Optical content addressable memories for data/knowledge base processing

Author

Akyokus, Selim ; Berra, P. Bruce

Author_Institution

Syracuse Univ., New York, NY, USA

fYear

1991

fDate

30 Apr-2 May 1991

Firstpage

202

Lastpage

207

Abstract

This paper describes the principles and architectures of a one- and a two-dimensional optical content addressable memory (OCAM). These architectures are based on optical matrix multipliers which use free space interconnections in optics. They work as a CAM due to spatial coding used to perform bit matching and masking. A 1-D OCAM can perform a single (one-to-many) search operation and a 2-D OCAM can perform multiple (many-to-many) search operations in one step. An optical database machine (ODM) based on a 2-D OCAM along with a page-oriented holographic memory (POHM) is proposed for the execution of relational database operations

Keywords

computer architecture; content-addressable storage; holographic storage; optical information processing; optical interconnections; optical storage; relational databases; special purpose computers; bit matching; free space interconnections; many-to-many; optical database machine; optical matrix multipliers; page-oriented holographic memory; relational database operations; search operations; spatial coding; two-dimensional optical content addressable memory; Associative memory; CADCAM; Computer aided manufacturing; Holographic optical components; Holography; Optical arrays; Optical sensors; Registers; Semiconductor laser arrays; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel Processing Symposium, 1991. Proceedings., Fifth International

Conference_Location

Anaheim, CA

Print_ISBN

0-8186-9167-0

Type

conf

DOI

10.1109/IPPS.1991.153779

Filename

153779