Holographic recording method and apparatus
US7154645B2 · kind B2 · utility
3Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2004 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Mar 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/35
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic recording method and a holographic recording apparatus capable of selectively rewriting or erasing only desired data without degrading data other than the desired data are provided. Holograms are multiple recorded per file, and page data in one file is multiple recorded, while page data in one file and page data in another file are not multiple recorded. Therefore, only the desired file can be selectively rewritten or erased without degrading the other files.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.