Patent Catalogue

Tracking method for disc consisting of single spiral land and groove tracks with radially shifted sector header

Method of tracking a disc that a land track and a groove track is alternately connected and the sector header is radially shifted.

  • Enables easy detection of the land and groove connecting point by comparing a polarity of tracking error signal at a connecting point to it at the immediately preceding sector header.
  • Enables continuous recording or reproduction over the entire surface of the disc.

[References]

  • DVD Specifications for Rewritable Disc: Part I, Index 2.6.3, 2.7.1.2.4, 2.7.2.1, 5.1.1, 5.1.3, 5.2.1.1; Fig. 2.7.1.3-5, 5.2.1.1-2, ; Annex L

[Offering Patent]

  • USP 5,946,285

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