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Optical processing based on conditional higher-order trinary modified signed-digit symbolic substitution

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Abstract

Techniques for higher-order modified signed-digit trinary arithmetic by using optical symbolic substitution are presented. This method provides fast multibit computation by adopting a two-step symbolic-substitution scheme. Since more information is represented in fewer digits, this technique leads to a compact design. A content-addressable memory-based and a joint transform correlator-based optical implemention for the proposed technique are also presented.

© 1992 Optical Society of America

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