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. 21, 2012
Filed:
Apr. 24, 2006
Christophe N. Sigel, Broomfield, CO (US);
Michael L. Leonhardt, Longmont, CO (US);
Christophe N. Sigel, Broomfield, CO (US);
Michael L. Leonhardt, Longmont, CO (US);
Oracle America, Inc., Redwood, CA (US);
Abstract
A method for holographic data recording and simultaneous data readout without requiring additional optical power for readout illumination is provided. The method comprises reflecting a transmitted portion of a data light beam or of a reference light beam used for holographic recording of data in a holographic data storage medium. The reflected beam is configured to illuminate the holographic data storage medium from the opposite side with a polarization orthogonal to that of the recording beams, such that it provides a counter-propagating readout beam for real-time readout of currently being recorded hologram. Readout beam may also be configurable for accessing any one of the at least one previously recorded holograms. Systems using the methods of the invention are also provided.