| 摘要 |
PURPOSE:To realize plural kinds of matrix changeover circuits with different input and output signal lines by selecting number of input and output signal lines of the entire matrix changeover circuit to be a prescribed number of multiple of the number of input and output signal lines of the standard matrix changeover circuit. CONSTITUTION:M-sets (e.g. 4) of standard matrix changeover circuits 10 are interconnected in parallel by using input signal connection wires 21-28, output signal connection wires 31-38 and switching control signal connection wires 41-54. Thus, the matrix changeover circuit whose input and output signal line numbers are respectively eight is formed. Thus, the number of input and output signal line numbers of the matrix changeover circuit are selected to be a multiple of M and a multiple of N of the standard matrix circuit 10 by connecting M-sets of the standard matrix circuits 10 in one direction and connecting N-sets of the standard matrix circuits 10 in other direction. As a result, plural kinds of matrix changeover circuits whose input and output signal line numbers differ from each other are easily and inexpensively obtained. |
