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公开(公告)号：US20120076195A1
公开(公告)日：2012-03-29
申请号：US13312273
申请日：2011-12-06
IPC分类号： H03H7/30
CPC分类号： H03H21/0067 , H03H21/0001 , H03H21/0012
摘要： An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients Cj and tap gains Mj is provided. A filter control loop controls all of the tap coefficients Cj such that an error signal derived from the filter output is minimized. One or more tap control loops controls a tap gain Mk such that the corresponding tap coefficient Ck satisfies a predetermined control condition. For example, |Ck| can be maximized subject to a constraint |Ck| Cmax, where Cmax is a predetermined maximum coefficient value. In this manner, the effect of quantization noise on the coefficients Cj can be reduced. Multiple tap control loops can be employed, one for each tap. Alternatively, a single tap control loop can be used to control multiple taps by time interleaving.
摘要翻译： 提供具有作为对应抽头系数Cj和抽头增益Mj的乘积的抽头权重Wj的自适应横向滤波器。 滤波器控制环控制所有抽头系数Cj，使得从滤波器输出得到的误差信号最小化。 一个或多个抽头控制回路控制抽头增益Mk使得对应的抽头系数Ck满足预定的控制条件。 例如| Ck | 可以最大限度地受限于| Ck | Cmax，其中Cmax是预定的最大系数值。 以这种方式，可以减小量化噪声对系数Cj的影响。 可以采用多个抽头控制回路，每个抽头一个。 或者，可以使用单抽头控制回路来通过时间交织来控制多个抽头。
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公开(公告)号：US08077767B2
公开(公告)日：2011-12-13
申请号：US12358993
申请日：2009-01-23
IPC分类号： H03H7/30
CPC分类号： H03H21/0067 , H03H21/0001 , H03H21/0012
摘要： An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients Cj and tap gains Mj is provided. A filter control loop controls all of the tap coefficients Cj such that an error signal derived from the filter output is minimized. One or more tap control loops controls a tap gain Mk such that the corresponding tap coefficient Ck satisfies a predetermined control condition. For example, |Ck| can be maximized subject to a constraint |Ck|≦Cmax, where Cmax is a predetermined maximum coefficient value. In this manner, the effect of quantization noise on the coefficients Cj can be reduced. Multiple tap control loops can be employed, one for each tap. Alternatively, a single tap control loop can be used to control multiple taps by time interleaving.
摘要翻译： 提供具有作为对应抽头系数Cj和抽头增益Mj的乘积的抽头权重Wj的自适应横向滤波器。 滤波器控制环控制所有抽头系数Cj，使得从滤波器输出得到的误差信号最小化。 一个或多个抽头控制回路控制抽头增益Mk使得对应的抽头系数Ck满足预定的控制条件。 例如| Ck | 可以最大化受限于| Ck |＆nlE; Cmax，其中Cmax是预定的最大系数值。 以这种方式，可以减小量化噪声对系数Cj的影响。 可以采用多个抽头控制回路，每个抽头一个。 或者，可以使用单抽头控制回路来通过时间交织来控制多个抽头。
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公开(公告)号：US20090198755A1
公开(公告)日：2009-08-06
申请号：US12358993
申请日：2009-01-23
IPC分类号： G06F17/10
CPC分类号： H03H21/0067 , H03H21/0001 , H03H21/0012
摘要： An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients Cj and tap gains Mj is provided. A filter control loop controls all of the tap coefficients Cj such that an error signal derived from the filter output is minimized. One or more tap control loops controls a tap gain Mk such that the corresponding tap coefficient Ck satisfies a predetermined control condition. For example, |Ck| can be maximized subject to a constraint |Ck|≦Cmax, where Cmax is a predetermined maximum coefficient value. In this manner, the effect of quantization noise on the coefficients Cj can be reduced. Multiple tap control loops can be employed, one for each tap. Alternatively, a single tap control loop can be used to control multiple taps by time interleaving.
摘要翻译： 提供具有作为对应抽头系数Cj和抽头增益Mj的乘积的抽头权重Wj的自适应横向滤波器。 滤波器控制环控制所有抽头系数Cj，使得从滤波器输出得到的误差信号最小化。 一个或多个抽头控制回路控制抽头增益Mk使得对应的抽头系数Ck满足预定的控制条件。 例如| Ck | 可以最大化受约束| Ck | <= Cmax，其中Cmax是预定的最大系数值。 以这种方式，可以减小量化噪声对系数Cj的影响。 可以采用多个抽头控制回路，每个抽头一个。 或者，可以使用单抽头控制回路来通过时间交织来控制多个抽头。
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公开(公告)号：US08959132B2
公开(公告)日：2015-02-17
申请号：US13619597
申请日：2012-09-14
CPC分类号： H04L47/6245 , G06F1/10 , H03L7/00 , H04B3/32 , H04J3/0697 , H04L25/0278 , H04L43/16 , H04L47/25 , H04L47/521 , H04L47/6215 , H04L47/722
摘要： A method of optimizing filter performance through monitoring channel characteristics is provided. A signal enters a channel and a receiver receives the signal. The receiver includes a FIR filter to remove near-end transmitted interference and recover a far-end desired signal. The filter has storage elements configured as a shift registers to move the signal, multipliers to multiply the signal by a filter coefficient, an intermittent summer to combine the multiplied results into a replica of an interfering signal, a final summer to remove the replica from the receiver signal to provide direct and indirect monitoring of the signal, where direct monitoring includes time or frequency monitoring, and indirect monitoring includes monitoring signal to noise ratio, error magnitude or bit error rate. The filter is optimized according to monitoring and includes reducing a dynamic range, reducing bits of precision, reducing linearity, the filter, and reallocating the filter.
摘要翻译： 提供了一种通过监控通道特性来优化滤波器性能的方法。 一个信号进入一个通道，一个接收器接收信号。 接收机包括用于去除近端传输干扰并恢复远端期望信号的FIR滤波器。 滤波器具有配置为移位寄存器的存储元件，用于移动信号，乘法器将信号乘以滤波器系数，间歇夏季，以将相乘的结果合并为干扰信号的复制品，最后一个夏季从 接收机信号提供对信号的直接和间接监测，其中直接监视包括时间或频率监测，间接监测包括监测信噪比，误差幅度或误码率。 滤波器根据监控进行优化，包括减少动态范围，降低精度，降低线性度，滤波器和重新分配滤波器。
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公开(公告)号：US20130013658A1
公开(公告)日：2013-01-10
申请号：US13619597
申请日：2012-09-14
IPC分类号： G06F17/10
CPC分类号： H04L47/6245 , G06F1/10 , H03L7/00 , H04B3/32 , H04J3/0697 , H04L25/0278 , H04L43/16 , H04L47/25 , H04L47/521 , H04L47/6215 , H04L47/722
摘要： A method of optimizing filter performance through monitoring channel characteristics is provided. A signal enters a channel and a receiver receives the signal. The receiver includes a FIR filter to remove near-end transmitted interference and recover a far-end desired signal. The filter has storage elements configured as a shift registers to move the signal, multipliers to multiply the signal by a filter coefficient, an intermittent summer to combine the multiplied results into a replica of an interfering signal, a final summer to remove the replica from the receiver signal to provide direct and indirect monitoring of the signal, where direct monitoring includes time or frequency monitoring, and indirect monitoring includes monitoring signal to noise ratio, error magnitude or bit error rate. The filter is optimized according to monitoring and includes reducing a dynamic range, reducing bits of precision, reducing linearity, the filter, and reallocating the filter.
摘要翻译： 提供了一种通过监控通道特性来优化滤波器性能的方法。 一个信号进入一个通道，一个接收器接收信号。 接收机包括用于去除近端传输干扰并恢复远端期望信号的FIR滤波器。 滤波器具有配置为移位寄存器的存储元件，用于移动信号，乘法器将信号乘以滤波器系数，间歇夏季，以将相乘的结果合并为干扰信号的复制品，最后一个夏季从 接收机信号提供对信号的直接和间接监测，其中直接监视包括时间或频率监测，间接监测包括监测信噪比，误差幅度或误码率。 滤波器根据监控进行优化，包括减少动态范围，降低精度，降低线性度，滤波器和重新分配滤波器。
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公开(公告)号：US08300686B2
公开(公告)日：2012-10-30
申请号：US13312273
申请日：2011-12-06
IPC分类号： H03H7/40
CPC分类号： H03H21/0067 , H03H21/0001 , H03H21/0012
摘要： An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients Cj and tap gains Mj is provided. A filter control loop controls all of the tap coefficients Cj such that an error signal derived from the filter output is minimized. One or more tap control loops controls a tap gain Mk such that the corresponding tap coefficient Ck satisfies a predetermined control condition. For example, |Ck| can be maximized subject to a constraint |Ck| Cmax, where Cmax is a predetermined maximum coefficient value. In this manner, the effect of quantization noise on the coefficients Cj can be reduced. Multiple tap control loops can be employed, one for each tap. Alternatively, a single tap control loop can be used to control multiple taps by time interleaving.
摘要翻译： 提供具有作为对应抽头系数Cj和抽头增益Mj的乘积的抽头权重Wj的自适应横向滤波器。 滤波器控制环控制所有抽头系数Cj，使得从滤波器输出得到的误差信号最小化。 一个或多个抽头控制回路控制抽头增益Mk使得对应的抽头系数Ck满足预定的控制条件。 例如| Ck | 可以最大限度地受限于| Ck | Cmax，其中Cmax是预定的最大系数值。 以这种方式，可以减小量化噪声对系数Cj的影响。 可以采用多个抽头控制回路，每个抽头一个。 或者，可以使用单抽头控制回路来通过时间交织来控制多个抽头。
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公开(公告)号：US08296347B2
公开(公告)日：2012-10-23
申请号：US11981565
申请日：2007-10-30
IPC分类号： G06F17/10
CPC分类号： H04L47/6245 , G06F1/10 , H03L7/00 , H04B3/32 , H04J3/0697 , H04L25/0278 , H04L43/16 , H04L47/25 , H04L47/521 , H04L47/6215 , H04L47/722
摘要： A method of optimizing filter performance through monitoring channel characteristics is provided. A signal enters a channel and a receiver receives the signal. The receiver includes a FIR filter to remove near-end transmitted interference and recover a far-end desired signal. The filter has storage elements configured as a shift registers to move the signal, multipliers to multiply the signal by a filter coefficient, an intermittent summer to combine the multiplied results into a replica of an interfering signal, a final summer to remove the replica from the receiver signal to provide direct and indirect monitoring of the signal, where direct monitoring includes time or frequency monitoring, and indirect monitoring includes monitoring signal to noise ratio, error magnitude or bit error rate. The filter is optimized according to monitoring and includes reducing a dynamic range, reducing bits of precision, reducing linearity, the filter, and reallocating the filter.
摘要翻译： 提供了一种通过监控通道特性来优化滤波器性能的方法。 一个信号进入一个通道，一个接收器接收信号。 接收机包括用于去除近端传输干扰并恢复远端期望信号的FIR滤波器。 滤波器具有配置为移位寄存器的存储元件，用于移动信号，乘法器将信号乘以滤波器系数，间歇夏季，以将相乘的结果合并为干扰信号的复制品，最后一个夏季从 接收机信号提供对信号的直接和间接监测，其中直接监视包括时间或频率监测，间接监测包括监测信噪比，误差幅度或误码率。 滤波器根据监控进行优化，包括减少动态范围，降低精度，降低线性度，滤波器和重新分配滤波器。
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公开(公告)号：US07483479B2
公开(公告)日：2009-01-27
申请号：US10944168
申请日：2004-09-16
IPC分类号： H03K5/159
CPC分类号： H03H21/0067 , H03H21/0001 , H03H21/0012
摘要： An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients Cj and tap gains Mj is provided. A filter control loop controls all of the tap coefficients Cj such that an error signal derived from the filter output is minimized. One or more tap control loops controls a tap gain Mk such that the corresponding tap coefficient Ck satisfies a predetermined control condition. For example, |Ck| can be maximized subject to a constraint |Ck|≦Cmax, where Cmax is a predetermined maximum coefficient value. In this manner, the effect of quantization noise on the coefficients Cj can be reduced. Multiple tap control loops can be employed, one for each tap. Alternatively, a single tap control loop can be used to control multiple taps by time interleaving.
摘要翻译： 提供具有作为对应抽头系数Cj和抽头增益Mj的乘积的抽头权重Wj的自适应横向滤波器。 滤波器控制环控制所有抽头系数Cj，使得从滤波器输出得到的误差信号最小化。 一个或多个抽头控制回路控制抽头增益Mk使得对应的抽头系数Ck满足预定的控制条件。 例如| Ck | 可以最大化受约束| Ck | <= Cmax，其中Cmax是预定的最大系数值。 以这种方式，可以减小量化噪声对系数Cj的影响。 可以采用多个抽头控制回路，每个抽头一个。 或者，可以使用单抽头控制回路来通过时间交织来控制多个抽头。
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公开(公告)号：US20080275929A1
公开(公告)日：2008-11-06
申请号：US11981565
申请日：2007-10-30
IPC分类号： G06F17/10
CPC分类号： H04L47/6245 , G06F1/10 , H03L7/00 , H04B3/32 , H04J3/0697 , H04L25/0278 , H04L43/16 , H04L47/25 , H04L47/521 , H04L47/6215 , H04L47/722
摘要： A method of optimizing filter performance through monitoring channel characteristics is provided. A signal enters a channel and a receiver receives the signal. The receiver includes a FIR filter to remove near-end transmitted interference and recover a far-end desired signal. The filter has storage elements configured as a shift registers to move the signal, multipliers to multiply the signal by a filter coefficient, an intermittent summer to combine the multiplied results into a replica of an interfering signal, a final summer to remove the replica from the receiver signal to provide direct and indirect monitoring of the signal, where direct monitoring includes time or frequency monitoring, and indirect monitoring includes monitoring signal to noise ratio, error magnitude or bit error rate. The filter is optimized according to monitoring and includes reducing a dynamic range, reducing bits of precision, reducing linearity, the filter, and reallocating the filter.
摘要翻译： 提供了一种通过监控通道特性来优化滤波器性能的方法。 一个信号进入一个通道，一个接收器接收信号。 接收机包括用于去除近端传输干扰并恢复远端期望信号的FIR滤波器。 滤波器具有配置为移位寄存器的存储元件，用于移动信号，乘法器将信号乘以滤波器系数，间歇夏季，以将相乘的结果合并为干扰信号的复制品，最后一个夏季从 接收机信号提供对信号的直接和间接监测，其中直接监视包括时间或频率监测，间接监测包括监测信噪比，误差幅度或误码率。 滤波器根据监控进行优化，包括减少动态范围，降低精度，降低线性度，滤波器和重新分配滤波器。
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公开(公告)号：US08827491B2
公开(公告)日：2014-09-09
申请号：US13809744
申请日：2011-07-13
IPC分类号： F21V7/00 , F21V5/04 , G02B3/08 , F21S2/00 , F21Y101/02
CPC分类号： F21V7/0083 , F21S2/005 , F21V5/04 , F21V7/0091 , F21Y2115/10 , G02B3/08
摘要： A lighting device preventing an illumination variation on a surface to be irradiated. The lighting device has a first light emitting surface section (102a) which is a surface formed by rotating a bus with a central axis as a rotation axis in a first angle area (−θ1≦θ≦θ1) of an angle (θ) relative to a cross section of the bus which is an intersection line with the cross section perpendicular to a surface (801a) to be irradiated and including the central axis of a lighting lens (100), a second light emitting surface section (102b) formed in a second angle area (θ1≦θ≦180° and −180°≦θ≦−θ1) of the angle (θ) so that a light flux emitted toward the surface (801a) increases as compared with the case where the first light emitting surface section (102a) is formed in a whole-angle area (0°≦θ
摘要翻译： 一种防止被照射表面上的照明变化的照明装置。 照明装置具有第一发光表面部分（102a），该第一发光表面部分（102a）是通过使第一角度区域（ - ＆lt;＆lt; 1＆nlE;＆thetas;＆nlE;＆amp; thetas; 1）中的旋转轴线的中心轴线的总线旋转而形成的表面 相对于总线的横截面的角度（θ），其是与要照射的表面（801a）垂直的横截面的交点，并且包括照明透镜（100）的中心轴，第二发光 表面部分（102b）形成在角度（θ）的第二角度区域（θ; 1＆nlE;＆amp;;;; n1E; 180°和-180°＆nlE;; thetas; 1）中， 与第一发光面部（102a）形成在发光面部（102）上的全角度区域（0°＆lt; 1 |θ3; 360°）的情况相比，朝向表面（801a） 由第一发光表面部分（102a）和第二发光表面部分（102a）之间的步骤形成的第三发光表面部分（102c） d发光面部（102b）。
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