Abstract: An apparatus and method for strobe charging is disclosed. The apparatus and method can dynamically adjust a charging current according to current power level of a battery, thereby stabilizing the operating voltage of the battery and thus using the battery power to the full. The apparatus and method employs a control circuit to detect the current power level of the battery, and dynamically adjusts the charging current, generated from the battery, according to the detected current power level.

Abstract: An exemplary system of encrypting and decrypting a digital file in a digital device is disclosed. The digital file includes an encrypting module and a decrypting module. The encrypting module includes a file-choosing block choosing a digital file to be encrypted, a code-building block producing a code for the chosen digital file and an encrypting block rendering the code for storing in the EXIF of the chosen digital file. The decrypting module includes a file-selecting block selecting an encrypted digital file, a code-taking block receiving an input code, a code-checking block comparing the input code with the code stored in the EXIF, and a decrypting block decrypting the selected file when the input code is identical to the code stored in the EXIF.

Abstract: An apparatus and method for strobe charging is disclosed. The apparatus and method can dynamically adjust a charging current according to current power level of a battery, thereby stabilizing the operating voltage of the battery and thus using the battery power to the full. The apparatus and method employs a control circuit to detect the current power level of the battery, and dynamically adjusts the charging current, generated from the battery, according to the detected current power level.