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Research on Architecture of Optical Computer

光计算机体系结构研究

基本信息

批准号：
62460066
负责人：
ICHIOKA Yoshiki
金额：
$ 4.8万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

项目摘要

An architecture of an optical computer capable of large capacity information processing has been investigated and a scheme of its decelopment has been clarified. In our research the following results have been obtained.1. An experimental system of the opto-digital hybrid OPALS (optical parallel array logic system) has been constructed. In the system a liquid crystal display and a charge coupled device TV camera are used as interface devices between optical and electronic systems. Feed back loop is implemented with a personal computer system. Contrast of the display for interface is an important factor in processsing speed of the system. With a galvanometer mirror, flexibility and capability of processing of the system can be increased.2. Techniques of parallel programming for OPALS have been investigated. In this study, a method for space-variant operation has been developed using optical array logic. Optical array logic is the processing basis of the OPALS. In programming of optical array logic, a concept of pattern logic has been studied for various range of data processing and its capability has been verified. A programming language for potical array logic has been developed and some useful concepts such as multiplication and negation of operation kernel and cluster have been satudied. Using these techniques and concepts various programs of parallel processing are developed and verified by the experimental system of the OPALS.3. An architecture based on neural network has been investigated as a a new type of optical processing system. an associative memory system with orthogonal transform has been studied. A high reliable system utilizing restoration capability of neural network also has been considered. In this study usefulness of a multi-layer system is clarifid even for optical systems. Implementation of neural network on the OPALS remains as a future work.

研究了一种具有大容量信息处理能力的光计算机的体系结构，并阐明了其发展方案。在我们的研究中获得了以下结果：建立了光电混合并行阵列逻辑系统的实验系统。该系统采用液晶显示器和电荷耦合器件电视摄像机作为光电系统的接口器件。反馈回路由个人计算机系统实现。界面显示的对比度是影响系统处理速度的重要因素。采用振镜，可以增加系统的灵活性和处理能力。研究了OPALS的并行编程技术。在本研究中，利用光学阵列逻辑开发了一种空间变型操作方法。光阵列逻辑是OPALS的处理基础。在光学阵列逻辑的编程中，研究了模式逻辑的概念，并对其处理各种数据的能力进行了验证。开发了一种政治阵列逻辑的程序设计语言，研究了运算核和聚类的乘法和负等一些有用的概念。利用这些技术和概念，开发了各种并行处理程序，并通过opals实验系统进行了验证。研究了一种基于神经网络的新型光学处理系统结构。研究了一种正交变换的联想记忆系统。同时还考虑了利用神经网络的恢复能力来实现高可靠的系统。在本研究中，阐明了多层系统在光学系统中的实用性。神经网络在OPALS上的实现仍是未来的工作。