APPARATUS AND METHOD FOR VARIABLE CONTROLLING MAIN CLOCK FREQUENCY IN THE MOBILE COMMUNICATION TERMINAL

摘要

The present invention provides a variable main clock frequency control device in a mobile communication terminal to reduce the current consumption by varying the main clock according to the CPU utilization rate corresponding to each task operating environment in a mobile communication terminal operating a multitasking OS program and It is about a method.;According to the present invention, when a task is created or deleted while a multitasking OS program is operated in a mobile communication terminal, a new CPU utilization rate is newly calculated by referring to CPU consumption information of a corresponding task, and the main clock of the CPU is calculated according to the calculated CPU usage rate. By controlling the frequency variably, current consumption in a multitasking OS environment can be reduced, and the main standby frequency of the CPU is varied according to the task operating environment of the mobile communication terminal, thereby reducing the reception latency of the mobile terminal operating on battery power. The effect of increasing can be obtained.;Mobile communication terminal, main clock frequency, multitasking OS, CPU utilization, clock variable control, current consumption, task