Portable electronic device for safe communication system, and method for initializing its parameters
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United States of America Patent
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Oct 23, 2001
Issued Date -
N/A
app pub date -
Feb 18, 2000
filing date -
Aug 21, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
This device includes data storage unit, interface unit with an external tool for loading data into the storage unit, data processing unit including initialization unit for enabling modification of a specific secret personalizing access code and loading of personalizing data into the storage unit, first loading unit controlled by the specific access code for loading into the storage unit reprogrammable particular secret personalizing access codes assigned to personalizing in the device a plurality of functions, second loading unit controlled by the particular access codes for loading into the storage unit particular personalizing data assigned to the implementation of the functions, and inhibitor unit for authorizing, for each of the functions, only in response to the application of one particular access code already assigned to the function, (i) modification of the particular access code and (ii) the loading of the particular personalizing data.
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