JPH0682488B2 - Optical disk device - Google Patents
Optical disk deviceInfo
- Publication number
- JPH0682488B2 JPH0682488B2 JP63295028A JP29502888A JPH0682488B2 JP H0682488 B2 JPH0682488 B2 JP H0682488B2 JP 63295028 A JP63295028 A JP 63295028A JP 29502888 A JP29502888 A JP 29502888A JP H0682488 B2 JPH0682488 B2 JP H0682488B2
- Authority
- JP
- Japan
- Prior art keywords
- quality monitoring
- monitoring data
- optical disk
- recording
- area
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims description 39
- 238000012544 monitoring process Methods 0.000 claims description 38
- 238000013500 data storage Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、光学的に情報を記録−再生−消去する光ディ
スク装置に関し、特にデータ記録−再生−消去動作に付
随する光ディスク媒体の品質劣化を監視し管理する領域
及び記録方法に関するものである。Description: TECHNICAL FIELD The present invention relates to an optical disc device for optically recording, reproducing, and erasing information, and particularly, to prevent quality deterioration of an optical disc medium associated with data recording, reproducing, and erasing operations. The present invention relates to an area to be monitored and managed and a recording method.
レーザ光を外部の情報からの信号で変調し、光学的に記
録媒体に集束して照射することにより情報を記録−消去
し、あるいは一定強度の集束されたレーザ光を記録媒体
に照射して既に記録された情報を読み取る光学的情報記
録−再生−消去装置、たとえば光ディスク装置において
は光ビームによる光ディスク媒体の寿命を知るための処
理を行っていない。一般に書換え可能な光ディスク装置
において、使用される光ディスク媒体は使用用途により
一度記録されたデータを消去し再度同じ領域に記録した
りする為、この記録−再生−消去を何度を繰り返してゆ
くと、光ディスク媒体は劣化しエラー発生頻度が高くな
る。Information is recorded / erased by modulating laser light with a signal from external information and then irradiating the recording medium by focusing it optically, or by irradiating the recording medium with focused laser light of a certain intensity. In an optical information recording / reproducing / erasing apparatus for reading recorded information, for example, an optical disk apparatus, processing for knowing the life of an optical disk medium by a light beam is not performed. Generally, in a rewritable optical disk device, an optical disk medium to be used erases data once recorded and records again in the same area depending on the intended use. Therefore, if this recording-reproducing-erasing is repeated many times, The optical disk medium deteriorates and the frequency of error occurrence increases.
上述した従来の書換え可能な光ディスク装置では、光デ
ィスク媒体がレーザー光の記録−再生−消去の繰り返し
により劣化し光ディスク媒体の寿命を知り得る手段が無
いため、回復不能なエラーにより貴重なデータを再生す
る事ができなくなる可能性がある。In the above-described conventional rewritable optical disk device, the optical disk medium deteriorates due to repeated recording, reproduction, and erasing of laser light, and there is no means for knowing the life of the optical disk medium. Therefore, valuable data is reproduced due to an unrecoverable error. You may not be able to do things.
本発明の目的は上述したような、問題点を効果的に解決
し、記録データの信頼性を光ディスク装置に提供するこ
とにある。すなわち、本発明の光ディスク装置は、ディ
スク媒体に対し光学的に情報を記録、再生および消去を
行う光ディスク装置において、前記ディスク媒体に設け
られた記録データの品質監視のための品質監視データを
格納する品質監視データ領域領域と、この品質監視デー
タ格納領域内の前記品質監視データを更新するとともに
前記品質監視データ領域内における前記品質監視データ
の格納位置を更新毎に変化させる手段と、前記品質監視
データ領域内の前記品質監視データが予め設定されたし
きい値を超えた時外部に報告する手段とを有する。An object of the present invention is to effectively solve the above-mentioned problems and provide the reliability of the recorded data to the optical disk device. That is, the optical disk device of the present invention stores quality monitoring data for quality monitoring of recorded data provided on the disk medium in the optical disk device for optically recording, reproducing and erasing information on the disk medium. A quality monitoring data area area, means for updating the quality monitoring data in the quality monitoring data storage area, and means for changing the storage position of the quality monitoring data in the quality monitoring data area for each update, and the quality monitoring data Means for externally reporting when the quality monitoring data in the area exceeds a preset threshold value.
次に、図面を参照して本発明を詳しく説明する。第１図
は本発明の一実施例を示す模式的構成図である。本発明
の光ディスク装置はホストシステムＡからの命令信号１
を受けて必要動作を解読する命令解読手段Ｂと、命令解
読手段Ｂからの命令信号２を受けて記録−再生−消去手
段Ｃを介して命令信号３により駆動する光ヘッドＤと、
光ヘッドＤによりデータの記録−再生−消去される光デ
ィスク媒体Ｅと、光ディスク媒体Ｅからの記録−再生−
消去の結果データ信号４を受けて品質監視の為のデータ
を編集管理する品質監視手段Ｆと、編集されたデータを
再度光ディスク媒体Ｅに記録するための命令信号５、光
ディスク媒体Ｅから光ヘッドＤによる記録−再生−消去
のデータ信号６、記録−再生−消去手段Ｃから命令解読
手段Ｂへのデータ信号７、命令解読手段Ｂからホストシ
ステムＡへのデータ信号８、から構成されている。第２
図は本発明の一実施例で、使用される光ディスク媒体Ｅ
はアクセス可能なデータトラックエリアＧの最内周側に
品質監視データ領域Ｈを設けている。Next, the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention. The optical disk device of the present invention uses the command signal 1 from the host system A.
An instruction decoding means B for receiving and decoding the necessary operation, and an optical head D for receiving an instruction signal 2 from the instruction decoding means B and driving it with an instruction signal 3 through a recording-reproducing-erasing means C.
Optical disk medium E on which data is recorded, reproduced, and erased by the optical head D, and recording, reproduction, and data from the optical disk medium E are performed.
A quality monitoring means F for receiving and editing the result data signal 4 for editing and managing the data for quality monitoring, a command signal 5 for recording the edited data on the optical disk medium E again, and an optical head D from the optical disk medium E. The recording / reproducing-erasing data signal 6, the data signal 7 from the recording / reproducing-erasing means C to the instruction decoding means B, and the data signal 8 from the instruction decoding means B to the host system A. Second
The figure shows one embodiment of the present invention, which is an optical disk medium E used.
Provides a quality monitoring data area H on the innermost side of the accessible data track area G.
ホストシステムＡから記憶−再生−消去命令を受ける
と、先ず命令に含まれる目的アドレスを命令解読手段Ｂ
で算出し記録−再生−消去手段Ｃ、ヘッドＤを介して光
ディスク媒体Ｅへ記録−再生−消去の処理を行う。この
時の処理で受け取った結果データ信号４は品質監視手段
Ｆの中で品質監視用のデータだけを編集し、その結果編
集された品質監視データを再度光ディスク媒体Ｅの品質
監視データ領域Ｈへ記録するために命令信号５を発行す
る。この命令信号５を受けて記録−再生−消去手段Ｃ
は、光ディスク媒体Ｅへ記録処理を行う。この時品質監
視手段Ｆで編集された品質監視データが、ある一定のし
きい値を越えていた場合直ちに記録−再生−消去手段
Ｃ、命令解読手段Ｂを介してホストシステムＡに使用中
の光ディスク媒体Ｅの信頼性の低下を報告する。また、
この品質監視データ領域Ｈへ品質監視データを記録する
際に品質監視データ領域Ｈの品質確保も同時に行わなけ
ればならない。この実施例では最内周から記録−再生専
用の光ディスク装置と同様な方法にて毎回１つ詰めで、
品質監視データ領域Ｈの記録可能な領域が全部埋まるま
で記録処理を行い、この品質監視データ領域Ｈが全部記
録された時点で品質監視データ領域Ｈを全て消去し最内
周の領域からまた使用する方法をとる。この時に品質監
視データ領域Ｈの消去回数にもある一定のしきい値を設
け、このしきい値に達した場合にも直ちに記録−再生−
消去手段Ｃ、命令解読手段Ｂを介してホストシステムＡ
に使用中の光ディスク媒体Ｅの信頼性の低下を報告す
る。以上２つのある一定のしきい値とは、光ディスク媒
体Ｅの信頼性の保証できる最低値の事をそれぞれ指す。When a store-play-erase command is received from the host system A, the target address included in the command is first decoded by the command decoding means B.
The recording / reproducing-erasing process is performed on the optical disc medium E via the recording-reproducing-erasing means C and the head D. In the result data signal 4 received by the processing at this time, only quality monitoring data is edited in the quality monitoring means F, and the quality monitoring data edited as a result is recorded again in the quality monitoring data area H of the optical disc medium E. In order to do so, the command signal 5 is issued. Receiving this command signal 5, recording / reproducing / erasing means C
Performs a recording process on the optical disc medium E. At this time, if the quality monitoring data edited by the quality monitoring means F exceeds a certain threshold value, the optical disc being used by the host system A is immediately passed through the recording-reproducing-erasing means C and the instruction decoding means B. Report a decrease in reliability of medium E. Also,
When recording the quality monitoring data in the quality monitoring data area H, the quality of the quality monitoring data area H must be secured at the same time. In this embodiment, from the innermost circumference, one is packed each time by a method similar to that of an optical disk device dedicated to recording and reproduction.
Recording processing is performed until all recordable areas of the quality monitoring data area H are filled, and when the quality monitoring data area H is completely recorded, the quality monitoring data area H is completely erased and used again from the innermost area. Take the way. At this time, a certain threshold value is set for the number of times the quality monitoring data area H is erased, and when this threshold value is reached, recording-reproducing-is immediately performed.
Host system A through erasing means C and instruction decoding means B
We report a decrease in reliability of the optical disk medium E being used. The above-mentioned two certain thresholds refer to the minimum values at which the reliability of the optical disc medium E can be guaranteed.
以上説明したように本発明の光ディスク装置は、光ビー
ムによる記録−再生−消去の処理が同一媒体上で何度も
繰り返されて行くにつれて起こる、媒体劣化によるエラ
ー頻度をカウントし、同一媒体上の品質監視データ領域
に記録しかつ、品質監視領域の消去回数においても媒体
の品質管理を行うので現在使用中の媒体がどの程度劣化
しているのかを確認する事ができる。この事より貴重な
データが媒体の劣化による欠陥で再生が不可能になる様
な事態を回避し、光ディスク装置に対する信頼性を高め
るのに有効である。As described above, the optical disk device of the present invention counts the error frequency due to medium deterioration, which occurs as the recording-reproducing-erasing process by the light beam is repeated many times on the same medium, and the optical frequency on the same medium is counted. Since the quality of the medium is recorded in the quality monitoring data area and the quality of the medium is controlled even in the number of times the quality monitoring area is erased, it is possible to confirm how much the medium currently in use is deteriorated. This is effective in avoiding a situation in which valuable data cannot be reproduced due to a defect due to deterioration of the medium and enhances reliability of the optical disk device.
特に現在一般的になりつつある光磁気ディスク装置にお
いて本発明が有効であることは言うまでもない。It goes without saying that the present invention is particularly effective in magneto-optical disk devices which are becoming more popular now.
第１図は本発明の、一実施例を示す模式的構成図、第２
図は本発明の実施例で使用される光ディスク媒体Ｅのト
ラックエリアの構成を示す図である。 Ａ……ホストシステム、Ｂ……命令解読手段、Ｃ……記
録−再生−消去手段、Ｄ……光ヘッド、Ｅ……光ディス
ク媒体、Ｆ……品質監視手段、Ｇ……ユーザーデータト
ラックエリア、Ｈ……品質監視データ領域。FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention, and FIG.
The figure shows the structure of the track area of the optical disc medium E used in the embodiment of the present invention. A ... Host system, B ... Command decoding means, C ... Recording-reproducing-erasing means, D ... Optical head, E ... Optical disk medium, F ... Quality monitoring means, G ... User data track area, H: Quality monitoring data area.
Claims (1)
再生および消去を行う光ディスク装置において、 前記ディスク媒体に設けられ記録データの品質監視のた
めの品質監視データを格納する品質監視データ領域領域
と、 この品質監視データ格納領域内の前記品質監視データを
更新するとともに前記品質監視データ領域内における前
記品質監視データの格納位置を更新毎に変化させる手段
と、 前記品質監視データ領域内の前記品質監視データが予め
設定されたしきい値を超えた時外部に報告する手段とを
有することを特徴とする光ディスク装置。1. Information is optically recorded on a disk medium,
In an optical disk device for reproducing and erasing, a quality monitoring data area area for storing quality monitoring data for quality monitoring of recorded data provided on the disk medium, and updating the quality monitoring data in the quality monitoring data storage area. And means for changing the storage position of the quality monitoring data in the quality monitoring data area at each update, and externally when the quality monitoring data in the quality monitoring data area exceeds a preset threshold value. An optical disk device comprising: means for reporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63295028A JPH0682488B2 (en) | 1988-11-21 | 1988-11-21 | Optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63295028A JPH0682488B2 (en) | 1988-11-21 | 1988-11-21 | Optical disk device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02141964A JPH02141964A (en) | 1990-05-31 |
| JPH0682488B2 true JPH0682488B2 (en) | 1994-10-19 |
Family
ID=17815390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63295028A Expired - Lifetime JPH0682488B2 (en) | 1988-11-21 | 1988-11-21 | Optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0682488B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1816645A1 (en) * | 2006-02-02 | 2007-08-08 | Thomson Licensing S.A. | Method for controlling the quality of storage media |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54118212A (en) * | 1978-03-06 | 1979-09-13 | Nec Corp | Disc memory device |
-
1988
- 1988-11-21 JP JP63295028A patent/JPH0682488B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02141964A (en) | 1990-05-31 |
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