公开(公告)号：BR8102825A

公开(公告)日：1982-02-02

申请号：BR8102825

申请日：1981-05-07

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： PILATI L ,  BOSTICA B ,  BELFORTE P

IPC: H04Q3/52 ,  H04Q11/04 ,  H04Q11/08 ,  H04Q3/00

Abstract: The present PCM switching element is intended to be used in digital telephone exchanges for the making of switching or concentration stages of whatever capacity. … In fact, structures consisting of a plurality of such elements are easily performed thanks to use of a bit associated with each outgoing PCM channel, called "busy bit". … The switching element can be controlled by a commercially available microprocessor and can be made as an integrated circuit.

公开(公告)号：SE7800065A

公开(公告)日：1978-07-15

申请号：SE7800065

申请日：1978-01-03

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE P

IPC: H04L5/14