JPS5971134A - Optical disc device - Google Patents
Optical disc deviceInfo
- Publication number
- JPS5971134A JPS5971134A JP57182328A JP18232882A JPS5971134A JP S5971134 A JPS5971134 A JP S5971134A JP 57182328 A JP57182328 A JP 57182328A JP 18232882 A JP18232882 A JP 18232882A JP S5971134 A JPS5971134 A JP S5971134A
- Authority
- JP
- Japan
- Prior art keywords
- track
- sector
- address
- shifted
- sectors
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00745—Sectoring or header formats within a track
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はディジタル−データを配録再生する光デイスク
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical disk device for recording and reproducing digital data.
従来ディジタル命データを記録・再生するディスク装置
は、各トラックに対して同じ、セクタ・アドレスを持つ
セクタは放射状に配列されているため、連続して記録ま
たは再生を行う場合、１つ外側のトラックの処理し、次
の内側のトラックへ移動する時、目的とするセクタが通
シ過ぎているため、アクセスタイムが多くなるという欠
点がある。Conventionally, in disk devices that record and play back digital data, sectors with the same sector address for each track are arranged radially, so when recording or playing back continuously, the next outer track When processing and moving to the next inner track, the target sector is passed through too much, so there is a disadvantage that access time increases.
本発明の目的は、従来装置に見られた欠点を除き、連続
して記録再生処理を行なう場合、同じセクターアドレス
を持つセクタをらせん状に配列する事によって、トラッ
ク移動時にセクタのずれを少なくシ、アクセス−タイム
を小さくする〃光ディスク装置を提供することにある。An object of the present invention is to eliminate the drawbacks seen in conventional devices, and to reduce the shift of sectors during track movement by arranging sectors with the same sector address in a spiral when recording and reproducing processing is performed continuously. The object of the present invention is to provide an optical disk device that reduces access time.
搦明は、光デイスク上に各トラックに対して、同じセク
ターアドレスを持つセクタがらせん状に配列される様に
、トラック・アドレスおよびセクタ・アドレスを示すＩ
Ｄ部が前もって書込まれている光ディスクを具備した光
デイスク装置である。搦明 is an I that indicates track addresses and sector addresses so that sectors with the same sector address are arranged in a spiral pattern for each track on an optical disk.
This is an optical disc device equipped with an optical disc on which part D is written in advance.
本装置の特徴は、各トラックに対してセクタがらせん状
に配列された光ディスクを備えていることである。A feature of this device is that it includes an optical disk in which sectors are arranged in a spiral pattern for each track.
本発明は、各トラックに対してセクタがらせん状に配列
された光ディスクを備える事によシ、連続した記録・再
生処理においてトラック移動時のアクセス・タイムを小
さくすることにその特徴がある。The present invention is characterized in that by providing an optical disk in which sectors are arranged spirally for each track, the access time during track movement in continuous recording/reproduction processing can be reduced.
本発明の光デイスク上の各トラックのセクタ配列を第１
図に示し、トラック・フォーマットを第２図に、セクタ
・フォーマットを第３図に示す。The sector arrangement of each track on the optical disk of the present invention is
The track format is shown in FIG. 2, and the sector format is shown in FIG.
第１図において、例えば、トラックＮのセクタ≠Ｏから
データを書込み始め、順次＋２・・・・・・、すｎ−１
，÷ｎ迄記録し、次にトラックＮ＋１に移動しセフタナ
Ｏから開始する時、図の矢印の方向へディスクが回転し
ている場合、セフタナＯの位置をヘッドがトラックＮか
らＮ＋１へ移動する時間にトラックＮ＋１のセクタが移
動する距離だけ、位置をずらしてセフタナＯの位置を配
列する。順次セクタの位置をずらし、同じセクタ・アド
レスのセクタをらせん状に配列するように、第３図に示
されたトラック・アドレス１４とセクタ・アドレス１５
を前もりて、ディスク上に記録しておく。In FIG. 1, for example, start writing data from sector ≠ O of track N, and sequentially +2..., n-1.
, ÷ n, then move to track N+1 and start from Seftana O. If the disk is rotating in the direction of the arrow in the figure, the time it takes for the head to move the position of Seftana O from track N to N+1. The positions of seftana O are arranged by shifting the positions by the distance that the sector of track N+1 moves. The track address 14 and sector address 15 shown in FIG.
be recorded on the disk in advance.
本発明は、連続してデータを記録・再生処理を行う場合
、トラックを移動する時アクセス・タイムを小さくする
ことができるという効果がある。The present invention has the advantage that when data is continuously recorded and reproduced, access time can be reduced when moving tracks.
第１図、第２図、第３図は本発明の実施例におけるＩデ
ィスク上の各トラックに対するセクタ起倒を示す平面図
、トラック・フォーマットの例を示すタイミング図、セ
クタ・フォーマットの例を示すタイミング図である。
１３・・・・・・ＩＤ同期用データ、１４・・・・・・
トラック・アドレス、１５・・・・・・セクターアドレ
ス、１６・・・・・・不良フラグ、１７・・・・・・デ
ータ園期用データ、１８・・・・・・トラック・アドレ
ス、１９・・・・・・セクタ・アトへ１９・・・・・・
セクタ・アドレス、２０・・・・・・固定長データ、２
１．・・川・エラー訂正用コード。
代理人 弁理士 内 原 音
第 １ 図FIGS. 1, 2, and 3 are a plan view showing sector raising and falling for each track on an I disk in an embodiment of the present invention, a timing chart showing an example of a track format, and a timing chart showing an example of a sector format. FIG. 13...ID synchronization data, 14...
Track address, 15...Sector address, 16...Bad flag, 17...Data for data storage, 18...Track address, 19...・・・・・・To sector ato 19・・・・・・
Sector address, 20...Fixed length data, 2
1. ... River error correction code. Agent Patent Attorney Uchihara Sound Figure 1
Claims (1)
いて、トラック書アドレスおよびセクタ・アドレスを表
示するためのＩＤ部が、各トラックに対して、媒体の回
転数、データの処理時間およびヘッドの移動時間の間に
移動する距離分だけずらしてらせん状に前もって誉き込
まれている光ディスクを具備した光ディヌク装置。In an optical disk device that records and reproduces digital data, an ID section for displaying a track address and a sector address is used for each track during the rotation speed of the medium, data processing time, and head movement time. An optical disc device is provided with an optical disc that is preloaded in a spiral manner by being shifted by the distance it travels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182328A JPS5971134A (en) | 1982-10-18 | 1982-10-18 | Optical disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182328A JPS5971134A (en) | 1982-10-18 | 1982-10-18 | Optical disc device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5971134A true JPS5971134A (en) | 1984-04-21 |
Family
ID=16116379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57182328A Pending JPS5971134A (en) | 1982-10-18 | 1982-10-18 | Optical disc device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5971134A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5262415A (en) * | 1975-11-18 | 1977-05-23 | Casio Comput Co Ltd | Information recording method |
-
1982
- 1982-10-18 JP JP57182328A patent/JPS5971134A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5262415A (en) * | 1975-11-18 | 1977-05-23 | Casio Comput Co Ltd | Information recording method |
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