Optical disc cartridge with a flexible storage medium
US5077726A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1989 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Apr 5, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disc cartridge with a flexible optical storage medium, stabilized during rotation by a Bernoulli surface, is described. A flexible optical disc having an active layer capable of storing information is mounted within a rigid disc cartridge. A Bernoulli surface is provided on an inside face of the disc cartridge, in close proximity to the flexible disc, to thereby stabilize the flexible disc during rotation. The disc is rotated in order to access locations thereon during information storage and retrieval. Additionally, optical access to these locations during information storage and retrieval is also provided by the stabilizing Bernoulli surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.