FIELD: purse-card recharging for clearing transfers. SUBSTANCE: purse-card has semiconductor integrated-circuit arrangement incorporating at least logic address and control circuits and nonvolatile storage; purse-card is designed for erasing units of value saved in locations of its nonvolatile storage only upon entering carry value in storage location of partial area next in rank of significance that has not been entered earlier. Purse-card recharging method is given in description of invention. EFFECT: provision for recharging purse-card to keep it functioning as document for payment upon depreciation. 14 cl, 9 dwg
Authors
Dates
2001-04-27—Published
1996-04-09—Filed