Data exchange system comprising portable data processing units

Details Data exchange system comprising portable data processing units Data exchange system comprising portable data processing units

G - Physics

06

F

G06F 13/14 (2006.01)

Patent

CA 2466650

Data exchange system includes at least one portable data processing unit (5) having data communication elements (14), processing device (15) and memory elements (16). The latter includes an executive program (17) and one or more application descriptions (18(1) ...18(n)). Each application description has at least one interaction context (19(1)...) comprising commands, data elements, data references, procedures, access conditions, and external references. The structure of the data elements and the data references, as well as other references, is chosen in such a way that a very efficient use of the restricted memory space of, for example, smart cards is obtained.

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