One-step optical negabinary and modified signed-digit adder |
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Authors: | Shuqun Zhang Mohammad A Karim |
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Abstract: | A one-step algorithm for parallel negabinary addition of two negabinary numbers is achieved by minimizing the truth-table for the two-step algorithm. Without increasing the encoding cell size or adding complexity of the corresponding optical system, the proposed one-step scheme doubles the computation speed. The optical system can also be used to realize a one-step modified signed digit adder. Additionally, optical implementation of negabinary multiplication using this proposed one-step optical adder is discussed. |
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Keywords: | Negabinary number representation Modified signed-digit adder One-step algorithm Optical computing |
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