Information recording medium which indicates information accordi

Details Information recording medium which indicates information accordi Information recording medium which indicates information accordi

1997-10-21

2000-05-30

Huber, Paul W.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, 369 47, G11B 370

Patent

active

060698705

ABSTRACT:
An optical disk comprising a substrate 4, and a plurality of tracks 269 to 273 formed on the substrate 4, wherein the plurality of tracks 269 to 273 include groove tracks 270, 272 consisting of a plurality of grooves mutually space apart by a fixed space, and land tracks 269, 271, 273 consisting of areas between the groove tracks, wherein the borders 14, 15 between the groove tracks and the land tracks represent information using the waveforms from their wobbling patterns, wherein the period of the wobbling waveforms of the borders 14, 15 are constant on each border, but the wobbling waveforms of the opposite portions of the borders across the track are shifted in phase by a predetermined phase difference.

REFERENCES:
patent: 5537373 (1996-07-01), Horikiri
patent: 5662988 (1997-09-01), Nakayama et al.
"A New Disc Format for Land/Groove Recording on a MSR Disc", M. Mieda, et al, Internatianal Symposium on Optical Memory 1995 (ISOM '95), Technical Digest, Fr-D4, pp. 167-168.

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