1 October 2002 One-step digit-set-restricted modified signed-digit adder using an incoherent correlator based on a shared content-addressable memory
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Optical Engineering, 41(10), (2002). doi:10.1117/1.1505037
Abstract
An efficient one-step digit-set-restricted modified signed-digit (MSD) adder based on symbolic substitution is presented. In this technique, carry propagation is avoided by introducing reference digits to restrict the intermediate carry and sum digits to {1,0} and {0,1}, respectively. The proposed technique requires significantly fewer minterms and simplifies system complexity compared to the reported one-step MSD addition techniques. An incoherent correlator based on an optoelectronic shared content-addressable memory processor is suggested to perform the addition operation. In this technique, only one set of minterms needs to be stored, independent of the operand length.
Feng Qian, Guoqiang Li, Mohammad S. Alam, "One-step digit-set-restricted modified signed-digit adder using an incoherent correlator based on a shared content-addressable memory," Optical Engineering 41(10), (1 October 2002). http://dx.doi.org/10.1117/1.1505037
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KEYWORDS
Content addressable memory

Optoelectronics

Optical correlators

Lithium

Algorithm development

Symbolic substitution

Computer programming

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