| Original document(10 pages) Authorized document(9 pages) 中文版 |
The present invention is referred to a communication device. The previous recordable telephone can not implement timing record and real-time automatic stop. The circuit of unmanned automatic and recordable telephone is composed of starting circuit and maintaining circuit, answering circuit, recording circuit, stop and call identifying circuit. It can implement fully automatic control the unmanned telephone. It has the advantages of advanced design, full function, reliable operation and low cost. |
Application Number
申请号 |
86105347 |
Application Date
申请日 |
1986.08.27 |
| Title 名称 |
Circuit of unmanned automatic and recordable telephone |
Publication Number
公开号 |
1017006 |
Publication Date
公开日 |
1988.03.09 |
| Approval Pub. Date |
|
Granted Pub. Date |
1991.10.09 |
| International Classification 分类号 |
H04M1/64 |
Applicant(s) Name
申请人 |
Tieling Division of Liaoning Prov., PLA |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
TIAN HONGXIANG HOU JINGMING |
| More information 更 多 信 息 |
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