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公开(公告)号:EP0971502B1
公开(公告)日:2006-01-11
申请号:EP99203397.7
申请日:1991-05-22
Applicant: STMicroelectronics Limited
Inventor: Simpson, Robert J
CPC classification number: H04L1/0063 , H04L1/0057 , H04L1/0083 , H04L7/0008 , H04L7/0037 , H04L7/0041 , H04L7/033 , H04L7/048