Adaptive Partial Businvert Encoding for power efficient data transfer over wide system buses

Siegmund, Robert; Kretzschmar, Claudia; Müller, Dietmar

doi:10.1109/sbcci.2000.876057

Cited by 7 publications

(1 citation statement)

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“…Furthermore, since the switching activity is non-stationary, partial bus invert [11]is not optimise for this type of data since the choice of bus lines involve is static. Instead, we chose adaptive partial bus invert (APBI) as propose in [12] and clustered bus invert as comparisons to our technique. From our simulation, grouping 4bit bus at the LSB and another 4bit bus at the MSB give better transition saving for wide range of image data.…”

Section: Figure 5 Experiments Setup: (A) Unencoded Busses (B) Encodinmentioning

confidence: 99%

Interframe Bus Encoding Technique for Low Power Video Compression

Bahari

Arslan

Erdogan

2007

20th International Conference on VLSI Design Held Jointly With 6th International Conference on Embedded Systems (VLSID'07)

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This paper proposes a data encoder to reduce switched capacitance on system bus. Our method focuses on transferring raw video data (pixels) between off-chip memory and on-chip memory which is common in video compression applications. This method is based on entropy coding to minimize bus transition. The existing technique exploits the correlation between neighbouring pixels. In our technique, we exploit pixel correlation between two consecutive frames. Our method shows 54% transition saving when combined with the existing technique which is equivalent to 38% power saving for 15pF off-chip bus capacitance. This method is suitable for applications where multiple frames are transferred from off-chip memories such as in MPEG-4 AVC/H.264 encoder.

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Section: Figure 5 Experiments Setup: (A) Unencoded Busses (B) Encodinmentioning

confidence: 99%