04058672 is referenced by 196 patents and cites 5 patents.

A packet-switched digital data communication system operable in a store-and-forward mode is provided for enabling substantially simultaneous full-duplex communication between a plurality of telecommunications terminals, facsimile transceivers or other data input sources over a communications network with a plurality of other terminals, facsimile transceivers or other data sources having access to the communications network and with which such communication is desired. The disclosed packetizing of data and transmission thereof in a store-and-forward mode with dynamic routing provides a highly efficient utilization of the transmission facilities, substantially error-free data transmission and a handshake capability between a wide variety of dissimilar and otherwise incompatible terminal devices such as facsimile transceivers having differing protocols, modulation techniques and other speed and code characteristics. Large blocks of data and other message information from data terminals are subdivided into data packets prior to transmission, converted into a systemwide compatible protocol, compressed, transmitted independently, time multiplexed with other packetized data from other terminals on the communications network, stored and forwarded on a priority basis and in accordance with network availability at one or more switching nodes in the network, reassembled from the received packets at a destination processor into the original data messages for coupling to the message destination terminals such that the received message is decompressed and reconverted into a format compatible with the destination terminal characteristics to enable information interchange therebetween.

Title
Packet-switched data communications system
Application Number
5/740681
Publication Number
4058672
Application Date
November 10, 1976
Publication Date
November 15, 1977
Inventor
Gerard J Louit
New Haven
CT, US
Robert H Griffin
Montclair
NJ, US
Sudhindra R Umarji
New York
NY, US
William C Crager
West Islip
NY, US
Agent
Jeffrey P Morris
John T O Halloran
Assignee
International Telephone and Telegraph Corporation
NJ, US
IPC
H04N 1/32
H04L 11/20
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