Patent ID: 9582053
Date: 2017-02-28
CPC Classifications: G06F,G11C,Y02D

Claim:
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 the external power is determined to be supplied; and erasing, by the low power microprocessor, the important data from the memory device in a second manner if the battery power is determined to be supplied, the first manner being different from the second manner, wherein erasing the important data from the memory device in the second manner comprises: checking, by the low power microprocessor, the attitude information from the inertial measurement sensor using the battery power whenever a timer event occurs while the low power microprocessor is operating in a standby state; comparing the attitude information from the inertial measurement sensor with a predetermined threshold value; and blocking the battery power from being supplied to the memory device to erase the important data from the memory device if results of the comparison are consistent with a predetermined determination condition for erasing memory data.