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    • 5. 发明申请
    • Radio positioning systems
    • 无线电定位系统
    • US20050259763A1
    • 2005-11-24
    • US10525829
    • 2003-08-18
    • Peter Duffett-SmithMalcolm MacNaughtanChristopher ClarkeRobert Rowe
    • Peter Duffett-SmithMalcolm MacNaughtanChristopher ClarkeRobert Rowe
    • G01S5/02G01S5/10H04B15/00
    • G01S5/02G01S5/10
    • The invention provides a method of estimating the time offsets between signals transmitted by plural transmitters of a communications network and received by a receiver attached to a terminal. In the method a section of a representation of the signals from the plural transmitters received by the receiver at the terminal (a “terminal section”) is created as are a first section of a representation of the signal transmitted by a first of said transmitters and a second section of a representation of the signal transmitted by a second of said transmitters. Each of the first and second sections overlaps in time with the terminal section. Using the first section, the second section and a set of signal parameters, including initial estimates of the time offsets between the first section and the terminal section and between the second section and the terminal section, a model of a section of a representation of the composite signal received by the receiver from the first and second transmitters is created. Thereafter, the model is compared with the terminal section and the set of signal parameters including the time offset estimates is refined to minimise the difference between the model and the terminal section. The time offsets in the refined parameter set used to minimise the difference between said model and the terminal section, are adopted as the estimated time offsets between the first section and the terminal section and between the second section and the terminal section.
    • 本发明提供一种估计由通信网络的多个发射机发送并由附接到终端的接收机接收的信号之间的时间偏移的方法。 在该方法中,创建由接收机在终端(“终端部分”)处接收的来自多个发射机的信号的表示部分,以及由第一所述发射机发射的信号的表示的第一部分,以及 由第二所述发射机发送的信号的表示的第二部分。 第一和第二部分中的每一个在时间上与终端部分重叠。 使用第一部分,第二部分和一组信号参数,包括第一部分和终端部分之间以及第二部分和终端部分之间的时间偏移的初始估计,一个表示的部分的模型 创建由接收机从第一和第二发射机接收的复合信号。 此后,将模型与终端部分进行比较,并且包括时间偏移估计的信号参数集合被改进以最小化模型和终端部分之间的差异。 采用用于最小化所述模型和终端部分之间的差异的精细参数集中的时间偏移作为第一部分和终端部分之间以及第二部分和终端部分之间的估计时间偏移。
    • 7. 发明授权
    • Power semiconductor module
    • 功率半导体模块
    • US6078501A
    • 2000-06-20
    • US215580
    • 1998-12-17
    • John CatramboneDavid DoironJay GreenspanWilliam DriscollChristopher ClarkeBoris Semenov
    • John CatramboneDavid DoironJay GreenspanWilliam DriscollChristopher ClarkeBoris Semenov
    • H01L25/07H01L25/18H02M7/00H05K7/20
    • H02M7/003H01L2224/48137H01L2224/48472H01L2224/49111
    • An electronic module or package is disclosed for providing high reliability and high performance operation. The package comprises a hermetically sealed enclosure having a metallic baseplate and a ceramic cover, and containing one or more circuits or devices therein which typically are power rectifiers, bridges or power control circuitry. One or more power terminals are disposed on a terminal block compliantly supported on or above the baseplate, the terminals extending through the cover in hermetically sealed manner. Signal or control terminals may also be disposed on a terminal block compliantly supported on or above the baseplate, these terminals also extending through the cover in hermetically sealed manner. An adapter plate may be mounted on the cover and containing a plurality of terminals connected to the module terminals. The terminals of the adapter plate can be in any configuration to suit user requirements without requiring a change in the terminal configuration of the module itself. The adapter plate may also contain active and/or passive circuitry.
    • 公开了一种用于提供高可靠性和高性能操作的电子模块或封装。 该封装包括具有金属底板和陶瓷盖的气密密封外壳,并且其中包含一个或多个电路或设备,其通常是功率整流器,电桥或功率控制电路。 一个或多个电源端子设置在顺应地支撑在基板上或上方的端子排上,端子以气密方式延伸穿过盖。 信号或控制端子也可以布置在顺应地支撑在基板上或上方的端子块上,这些端子也以密封的方式延伸穿过盖。 适配器板可以安装在盖上并且包含连接到模块端子的多个端子。 适配器板的端子可以是任何配置以满足用户要求,而不需要改变模块本身的端子配置。 适配器板还可以包含有源和/或无源电路。