Flexible record disk signal storage apparatus
US4167269A · kind A · utility
3Cited by
6References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1977 |
| Grant date | Sep 11, 1979 |
| Priority date | — |
| Expiry date | Oct 31, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Flexible disk record storage apparatus has a chordally perturbed backing plate for inducing a dynamic stiffness in a flexible recording disk rotating immediately adjacent the plate. A head radially movably disposed between the chordal perturbations provides reliable recording and playback. A web portion of the backing plate has a predetermined flatness circumscribing a transducing location for enhancing recording and playback quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.