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    • 2. 发明授权
    • Method and apparatus for providing a geo-predictive streaming service
    • 用于提供地理预测流服务的方法和装置
    • US08391896B2
    • 2013-03-05
    • US12833747
    • 2010-07-09
    • Igor Danilo Diego CurcioVarun SinghKumar Malamal Vadakital Vinod
    • Igor Danilo Diego CurcioVarun SinghKumar Malamal Vadakital Vinod
    • H04W24/00
    • H04W4/02G01C21/34H04L1/0002H04L1/0014H04L1/0015H04L29/06H04W4/029
    • A method for providing geo-predictive streaming services may include receiving, at a mobile terminal, an indication of network performance parameters associated with a corresponding time and location of a projected route of the mobile terminal, determining, at the mobile terminal, whether a portion of the projected route corresponds to an outage event with respect to data being streamed to the mobile terminal, and, in response to a determination that the outage event corresponds to the portion of the projected route, causing communication of at least one of a geo-predictive next application data unit and an estimated capacity vector to a streaming server to a streaming server providing the data being streamed to cause a modification to a data transmission rate at which data is to be streamed to the mobile terminal. A corresponding computer program product, system and apparatus are also provided.
    • 用于提供地理预测流服务的方法可以包括在移动终端处接收与移动终端的投影路由的对应时间和位置相关联的网络性能参数的指示,在移动终端处确定是否部分 相对于流向移动终端的数据的中断事件对应于中断事件,并且响应于确定中断事件对应于投影路由的部分,导致地理位置信息中的至少一个的通信, 预测下一个应用数据单元,以及向流式传输服务器提供流服务器的估计容量向量,提供正在流式传输的数据,以使数据传输速率被修改,数据传输速率将被传输到移动终端。 还提供了相应的计算机程序产品,系统和装置。
    • 6. 发明授权
    • Method and system for transparent read-write query routing when load balancing databases
    • 负载平衡数据库时透明读写查询路由的方法和系统
    • US09032017B1
    • 2015-05-12
    • US12853650
    • 2010-08-10
    • Varun SinghUday V. SawantPrateek GoelNaresh G. Deshaveni
    • Varun SinghUday V. SawantPrateek GoelNaresh G. Deshaveni
    • G06F15/16G06F15/173G06F17/30
    • G06F17/30194G06F9/46G06F17/30557
    • Roughly described, a database query router is installed transparently in a network between database client systems and a database server cluster. One subset of the servers is designated to handle read queries only and a second subset is designated to handle write queries. The query router receives, through a network port, the database queries made by a client system, and directed to the IP address and port assigned to the query router. The query router determines whether the query is a read or a write query, and forwards read queries to servers in the first subset and write queries to servers in the second subset of servers. By installing the query router transparently in the network, no modifications are required to the software in either the client systems or the database servers in order to add query routing functionality to a client/server database environment.
    • 大致描述,数据库查询路由器透明地安装在数据库客户端系统和数据库服务器集群之间的网络中。 服务器的一个子集被指定为仅处理读取查询,并且指定第二个子集来处理写入查询。 查询路由器通过网络端口接收客户端系统进行的数据库查询,并指向分配给查询路由器的IP地址和端口。 查询路由器确定查询是读取还是写入查询,并将读取查询转发到第一个子集中的服务器,并向第二个服务器子集中的服务器写入查询。 通过在网络中透明地安装查询路由器,客户端系统或数据库服务器中的软件不需要进行任何修改,以便向客户端/服务器数据库环境添加查询路由功能。
    • 7. 发明授权
    • Method and system for transparent database connection pooling and query queuing
    • 透明数据库连接池和查询队列的方法和系统
    • US08484242B1
    • 2013-07-09
    • US12862525
    • 2010-08-24
    • Varun SinghUday V. SawanatPrateek GoelNaresh G. Deshaveni
    • Varun SinghUday V. SawanatPrateek GoelNaresh G. Deshaveni
    • G06F17/30
    • G06F17/30442G06F17/3056
    • Roughly described, a database accelerator is installed transparently in a network between database client and server systems. It maintains a pool of connections to the database server(s) for re-use as needed. Connection requests from client systems are received and completed by the accelerator, and queries received on such client-side connections are forwarded through pool connections toward the database servers. If no appropriate connections are available when needed for a particular query, the accelerator forms one by emulating a client system requesting a connection to the desired database server. If the maximum number of connections has already been reached, then the query is queued until a connection becomes available in the pool. By installing the accelerator transparently in the network, no modifications are required to the software in either the client systems or the database servers to add connection pooling functionality to an existing client/server database environment.
    • 大致描述,数据库加速器在数据库客户端和服务器系统之间的网络中透明地安装。 它维护到数据库服务器的连接池,以便根据需要重新使用。 来自客户机系统的连接请求由加速器接收和完成,并且在这些客户端连接上接收的查询通过池连接转发到数据库服务器。 如果在特定查询需要时没有适当的连接可用,则加速器通过模拟请求连接到所需数据库服务器的客户端系统来形成。 如果已经达到最大连接数,则查询排队等待,直到该池中的连接可用。 通过在网络中透明地安装加速器,客户端系统或数据库服务器中的软件不需要对现有客户机/服务器数据库环境中的连接池功能进行修改。
    • 8. 发明授权
    • Method and system for transparent database query caching
    • 透明数据库查询缓存的方法和系统
    • US08543554B1
    • 2013-09-24
    • US12853649
    • 2010-08-10
    • Varun SinghUday V. SawanatPrateek GoelNaresh G. Deshaveni
    • Varun SinghUday V. SawanatPrateek GoelNaresh G. Deshaveni
    • G06F17/30
    • G06F17/3048
    • Roughly described, a database accelerator is installed in a network having client systems which makes database queries to a particular IP address and port, and database servers which accept queries received at an IP address and port. The accelerator includes a cache, and is arranged to receive, through a network port, a database query made by a client system and directed to the particular IP address and port, return response data from the cache if available there, and if not, then forward the query through a network port to the database servers. Upon receipt of response data from the servers, the accelerator can retain it in its cache in addition to forwarding it back to the client. By installing the accelerator transparently in the network, no changes are required to either the client or server software in order to add query caching functionality to an existing client/server database arrangement.
    • 粗略地描述,数据库加速器被安装在具有对特定IP地址和端口进行数据库查询的客户端系统的网络以及接受在IP地址和端口接收的查询的数据库服务器。 加速器包括高速缓存,并且被布置为通过网络端口接收由客户端系统进行的指向特定IP地址和端口的数据库查询,从高速缓存返回响应数据,如果可用的话,则否则返回 通过网络端口将查询转发到数据库服务器。 在从服务器接收到响应数据之后,除了将其转发回客户端之外,加速器还可以将其保留在其缓存中。 通过在网络中透明地安装加速器,客户端或服务器软件不需要更改,以便将查询缓存功能添加到现有的客户端/服务器数据库安排。