Baseband local area network using ordinary telephone wiring

Details Baseband local area network using ordinary telephone wiring Baseband local area network using ordinary telephone wiring

1984-06-01

1991-01-15

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370124, H04J 102

Patent

active

049858920

ABSTRACT:
A Local Area Network (LAN) is disclosed which enables a generalized data communication facility to be established over ordinary telephone wiring. The disclosed technique provides a completely general LAN architecture with any access protocol and is well suited to CSMA/CD (carrier sense, multiple access with collision detection). The invention consists of architectural and circuit techniques which enable the construction of a local area network(s) (LAN) over ordinary wiring within a building or between buildings within a short distance of each other (often called a campus). The LAN is implemented without disturbing the normal voice function of the telephone circuits and without the need to string addirional wiring. Implementing a LAN in accordance with this invention only requires three types of hardware functional elements (in the appropriate quantities for the application): (a) a Node Unit (NU), (b) Repeater Unit (RU), and (c) depending on the size of the network, possibly a Pulse Regenerator Unit (PRU).

REFERENCES:
patent: 3522381 (1970-07-01), Feder
patent: 3577202 (1971-04-01), Brightman
patent: 4069392 (1978-01-01), Goldberg et al.
patent: 4291199 (1981-09-01), Densmore et al.
patent: 4417335 (1983-11-01), Kelly et al.
patent: 4443662 (1984-04-01), Nakhla
patent: 4456986 (1984-06-01), Carsten et al.
patent: 4488004 (1984-12-01), Bogart et al.
patent: 4536615 (1985-08-01), Kimijima et al.
patent: 4546212 (1985-10-01), Crowder
patent: 4672605 (1987-01-01), Hustig et al.
patent: 4785448 (1988-11-01), Reichert et al.
"High-Frequency Data Transmission Over Urban Telephone Networks" by G. P. Divnogortsev, Data Transmission, pp. 40-42.
Telecommun. & Radio Eng. Pt. 1 (U.S.A.) vol. 26, No. 6 (Jun. 1972).
"LAN" in Network, Jul.-Aug. 1983, pp. 6-14.
Brochure Entitled "Linemate 192", Coherent Communications Corp. (No. Date).
Article from the Conference on International Switching Symposium by Tsuda et al., May 7-10, 1979.
Rolm Corporation Article Entitled "Integrating Voice and Data Communications with the Rolm CBX", (No Date), pp. 1-5.
"Comparing Features Aids Selecting Broadband Local Net" by Gibson in Data Communications, Apr. 1982, pp. 127, 132.
"Which Local Net Bus Access is Most Sensitive to Traffic Cong." by Stuck in Data Communications, Jan. 1983, pp. 107-120.
"A Primer for Evaluating and Purchasing Today's Local Networks" by Gibson in Data Communications, Jun. 1982, pp. 147-156.

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