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Optical Engineering

A signed digit adder using electronically addressable spatial light modulator
Author(s): Khan M. Iftekharuddin; Abdul Ahad Sami Awwal; Mohammad Abdul Salam
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Paper Abstract

In binary digital computers addition is performed employing the carry propagation technique, which essentially limits the computing speed. For multiplication the speed is further reduced because of the number of shift and add operations. To alleviate this problem, a modified signed-bit (MSD) number system has already been proposed. The inherent parallel architecture of optical processors makes the best use of the carry-free features of MSD binary numbers. In this paper, we use a very large scale integration SLM and CCD detector to demonstrate truth table lookup for carry-free MSD addition.

Paper Details

Date Published: 1 November 2001
PDF: 4 pages
Opt. Eng. 40(11) doi: 10.1117/1.1412615
Published in: Optical Engineering Volume 40, Issue 11
Show Author Affiliations
Khan M. Iftekharuddin, Univ. of Memphis (United States)
Abdul Ahad Sami Awwal, Wright State Univ. (United States)
Mohammad Abdul Salam, Wright State Univ. (United States)

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