| 发明名称 |
PRIVACY COMMUNICATION SET |
| 摘要 |
PURPOSE:To prevent interception of the content of communication, by superimposing stationary signal after polarity-inverting the original signal according to a given rule and transmitting again with plarity inversion. |
| 申请公布号 |
JPS5357903(A) |
申请公布日期 |
1978.05.25 |
| 申请号 |
JP19760132884 |
申请日期 |
1976.11.05 |
| 申请人 |
TOKYO SHIBAURA ELECTRIC CO |
发明人 |
ASAKAWA SHIGERU;SUGIYAMA FUMIO;NAKAMURA MAKOTO;OKAI TSUKASA |
| 分类号 |
H04K1/02;(IPC1-7):04K1/02 |
主分类号 |
H04K1/02 |
| 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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