Line connection reversing circuits

A line connection reversing circuit comprising a first set of a plurality of paired transmission lines, a second set of a plurality of paired transmission lines crossing said first set of paired transmission lines to form a matrix, each one of said transmission lines including two conductors, first and second pairs of bidirectional semiconductor switching elements disposed at each cross-point of said matrix, one bidirectional semiconductor switching element of the first pair being connected between the first conductor of one paired transmission line of the first set and the first conductor of one paired transmission line of the second set, the other bidirectional semiconductor switching element of the first pair being connected between the second conductor of said paired transmission line of said first set and the second conductor of said paired transmission line of said second set, one bidirectional semiconductor switching element of the second pair being connected between said first conductor of said paired transmission line of said first set and said second conductor of said paired transmission line of said second set and the other bidirectional semiconductor switching element of the second pair being connected between said second conductor of said paired transmission line of the first set and said first conductor of said paired transmission line of said second set, and means electrically coupled to said first and second pairs of semiconductor switching elements for oppositely controlling said first and second pairs of said semiconductor switching elements.