Time division digital switching system with code converting and inverse-converting circuits

摘要

A time division switching system for interconnecting two arbitrary terminals in a digital telephone switching system or a data communication system is disclosed. The system includes a code converting circuit which receives two digital signals transmitted from two line circuits participating in a communication and produces a third digital signal indicating the mutual relationship between the two digital signals. A common bus distributes the third digital signal to the respective line circuits each of which includes a code inverse-converting circuit. A control memory stores a plurality of address pairs, and control means allots one time slot to the two line circuits so that information is interchanged periodically between the two line circuits by an address pair obtained periodically from the control memory.