| 发明名称 |
REMOTE CONFERENCE SYSTEM |
| 摘要 |
PURPOSE:To improve the use and efficiency of circuits and make it possible to hold a conference reliably by reserving circuits and connecting conference room units through a switching network. |
| 申请公布号 |
JPS5399706(A) |
申请公布日期 |
1978.08.31 |
| 申请号 |
JP19770014470 |
申请日期 |
1977.02.12 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
IKEZAWA HIDEKI |
| 分类号 |
H04M3/00;H04M3/42;H04M3/56;H04M7/00;H04N7/14;H04N7/15 |
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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