Optical recording medium recordable on land and groove tracks
AssigneeSamsung Electronics Co., Ltd.
InventorsTae-kyung Kim, Young-man Ahn, Chong-sam Chung, Jin-kyung Lee, Jong-bae Kim, Du-seop Yoon
Life of this patent
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Abstract
An optical recording medium having groove tracks and land tracks, first wobbles formed along both sidewalls of each of the groove tracks, second wobbles formed along both sidewalls of each of the land tracks and which are independent of the formation of the first wobble. A middle portion is formed at a predetermined position on each of the sidewalls between adjacent pairs of the land and groove tracks. This optical recording medium can significantly reduce the non-recordable area as compared to conventional optical recording media, resulting in a great improvement in recording density.
Claims29
An optical recording medium comprising:
- groove tracks;
- land tracks, each of said land tracks being disposed above said groove tracks and having sidewalls between adjacent ones of said groove tracks;
- first wobble signals formed close to corresponding said groove tracks along the sidewalls adjacent each of said groove tracks;
- and
- second wobble signals formed close to said land tracks along the sidewalls adjacent each of said land tracks,
- wherein said second wobble signals are independent of said first wobble signals.
An optical recording medium comprising:
- groove tracks;
- land tracks disposed above adjacent ones of said groove tracks;
- middle portions extending from a predetermined position on a sidewall between adjacent pairs of said land and groove tracks.
An optical recording medium comprising:
- a groove track having a first area on which first data is recordable;
- a land track having a second area on which second data is recordable, said land track being separated from and disposed above said groove track by a side wall;
- address information recorded on the sidewall and which includes information used to determine a physical location for one of the first and second areas of said land and groove tracks.
A method of recording data on an optical recording medium having an adjacent pair of land and groove tracks, the method comprising:
- recording first data on the land track;
- recording second data on the groove track, the groove track being below the land track;
- recording address information on a sidewall separating the adjacent pair of land and groove tracks, the address information providing information used to recognize a physical location of one of the first and second data on the optical recording medium.
Dependencies are inferred from the claim text.