发明名称 |
Data storage devices and methods |
摘要 |
A data storage device comprises a substrate having oppositely disposed surfaces and a plurality of volumes arranged along tracks between the surfaces; a plurality of micro-holograms each contained in a corresponding one of the volumes; and, at least one groove in at least one of the surfaces and being operative to diffract light through the at least one surface and into the volumes; wherein, the presence or absence of a micro-hologram in a stacked layer in each of the volumes is indicative of a corresponding portion of data stored. |
申请公布号 |
US9093082(B2) |
申请公布日期 |
2015.07.28 |
申请号 |
US200812343288 |
申请日期 |
2008.12.23 |
申请人 |
General Electric Company |
发明人 |
Wu Pingfan Peter;Lawrence Brian Lee;Ren Zhiyuan;Hershey John Erik;Shi Xiaolei;Welles Kenneth Brakeley;Ross John Anderson Fergus;Ostroverkhov Victor Petrovich |
分类号 |
G03H1/02;G11B7/0065;G03H1/04;G11B7/1362;G11B7/1369;G11B7/24044;G03H1/30;G11B7/245;G11B7/248;G11B7/00 |
主分类号 |
G03H1/02 |
代理机构 |
Fletcher Yoder, P.C. |
代理人 |
Testa Jean K.;Fletcher Yoder, P.C. |
主权项 |
1. A method for storing data comprising:
providing a substrate having oppositely disposed surfaces, at least one groove in at least one of the surfaces, and a plurality of volumes arranged along tracks between the surfaces, wherein the grooves are configured to diffract light through at least one of the oppositely disposed surfaces; and, forming a plurality of micro-holograms in the substrate; wherein, each of the micro-holograms is substantially contained in a corresponding one of the plurality of volumes and the presence or absence of a micro-hologram in each of the plurality of volumes is indicative of a corresponding portion of the data; sensing at least one diffraction pattern resulting from the at least one groove; and, determining a depth in the substrate dependently upon the sensed diffraction pattern. |
地址 |
Schenectady NY US |