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Pseudo Multi-Port SRAM Circuit for Image Processing in Display Drivers.
- Source :
-
IEEE Transactions on Circuits & Systems for Video Technology . May2021, Vol. 31 Issue 5, p2056-2062. 7p. - Publication Year :
- 2021
-
Abstract
- N × N filter operations are frequently used in various image processing algorithms in display driver circuits. The implementation of the N × N filter requires a storage element to temporarily retain N or N-1 lines of display data. The traditional approach for this temporary storage element for N × N image filter is either by using N blocks of memory to store N lines of display data with single-port six-transistor (6T) SRAM bit-cells or by using N-1 blocks of memory to store N-1 lines of display data with dual-port eight-transistor (8T) SRAM bit-cells. In this paper, a pseudo multi-port SRAM circuit is proposed for N × N filter in image processing in a display driver integrated circuit (IC). By using pre-read mechanism and word-line/column selection signal forwarding technique, the proposed approach only stores N-1 lines of display 3 × 3 filter application, the proposed approach reduces the overall layout area by 50.3% and 30.2% compared to the traditional dual-port 8T and single-port 6T memory implementations, respectively, in an industrial 0.18-μm CMOS technology. Furthermore, the power used to perform a 3 × 3 filter operation is reduced by 47% and 30.8% with the proposed approach as compared to the traditional dual-port 8T and signal-port 6T memory circuits, respectively, with slight degradation of the access speed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10518215
- Volume :
- 31
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Circuits & Systems for Video Technology
- Publication Type :
- Academic Journal
- Accession number :
- 150190022
- Full Text :
- https://doi.org/10.1109/TCSVT.2020.2979046