Journal ArticleDOI
Network and System Architecture: The Integrated Approach to ISDN in the UT Line
F. Melindo,G. Valbonesi +1 more
TLDR
An approach to ISDN suitable both for a pilot service, to be carried out in the near future in Italy, and for long-term developments with a high degree of penetration of ISDN setvices is presented.Abstract:Â
The paper presents an approach to ISDN suitable both for a pilot service, to be carried out in the near future in Italy, and for long-term developments with a high degree of penetration of ISDN setvices. Integration of ISDN services in the digital telephone exchange "UT" has taken place at all levels: system architecture, subscriber access structure, circuit connecting network, transmission links, call processing, and 0 & M functions. We also describe a new protocol that facilitates the dialog between exchange modules and between different exchanges for the data service. It is suitable for implementing packet transit switches with low complexity, high throughput, and low transit time. A special peripheral-handling processor handles the most repetitive functions of the protocols both in the local exchange and in other parts of the network, while the exchange central processor performs the ISDN call-handling functions; the same peripheral processors and the same module processor are used for both ISDN and telephone services. Finally, the paper shows how this architecture can evolve to include new wide-band services and new techniques to implement high-capacity fast packet switches.read more
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Patent
Video transmission and control system utilizing internal telephone lines
David D. Goodman,Robert Domnitz +1 more
TL;DR: In this paper, a video transmission system for facilitating transmission of video and control signals between different locations in a residence using existing telephone wiring is presented. But it does not address the problem of interference with telephone communications.
Patent
High-speed data communication over a residential telephone wiring network
TL;DR: In this paper, a method and system for communicating between a number of computers within a residence over an active telephone network, and for communicating data between a telephone exchange and the residence in a first data band concurrently with the computers communicating in a second data band over the telephone wiring network within the residence.
Journal ArticleDOI
ECBM--Low-Cost Echo Canceller in a Silicon Boutique for Terminals, PBX's and CO Access
TL;DR: The echo canceller burst mode (ECBM) is part of a "silicon boutique," a family of devices that offer a cost-effective industrial solution to the problem of ISDN basic access, taking advantage of both the echo cancellation and the time compression techniques.
Implementing ISDN: A Sociotechnical Analysis.
TL;DR: This sociotechnical analysis assesses the effects on the educational environment of migrating from the currently fragmented analog system to an environment dominated by integrated digital telecommunications systems.
Patent
Two-way communication over a single transmission line between one or more information sources and a group of telephones, computers, and televisions
TL;DR: In this paper, a system for communicating data over a plurality of telephone lines between a source of information and a multiplicity of destinations of data is proposed. But the system is not suitable for large numbers of devices and each of the telephone lines connects to a different one of the plurality of destinations and also carries voice signals to and from a plurality devices.
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Journal ArticleDOI
New directions in communications (or which way to the information age
TL;DR: This article outlined some of the key elements of an integrated network technology, capable of supporting voice, data, and video communication and having the flexibility to accommodate new services as the need arose, and identified Integrated switching architectures, generalized connection signaling protocols, quality-of-service, multicast switching, and routing were all identified as key challenges to be addressed.