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    • 63. 发明授权
    • Circuit board inter-connection system and method
    • 电路板互连系统及方法
    • US07025640B2
    • 2006-04-11
    • US10666945
    • 2003-09-19
    • Daniel S EichornMichael W AllenderDominic Anthony MessuriChristopher Alan Brandon
    • Daniel S EichornMichael W AllenderDominic Anthony MessuriChristopher Alan Brandon
    • H01R4/02
    • H01R12/58H01R12/523H05K3/306H05K3/3447H05K2201/10303H05K2201/10424H05K2201/10568H05K2201/2036Y10T29/49147
    • An electrical inter-connection is provided such that a terminal pin which is positioned in a pin block extends through a plated through-hole in a circuit board substrate and is connected with the circuit board using a conductive bonding agent such as solder. The terminal pin is capable of inter-connection with conductive elements located on each major side of the circuit board and eliminates the need for an interference fit between the terminal pin and circuit board. The pin block includes a body and at least one stand-off. The stand-off maintains the body a sufficient distance from the circuit board substrate to enable a solder fillet to form between the plated through-hole and the terminal pin during re-flow processing. The electrical inter-connection further includes an eccentric aperture in the circuit board suitable for interference fit inter-connection with a protruding cylindrical feature such as on an electrical ground that has poor solderability characteristics. The preferred embodiment limits normal forces caused by temperature cycling, vibration, and other conditions to two areas of contact yet enables adequately low electrical contact resistance.
    • 提供电连接,使得定位在销块中的端子销延伸穿过电路板基板中的电镀通孔,并且使用诸如焊料的导电粘合剂与电路板连接。 端子引脚能够与位于电路板的每个主要侧面上的导电元件相互连接,并且不需要端子引脚和电路板之间的过盈配合。 销块包括主体和至少一个支架。 支架将主体与电路板基板保持足够的距离,以便在再流动处理期间能够在电镀通孔和端子销之间形成焊锡圆角。 电气互连还包括电路板中的偏心孔,其适于与诸如在具有差的可焊性特性的电气接地上的突出圆柱形特征相互连接的过盈配合。 优选的实施例将由温度循环,振动和其他条件引起的正常力限制到两个接触区域,但是能够实现足够低的电接触电阻。
    • 64. 发明授权
    • Technique for enhanced information assistance call routing
    • 增强信息协助呼叫路由技术
    • US06934378B2
    • 2005-08-23
    • US10160307
    • 2002-05-31
    • Nathan Bryant BakerChristopher Alan Huey
    • Nathan Bryant BakerChristopher Alan Huey
    • H04M3/42H04M3/493H04M7/00H04M15/00H04Q3/66
    • H04M15/8044H04M3/42391H04M3/4931H04M3/4933H04M3/4935H04M7/00H04M15/00H04M15/49H04M2203/158H04M2215/42H04M2215/46H04M2215/745H04Q3/66H04Q2213/13072H04Q2213/13141H04Q2213/13217H04Q2213/13376
    • In an information assistance service environment, after information assistance is provided to a caller, the caller may request to have the information assistance service provider complete the call. In the prior art, the call was routed back to the carrier switch from which the information assistance service provider received the call, and that carrier completed the call. In the invention, the information assistance service provider chooses how to route the call to the destination requested by the caller. A routing database including routes available to terminate the call is searched and the call is routed after considering a number of criteria such as availability of routing trunks, the LATA (local access and transport area) within which the destination phone number resides, pricing information, or a combination of these criteria. Routing may be accomplished using a local exchange carrier (LEC), an inter-exchange (or long-distance) carrier (IXC), an inter-machine transfer trunk (IMT), which connects two or more information assistance service centers, or a combination of these.
    • 在信息援助服务环境中,在向呼叫者提供信息协助之后,呼叫者可以请求信息协助服务提供者完成呼叫。 在现有技术中,呼叫被路由回到信息协助服务提供商接收到呼叫的载波交换机,并且该载波完成呼叫。 在本发明中,信息援助服务提供商选择如何将呼叫路由到由呼叫者请求的目的地。 搜索包括可用于终止呼叫的路由的路由数据库,并且在考虑了路由中继线的可用性,目的地电话号码所在的LATA(本地接入和传输区域),定价信息, 或这些标准的组合。 路由可以使用连接两个或更多个信息援助服务中心的本地交换机(LEC),交换机(或长途)运营商(IXC),机间转移中继线(IMT)来实现,或者 这些的组合。
    • 65. 发明授权
    • Method and apparatus for sampling digital data at a virtually constant rate, and transferring that data into a non-constant sampling rate device
    • 用于以几乎恒定的速率对数字数据进行采样并将该数据传送到非恒定采样率装置的方法和装置
    • US06865241B1
    • 2005-03-08
    • US09464312
    • 1999-12-15
    • Christopher Alan AdkinsDavid Allen Crutchfield
    • Christopher Alan AdkinsDavid Allen Crutchfield
    • G06F13/00G06F13/40
    • G06F13/4059
    • An improved data acquisition system interface provides virtually constant sampling of input signals and provides those signals in a digitized format to a data acquisition unit that may not be able to sample at a constant rate without missing or “losing” some of the samples. The present invention acts as a front end interface that temporarily latches the sampled data, expands the data into multiple parallel signals, then stores the multiple parallel signals in a dual-port FIFO memory unit. Finally, the multiple parallel signals are transferred into the data acquisition unit at a lower frequency, and the transfer operations take place only when the data acquisition unit is ready to accept data. Since the front end misses no sampling intervals (i.e., it always takes a sample according to an extremely constant frequency crystal clock), then the data acquisition unit will be provided with all of these samples without losing any data. The only requirement is that the data throughput of the multiple parallel signals into the data acquisition unit be greater than or equal to the data sampling rate of the original signal at the front end. The present invention can be used with pure digital signals to capture their precise times of logic state transitions, or with serial data signals in which the precise moments of transition can be used to decipher the serial data. Moreover, the interface can be used with analog signals that are digitized using an analog-to-digital converter.
    • 改进的数据采集系统接口实际上提供输入信号的实际恒定采样,并将数字化格式的那些信号提供给数据采集单元,该数据采集单元可能无法以恒定速率进行采样而不丢失或“丢失”某些采样。 本发明用作临时锁存采样数据的前端接口,将数据扩展成多个并行信号,然后将多个并行信号存储在双端口FIFO存储器单元中。 最后,多个并行信号以较低的频率被传送到数据采集单元中,并且传输操作仅在数据采集单元准备好接收数据时进行。 由于前端没有错误的采样间隔(即,它总是根据非常恒定的频率晶体时钟采样),所以数据采集单元将被提供所有这些采样而不丢失任何数据。 唯一的要求是数据采集单元中的多个并行信号的数据吞吐量大于或等于前端原始信号的数据采样率。 本发明可以与纯数字信号一起使用以捕获它们的逻辑状态转换的精确时间,或者利用串行数据信号,其中可以使用精确转换时刻来解码串行数据。 此外,该接口可以与使用模拟 - 数字转换器数字化的模拟信号一起使用。