Data scramble method for phase change optical disks

DOI Web Site Web Site 2 Citations 6 References

Bibliographic Information

Other Title
  • 相変化光ディスク用データスクランブル方式
  • ソウヘンカ ヒカリディスクヨウ データスクランブル ホウシキ

Search this article

Description

New scrambling method is described. DVD-RAM is a phase-change optical disk which records data by controlling two phases(a crystalline state and an amorphous state). In case the same data is written on the same place repeatedly, the phase-change optical disks deteriorate. To prevent the deterioration of the media, random seed scrambling method is proposed. In the random seed scrambling the data is scrambled by a different seed whenever the data is written on the media, and therefore, a different data is over-written on the media all the time. The proposed random seed scrambling has a characteristic that the seed is not necessary to be de-scrambled. By using random seed scrambling method, the overwrite characteristic of phase-change optical disks is improved drastically and a number of overwrite times increases. Key words DVD, Phase change optical disks, scrambling, over write

Journal

  • ITE Technical Report

    ITE Technical Report 25.81 (0), 7-12, 2001

    The Institute of Image Information and Television Engineers

Citations (2)*help

See more

References(6)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top