发明名称 |
APPARATUS FOR THE COLLECTION OF TELEPHONE CRITERIA FROM ELECTROMECHANICAL EXCHANGE DEVICES |
摘要 |
The apparatus for the collection of telephone criteria from electromechanical exchange devices is connected to the wires on which criteria are present, through extracting means (DP) that are completely built up of electronic components and are apt to extract both positive and negative voltages from a same wire and to supply a local microprocessor (EL) with digitized samples represented by bit patterns independent of fluctuations in time of the exchange voltage used for criteria generation. A control logic (LC) coordinates the operations of the extracting means with those of microprocessor (EL). |
申请公布号 |
DE3170095(D1) |
申请公布日期 |
1985.05.30 |
申请号 |
DE19813170095 |
申请日期 |
1981.05.04 |
申请人 |
CSELT CENTRO STUDI E LABORATORI TELECOMUNICAZIONI S.P.A. |
发明人 |
ASTEGIANO, LUCIANO;ROSBOCH, LUCIANO |
分类号 |
H04M15/04;(IPC1-7):H04M15/04;H04M3/22 |
主分类号 |
H04M15/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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