USER DATA PRESERVATION METHOD FOR PORTABLE TERMINAL AND CIRCUIT THEREFOR

摘要

Disclosed are a method and a circuit for preserving user data temporarily stored in a volatile memory of a mobile terminal. When there is a change in the user data, the changed user data is formatted in a file and backed up in a nonvolatile memory. Therefore, it is possible to stably preserve the user data without using a backup battery for backing up the operation power for the volatile memory.