公开(公告)号：US6167082A

公开(公告)日：2000-12-26

申请号：US33770

申请日：1998-03-03

申请人： Stanley K. Ling ,  Ping An ,  Hiroshi Takatori

发明人： Stanley K. Ling ,  Ping An ,  Hiroshi Takatori

IPC分类号： H04L25/03 ,  H03K5/159 ,  H03H5/00

CPC分类号： H04L25/4975 ,  H04L25/03057 ,  H04L25/03343 ,  H04L2025/037

摘要： Adaptive equalization methods and adaptive equalizers used with precoded systems dominated by intersymbol interference (ISI) monitor the output of a DFE and compare it to a reference for updating a precoder in response to the comparison. To accomplish this, an adaptive equalizer includes a feed forward equalizer receiving a signal from a communication channel, the feed forward equalizer equalizing variations in pre-cursor intersymbol interference resulting from changes in characteristics of the channel and providing an output signal to an error correction decoder, a decision circuit, coupled to the feed forward equalizer, for generating error vectors in response to the output signal of the feed forward equalizer and a decision feedback equalizer, coupled to the decision circuit, the decision feedback equalizer monitoring the pre-cursor intersymbol interference of the channel, determining when the transmitter coefficients to the precoder warrant updating, and generating a signal indicating that an update to the transmitter coefficients to the precoder is warranted. The adaptive equalizer farther includes a comparison circuit, the comparison circuit receiving an output from the decision feedback equalizer and comparing the output from the decision feedback equalizer to a reference, the comparison circuit generating the signal indicating that an update to the transmitter coefficients to the precoder is warranted in response to the comparison.

摘要翻译： 与由符号间干扰（ISI）支配的预编码系统一起使用的自适应均衡方法和自适应均衡器监视DFE的输出，并将其与用于响应于比较更新预编码器的参考进行比较。 为了实现这一点，自适应均衡器包括接收来自通信信道的信号的前馈均衡器，前馈均衡器均衡由信道特性变化引起的前置符号间干扰的变化，并向纠错解码器提供输出信号 耦合到所述前馈均衡器的响应于所述前馈均衡器的输出信号的误差向量的决定电路和耦合到所述判定电路的判决反馈均衡器，所述判决反馈均衡器监视所述前标符号间干扰 确定到预编码器的发射机系数何时更新，并且产生指示对预编码器对发射机系数的更新的信号是有必要的。 所述自适应均衡器还包括比较电路，所述比较电路接收所述判决反馈均衡器的输出，并将所述判决反馈均衡器的输出与参考值进行比较，所述比较电路产生指示对所述预编码器对所述发射机系数的更新的信号 有必要回应比较。

公开(公告)号：US4868874A

公开(公告)日：1989-09-19

申请号：US38938

申请日：1987-04-16

申请人： Hiroshi Takatori ,  Motohiro Kokumai ,  Tatsuko Shinozuka

发明人： Hiroshi Takatori ,  Motohiro Kokumai ,  Tatsuko Shinozuka

IPC分类号： H04B1/52 ,  H04B3/23

CPC分类号： H04B3/231 ,  H04B1/525 ,  H04B3/238

摘要： An echo canceller which cancels an echo by generating a replica of echo from the transmit data when the signal from the transmit line appears as an echo signal on the receive line, and subtracting the replica of echo from the echo signal in a circuit for connecting a transmit line and receive line to the full duplex transmission line through a hybrid circuit. The echo canceller for generating a replica of echo is composed of the first circuit which generates a replica of echo of limited length and a second circuit in which generates a replica of echo for eliminating the residual echo that is not cancelled by the first circuit.

摘要翻译： 一种回波消除器，当来自发送线的信号作为接收线路上的回波信号产生来自发送数据的回波的复制品时，其消除回波，并且在用于连接发送线路的电路中从回波信号中减去回波的副本 传输线路和接收线路通过混合电路到全双工传输线路。 用于产生回波副本的回波消除器由产生有限长度的回波副本的第一电路和第二电路组成，其中产生用于消除不被第一电路取消的残留回波的回波副本。

公开(公告)号：US20150256360A1

公开(公告)日：2015-09-10

申请号：US14589872

申请日：2015-01-05

申请人： Hiroshi Takatori ,  Albert Vareljian ,  Oleksiy Zabroda

发明人： Hiroshi Takatori ,  Albert Vareljian ,  Oleksiy Zabroda

IPC分类号： H04L25/03 ,  H04B3/32 ,  H03H21/00 ,  H04L1/00

CPC分类号： H04L25/03038 ,  H03H11/26 ,  H03H11/46 ,  H03H15/02 ,  H03H21/0001 ,  H04B3/32 ,  H04L1/0047 ,  H04L25/03057 ,  H04L25/03133 ,  H04L25/03343 ,  H04L2025/03477 ,  H04L2025/0349 ,  H04L2025/03503 ,  H04L2025/03598

摘要： According to an embodiment of the disclosure, a communication transmitter and receiver include an adaptive filter and a decision feedback equalizer as well as cross-talk cancellers. The adaptive filter is configured to receive an input signal and includes a continuous analog delay circuit with a plurality of Padé-based delay elements.

摘要翻译： 根据本公开的实施例，通信发射机和接收机包括自适应滤波器和判决反馈均衡器以及串扰消除器。 自适应滤波器被配置为接收输入信号并且包括具有多个基于Padé的延迟元件的连续模拟延迟电路。

公开(公告)号：US08926156B2

公开(公告)日：2015-01-06

申请号：US13813830

申请日：2011-07-29

申请人： Akinobu Seki ,  Hiroshi Takatori ,  Kyouhei Yamada ,  Masato Nakamura ,  Masayo Takizawa ,  Noriyuki Kawahara

发明人： Akinobu Seki ,  Hiroshi Takatori ,  Kyouhei Yamada ,  Masato Nakamura ,  Masayo Takizawa ,  Noriyuki Kawahara

IPC分类号： F21V13/08 ,  F21V7/00 ,  F21V5/04 ,  F21V13/02 ,  F21V5/02 ,  F21V17/06 ,  F21V17/16 ,  G02B19/00 ,  F21Y101/02 ,  H01L33/58

CPC分类号： F21V13/08 ,  F21V5/02 ,  F21V5/04 ,  F21V7/00 ,  F21V7/0091 ,  F21V13/02 ,  F21V17/06 ,  F21V17/164 ,  F21Y2115/10 ,  G02B7/022 ,  G02B19/0028 ,  G02B19/0047 ,  G02B19/0061 ,  H01L33/58

摘要： A light-emitting device combining a first luminous flux control member having a total reflection surface and emitting light from an emission surface in a narrow angle range centered mainly on an optical axis, and a second luminous flux control member arranged to surround the total reflection surface of the first luminous flux control member. The second luminous flux control member (102) of the light-emitting device is provided with a second incidence surface (126a) and a second emitting surface (126b). Of the light emitted from the light-emitting element (200), the light incident to the second incidence surface (126a) is within a range of angles θ larger than a largest angle to the optical axis of the light incident to the first luminous flux control member (101). The second emitting surface (126b) controls the light incident to the second incidence surface (126a) to have light distribution characteristics different from those of the light emitted from the first luminous flux control member (101), and emits the light.

摘要翻译： 一种发光装置，其组合具有全反射面的第一光束控制构件和以主要以光轴为中心的窄角度范围的发射面发射光;以及第二光束控制构件，被配置为包围全反射面 的第一光束控制构件。 发光装置的第二光束控制构件（102）设置有第二入射面（126a）和第二发射面（126b）。 从发光元件（200）发射的光中，入射到第二入射面（126a）的光在角度＆amp; 大于入射到第一光束控制构件（101）的光的光轴的最大角度。 第二发射表面（126b）控制入射到第二入射表面（126a）的光具有与从第一光束控制构件（101）发射的光不同的光分布特性，并发射光。

公开(公告)号：US08882307B2

公开(公告)日：2014-11-11

申请号：US13328654

申请日：2011-12-16

申请人： Hiroshi Takatori

发明人： Hiroshi Takatori

IPC分类号： F21V5/00 ,  F21V5/04 ,  F21Y101/02 ,  F21Y103/00 ,  F21S4/00

CPC分类号： F21V5/008 ,  F21S4/008 ,  F21S4/28 ,  F21V5/04 ,  F21Y2101/02 ,  F21Y2103/003 ,  F21Y2103/10 ,  F21Y2115/10 ,  Y10S362/80

摘要： A light emitting device that can reduce the illuminance unevenness on an illuminated surface. First light flux controlling member 103 controls the distribution of light emitted from light emitting element 102. Second light flux controlling member 105 has second incidence surface 201 onto which the light emitted from first light flux controlling member 103 is incident and second emission surface 202 that is located on a side opposite to second incidence surface 201 and emits the light incident from second incidence surface 201. Also, at least one surface of second incidence surface 201 and second emission surface 202 refracts the light having an optical path on a virtual cross-section including optical axis P1 of light emitting element 102 and being incident onto second incidence surface 201 or second emission surface 202 more to the optical axis P1 side than when being incident onto a plane perpendicular to optical axis P1.

摘要翻译： 一种能够降低被照射面的照度不均匀的发光装置。 第一光束控制构件103控制从发光元件102发射的光的分布。第二光束控制构件105具有第二入射面201，从第一光束控制构件103射出的光入射到第二入射面201，第二射出面202 位于与第二入射表面201相对的一侧，并且发射从第二入射表面201入射的光。另外，第二入射表面201和第二发射表面202的至少一个表面折射具有虚拟横截面上的光路的光 包括发光元件102的光轴P1，并且比入射到垂直于光轴P1的平面时相对于光轴P1侧入射到第二入射面201或第二发射面202上。

公开(公告)号：US20140233217A1

公开(公告)日：2014-08-21

申请号：US14347646

申请日：2012-09-10

申请人： Hiroshi Takatori ,  Masao Yamaguchi

发明人： Hiroshi Takatori ,  Masao Yamaguchi

IPC分类号： F21V13/02 ,  G02F1/1335

CPC分类号： F21V13/02 ,  G02B6/003 ,  G02B6/0031 ,  G02B6/0053 ,  G02B6/0096 ,  G02F1/133602 ,  G09F13/04 ,  G09F13/0409 ,  G09F13/14 ,  G09F2013/049 ,  G09F2013/147

摘要： In a surface light source device (1), a positive reflective region (23) of a reflective member (20) that is disposed on the bottom surface (4) of a housing (2) reflects light output by a light emitting device (14) toward a direction away from the light emitting device (14). As a result, the brightness of the light in the proximity of the light emitting device (14) of the surface shaped illuminating light output by a light emitting surface member (3) can be suppressed, and the brightness of light of a central part (position furthest away from the light emitting device (14)) of the surface shaped illuminating light output by the light emitting surface member (3) can be increased.

摘要翻译： 在表面光源装置（1）中，设置在壳体（2）的底面（4）上的反射构件（20）的正反射区域（23）反射由发光装置（14）输出的光 ）朝向远离发光器件（14）的方向。 结果，可以抑制由发光面部件（3）输出的表面形状的照明光的发光器件（14）附近的光的亮度，并且可以抑制中心部分 可以增加由发光面构件（3）输出的表面形状的照明光的距离发光装置（14）最远的位置。

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：US20130114258A1

公开(公告)日：2013-05-09

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

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）是通过使角度（θ）相对于第一角度区域（-θ1θθθ1）中的具有中心轴线的总线作为旋转轴线旋转而形成的表面 涉及作为与要照射的表面（801a）垂直的截面的交点的总线的横截面，并且包括照明透镜（100）的中心轴，第二发光面部（102b）形成在 角度（θ）的第二角度区域（θ1@ 180°和-180°@θ@-θ1），使得朝向表面（801a）发射的光束与第一发光 表面部分（102a）形成在发光表面部分（102）上的整个角度区域（0°@θ<360°）中，第三发光表面部分（102c）由第一发光表面部分 表面部（102a）和第二发光面部（102b）。

公开(公告)号：US20120155091A1

公开(公告)日：2012-06-21

申请号：US13328654

申请日：2011-12-16

申请人： Hiroshi Takatori

发明人： Hiroshi Takatori

IPC分类号： F21V13/04 ,  F21V5/00

CPC分类号： F21V5/008 ,  F21S4/008 ,  F21S4/28 ,  F21V5/04 ,  F21Y2101/02 ,  F21Y2103/003 ,  F21Y2103/10 ,  F21Y2115/10 ,  Y10S362/80

摘要： A light emitting device that can reduce the illuminance unevenness on an illuminated surface. First light flux controlling member 103 controls the distribution of light emitted from light emitting element 102. Second light flux controlling member 105 has second incidence surface 201 onto which the light emitted from first light flux controlling member 103 is incident and second emission surface 202 that is located on a side opposite to second incidence surface 201 and emits the light incident from second incidence surface 201. Also, at least one surface of second incidence surface 201 and second emission surface 202 refracts the light having an optical path on a virtual cross-section including optical axis P1 of light emitting element 102 and being incident onto second incidence surface 201 or second emission surface 202 more to the optical axis P1 side than when being incident onto a plane perpendicular to optical axis P1.

摘要翻译： 一种能够降低被照射面的照度不均匀的发光装置。 第一光束控制构件103控制从发光元件102发射的光的分布。第二光束控制构件105具有第二入射面201，从第一光束控制构件103射出的光入射到第二入射面201，第二射出面202 位于与第二入射表面201相对的一侧，并且发射从第二入射表面201入射的光。另外，第二入射表面201和第二发射表面202的至少一个表面折射具有虚拟横截面上的光路的光 包括发光元件102的光轴P1，并且比入射到垂直于光轴P1的平面时相对于光轴P1侧入射到第二入射面201或第二发射面202上。

公开(公告)号：US08107581B2

公开(公告)日：2012-01-31

申请号：US12006831

申请日：2008-01-03

申请人： James M. Little ,  Hiroshi Takatori

发明人： James M. Little ,  Hiroshi Takatori

IPC分类号： H03D3/24

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 digitally controlling a timing recovery loop to control jitter and reduce word-length in a recovered clock is provided. A timing error detector provides an output identifying the error sign. First and second randomizing digital attenuators provide first and second estimates of the phase error in a timing signal. A controller receives the first estimate and provides a signal to an NCO. An output from the NCO provides feedback to the error detector to complete a first order feedback loop, providing a first estimate phase error compensation. An integrator receives the second estimate and provides an output estimate for frequency offset of the timing signal that is received by the controller and the sign and magnitude of the integrated phase error are calibrated to provide a frequency offset. The controller determines a number of additional updates to the NCO required to minimize jitter and reduce word-length.

摘要翻译： 提供了一种数字控制定时恢复环路以控制抖动并减少恢复时钟中的字长的方法。 定时误差检测器提供识别错误符号的输出。 第一和第二随机数字衰减器提供定时信号中的相位误差的第一和第二估计。 控制器接收第一估计并向NCO提供信号。 来自NCO的输出向误差检测器提供反馈以完成一阶反馈回路，提供第一估计相位误差补偿。 积分器接收第二估计并提供对由控制器接收的定时信号的频率偏移的输出估计，并且对积分相位误差的符号和幅度进行校准以提供频率偏移。 控制器确定了为了最小化抖动和减少字长所需的NCO的额外更新数量。