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    • 63. 发明申请
    • LARGE CORE HOLEY FIBERS
    • 大芯孔纤维
    • US20080056656A1
    • 2008-03-06
    • US11851270
    • 2007-09-06
    • Liang DongDonald HarterWilliam Wong
    • Liang DongDonald HarterWilliam Wong
    • G02B6/036G02B6/032
    • G02B6/032G02B6/02009G02B6/02047G02B6/02328G02B6/02338G02B6/02342G02B6/02357G02B6/02361G02B6/02366G02B6/024G02B6/14G02B6/32H01S3/06716H01S3/06729H01S3/06733H01S3/06741H01S3/06754
    • Various types of holey fiber provide optical propagation. In various embodiments, for example, a large core holey fiber comprises a cladding region formed by large holes arranged in few layers. The number of layers or rows of holes about the large core can be used to coarse tune the leakage losses of the fundamental and higher modes of a signal, thereby allowing the non-fundamental modes to be substantially eliminated by leakage over a given length of fiber. Fine tuning of leakage losses can be performed by adjusting the hole dimension and/or the hole spacing to yield a desired operation with a desired leakage loss of the fundamental mode. Resulting holely fibers have a large hole dimension and spacing, and thus a large core, when compared to traditional fibers and conventional fibers that propagate a single mode. Other loss mechanisms, such as bend loss and modal spacing can be utilized for selected modes of operation of holey fibers. Other embodiments are also provided.
    • 各种有孔光纤提供光学传播。 在各种实施例中,例如,大的核心多孔纤维包括由几个布置成几层的大孔形成的包层区域。 可以使用围绕大芯的多个层或多排的孔来粗调基本信号和较高模式的信号的泄漏损耗,从而通过在给定长度的光纤上的泄漏来基本上消除非基本模式 。 泄漏损失的微调可以通过调整孔尺寸和/或孔间距来实现,以产生所需的基本模式的泄漏损失的操作。 与传统单模式的传统纤维和传统纤维相比,所产生的多孔纤维具有较大的孔尺寸和间距,因而具有较大的纤芯。 诸如弯曲损耗和模态间隔的其它损耗机制可以用于多孔纤维的选定操作模式。 还提供了其他实施例。
    • 64. 发明授权
    • Method, system, and computer program product for managing database servers and service
    • 用于管理数据库服务器和服务的方法,系统和计算机程序产品
    • US07123608B1
    • 2006-10-17
    • US09527915
    • 2000-03-17
    • Mark ScottWilliam WongAnita ChengSimon HoGeorge IrimescuDorel VoineagMin YaoRow J. Zadeh
    • Mark ScottWilliam WongAnita ChengSimon HoGeorge IrimescuDorel VoineagMin YaoRow J. Zadeh
    • H04L12/66G06F7/00G06F15/16
    • H04M3/2218H04L67/16H04L67/30H04L67/306H04M7/1205H04M2201/42
    • A system, method, and computer program product for managing database servers and services is disclosed, which expands the capabilities of existing systems by providing better scalability and security. A database management system includes databases consisting of database clients and servers that handle the storing of information, a multi-database client that manages database servers, service modules which allow other systems to access the database servers, and a database access manager that manages requests from the service modules. A database access manager facilitates and coordinates interaction between the service modules and the multi-database client. Service modules provide interfaces from which other external or internal systems can access the managed databases. Requests can be sent between systems and the database access manager via the service modules. Two present and representative implementations of service modules are: user management and call detail record (CDR) collection. The user management service module allows systems to access user account information stored in the databases. The CDR collection service module inserts details for each call made on the network.
    • 公开了一种用于管理数据库服务器和服务的系统,方法和计算机程序产品,其通过提供更好的可扩展性和安全性来扩展现有系统的能力。 数据库管理系统包括由数据库客户机和处理信息存储的服务器组成的数据库,管理数据库服务器的多数据库客户端,允许其他系统访问数据库服务器的服务模块以及管理来自 服务模块。 数据库访问管理器便于和协调服务模块与多数据库客户端之间的交互。 服务模块提供其他外部或内部系统可以访问托管数据库的接口。 可以通过服务模块在系统和数据库访问管理器之间发送请求。 服务模块的现有和代表性的两个实现是:用户管理和呼叫详细记录(CDR)集合。 用户管理服务模块允许系统访问数据库中存储的用户帐户信息。 CDR收集服务模块插入网络上进行的每个呼叫的详细信息。