Safeguarding user data stored in mobile communications devices

Telecommunications – Radiotelephone system – Programming control

Reexamination Certificate

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Details

C455S410000, C455S411000, C455S418000

Reexamination Certificate

active

07054624

ABSTRACT:
The present invention permits safeguarding of private data entered into a memory chip of a cell phone by permitting the cell phone owner to erase the data in a lost or stolen phone, using an preset erase code and erase command in the cell phone or the network base station, and disabling or erasing circuitry on the memory chip, preferably an EEPROM chip.

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International Search Report, PCT/US04/09224, filed on Oct. 13, 2004.

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