Data storage device and detection method

Details Data storage device and detection method Data storage device and detection method

2006-01-03

2006-01-03

Vu, Kim (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

C713S194000

Reexamination Certificate

active

06983378

ABSTRACT:
A memory stores confidential data Da. An unqualified person who intends to irregularly read out the confidential data Da tries to open a cover of a housing, break the housing, or drill through the housing. The housing deflects by physical impact applied thereto. Positional relations among pairs of electrodes also deflects in accordance with the deflection of the housing. The deflection of the positional relations among the electrodes shifts capacitance at the electrodes. A data management processor deletes the confidential data Da when it detects the capacitance shifts.

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patent: 6172616 (2001-01-01), Johnson et al.
patent: 6182896 (2001-02-01), Momose

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