Dynamic fuzzy controller based multilayered architecture for extended battery life in mobile handheld devices

Recently, the mobile phones are evolving into mobile multifunctional terminals with the incorporation of various useful functions; the display devices also have advanced in terms of size, design, and resolution as a user interface of the mobile phone. Many low power display techniques have been proposed for example dynamic luminance scaling, liquid crystal orientation shift, variable frame refresh, organic LEDs (light emitting diodes) etc. It has been observed that optimizing software alone or hardware alone the solution might not be most optimal. The paper describes the design of a dynamic fuzzy controller based multilayered architecture which is a combination of software and hardware levels to interface between software application layer and physical layer to eventually control the current through LEDs of cell phone and thereby improving battery life depending on user choices and applications running on mobile devices.