| 发明名称 |
SUBSCRIBER CIRCUIT SYSTEM BOTH FOR TELEPHONE AND DATA |
| 摘要 |
PURPOSE:To enable the service both for telephone and data as requested by subscribers, by transmitting DC signal to the subscriber circuit, in time-sharing telephone exchanging network. |
| 申请公布号 |
JPS5351904(A) |
申请公布日期 |
1978.05.11 |
| 申请号 |
JP19760126067 |
申请日期 |
1976.10.22 |
| 申请人 |
HITACHI LTD |
发明人 |
KAMATA KOUZOU;NISHIYAMA SHINZOU |
| 分类号 |
H04M3/00;H04M11/00;H04M11/06;H04Q3/72 |
主分类号 |
H04M3/00 |
| 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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