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公开(公告)号：IT1128291B
公开(公告)日：1986-05-28
申请号：IT6774580
申请日：1980-05-13
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BELFORTE PIERO , BOSTICA BRUNO , PILATI LUCIANO
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.
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公开(公告)号：CA1201189A
公开(公告)日：1986-02-25
申请号：CA423505
申请日：1983-03-14
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BELFORTE PIERO , BOSTICA BRUNO , BOVO AMILCARE , CANATO LUIGI , PILATI LUCIANO
Abstract: A PCM switching unit, adapted to carry out the insertion of a word into a PCM channel, the transfer of a word from a PCM channel or from the switching unit control memory towards the control unit, and the extraction of a channel, in particular channel 0, from one or more PCM channels. These modes of operation are carried out by using a bidirectional data bus, for the interconnection between the switching unit and the control unit, which may be a microprocessor.
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公开(公告)号：DE3165744D1
公开(公告)日：1984-10-04
申请号：DE3165744
申请日：1981-05-12
Applicant: CSELT CENTRO STUDI LAB TELECOM
Inventor： BELFORTE PIERO , BOSTICA BRUNO , PILATI LUCIANO
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.
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