| 发明名称 |
RELEASE SIGNAL TRANSMISSION SYSTEM |
| 摘要 |
PURPOSE:To simplify the multiple circuit number of the incoming trunk and to enable the release of the preceding station, by providing the transmitting means for the release signal with every register link frame in the automatic exchange. |
| 申请公布号 |
JPS5440504(A) |
申请公布日期 |
1979.03.30 |
| 申请号 |
JP19770106641 |
申请日期 |
1977.09.07 |
| 申请人 |
HITACHI LTD |
发明人 |
CHIKIRA HIROSHI;HAYAKAWA YOSHIHIKO |
| 分类号 |
H04Q3/54;H04Q1/30;H04Q3/42 |
主分类号 |
H04Q3/54 |
| 代理机构 |
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代理人 |
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| 地址 |
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