| 摘要 |
<p>The switching matrix comprises an assembly of elementary connection matrices in parallel, M1, M2...Mk each having n inputs and y outputs and thus n.y crossover points controlled by control signals applied to these matrices. The outputs of the same rows, for example s11, s21,...sky of the different matrices are connected to the inputs of a logic circuit with gate or, P1;s12,s22...sk2 to P2; etc..., s1y,s2y...sky to Py. For the connection of any input Ei of a matrix to any output Sj of a logic circuit Pj, the crossover point i,j of the matrix having this input Ei is enabled in such a way that the output sj of this matrix is active and all the other inputs of the circuit with the gate or Pj connected to the corresponding output rank j of the other matrices being placed at a neutral potential. Application particularly to video switching matrices with large dimensions for PFM or SPFM signals. <IMAGE></p> |
