The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 1983
Filed:
Apr. 21, 1980
Applicant:
Inventors:
Jacques E Salle, Colombes, FR;
Jean A Jossif, Colombes, FR;
Gilbert J Rathier, Colombes, FR;
Jean-Pierre Vales, Colombes, FR;
Assignee:
Le Materiel Telephonique Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
370 56 ; 370 58 ; 370 66 ;
Abstract
Concentrator-deconcentrator devices for time-division telephone systems, based on the use of symmetrical time-division arrays arranged in terminal modules comprising subscriber and line connecting units to be served and in central modules which provide the connections between these equipments and the exchange to which the device is connected by ensuring variable concentration and improved security. The device is intended for PCM time-division telephone systems.