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    • 12. 发明申请
    • RANDOM LINEAR CODING APPROACH TO DISTRIBUTED DATA STORAGE
    • 分布式数据存储的随机线性编码方法
    • US20120096124A1
    • 2012-04-19
    • US13267764
    • 2011-10-06
    • Muriel MedardSupratim DebRalf Koetter
    • Muriel MedardSupratim DebRalf Koetter
    • G06F15/16
    • H04L67/1095G06F17/30209H04L67/104
    • A method and computer program product for providing a random linear coding approach to distributed data storage is presented. A file is broken into a plurality of pieces. For every peer (peer means storage-location with limited storage space), the number of coded-pieces the peer can store is determined. Each of the coded-piece is determined by taking random linear combination of all the pieces of the entire file. The associate code-vector is stored for every coded-piece. The file is retrieved by collecting code-vectors and the coded-pieces from the peers and viewing the collected code-vectors as a matrix. When a dimension of the matrix is equal to the number of pieces of the file, the file is recovered using the collection of code vectors in the matrix.
    • 提出了一种用于向分布式数据存储提供随机线性编码方法的方法和计算机程序产品。 文件被分成多个部分。 对于每个对等体(对等体意味着具有有限存储空间的存储位置),确定对等体可以存储的编码的数量。 每个编码片段通过采用整个文件的所有片段的随机线性组合来确定。 为每个编码块存储关联码矢量。 通过收集来自对等体的代码矢量和编码块并以收集的码矢量作为矩阵来检索文件。 当矩阵的维数等于文件的数量时,使用矩阵中的代码向量的集合来恢复文件。
    • 13. 发明授权
    • Random linear coding approach to distributed data storage
    • 随机线性编码方法分布式数据存储
    • US08046426B2
    • 2011-10-25
    • US11026550
    • 2004-12-30
    • Muriel MedardSupratim DebRalf Koetter
    • Muriel MedardSupratim DebRalf Koetter
    • G06F15/16
    • H04L67/1095G06F17/30209H04L67/104
    • A method and computer program product for providing a random linear coding approach to distributed data storage is presented. A file is broken into a plurality of pieces. For every peer (peer means storage-location with limited storage space), the number of coded-pieces the peer can store is determined. Each of the coded-piece is determined by taking random linear combination of all the pieces of the entire file. The associate code-vector is stored for every coded-piece. The file is retrieved by collecting code-vectors and the coded-pieces from the peers and viewing the collected code-vectors as a matrix. When a dimension of the matrix is equal to the number of pieces of the file, the file is recovered using the collection of code vectors in the matrix.
    • 提出了一种用于向分布式数据存储提供随机线性编码方法的方法和计算机程序产品。 文件被分成多个部分。 对于每个对等体(对等体意味着具有有限存储空间的存储位置),确定对等体可以存储的编码的数量。 每个编码片段通过采用整个文件的所有片段的随机线性组合来确定。 为每个编码块存储关联码矢量。 通过收集来自对等体的代码矢量和编码块并以收集的码矢量作为矩阵来检索文件。 当矩阵的维数等于文件的数量时,使用矩阵中的代码向量的集合来恢复文件。
    • 14. 发明申请
    • QOS AWARE MULTI RADIO ACCESS POINT FOR OPERATION IN TV WHITESPACES
    • QOS AWARE多功能无线电接入点,用于在电视机中进行操作
    • US20140112275A1
    • 2014-04-24
    • US14110612
    • 2011-04-08
    • Supratim DebPiyush GuptaKanthi C NVikram Srinivasan
    • Supratim DebPiyush GuptaKanthi C NVikram Srinivasan
    • H04W16/14H04W72/08H04W72/04
    • H04W16/14H04W16/10H04W72/0453H04W72/085H04W72/087
    • QoS aware multi radio access point for operation in TV whitespaces is disclosed. The present invention relates to operation of access points and, particularly, to operation of access points in TV whitespaces. The AP is configured to intelligently choose the radios, determine available whitespaces in the spectrum and allocate radios to the available whitespaces in the spectrum. The method determines clients that need to be serviced by the AP and assigns each client associated with AP to one of the radios. In addition, the method also takes care of QoS requirements for different services and hence every service is addressed to satisfy its QoS requirements. The method ensures that there is maximum utilization of available whitespace spectrum by accounting for the spectrum specific characteristics. The method considers bands for operation are spread across the spectrum and allocates the clients based on the availability of bands throughout the spectrum.
    • 公开了在电视空白中操作的QoS感知多无线接入点。 本发明涉及接入点的操作,特别涉及电视空间中接入点的操作。 AP被配置为智能地选择无线电,确定频谱中的可用空白,并将频谱中的可用空格分配无线电。 该方法确定AP需要服务的客户端,并将与AP关联的每个客户端分配给其中一个无线电。 另外,该方法还可以满足不同业务的QoS要求,从而满足其QoS要求。 该方法通过考虑频谱特性来确保可用空白频谱的最大利用。 该方法将波段的操作分散在频谱上,并根据频谱范围内的频带的可用性来分配客户端。
    • 16. 发明申请
    • RELIABILITY OF TRAVEL TIME ESTIMATION
    • 旅行时间估计的可靠性
    • US20120253647A1
    • 2012-10-04
    • US13498178
    • 2009-10-27
    • Vikram SrinivasanAvhishek ChatterjeeSamik DattaSupratim DebSharad Jaiswal
    • Vikram SrinivasanAvhishek ChatterjeeSamik DattaSupratim DebSharad Jaiswal
    • G08G1/00
    • G08G1/0104
    • A method and system for increasing accuracy in estimating average time taken to travel through a chosen road segment is provided. The method includes determination of time taken by one or more vehicles to travel through the road segments. Further, correlated road segments for which time taken to travel through the correlated road segments is correlated with the time taken to travel through the chosen road segment, are identified. A data repository stores a list of the one or more correlated road segments. Among the correlated road segments, one or more preferred road segments that increases the accuracy in determining the average time taken to travel through the chosen road segment, is determined by at least one processor. Further, the processor estimates the average time taken to travel through the chosen road segment using, data corresponding to time taken to travel through, the preferred road segments and the chosen road segment.
    • 提供了一种用于提高估计通过所选路段所需的平均时间的精度的方法和系统。 该方法包括确定一个或多个车辆行进通过道路段所花费的时间。 此外,识别通过相关道路段行驶的时间的相关路段与通过所选择的道路段所需的时间相关联。 数据存储库存储一个或多个相关道路段的列表。 在相关的道路段中,由至少一个处理器确定增加在确定通过所选道路段所需的平均时间的精度的一个或多个优选道路段。 此外,处理器估计通过所选道路段所需的平均时间,对应于通过所需时间,优选路段和所选路段的数据。
    • 20. 发明申请
    • SYSTEMS AND METHODS FOR BEACONING AND MANAGEMENT IN BANDWIDTH ADAPTIVE WIRELESS NETWORKS
    • 带宽自适应无线网络中的网络和管理系统与方法
    • US20140153503A1
    • 2014-06-05
    • US14008706
    • 2012-03-23
    • Vikram SrinivasanSupratim DebKanthi C NPiyush Gupta
    • Vikram SrinivasanSupratim DebKanthi C NPiyush Gupta
    • H04W28/20
    • H04W28/20H04W16/14H04W72/082
    • Systems and methods for beaconing and management in bandwidth adaptive wireless networks are disclosed. The present invention relates to bandwidth allocation for access points and, more particularly, to bandwidth allocation for access points in wireless networks. The method employs mechanisms for beaconing and management to associate clients with Access Point (AP). The beaconing mechanism allows the client to discover part of the spectrum over which an AP operates efficiently. Periodic beacon messages are sent by AP to the client over the bandwidth of operation of the channel. The client then sends a client association request and gets associated with the AP. Further, critical information is conveyed to the AP in the beacon message. The AP further allocates the client to one of its radios of operation. The system is configured to handle disruptions and switching the AP to different parts of the spectrum during such disruptions.
    • 公开了带宽自适应无线网络中的信标和管理的系统和方法。 本发明涉及接入点的带宽分配,更具体地说,涉及无线网络中接入点的带宽分配。 该方法采用信标和管理机制将客户端与接入点(AP)相关联。 信标机制允许客户端发现AP有效运行的频谱的一部分。 定时信标消息由AP通过信道的操作带宽发送给客户端。 然后,客户端发送客户端关联请求,并与AP关联。 此外,在信标消息中向AP发送关键信息。 AP进一步将客户端分配到其一个无线电操作。 该系统被配置为在这种中断期间处理中断并将AP切换到频谱的不同部分。