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:
Dec. 20, 1977
Filed:
Oct. 23, 1965
Applicant:
Inventors:
Kenneth L Bernstein, Framingham, MA (US);
Philip S Considine, Woburn, MA (US);
George B Parrent, Jr, Carlisle, MA (US);
Assignee:
Technical Operations, Incorporated, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G09C / ;
U.S. Cl.
CPC ...
3501 / ; 35-2 ;
Abstract
This disclosure depicts an optical system and method for encoded storage and retrieval, wherein record images are enciphered using incoherent light and wherein deciphering of the coded images is performed in coherent light. More particularly, the disclosure depicts encoding images by inserting a complex phase function in the Fourier transform plane of the imaging means which satisfies the relation: