公开(公告)号：US20110282883A1

公开(公告)日：2011-11-17

申请号：US13125684

申请日：2010-03-26

Applicant: Yongqiang Liu ,  Yong Xia ,  Yan Hu ,  Quan Huang

Inventor： Yongqiang Liu ,  Yong Xia ,  Yan Hu ,  Quan Huang

IPC: G06F17/30

CPC classification number: G06F16/1837

Abstract: An indexing server of a P2P network and a method therefor are provided. The indexing server comprises: a metadata storage unit, which stores one or more entries, each of which is associated with a data file and includes a plurality of information items each indicating a node offering the data file and a location of the node; and a node information managing unit, which monitors the metadata storage unit to identify an entry stored in the metadata storage unit in which the number of information items exceeds a threshold, and transfers a portion of the information items included in the identified entry to another server, the transferred portion including as many as possible such information items that indicate nodes whose locations are close to each other.

Abstract translation: 提供P2P网络的索引服务器及其方法。 索引服务器包括：元数据存储单元，其存储一个或多个条目，每个条目与数据文件相关联，并且包括多个信息项，每个信息项指示提供数据文件的节点和节点的位置; 以及节点信息管理单元，其监视所述元数据存储单元，以识别存储在所述元数据存储单元中的条目，其中所述信息项的数量超过阈值，并将包括在所述识别的条目中的所述信息项的一部分传送到另一个服务器 所传输的部分包括尽可能多的这样的信息项，其指示位置彼此接近的节点。

公开(公告)号：US20100110920A1

公开(公告)日：2010-05-06

申请号：US12569261

申请日：2009-09-29

Applicant: Yongqiang LIU ,  Yong Xia ,  Quan Huang ,  Gang Wang

Inventor： Yongqiang LIU ,  Yong Xia ,  Quan Huang ,  Gang Wang

IPC: H04L12/26

CPC classification number: H04W24/10 ,  H04L43/50 ,  H04W48/08

Abstract: A method used for radio measurement in a communication network is provided. The communication network comprises multiple basic service sets controlled by a core network controller. The method comprises the steps of: the core network controller issuing a measurement request to a communication node working on a service channel; the communication node switching to a non-service channel based on the measurement request; the communication node broadcasting a measurement beacon in the non-service channel and returning to the service channel immediately after the broadcasting; a node in the non-service channel receiving the measurement beacon; and based on the measurement beacon, calculating the received signal strength indicator (RSSI) from the communication node to the node in the non-service channel.

Abstract translation: 提供了一种用于通信网络中的无线电测量的方法。 通信网络包括由核心网络控制器控制的多个基本服务组。 该方法包括以下步骤：核心网络控制器向在业务信道上工作的通信节点发出测量请求; 所述通信节点基于所述测量请求切换到非业务信道; 所述通信节点在所述非业务信道中广播测量信标，并且在所述广播之后立即返回所述服务信道; 所述非业务信道中的节点接收所述测量信标; 并且基于所述测量信标，从所述通信节点计算所述接收信号强度指示符（RSSI）到所述非服务信道中的所述节点。

公开(公告)号：US20100008316A1

公开(公告)日：2010-01-14

申请号：US12498878

申请日：2009-07-07

Applicant: Yongqiang LIU ,  Yanlin Luo ,  Songjie Chen ,  Gang Wang

Inventor： Yongqiang LIU ,  Yanlin Luo ,  Songjie Chen ,  Gang Wang

IPC: H04W72/00 ,  H04J1/16

CPC classification number: H04W72/082

Abstract: There are disclosed a network interference evaluating method, a dynamic channel assignment method and apparatus used in wireless networks. The dynamic channel assignment method used in a wireless network, comprising steps of: calculating each pair of visual delayed time for each pair of basic service sets based on received signal strength indicators, traffic information and rate information, and evaluating an overall network interference under a current channel allocation based on the calculated visual delayed time; constructing an undirected graph so that each basic service set is located at a vertex, and each connection line between each pair of basic service sets has a weight obtained from the pair of visual delayed time for this pair of basic service sets; coloring the undirected graph to get a new channel allocation approach and an optimized minimal overall network interference under this new channel allocation approach; comparing a difference between the evaluated overall network interference under the current channel allocation and the optimized minimal overall network interference with a predetermined threshold; and changing channel allocation for the basic service sets according to the new channel allocation approach if the difference is larger than the predetermined threshold.

Abstract translation: 公开了一种在无线网络中使用的网络干扰评估方法，动态信道分配方法和装置。 一种在无线网络中使用的动态信道分配方法，包括以下步骤：基于接收到的信号强度指示符，业务信息和速率信息，计算每对基本业务集合的每对视觉延迟时间，以及评估一个 基于计算出的视觉延迟时间的当前频道分配; 构造无向图，使得每个基本服务集位于顶点，并且每对基本服务集之间的每个连接线具有从该对基本服务集合的一对视觉延迟时间获得的权重; 着色无向图，以获得新的信道分配方法，并在此新的信道分配方法下优化最小的总体网络干扰; 将当前信道分配下的所评估的总网络干扰与所述优化的最小总网络干扰之间的差与预定阈值进行比较; 以及如果差值大于预定阈值，则根据新的信道分配方法改变基本业务集的信道分配。

公开(公告)号：US07539583B2

公开(公告)日：2009-05-26

申请号：US11201279

申请日：2005-08-10

Applicant: Yonghang Fu ,  Yongqiang Liu ,  Michael J. Darwin

Inventor： Yonghang Fu ,  Yongqiang Liu ,  Michael J. Darwin

IPC: G01N37/00

CPC classification number: G01N21/9501

Abstract: A method for inspecting objects such as semiconductor wafers. A staging platform and an optical platform are arranged so that the object may be staged and its surface scanned by optical equipment situated on the optical platform. During the scanning process, the surface is illuminated with light of a plurality of wavelengths, each strobed at a predetermined rate so that multiple images may be collected using time and frequency multiplexing. The multiple images are stored in a database for analysis, which includes processing selected ones of the multiple images according to one or more algorithms. The defect-detection algorithms used for each object are determined by referenced to a predetermined or calculated defect detection protocol, then a defect mask is created for each pixel in the images that is suspected to be defective. The defect mask is then compared to threshold parameters to determine which if any of the suspected defects should be reported.

Abstract translation: 用于检查诸如半导体晶片的物体的方法。 布置了分段平台和光学平台，使得物体可以通过位于光学平台上的光学设备进行分级和其表面扫描。 在扫描过程中，表面被多个波长的光照射，每个以预定的速率被选通，使得可以使用时间和频率复用来收集多个图像。 多个图像存储在用于分析的数据库中，其包括根据一种或多种算法处理多个图像中的选定的图像。 通过参照预定或计算的缺陷检测协议来确定用于每个对象的缺陷检测算法，然后为怀疑是有缺陷的图像中的每个像素创建缺陷掩码。 然后将缺陷掩模与阈值参数进行比较，以确定是否应报告任何可疑缺陷。