Perceptual quality preserving SRAM architecture for color motion pictures

Authors:
Wen Yueh;Minki Cho;Saibal Mukhopadhyay
Affiliations:
School of Electrical and Computer Engineering, Atlanta, GA;School of Electrical and Computer Engineering, Atlanta, GA;School of Electrical and Computer Engineering, Atlanta, GA
Venue:
Proceedings of the Conference on Design, Automation and Test in Europe
Year:
2013

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Abstract

This work proposes a low power methodology for video framebuffers to preserve the perceptual quality while reducing SRAM power. The bank-wise voltage scaling combined with error masking circuitry is proposed where voltage domains are separated according to the importance of luminous and color channels. The implementation may apply to standard embedded memory cores without redesigning specialized hardware within the SRAM bank. The simulation results showed that the proposed channel protection technique produced better energy-quality trade-off than the conventional higher-order-bit protection for the uncompressed as well as compressed motion image frames.