Support apparatus for a flexible disc and disc reader using this support apparatus
US4183069A · kind A · utility
4Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1978 |
| Grant date | Jan 8, 1980 |
| Priority date | — |
| Expiry date | Jun 27, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to support systems for flexible information-carrying discs. More particularly, the invention relates to an air bearing support plate (1) for a flexible disc (3) of which the sliding surface (2) is free in a preponderant sector from any profile irregularity (6) capable of affecting the flatness of the annular band of the disc (3) containing the information. The invention is applicable in particular to the optical reading by reflection or transmission of information carried by a flexible disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.