JPS61158616U - - Google Patents
Info
- Publication number
- JPS61158616U JPS61158616U JP1985040077U JP4007785U JPS61158616U JP S61158616 U JPS61158616 U JP S61158616U JP 1985040077 U JP1985040077 U JP 1985040077U JP 4007785 U JP4007785 U JP 4007785U JP S61158616 U JPS61158616 U JP S61158616U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- recording zone
- main
- sub
- recorded
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例の光デイスクの平面
図、第２図ａ，ｂは副記録トラツクに記録する時
と副記録トラツクから判別信号を読み取る時の回
路構成のブロツク図、第３図は従来例の光デイス
クの平面図、第４図はその信号記録再生のための
回路の構成のブロツク図である。
２１……デイスク、２４……記録帯、２５……
主記録ゾーン、２６……副記録ゾーン。
FIG. 1 is a plan view of an optical disk according to an embodiment of the present invention, FIGS. 2a and 2b are block diagrams of the circuit configuration when recording on the sub-recording track and when reading a discrimination signal from the sub-recording track, and FIG. This figure is a plan view of a conventional optical disk, and FIG. 4 is a block diagram of the configuration of a circuit for recording and reproducing signals. 21...Disc, 24...Record band, 25...
Main recording zone, 26...sub-recording zone.
Claims (1)
するデイスクに、主情報を記録する主記録ゾーン
を設けるとともに、１回転中に１個所副記録ゾー
ンを設けることを特徴とする光デイスク。 (2) 主記録ゾーンに主情報を記録する状態では
副記録ゾーンを未記録の状態にしておくことを特
徴とする実用新案登録請求の範囲第１項記載の光
デイスク。 (3) 副記録ゾーンには主記録ゾーンに記録され
た主情報が再度検索する必要があるか否かの判別
信号を記録することを特徴とする実用新案登録請
求の範囲第１項記載の光デイスク。[Claims for Utility Model Registration] (1) A disk having a spiral or concentric recording track is characterized by being provided with a main recording zone for recording main information and a sub-recording zone at one location during one rotation. optical disk. (2) The optical disc according to claim 1, wherein the sub-recording zone is left unrecorded while the main information is recorded in the main recording zone. (3) The light according to claim 1 of the utility model registration claim, characterized in that a determination signal indicating whether or not the main information recorded in the main recording zone needs to be searched again is recorded in the sub-recording zone. disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985040077U JPS61158616U (en) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985040077U JPS61158616U (en) | 1985-03-20 | 1985-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61158616U true JPS61158616U (en) | 1986-10-01 |
Family
ID=30548630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985040077U Pending JPS61158616U (en) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158616U (en) |
-
1985
- 1985-03-20 JP JP1985040077U patent/JPS61158616U/ja active Pending
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