JPH0413276A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPH0413276A JPH0413276A JP2115389A JP11538990A JPH0413276A JP H0413276 A JPH0413276 A JP H0413276A JP 2115389 A JP2115389 A JP 2115389A JP 11538990 A JP11538990 A JP 11538990A JP H0413276 A JPH0413276 A JP H0413276A
- Authority
- JP
- Japan
- Prior art keywords
- sector
- sectors
- information recording
- plural
- recording medium
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims description 21
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、光ディスクのような光情報記録媒体に関する
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an optical information recording medium such as an optical disc.
情報を記録するための複数のセクターを有する回転型光
情報記録媒体はすでに知られている。Rotating optical information recording media having multiple sectors for recording information are already known.
通常、情報は「通常書き込みエリア」に書き込まれる。Normally, information is written to a "normal write area".
そして、例えば、セクターで書き込みエラーが生じた場
合には、同じ情報をそのセクターが存在したトラックの
第１の交替エリアへ書き込む。このときに、すでに第１
の交換エリアが全て使用されている場合には、同じ情報
を第２の交替エリアへ書き込んでいた。しかし。For example, if a write error occurs in a sector, the same information is written in the first replacement area of the track where that sector existed. At this time, the first
If all of the replacement areas were used, the same information was written to the second replacement area. but.
第２の交替エリアに傷等で書き込み不能の事情が生ずる
とこの光デイスク全体が使用不能となってしまう。If a situation arises in which writing is impossible due to scratches or the like in the second replacement area, the entire optical disc becomes unusable.
そこで、本出願人は特開昭６３−７０９２８号公報にお
いて、第３の交替エリアを割り当てることを提案した。Therefore, the present applicant proposed allocating a third replacement area in Japanese Unexamined Patent Publication No. 63-70928.
ところが、回転型光情報記録媒体は、その製造工程にお
いて、径方向に記録層又は反射層の膜厚むらが生じたり
、基板の複屈折むらがあったり、プリオーマットの溝、
ピットの巾、大きさ、深さ等のむらが発生する。However, during the manufacturing process of rotary optical information recording media, uneven thickness of the recording layer or reflective layer occurs in the radial direction, uneven birefringence of the substrate, grooves in the pre-omat,
Unevenness occurs in the width, size, depth, etc. of the pit.
しかしながら、従来の光情報記録媒体ではこれらのムラ
により生ずる記録、信号の乱れを光情報記録媒体自体で
補正するという考え方は存在していない。However, in conventional optical information recording media, there is no concept of correcting recording and signal disturbances caused by these unevenness using the optical information recording medium itself.
本発明の目的は、光情報記録媒体の製造工程において生
ずる前述の各種の゛むら”に伴って発生する信号のばら
つきをそれ自体で修正できる構成の光情報記録媒体を提
供する点にある。SUMMARY OF THE INVENTION An object of the present invention is to provide an optical information recording medium having a structure that can correct signal variations caused by the various unevennesses mentioned above that occur in the manufacturing process of the optical information recording medium.
本発明は、情報を記録するための複数のセクターを有す
る回転型光情報記録媒体において。The present invention relates to a rotary optical information recording medium having a plurality of sectors for recording information.
情報記録領域全体を複数のセクター毎に整数分割し、分
割されたブロックの先頭または末尾に他の各セクターの
データ部に較べデータ部の長いセクターを配置したこと
を特徴とする光情報記録媒体に関する。An optical information recording medium characterized in that the entire information recording area is divided into a plurality of integer sectors, and a sector with a longer data section than the data section of each other sector is placed at the beginning or end of each divided block. .
すなわち、本発明は、情報を記録するための複数のセク
ターを有する回転型の光情報記録媒体において、これら
のセクターを複数の第１セクター群に分け、更にこれら
の第１セクター群を複数の第２セクター群に分け、これ
らの第２セクター群毎に代替情報を記録するための１又
は複数の第１の交替エリアを割り当てると共に、前記第
２セクター群に全て共通な代替情報を記録するための１
又は複数の第２の交替エリアを割り当て、前記第１セク
ター群に共通な代替情報を記録するため１又は複数の第
３の交替エリアを割り当て、かつ前記第１セクター群ま
たは第２セクター群の先頭または末尾に他の各セクター
のデータ部に較べデータ部の長いセクターを配置したこ
とを特徴とす光情報記録媒体に関する。That is, the present invention provides a rotating optical information recording medium having a plurality of sectors for recording information, in which these sectors are divided into a plurality of first sector groups, and these first sector groups are further divided into a plurality of first sector groups. The sector is divided into two sector groups, and one or more first replacement areas are assigned to each of these second sector groups for recording alternative information. 1
or assigning a plurality of second replacement areas, allocating one or more third replacement areas to record replacement information common to the first sector group, and at the beginning of the first sector group or the second sector group. Alternatively, the present invention relates to an optical information recording medium characterized in that a sector having a longer data portion than data portions of other sectors is arranged at the end.
なお、前記データ部の長いセクターにおいてはアドレス
部も長くすることが好ましい。Note that in sectors where the data section is long, it is preferable that the address section is also long.
本発明に係る光デスクの情報記録エリアを模型的に示し
た第１図において、セクターナンバーが０〜Ｑまでとす
ると、連続するｍ個の第２セクターより成る第２セクタ
ー群は１トラツクに相当し、この１トラツクをｒ個分で
１単位としてこれを第１セクター（以下セグメントとい
う）と称すれば、光デイスク上の複数のセクターを構成
する任意Φセクター全体は８個のセグメントと（Ｑ−Ｍ
＋１）個の第１セクターによる第３の交替エリアより成
る。つまり、各第２セクターの末尾には第１の交替エリ
アが設けられ、セグメント（第１セクター）を任意のグ
ループ毎に区切る境界部には第２の交替エリアが設けら
れ、各セグメント（第１セクター）中の最終並び位置に
おけるものの末尾には第３の交替エリアが設けられる。In FIG. 1, which schematically shows the information recording area of the optical disk according to the present invention, if the sector numbers are from 0 to Q, a second sector group consisting of m consecutive second sectors corresponds to one track. However, if this one track is made up of r pieces as one unit and is called the first sector (hereinafter referred to as a segment), then the entire arbitrary Φ sector that constitutes the plurality of sectors on the optical disk consists of 8 segments and (Q -M
+1) first sectors. In other words, a first replacement area is provided at the end of each second sector, a second replacement area is provided at the boundary that separates the segments (first sector) into arbitrary groups, and a second replacement area is provided at the end of each segment (first sector). A third replacement area is provided at the end of the final alignment position in the sector.
分割されたブロックは、第１図でいう通常書き込みエリ
ア、第１．２．３の交替エリアを含めたものであり、第
１図のＯｌｌ、・・・・・Ｑ、 Ｑ＋１はセクターを表
わし、その各々にＩＤ部、ＤＡＴＡ部がそれぞれ存在す
る。The divided blocks include the normal writing area in Figure 1 and the replacement area in 1.2.3, and Oll, ...Q, and Q+1 in Figure 1 represent sectors; Each of them has an ID section and a DATA section.
なお、セグメントの個数Ｓは光ディスクのセクター数に
よって決まる。Note that the number of segments S is determined by the number of sectors of the optical disc.
各セグメントはｒ個のトラックよりなり、その中Ｐ個（
例えば擬似トラック番号１〜Ｐまで）に「通常書き込み
エリア」を含み、残り（ｒ−Ｐ）個のトラック（例えば
擬似トラック番号ｒ）を第２の交替エリアとしている。Each segment consists of r tracks, of which P (
For example, pseudo track numbers 1 to P) include a "normal write area", and the remaining (r-P) tracks (for example, pseudo track number r) are used as second replacement areas.
そして、前記Ｐ個の各トラックは「通常書き込みエリア
」を構成する（Ｑ＋１）個の通常書き込みセクターと第
１の交替エリアを構成する（ｍ−Ｑ−１）個の第１の交
替セクターより成る。Each of the P tracks consists of (Q+1) normal write sectors forming a "normal write area" and (m-Q-1) first spare sectors forming a first spare area. .
各セクターは例えば第２図に示す如く構成されている。Each sector is configured as shown in FIG. 2, for example.
すなわち、各セクターのナンバーが予め記録されている
部分と、数セクターが不良セクターであるかどうかを示
す符号を書き込める部分とを有するＩＤ部１００がある
。そして、このＩＤ部１００よりギャップをおいて情報
書き込み用のデータ部２００があり、このデータ部２０
０に隣接して、該セクターが交替セクターである場合に
、どのセクターの交替セクターであるかを示す（交替の
生じたセクタ一番号を示す）交替セクターナンバ一部３
００がある。That is, there is an ID section 100 that has a part in which the number of each sector is recorded in advance, and a part in which a code indicating whether several sectors are bad sectors can be written. There is a data section 200 for writing information with a gap from this ID section 100, and this data section 20
Adjacent to 0, if the sector is a replacement sector, a replacement sector number part 3 that indicates which sector is the replacement sector (indicates the number of the sector where replacement has occurred).
There is 00.
又、第１図中の末尾のＤＡＴＡ部の長いＩＤ部は、その
ＩＤ部に傷、欠陥が存在し読出し不能となることをさけ
るため通常のＩＤ情報量を繰返し、２〜数十回設けてお
くことが好ましい。In addition, the long ID part of the DATA part at the end in Figure 1 is created by repeating the normal amount of ID information two to several dozen times to avoid scratches or defects in the ID part that make it unreadable. It is preferable to leave it there.
本発明の領域は万一の場合を除いてそのほとんどの部分
が書き込まれない領域であるが、ディスクの径方向に数
〜数十ケ所ずつ設けであるため、ディスクの径方向に対
する反射率等のばらつきを前記領域中で駆動装置により
、測定し面内（径方向）の信号特性が一定となるように
読出し、書き込みパワーを調節する指示を廃動装置にメ
モリし、記録再生特性の安定化をはかる領域として用い
る。又駆動装置に何かの異変が起こった時などの試し書
きエリアとしても使用可能である。Most of the areas in the present invention are not written to except in the case of an emergency, but since they are provided at several to several dozen locations in the radial direction of the disk, the reflectance in the radial direction of the disk, etc. The dispersion is measured by a drive device in the area, read out so that the in-plane (radial direction) signal characteristics are constant, and an instruction to adjust the write power is memorized in the deactivation device to stabilize the recording and reproducing characteristics. Used as an area to measure. It can also be used as a test writing area in case something goes wrong with the drive device.
従来の代替セクターは上記第３交替までしか設けられて
いないがディスクに致命的な大きな傷等が発生した場合
など以外は、充分な代替量であるが万一重要な情報の入
った媒体を、傷つけてしまった場合などに本発明のデー
タ部分の長いセクター領域を使用すればよい。Conventional alternative sectors are provided only up to the third replacement mentioned above, but unless there is a fatal major scratch on the disk, there is a sufficient amount of replacement sectors, but in the unlikely event that a medium containing important information is In case of damage, etc., the long sector area of the data part of the present invention can be used.
又、出荷時のディスクの欠陥検査情報の詳細を、該領域
にあらかじめ記録しておいてもよいし、又は製造日時、
条件などのディスク管理情報を入れておくのもよい。Further, detailed defect inspection information of the disk at the time of shipment may be recorded in this area in advance, or the date and time of manufacture,
It is also a good idea to include disk management information such as conditions.
本発明のＤＡＴＡ部の長さが長いのは、面内の特性のば
らつきを校正する際、トラック信号。The reason why the DATA section of the present invention is long is that it is used for track signals when calibrating variations in in-plane characteristics.
フォカス信号にアドレス情報の信号の混存を防ぐために
長くしたものであり、好ましい長さとしては従来のＤＡ
ＴＡ部の５〜１０００倍程度である。It is made longer to prevent the address information signal from coexisting with the focus signal, and the preferred length is that of the conventional DA.
It is about 5 to 1000 times that of the TA part.
なお、書き込み、読み出し動作については、特開昭６３
−７０９２８号の発明の場合と同様である。Regarding write and read operations, please refer to Japanese Patent Application Laid-Open No. 63
This is the same as the case of the invention of No.-70928.
本発明は、媒体の半径方向に前述のような各種のむらが
存在することによる信号のむらをデータ部の長いセクタ
ーによりモニターし、その近傍にある本来の信号と比較
して修正することができるので、高品位の光情報記録媒
体に機能しうる。According to the present invention, signal unevenness caused by the presence of various unevennesses in the radial direction of the medium can be corrected by monitoring the long sector of the data section and comparing it with the original signal in the vicinity. It can function as a high-quality optical information recording medium.
また、前述のように修正が可能であるため、従来のタイ
プのものでは使用できなかったような各種製造工程上の
むらのあるディスクでも、使用することができるので、
製造工程の歩留まりが飛躍的に向上した。In addition, since it can be corrected as mentioned above, it can be used even with discs that have irregularities due to various manufacturing processes that could not be used with conventional types.
The yield of the manufacturing process has improved dramatically.
第１図は、本発明の光情報記録媒体のセクターをエリア
別にモデル的に表わした説明図であり、第２図は、各セ
クターの構成を示す図面である。
第１図FIG. 1 is an explanatory diagram showing a model of the sectors of the optical information recording medium of the present invention by area, and FIG. 2 is a diagram showing the configuration of each sector. Figure 1
Claims (1)
型光情報記録媒体において、情報記録領域全体を複数の
セクター毎に整数分割し、分割されたブロックの先頭ま
たは末尾に他の各セクターのデータ部に較べデータ部の
長いセクターを配置したことを特徴とする光情報記録媒
体。1. In a rotating optical information recording medium having multiple sectors for recording information, the entire information recording area is divided into integral numbers of sectors, and the data of each other sector is placed at the beginning or end of each divided block. 1. An optical information recording medium characterized in that sectors are arranged such that the data part is longer than the data part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2115389A JP3071803B2 (en) | 1990-05-01 | 1990-05-01 | Optical information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2115389A JP3071803B2 (en) | 1990-05-01 | 1990-05-01 | Optical information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0413276A true JPH0413276A (en) | 1992-01-17 |
| JP3071803B2 JP3071803B2 (en) | 2000-07-31 |
Family
ID=14661338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2115389A Expired - Fee Related JP3071803B2 (en) | 1990-05-01 | 1990-05-01 | Optical information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3071803B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6151292A (en) * | 1992-10-05 | 2000-11-21 | Mitsubishi Denki Kabushiki Kaisha | Optical disk having sequentially numbered sectors and logical tracks formed by a series of 2n sectors, and disk drive apparatus for using such an optical disk |
| US6529451B2 (en) | 1992-10-05 | 2003-03-04 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US6615363B1 (en) | 1999-03-19 | 2003-09-02 | Hitachi Maxell, Ltd. | Optical disk and method of recording on the same |
| US7548497B2 (en) | 1992-10-05 | 2009-06-16 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US7566417B2 (en) | 2002-08-08 | 2009-07-28 | Kobe Steel, Ltd. | Ag base alloy thin film and sputtering target for forming Ag base alloy thin film |
-
1990
- 1990-05-01 JP JP2115389A patent/JP3071803B2/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7548497B2 (en) | 1992-10-05 | 2009-06-16 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US6930965B2 (en) | 1992-10-05 | 2005-08-16 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US6434099B1 (en) | 1992-10-05 | 2002-08-13 | Mitsubishi Denki Kabushiki Kaisha | Optical disk having an attribute which designates whether a recording area permits rewriting or not |
| US6526019B2 (en) | 1992-10-05 | 2003-02-25 | Mitsubishi Denki Kabushiki Kaisha | Optical disk having a recording area on each side and attribute data designating each recording area as rewriteable or not rewriteable |
| US6529451B2 (en) | 1992-10-05 | 2003-03-04 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US6229784B1 (en) | 1992-10-05 | 2001-05-08 | Mitsubishi Denki Kabushiki Kaisha | Optical disk having an attribute which designates whether a recording area permits rewriting or not |
| US6633525B2 (en) | 1992-10-05 | 2003-10-14 | Mitsubishi Denki Kabushiki Kaisha | Optical disk having an attribute which designates whether a recording area permits rewriting or not |
| US6853611B2 (en) | 1992-10-05 | 2005-02-08 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US7924693B2 (en) | 1992-10-05 | 2011-04-12 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US6834033B2 (en) | 1992-10-05 | 2004-12-21 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US6775220B2 (en) | 1992-10-05 | 2004-08-10 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US7164641B2 (en) | 1992-10-05 | 2007-01-16 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US7207051B2 (en) | 1992-10-05 | 2007-04-17 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US7227815B2 (en) | 1992-10-05 | 2007-06-05 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US7254104B2 (en) | 1992-10-05 | 2007-08-07 | Mitsubishi Denki Kabushiki Kaisha | Optical disk and optical disk drive device |
| US6151292A (en) * | 1992-10-05 | 2000-11-21 | Mitsubishi Denki Kabushiki Kaisha | Optical disk having sequentially numbered sectors and logical tracks formed by a series of 2n sectors, and disk drive apparatus for using such an optical disk |
| US6615363B1 (en) | 1999-03-19 | 2003-09-02 | Hitachi Maxell, Ltd. | Optical disk and method of recording on the same |
| US7566417B2 (en) | 2002-08-08 | 2009-07-28 | Kobe Steel, Ltd. | Ag base alloy thin film and sputtering target for forming Ag base alloy thin film |
| US7776420B2 (en) | 2002-08-08 | 2010-08-17 | Kobe Steel, Ltd. | Ag base alloy thin film and sputtering target for forming Ag base alloy thin film |
| US7722942B2 (en) | 2002-08-08 | 2010-05-25 | Kobe Steel, Ltd. | Ag base alloy thin film and sputtering target for forming Ag base alloy thin film |
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| Publication number | Publication date |
|---|---|
| JP3071803B2 (en) | 2000-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |