Time division switching system capable of broad band communications service

Claim 1

A time division switching system for switching K-bit (K is a positive integer) transmit data and L-bit (L is a positive integer which is equal to or greater than 2) control data, the switching system comprising: transmitting means on a sending side for transmitting sequence information when K-bit×P (P is a positive integer, and 2≦P≦0) multi-element data constituting a sequence of data occupies P channels in a single frame are to be switched, said sequence information correcting the sequence of said multi-element data as part of said control data in synchronism with said multi-element data, all of said transmit data being sent to a time division multiplexed input highway having 0 channels (0 is a positive integer which is equal to or greater than 2) of time division switching equipment; and the switching system having a receiving side, R (R is a positive integer which is equal to or greater than 3) numbers of buffer memories on said receiving side for receiving and storing said multi-element data received from a time division multiplexed output highway having 0 channels of said switching equipment, accumulating means for sequentially accumulating said multi-element data in said buffer memories depending on said sequence information which has been received, and sequence correcting means for correcting and outputting the sequence of said multi-element data stored in said buffer memories when all of said multi=element data sent within the same frame from the sending side have been accumulated in one of said buffer memories on said receiving side; said sequence information being set in correspondence to each of said buffer memories, said multi-element data being accumulated in the buffer memory of said accumulating means as indicated by said sequence information which is received together with said multi-element data; and said transmitting means includes an R-nary counter which counts up in response to every transmit frame, said sequence information comprising data encoded into the output of the counter.