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公开(公告)号：US07130345B2
公开(公告)日：2006-10-31
申请号：US10251733
申请日：2002-09-20
IPC分类号： H03H7/30
CPC分类号： H04L25/03006 , H04L2025/03414 , H04L2025/03535
摘要： A number of basic equalization and demodulation structures have been shown to be appropriate for DMT systems depending on the channel, noise, and system parameters. These include single path, dual path, oversampled, and double rate structures. Using the fundamental computation units of two TEQs (FIR filters) and two FFTs, in conjunction with simple delays, downsampling and routing, single path, dual path, oversampled and double rate equalization structures can be realized from a common equalization structure.
摘要翻译： 根据信道，噪声和系统参数，已经显示出许多基本的均衡和解调结构适用于DMT系统。 这些包括单路径，双路径，过采样和双速率结构。 使用两个TEQ（FIR滤波器）和两个FFT的基本计算单元，结合简单的延迟，下采样和路由，可以从公共均衡结构实现单路径，双路径，过采样和双速率均衡结构。
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公开(公告)号：US07277513B2
公开(公告)日：2007-10-02
申请号：US10651157
申请日：2003-08-28
申请人： Nadeem Ahmed , Arthur John Redfern
发明人： Nadeem Ahmed , Arthur John Redfern
IPC分类号： H04B1/10
CPC分类号： H04L27/2602
摘要： System and method for reducing interference to existing devices. A preferred embodiment comprises specifying a frequency range for a set of dummy signals, specifying a clipping function to ensure that the set of dummy signals do not exceed a maximum power constraint, incorporating a least squares solution for computing the set of dummy signals into the clipping function, and iterating the clipping function until a terminating condition is reached. The use of the clipping function limits the magnitude of the dummy signals, to ensure that dummy signals do not exceed a maximum power constraint.
摘要翻译： 减少对现有设备的干扰的系统和方法。 优选实施例包括指定一组虚拟信号的频率范围，指定削波函数以确保该虚拟信号组不超过最大功率约束，并将最小二乘解用于将该虚拟信号集合计算到限幅中 功能，并迭代剪切功能，直到达到终止条件。 削波功能的使用限制了虚拟信号的幅度，以确保虚拟信号不超过最大功率约束。
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3.发明授权公开(公告)号：US08692801B2
公开(公告)日：2014-04-08
申请号：US13432576
申请日：2012-03-28
CPC分类号： G06F3/044 , G06F3/041 , G06F3/0416
摘要： An embodiment of the invention provides a method of detecting the position(s) where sensor(s) are activated on an interactive screen using sparse-activation compressive sensing. Sparse-activation compressive sensing makes use of the situation where the number of simultaneously activated sensors is substantially smaller than the number of sensors (nodes). Because the number of simultaneously activated sensors is substantially smaller than the number of sensors, the number of measurements required for determining which sensors are activated may also be reduced. Because fewer measurements are required when compared with full-scan techniques, less circuitry and power is required to detect the location(s) of activated sensors on an interactive screen.
摘要翻译： 本发明的实施例提供一种使用稀疏激活压缩感测来检测在交互式屏幕上激活传感器的位置的方法。 稀疏激活压缩感测利用了同时激活的传感器的数量显着小于传感器（节点）的数量的情况。 由于同时激活的传感器的数量显着小于传感器的数量，所以确定哪些传感器被激活所需的测量次数也可以减少。 与全扫描技术相比，由于需要较少的测量，因此需要较少的电路和功率来检测交互式屏幕上激活的传感器的位置。
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公开(公告)号：US08351551B2
公开(公告)日：2013-01-08
申请号：US12214004
申请日：2008-06-14
IPC分类号： H04L27/14
CPC分类号： H04L25/061 , H04L5/0007 , H04L27/0014 , H04L27/2647 , H04L2027/0026
摘要： A method of selecting an intermediate frequency (fIF) is disclosed (FIG. 7). The method includes measuring a first signal quality (704) on a first channel at a first intermediate frequency. The method further includes measuring a second signal quality (706) on the first channel at a second intermediate frequency. The intermediate frequency with the best signal quality is selected (710).
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公开(公告)号：US07333535B2
公开(公告)日：2008-02-19
申请号：US10293691
申请日：2002-11-13
申请人： Arthur John Redfern
发明人： Arthur John Redfern
IPC分类号： H04B17/00
CPC分类号： H04L27/2608
摘要： By allowing the block rate to vary, the existing Asymmetric Digital Subscriber Line (ADSL) system is modified to better address extended reach and higher data rates. A method is disclosed for providing improved reach from the ADSL standard by reducing the block rate from the ADSL standard and providing improved data rate for short loops by increasing the block rate from the ADSL standard.
摘要翻译： 通过允许阻塞率变化，现有的非对称数字用户线（ADSL）系统被修改以更好地解决扩展覆盖范围和更高的数据速率。 公开了一种通过从ADSL标准减少块速率来提供来自ADSL标准的改进的覆盖率的方法，并且通过增加来自ADSL标准的块速率来提供用于短环路的改进的数据速率。
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公开(公告)号：US08983080B2
公开(公告)日：2015-03-17
申请号：US13447377
申请日：2012-04-16
摘要： For protecting a speaker, an input signal is received and filtered into component signals. A sum of the component signals is approximately equal to the input signal. The component signals include at least first and second component signals. A perceived loudness to a human from the speaker is more sensitive to the first component signal than to the second component signal. A temperature of the speaker is estimated. In response to the estimated temperature, the second component signal is scaled. An output signal is output to the speaker in response to the first component signal and the scaled second component signal.
摘要翻译： 为了保护扬声器，接收输入信号并将其滤波成分量信号。 分量信号的和近似等于输入信号。 分量信号至少包括第一和第二分量信号。 来自扬声器的对人的感知响度比第二分量信号对第一分量信号更敏感。 估计扬声器的温度。 响应于估计的温度，第二分量信号被缩放。 响应于第一分量信号和缩放的第二分量信号，输出信号被输出到扬声器。
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公开(公告)号：US07274736B2
公开(公告)日：2007-09-25
申请号：US10274322
申请日：2002-10-18
申请人： Arthur John Redfern , Nirmal C. Warke , Ming Ding
发明人： Arthur John Redfern , Nirmal C. Warke , Ming Ding
CPC分类号： H04L25/03019 , H04L25/03159 , H04L2025/03414
摘要： A dual path equalization structure is used to equalize DMT systems operating over channels in which different impairments dominate the performance of different parts of the channel. Two TEQ/DFT structures are used to process the received signal, each optimized for a different part of the channel. The outputs of the two paths are combined with appropriate frequency-domain equalization to achieve an overall equalization architecture which is better optimized for the whole channel.
摘要翻译： 双路均衡结构用于均衡DMT系统，其通过不同的损伤来控制通道不同部分的性能。 使用两个TEQ / DFT结构来处理接收的信号，每个结构针对信道的不同部分进行优化。 两个路径的输出与适当的频域均衡相结合，以实现对整个信道进行优化的整体均衡架构。
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8.发明申请公开(公告)号：US20130257783A1
公开(公告)日：2013-10-03
申请号：US13432576
申请日：2012-03-28
CPC分类号： G06F3/044 , G06F3/041 , G06F3/0416
摘要： An embodiment of the invention provides a method of detecting the position(s) where sensor(s) are activated on an interactive screen using sparse-activation compressive sensing. Sparse-activation compressive sensing makes use of the situation where the number of simultaneously activated sensors is substantially smaller than the number of sensors (nodes). Because the number of simultaneously activated sensors is substantially smaller than the number of sensors, the number of measurements required for determining which sensors are activated may also be reduced. Because fewer measurements are required when compared with full-scan techniques, less circuitry and power is required to detect the location(s) of activated sensors on an interactive screen.
摘要翻译： 本发明的实施例提供一种使用稀疏激活压缩感测来检测在交互式屏幕上激活传感器的位置的方法。 稀疏激活压缩感测利用了同时激活的传感器的数量显着小于传感器（节点）的数量的情况。 由于同时激活的传感器的数量显着小于传感器的数量，所以确定哪些传感器被激活所需的测量次数也可以减少。 与全扫描技术相比，由于需要较少的测量，因此需要较少的电路和功率来检测交互式屏幕上激活的传感器的位置。
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公开(公告)号：US20090310721A1
公开(公告)日：2009-12-17
申请号：US12214004
申请日：2008-06-14
IPC分类号： H04L27/14
CPC分类号： H04L25/061 , H04L5/0007 , H04L27/0014 , H04L27/2647 , H04L2027/0026
摘要： A method of selecting an intermediate frequency (fIF) is disclosed (FIG. 7). The method includes measuring a first signal quality (704) on a first channel at a first intermediate frequency. The method further includes measuring a second signal quality (706) on the first channel at a second intermediate frequency. The intermediate frequency with the best signal quality is selected (710).
摘要翻译： 公开了一种选择中频（fIF）的方法（图7）。 该方法包括以第一中间频率测量第一信道上的第一信号质量（704）。 该方法还包括在第二中频测量第一信道上的第二信号质量（706）。 选择具有最佳信号质量的中频（710）。
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