| 发明名称 |
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| 摘要 |
PURPOSE:To simplify a circuit for a maintenance device without sending out an operation mode assignment signal from the maintenance device at the time of a change-over to a standby device, and to simplify the control by eliminating the need of the control by software. |
| 申请公布号 |
JPS5759976(B2) |
申请公布日期 |
1982.12.17 |
| 申请号 |
JP19770093561 |
申请日期 |
1977.08.03 |
| 申请人 |
FUJITSU KK;NIPPON DENSHIN DENWA KOSHA;OKI DENKI KOGYO KK;NIPPON DENKI KK;HITACHI SEISAKUSHO KK |
发明人 |
MAENO SHINICHI;TAKEI AKIRA;MYAMOTO KOICHI;AOKI TOSHIRO;YOSHIDA HIRONOBU |
| 分类号 |
H04M3/22;H04M3/24;H04Q3/545 |
主分类号 |
H04M3/22 |
| 代理机构 |
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代理人 |
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