Conversion circuit arrangement and method for switching digital

Details Conversion circuit arrangement and method for switching digital Conversion circuit arrangement and method for switching digital

1980-03-10

1982-04-06

Robinson, Thomas A.

Telegraphy

Systems

Automatic

178 26R, H04N 132, G06F 314, H04Q 354

Patent

active

043237282

ABSTRACT:
There is disclosed a conversion circuit arrangement for switching digital data signals between data terminals operating with different data transmission procedures. The circuit arrangement adapted for use with an electronic data switching system is composed of at least two interface circuits having input/output converting networks. External terminals of these interface circuits are connected to respective input/output means of the switching system for each type of data terminal. Internal input/output terminals of the interface circuits are connected to respective terminals of a storage unit. There is provided a control unit for controlling data transmission between the interface circuits and the storage unit and vice versa such that messages are buffered in the storage unit. The stored message is converted according to the data transmission procedure of the receiving data terminal.

REFERENCES:
patent: 3935391 (1976-01-01), Weir et al.
patent: 3958088 (1976-05-01), Vieri
patent: 4144407 (1979-03-01), Zaffignani et al.
patent: 4156796 (1979-05-01), O'Neal et al.
patent: 4241802 (1980-12-01), Bergman
Technical Manual: Siemens System Eds., Oct. 1977, Ref. No. F234/150.18.101, Siemens Abt., Munich, W. Germany.
EDS-A New Electronic Data Switching System, Nachrichtentechnische Zeitschrift (22), 1969, No. 8, pp. 444-463.
Nachrichtentechnische Zeitschrift (29), 1976, No. 3, pp. 196 and 219.
"The Public Switched Data Network of the Deutsche Bunderpost . . . " published in Evolutions in Computer Communications, 1978.
"A Commercial Test of Digital Networks and its Future Survey" published in International Switching Symposium, Japan, 1976.

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