Patent · US Expired

Logic selection module

US4491837A · kind A · utility

0Cited by

5References

8Claims

0Family size

Assignee

Thomson-Csf Telephone · FR

Inventors

Claude Athenes · Paris, FR
Francois Tarbouriech · Les Ulis, FR
Gerard Poux · Colombes, FR

Key dates

Filing date	Mar 23, 1982
Grant date	Jan 1, 1985
Priority date	—
Expiry date	Mar 23, 2002

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q11/0407
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.