| 发明名称 |
CONNECTION SIGNAL CONVERSION SYSTEM FOR CARRIER TELEPHONE |
| 摘要 |
PURPOSE:To secure an accurate transfer of the connection signal by combining more than three kinds of signal form and carrying out transmission and reproduction of the signal, and thus to increase the rtansmission capacity for the signal information. |
| 申请公布号 |
JPS5320709(A) |
申请公布日期 |
1978.02.25 |
| 申请号 |
JP19760095093 |
申请日期 |
1976.08.10 |
| 申请人 |
NIPPON ELECTRIC CO |
发明人 |
ROKUGOU YOSHINORI;SATOU HITOSHI |
| 分类号 |
H04M7/16;(IPC1-7):04M7/16 |
主分类号 |
H04M7/16 |
| 代理机构 |
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代理人 |
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| 地址 |
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