| 发明名称 |
TELEPHONE SET |
| 摘要 |
PURPOSE:The impedance viewed from the electric terminal of a receiver is used as a transformer for stopping side tones in order to eliminate the need for a hybrid transformer, thereby realizing the low-cost, compact and lightweight circuit. |
| 申请公布号 |
JPS5342606(A) |
申请公布日期 |
1978.04.18 |
| 申请号 |
JP19760117520 |
申请日期 |
1976.09.30 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
OOGA TOSHIROU;SHIRATORI YOSHIO;HIDA MIZUHIRO |
| 分类号 |
H04M1/58;H04M1/60;(IPC1-7):04M1/58 |
主分类号 |
H04M1/58 |
| 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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