发明名称 |
Information transmission method and apparatus |
摘要 |
The present invention provides an information transmission apparatus and method for an information transmission system where encrypted information comprised of a plurality of information units each hierarchically encrypted and multiplexed to each other is communicated between at least two parties, wherein the information is being encrypted for transmission. The information transmission system is constructed by a transmitting unit and a receiving unit. |
申请公布号 |
US6243469(B1) |
申请公布日期 |
2001.06.05 |
申请号 |
US19980154165 |
申请日期 |
1998.09.16 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KATAOKA MITSUTERU;HARADA TAKENOSUKE;MACHIDA KAZUHIRO;MASUDA ISAO |
分类号 |
H04L9/00;H04L29/06;H04N7/167;(IPC1-7):H04N7/167 |
主分类号 |
H04L9/00 |
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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