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:
Nov. 21, 1978
Filed:
Apr. 05, 1978
Philip S Brody, Brookmont, MD (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A photovoltaic-ferroelectric correlation device for both optical pattern relation and signal correlation. A remanent polarization pattern is induced in a photovoltaic-ferroelectric layer, and when irradiated with an illumination pattern, the photocurrent produced at each point of the layer is proportional to the product of the remanent polarization at that point and the illumination at that point. The sum of the point currents produced, or the short circuit photocurrent of the device, is proportional to the integral of the products, which is the correlation of the two patterns.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile