公开(公告)号：DE2538912A1

公开(公告)日：1976-03-25

申请号：DE2538912

申请日：1975-09-02

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  PERUCCA GIOVANNI

IPC: H04Q11/04

Abstract: A switching station for a telecommunication system, operating with pulse-code modulation, serves a multiplicity of incoming and outgoing PCM channels each consisting of a succession of 8-bit words cyclically interleaved with the words of 31 other channels in an assigned time slot of a 32-channel frame, 32 such frames being received and transmitted over as many signal paths forming a frame group. There are n incoming frame groups and n outgoing frame groups with synchronized bit phases in all the spatially separated channels thereof. A central processor controls the concurrent storage of all the incoming bits of a given phase in n pairs of 16-section input memories, each memory section consisting of 8 stages for the bits of a respective word from an incoming channel on a receiving signal path. During each time slot all the bits of each stored word are read out in parallel from the corresponding input-memory section into a similar section of an output memory from which they can be serially fed to a transmitting signal path during a period allocated to a selected outgoing channel. Thus, any incoming channel can communicate with any outgoing channel in the course of each frame.

公开(公告)号：AU706919B2

公开(公告)日：1999-07-01

申请号：AU2635697

申请日：1997-04-01

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  MAGGIONI FLAVIO

IPC: G01R1/06 ,  G01R31/28 ,  H04M3/26

Abstract: An electronic telecommunications module has circuit components and conductors forming a telecommunications circuit having insertion points at which signals can be applied for test purposes and monitoring points from which responses can be tapped. The insertion and monitoring probes are mounted on the module and are connected to the respective points by shielded microcoaxial cables and the probes are connected by shield and microcoaxial cables on the connectors to allow interfacing between the particular module and the testing and diagnostic system.

公开(公告)号：NO984598L

公开(公告)日：1998-12-02

申请号：NO984598

申请日：1998-10-01

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  MAGGIONI FLAVIO

IPC: G01R31/28 ,  H04M3/26 ,  G01R1/06

Abstract: An electronic telecommunications module has circuit components and conductors forming a telecommunications circuit having insertion points at which signals can be applied for test purposes and monitoring points from which responses can be tapped. The insertion and monitoring probes are mounted on the module and are connected to the respective points by shielded microcoaxial cables and the probes are connected by shield and microcoaxial cables on the connectors to allow interfacing between the particular module and the testing and diagnostic system.

公开(公告)号：NO984598D0

公开(公告)日：1998-10-01

申请号：NO984598

申请日：1998-10-01

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  MAGGIONI FLAVIO

IPC: G01R31/28 ,  H04M3/26 ,  G01R1/06 ,  G01R

Abstract: An electronic telecommunications module has circuit components and conductors forming a telecommunications circuit having insertion points at which signals can be applied for test purposes and monitoring points from which responses can be tapped. The insertion and monitoring probes are mounted on the module and are connected to the respective points by shielded microcoaxial cables and the probes are connected by shield and microcoaxial cables on the connectors to allow interfacing between the particular module and the testing and diagnostic system.

公开(公告)号：NO983884L

公开(公告)日：1998-08-24

申请号：NO983884

申请日：1998-08-24

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  MAGGIONI FLAVIO

IPC: G01R31/00 ,  G01R31/28

Abstract: A probe for fault-actuation devices has a transistor which is utilized to insert a reference signal into a fault-insertion point. The emitter and collector are connectable to the fault-insertion point and a reference signal and a capacitor with a capacitance greater than the capacitance of parasitic components is connected between the base and the emitter.

公开(公告)号：ITTO980676D0

公开(公告)日：1998-08-03

申请号：ITTO980676

申请日：1998-08-03

Applicant: CSELT CENTRO STUDI LAB TELECOM ,  HDT ITALIA S R L

Inventor： CALCAGNO PIERO ,  BELFORTE PIERO

IPC: G01R31/28

公开(公告)号：IT1285299B1

公开(公告)日：1998-06-03

申请号：ITTO960168

申请日：1996-03-06

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  MAGGIONI FLAVIO

IPC: G01R31/00 ,  G01R31/28

Abstract: A probe for fault-actuation devices has a transistor which is utilized to insert a reference signal into a fault-insertion point. The emitter and collector are connectable to the fault-insertion point and a reference signal and a capacitor with a capacitance greater than the capacitance of parasitic components is connected between the base and the emitter.

公开(公告)号：CA2248315A1

公开(公告)日：1997-09-12

申请号：CA2248315

申请日：1997-03-05

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  MAGGIONI FLAVIO

IPC: G01R31/00 ,  G01R31/28 ,  G01R1/06

Abstract: The probe (10) comprises a transistor (12) of which, in use, the collector and the emitter are connected to the fault insertion point (Pi) and to a reference signal level (M; ~Vcc), respectively. The fault insertion is carried out by bringing the transistor to saturation condition. The effects of the parasitic capacitive coupling between the collector and the base of the transistor (12) are eliminated by placing, between the base and the emitter, a capacitor (19) whose capacitance is substantially higher than said parasitic capacitance. Means (20) for monitoring the current absorbed in correspondence with the fault insertion point are also provided.

公开(公告)号：DK161292C

公开(公告)日：1991-12-09

申请号：DK115983

申请日：1983-03-10

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  BOSTICA BRUNO ,  BOVO AMILCARE ,  CANATO LUIGI ,  PILATI LUCIANO

IPC: H04Q3/52 ,  H04Q11/04

公开(公告)号：DK155480B

公开(公告)日：1989-04-10

申请号：DK208681

申请日：1981-05-12

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BELFORTE PIERO ,  BOSTICA BRUNO ,  PILATI LUCIANO

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

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.