发明名称 Data communication method and system therefor
摘要 In data communication, data not requiring secrecy are transmitted and received via an open communication network whose security is low, while data requiring secrecy are transmitted and received via a closed communication network whose security is higher than that of the open communication network.
申请公布号 US6178454(B1) 申请公布日期 2001.01.23
申请号 US19980107125 申请日期 1998.06.30
申请人 OKI ELECTRIC INDUSTRY, CO. 发明人 TSUNEYOSHI TAIJI;TAKEUCHI TOSHINAO
分类号 G06F15/00;G06F21/20;G06Q10/00;G06Q20/00;H04L29/06;H04M3/00;H04M11/00;(IPC1-7):G06F15/16 主分类号 G06F15/00
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