Method for parallel writing and reading of data in an optical memory, a writing/reading device for use by the method and uses of the method and the writing/reading device
US6005817A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1998 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Jan 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method for parallel writing and reading of data in an optical memory, the optical memory includes one or more microlenses for accessing a memory medium, individually addressable elements arranged in one or two-dimensional matrices in a write/read device are activated. The activation of an element physically influences one or more localized areas in a data carrying layer in the memory for writing and reading of data carrying structures in the localized area. Writing and reading is thus performed on the basis of a relationship between the geometric location of the element in the matrix and the position of the localized area(s) in the data carrying layer of the memory. A write/read device includes individually addressable elements which are arranged in one or two-dimensional matrices, the addressable element being arranged to be activated in order to physically influence one or more of the above-mentioned localized areas. Use for such a configuration includes, for example, writing and reading in optical memories which consist of 1-100 microlenses with associated data carrying layers and in optical memories which consist of a transparent spherical particle having a transparent lay…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.