Optical information recording device, optical information recording and reproducing device, optical information recording method, optical information recording and reproducing method, and optical element
US9330704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2012 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The optical information recording and reproducing method realizes an increased number of multiplexing in recording and favorably stabilized signal recording in a manner of uniforming media consumption in angle-multiplexed recording by changing a phase of signal light on a pixel basis in a manner in which the speed of a phase change on a pixel basis is constant or is greater than or equal to a certain speed in a page and between pages when the driving speed of a phase mask changes at the time of recording. The optical information recording and reproducing method, while moving an optical element that adds phase information to a light flux which includes two-dimensional page data information in a direction that is perpendicular to an optical axis of the light flux, records the page data on the recording medium by adding the phase information to the light flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.