Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Publication of BE684727ApublicationCriticalpatent/BE684727A/xx
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L12/00—Data switching networks
H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
H04L12/525—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques involving a stored program control
