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논문 기본 정보

저자정보
(Kyungpook National University) (Kyungpook National University)
저널정보
대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.25 No.6
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    초록·키워드

    This paper presents an error-aware approximate 4-2 compressor design that enables a balanced trade-off between hardware efficiency and computational accuracy in approximate multipliers. The proposed design consists of two key components: a logic-simplified approximate compressor and a selective error compensation mechanism. The first component refines the Boolean expressions of an existing approximate 4-2 compressor to reduce area and power consumption. The second component introduces a lightweight correction circuit that targets high-probability error patterns, effectively minimizing the overall error distance. When implemented in a 32-nm CMOS technology, experimental results show that the proposed designs reduce area and power by up to 15% compared to existing approximate equivalents while achieving competitive accuracy metrics. The proposed multipliers are also applied to image processing and deep learning tasks to validate their practical benefits in error-resilient computing scenarios.

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