<p>A PCM switching element intended to be used in digital telephone exchanges for the making of switching or concentration stages of whatever capacity can be controlled by a commercially available microprocessor and can be made as an integrated circuit. Structures consisting of a plurality of such elements are readily designed owing to the use of a "busy" bit associated with each outgoing PCM channel.</p>
申请公布号
CA1159541(A)
申请公布日期
1983.12.27
申请号
CA19810375162
申请日期
1981.04.10
申请人
CSELT-CENTRO STUDI E. LABORATORI TELECOMUNICAZIONI S.P.A.