AUTOMATIC POWER-UP OF PORTABLE ELECTRONIC DEVICE BASED ON TIME-DEPENDENT EVENT

摘要

A method of controlling a portable electronic device includes receiving a power-down command, determining an automatic power-up date and time based on an earliest one of a next preset power-up and a next time-dependent event reminder, entering a power--down state, monitoring a date and time, and automatically powering up at the automatic power-up date and time.