Accession Number : ADP008667

Title :   Closed Loop Optical Disk Based Associative Memory,

Corporate Author : CALIFORNIA INST OF TECH PASADENA DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Neifeld, Mark A. ; Psaltis, Demetri

Report Date : 12 MAY 1992

Pagination or Media Count : 4

Abstract : The optical disk is a simple computer addressable binary storage medium with very high capacity. More than 10 (to the 10th power) bits of information can be recorded on a 12cm diameter optical disk. The natural two dimensional format of the data recorded on optical disk makes this media particularly attractive for the storage of images and holograms, while parallel access provides a convenient mechanism through which such data may be retrieved. Parallel access to data stored on optical disk has been shown to provide interesting solutions to problems in neural networks, database retrieval and pattern recognition. In this paper we will discuss a closed loop associative optical memory based on the optical disk. When presented with a partial or noisy version of one of the images stored on the optical disk, the optical system evolves to a stable state in which those stored images which best match the input are temporally locked in the loop.

Descriptors :   *OPTICAL STORAGE, *DISKS, *CLOSED LOOP SYSTEMS, HOLOGRAMS, BINARY PROCESSORS, NEURAL NETS, PATTERN RECOGNITION.

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE