Fiscal data recorder programmed to write only non-blank...

Details Fiscal data recorder programmed to write only non-blank... Fiscal data recorder programmed to write only non-blank...

2011-03-22

2011-03-22

Kim, Hong (Department: 2185)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Tamper resistant

C705S064000, C705S019000, C705S016000, C711S163000, C726S034000, C235S002000

Reexamination Certificate

active

07913097

ABSTRACT:
A fiscal data recorder for storing transaction related data in a point of sale system is provided with a processing unit receiving the transaction related data. Memory in communication with the processing unit is operable to store the transaction related data. A protection circuit acting between the processing unit and the memory inhibits the electronic tampering with the transaction data stored in the memory.

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