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:
Apr. 16, 1991
Filed:
Mar. 21, 1989
Applicant:
Inventors:
Mao-Jin Chern, Rancho Palos Verdes, CA (US);
Ronald T Smith, Redondo Beach, CA (US);
Brent C Frogget, Los Alamos, NM (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G11B / ; G11C / ;
U.S. Cl.
CPC ...
350-368 ; 369103 ; 369177 ; 365125 ; 365235 ;
Abstract
A plurality of reflective diffusing holographic memory elements (16) is positioned on a memory plate (14). An array (24) of detectors (22) faces at least one of the memory elements. A laser (26) illuminates the selected memory element and the data stored therein is reflected onto the array for reading. A new memory element may be illuminated or may be brought into interrogation position.