公开(公告)号：US20110069964A1

公开(公告)日：2011-03-24

申请号：US12562353

申请日：2009-09-18

Applicant: Jianjun Yu ,  Ting Wang

Inventor： Jianjun Yu ,  Ting Wang

IPC: H04B10/00

CPC classification number: H04B10/90 ,  H04B10/25759

Abstract: An optical wireless network includes an optical coupler for diverting received millimeter-wave signals comprised of an optical carrier and second order sidebands into multiple transmission paths; a downstream optical path being one of the multiple transmission paths and including an optical filter for filtering passing through the optical carrier with a single sideband, a converter for converting the optical carrier and single sideband to a corresponding electrical signal for amplification and broadcast transmission from an antenna; and an upstream path being one of the multiple transmission paths and having a filter for passing through the optical carrier only from the mm-wave signals and an intensity modulator driven by data received over the antenna to modulate the optical carrier for optical transmission to a receiving destination.

Abstract translation: 光无线网络包括用于将接收到的由光载波和二阶边带构成的毫米波信号转换成多个传输路径的光耦合器; 下行光路是多个传输路径之一，并且包括用于通过单个边带通过光载波的滤波器的滤光器，用于将光载波和单边带转换为相应的电信号的转换器，用于放大和广播传输 天线; 并且上游路径是多个传输路径中的一个，并且具有仅从mm波信号通过光载波的滤波器和由天线接收的数据驱动的强度调制器，以将用于光传输的光载波调制到接收 目的地。

公开(公告)号：US20110059705A1

公开(公告)日：2011-03-10

申请号：US12878258

申请日：2010-09-09

Applicant: Ali Tajer ,  Narayan Prasad ,  Xiaodong Wang ,  Sampath Rangrajan

Inventor： Ali Tajer ,  Narayan Prasad ,  Xiaodong Wang ,  Sampath Rangrajan

IPC: H04B1/04

CPC classification number: H04B7/0626 ,  H04B7/022

Abstract: Methods and systems for optimizing the utilities of receiver devices in a wireless communication network are disclosed. Precoder design formulations that maximize a minimum worst-case rate or a worst-case sum rate are described for both full base station cooperation and limited base station cooperation scenarios. In addition, optimal equalizers are also selected to optimize the worst-case sum rate.

Abstract translation: 公开了用于优化无线通信网络中的接收机设备的实用性的方法和系统。 对于完整的基站合作和有限的基站合作情况，都会描述使最小最坏情况速率或最差情况下的总速率最大化的预编码器设计公式。 此外，还选择最佳均衡器来优化最差情况下的和速率。

公开(公告)号：US20110052209A1

公开(公告)日：2011-03-03

申请号：US12694483

申请日：2010-01-27

Applicant: Shalabh Gupta ,  Yue-Kai Huang

Inventor： Shalabh Gupta ,  Yue-Kai Huang

IPC: H04B10/04

CPC classification number: H04B10/541

Abstract: A method of processing data is provided that includes receiving a plurality of binary electronic signals and generating an optical signal by a number of lasers that is equal to or greater than the number of binary electronic signals. The optical signal is generated at one of a plurality of intensity levels, and each intensity level represents a particular combination of bit values for the plurality of binary electronic signals. The optical signal is converted into an electronic signal having the plurality of intensity levels. An apparatus for processing data is provided that includes a plurality of lasers configured to emit light at a plurality of frequencies, and a plurality of modulators configured to receive a plurality of binary electronic signals and to modulate the light emitted by the lasers. An apparatus for transmitting data is provided that includes a photo receiver and an electronic signal generator.

Abstract translation: 提供一种处理数据的方法，包括接收多个二进制电子信号，并通过等于或大于二进制电子信号的数量的多个激光器产生光信号。 光信号以多个强度级中的一个产生，并且每个强度级表示多个二进制电子信号的比特值的特定组合。 光信号被转换为具有多个强度级的电子信号。 提供了一种用于处理数据的装置，其包括被配置为发射多个频率的光的多个激光器，以及被配置为接收多个二进制电子信号并且调制由激光器发射的光的多个调制器。 提供一种用于发送数据的装置，其包括光接收器和电子信号发生器。

公开(公告)号：US20110052201A1

公开(公告)日：2011-03-03

申请号：US12718145

申请日：2010-03-05

Applicant: Philip N. Ji ,  Yoshiaki Aono ,  Hiromitsu Sugahara ,  Ting Wang

Inventor： Philip N. Ji ,  Yoshiaki Aono ,  Hiromitsu Sugahara ,  Ting Wang

IPC: H04J14/02

CPC classification number: H04Q11/0005 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0219

Abstract: In a dense wavelength division multiplexed optical network, an upgradeable, modular, colorless, directionless, reconfigurable add/drop multiplexer having a small form factor. By using wavelength selective switches and couplers, the above features are achieved without the need for photonic cross connects.

Abstract translation: 在密集波分复用光网络中，具有小外形尺寸的可升级，模块化，无色，无方向，可重配置的分插复用器。 通过使用波长选择开关和耦合器，实现了上述特征，而不需要光子交叉连接。

公开(公告)号：US07889808B2

公开(公告)日：2011-02-15

申请号：US11857251

申请日：2007-09-18

Applicant: Narayan Prasad ,  Xiaodong Wang ,  Mohammad Madihian

Inventor： Narayan Prasad ,  Xiaodong Wang ,  Mohammad Madihian

IPC: H04L1/02

CPC classification number: H04L1/0631 ,  H04L5/023 ,  H04L25/0232 ,  H04L27/2649

Abstract: In accordance with the invention, a method includes determining either the number of tones per chunk required to compute per-chunk order responsive to a sub-band bandwidth, a coherence bandwidth and number of chunks, or the number of chunks responsive to a sub-band bandwidth and a coherence bandwidth; determining an order for each chunk; and determining, for each chunk, QR decompositions for all its tones according to the determined order.

Abstract translation: 根据本发明，一种方法包括：响应于子带带宽，相干带宽和块数量，或响应于子带宽的块的数量来确定每个块所需的每个块所需的每个块的个数， 带宽和相干带宽; 确定每个块的顺序; 并且根据确定的顺序为每个块确定其所有音调的QR分解。

公开(公告)号：US20110010693A1

公开(公告)日：2011-01-13

申请号：US12753291

申请日：2010-04-02

Applicant: Vineet Kahlon

Inventor： Vineet Kahlon

IPC: G06F9/44

CPC classification number: G06F11/3608 ,  G06F8/10 ,  G06F9/52 ,  G06F9/524

Abstract: A system and method for model checking of concurrent multi-threaded programs with bounded lock chains includes analyzing individual program threads in a concurrent multi-threaded program to determine sets of reachable states and lock access patterns for bounded lock chains by tracking sets of states reachable from a given set of states and tracking lock acquisitions and releases by maintaining a bi-directional lock causality graph. Analysis results from multiple threads are combined using an acceptance condition of the lock causality graph to determine whether there is a violation of a correctness property in the concurrent multi-threaded program.

Abstract translation: 用于具有有界锁链的并行多线程程序的模型检查的系统和方法包括分析并发多线程程序中的各个程序线程以通过跟踪可到达的状态集合来确定可达状态的集合并锁定有界锁链的访问模式 一组给定的状态，并通过维持一个双向锁因果关系曲线追踪锁的获取和释放。 来自多个线程的分析结果使用锁因果关系图的接受条件进行组合，以确定并发多线程程序中是否存在违反正确性的行为。

公开(公告)号：US20100330928A1

公开(公告)日：2010-12-30

申请号：US12825693

申请日：2010-06-29

Applicant: Narayan Prasad ,  Kishore Ramachandran

Inventor： Narayan Prasad ,  Kishore Ramachandran

IPC: H04B7/005 ,  H01Q3/00

CPC classification number: H04B7/0695 ,  H04B7/0634 ,  H04B7/0808 ,  H04B7/088

Abstract: Systems and methods for joint training of beam patterns in a system having a transmitter and a receiver. Initial transmit and receive beam pattern vectors are first selected. The beam pattern vectors are perturbed to produce a plurality of perturbed transmit and receive beam pattern vectors. A received signal power between the transmitter and the receiver is estimated for each combination of the perturbed transmit and the perturbed receive beam pattern vectors. The transmit and receive beam pattern vectors having a highest received signal power are applied to the transmitter and the receiver respectively. The perturbation, estimation, and application steps are iterated until the received signal power meets a convergence criterion.

Abstract translation: 用于在具有发射机和接收机的系统中联合训练波束图案的系统和方法。 首先选择初始发射和接收波束图案向量。 波束图案向量被扰动以产生多个扰动的发射和接收波束图案向量。 对于扰动发射和扰动的接收波束图案向量的每个组合，估计发射机和接收机之间的接收信号功率。 具有最高接收信号功率的发射和接收波束图案向量分别被施加到发射机和接收机。 扰动，估计和应用步骤被迭代，直到接收到的信号功率满足收敛标准。

公开(公告)号：US20100329696A1

公开(公告)日：2010-12-30

申请号：US12562260

申请日：2009-09-18

Applicant: Jianjun Yu ,  Ting Wang ,  Dayou Qian

Inventor： Jianjun Yu ,  Ting Wang ,  Dayou Qian

IPC: H04B10/04

CPC classification number: H04B10/5053 ,  H04B10/541

Abstract: An optical transmitter including a dividing optical coupler for dividing a lightwave onto optical paths; a first optical modulator in a first of the optical paths and driven by an I component of a first signal and a I component of a second signal for modulating the lightwave, a DC bias of the first optical modulator being at a quadrature point; a second optical modulator in a second of the optical paths and driven by a Q component of the first signal and a Q component of the second signal for modulating the lightwave, a DC bias of the second optical modulator being at the quadrature point; a phase shifter for generating a 90 degree phase shift in the Q components of the first and second signals that are modulated by the second optical coupler; and a combining optical coupler for combining the modulated lightwave from the first optical coupler and the phase shifted Q components of the first and second signals for generating a quadrature amplitude modulated signal.

Abstract translation: 一种光发射机，包括用于将光波分解成光路的分光光耦合器; 在第一光路中的由第一信号的I分量和用于调制光波的第二信号的I分量驱动的第一光调制器，第一光调制器的DC偏置处于正交点; 在第二光路中的第二光调制器，由第一信号的Q分量和第二信号的Q分量驱动，用于调制光波，第二光调制器的DC偏置处于正交点; 移相器，用于产生由第二光耦合器调制的第一和第二信号的Q分量中的90度相移; 以及组合光耦合器，用于组合来自第一光耦合器的调制光波和用于产生正交幅度调制信号的第一和第二信号的相移Q分量。

公开(公告)号：US20100310258A1

公开(公告)日：2010-12-09

申请号：US12716442

申请日：2010-03-03

Applicant: Chonggang Wang ,  Ting Wang

Inventor： Chonggang Wang ,  Ting Wang

IPC: H04B10/00

CPC classification number: H04W40/02 ,  H04Q11/0062 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04W84/18

Abstract: A network includes an optical sensor network; and a radio frequency (RF) wireless sensor network coupled to the optical sensor network, wherein the optical sensor network and the RF wireless sensor network communications are coordinated over both optical and wireless links.

Abstract translation: 网络包括光传感器网络; 以及耦合到所述光学传感器网络的射频（RF）无线传感器网络，其中所述光学传感器网络和所述RF无线传感器网络通信在光学和无线链路两者上协调。

公开(公告)号：US20100310257A1

公开(公告)日：2010-12-09

申请号：US12701175

申请日：2010-02-05

Applicant: Chonggang Wang ,  Ting Wang

Inventor： Chonggang Wang ,  Ting Wang

IPC: H04B10/00

CPC classification number: H04W40/02 ,  H04Q11/0062 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04W84/18

Abstract: For each path in a first plurality of paths in said communication network, a respective first weighted path length is determined based at least in part on a number of pure wireless links in the path. From among the first plurality of paths, a second plurality of paths having first weighted path lengths less than a threshold value is selected. For each path in the second plurality, a respective second weighted path length is determined based at least in part on a number of pure optical links in the path, and from among the second plurality of paths, a transmission path is selected having a highest second weighted path length. Information is transmitted via the transmission path.

Abstract translation: 对于所述通信网络中的第一多个路径中的每个路径，至少部分地基于路径中的纯无线链路的数量来确定相应的第一加权路径长度。 从第一多个路径中选择具有小于阈值的第一加权路径长度的第二多个路径。 对于第二多个中的每个路径，至少部分地基于路径中的纯光链路的数量来确定相应的第二加权路径长度，并且从第二多个路径中选择具有最高秒的传输路径 加权路径长度。 通过传输路径发送信息。