High capacity digital data storage by transmission of radiant energy through arrays of small diameter holes
US7054256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2001 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Oct 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/0003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A storage media for storage of data thereon is provided. The storage media including: a first layer, the first layer being substantially transparent to a predetermined radiant energy used for reading the data; and a second layer formed on the first layer and being substantially opaque to the radiant energy, the second layer having a pattern comprising a plurality of holes, each of the holes having a largest dimension which is greater than a wavelength of the radiant energy, the data being stored as the presence or absence of a hole in the pattern. Also provided are a method for fabricating the storage media as well as an apparatus and method for reading the data stored on the storage media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.