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:
Jun. 09, 1981
Filed:
Jul. 02, 1979
Alain Y Roche, Lanion, FR;
Olivier F Louvet, Lanion, FR;
Daniel J Mell, Pleumeur Bodou, FR;
Perros Guirec, Pleumeur Bodou, FR;
Herve LeBris, Pleumeur Boudou, FR;
Centre National d'Etudes de Telecommunication, Issy les Moulineaux, FR;
Abstract
Multiplex time division switching network unit comprising a plurality of P groups of N incoming and outgoing multiplex highways and P incoming and outgoing supermultiplex highways each formed of N multiplex highways and having 2aN time slots where a is the number of time slots in a multiplex highway. The supermultiplex highways are multiplexed two by two and with themselves to form double supermultiplex highways each having 2aN time slots. It results that there exists a double supermultiplex highway simultaneously containing any time slot assigned to a calling party and any time slot assigned to a called party whatever be these time slots. The buffer stores of the switching network unit can thus be rendered bidirectional and their number is P(P+1)/2 instead of P.sup.2 in the prior art.