公开(公告)号：US07978975B2

公开(公告)日：2011-07-12

申请号：US12184781

申请日：2008-08-01

申请人： Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

发明人： Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007 ,  H04L5/0037 ,  H04Q2011/0086

摘要： Implementations of the present principles include methods, systems and apparatuses for transmitting data through a sub-carrier multiplexing and orthogonal frequency-division multiple access passive optical network. In accordance with aspects of the present principles, a plurality of optical network units are assigned electrical carrier frequency bandwidths that are narrower than a system capacity bandwidth. Modulation of optical waves transmitted between an optical line terminal and each optical network unit is conducted on different orthogonal sub-carrier frequencies within the assigned bandwidths such that sampling of said orthogonal sub-carrier frequencies is limited to the assigned electrical carrier frequency bandwidths. The waves are thereafter received and demodulated for the extraction of data.

摘要翻译： 本原理的实现包括通过副载波复用和正交频分多址无源光网络传输数据的方法，系统和装置。 根据本原理的方面，多个光网络单元分配比系统容量带宽窄的电载波频率带宽。 在光线路终端和每个光网络单元之间传输的光波的调制在所分配的带宽内的不同正交子载波频率上进行，使得所述正交子载波频率的采样被限制为所分配的电载波频率带宽。 之后接收和解调波以提取数据。

公开(公告)号：US07869711B2

公开(公告)日：2011-01-11

申请号：US11550481

申请日：2006-10-18

申请人： Philip Nan Ji ,  Ting Wang ,  Arthur Dogariu ,  Lei Zhong ,  Osamu Matsuda ,  Yuji Abe

发明人： Philip Nan Ji ,  Ting Wang ,  Arthur Dogariu ,  Lei Zhong ,  Osamu Matsuda ,  Yuji Abe

IPC分类号： H04J14/02 ,  H04J14/00

CPC分类号： H04J14/0227 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213

摘要： A tunable asymmetric interleaver constructed from two symmetric interleavers in series, wherein either or both of the individual symmetric interleavers exhibit a wavelength shifting ability. Advantageously, tunable asymmetric interleavers so constructed provide continuous tunable interleaving ratios from 0:100 to 50:50 to 100:0 and provide attractive upgrade paths for existing and future DWDM networks and applications.

摘要翻译： 由两个对称交织器串联构成的可调谐非对称交织器，其中单个对称交织器中的一个或两个呈现波长移位能力。 有利地，如此构造的可调谐非对称交织器提供从0：100到50:50到100：0的连续可调交织比，并为现有和未来的DWDM网络和应用提供有吸引力的升级路径。

公开(公告)号：US20100309844A1

公开(公告)日：2010-12-09

申请号：US12716462

申请日：2010-03-03

申请人： Chonggang Wang ,  Ting Wang

发明人： Chonggang Wang ,  Ting Wang

IPC分类号： H04W40/00 ,  H04J14/00

CPC分类号： H04W40/02 ,  H04Q11/0062 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04W84/18

摘要： Systems and methods are disclosed for communicating data in an integrated sensor network having one or more nodes coupled to an optical sensor network and a radio frequency wireless sensor network, each node having an optical link and a wireless link. The method includes determining a transmission path having one or more hybrid hops for packet transmission over the optical sensor network and the radio frequency wireless sensor network, each hybrid hop including optical and wireless links between two neighboring nodes; and selecting a set of optical and wireless links for the optical sensor network and the radio frequency wireless sensor network to minimize contiguous wireless links.

摘要翻译： 公开了用于在具有耦合到光学传感器网络和射频无线传感器网络的一个或多个节点的集成传感器网络中传送数据的系统和方法，每个节点具有光链路和无线链路。 该方法包括确定具有一个或多个混合跳的传输路径，用于通过光学传感器网络和射频无线传感器网络进行分组传输，每个混合跳包括两个相邻节点之间的光学和无线链路; 以及为光传感器网络和射频无线传感器网络选择一组光和无线链路，以使连续的无线链路最小化。

公开(公告)号：US20100232795A1

公开(公告)日：2010-09-16

申请号：US12700979

申请日：2010-02-05

申请人： Chonggang Wang ,  Wei Wei ,  Ting Wang

发明人： Chonggang Wang ,  Wei Wei ,  Ting Wang

IPC分类号： H04J14/02 ,  H04L27/28

CPC分类号： H04L5/0007 ,  H04J14/0298 ,  H04L5/0044 ,  H04L5/0064 ,  H04L45/00 ,  H04L45/28 ,  H04L45/306

摘要： Each of a plurality of data flows is classified as having a respective data flow type, and each data flow is assigned to one of a plurality of subcarrier groups, based on the data flow's type, wherein each subcarrier group comprises a respective plurality of subcarriers. First data flows assigned to a first subcarrier group are transmitted exclusively on respective subcarriers in the first subcarrier group, and second data flows assigned to a second subcarrier group are transmitted together on all of the subcarriers in the second subcarrier group.

摘要翻译： 多个数据流中的每一个被分类为具有各自的数据流类型，并且基于数据流的类型将每个数据流分配给多个子载波组中的一个，其中每个子载波组包括相应的多个子载波。 分配给第一子载波组的第一数据流在第一子载波组中的各个子载波上专门发送，并且分配给第二副载波组的第二数据流在第二子载波组中的所有子载波上一起发送。

公开(公告)号：US20100215371A1

公开(公告)日：2010-08-26

申请号：US12392317

申请日：2009-02-25

申请人： Ivan B. Djordevia ,  Lei Xu ,  Ting Wang

发明人： Ivan B. Djordevia ,  Lei Xu ,  Ting Wang

IPC分类号： H04J14/02

CPC分类号： H04L27/2647 ,  H03M13/1102 ,  H03M13/2957 ,  H03M13/31 ,  H03M13/6561 ,  H04B10/2572 ,  H04B10/548 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0066

摘要： A receiver and method are provided. The receiver includes a detector configured to receive polarization multiplexed coded orthogonal frequency division multiplexing input sequences and generate estimates of unknown transmitted symbols in the input sequences for x- and y-polarization channels with respect to laser phase noise and PMD. A demapper coupled to the detector is configured to partially cancel polarization mode dispersion (PMD) in the input sequences by computing symbol probabilities for the estimates with respect to the laser phase noise, and averaging the symbol probabilities with respect to the laser phase noise. One or more low-density parity-check (LDPC) decoders coupled to the demapper are configured to receive bit probabilities derived from the averaged symbol probabilities and output code words based at least on the bit probabilities. The one or more LDPC decoders iteratively provide extrinsic soft information feedback to the demapper to compensate for the PMD.

摘要翻译： 提供接收机和方法。 接收机包括检测器，其被配置为接收偏振复用的编码的正交频分复用输入序列，并且针对相对于激光相位噪声和PMD的x和y偏振通道的输入序列生成未知发射符号的估计。 耦合到检测器的去映射器被配置为通过计算关于激光相位噪声的估计的符号概率，并相对于激光相位噪声来平均符号概率来部分地消除输入序列中的偏振模色散（PMD）。 耦合到解映射器的一个或多个低密度奇偶校验（LDPC）解码器被配置为从至少基于位概率接收从平均符号概率导出的比特概率和输出码字。 一个或多个LDPC解码器向解映射器反复地提供外在的软信息反馈以补偿PMD。

公开(公告)号：US20100215368A1

公开(公告)日：2010-08-26

申请号：US12545159

申请日：2009-08-21

申请人： Dayou Qian ,  Neda Cvijetic ,  Junqiang Hu ,  Ting Wang

发明人： Dayou Qian ,  Neda Cvijetic ,  Junqiang Hu ,  Ting Wang

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0298 ,  H04L25/0216

摘要： Methods and systems for processing communication signals in an Orthogonal Frequency Division Multiple Access (OFDMA)-Passive Optical Network (PON) are disclosed. An optical carrier at a wavelength generated at an optical line terminal (OLT) may be reused by optical network units (ONUs) in the network for upstream transmission of data signals to the OLT. In addition, each ONU may perform carrier suppression to avoid broadband beating noise resulting from the simultaneous transmission of upstream data signals on the same wavelength. Further, the optical source at the OLT used to generate the optical carrier may be reused as a local oscillator for coherent detection of received upstream signals to minimize any frequency offsets.

摘要翻译： 公开了在正交频分多址（OFDMA）无源光网络（PON）中处理通信信号的方法和系统。 在光线路终端（OLT）处生成的波长的光载波可以由网络中的光网络单元（ONU）重新使用，用于向OLT发送数据信号。 此外，每个ONU可以执行载波抑制以避免由于在相同波长上的上行数据信号的同时传输而导致的宽带打扰噪声。 此外，用于生成光载波的OLT处的光源可以重新用作本地振荡器，用于相干检测接收到的上行信号，以使任何频率偏移最小化。

公开(公告)号：US20090308037A1

公开(公告)日：2009-12-17

申请号：US12482523

申请日：2009-06-11

申请人： Ting Wang ,  Chaojie Zhang ,  Shengli Wang ,  Wenchen Song

发明人： Ting Wang ,  Chaojie Zhang ,  Shengli Wang ,  Wenchen Song

IPC分类号： A01D69/08

CPC分类号： A01D34/76 ,  A01D69/08

摘要： The present invention relates to a sliding pulley drive mechanism in cutting platform of lawn mower. An engine for the pulley drive mechanism is fixed to a chassis; a cutting platform is connected to the chassis, and can move up and down in relation to the chassis; a bracket is fixed to the cutting platform; cutting platform drive belts are fitted over the output shaft of the engine, an external spline shaft is fixed to the output shaft of the engine, and a belt pulley with an internal spline is mounted on an external spline shaft; the cutting platform drive belt is mounted on the belt pulley with an internal spline; the lower end of the belt pulley with an internal spline is connected with a shock absorbing bushing, a bearing, and a bearing base plate. The bearing base plate is connected to the bracket. In this invention, with a spline mechanism, the belt pulley on the engine can slide up or down on the output shaft of the engine as the elevation of the cutting platform is adjusted, so that the cutting platform drive belts are kept in the same plane, and therefore the belt service lifespan is elongated.

摘要翻译： 本发明涉及割草机切割平台中的滑轮驱动机构。 用于皮带轮驱动机构的发动机固定在底盘上; 切割平台连接到底盘，并可相对于底盘上下移动; 支架固定在切割平台上; 切割平台驱动带安装在发动机的输出轴上，外花键轴固定在发动机的输出轴上，带有内花键的皮带轮安装在外花键轴上; 切割平台驱动带安装在皮带轮上，内部花键; 具有内花键的皮带轮的下端与减震衬套，轴承和轴承座板连接。 轴承底板连接到支架。 在本发明中，利用花键机构，当调整切割平台的高度时，发动机上的皮带轮可以在发动机的输出轴上上下滑动，使得切割平台驱动皮带保持在同一平面 ，因此带的使用寿命延长。

公开(公告)号：US20090202243A1

公开(公告)日：2009-08-13

申请号：US12371233

申请日：2009-02-13

申请人： Dayou Qian ,  Lei Xu ,  Junqiang Hu ,  Ting Wang

发明人： Dayou Qian ,  Lei Xu ,  Junqiang Hu ,  Ting Wang

IPC分类号： H04J14/06

CPC分类号： H04J14/06 ,  H04B10/61 ,  H04B10/676

摘要： There is provided a method for detecting optical signals comprising employing a photo diode to both directly detect a received optical signal and convert it into an electrical signal for recovery of data bit stream information in the received optical signal, the received optical signal being derived from a separation of two polarization multiplexed optical signals that were combined before being received.

摘要翻译： 提供了一种用于检测光信号的方法，包括采用光电二极管直接检测接收到的光信号并将其转换成用于恢复所接收的光信号中的数据位流信息的电信号，所接收的光信号从 在接收之前组合的两个偏振复用光信号的分离。

公开(公告)号：US20080279556A1

公开(公告)日：2008-11-13

申请号：US12115046

申请日：2008-05-05

申请人： Jianjun Yu ,  Yuanqiu Luo ,  Junqiang Hu ,  Ting Wang

发明人： Jianjun Yu ,  Yuanqiu Luo ,  Junqiang Hu ,  Ting Wang

IPC分类号： H04J14/02

CPC分类号： H04B10/2587 ,  H04J14/0282

摘要： Data is transmitted between a central office and customer premises by a wavelength division multiplex passive optical network. Two laser beams with separate wavelengths are transmitted from the central office to an optical network unit in the customer premises. Both laser beams carry downstream data. One laser beam is intensity modulated by on/off keying. The other laser beam is phase modulated by differential phase shift keying, which maintains a constant optical intensity. The first laser beam is received by a first optical receiver, which demodulates the first downstream data. The second laser beam is split in two. One laser beam is sent to a second optical receiver, which demodulates the second downstream data. The other laser beam is sent to a reflective semiconductor amplifier, which modulates the beam with upstream data and transmits the beam back to a receiver in the central optical system.

摘要翻译： 数据通过波分复用无源光网络在中心局和客户驻地之间传输。 具有分离波长的两个激光束从中心局传输到客户驻地的光网络单元。 两个激光束都携带下行数据。 一个激光束通过开/关键控进行强度调制。 其他激光束通过差分相移键控进行相位调制，保持恒定的光强度。 第一激光束由第一光接收器接收，第一光接收器解调第一下行数据。 第二激光束分为两部分。 一个激光束被发送到第二光接收器，其解调第二下行数据。 另一个激光束被发送到反射半导体放大器，该反射半导体放大器利用上行数据对光束进行调制，并将光束传送回中央光学系统中的接收器。

公开(公告)号：US20080127162A1

公开(公告)日：2008-05-29

申请号：US11606840

申请日：2006-11-29

申请人： Kui Xu ,  Yujie Hu ,  Ting Wang

发明人： Kui Xu ,  Yujie Hu ,  Ting Wang

IPC分类号： G06F9/44 ,  G06F7/00

CPC分类号： G06F9/44505

摘要： A cross-platform configuration system manages configuration information for application software. In one embodiment, a process includes, but is not limited to, storing configuration information in a configuration file using a cross-platform markup language, the configuration information including configuration data associated with the operating environment and user data associated with the application, and configuring the application by accessing the configuration file without using a registry of an operating environment in which the application is running.

摘要翻译： 跨平台配置系统管理应用软件的配置信息。 在一个实施例中，过程包括但不限于使用跨平台标记语言将配置信息存储在配置文件中，所述配置信息包括与所述操作环境相关联的配置数据和与所述应用相关联的用户数据，以及配置 该应用程序通过访问配置文件而不使用运行该应用程序的操作环境的注册表。