发明名称 |
Control means for a solid state crossbar switch |
摘要 |
A control system for a solid state crossbar switch (10) which allows a plurality of switch control and interrogation functions to be implemented by time sharing related circuitry. The crossbar switch (10) includes a plurality of X ports (X1-XN) and Y ports (Y1-YM), each X-Y port intersection designating a specific X-Y intersection latch which controls a plurality of associated switches for interconnecting one set of data lines associated with the X port to another set of data lines associated with the Y port. The control system disclosed continuously and sequentially addresses each of the X-Y intersection latches at a 10 megahertz rate. During this continual and sequential addressing, the control circuitry disclosed includes a capability for interrogating each intersection latch for determining which are in a set condition, ensuring that only one X-Y intersection latch is set on an X row and Y column defining that latch, resetting all of the X-Y intersection latches, and determining which of the X-Y intersection latches are in a set condition.
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申请公布号 |
US4331956(A) |
申请公布日期 |
1982.05.25 |
申请号 |
US19800191744 |
申请日期 |
1980.09.29 |
申请人 |
LOVELACE, ALAN M. ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION, WITH RESPECT TO AN INVENTION OF;ANDERSON, TAGE O. |
发明人 |
LOVELACE, ALAN M. ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION, WITH RESPECT TO AN INVENTION OF;ANDERSON, TAGE O. |
分类号 |
H04Q1/24;H04Q3/52;(IPC1-7):H04Q9/00;H04Q3/42 |
主分类号 |
H04Q1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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