Hologram recording and reproducing apparatus
US9484057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2016 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk conveyance unit 3 conveys the disk medium 2 to a position where recording and reproducing are performed by the pickup 1 with the spindle motor 4 held. The disk conveyance unit 3 includes first movement mechanisms 22 and 24 for moving a first conveyance frame 30 with respect to fixed frames 10 and 20 and second movement mechanisms 34 and 36 for moving a second conveyance frame 40 holding a spindle motor 4 with respect to the first conveyance frame 30. The first and second movement mechanisms move to substantially the same direction and operate independently from each other. This allows the disk of the hologram recording and reproducing apparatus to be moved at a high speed and positioned at a high accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.