Adaptive power management method in portable electronic device

A power management system in a portable electronic device, comprising:

• a reception module to receive, store and transmit a plurality of pieces of sub-state information indicating setting states of functions from a user interface (UI);
• a combining module to receive the plurality of pieces of sub-state information from the reception module and constructs and transmit a field by combining sectors, each formed with a predetermined number of bits, indicating the plurality of pieces of sub-state information;
• an analysis module to receive the field from the combining module, analyze the sub-state information of the field and transmit an analysis result;
• and
• an adaptation module to receive the analysis result and select a clock frequency corresponding to the analyzed field from among predetermined clock frequencies to operate a processor of the portable electronic device and to apply the selected clock frequency to the processor.

A portable electronic device comprising a power management system comprising:

• a user interface to transmit state and sub-state information;
• a control module to receive and store a plurality of pieces of sub-state information indicating setting states of functions from the user interface, to construct a field by combining sectors, each formed with a predetermined number of bits, indicating the plurality of pieces of sub-state information, to analyze the sub-state information of the field and select a clock frequency corresponding to the analyzed field from among predetermined clock frequencies to operate a processor of the portable electronic device and to apply the selected clock frequency to the processor;
• and
• a memory to store data correlating a plurality of unique fields containing sub-state information with corresponding predetermined clock frequencies.