发明名称 Commutation grid
摘要 A commutation grid in which any of N input signals can be output to any of M outputs. The input signals are fed to an input card which passes the input signals to an output card via a commutation card. These card elements are supported in a rack system which allows each card to make an appropriate contact with any other card. A user is also permitted to issue a command order which controls the operation of the communication card.
申请公布号 US4949171(A) 申请公布日期 1990.08.14
申请号 US19880275387 申请日期 1988.11.23
申请人 VISICABLE + 发明人 GRANDMOUGIN, GERARD
分类号 H03K17/00;H03K17/74;H04H20/63;H04N5/268;H04Q3/52 主分类号 H03K17/00
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