Method and apparatus using multiple codes to increase storage capacity
US4804959A · kind A · utility
77Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Nov 10, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To increase storage capacity of a disk storage device, the recording surface of the device is partitioned into a plurality of concentric recording bands, data to be recorded on respective bands are encoded using different run-length-limited codes with the code rate of each band being higher than the adjacent inner band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.