The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 1986
Filed:
Dec. 27, 1982
Robert H Anderson, Long Beach, CA (US);
Litton Systems, Inc., Beverly Hills, CA (US);
Abstract
A pattern recognition and optical image processing system employing dynamically alterable magneto-optic display assemblies operating as light modulators. A first pattern is digitized and used to drive a first magneto-optic display assembly disposed in a light beam. The pattern impressed upon the light beam is sensed at the Fourier plane and digitized as a representation of the spatial filter pattern of the first pattern. A second pattern is digitized. The digitized second pattern and the digitized spatial filter pattern of the first pattern are used to drive a pair of magneto-optic display assemblies disposed in a single light beam. The resultant correlation pattern is sensed and the degree of correlation match between the Fourier transform of one pattern and the spatial filter pattern of the other pattern is used as indication of the probability of a pattern match between the first and second patterns.