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发明名称
Digital data cryptographic system
摘要
申请公布号
US5091938(B1)
申请公布日期
1997.02.04
申请号
US19900563165
申请日期
1990.08.06
申请人
NEC HOME ELECTRONICS, LTD.
发明人
THOMPSON JOHN R.;HUNTING C. J.;PHIPPS WILLIAM L.;RAYNESFORD STEVEN J.;RITTMUELLER PHILIP H.
分类号
H04K1/02;H04N7/167;H04N7/171;(IPC1-7):H04N9/02
主分类号
H04K1/02
代理机构
代理人
主权项
地址
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