JPH046821U - - Google Patents
Info
- Publication number
- JPH046821U JPH046821U JP1990044297U JP4429790U JPH046821U JP H046821 U JPH046821 U JP H046821U JP 1990044297 U JP1990044297 U JP 1990044297U JP 4429790 U JP4429790 U JP 4429790U JP H046821 U JPH046821 U JP H046821U
- Authority
- JP
- Japan
- Prior art keywords
- area
- reproduction
- track
- information
- information reproduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例を示す上面図、第２
図は従来の一例を示す上面図である。
１……情報再生専用領域、２……記録再生領域
、１１……情報再生専用トラツク、１２……記録
再生用トラツク。
Fig. 1 is a top view showing one embodiment of the present invention;
The figure is a top view showing a conventional example. 1...Area exclusively for information reproduction, 2...A recording and reproduction area, 11...A track exclusively for information reproduction, 12...A track for recording and reproduction.
Claims (1)
ツト列として予じめ書き込まれた情報再生専用領
域と、前記トラツクの後半部をトラツキング用グ
ループが形成され少なくとも前記情報再生専用領
域に対応した記録および再生が可能な記録再生用
領域とを含むことを特徴とする光デイスク基板。 An information reproduction-only area in which reproduction-only information is written in advance as a row of pits in the first half of one track, and a tracking group formed in the latter half of the track, which corresponds to at least the information reproduction-only area. and a reproducible recording and reproducing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990044297U JPH046821U (en) | 1990-04-25 | 1990-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990044297U JPH046821U (en) | 1990-04-25 | 1990-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046821U true JPH046821U (en) | 1992-01-22 |
Family
ID=31557469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990044297U Pending JPH046821U (en) | 1990-04-25 | 1990-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046821U (en) |
-
1990
- 1990-04-25 JP JP1990044297U patent/JPH046821U/ja active Pending