Claims
- 1. An information recording medium comprising a guide groove along which information is recorded/reproduced in an information recording region, the information being formed as a recorded mark in both of concave and convex portions of the guide groove, management information including address information being recorded by a wobble of the guide groove,
an offset of a reproducing signal of the recorded mark generated by the wobble of the guide groove is 5.5% or less of an amplitude of the reproducing signal.
- 2. An information recording medium comprising a guide groove along which information is recorded in an information recording region, the information being formed as a recorded mark in both of concave and convex portions of the guide groove, management information including address information being recorded by a wobble of the guide groove,
wherein an increase/decrease of a width of one of the concave and convex portions of the guide groove generated by the wobble of the other portion is 3% or less of one of an interval between the concave portions and an interval between the convex portions.
- 3. An information recording medium comprising a guide groove along which information is recorded in an information recording region, the information being formed as a recorded mark in both of concave and convex portions of the guide groove, management information including address information being recorded by a wobble of the guide groove,
wherein an amplitude of the wobble of the guide groove is 3% or less of one of an interval between the concave portions and an interval between the convex portions.
- 4. An information recording medium comprising a guide groove along which information is recorded in an information recording region, the information being formed as a recorded mark in both of concave and convex portions of the guide groove, management information including address information being recorded by a wobble of the guide groove,
wherein a signal amplitude by the wobble of the guide groove reproduced by an information recording/reproducing device which irradiates the information recording medium with a light beam to play the information recording medium is 9% or less of a maximum amplitude of a signal produced at the time of when the light beam crosses the guide groove.
- 5. An information recording medium comprising a guide groove along which information is recorded in an information recording region, the information being formed as a recorded mark in both of concave and convex portions of the guide groove, management information including address information being recorded by a wobble of the guide groove,
wherein an amplitude of the wobble of the guide groove is 0.52% or more of one of an interval between the concave portions and an interval between the convex portions.
- 6. An information recording medium comprising a guide groove along which information is recorded in an information recording region, the information being formed as a recorded mark in both of concave and convex portions of the guide groove, management information including address information being recorded by a wobble of the guide groove,
wherein a signal amplitude by the wobble of the guide groove reproduced by an information recording/reproducing device which irradiates the information recording medium with a light beam to play the information recording medium is 1.6% or more of a maximum amplitude of a signal produced at the time of when the light beam crosses the guide groove.
- 7. An information recording method for recording management information by a wobble of a guide groove using a light beam into an information recording medium comprising: a guide groove along which information is recorded in an information recording region, in which user data is recorded/reproduced with respect to both concave and convex portions of the guide groove and in which management information is recorded by the wobble of the guide groove, the method comprising:
focusing the light beam on the information recording medium to form the guide groove in the information recording medium; oscillating the light beam to wobble the guide groove in a radial direction of the information recording medium; judging whether the wobble is 0.52% or more and 3% or less of a guide groove interval; and increasing an oscillating amount, when the wobble is 0.52% or less and decreasing the oscillating amount, when the wobble is 3% or more.
- 8. An information recording device to record management information by a wobble of a guide groove into an information recording medium comprising:
Priority Claims (1)
Number |
Date |
Country |
Kind |
2003-014600 |
Jan 2003 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2003-014600, filed Jan. 23, 2003, the entire contents of which are incorporated herein by reference.