Logic selection module

Details Logic selection module Logic selection module

1982-03-23

1985-01-01

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

179 18EE, 370 59, H04Q 1104

Patent

active

044918372

ABSTRACT:
A logic selection module for forming the interface between the two central units and eight selection circuits of an electronic time automatic telephone switchboard and which comprises means for selecting the calling central unit, means for connecting the thus selected central unit, means for decoding the address of one of the eight selection circuits to which the module is connected in the signal received from the thus selected central unit and means for transmitting the marking signals received from the central unit to the said circuit, whose address has been decoded.

REFERENCES:
patent: 3786197 (1974-01-01), Jacobs et al.
patent: 3806886 (1974-04-01), McClellan et al.
patent: 3900833 (1975-08-01), Rogers
patent: 4160130 (1979-07-01), Marchetti et al.
patent: 4261052 (1981-04-01), Persson et al.
International Switching Symposium, May 7-11, 1979, Committee of CIC Paris, S. M. Schreiner et al.: "Use of Microprocessors in Large Digital Switching Systems", pp. 737-744.
Telecommunications and Radio Engineering, vol. 29-30, No. 2, 1975, Washington, M. K. Goncharok et al.: "Parameters of the Connecting Networks Between a Special Purpose Control Computer (SPCC) and Telephone Equipment", pp. 28-33.
Review of the Electrical Communication Laboratories, vol. 27, No. 9/10, 1979, Y. Kaneko et al.: "Signaling Equipment for Digital Switching System", pp. 740-757.
International Switching Symposium, May 7-11, 1979, Committee of CIC Paris, J. P. Lager, et al., "Fault Detection and Processing in the MT Time Division System", pp. 193-200.

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