Optimizing the DRAM refresh count for merged DRAM/logic LSIs
ISLPED '98 Proceedings of the 1998 international symposium on Low power electronics and design
A survey of design techniques for system-level dynamic power management
IEEE Transactions on Very Large Scale Integration (VLSI) Systems - Special section on low-power electronics and design
Low-power color TFT LCD display for hand-held embedded systems
Proceedings of the 2002 international symposium on Low power electronics and design
A compressed frame buffer to reduce display power consumption in mobile systems
Proceedings of the 2004 Asia and South Pacific Design Automation Conference
Block-based multiperiod dynamic memory design for low data-retention power
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Improving energy efficiency for mobile platforms by exploiting low-power sleep states
Proceedings of the 9th conference on Computing Frontiers
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We propose a technique to reduce the energy consumption of the frame buffer memory, based on the spatial locality of images and display frames. Our scheme reduces energy by selectively avoiding reads from the frame buffer when identical adjacent pixels are detected. This is made possible by using an auxiliary memory that stores the locality information. The proposed architecture allows to dynamically update the locality information, and, unlike previous approaches, it works virtually independent of the size and position of the updates of the display frames. Experimental results evaluated on a set of typical graphical applications show a reduction of about 40% of frame buffer reads.