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    CONSTRUCTIVE MODULE OF AN ELECTRONIC TELECOMMUNICATIONS EQUIPMENT, WITH AN INTERFACE TOWARDS A TESTING AND DIAGNOSING SYSTEM
    51.
    发明专利
    CONSTRUCTIVE MODULE OF AN ELECTRONIC TELECOMMUNICATIONS EQUIPMENT, WITH AN INTERFACE TOWARDS A TESTING AND DIAGNOSING SYSTEM 未知

    公开(公告)号：CA2250703A1

    公开(公告)日：1997-10-09

    申请号：CA2250703

    申请日：1997-04-01

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： MAGGIONI FLAVIO ,  BELFORTE PIERO

    IPC: G01R1/06 ,  G01R31/28 ,  H04M3/26 ,  H04B17/00 ,  G01R31/3181

    Abstract: A constructive module (1) of an electronic telecommunications equipment is associated with means (4, 5, 6, 7, 8, 9) interfacing it with a testing and diagnosing system. Said means can be connected at least temporarily and in noninvasive fashion and comprise: actuation probes (4), driven by control signals provided by the testing and diagnosing system, for the automatic and programmed insertion of test signals into predetermined points of the module, and monitoring probes (5) for taking from the monitoring points and transferring to the testing and diagnosing system signals present in the module. The probes (4, 5) are connected with the testing and diagnosing system by means of shielded micro-coaxial cables (7, 9). Conditioning devices (17), associated with the cables (7) connected to the actuation probes (4), provide a galvanic isolation between the testing and diagnosing system and the modules (1) under test.

    52.
    发明专利
    未知

    公开(公告)号：DK165207B

    公开(公告)日：1992-10-19

    申请号：DK286383

    申请日：1983-06-21

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： BELFORTE PIERO ,  GARETTI ENZO ,  PILATI LUCIANO

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

    Abstract: The PCM switching network is based on the use of switching units (UC1a ... UC8c) each equipped with a local controller using a microprocessor (CTR1a ... CTR8c), ancillary circuits for diagnosis (CDTE1 ... CDTU5), ancillary circuits for exchanging messages relating to network control between the local controllers (CRT1a ... CTR8c) and between local controllers and the distributed telephone control units (CTFa ... CTFc), and ancillary circuits (RTBE1 ... RTBU5) providing virtual channels (on the speech channels themselves) for transmission of said messages in a direction opposite to that of speech. Said switching units (UC1a ... UCBc) make it possible to provide self-routing modular PCM switching network structures for distributed-control telephone exchanges.

    55.
    发明专利
    未知

    公开(公告)号：AT29818T

    公开(公告)日：1987-10-15

    申请号：AT83106038

    申请日：1983-06-21

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： BELFORTE PIERO ,  GARETTI ENZO ,  PILATI LUCIANO

    IPC: H04Q3/52 ,  H04Q11/04

    Abstract: The PCM switching network is based on the use of switching units (UC1a ... UC8c) each equipped with a local controller using a microprocessor (CTR1a ... CTR8c), ancillary circuits for diagnosis (CDTE1 ... CDTU5), ancillary circuits for exchanging messages relating to network control between the local controllers (CRT1a ... CTR8c) and between local controllers and the distributed telephone control units (CTFa ... CTFc), and ancillary circuits (RTBE1 ... RTBU5) providing virtual channels (on the speech channels themselves) for transmission of said messages in a direction opposite to that of speech. Said switching units (UC1a ... UCBc) make it possible to provide self-routing modular PCM switching network structures for distributed-control telephone exchanges.

    56.
    发明专利
    未知

    公开(公告)号：IT1156369B

    公开(公告)日：1987-02-04

    申请号：IT6779082

    申请日：1982-06-22

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： BELFORTE PIERO ,  GARETTI ENZO ,  PILATI LUCIANO

    IPC: H04Q11/04 ,  H04Q3/52 ,  H04M

    Abstract: The PCM switching network is based on the use of switching units (UC1a ... UC8c) each equipped with a local controller using a microprocessor (CTR1a ... CTR8c), ancillary circuits for diagnosis (CDTE1 ... CDTU5), ancillary circuits for exchanging messages relating to network control between the local controllers (CRT1a ... CTR8c) and between local controllers and the distributed telephone control units (CTFa ... CTFc), and ancillary circuits (RTBE1 ... RTBU5) providing virtual channels (on the speech channels themselves) for transmission of said messages in a direction opposite to that of speech. Said switching units (UC1a ... UCBc) make it possible to provide self-routing modular PCM switching network structures for distributed-control telephone exchanges.

    TRANSCEIVER FOR FULL DUPLEX TRANSMISSION OF DIGITAL SIGNALS ON A SINGLE LINE
    60.
    发明专利
    TRANSCEIVER FOR FULL DUPLEX TRANSMISSION OF DIGITAL SIGNALS ON A SINGLE LINE 未知

    公开(公告)号：DE3063164D1

    公开(公告)日：1983-06-16

    申请号：DE3063164

    申请日：1980-10-03

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： BELFORTE PIERO ,  BORTIGNON RENZO

    IPC: H04L5/14

    Abstract: A transceiver inserted between a signal source and a two-wire or one-wire line, designed to transmit balanced or unbalanced digital signals to a remote station at the opposite end of the line while receiving similar signals from the latter station, comprises a first and a second amplifier with inputs connected to the line at a proximal and a distal end of a line-terminating impedance, respectively. Each amplifier has an inverting output connected to a noninverting output of the other amplifier, the two nodes formed between the interconnected outputs being connected to respective inputs of a differential third amplifier feeding a signal receiver. The gain of the first amplifier is half that of the second amplifier whereby the locally generated signals are suppressed in the output of the third amplifier. The several amplifiers are realized in integrated circuitry and may be provided with switches for selective changeover between a balanced and an unbalanced mode of operation.

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