05327421 is referenced by 286 patents and cites 4 patents.

In accordance with the principles of this invention, Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice connections selected from the PCM data streams because they have a common destination. The cells are transmitted over ATM virtual circuits, each circuit transmitting one cell every 125 .mu.s. Advantageously, ATM transmission systems interface with PCM systems without adding appreciable delay and without requiring additional buffering. Advantageously, new voice paths can be established most of the time by using available slots in the cells of existing virtual paths. This application relates to arrangements for converting the PCM signal streams into ATM cells.

Title
Apparatus for interfacing between telecommunications call signals and broadband signals
Application Number
7/972786
Publication Number
5327421
Application Date
November 6, 1992
Publication Date
July 5, 1994
Inventor
Meyer J Zola
Oak Park
IL, US
James J Phelan
Downers Grove
IL, US
Thomas L Hiller
Glen Ellyn
IL, US
Agent
Werner Ulrich
Assignee
AT&T Bell Laboratories
NJ, US
IPC
H04L 12/56
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