| 发明名称 |
DEPENDENT SYNCHRONOUS SYSTEM |
| 摘要 |
<p>PURPOSE:To reduce the dependant changeover to a necessary minimum, by inhibiting unnecessary trouble information for a specified time period, and to constitute a dependant synchronous network with high quality which can prevent the unstability when changing back by establishing the backward protection time.</p> |
| 申请公布号 |
JPS52104014(A) |
申请公布日期 |
1977.09.01 |
| 申请号 |
JP19760019948 |
申请日期 |
1976.02.27 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE;NIPPON ELECTRIC CO;FUJITSU LTD |
发明人 |
EGAWA TETSUAKI;INOUE TOMOJI;ICHIJIYOU KOUKICHI;YAMAMOTO HIDEHIKO;KATAGIRI HISASHI;TSUDA HARUO |
| 分类号 |
H04J3/06;H04L7/00;H04Q11/04 |
主分类号 |
H04J3/06 |
| 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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