会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • METHOD AND APPARATUS FOR CHECKING AND SYNCHRONIZING DATA BLOCK IN DISTRIBUTED FILE SYSTEM
    • 在分布式文件系统中检查和同步数据块的方法和装置
    • US20120084379A1
    • 2012-04-05
    • US13376622
    • 2009-12-08
    • Jie PengNing ChengChong WangJianbo XiaBo Zhang
    • Jie PengNing ChengChong WangJianbo XiaBo Zhang
    • G06F15/16
    • G06F16/184
    • A method and apparatus for checking and synchronizing data blocks in a distributed file system are provided. The distributed file system includes a metadata server, data block servers and a storage medium; the metadata server specifies one of the data block servers in the same group as a master data block server, while takes the others as slave data block servers. The method includes: the metadata server initiating a data block checking request to the master data block server; the master data block server checking all the data block information managed by the slave data block servers in the group, synchronizing according to the checking result, and then reporting the checking and synchronization results to the metadata server; the metadata server updates the metadata information according to the reported checking and synchronization results. Therefore, the metadata server only takes very little time to fulfill the checking and synchronizing the database.
    • 提供了一种用于在分布式文件系统中检查和同步数据块的方法和装置。 分布式文件系统包括元数据服务器,数据块服务器和存储介质; 元数据服务器指定与主数据块服务器相同的组中的数据块服务器之一,而将其他数据块服务器作为从数据块服务器。 该方法包括:元数据服务器向主数据块服务器发起数据块检查请求; 主数据块服务器检查由组内的从属数据块服务器管理的所有数据块信息,根据检查结果进行同步,然后将检查和同步结果报告给元数据服务器; 元数据服务器根据报告的检查和同步结果更新元数据信息。 因此,元数据服务器只需要很少的时间才能完成对数据库的检查和同步。
    • 2. 发明申请
    • Distributed file system supporting data block dispatching and file processing method thereof
    • 分布式文件系统支持数据块调度及其文件处理方法
    • US20110307534A1
    • 2011-12-15
    • US13202966
    • 2009-11-26
    • Jie PengChong WangNing ChengBo ZhangJianbo Xia
    • Jie PengChong WangNing ChengBo ZhangJianbo Xia
    • G06F17/30G06F15/16
    • H04N21/4722G06F16/1834H04N21/23109H04N21/23116
    • A distributed file system and a file processing method thereof are disclosed. The distributed file system comprises at least two file nodes (1, 2, . . . , n), and each file node comprises a metadata server (12, 22, . . . , n2), a file access client (11, 21, . . . , n1), a file access server (13, 23, . . . , n3) and a storage medium (14, 24, . . . , n4), and file nodes can access each other. The file processing method comprises the steps of: storing different files in each file node in a scattered way; for each file node, users of the current file node firstly accessing metadata/valid data of a required file in the file node through the file access client of the file node; if the metadata/valid data of the required file are not found in the file node, the users access other nodes through the file access clients. The present invention effectively solves the problem that a metadata server is easy to become a performance bottleneck when a great number of users access hot data concurrently, and can furthest release the storage space of some file nodes by the file processing methods, such as data block dispatching and data block aging, thereby is greatly increasing the utilization ratio.
    • 公开了一种分布式文件系统及其文件处理方法。 所述分布式文件系统包括至少两个文件节点(1,2,...,n),并且每个文件节点包括元数据服务器(12,22,...,n2),文件访问客户端(11,21 ,...,n1),文件访问服务器(13,23,...,n3)和存储介质(14,24,...,n4),并且文件节点可以彼此访问。 文件处理方法包括以下步骤:以分散的方式在每个文件节点中存储不同的文件; 对于每个文件节点,当前文件节点的用户首先通过文件节点的文件访问客户端访问文件节点中所需文件的元数据/有效数据; 如果在文件节点中找不到所需文件的元数据/有效数据,则用户通过文件访问客户端访问其他节点。 本发明有效地解决了当大量用户同时访问热数据时元数据服务器容易成为性能瓶颈的问题,并且可以通过文件处理方法(例如数据块)最大程度地释放一些文件节点的存储空间 调度和数据块老化,从而大大提高了利用率。
    • 4. 发明授权
    • Passive optical networks with mode coupling receivers
    • 具有模式耦合接收器的无源光网络
    • US08515278B2
    • 2013-08-20
    • US12606872
    • 2009-10-27
    • Ning ChengFrank J. Effenberger
    • Ning ChengFrank J. Effenberger
    • H04J14/04H04J4/00H04J14/02G02B6/255
    • H04J14/02G02B6/12004G02B6/4206G02B6/421H04B10/2581H04B10/272H04J14/0282H04J14/04
    • An apparatus comprising a mode coupler configured to couple a plurality optical signals into a plurality of modes, and a receiver coupled to the mode coupler and configured to detect the modes to obtain the optical signals, wherein the optical signals are coupled from single mode fibers. Also disclosed is an apparatus comprising a plurality of single mode waveguides configured to transport a plurality of single mode signals, and a detector coupled to the single mode waveguides and configured to detect the single mode signals, wherein the single mode signals are substantially coupled without loss from the single mode waveguides to the detector. Also disclosed is a method comprising receiving a plurality of single mode optical channels, coupling the single mode optical channels into a multimode channel, and detecting the optical modes corresponding to the channels in the multimode channel.
    • 一种装置,包括配置成将多个光信号耦合到多个模式的模耦合器,以及耦合到模耦合器并被配置为检测模式以获得光信号的接收器,其中光信号从单模光纤耦合。 还公开了一种包括被配置为传输多个单模信号的多个单模波导的装置,以及耦合到单模波导并被配置为检测单模信号的检测器,其中单模信号基本上耦合而没有损耗 从单模波导到检测器。 还公开了一种方法,包括接收多个单模光信道,将单模光信道耦合到多模信道中,以及检测对应于多模信道中的信道的光模。
    • 6. 发明申请
    • Creation Method of Multimedia Service and System Thereof
    • 多媒体服务及其制度创造方法
    • US20120023239A1
    • 2012-01-26
    • US13259362
    • 2009-08-26
    • Jianming FanNing ChengPengcheng Li
    • Jianming FanNing ChengPengcheng Li
    • G06F15/16
    • H04L65/4076H04L65/1069H04L65/608
    • The present invention relates to a method for creating multimedia services comprising: creating a signaling link between the first node and the second node; and the second node negotiating multimedia with the first node via the signaling link to establish a media channel for transmitting stream of the multimedia services and complete creation of the multimedia services at the second node. The present invention also relates to a system for creating multimedia services. Therefore, the present invention allows the signaling link between the first node and the second node to be established and to be used for multimedia negotiation to create the media channel and complete the creation of the multimedia services at the second node so as to implement the unified creation of the multimedia services and simplify the scheduling of the multimedia stream.
    • 本发明涉及一种创建多媒体业务的方法,包括:在第一节点和第二节点之间建立信令链路; 以及所述第二节点经由所述信令链路与所述第一节点协商多媒体以建立用于发送所述多媒体服务的流的媒体信道,并且在所述第二节点处完成所述多媒体服务的创建。 本发明还涉及一种用于创建多媒体业务的系统。 因此,本发明允许建立第一节点和第二节点之间的信令链路,并用于多媒体协商以创建媒体信道,并在第二节点完成多媒体业务的创建,从而实现统一的 创建多媒体业务,简化多媒体流的调度。
    • 7. 发明申请
    • Power Saving in Passive Optical Networks Using Dynamic Data Rate Scaling
    • 使用动态数据速率缩放对被动光网络进行节能
    • US20120008937A1
    • 2012-01-12
    • US13178192
    • 2011-07-07
    • Ning ChengFrank Effenberger
    • Ning ChengFrank Effenberger
    • H04J14/04H04B10/08
    • H04J14/00H04B10/272H04B10/671H04Q11/0067H04Q2011/0079
    • An Optical Network Unit (ONU) in a Passive Optical Network (PON), the ONU comprising: a receiver module configured to receive a first rate selection signal from an optical line terminal (OLT) that indicates a reduced rate mode, and a component comprised within the receiver module, the component configured to transition from a normal operation mode to the reduced rate mode in response to the receiver module receiving the first rate selection signal, wherein operating in the normal operation mode comprises receiving a downstream signal from the OLT at a nominal data rate, and wherein operating in the reduced rate mode comprises receiving the downstream signal from the OLT at a reduced data rate that is less than the nominal data rate but greater than zero.
    • 一种无源光网络(PON)中的光网络单元(ONU),所述ONU包括:接收机模块,被配置为从指示降低速率模式的光线路终端(OLT)接收第一速率选择信号,以及包括 在所述接收机模块内,所述组件被配置为响应于所述接收机模块接收到所述第一速率选择信号而从正常操作模式转换到所述降低速率模式,其中在所述正常操作模式下操作包括:在所述接收机模块中接收来自所述OLT的下行信号 标称数据速率,并且其中以降低速率模式操作包括以小于标称数据速率但大于零的减小的数据速率从OLT接收下行信号。
    • 10. 发明申请
    • Coupled Seed Light Injection for Wavelength Division Multiplexing Passive Optical Networks
    • 用于波分复用无源光网络的耦合种子光注入
    • US20110091210A1
    • 2011-04-21
    • US12901131
    • 2010-10-08
    • Ning Cheng
    • Ning Cheng
    • H04B10/20H04J14/00
    • H04J14/02H04J3/1694
    • An apparatus comprising a first optical transmitter configured to couple to a second optical transmitter, a first optical receiver, and a seed light source, wherein the first optical transmitter and the first optical receiver are part of a first passive optical network (PON) and the second optical transmitter and a second optical receiver are part of a second PON, and wherein at least one of the first optical transmitter and the second optical transmitter is an injection locked laser transmitter. Also disclosed is a method comprising feeding a seed light to a plurality of injection locked laser transmitters in a plurality of PONs using only one broadband light source (BLS), wherein each PON comprises an optical line terminal (OLT) transmitter and a plurality of optical network units (ONUs) transmitters.
    • 一种装置,包括被配置为耦合到第二光发射机,第一光接收机和种子光源的第一光发射机,其中第一光发射机和第一光接收机是第一无源光网络(PON)的一部分,并且 第二光发射机和第二光接收机是第二PON的一部分,并且其中第一光发射机和第二光发射机中的至少一个是注入锁定激光发射机。 还公开了一种方法,其包括使用仅一个宽带光源(BLS)将种子光馈送到多个PON中的多个注入锁定的激光发射机,其中每个PON包括光线路终端(OLT)发射机和多个光 网络单元(ONU)发射机。