METHOD AND APPARATUS FOR ERASING MEMORY DATA

摘要

A memory erasing method and apparatus for erasing important data of a nonvolatile memory within the apparatus to prevent illegal access using attitude information measured in an inertial measurement sensor and a low power microprocessor regardless of the power supply state of the apparatus. The apparatus includes a power switching circuit unit for selecting one from among an external power source and a battery. An inertial measurement sensor measures attitude information of the memory erasing apparatus, using power supplied from the external power source or the battery. A low power microprocessor erases important data from a memory device in a first manner using power from the external power source, and in a second manner using power from the battery, the first manner being different from the second manner.

主权项

1. A method for erasing memory data, comprising:
determining, by a low power microprocessor, which of external power and battery power is supplied for measuring attitude information from an inertial measurement sensor; erasing, by the low power microprocessor, important data from a memory device in a first manner if external power is determined to be supplied; and erasing, by the low power microprocessor important data from the memory device in a second manner if battery power is determined to be supplied, the first manner being different from the second manner.