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:
Jun. 08, 2010
Filed:
Apr. 24, 2007
Applicants:
Mark A. Handschy, Boulder, CO (US);
Michael J. O'callaghan, Louisville, CO (US);
Inventors:
Mark A. Handschy, Boulder, CO (US);
Michael J. O'Callaghan, Louisville, CO (US);
Assignee:
Micron Technology, Inc., Boise, ID (US);
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01); G02B 5/32 (2006.01); G03H 1/16 (2006.01); G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A holographic data storage system that includes a write head that includes a pixellated spatial light modulator and a separate or integral phase mask that varies the phase depending on the location in the phase mask that light passes through. The phase variation can be changed over time in a random, pseudo-random, or predetermined fashion. The spatial light modulator and phase mask can be implemented in a liquid crystal SLM (nematic, ferroelectric, or other), in a DMD SLM, in a magneto-optical SLM, or in any other suitable manner.