JPS62188067A - Information recording and reproducing device - Google Patents

Information recording and reproducing device

Info

Publication number
JPS62188067A
JPS62188067A JP2893086A JP2893086A JPS62188067A JP S62188067 A JPS62188067 A JP S62188067A JP 2893086 A JP2893086 A JP 2893086A JP 2893086 A JP2893086 A JP 2893086A JP S62188067 A JPS62188067 A JP S62188067A
Authority
JP
Japan
Prior art keywords
information
sector
address
bit
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.)
Granted
Application number
JP2893086A
Other languages
Japanese (ja)
Other versions
JPH0795388B2 (en
Inventor
Takayuki Aizawa
隆之 相澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP61028930A priority Critical patent/JPH0795388B2/en
Publication of JPS62188067A publication Critical patent/JPS62188067A/en
Publication of JPH0795388B2 publication Critical patent/JPH0795388B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To evade a status impossible to reproduce a bit of recording information due to impossibility of reproduction of a bit of address information, by recording a bit of information to be recorded in a desired sector, when bits of address information more than a fixed number are impossible to be reproduced in the reproduction of the bit of address information, at an alternative sector. CONSTITUTION:An optical disk is constituted with sectors s0-sn consisting of address parts a0-an, and data parts d0-dn. When the address part of the sector part is reproduced, and a coincidence with the address of an objected sector is obtained. the bit of information at the data part of the sector is reproduced, or the bit of information is recorded at the data part. The reproduction of the address part is performed at an address reproduction circuit 33, and when the bit of address information is reproduced exactly, the count value of a counter circuit 34 is counted up. After the completion of the reproduction of the bit of address information, the outputs of the circuits 33 and 34 are compared at a comparator 35, and when the bits of address information more than the regulated number of bits of address information are not reproduced, an alternative sector processing is performed, thereby, the bit of information to be recorded at the requested sector being recorded at the alternative sector, and it is possible to evade the status impossible to reproduce the bit of recording information caused by the reproduction impossible of the bit of address information.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は情報記録再生装置におけるセクタのアドレス再
生に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to sector address reproduction in an information recording and reproducing apparatus.

〔従来の技術〕[Conventional technology]

従来より、情報記録再生装置としては、磁気ディスク装
置、光デイスク装置、光磁気ディスク等があるが、以下
の記述においては光デイスク装置を例に取り説明する。
Conventionally, information recording and reproducing devices include magnetic disk devices, optical disk devices, magneto-optical disks, etc., and in the following description, an optical disk device will be taken as an example.

第2図は光デイスク装置に使用する光ディスクのフォー
マットを示す平面図である。光ディスクは同図に示すよ
うに、アドレス部a O”” a n 、データ部d0
〜d7から成るセクタ30〜s7で構成されている。
FIG. 2 is a plan view showing the format of an optical disc used in the optical disc device. As shown in the figure, the optical disc has an address part a O"" a n and a data part d0.
It is composed of sectors 30 to s7 consisting of sectors 30 to d7.

目的のセクタに情報の記録又は再生を行なうには、セク
タのアドレス部を再生し、目的のセクタのアドレスと一
致した場合、該セクタのデータ部の情報を再生もしくは
データ部に情報の記録を行なう。従ってセクタのアドレ
ス部に欠陥等があり、ア″ドレスの再生が不可能な場合
、セクタへの情報のアクセスが不可能になり、光ディス
クへの正確な情報の記録ができなくなったり、記録した
情報の再生ができなくなったりして結果的に記録した情
報の喪失につながる恐れがある。
To record or reproduce information in a target sector, reproduce the address part of the sector, and if it matches the address of the target sector, reproduce the information in the data part of the sector or record the information in the data part. . Therefore, if there is a defect in the address part of a sector and the address cannot be reproduced, it becomes impossible to access information to the sector, and it becomes impossible to accurately record information on the optical disc, or the recorded information There is a possibility that the recorded information may be lost as a result.

そこで従来では、例えば各セクタのフォーマットを第5
図に示すように複数のアドレス部IDを設け、アドレス
部の破壊に対処している。
Therefore, in the past, for example, the format of each sector was
As shown in the figure, a plurality of address section IDs are provided to cope with destruction of the address section.

同図において、1は各セクタの開始位置を示すS、M 
(sector mark) 、Zo、 Z l、 +
++、 Zn−+、1はそれぞれ各セクタのアドレス部
、10 (ident if 1er)、3は円盤の回
転変動を吸収するGAP、 4は後続フィールドの同期
タイミングを示す5YNC(synchr。
In the figure, 1 indicates the starting position of each sector, S, M
(sector mark) , Zo, Z l, +
++, Zn-+, 1 are the address parts of each sector, 10 (ident if 1er), 3 are GAP that absorbs rotational fluctuations of the disk, 4 is 5YNC (synchr) indicating the synchronization timing of the subsequent field.

n1zation mark)、5はA、M(adrr
ess mark)、6は情報を記録するデータ領域、
7は誤り率を減少させるための誤り訂正符号E、C0C
(error correctingcode)、8は
GAPである。また各アドレス部ID。
n1zation mark), 5 is A, M (adrr
ess mark), 6 is a data area for recording information,
7 is an error correction code E, C0C to reduce the error rate.
(error correcting code), 8 is GAP. Also each address part ID.

−ID、(n≧0)は、9の5YNC,10のA、 M
 (adrresmark) 、11のT、N (Tr
ack number)、12のS、N(sector
 number) 、13のCRC(cyclic r
edencycode) 、l 4のGAPから構成さ
れている。
-ID, (n≧0) is 5YNC of 9, A of 10, M
(adrresmark), 11 T, N (Tr
ack number), 12 S, N (sector
number), 13 CRC (cyclic r
It is composed of 4 GAPs.

アドレス情報の再生面又は不可はCRC13で行い、C
RC13によるアドレス情報の正誤の確認はリアルタイ
ムで行なうことが可能である。
The reproduction side of address information or not is done with CRC13,
Verification of the correctness of address information by the RC 13 can be performed in real time.

第6図は従来例のアドレス情報再生のフローチャートを
示したものである。
FIG. 6 shows a flowchart of address information reproduction in a conventional example.

従来例ではアドレス部IDの再生は、ID175(CR
Cコードによってアドレス情報の正誤をチェックし、再
生不可能であるとID、を再生するという動作を順々に
繰り返し、ID、〜IDnの全てのIDの再生が不可能
な場合、該セクタのアドレス情報再生を不可能と判断し
、該セクタへの記録を断念して交替セクタを設けている
In the conventional example, the address part ID is reproduced using ID175 (CR
The correctness of the address information is checked by the C code, and if it cannot be reproduced, the ID is reproduced. If it is impossible to reproduce the ID, then the address of the sector is It is determined that information reproduction is impossible, and recording to the sector is abandoned and a replacement sector is provided.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、上記のような従来方法では、複数個設け
た全てのアドレス部IDo〜より、、の再生が不可能な
場合にのみ初めて該セクタを欠陥セクタとして扱うため
、次の様な問題点が生じていた。
However, in the above-mentioned conventional method, a sector is treated as a defective sector only when it is impossible to reproduce from all the address sections IDo~, which are provided in multiple numbers, and the following problems arise. was.

それは、セクタに情報を記録する時において、アドレス
部の欠陥個数が多く、極端な場合1つのアドレス部を残
して他のアドレス部は全て欠陥アドレス部の場合、残っ
た1つのアドレス部からアドレス情報の再生が可能であ
るため、該セクタに情報の記録を行なってしまい、該セ
クタから情報を再生する際、その残った1つのアドレス
部の欠陥状態が悪化してアドレス情報の再生が不可能に
なり、該セクタからの情報の再生が不可能になるという
問題点である。
When recording information in a sector, there are a large number of defective address parts, and in extreme cases, if all but one address part are defective, address information can be stored from the remaining one address part. Because information can be played back, information is recorded in that sector, and when information is played back from that sector, the defective state of the remaining address section worsens, making it impossible to play back the address information. This is a problem in that it becomes impossible to reproduce information from the sector.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の目的は上記従来技術の問題点を解決し、アドレ
ス情報再生不可能になる危険性を従来に比べてはるかに
少なくした情報記録再生装置を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide an information recording/reproducing apparatus which solves the above-mentioned problems of the prior art and greatly reduces the risk of becoming unable to reproduce address information compared to the prior art.

以上のような目的は、アドレス情報を記録した複数のア
ドレス部を各々備えた複数のセクタを有する記録媒体に
情報を記録する情報記録再生装置において、所望セクタ
への情報記録に先だって、このセクタに設けられた複数
のアドレス部からアドレス情報を再生する際、ある一定
個数以上のアドレス情報が再生出来なかったときには、
前記セクタの交替セクタを設け、前記所望セクタに記録
すべき情報を交替セクタに記録することを特徴とする情
報記録再生装置により達成される。
The above purpose is to provide an information recording/reproducing apparatus that records information on a recording medium having a plurality of sectors each having a plurality of address sections recording address information, in which a desired sector is recorded before information is recorded in this sector. When reproducing address information from a plurality of provided address sections, if more than a certain number of address information cannot be reproduced,
This is achieved by an information recording and reproducing apparatus characterized in that a replacement sector for the sector is provided, and information to be recorded in the desired sector is recorded in the replacement sector.

また、本発明においては、情報記録時において、前記セ
クタに複数個設けられた前記アドレス部からアドレス情
報を再生する際、ある一定個数以上ID部からのアドレ
ス情報の再生が不可能であり、かつ少なくとも1つのI
D部からのアドレス情報の再生が可能な場合に、前記セ
クタの交替セクタを設け、前記セクタに記録する情報を
交替セクタに記録すると共に、前記セクタにもその情報
を記録するようにすることもできる。
Further, in the present invention, when reproducing address information from a plurality of address sections provided in the sector during information recording, it is impossible to reproduce address information from more than a certain number of ID sections, and at least one I
When it is possible to reproduce the address information from section D, a replacement sector may be provided for the sector, and the information to be recorded in the sector may be recorded in the replacement sector, and the information may also be recorded in the sector. can.

〔作 用〕[For production]

上記のような本発明の情報記録再生装置によれば、欠陥
アドレス部の個数がある一定以上である危険なセクタは
、必ず交替セクタに情報が記録されることになるので、
アドレス情報の再生が不可能になることによる記録情報
の喪失を防ぐことができる。
According to the information recording and reproducing apparatus of the present invention as described above, information is always recorded in a replacement sector in a dangerous sector in which the number of defective address parts exceeds a certain level.
Loss of recorded information due to address information becoming impossible to reproduce can be prevented.

〔実施例〕〔Example〕

以下、本発明に係る情報記録再生装置について具体的な
実施例に基づき説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The information recording and reproducing apparatus according to the present invention will be described below based on specific examples.

本発明の情報記録再生装置は、複数のアドレス部を持つ
セクタに情報を記録するときにおいて、全てのアドレス
部からアドレス情報を再生し、アドレス情報再生不可能
なアドレス情報個数を数え、欠陥アドレス部の個数が全
体の個数と比較しである一定以上になると、該セクタを
欠陥セクタ又は準欠陥セクタとして扱い、交替セクタを
設け、該交替セクタに情報を記録することを特徴として
いる。
The information recording and reproducing apparatus of the present invention, when recording information in a sector having a plurality of address sections, reproduces address information from all address sections, counts the number of address information that cannot be reproduced, and measures the number of address information that cannot be reproduced. When the number of sectors exceeds a certain value compared to the total number, the sector is treated as a defective sector or a quasi-defective sector, a replacement sector is provided, and information is recorded in the replacement sector.

なお、欠陥セクタ又は準欠陥セクタとして扱うさかい目
となる欠陥アドレス部の個数は、アドレス部の全個数お
よび本発明が適用される記録媒体の欠陥発生率等を考慮
して決められるべきものである。
The number of defective address sections to be treated as defective sectors or quasi-defective sectors should be determined in consideration of the total number of address sections and the defect incidence rate of the recording medium to which the present invention is applied. .

第1図は本発明の情報記録再生装置の構成を示す概略ブ
ロック図である。
FIG. 1 is a schematic block diagram showing the configuration of an information recording/reproducing apparatus according to the present invention.

同図において、20はホスト・インターフェース、21
はトラックバッファ、22はB、C0C,,23は変調
回路、24はレーザー駆動回路、25は光学ヘッド、2
6は該ヘッドからの光ビーム、27はリニアモータ、2
8はディスク状等の記録媒体、29はスピンドルモータ
、30はA T (aut。
In the figure, 20 is a host interface, 21
2 is a track buffer, 22 is B, C0C, 23 is a modulation circuit, 24 is a laser drive circuit, 25 is an optical head, 2
6 is a light beam from the head, 27 is a linear motor, 2
8 is a recording medium such as a disk, 29 is a spindle motor, and 30 is AT (aut.

trackking)、 A F (auto foc
using)回路、31はヘッドアンプ、32は復調回
路、33はアドレス再生器、34はカウンタ、35は比
較器、36はコントローラである。
trackking), AF (auto foc)
31 is a head amplifier, 32 is a demodulation circuit, 33 is an address regenerator, 34 is a counter, 35 is a comparator, and 36 is a controller.

第2図は本発明のフローチャートを示した図である。FIG. 2 is a diagram showing a flowchart of the present invention.

第2図のフローチャートを第1図、及びセクタのフォー
マットを示した、前述の第5図を参照しながら説明する
The flowchart of FIG. 2 will be explained with reference to FIG. 1 and the aforementioned FIG. 5, which shows the sector format.

セクタのデータ部6,7に情報の記録を行う際、まずア
ドレス部ID11の再生(第2図のステップ31)をア
ドレス再生回路33で行い、CRC13のチェックによ
り、アドレス情報が正確に再生した場合(ステップS2
のYES)、カウンタ回路34のカウントを1つカウン
トアツプしくステップS3)、セクタに設けられた全て
のアドレス部I Do −I D、アドレス情報の再生
を行う(ステップ81〜S5までのループ)。
When recording information in the data parts 6 and 7 of a sector, first the address part ID11 is reproduced (step 31 in FIG. 2) by the address reproduction circuit 33, and when the address information is accurately reproduced by checking the CRC13. (Step S2
YES), the counter circuit 34 is incremented by one (step S3), and all address sections IDO-ID provided in the sector and address information are reproduced (loop from steps 81 to S5).

全てのアドレス部IDo〜ID、に記録しであるアドレ
ス情報の再生終了後(ステップS4のYES)、そのカ
ウンタ数と再生したアドレス情報を各々、カウンタ回路
34.アドレス再生器33から比較器35へ出力する(
ステップ36)。
After the reproduction of the address information recorded in all the address sections IDo to ID is completed (YES in step S4), the counter number and the reproduced address information are transferred to the counter circuit 34. Output from address regenerator 33 to comparator 35 (
Step 36).

比較器35ではアドレス情報が正確に再生されたカウン
ト数とあらかじめ決められた所定のカウンタ数とを比較
しくステップS7)、正確に再生されたカウント数が所
定のカウント数未満である場合(ステップS7のNo)
 、交替セクタの設定が必要かどうか判断しくステップ
S8)、必要な場合(ステップS8のYES)、交替セ
クタ処理を行なう(ステップ39)。またアドレス情報
が正確に再生されたカウント数が所定のカウント数以上
の場合(ステップS7のYES)、該アドレス部を有効
とみなし、アドレス情報が記録すべき所定のセクタなら
ば(ステップ310のYES)、該セクタへの情報の記
録を行なう(ステップ511)。
The comparator 35 compares the count number at which the address information is accurately reproduced with a predetermined predetermined counter number (step S7), and if the count number at which the address information is accurately reproduced is less than the predetermined count number (step S7). No)
, it is determined whether setting of a replacement sector is necessary (step S8), and if necessary (YES in step S8), replacement sector processing is performed (step S39). Further, if the count number at which the address information has been accurately reproduced is greater than or equal to the predetermined count number (YES in step S7), the address section is regarded as valid, and if it is the predetermined sector where the address information is to be recorded (YES in step S310). ), information is recorded in the sector (step 511).

第2図に示した本発明のフローチャートでは、セクタに
情報を記録する際、アドレス情報が正確に再生されたカ
ウント数が所定のカウント数未満のとき(第2図におい
てステップS7のNo)、該セクタを欠陥セクタとみな
し交替セクタ処理を行なったが、複数個設けられたアド
レス部からのアドレス情報が1つでも正確に行なわれた
場合、該セクタを準欠陥セクタとみなし、準欠陥セクタ
としての処理を行なうことも可能である。
In the flowchart of the present invention shown in FIG. 2, when recording information in a sector, if the count number of correctly reproduced address information is less than a predetermined count number (No in step S7 in FIG. 2), the corresponding The sector is regarded as a defective sector and replacement sector processing is performed, but if even one address information from the multiple address fields is correct, the sector is regarded as a semi-defective sector and the sector is replaced as a semi-defective sector. It is also possible to perform processing.

第3図はそのような本発明のフローチャートを示した図
である。本実施例も第2図に示した前記実施例と基本的
な考え方は同じである。
FIG. 3 is a diagram showing a flowchart of such the present invention. This embodiment also has the same basic idea as the embodiment shown in FIG. 2.

本実施例の場合、正確に再生されたカウント数がOでな
い場合(第3図のステップS9のNo)、アドレス情報
の再生が可能であるため、再生したアドレス情報が所定
のセクタのアドレスと一致した場合(第3図のステップ
S10のYES)、該セクタの情報を記録しく第3図の
ステップ511)、さらに交替セクタを設け、交替セク
タへ情報を記録する(第3図のステップ512)。正確
に再生されたカウント数がOである場合(第3図のステ
ツブS9のYES)、アドレス部からのアドレス情報再
生は不可能となる。この場合、交替セクタを設ける必要
がある場合(第3図のステップ313のYES)は、交
替セクタを設け、交替セクタに情報を記録する(第3図
のステップ512)。
In the case of this embodiment, if the accurately reproduced count number is not O (No in step S9 in FIG. 3), the address information can be reproduced, so the reproduced address information matches the address of a predetermined sector. If so (YES in step S10 in FIG. 3), the information in the sector is recorded (step 511 in FIG. 3), and a replacement sector is further provided and information is recorded in the replacement sector (step 512 in FIG. 3). If the correctly reproduced count number is O (YES in step S9 in FIG. 3), it becomes impossible to reproduce address information from the address section. In this case, if it is necessary to provide a replacement sector (YES in step 313 in FIG. 3), a replacement sector is provided and information is recorded in the replacement sector (step 512 in FIG. 3).

〔発明の効果〕〔Effect of the invention〕

以上、説明した様に、複数のアドレス部を持つセクタに
情報を記録する時において、全てのアドレス部からアド
レス情報を再生し、アドレス情報が正確に再生された数
を数え、数えたカウント数がある所定の数未満のときに
該セクタを欠陥セクタ又は準欠陥セクタとみなし、該セ
クタに対する交替セクタを設け、交替セクタに情報を記
録することでアドレス情報再生不可能による記録情報の
再生が不可能になる危険をはるかに少なくす、ることが
可能になった。
As explained above, when recording information in a sector with multiple address areas, the address information is reproduced from all address areas, the number of times the address information is correctly reproduced is counted, and the counted number is When the number is less than a certain predetermined number, the sector is regarded as a defective sector or a quasi-defective sector, a replacement sector is provided for the sector, and information is recorded in the replacement sector, making it impossible to reproduce the recorded information due to the address information being unreproducible. It is now possible to significantly reduce the risk of

【図面の簡単な説明】 第1図は本発明の情報記録再生装置の構成を示す概略ブ
ロック図、第2図及び第3図はそれぞれ、本発明の情報
記録再生装置の情報記録処理を示すフローチャートであ
る。 第4図は光ディスクのフォーマットを示す図、第5図は
セクタのフォーマットを示す図である。 第6図は従来の情報記録再生装置の情報記録処理を示す
フローチャートである。 2゜、21.・・・2’n−1+2nニアドレス部、3
3ニアドレス再生器、34:カウンタ回路、35:比較
器、36:コントローラ。
[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a schematic block diagram showing the configuration of the information recording and reproducing apparatus of the present invention, and FIGS. 2 and 3 are flowcharts showing the information recording process of the information recording and reproducing apparatus of the present invention, respectively. It is. FIG. 4 is a diagram showing the format of an optical disc, and FIG. 5 is a diagram showing the sector format. FIG. 6 is a flowchart showing information recording processing of a conventional information recording/reproducing apparatus. 2°, 21. ...2'n-1+2n near address section, 3
3 Near address regenerator, 34: Counter circuit, 35: Comparator, 36: Controller.

Claims (2)

【特許請求の範囲】[Claims] (1)アドレス情報を記録した複数のアドレス部を各々
備えた複数のセクタを有する記録媒体に情報を記録する
情報記録再生装置において、 所望セクタへの情報記録に先だって、このセクタに設け
られた複数のアドレス部からアドレス情報を再生する際
、ある一定個数以上のアドレス情報が再生出来なかった
ときには、前記セクタの交替セクタを設け、前記所望セ
クタに記録すべき情報を交替セクタに記録することを特
徴とする情報記録再生装置。
(1) In an information recording/reproducing device that records information on a recording medium having a plurality of sectors each having a plurality of address sections recording address information, prior to recording information in a desired sector, When reproducing address information from the address portion of the address section, if a certain number or more of address information cannot be reproduced, a replacement sector is provided for the sector, and information to be recorded in the desired sector is recorded in the replacement sector. Information recording and reproducing device.
(2)前記交替セクタを設けた所望セクタから少なくと
も1つのアドレス情報が再生出来たときには、記録すべ
き情報を交替セクタに記録すると共に、前記所望セクタ
にもその情報を記録する特許請求の範囲第1号項記載の
情報記録再生装置。
(2) When at least one address information can be reproduced from the desired sector provided with the replacement sector, the information to be recorded is recorded in the replacement sector and the information is also recorded in the desired sector. The information recording and reproducing device according to item 1.
JP61028930A 1986-02-14 1986-02-14 Information recording method Expired - Fee Related JPH0795388B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61028930A JPH0795388B2 (en) 1986-02-14 1986-02-14 Information recording method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61028930A JPH0795388B2 (en) 1986-02-14 1986-02-14 Information recording method

Publications (2)

Publication Number Publication Date
JPS62188067A true JPS62188067A (en) 1987-08-17
JPH0795388B2 JPH0795388B2 (en) 1995-10-11

Family

ID=12262116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61028930A Expired - Fee Related JPH0795388B2 (en) 1986-02-14 1986-02-14 Information recording method

Country Status (1)

Country Link
JP (1) JPH0795388B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5050144A (en) * 1989-12-11 1991-09-17 International Business Machines Corporation Recording intensity modulated signals and polarization-modulated optical signals in the same area of a storage member
US6373800B1 (en) 1998-09-14 2002-04-16 Kabushiki Kaisha Toshiba Information recording apparatus and method with replacement process
US6618337B2 (en) * 2000-01-28 2003-09-09 Matsushita Electric Industrial Co., Ltd. Information recording and reproduction apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167143A (en) * 1981-04-06 1982-10-14 Hitachi Ltd Optical disc recording system
JPS6055432A (en) * 1983-09-05 1985-03-30 Fujitsu Ltd Processing method of defective sector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167143A (en) * 1981-04-06 1982-10-14 Hitachi Ltd Optical disc recording system
JPS6055432A (en) * 1983-09-05 1985-03-30 Fujitsu Ltd Processing method of defective sector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5050144A (en) * 1989-12-11 1991-09-17 International Business Machines Corporation Recording intensity modulated signals and polarization-modulated optical signals in the same area of a storage member
US6373800B1 (en) 1998-09-14 2002-04-16 Kabushiki Kaisha Toshiba Information recording apparatus and method with replacement process
US6493302B2 (en) 1998-09-14 2002-12-10 Kabushiki Kaisha Toshiba Information recording apparatus and method with replacement process
US6618337B2 (en) * 2000-01-28 2003-09-09 Matsushita Electric Industrial Co., Ltd. Information recording and reproduction apparatus

Also Published As

Publication number Publication date
JPH0795388B2 (en) 1995-10-11

Similar Documents

Publication Publication Date Title
EP0194640B1 (en) Information recording and reproducing apparatus
JPH0477391B2 (en)
JPH0423273A (en) Optical disk recording and reproducing device
JPH03162720A (en) Recording medium and reproducing device for this medium
KR950014671B1 (en) Optical information recording & reproducing system medium and method
JP2529192B2 (en) Information recording and playback method
JPS62188067A (en) Information recording and reproducing device
JPS6059540A (en) Recording and reproducing device of optical information
JP2003249038A (en) Method and device for defect detection, information recording and reproducing device, and magnetic disk drive
JP2639520B2 (en) Information recording method
JPH01196775A (en) Alternating processing method for data recording and reproducing device
JPS60121575A (en) Optical information recording and reproducting device
JPS62188064A (en) Information recording and reproducing device
JPH0574051A (en) Synchronous information detector
JPS63293761A (en) Information recording and reproducing device
JPS61242371A (en) Information recording and reproducing device
JPS61292269A (en) Data processing method
JP4079803B2 (en) Optical disc information recording / reproducing apparatus and disc management information acquisition method thereof
JPH01112573A (en) Optical disk controller
JPH09237447A (en) Device and method for inspecting disk
JPH04229465A (en) Optical information recording and reproducing device
JPH04337569A (en) Verifying method immediately after data recording
JPS6076060A (en) Optical information recording and reproducing system
JPH0349077A (en) Digital information recording and reproducing device
JPH04238165A (en) Mark detector of optical recording medium

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees