MOBILE TELEPHONE SYSTEM WITH PREPAID CARD,申请号EP19990909020-传众专利搜索

MOBILE TELEPHONE SYSTEM WITH PREPAID CARD

申请公布号：EP1064777(A1)

申请号：EP19990909020

申请日期：1999.03.17

申请公布日期：2001.01.03

申请人：

GEMPLUS

发明人：BASQUIN, BRUNO

分类号：H04M15/00;H04M15/30;H04M17/00;H04Q7/38;(IPC1-7):H04M17/00

主分类号：H04M15/00

摘要：The invention concerns mobile telephones with prepaid cards, characterised in that the prepaid card (18) contains the rate fixing parameters (120) used by the mobile telephone (16) to compute the amounts to be debited (126) on the card pay units counter. The message exchanges between the mobile telephone and the card are encrypted to ensure the security of transactions, preferably by using a cryptographic certificate.