PLUG-IN CODE BLOCK Russian patent published in 2010 - IPC G06K19/07 

FIELD: physics; computer engineering.

SUBSTANCE: invention relates to protection of different objects from access by unauthorised persons, particularly to data carriers. The plug-in code block has a connector (1), an interface block (2), a control unit (3), a recording pulse-generating unit (4) and a memory unit (5). First inputs and outputs of the interface block (2) are respectively connected to the output and input of the connector (1). The input and first output of the control unit (3) are respectively connected to the second output and second input of the interface block (2), and the second output of the control unit (3) is connected to the input of the recording pulse-generating unit (4) whose output is connected to the input of the memory unit (5). The group of inputs-outputs and two groups of inputs of the memory unit (5) are respectively connected to a group of inputs-outputs and two groups of outputs of the control unit (3).

EFFECT: increased reliability and service life of the plug-in code block, as well as longer information storage period.

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