Power saving apparatus and method for mobile terminal

摘要

A power saving apparatus and a method for a mobile terminal are provided. The method includes measuring a system load for a preset time during an application execution in a power saving mode, setting, when the measured system load exceeds a reference load level, a limit clock frequency as a maximum clock frequency for the power saving mode, measuring, in the power saving mode, the system load due to the application execution, performing, when the measured system load exceeds the reference load level, the application execution at the limit clock frequency, and performing, when the measured system load does not exceed the reference load level, the application execution at a system clock frequency corresponding to the measured system load, where performing the application execution at the limit clock frequency reduces a battery power consumption.

主权项

1. A power saving apparatus for a mobile terminal, the apparatus comprising:
a battery configured to supply power to individual components of the mobile terminal; a storage unit configured to store information regarding a maximum clock frequency for a normal operation mode and a limit clock frequency lower than the maximum clock frequency for a power saving mode; and a control unit configured to:
measure, for a period of time during an application execution in the power saving mode, a system load,count a number of occurrences of the maximum clock frequency in a preset time duration,set, when the number of counted occurrences is greater than at least one reference value, the limit clock frequency corresponding to the at least one reference value,perform the application execution at the limit clock frequency if the measured system load exceeds a reference load level, andperform the application execution at a system clock frequency corresponding to the measured system load, wherein the performing of the application execution at the limit clock frequency reduces a battery power consumption.