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2. 发明授权

US5454725A Circuit card with low profile detachable interface 失效
标题翻译：电路卡具有低剖面可拆卸接口
公开(公告)号：US5454725A
公开(公告)日：1995-10-03
申请号：US163255
申请日：1993-12-07
申请人： Benjamin T. Speiser , Lloyd N. Oliver
发明人： Benjamin T. Speiser , Lloyd N. Oliver
IPC分类号： G06F1/18 , H01R12/50 , H01R31/06 , H04L25/02 , H05K7/14 , H01R9/09
CPC分类号： H05K7/1461 , H01R31/06 , H01R2201/04 , H01R23/6873
摘要： An adapter and control card system for a digital computer is provided for coupling the digital computer to a selectable choice of communications media. The system includes a general-application host card removably insertable into the digital computer, and a communications-medium-specific adapter card removably insertable into the host card, the host card having a cutout conforming to side and end boundaries of said adapter card, the adapter card fitting within the cutout along a substantially common plane in order to minimize surface height of the adapter card and the host card. Mating connectors, particularly between the adapter card and the host card, form transmission lines taking full advantage of ground pins adjacent to signal-carrying differential pairs shielding the signals with a controlled characteristic impedance. In a specific embodiment, the support structure for the connectors also forms the mechanical support for the adapter card and the host card.
摘要翻译：提供了一种用于数字计算机的适配器和控制卡系统，用于将数字计算机耦合到通信媒体的可选择的选择。该系统包括可移除地插入到数字计算机中的通用应用主机卡，以及可拆卸地插入到主机卡中的通信媒体专用适配器卡，主机卡具有符合所述适配器卡的侧边和端边界的切口，适配器卡沿着基本上共同的平面配合在切口内，以便使适配器卡和主机卡的表面高度最小化。配合连接器，特别是在适配器卡和主机卡之间，形成传输线，充分利用与信号承载差分对相邻的接地引脚，屏蔽具有受控特性阻抗的信号。在具体实施例中，用于连接器的支撑结构还形成用于适配器卡和主机卡的机械支撑。

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