Patent · US Expired

Real-time recording/reproduction on an information recording medium including a defective region

US6842580B1 · kind B1 · utility

103Cited by
3References
33Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 26, 2000
Grant dateJan 11, 2005
Priority date
Expiry dateJan 26, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2005/91328
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In an information recording medium for recording and reproducing data thereon on a sector-by-sector basis, the recorded data being managed as at least one file by using a file structure, the file structure includes unused space management information for identifying a used region and an unused region. At least one defective region is registered as an unused region in the unused space management information, the at least one defective region being a region on the information recording medium which is incapable of proper reproduction of the recorded data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.