CODE DEVICE Russian patent published in 2006 - IPC G06K19/73 

FIELD: engineering of equipment for protecting various objects from access by unauthorized personnel, in particular, in case of data carriers.

SUBSTANCE: code device contains connector, circuits protection block, mating block, control block and memory block. Input, first and second outputs of control block are connected, respectively, to first output, first and second inputs of mating block. Third input, second and third outputs of mating block are connected, respectively, to first output, first and second inputs of circuit protection block. Third and fourth inputs, second and third outputs of circuit protection block are connected, respectively, to first and second outputs, first and second inputs of connector, while fourth output is connected to input of memory block. Group of inputs-outputs and two groups of inputs of memory block are connected, respectively, to a group of inputs-outputs and two groups of outputs of control block.

EFFECT: increased reliability and lifetime of code device and provision of protection of its external circuits from influence of interference of electric origin.

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