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Unified negabinary symbolic arithmetic for addition and subtraction with polarization-encoded optical shadow casting
- Source :
- Optics & Laser Technology. 29:221-227
- Publication Year :
- 1997
- Publisher :
- Elsevier BV, 1997.
-
Abstract
- Conventional algorithms process addition and subtraction in different ways. In this paper, by introducing bipolar carries, a unified negabinary symbolic arithmetic for the two operations can be derived, using only the same six substitution rules. Based on the polarization-encoded optical shadow-casting technique, the encoding and decoding patterns for half-addition, half-subtraction and unified arithmetic are designed, with the fixed LED pattern and separate and simultaneous generation of the multi-outputs. The architecture is simple, programmable, cost-efficient, and the addition and subtraction of multiple pairs of bipolar numbers can be handled in parallel in the same manner.
Details
- ISSN :
- 00303992
- Volume :
- 29
- Database :
- OpenAIRE
- Journal :
- Optics & Laser Technology
- Accession number :
- edsair.doi...........78f646926b83fa849b5df5f2349b6514