Remote station of a computer system

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G06F 300

Patent

active

045802394

ABSTRACT:
The present invention is an improvement to a station at a remote location from a distant computer which communicates at a predetermined rate prior to said improvement by way of telephone lines. A modem is connected to the telephone line which converts signals carried by the telephone lines to signals suitable for use with a controller and converts signals from a controller to signals suitable to be carried by the telephone lines. There are at least two controllers, each controller is connected to a plurality of terminals. Apparatus connects the modem to the controllers which derives a set of signals for each controller in accordance with the signals from the modem and derives a set of signals for the modem from signals provided by the controllers in a manner so that the remote station communicates with the computer at substantially a predetermined rate.

REFERENCES:
patent: 3772656 (1973-11-01), Serrachioli
patent: 4124889 (1978-11-01), Kaufman et al.
patent: 4387440 (1983-06-01), Eaton
patent: 4387442 (1983-06-01), Stuehler
patent: 4388686 (1983-06-01), Haid
patent: 4425616 (1984-01-01), Woodwell
"Motorola Linear Integrated Circuit", Technical Information Center of Motorola, Inc., 1979, pp. 5/32-5/43.
"Interface Data Book", National Semiconductor, 1979, pp. 1/18-1/23.

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