Claims
- 1. An optical disk in which tracks are formed on a disk base plate and recording pits corresponding to information are formed on said tracks in a multi-channel fashion, comprising:
- grooves that define said tracks being formed as discontinuous grooves formed around said disk which are fine wobbled in the radial direction of said disk base plate;
- address information of said tracks being provided by a groove pattern formed by said discontinuous grooves; and
- a pattern of recording pits of a program recorded on said disk arranged on opposite sides of said grooves on said tracks continuously around said disk without allocated address sectors.
- 2. An optical disk in which tracks are formed on a disk base plate and recording pits corresponding to information are formed on said tracks in a multi-channel fashion, comprising:
- grooves that define said tracks being formed as patterns which are fine wobbled in the radial direction of said disk base plate;
- address information of said tracks being provided by said grooves; and
- recording pits of said disk are provided at both sides of said groove and said pits are recorded and reproduced simultaneously by two laser beams.
- 3. An optical disk in which tracks are formed on a disk base plate and recording pits corresponding to information are formed on said tracks in a multi-channel fashion, comprising:
- grooves that define said tracks being formed as patterns which are fine wobbled in the radial direction of said disk base plate;
- address information of said tracks being provided by said grooves; and
- an amplitude of a wobbling of said groove is selected to be greater than 25 nm and less than 50 nm.
- 4. An optical disk in which tracks are formed on a disk base plate and recording pits corresponding to information are formed on said tracks in a multi-channel fashion, comprising:
- grooves that define said tracks being formed as discontinuous grooves which are fine wobbled in the radial direction of said disk base plate;
- address information of said tracks being provided by said discontinuous grooves; and
- recording pits are formed as a pattern corresponding to a program recorded on said disk base plate which is read out when said optical disk is rotated at a constant angular velocity, said pattern of recording pits arranged continuously around said grooves without allocated space for address sectors.
- 5. The optical disk according to claim 1, wherein said recording pits are read out when said optical disk is rotated at a constant linear velocity.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-293310 |
Oct 1992 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/142,946, filed Oct. 29, 1993, abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0178657 |
Apr 1986 |
EPX |
0265695 |
May 1988 |
EPX |
0326206 |
Aug 1989 |
EPX |
0399852 |
Nov 1990 |
EPX |
63-87682 |
Apr 1988 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
142946 |
Oct 1993 |
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