Data recording/reproducing method and device
US6272085A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Tracks of respective discs of plural disc drives are divided into plural blocks and spare sectors are disposed (assigned) at predetermined intervals between blocks. Moreover, blocks including defect sector is replaced so that sectors are continuously disposed (assigned) on the disc except for the defect sector in alternative area designated on the basis of defect list where address of detected defect sector is registered and correspondence relationship set in advance. At the time of reproduction of replaced data, all data within the read-designated range are continuously read out to store those data into a memory. In reading out data from the memory, data of defect sector is deleted. Further, at the time of recording, data are continuously written into the write-designated range. At this time, dummy data is written into the defect sector. Thus, there can be provided a data recording and/or reproducing method and a data recording and/or reproducing apparatus capable of carrying out defect processing without stopping all disc drives and adapted so that operation speed is not lowered after defect processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.