： Eko N. Onggosanusi , Runhua Chen , Il Han Kim , Badri N. Varadarajan , Anand G. Dabak , Charles K. Sestok
发明人： Eko N. Onggosanusi , Runhua Chen , Il Han Kim , Badri N. Varadarajan , Anand G. Dabak , Charles K. Sestok
IPC分类号： H04H20/71 , H04L27/28
CPC分类号： H04B7/024 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L5/0023 , H04L5/0037 , H04L5/006
摘要： A coordinated multipoint transmitter is for use with a network MIMO super-cell and includes a coordination unit configured to provide joint link processing to coordinate a multipoint transmission corresponding to a set of transmission points. Additionally, the coordinated multipoint transmitter also includes a transmission unit configured to transmit the multipoint transmission using the set of transmission points. Additionally, a coordinated transmission receiver is for use with a network MIMO super-cell and includes a reception unit configured to receive a multipoint transmission corresponding to a set of transmission points. The coordinated transmission receiver also includes a processing unit configured to process the multipoint transmission from the set of transmission points.
摘要翻译：协调的多点发射机用于网络MIMO超小区，并且包括配置为提供联合链路处理以协调对应于一组传输点的多点传输的协调单元。此外，协调多点发射机还包括被配置为使用该组传输点来发送多点传输的传输单元。此外，协调传输接收机用于网络MIMO超小区，并且包括被配置为接收与一组传输点相对应的多点传输的接收单元。协调传输接收机还包括处理单元，其被配置为处理来自该组传输点的多点传输。

9. 发明授权

US07031379B2 Time domain equalizer for DMT modulation 有权
标题翻译：用于DMT调制的时域均衡器
公开(公告)号：US07031379B2
公开(公告)日：2006-04-18
申请号：US09939134
申请日：2001-08-24
申请人： Charles K. Sestok, IV , Nirmal C. Warke
发明人： Charles K. Sestok, IV , Nirmal C. Warke
IPC分类号： H04B1/38 , H04L5/16
CPC分类号： H04L25/03038 , H04L2025/03414
摘要： A method for deriving coefficients for a time domain equalizer function (24) as implemented by a digital signal processor (35) in a DSL modem (20) is disclosed. A transmitting modem (10), such as at a central office, issues a pseudo-random training sequence that is received by the receiving modem (20). Correlation matrices are derived by the digital signal processor (35), from which sets of eigenvalues and eigenvectors are derived. A flatness constraint on the frequency response of the time domain equalizer is established, and included with a flatness scaling factor (λ) into a minimization cost function. One or more values of the flatness scaling factor (λ), preferably between minimum and maximum eigenvalues, are evaluated in the cost function, to derive the optimum filter for the time-domain equalizer. The flatness constraint ensures that the time-domain equalizer is not subject to near null conditions and large variations in its frequency response.
摘要翻译：公开了一种用于导出由DSL调制解调器（20）中的数字信号处理器（35）实现的时域均衡器功能（24）的系数的方法。诸如在中心局的发射调制解调器（10）发布由接收调制解调器（20）接收的伪随机训练序列。相关矩阵由数字信号处理器（35）导出，从其导出特征值和特征向量的集合。建立了对时域均衡器的频率响应的平坦度约束，并将平坦度缩放因子（lambda）包含在最小化成本函数中。在成本函数中评估平坦度缩放因子（lambda）的一个或多个值，优选在最小和最大特征值之间，以导出时域均衡器的最佳滤波器。平坦度约束确保时域均衡器不受近零空间条件和频率响应的大变化。

10. 发明授权

US08547260B2 Compressive sense based reconstruction algorithm for non-uniform sampling based data converter 有权
标题翻译：基于压缩感知的重建算法用于基于非均匀采样的数据转换器
公开(公告)号：US08547260B2
公开(公告)日：2013-10-01
申请号：US13234297
申请日：2011-09-16
申请人： Charles K. Sestok , Andrew Waters
发明人： Charles K. Sestok , Andrew Waters
IPC分类号： H03M1/00
CPC分类号： H03M7/00 , H03M1/1265 , H03M7/3062
摘要： Compressive sensing is an emerging field that attempts to prevent the losses associated with data compression and improve efficiency overall, and compressive sensing looks to perform the compression before or during capture, before energy is wasted. Here, a reconstruction algorithm is proposed for a compressive sensing successive approximation register (SAR) analog-to-digital converter (ADC). Accordingly, an analog signal is converted to a first digital signal at a sampling frequency that is less than a Nyquist frequency for the analog signal, and a second digital signal is constructed from the first digital signal with a box constrained linear optimization process such that the second digital signal is approximately equal to an analog-to-digital conversion of the analog signal at the Nyquist frequency for the analog signal.
摘要翻译：压缩感测是一个新兴领域，它试图防止与数据压缩相关的损失，并提高整体效率，压缩感测在能量浪费之前，在捕获之前或捕获过程中会执行压缩。在这里，提出了一种用于压缩感测逐次逼近寄存器（SAR）模数转换器（ADC）的重建算法。因此，模拟信号以小于模拟信号的奈奎斯特频率的采样频率转换为第一数字信号，并且第二数字信号由第一数字信号用盒子约束线性优化处理构成，使得第二数字信号近似等于模拟信号在奈奎斯特频率处的模拟信号的模数转换。

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