发明授权
- 专利标题： Data communication system
- 专利标题（中）： 数据通信系统
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申请号： US11664521申请日： 2005-10-05
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公开(公告)号： US07907731B2公开(公告)日： 2011-03-15
- 发明人: Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Toru Shiozaki
- 申请人： Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Toru Shiozaki
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP2004-294113 20041006; JP2004-317186 20041029; JP2004-317187 20041029; JP2004-330980 20041115; JP2005-009559 20050117; JP2005-049460 20050224; JP2005-095794 20050329
- 国际申请： PCT/JP2005/018471 WO 20051005
- 国际公布： WO2006/038660 WO 20060413
- 主分类号： H04L9/12
- IPC分类号： H04L9/12
摘要：
A data communication system that enhances concealment by significantly increasing the time required for a wiretapper to decrypt a cipher text. The data communication system is constituted by connecting a data transmitting apparatus (13105) to a data receiving apparatus (11201) via a transmission path (110). In the data transmitting apparatus (13105), a multilevel encoding part (111) receives a predetermined first initial value (key information) and information data and generates a multilevel signal that varies in level substantially in a random number manner. A dummy signal superimposing part (118) superimposes a dummy signal on the multilevel signal. A modulating part (112) converts the multilevel signal to a modulated signal of a predetermined modulation form and transmits the modulated signal. The data receiving apparatus (11201) demodulates the modulated signal to output the multilevel signal, and receives a predetermined second initial value (key information) and the multilevel signal to reproduce the information data.
公开/授权文献
- US20080025511A1 Data Communication System 公开/授权日：2008-01-31
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