Holographic data storage and retrieval system
US5007690A · kind A · utility
44Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Mar 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/16
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.