Optoelectronic quotient-selected modified signed-digit division

Feng Qian; Guoqiang Li; Mohammad S. Alam

doi:10.1117/1.1336524

1 February 2001 Optoelectronic quotient-selected modified signed-digit division

Feng Qian, Guoqiang Li, Mohammad S. Alam

Optical Engineering, Vol. 40, Issue 2, (February 2001). https://doi.org/10.1117/1.1336524

A novel optoelectronic quotient-selected modified signed-digit division technique is proposed. This division method generates one quotient digit per iteration involving only one shift operation, one quotient selection operation and one addition/subtraction operation. The quotient digit can be selected by observing three most significant digits of the partial remainder independent of the divisor. Two algorithms based on truth-table look-up and binary logic operations are derived. For optoelectronic implementation, an efficient shared content-addressable memory based architecture as well as compact logic array processor based architecture with an electron-trapping device is proposed. Performance evaluation of the proposed optoelectronic quotient-selected division shows that it is faster than the previously reported convergence division approach. Finally, proof-of-principle experimental results are presented to verify the effectiveness of the proposed technique.

©(2001) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Feng Qian, Guoqiang Li, and Mohammad S. Alam "Optoelectronic quotient-selected modified signed-digit division," Optical Engineering 40(2), (1 February 2001). https://doi.org/10.1117/1.1336524

Published: 1 February 2001

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