公开(公告)号：US20070081645A1

公开(公告)日：2007-04-12

申请号：US11240272

申请日：2005-09-29

申请人： Michael Mills ,  Marius Goldenberg ,  Yan Zhou ,  Jeffrey Whaley

发明人： Michael Mills ,  Marius Goldenberg ,  Yan Zhou ,  Jeffrey Whaley

IPC分类号： H04M15/00

CPC分类号： H04M15/00

摘要： In one embodiment, a subscriber line interface circuit includes circuitry to generate metering pulses for insertion onto a subscriber line. The circuitry includes an audio path and a pulse metering path, where the pulse metering path includes a metering generator to generate a digital sine wave from a plurality of stored values, a first interpolator to interpolate the digital sine wave, a filter to filter the interpolated digital sine wave, and a second interpolator to interpolate the filtered interpolated digital sine wave.

摘要翻译： 在一个实施例中，用户线接口电路包括用于产生用于插入用户线路的计量脉冲的电路。 电路包括音频路径和脉冲测量路径，其中脉冲测量路径包括计量发生器，用于从多个存储值产生数字正弦波，第一内插器来内插数字正弦波，滤波器以对内插进行滤波 数字正弦波和第二内插器来内插经滤波的内插数字正弦波。

公开(公告)号：US20070002957A1

公开(公告)日：2007-01-04

申请号：US11173890

申请日：2005-06-30

申请人： Yan Zhou

发明人： Yan Zhou

IPC分类号： H04K1/10

CPC分类号： H04L1/0054 ,  H04L1/0059 ,  H04L1/0065 ,  H04L27/2608 ,  H04L27/2628 ,  H04L27/265

摘要： A communication apparatus includes a scalable N-point spectral transform block coupled to provide a transformed signal from a discrete multi-tone (DMT) modulated signal carrying digital data. A convolutional decoder is coupled to receive the transformed signal. The convolutional decoder is enabled only if N is less than a first pre-determined threshold. Digital data error decoding is applied if N is less than a second pre-determined threshold. In various embodiments, the convolutional decoder uses trellis coding. The digital data error decoder utilizes Reed-Solomon coding. The first and second pre-determined thresholds may be distinct thresholds. In one embodiment the first and second pre-determined thresholds are the same.

摘要翻译： 通信装置包括可扩展的N点频谱变换块，其被耦合以从承载数字数据的离散多音调（DMT）调制信号提供经变换的信号。 卷积解码器被耦合以接收经变换的信号。 仅当N小于第一预定阈值时，卷积解码器才被使能。 如果N小于第二预定阈值，则应用数字数据错误解码。 在各种实施例中，卷积解码器使用网格编码。 数字数据误差解码器利用里德 - 所罗门编码。 第一和第二预定阈值可以是不同的阈值。 在一个实施例中，第一和第二预定阈值是相同的。

公开(公告)号：US20070002956A1

公开(公告)日：2007-01-04

申请号：US11173880

申请日：2005-06-30

申请人： Yan Zhou

发明人： Yan Zhou

IPC分类号： H04K1/10

CPC分类号： H04L27/265 ,  H04L5/06 ,  H04L25/03006

摘要： A communications apparatus includes a modem coupled to receive digital data as a discrete multi-tone (DMT) modulated signal. The modem scales the N-point spectral transform for demodulation in accordance with at least one of a channel-width, a number of sub-channels, and a bit-rate of the channel. If the chosen metric exceeds a pre-determined threshold, then N=N1. If the chosen metric does not exceed a pre-determined threshold, then N=N2, wherein N1>N2.

摘要翻译： 通信装置包括耦合以将数字数据作为离散多音调（DMT）调制信号接收的调制解调器。 调制解调器根据信道宽度，子信道数量和信道的比特率中的至少一个，对用于解调的N点频谱变换进行缩放。 如果所选择的度量超过预定阈值，则N = N1。 如果所选择的度量不超过预定阈值，则N = N2，其中N1> N2。

公开(公告)号：US20070002327A1

公开(公告)日：2007-01-04

申请号：US11174158

申请日：2005-07-01

申请人： Yan Zhou ,  Matthew Everett

发明人： Yan Zhou ,  Matthew Everett

IPC分类号： G01J3/45 ,  G01B11/02 ,  G01B9/02

CPC分类号： G01J3/10 ,  A61B3/1005 ,  A61B3/102 ,  A61B5/0066 ,  A61B5/0073 ,  G01B9/02004 ,  G01B9/02069 ,  G01B9/02091 ,  G01B2290/45 ,  G01J3/0259 ,  G01J3/4532 ,  G01J2003/1239 ,  G01N21/4795

摘要： The present invention is an alternative Fourier domain optical coherence system (FD-OCT) and its associated method. The system comprises a swept multi-wavelength laser, an optical interferometer and a multi-channel receiver. By employing a multi-wavelength laser, the sweeping range for each lasing wavelength is substantially reduced as compared to a pure swept single wavelength laser that needs to cover the same overall spectral range. The overall spectral interferogram is divided over the individual channels of the multi-channel receiver and can be re-constructed through processing of the data from each channel detector. In addition to a substantial increase in the speed of each axial scan, the cost of invented FD-OCT system can also be substantially less than that of a pure swept source OCT or a pure spectral domain OCT system.

摘要翻译： 本发明是替代的傅里叶域光学相干系统（FD-OCT）及其相关方法。 该系统包括扫频多波长激光器，光学干涉仪和多通道接收器。 通过采用多波长激光器，与需要覆盖相同总光谱范围的纯扫频单波长激光器相比，每个激光波长的扫描范围显着降低。 整个光谱干涉图在多通道接收机的各个通道上分配，并且可以通过处理来自每个通道检测器的数据来重新构建。 除了每个轴向扫描的速度的显着增加之外，发明的FD-OCT系统的成本也可以显着小于纯扫频源OCT或纯谱域OCT系统的成本。

公开(公告)号：US20060072424A1

公开(公告)日：2006-04-06

申请号：US10933795

申请日：2004-09-03

申请人： Matthew Everett ,  Scott Meyer ,  Yan Zhou

发明人： Matthew Everett ,  Scott Meyer ,  Yan Zhou

IPC分类号： G11B7/135

CPC分类号： A61B3/102 ,  A61B3/1005 ,  G01B9/02012 ,  G01B9/02044 ,  G01B9/02049 ,  G01B9/02069 ,  G01B9/02091 ,  G01B2290/35

摘要： A low cost patterned spinning disk is disclosed for achieving relatively rapid discrete optical phase shifts for an optical beam. The invention is particularly useful in a spectral domain optical coherence tomography system. The disk contains stepped patterns of different heights and/or refractive index distribution such that as it spins, an optical beam passing through or being reflected by the disk will experience different discrete optical phase delays. The disk can be operated as a phase shifter or it can be operated in synchronization with an intensity modulating chopper disk or a direct intensity modulation of the light source. The disk can also contain intensity modulating patterns such that both phase shifting and intensity modulation can be achieved at the same time. Various possible methods are also disclosed for the fabrication of the disk.

摘要翻译： 公开了一种低成本图案旋转盘，用于实现光束的相对快速的离散光学相移。 本发明在频域光学相干断层摄影系统中特别有用。 盘包含不同高度和/或折射率分布的阶梯图案，使得当其旋转时，通过或被盘反射的光束将经历不同的离散光学相位延迟。 磁盘可以作为移相器来操作，或者可以与强度调制斩波盘同步操作，也可以与光源进行直接强度调制。 磁盘还可以包含强度调制模式，使得可以同时实现相移和强度调制。 还公开了用于制造盘的各种可能的方法。

公开(公告)号：US20050213103A1

公开(公告)日：2005-09-29

申请号：US10811748

申请日：2004-03-29

申请人： Matthew Everett ,  Yan Zhou

发明人： Matthew Everett ,  Yan Zhou

IPC分类号： A61B5/00 ,  G01B9/02 ,  G01M11/00 ,  G01N21/47

CPC分类号： G01M11/3181 ,  A61B5/0066 ,  A61B5/0084 ,  G01B9/0201 ,  G01B9/02044 ,  G01B9/02091 ,  G01B2290/40 ,  G01B2290/70 ,  G01N21/4795

摘要： The present invention discloses simple and yet highly efficient configurations of optical coherence domain reflectometry systems. The combined use of a polarizing beam splitter with one or two polarization manipulator(s) that rotate the returned light wave polarization to an orthogonal direction, enables one to achieve high optical power delivery efficiency as well as fixed or predetermined output polarization state of the interfering light waves reaching a detector or detector array, which is especially beneficial for spectral domain optical coherence tomography. In addition, the system can be made insensitive to polarization fading resulting from the birefringence change in the sample and reference arms. Dispersion matching can also be easily achieved between the sample and the reference arm for high resolution longitudinal scanning.

摘要翻译： 本发明公开了光学相干畴反射系统的简单且高效的配置。 将偏振分束器与一个或两个偏振操纵器组合使用，其将返回的光波偏振旋转到正交方向，使得能够实现高的光功率传递效率以及干涉的固定或预定的输出偏振状态 光波到达检测器或检测器阵列，这对于光谱域光学相干断层扫描是特别有益的。 此外，该系统可以对由样品和参考臂中的双折射变化导致的偏振衰落不敏感。 也可以在样品和参考臂之间轻松实现色散匹配，实现高分辨率纵向扫描。

公开(公告)号：US20050141536A1

公开(公告)日：2005-06-30

申请号：US10750420

申请日：2003-12-31

申请人： Yan Zhou

发明人： Yan Zhou

IPC分类号： H04L12/28 ,  H04M11/06

CPC分类号： H04M11/062

摘要： A subscriber line interface circuit apparatus includes a first driver for driving a downstream data signal in a non-voiceband range onto a subscriber line and a second driver for driving a downstream voice signal in a voiceband range onto the subscriber line. The apparatus includes receiver circuitry coupled to provide an upstream data signal and an upstream voice signal from an upstream signal carried by the subscriber line. The first driver and receiver circuitry reside on a same first integrated circuit die.

摘要翻译： 用户线接口电路装置包括用于将非语音频带范围内的下行数据信号驱动到用户线路上的第一驱动器和用于将语音频带范围内的下游语音信号驱动到用户线路上的第二驱动器。 该装置包括接收电路，其被耦合以从用户线路承载的上行信号提供上行数据信号和上行语音信号。 第一驱动器和接收器电路驻留在相同的第一集成电路管芯上。

公开(公告)号：US06895040B2

公开(公告)日：2005-05-17

申请号：US09847187

申请日：2001-05-01

申请人： Yan Zhou

发明人： Yan Zhou

IPC分类号： H04B3/23 ,  H04L27/00 ,  H04M11/06 ,  H04L5/16

CPC分类号： H04B3/23 ,  H04L27/0002 ,  H04M11/062

摘要： An analog front end for communicating discrete multitone modulated signals on a subscriber line includes a transmit block, a receive block, and a hybrid packaged within a same integrated circuit. Upstream data to be transmitted to the subscriber line is pre-processed to eliminate even images. A power spectral density shaping filter subsequently substantially eliminates undesired energy in the upstream data signal. A high pass filter further rejects upstream data from the downstream data signal. The power spectral density filter and the high pass filter enable the use of a first order hybrid network for extracting the downstream data. The analog front end may include an additional analog channel to enable voiceband (e.g., v.90) communication concurrent with non-voiceband (e.g., xDSL) operation. Sample rate conversion is utilized to avoid the use of multiple independent clocks for otherwise incompatible clocking requirements.

摘要翻译： 用于在用户线路上传送离散多音调制信号的模拟前端包括发送块，接收块和封装在同一集成电路内的混合信号。 要发送到用户线路的上行数据被预处理以消除均匀的图像。 功率谱密度整形滤波器随后基本上消除了上游数据信号中的不期望的能量。 高通滤波器进一步拒绝来自下游数据信号的上行数据。 功率谱密度滤波器和高通滤波器使得能够使用一阶混合网络来提取下行数据。 模拟前端可以包括额外的模拟通道，以使得与非话音频带（例如，xDSL）操作同时进行语音频带（例如，v.90）通信。 利用采样率转换来避免使用多个独立时钟，否则不兼容的时钟要求。

公开(公告)号：US06888989B1

公开(公告)日：2005-05-03

申请号：US10310604

申请日：2002-12-04

申请人： Yan Zhou ,  Seng-Tiong Ho

发明人： Yan Zhou ,  Seng-Tiong Ho

IPC分类号： G02B6/12 ,  G02B6/26 ,  G02B6/36 ,  G02B6/42

CPC分类号： G02B6/3636 ,  G02B6/3692 ,  G02B6/423 ,  G02B2006/12176

摘要： A coupling system for photonic integrated circuits and integrated optical waveguides is provided. A recess is formed in a substrate on which one or more integrated optical waveguides are disposed, the recess being located at the desired mounting location of the photonic integrated circuit. At least one end wall of the recess is inclined with respect to a normal to the substrate surface. At least one end face of a photonic integrated circuit is inclined to match the inclined end wall of the recess. The length, width, and depth of the recess are controlled so that inserting the photonic integrated circuit into the recess passively provides both lateral and vertical alignment of the photonic integrated circuit with the integrated optical waveguide(s).

摘要翻译： 提供了一种用于光子集成电路和集成光波导的耦合系统。 在其上设置有一个或多个集成光波导的衬底中形成凹部，凹部位于光子集成电路的期望的安装位置。 凹部的至少一个端壁相对于衬底表面的法线倾斜。 光子集成电路的至少一个端面倾斜以匹配凹部的倾斜端壁。 控制凹槽的长度，宽度和深度，使得将光子集成电路无源地插入凹槽中提供光子集成电路与集成光波导的横向和垂直对准。

公开(公告)号：US06881414B2

公开(公告)日：2005-04-19

申请号：US09998958

申请日：2001-11-01

申请人： Prem Chandar ,  Quynh T. Pham ,  Tak Yu Lam ,  Yan Zhou ,  Ritu Verma ,  Alexander Lips

发明人： Prem Chandar ,  Quynh T. Pham ,  Tak Yu Lam ,  Yan Zhou ,  Ritu Verma ,  Alexander Lips

IPC分类号： A61K8/06 ,  A61K8/30 ,  A61K8/34 ,  A61K8/36 ,  A61K8/37 ,  A61K8/67 ,  A61K8/72 ,  A61K8/81 ,  A61K8/89 ,  A61K8/891 ,  A61K8/90 ,  A61K8/92 ,  A61Q5/00 ,  A61Q19/00 ,  A61Q19/08 ,  A61K31/07 ,  A61K7/00

CPC分类号： A61K8/062 ,  A61K8/345 ,  A61K8/37 ,  A61K8/671 ,  A61K8/8152 ,  A61K8/891 ,  A61Q5/00 ,  A61Q19/00 ,  A61Q19/08 ,  Y10S514/938 ,  Y10S514/939

摘要： A cosmetic composition containing a retinoid and having an improved stability and mildness. Especially preferred compositions also include retinoid boosters and a polyhydric alcohol humectant.

摘要翻译： 含有类视黄醇并具有改善的稳定性和温和性的化妆品组合物。 特别优选的组合物还包括类视色素增强剂和多元醇保湿剂。