Data storage devices and methods
AssigneeGeneral Electric Company
InventorsBrian Lee Lawrence, Marc Dubois, Pingfan Peter Wu, Joseph Lucian Smolenski, Xiaolei Shi, Eugene Pauling Boden
Life of this patent
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Abstract
A data storage device including: a plastic substrate having a plurality of volumes arranged in tracks along a plurality of vertically stacked, laterally extending layers therein; and, a plurality of micro-holograms each contained in a corresponding one of the volumes; herein, the presence or absence of a micro-hologram in each of the volumes is indicative of a corresponding portion of data stored.
Claims40
A data storage device comprising:
- a moldable non-photopolymer plastic substrate having a plurality of volumes arranged along tracks in a plurality of vertically stacked, laterally extending layers;
- and,
- a plurality of micro-holograms each contained in a corresponding one of said volumes;
- wherein, the presence or absence of a micro-hologram in each of said volumes is indicative of a corresponding portion of data stored.
A data storage device comprising:
- a non-photopolymer plastic substrate having a threshold functional characteristic and a plurality of volumes arranged along tracks in a plurality of vertically stacked, laterally extending layers;
- and,
- a plurality of micro-holograms each substantially contained in a corresponding one of said volumes;
- wherein, the presence or absence of a micro-hologram in each of said volumes is indicative of a corresponding portion of data stored.
A method for storing data comprising:
- providing a plastic substrate having a plurality of volumes arranged along tracks in a plurality of vertically stacked, laterally extending layers;
- and,
- forming a plurality of micro-holograms in said substrate using a single exposure to a substantially single wavelength optical energy;
- wherein, each of said micro-holograms is substantially contained in a corresponding one of said volumes and the presence or absence of a micro-hologram in each of said volumes is indicative of a corresponding portion of the data.
A method for storing data comprising:
- providing a plastic substrate having a plurality of volumes arranged along tracks in a plurality of vertically stacked, laterally extending layers;
- and,
- interfering two counter-propagating light beams in said substrate, thereby forming a plurality of micro-holograms in said substrate,
- wherein one of said beams is divergent and the other of the beams is focused where they interfere, a nd each of said micro-holograms is substantially contained in a corresponding one of said volumes and the presence or absence of a micro-hologram in each of said volumes is indicative of a corresponding portion of the data.
Dependencies are inferred from the claim text.