发明名称 |
Data transmitting apparatus, data receiving apparatus and data communication apparatus |
摘要 |
A data communication apparatus is highly concealable and significantly increases time necessary for an eavesdropper to analyze cipher text. A multi-level code generation section generates, by using predetermined key information, a multi-level code sequence in which a signal level changes so as to be random numbers. The multi-level processing section combines a multi-level code sequence and information data, and generates a multi-level signal having a level corresponding to a combination of the multi-level code sequence and the information data. In the multi-level code generation section, a random number sequence generation section generates a binary random number sequence by using the predetermined key information. A multi-level conversion section generates a multi-level code sequence from the binary random number sequence in accordance with a predetermined encoding rule.
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申请公布号 |
US8189787(B2) |
申请公布日期 |
2012.05.29 |
申请号 |
US20060063003 |
申请日期 |
2006.10.13 |
申请人 |
SADA TOMOKAZU;FUSE MASARU;FURUSAWA SATOSHI;IKUSHIMA TSUYOSHI;PANASONIC CORPORATION |
发明人 |
SADA TOMOKAZU;FUSE MASARU;FURUSAWA SATOSHI;IKUSHIMA TSUYOSHI |
分类号 |
H04L29/06 |
主分类号 |
H04L29/06 |
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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