System of data transmission by sharing in the time-frequency spa

System of transmission by packets with data compression, corresp

System of transmitting information between a central station and

System structure recognition method for a multiloop transmission

System switching method and apparatus without loss of signal in

System timing means for data processing system

System to interconnect subscriber lines to a telephone automatic

System which achieves efficient utilization of buses for selecti

System, apparatus and method for controlling a multiple access d

Systems and methods for data channel queue control in a communic

Systems for changing addresses of transmission apparatus

Systems for selecting a transmission control procedure in commun

Systolic multiple channel band-partitioned noise canceller