Title:
【発明の名称】電磁誘導カードの不正防止クレジット回収方法
Document Type and Number:
Japanese Patent JPH11505045
Kind Code:
A
Abstract:
Invention patent for "a fraud-proof credit collecting method on inductive cards" refers to a reading and credit burning out process on inductive debit cards based on the division of the set of credit cells into sectors, for the purpose of collecting credits, in which all the credit cells of each sector are to be burnt out before proceeding to the next sector. The burning out sequence order of the credit cells is pseudo-random and standardized, being invariant in relation to the orientation indicia contained on the card itself. On inserting the card into the reading head, a mapping of all non-burnt-out cells as well as those burnt out is made and compared with said burning out sequence order and whenever any card does not comply to the standardized burning out sequence order it is considered as frauded and will be immediatly rejected.
Inventors:
Dos Santos, Guildmar
Elias, Marcos, Biscaro
Fernandos, Rubens, Ramos
Elias, Marcos, Biscaro
Fernandos, Rubens, Ramos
Application Number:
JP53287396A
Publication Date:
May 11, 1999
Filing Date:
May 05, 1995
Export Citation:
Assignee:
Telecom Nikacoes Brasileiras Socieda/Anonima-Telebras
International Classes:
G06K7/08; G06K17/00; G06K19/067; G07F7/08; G06K19/10; G07F7/02; (IPC1-7): G06K17/00; G06K19/10; G07F7/08
Attorney, Agent or Firm:
Akira Asamura (3 outside)