公开(公告)号：US20090290622A1

公开(公告)日：2009-11-26

申请号：US12534643

申请日：2009-08-03

申请人： Hiroshi Takatori ,  Kenneth C. Dyer ,  Mark Callicotte

发明人： Hiroshi Takatori ,  Kenneth C. Dyer ,  Mark Callicotte

IPC分类号： H04B1/38

CPC分类号： H04B3/32 ,  H04B1/58

摘要： The present invention effectively cancels echo, near-end crosstalk and far-end crosstalk. A FEXT canceller is placed at the transmitter rather than at the receiver according to an aspect of the invention. In some embodiment, a FEXT canceller can be placed at the receiver only or the combination of both ends. The FEXT canceller is continuously adapted with information sent back from a remote receiver and with data from a neighbor transmitter that causes the crosstalk at the remote receiver. This allows the FEXT canceller to quickly adapt to a change in crosstalk function or conditions with the surrounding environment, for example, aging, temperature, humidity, physical pressure, etc. In some embodiments, an adaptation control signal is sent back from the receiver to the transmitter by using an overhead bit in the frame format. In some embodiments, part of the FEXT canceller is built-in at the remote receiver.

摘要翻译： 本发明有效地消除了回波，近端串扰和远端串扰。 根据本发明的一个方面，FEXT消除器被放置在发射器而不是接收器处。 在一些实施例中，FEXT消除器可以仅放置在接收器处或两端的组合。 FEXT消除器连续地适应从远程接收器发回的信息和来自邻近发射机的数据，这些数据导致远端接收机的串扰。 这允许FEXT消除器快速适应与周围环境（例如老化，温度，湿度，物理压力等）的串扰功能或条件的变化。在一些实施例中，自适应控制信号从接收器发送回 发送器通过使用帧格式的开销位。 在一些实施例中，FEXT消除器的一部分内置在远程接收器中。

公开(公告)号：US08787488B2

公开(公告)日：2014-07-22

申请号：US12534643

申请日：2009-08-03

申请人： Hiroshi Takatori ,  Kenneth C. Dyer ,  Mark Callicotte

发明人： Hiroshi Takatori ,  Kenneth C. Dyer ,  Mark Callicotte

IPC分类号： H04B5/00 ,  H04L25/03 ,  H04L5/16

CPC分类号： H04B3/32 ,  H04B1/58

摘要： The present invention effectively cancels echo, near-end crosstalk and far-end crosstalk. A FEXT canceller is placed at the transmitter rather than at the receiver according to an aspect of the invention. In some embodiment, a FEXT canceller can be placed at the receiver only or the combination of both ends. The FEXT canceller is continuously adapted with information sent back from a remote receiver and with data from a neighbor transmitter that causes the crosstalk at the remote receiver. This allows the FEXT canceller to quickly adapt to a change in crosstalk function or conditions with the surrounding environment, for example, aging, temperature, humidity, physical pressure, etc. In some embodiments, an adaptation control signal is sent back from the receiver to the transmitter by using an overhead bit in the frame format. In some embodiments, part of the FEXT canceller is built-in at the remote receiver.

摘要翻译： 本发明有效地消除了回波，近端串扰和远端串扰。 根据本发明的一个方面，FEXT消除器被放置在发射器而不是接收器处。 在一些实施例中，FEXT消除器可以仅放置在接收器处或两端的组合。 FEXT消除器连续地适应从远程接收机发回的信息和来自邻近发射机的数据，其导致远程接收机处的串扰。 这允许FEXT消除器快速适应与周围环境（例如老化，温度，湿度，物理压力等）的串扰功能或条件的变化。在一些实施例中，自适应控制信号从接收器发送回 发送器通过使用帧格式的开销位。 在一些实施例中，FEXT消除器的一部分内置在远程接收器中。

公开(公告)号：US07570685B2

公开(公告)日：2009-08-04

申请号：US10959622

申请日：2004-10-05

申请人： Hiroshi Takatori ,  Kenneth C. Dyer ,  Mark Callicotte

发明人： Hiroshi Takatori ,  Kenneth C. Dyer ,  Mark Callicotte

IPC分类号： H04B1/38

CPC分类号： H04B3/32 ,  H04B1/58

摘要： The present invention effectively cancels echo, near-end crosstalk and far-end crosstalk. A FEXT canceller is placed at the transmitter rather than at the receiver according to an aspect of the invention. In some embodiment, a FEXT canceller can be placed at the receiver only or the combination of both ends. The FEXT canceller is continuously adapted with information sent back from a remote receiver and with data from a neighbor transmitter that causes the crosstalk at the remote receiver. This allows the FEXT canceller to quickly adapt to a change in crosstalk function or conditions with the surrounding environment, for example, aging, temperature, humidity, physical pressure, etc. In some embodiments, an adaptation control signal is sent back from the receiver to the transmitter by using an overhead bit in the frame format. In some embodiments, part of the FEXT canceller is built-in at the remote receiver.

摘要翻译： 本发明有效地消除了回波，近端串扰和远端串扰。 根据本发明的一个方面，FEXT消除器被放置在发射器而不是接收器处。 在一些实施例中，FEXT消除器可以仅放置在接收器处或两端的组合。 FEXT消除器连续地适应从远程接收器发回的信息和来自邻近发射机的数据，这些数据导致远端接收机的串扰。 这允许FEXT消除器快速适应与周围环境（例如老化，温度，湿度，物理压力等）的串扰功能或条件的变化。在一些实施例中，自适应控制信号从接收器发送回 发送器通过使用帧格式的开销位。 在一些实施例中，FEXT消除器的一部分内置在远程接收器中。

公开(公告)号：US07085337B2

公开(公告)日：2006-08-01

申请号：US10938139

申请日：2004-09-10

申请人： Kenneth C. Dyer ,  Hiroshi Takatori

发明人： Kenneth C. Dyer ,  Hiroshi Takatori

IPC分类号： H04L7/00

CPC分类号： H03K5/135 ,  H04L25/0272 ,  H04L25/0292 ,  H04L25/08

摘要： High speed data transmission schemes often use differential lines to reduce the effect of noise on the data signal. Unfortunately, the signal propagation on the positive and negative lines may be different, which leads to a signal skew problem. This document describes a novel way of compensating for differential line skew in data transmission lines.

摘要翻译： 高速数据传输方案通常使用差分线路来减少噪声对数据信号的影响。 不幸的是，正负线上的信号传播可能不同，这导致信号偏斜问题。 本文介绍了一种补偿数据传输线路中的差分线偏移的新方法。

公开(公告)号：US07031456B2

公开(公告)日：2006-04-18

申请号：US10923321

申请日：2004-08-20

申请人： Kenneth C. Dyer ,  Hiroshi Takatori

发明人： Kenneth C. Dyer ,  Hiroshi Takatori

IPC分类号： H04M7/04

CPC分类号： H03M1/1009 ,  H03H7/40 ,  H03M1/0678 ,  H03M1/66 ,  H04L5/1423 ,  H04L25/0278

摘要： A hybrid system with adjustable on-chip components and a method calibrating the same invariably maximizes hybrid performance despite of on- and off-chip component mismatches and imperfections. The hybrid system has a main DAC, a replica DAC, and three or four resistors. Both DACs are directly connected to digital data. An adjustable resistor is connected to the main DAC and is calibrated such that output impedance is automatically adjusted to match an off-chip load impedance Z. A replica DAC current K is calibrated for optimum DC matching in presence of Z. An adjustable capacitor C2 is calibrated for slope-matching (bandwidth matching). If Z changes, the calibration procedure should be repeated for optimal performance. These three calibration mechanisms can be utilized individually or in combination. The present invention is compatible with both analog and digital echo-cancellers.

摘要翻译： 具有可调节片上组件的混合系统和校准该方法的方法总是使混合性能最大化，尽管片外组件不匹配和缺陷。 混合系统具有主DAC，复制DAC和三个或四个电阻器。 两个DAC都直接连接到数字数据。 可调电阻器连接到主DAC，并被校准，使得输出阻抗被自动调整以匹配片外负载阻抗Z.复制DAC电流K被校准用于存在Z时的最佳DC匹配。可调电容器C 2 被校准用于斜率匹配（带宽匹配）。 如果Z改变，则应重复校准程序以获得最佳性能。 这三种校准机构可以单独使用或组合使用。 本发明与模拟和数字回波消除器兼容。

公开(公告)号：US20050074055A1

公开(公告)日：2005-04-07

申请号：US10959622

申请日：2004-10-05

申请人： Hiroshi Takatori ,  Kenneth Dyer ,  Mark Callicotte

发明人： Hiroshi Takatori ,  Kenneth Dyer ,  Mark Callicotte

IPC分类号： H04B1/58 ,  H04B3/32 ,  H04B1/38

CPC分类号： H04B3/32 ,  H04B1/58

摘要： The present invention effectively cancels echo, near-end crosstalk and far-end crosstalk. A FEXT canceller is placed at the transmitter rather than at the receiver according to an aspect of the invention. In some embodiment, a FEXT canceller can be placed at the receiver only or the combination of both ends. The FEXT canceller is continuously adapted with information sent back from a remote receiver and with data from a neighbor transmitter that causes the crosstalk at the remote receiver. This allows the FEXT canceller to quickly adapt to a change in crosstalk function or conditions with the surrounding environment, for example, aging, temperature, humidity, physical pressure, etc. In some embodiments, an adaptation control signal is sent back from the receiver to the transmitter by using an overhead bit in the frame format. In some embodiments, part of the FEXT canceller is built-in at the remote receiver.

摘要翻译： 本发明有效地消除了回波，近端串扰和远端串扰。 根据本发明的一个方面，FEXT消除器被放置在发射器而不是接收器处。 在一些实施例中，FEXT消除器可以仅放置在接收器处或两端的组合。 FEXT消除器连续地适应从远程接收器发回的信息和来自邻近发射机的数据，这些数据导致远端接收机的串扰。 这允许FEXT消除器快速适应与周围环境（例如老化，温度，湿度，物理压力等）的串扰功能或条件的变化。在一些实施例中，自适应控制信号从接收器发送回 发送器通过使用帧格式的开销位。 在一些实施例中，FEXT消除器的一部分内置在远程接收器中。

公开(公告)号：US20060056502A1

公开(公告)日：2006-03-16

申请号：US10944168

申请日：2004-09-16

申请人： Mark Callicotte ,  Hiroshi Takatori

发明人： Mark Callicotte ,  Hiroshi Takatori

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： 提供了具有作为对应抽头系数C SUB和抽头增益M SUB的产品的抽头权重的自适应横向滤波器。 滤波器控制环控制所有抽头系数C SUB，使得从滤波器输出导出的误差信号最小化。 一个或多个抽头控制回路控制抽头增益M SUB，使得相应的抽头系数C k满足预定的控制条件。 例如，| C＆lt; k＆gt; | 可以受到约束的最大化;其中C max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C SUB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。

公开(公告)号：US08827491B2

公开(公告)日：2014-09-09

申请号：US13809744

申请日：2011-07-13

申请人： Hiroshi Takatori ,  Akinobu Seki ,  Noriyuki Kawahara

发明人： Hiroshi Takatori ,  Akinobu Seki ,  Noriyuki Kawahara

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）。

公开(公告)号：US20120076195A1

公开(公告)日：2012-03-29

申请号：US13312273

申请日：2011-12-06

申请人： Mark Joseph Callicotte ,  Hiroshi Takatori

发明人： Mark Joseph Callicotte ,  Hiroshi Takatori

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。

公开(公告)号：US07188135B2

公开(公告)日：2007-03-06

申请号：US10944470

申请日：2004-09-16

申请人： Hiroshi Takatori ,  James Little ,  Susumu Hara

发明人： Hiroshi Takatori ,  James Little ,  Susumu Hara

IPC分类号： G06G7/02 ,  G06F17/10

CPC分类号： H03H15/023

摘要： A finite impulse response filter having tap weight rotation is provided, where each tap has a corresponding coefficient selector. Each coefficient selector includes N coefficients, where N is the number of taps. Each coefficient selector provides one of its corresponding coefficients as an input to a multiplier. Each multiplier also receives an input from a triggered track and hold tap. The tap coefficients are selected according to the time delay since the corresponding track and hold tap was most recently triggered. In this manner, the tendency of multiplier gain nonuniformity to degrade filter operation in the presence of tap weight rotation is reduced. In another embodiment, an offset selector is provided, to reduce the tendency of component offsets to degrade filter operation in the presence of tap weight rotation.

摘要翻译： 提供了具有抽头权重旋转的有限脉冲响应滤波器，其中每个抽头具有对应的系数选择器。 每个系数选择器包括N个系数，其中N是抽头数。 每个系数选择器提供其相应系数之一作为乘法器的输入。 每个乘法器还从触发轨道接收输入并按住tap。 根据时间延迟选择抽头系数，因为相应的跟踪和保持分接头最近被触发。 以这种方式，在存在抽头重量旋转的情况下，乘法器增益不均匀性降低滤波器操作的趋势被减少。 在另一个实施例中，提供偏移选择器，以减少在存在抽头重量旋转时部件偏移降低过滤器操作的趋势。