1
Martin M Atalla: Multilevel security apparatus and method. Atalla Technovations, A C Smith, December 8, 1981: US04304990 (138 worldwide citation)

A card-coding system and method preserves the security of the encoding process against duplication and counterfeiting of cards by securing the interactions under the control of the individual and then of the issuing institution. Multilevels of offset codes are generated in successive interactions so ...


2
Martin M Atalla, Webster D Hopkins: Multilevel security apparatus and method with personal key. October 23, 1990: US04965568 (86 worldwide citation)

A method and apparatus for electronic financial transaction processing systems used by customers of certain credit or electronic banking card-issuing institutions. The present invention involves two levels of secure interaction between the customer and the card-issuing institution. The first level o ...


3
Martin M Atalla: Multilevel security apparatus and method. Atalla Technovations, A C Smith, May 4, 1982: US04328414 (41 worldwide citation)

A card-encoding system and method preserves the security of the encoding process against duplication and counterfeiting of cards by securing the interactions under the control of the individual and then of the issuing institution. Multilevels of offset codes are generated in successive interactions ...


4
Martin M Atalla: Multilevel security apparatus and method. Atalla Technovations, A C Smith, November 2, 1982: US04357529 (33 worldwide citation)

A card-encoding system and method preserves the security of the encoding process against duplication and counterfeiting of cards by securing the interactions under the control of the individual and then of the issuing institution. Multilevels of offset codes are generated in successive interactions ...


5
Atalla Martin M, Hopkins Webster D: Multilevel security apparatus and method with personal key.. Atalla, September 5, 1990: EP0385400-A2 (8 worldwide citation)

A method and apparatus concerning electronic financial transaction processing systems used by customers of certain credit or electronic banking card-issuing institutions are disclosed. The present invention involves two levels of secure interaction between the customer and the card-issuing instituti ...


6
Multilevel security apparatus and method. Atalla Technovations, August 19, 1981: GB2069203-A (2 worldwide citation)

A card-encoding system and method preserves the security of the encoding process against duplicaton and counterfeiting of cards by securing the interactions under the control of the individual and then of the issuing institution. Multilevels of offset codes are generated in successive interactions s ...


7
Atalla Martin M, Hopkins Webster D: Systeme de securite multiniveau comportant lutilisation de codes personnels, Multilevel security apparatus and method with personal key. Atalla Corporation, SIM & MCBURNEY, June 6, 1995: CA2010345

A method and apparatus ng electronic financial transaction processing systems used by customers of certain credit or electronic banking card-issuing institutions. The present invention involves two levels of secure interaction between the customer and the card-issuing institution. The first level of ...


8
Atalla Martin M: Dispositif et methode de securite a niveaux multiples de codage, Multilevel security apparatus and method. Atalla Technovations, SIM & MCBURNEY, July 12, 1983: CA1149958

MULTILEVEL SECURITY APPARATUS AND METHODAbstract of the Disclosure A card-encoding system and method preserves the securityof the encoding process against duplication and counterfeitingof cards by securing the interactions under the control of theindividual and then of the issuing institution. Multi ...


9
Atalla Martin M: Appareil et methode multistage de protection contre lalteration, lemploi frauduleux et la contrefacon de cartes de credit, Multilevel security apparatus and method. Atalla Technovations, SIM & MCBURNEY, February 14, 1984: CA1162306

MULTILEVEL SECURITY APPARATUS AND METHODAbstract of the Disclosure A card-encoding system and method preserves the securityof the encoding process against duplication and counterfeitingof cards by securing the interactions under the control of theindividual and then of the issuing institution. Multi ...


10
Atalla Martin M: Multilevel security apparatus and method. Atalla Technovations, August 7, 1981: FR2475254-A1

A card-encoding system and method preserves the security of the encoding process against duplicaton and counterfeiting of cards by securing the interactions under the control of the individual and then of the issuing institution. Multilevels of offset codes are generated in successive interactions s ...