Holographic recording medium, method for adding address information to same, and method of addressing
US7274497B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Jun 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a holographic recording medium, a method for adding address information to the holographic recording medium, and a method for addressing that can identify two-dimensional information pages by a simple addressing operation. In the holographic recording medium 12, two-dimensional information pages 40A, . . . each comprising multiple pixels are multiplexed and holographically recorded. A plurality of pixels in each of the two-dimensional information pages 40A, . . . form address pixels, and a set of the address pixels form an address information region 42A, . . . . The address information region 42A, . . . is disposed at a different position in the two-dimensional information page 40A, . . . on a two-dimensional information page basis or on a page group basis comprising a plurality of two-dimensional information pages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.