JPH02230557A - Optical disk device - Google Patents
Optical disk deviceInfo
- Publication number
- JPH02230557A JPH02230557A JP5118689A JP5118689A JPH02230557A JP H02230557 A JPH02230557 A JP H02230557A JP 5118689 A JP5118689 A JP 5118689A JP 5118689 A JP5118689 A JP 5118689A JP H02230557 A JPH02230557 A JP H02230557A
- Authority
- JP
- Japan
- Prior art keywords
- sector
- sectors
- alternate
- area
- replacement
- 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 title claims abstract description 22
- 230000002950 deficient Effects 0.000 abstract description 8
- 101100400452 Caenorhabditis elegans map-2 gene Proteins 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は光ディスク装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an optical disc device.
従来の光ディスク装置における光ディスク媒体の論理構
造は、通常データを記録するための領域である原始セク
タ領域中は記録セクタがある場合、それを交替セクタに
置換するため、交替セクタ領域中の交替セクタ上に対応
する不良セクタのアドレスを記録している。このため、
原始セクタ領域にアクセス中に不良セクタを検出したと
き、目的の不良セクタのアドレスを示す交替セクタを検
出するまで、交替セクタ領域をセクタ単位に順次に読出
さなければならない。The logical structure of the optical disc medium in conventional optical disc devices is that if there is a recording sector in the original sector area, which is an area for recording data, it is replaced with a replacement sector, so that the replacement sector in the replacement sector area is replaced with a replacement sector. The address of the corresponding bad sector is recorded. For this reason,
When a bad sector is detected while accessing the original sector area, the replacement sector area must be sequentially read sector by sector until a replacement sector indicating the address of the target bad sector is detected.
第２図はこのような従来の光ディスク装置に用いる光デ
ィスク媒体の論理構造を示す構造図で、通常のデータを
記録する領域である多数の記録セクタを有する原始セク
タ領域１１と、この記録セクタ中の不良セクタに対する
交替セクタを有する交替セクタ領域１３とから構成され
ており、例えば、原始セクタ領域１１のセクタアドレス
３の記録セクタが不良セクタであることを検出してその
交替セクタをアクセスする場合、本論理構造では、交替
セクタをセクタアドレスＡ・セクタアドレスＢの順に順
次に読出し、目的とする不良セクタのアドレス３を認識
した後に交替セクタに対してアクセスを行うようになっ
ている。FIG. 2 is a structural diagram showing the logical structure of an optical disk medium used in such a conventional optical disk device, which includes a primitive sector area 11 having a large number of recording sectors, which is an area for recording normal data, and a For example, when it is detected that the recording sector at sector address 3 in the original sector area 11 is a bad sector and the replacement sector is accessed, the main sector is In the logical structure, the replacement sector is read out sequentially in the order of sector address A and sector address B, and after recognizing address 3 of the target defective sector, the replacement sector is accessed.
上述したように、従来の光ディスク装置では、不良セク
タを検出したとき、目的とする不良セクタのアドレスを
示す交替セクタを検出するまで、交替セクタ領域をセク
タ単位に順次に読出さなければならないため、処理時間
が長くかかるという欠点を有している。また、不良セク
タが多数存在する場合は、最後の方に記録されている交
替セクタ程処理時間が長くなるという欠点もある。As described above, in conventional optical disk devices, when a bad sector is detected, the spare sector area must be sequentially read sector by sector until a spare sector indicating the target address of the bad sector is detected. It has the disadvantage that processing time is long. Furthermore, when there are many bad sectors, there is also a drawback that the processing time becomes longer for the replacement sectors recorded towards the end.
本発明の光ディスク装置は、通常データの記録を行う記
録セクタを有する原始セクタ領域と、前記記録セクタの
うちの不良セクタの置換用として使用する複数個の交替
セクタを有する交替セクタ領域と、前記不良セクタのア
ドレスとそれに対応ずる交替セクタのアドレスとを記録
した交替セクタマップとを有する光ディスク媒体を用い
、前記原始セクタ領域中の前記記録セクタが不良セクタ
であることを検出したとき、交替セクタマップを読出し
て前記不良セクタに対応する前記交替セクタのアドレス
を認識して前記交替セクタに対してアクセスを行うよう
にしたものである。The optical disc device of the present invention includes: an original sector area having a recording sector for recording normal data; a replacement sector area having a plurality of replacement sectors used to replace a defective sector among the recording sectors; When using an optical disk medium having a spare sector map in which sector addresses and corresponding spare sector addresses are recorded, when it is detected that the recorded sector in the original sector area is a bad sector, the spare sector map is created. The address of the replacement sector corresponding to the defective sector is read and the address of the replacement sector corresponding to the defective sector is recognized, and the replacement sector is accessed.
次に本発明の実施例について図面を参照して説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第１図は、本発明の一実施例に使用する光ディスク媒体
の論理構造を示す構造図である。FIG. 1 is a structural diagram showing the logical structure of an optical disk medium used in an embodiment of the present invention.
第１図において、原始セクタ領域１と交替セクタ領域３
とはそれぞれ第２図の光ディスク媒体の原始セクタ領域
１１および交替セクタ領域１３に対応ずる。交替セクタ
マツプ２は、原始セクタ領域１中の不良セクタのアドレ
スとそれに対応する交替セクタのアドレスをこの光テイ
スク媒体上の全不良セクタに対して記録する領域である
。原始セクタに対応ずる交替セクタマップ２の交替セク
タをアクセスするときは、まず交替セクタマツプ２を一
括して読込み、その中から不良セクタのアドレス３に対
応する交替セクタのアドレスＢを詔，識して交替セクタ
領域３に対してアクセスを行う。In FIG. 1, original sector area 1 and replacement sector area 3
correspond to the original sector area 11 and replacement sector area 13 of the optical disc medium in FIG. 2, respectively. The replacement sector map 2 is an area in which addresses of bad sectors in the original sector area 1 and addresses of corresponding replacement sectors are recorded for all the bad sectors on this optical disk medium. When accessing the replacement sector of the replacement sector map 2 corresponding to the original sector, first read the replacement sector map 2 all at once, and then select and identify address B of the replacement sector corresponding to address 3 of the bad sector. The spare sector area 3 is accessed.
以上説明したように、本発明の光ディスク装置は、従来
の光ディスク媒体の論理構造に交替セクタマップを付加
することにより、交替セクタに関する処理時間を短縮す
ることができるという効果がある。As described above, the optical disc device of the present invention has the effect of shortening the processing time regarding replacement sectors by adding a replacement sector map to the logical structure of a conventional optical disc medium.
第１図は本発明の光ディスク装置に用いる光ディスク媒
体の論理構造を示す構造図、第２図は従来の光ディスク
装置に用いる光ディスク媒体の論理構造を示す構造図で
ある。FIG. 1 is a structural diagram showing the logical structure of an optical disc medium used in an optical disc device of the present invention, and FIG. 2 is a structural diagram showing the logical structure of an optical disc medium used in a conventional optical disc device.
Claims (1)
タ領域と、前記記録セクタのうちの不良セクタの置換用
として使用する複数個の交替セクタを有する交替セクタ
領域と、前記不良セクタのアドレスとそれに対応する交
替セクタのアドレスとを記録した交替セクタマップとを
有する光ディスク媒体を用い、前記原始セクタ領域中の
前記記録セクタが不良セクタであることを検出したとき
、前記交替セクタマップを読出して前記不良セクタに対
応する交替セクタのアドレスを認識して前記交替セクタ
に対してアクセスを行うことを特徴とする光ディスク装
置。A source sector area having a recording sector for recording normal data, a replacement sector area having a plurality of replacement sectors used to replace a bad sector among the recording sectors, and an address of the bad sector and its corresponding address. When it is detected that the recorded sector in the original sector area is a bad sector using an optical disk medium having a spare sector map in which addresses of spare sectors are recorded, the spare sector map is read out and the spare sector map is recorded. An optical disc device characterized in that the address of the corresponding spare sector is recognized and the spare sector is accessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5118689A JPH02230557A (en) | 1989-03-02 | 1989-03-02 | Optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5118689A JPH02230557A (en) | 1989-03-02 | 1989-03-02 | Optical disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02230557A true JPH02230557A (en) | 1990-09-12 |
Family
ID=12879833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5118689A Pending JPH02230557A (en) | 1989-03-02 | 1989-03-02 | Optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02230557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04243061A (en) * | 1991-01-18 | 1992-08-31 | Matsushita Electric Ind Co Ltd | flexible magnetic disk device |
| EP0798713A3 (en) * | 1996-03-25 | 1998-08-19 | Kabushiki Kaisha Toshiba | Optical disk device and replacement processing method |
-
1989
- 1989-03-02 JP JP5118689A patent/JPH02230557A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04243061A (en) * | 1991-01-18 | 1992-08-31 | Matsushita Electric Ind Co Ltd | flexible magnetic disk device |
| EP0798713A3 (en) * | 1996-03-25 | 1998-08-19 | Kabushiki Kaisha Toshiba | Optical disk device and replacement processing method |
| US5982729A (en) * | 1996-03-25 | 1999-11-09 | Kabushiki Kaisha Toshiba | Optical disk device and replacement processing method |
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