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1. 发明授权

US5684966A Method for operating a repeater for distributed arbitration digital data buses 失效
标题翻译：用于操作分布式仲裁数字数据总线的中继器的方法
公开(公告)号：US5684966A
公开(公告)日：1997-11-04
申请号：US473567
申请日：1995-06-06
申请人： Thomas Austin Gafford , Botond Gabor Eross, deceased , James A. Moorer, executor , Barbara L. Barrie, executor
发明人： Thomas Austin Gafford , Botond Gabor Eross, deceased , James A. Moorer, executor , Barbara L. Barrie, executor
IPC分类号： G06F13/14 , G06F13/36 , G06F13/368 , G06F13/40 , G06F13/00
CPC分类号： G06F13/4022 , G06F13/36 , G06F13/368 , G06F13/4004
摘要： The technical field of the invention generally concerns digital computers and, in particular, repeaters or switches (40) for distributed arbitration digital data buses (52, 54, 56, and 58) to which devices (62, 64, 66, 68, 72 and 74) connect in parallel. The bus repeater/switch (40) includes a plurality of bus interface cards (48) that are connected to the distributed arbitration buses (52, 54, 56 and 58) for receiving signals from and transmitting signals to devices (62, 64, 66, 68, 72 and 74) connected thereto. The bus interface cards (48) connect to a control card (44) which allows signals from one of the sharing buses (52, 54 or 56) to be exchanged with the shared bus (58). The bus switch (40) also includes selector switch (84 or 88) for choosing which particular one of the sharing buses (52, 54 or 56) exchanges digital data signals with the shared bus (58). The bus switch (40) responds to signals on the distributed arbitration buses (52, 54, 56 and 58) and to phases of the protocol for those signals so that its presence between pairs of buses (52-58, 54-58 or 56-58) is imperceptible to devices (62, 64, 66, 68, 72 and 74) connected thereto.
摘要翻译：本发明的技术领域通常涉及数字计算机，特别是用于分布式仲裁数字数据总线（52,54,56和58）的中继器或交换机（40），设备（62,64,66,68,72 和74）并联连接。总线中继器/开关（40）包括多个总线接口卡（48），其连接到分布式仲裁总线（52,54,56和58），用于从设备（62,64,66 ，68,72和74）。总线接口卡（48）连接到控制卡（44），其允许来自共享总线（52,54或56）之一的信号与共享总线（58）交换。总线开关（40）还包括用于选择共享总线（52,54或56）中的哪一个与共享总线（58）交换数字数据信号的选择器开关（84或88）。总线开关（40）对分布式仲裁总线（52,54,56和58）上的信号进行响应，并对这些信号的协议阶段进行响应，使其在总线对（52-58,54-58或56）之间的存在 -58）对于与其连接的装置（62,64,66,68,72和74）是不可察觉的。

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