| 发明名称 |
FAILURE DETECTION SYSTEM FOR AUDIO RESPONSE UNIT |
| 摘要 |
<p>PURPOSE:To enable to detect failures of unit automatically and during ON-line throught the use of vacant time, by providing a circuit coupling audio output system with PB signal fetch system.</p> |
| 申请公布号 |
JPS53140911(A) |
申请公布日期 |
1978.12.08 |
| 申请号 |
JP19770055312 |
申请日期 |
1977.05.16 |
| 申请人 |
HITACHI LTD |
发明人 |
SAKAI HISAO;SAKAGUCHI MITSUGI |
| 分类号 |
G06F3/16;H04M3/22;H04M11/00 |
主分类号 |
G06F3/16 |
| 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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