Optical implementation of flip-flops using single-LCD panel

被引：86
|
作者：
Datta, Asit K.
Munshi, Soumika
机构：
[1] Univ Calcutta, Dept Appl Opt & Photon, Kolkata 700009, W Bengal, India
[2] Instrument Res & Dev Estab, Dehra Dun 248008, Uttar Pradesh, India
来源：
OPTICS AND LASER TECHNOLOGY | 2008年 / 40卷 / 01期
关键词：
flip-flops; three-input coding; optical shadow casting architecture;
D O I：
10.1016/j.optlastec.2007.04.006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel scheme for implementation of flip-flop operations in a hybrid optical architecture using a single-LCD panel is proposed. Since flip-flops are sequential logic elements, the present inputs along with the previous output determine the present output state. In the proposed system, the previous state is considered as the third input to the system and three inputs are spatially coded and superimposed. A light source array projects an output binary pattern, which is decoded using a specially designed decoding mask so that both the present output Q and its complement (Q) over bar are obtained simultaneously. The switching modes of the light sources in the array decide the operation of S-R, J-K, T and D flip-flops in a single architecture. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1 / 5
页数：5
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