Record carrier

Record carrier

  • CN 101,546,567 A
  • Filed: 02/01/1995
  • Published: 09/30/2009
  • Est. Priority Date: 02/15/1994
  • Status: Abandoned Application
First Claim
Patent Images

1. record carrier, comprise track (121) with material area, this material area is included in first and second zones (123,124) that replace on the direction of track, first area (123) presents first detectable characteristic, second area (124) presents second detectable characteristic different with first characteristicFirst signal value (L) of modulation signal and the secondary signal value (H) that second area (124) is represented modulation signal are represented in this first area (123),This track comprises the sequence of a kind of continuous material part (160), and each part has been represented an information word,In this track, each material part (160) has the unit that representative has n bit-cell of first or second logical value,The bit-cell with second logical value is represented with the transformation of second area (124) in first area (123),The part representative of not having the material part (160) of described transformation has the bit-cell of first logical value,Be characterised in that, described material is partly selected from least one first kind group (G11, G12) and at least one second type group (G2), each the material part that wherein belongs to first kind group has been represented an information word uniquely, and each the material part that belongs to second type group combines with the logical value of a pre-position P bit-cell in the adjacent materials part, represented unique information word, make a material that belongs to second type group partly represent a plurality of information words thus, each information word is distinguished by described logical value in this information word.

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