Patent Document ID: 4377859
Application ID: 06183512
Patent Status: 1

Claim One:
1. A telephone switching network of the type adapted to provide connections between a plurality of input subscriber line terminals, comprising: a time slot interchanger means, including a first transmit switch memory (41) having a first plurality of storage locations each associated with a specific address indicative of a given subscriber terminal for storing at said location data to be transmitted by said line, a second receive switch memory (42) having a second plurality of storage locations each associated with a specific address indicative of a given subscriber terminal for storing at said location data to be received by said line, a connect memory (43) having a plurality of storage locations therein for storing data indicative of connections to be made between subscriber terminals, with each of said locations capable of being accessed by a given address for said location, subscriber terminal interface means (40) having input terminals coupled to said plurality of subscribers and output terminals coupled to said first and second memories (41 and 42) with certain of said output terminals as coupled to said first memory providing transmitted data, and other terminals coupled to said second memory for receiving data, processing means coupled to said subscriber terminal interface means, said first and second memories and said connect memory and adapted to direct all transmitted data emanating from said certain output terminals of said interface means to said first memory locations, and all received data emanating from said second storage locations to said other terminals, said processing means including access control means for controlling said connect memory to couple any of said first and second storage locations associated with any one subscriber terminal to any other of said first and second storage locations associated with another subscriber terminal via said interface means and according to an address stored in said connect memory, whereby any two subscriber terminals are capable of communicating with each other.