Information recording method and apparatus
US6356521B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Feb 9, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording apparatus for recording data into a recording medium taking as recording unit a sector corresponding to a predetermined amount of information signal, comprises a file management unit (5) to classify an information signal for recording into the recording medium (101) into a number, two or more, of groups depending upon the importance of the information signal, and a write/read unit (6) to record the information signal into the recording medium (101) while dealing with a defective sector, if any, in the recording medium (101) in a manner designated for the group to which the information signal has been classified to belong at the above classifying step, and record a highly important information signal, when a defective sector is found by checking up the information signal recorded in the recording medium (101), into another sector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.