JPS61294649A - Information recording and reproducing device - Google Patents
Information recording and reproducing deviceInfo
- Publication number
- JPS61294649A JPS61294649A JP60134832A JP13483285A JPS61294649A JP S61294649 A JPS61294649 A JP S61294649A JP 60134832 A JP60134832 A JP 60134832A JP 13483285 A JP13483285 A JP 13483285A JP S61294649 A JPS61294649 A JP S61294649A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- data
- recording medium
- disk
- 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
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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/10504—Recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/10515—Reproducing
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は情報記録再生装置の記録又は再生条件の制御に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to control of recording or reproduction conditions of an information recording and reproduction apparatus.
従来、この種の装置では、レーザーの記録パワー、記録
バイアス磁界強度、２値化のためのスライスレベル等は
、固定あるいは記録媒体を装置へ装着するごとに自動設
定されていた。しかしＤＲＡＷ（Ｄｉｒｅｃｔ Ｒｅ
ａｄ ＡｆｔｅｒＷｒｉｔｅ）タイプの光ディスクの
場合、消去不可部なために、記録パワーの自動調整とい
うのは記録領域、記録回数が有限なため限界がある。ま
た、記録媒体の感度のバラツキなどにより記録されるビ
ットの大きさにも媒体ごとのバラツキが生じ、情報の記
録再生や誤りの原因となる。また消去可能な光磁気ディ
スク等に関しても装着毎に自動設定を行っていたのでは
、実際に装置がデータの記録再生を行うまでそれだけ余
分に時がかかる事になる。Conventionally, in this type of apparatus, the laser recording power, recording bias magnetic field strength, slice level for binarization, etc. were fixed or automatically set each time a recording medium was loaded into the apparatus. However, DRAW (Direct Re
In the case of an optical disk of the ``ad After Write'' type, there is a limit to automatic adjustment of the recording power because the recording area and number of times of recording are limited because the area cannot be erased. Further, due to variations in the sensitivity of the recording media, the size of recorded bits also varies from medium to medium, causing errors in recording and reproducing information. Furthermore, if the settings for erasable magneto-optical disks were automatically performed each time they are loaded, it would take an extra amount of time until the device actually records and reproduces data.
本発明は上記の点に鑑みなされたもので、様々な記録媒
体に対して最適の記録又は再生条件を迅速に設定できる
情報記録再生装置の提供にある。The present invention has been made in view of the above points, and it is an object of the present invention to provide an information recording and reproducing apparatus that can quickly set optimal recording or reproducing conditions for various recording media.
以下図面を参照して本発明の一実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明を適用できる情報記録再生装置のブロッ
ク図である。FIG. 1 is a block diagram of an information recording/reproducing apparatus to which the present invention can be applied.
ｌは情報を記録するところの光磁気ディスク媒体、２は
記録媒体ｌへのデータの記録又は再生を行う光学ピック
アップ、３は記録時に記録媒体ｌにバイアス磁界をかけ
るための電磁石、４は光学ピックアップ２により再生さ
れた情報信号を必要なレベルにまで増幅する可変利得増
幅器、５は可変利得増幅器４により増幅された再生情報
信号を１１９Ｎ、ｌＪｌ″の２つの２値化された信号に
変換するレベル比較器（コンパレーター）、６は２値化
された信号のデユーティ比を検出するデユーティ比検出
回路、７はデユーティ比検出回路６により検出されたデ
ユーティ比の変化をデジタルデータに変換する第１のＡ
／Ｄコンバーター、８は可変利得増幅器４の出力を整流
し、再生出力の振幅を検出する振幅検出器、９は前記振
幅検出器８からのアナログデータをデジタルデータに変
換する第２のＡ／Ｄコンバーター、１０はコンパレータ
ー５のしきい値レベルをアナログ値で与えるＤ／Ａコン
バーター、１１は光学ピックアップ２の内部にある半導
体レーザーを駆動するためのレーザー駆動回路、１２は
これらの各部の動作を制御するコントローラー、１３は
スライスレベルを選択するスイッチである。1 is a magneto-optical disk medium for recording information, 2 is an optical pickup for recording or reproducing data on the recording medium 1, 3 is an electromagnet for applying a bias magnetic field to the recording medium 1 during recording, and 4 is an optical pickup A variable gain amplifier 2 amplifies the reproduced information signal to a required level, and a level 5 converts the reproduced information signal amplified by the variable gain amplifier 4 into two binary signals of 119N and lJl''. A comparator, 6 is a duty ratio detection circuit that detects the duty ratio of the binarized signal, and 7 is a first comparator that converts the change in duty ratio detected by the duty ratio detection circuit 6 into digital data. A
8 is an amplitude detector that rectifies the output of the variable gain amplifier 4 and detects the amplitude of the reproduced output; 9 is a second A/D converter that converts analog data from the amplitude detector 8 into digital data; Converter, 10 is a D/A converter that provides the threshold level of the comparator 5 as an analog value, 11 is a laser drive circuit for driving the semiconductor laser inside the optical pickup 2, and 12 is for controlling the operation of each of these parts. A controller 13 is a switch for selecting a slice level.
次に第１図をもとに本装置の動作について説明する。な
お記録再生プロセスは周知の方法を用いているので、こ
こでは説明は省略する。第２図〜第４図に本発明の動作
フローチャートを示し、これに基づいて説明する。Next, the operation of this device will be explained based on FIG. Note that since the recording/reproducing process uses a well-known method, the description thereof will be omitted here. The operation flowcharts of the present invention are shown in FIGS. 2 to 4, and will be explained based on these.
まず、ディスクが不図示のターンテーブル上に装着され
た場合、ステップ５２に示す様に、増幅器４の利得を平
均的な再生レベルのディスクの設定値に、また２値化の
ためのスライスレベルは理想的信号が再生された場合の
値に、書き込み時のレーザーのピークパワーも平均的な
ディスクの値に予め設定する。また、スライスレベルの
セレクトスイッチ１３はｂ側に接続されている。ここで
、ディスク１にはディスクの最内周（あるいは最外周）
にインデックス領域を予め設定してあり、この領域には
再生信号レベルに対応するデータ領域、バイアス磁界に
対応するデータ領域、スライスレベルに対応するデータ
領域、記録ピークレーザーパワーに対応するデータ領域
が各々設定されており、またそのディスクがすでに１度
使用されているかいないかを示す情報が記録される領域
も設定されている。ステップ５３．５４においては、こ
のインデックス領域のデータを情報記録再生装置（以下
ディスクドライブ）に取り込み、そのディスクが新しい
ディスクであるかあるいは既に１度使用されたディスク
、即ちインデックスｍ域にスライスレベル、レーザーパ
ワー、バイアス強度、再生レベルに対応する各データが
すでに書かれているか否か判断する。First, when the disc is mounted on a turntable (not shown), as shown in step 52, the gain of the amplifier 4 is set to the average playback level of the disc, and the slice level for binarization is set to The peak power of the laser at the time of writing is also set in advance to the value for the average disc when an ideal signal is reproduced. Further, the slice level select switch 13 is connected to the b side. Here, disk 1 has the innermost circumference (or outermost circumference) of the disk.
An index area is set in advance, and this area includes a data area corresponding to the reproduction signal level, a data area corresponding to the bias magnetic field, a data area corresponding to the slice level, and a data area corresponding to the recording peak laser power. An area in which information indicating whether the disc has already been used or not is also set. In steps 53 and 54, the data in this index area is loaded into an information recording/reproducing device (hereinafter referred to as a disk drive), and if the disk is a new disk or a disk that has already been used, the slice level is set in the index m area. It is determined whether each data corresponding to the laser power, bias intensity, and reproduction level has already been written.
そのディスクが全くの新しいディスクモあった場合、デ
ィスク上に予め設定された領域（以下チューニング領域
）に、デユーティ比５０％の一定周波数の信号を記録す
る（ステップ５５）０次にステップ５６．５７において
、このチューニング領域に記録した信号を再生し、再生
信号のデューテ、イサイクルを測定する。ここでＷＩＪ
１図において、ｚ値化回路のしきい値レベル２１は予め
理想信号が入力されたときデユーティ５０％となるレベ
ルに設定されているため、デユーティ比検出回路６の出
力には再生信号のデユーティ比に対応した信号が得られ
る。この値をＡ／Ｄコンバーター７においてデジタル信
号に変換しコントローラー１２へ送る。If the disc is a completely new disc model, a signal of a constant frequency with a duty ratio of 50% is recorded in a preset area on the disc (hereinafter referred to as the tuning area) (step 55).Next, in step 56.57 , the signal recorded in this tuning area is reproduced, and the duty and cycle of the reproduced signal are measured. Here WIJ
In FIG. 1, the threshold level 21 of the z value conversion circuit is set in advance to a level at which the duty is 50% when the ideal signal is input, so the duty ratio of the reproduced signal is output from the duty ratio detection circuit 6. A signal corresponding to can be obtained. This value is converted into a digital signal by the A/D converter 7 and sent to the controller 12.
コントローラー内でデユーティ比５０％でないと判断し
た場合、そのデユーティ比により記録パワーが大きいか
小さいかを判断する（ステップ５８）。デユーティ比が
５０％以下のとき、即ちレーザーパワーが小さい場合は
ある一定量レーザーパワーを増し、デユーティ比が５０
％以上のとき、即ちレーザーパワーが大きすぎる場合は
ある一定量し−ザーバワーを減少させる。またここでレ
ーザーパワーが制御範囲の限界まで行ってしまったか否
かを検出し、限界でない場合、チューニング領域の信号
を消去して再び新たなレーザーパワーで同様の処理を繰
返す（ステップ５９〜６３）。If the controller determines that the duty ratio is not 50%, it is determined whether the recording power is large or small based on the duty ratio (step 58). When the duty ratio is less than 50%, that is, when the laser power is small, increase the laser power by a certain amount and the duty ratio becomes 50%.
% or more, that is, if the laser power is too large, reduce the laser power by a certain amount. Also, it is detected here whether the laser power has reached the limit of the control range, and if it is not the limit, the signal in the tuning area is erased and the same process is repeated again with a new laser power (steps 59 to 63). .
また、レーザーパワーが制御限界まで行った場合、コン
トローラー１２はまずレーザーパワーが最大か最小かを
判断し、最大の場合は記録バイアス磁界をある一定量減
少し、最小の場合は増加させ（ステップ６４〜６６）、
バイアス磁界が制御範囲内のうちは一定量ずつバイアス
磁界を変化させ、デユーティ比が５０％なるか、あるい
はバイアスが制御範囲限界になるまでチューニング領も
制御範囲の限界まで行った場合、レーザーパワー、記録
バイアス磁界ともチューニング領域に限界の値で書き込
まれる０次にスイッチ１３をａ側に接続しくステップ７
２）、信号を再生する（ステップ７３）、このときデユ
ーティ比検出器６の出力が、フィードバックされて２値
化回路５のしきい値となるが、ここでデユーティサイク
ル検出器は一種の積分器をなし、２偏性号の直流分を検
出し、その値よりデユーティ比を検出する。デユーティ
比検出器６の出力が、この閉ループを形成したときにデ
ユーティ比５０％となる様に設定する事により、入力に
歪んだ信号が入力されてもしきい値が自動的にデユーテ
ィ比５０９６の出力が得られる様に変化する（ステップ
７３）。Further, when the laser power reaches the control limit, the controller 12 first determines whether the laser power is maximum or minimum, and if it is the maximum, decreases the recording bias magnetic field by a certain amount, and if it is the minimum, increases it (step 64 ~66),
While the bias magnetic field is within the control range, the bias magnetic field is changed by a fixed amount until the duty ratio becomes 50% or the bias reaches the control range limit.If the tuning region is also reached to the control range limit, the laser power, In step 7, connect the switch 13 to the a side for the 0th order where the recording bias magnetic field and the limit value are written in the tuning area.
2) Regenerate the signal (step 73). At this time, the output of the duty cycle detector 6 is fed back and becomes the threshold of the binarization circuit 5. Here, the duty cycle detector is a kind of integral The DC component of the bipartite signal is detected, and the duty ratio is detected from that value. By setting the output of the duty ratio detector 6 to have a duty ratio of 50% when this closed loop is formed, the threshold value will automatically be set to an output with a duty ratio of 5096 even if a distorted signal is input. (Step 73).
このしきい値をＡ／Ｄコンバーター７によりコントロー
ラー１２へ取り込み（ステップ７４）、スライスレベル
として設定し、スイッチ１３をｂ側に接続する事により
（ステップ７５）、スライスレベルデータはＤ／Ａコン
バーター１０によりアナログ値に変換され２値化回路５
のしきい値入力に加えられる（ステップ７Ｂ）。By importing this threshold value into the controller 12 by the A/D converter 7 (step 74), setting it as a slice level, and connecting the switch 13 to the b side (step 75), the slice level data is transferred to the D/A converter 10. is converted into an analog value by the binarization circuit 5.
(step 7B).
次に、再生信号のデユーティ比が５０％となった後、プ
リアンプからのアナログ再生信号を振幅検出器８の内部
において、整流し平滑化し、再生信号の振幅を検出し、
Ａ／Ｄコンバーター９により振幅情報をデジタルデータ
に変換し、コントローラー１２に取り込み（ステップ７
７）、コントローラー１２は前記振幅データに基づき、
再生信号が予め設定された振幅になる様に、可変利得増
幅器４にゲインデータを送り再生信号レベルを一定に保
つ（ステップ７８）。Next, after the duty ratio of the reproduced signal reaches 50%, the analog reproduced signal from the preamplifier is rectified and smoothed within the amplitude detector 8, and the amplitude of the reproduced signal is detected.
The amplitude information is converted into digital data by the A/D converter 9, and the data is imported into the controller 12 (step 7).
7), the controller 12 based on the amplitude data,
Gain data is sent to the variable gain amplifier 4 so that the reproduced signal has a preset amplitude to keep the reproduced signal level constant (step 78).
以上、ここまでで得られた記録ピークレーザーパワー、
記録バイアス磁界強度、スライスレベルデータ、ゲイン
データの４種類のデータは、各検出動作完了時にコント
ローラー１２内のメモリに記録されており、４つのデー
タがそ４った時点で、前記ディスク上のインデックス領
域の各々の領域に記録される（ステップ７９）。Above is the recorded peak laser power obtained so far,
Four types of data, recording bias magnetic field strength, slice level data, and gain data, are recorded in the memory in the controller 12 when each detection operation is completed, and when the four data are collected, the index on the disk is recorded. The information is recorded in each area (step 79).
また、ステップ５４のニューディスク判断の動作でディ
スクがすでに１度使用された場合、即ちすでに前記４つ
のデータが書き込まれている場合、ディスクのインデッ
クス領域を再生し、レーザーパワー、バイアス磁界、ス
ライスレベル、ゲインの各データを読み込み（ステップ
８０）、コントローラー１２によって読み込んだデータ
に基づき、各値をセットしくステップ８１）、通常の動
作に備える。In addition, if the disk has already been used once in the new disk determination operation in step 54, that is, if the four data items have already been written, the index area of the disk is reproduced, and the laser power, bias magnetic field, and slice level are , gain data is read (step 80), and each value is set based on the data read by the controller 12 (step 81) to prepare for normal operation.
前記実施例においては、光磁気ディスクに関して説明し
たが、光ディスクにおいてもバイアス磁界についてのデ
ータがないのみでほぼ同様に行うことが可能である。Although the above embodiment has been described with respect to a magneto-optical disk, it is possible to perform almost the same operation on an optical disk as well, except that there is no data regarding the bias magnetic field.
以上説明した様に本発明によれば、記録媒体の記録条件
を測定して、該記録条件を記録媒体に記録することによ
り、記録媒体の特性に適応した状態で記録又は再生を迅
速に行うことができる。As explained above, according to the present invention, by measuring the recording conditions of a recording medium and recording the recording conditions on the recording medium, recording or reproduction can be quickly performed in a state adapted to the characteristics of the recording medium. I can do it.
第１図は本発明を適用できる情報記録再生装置の構成を
示すブロック図、第２図（ｊＬ）〜（ｅ）はコントロー
ラの動作フローチャート図である。FIG. 1 is a block diagram showing the configuration of an information recording/reproducing apparatus to which the present invention can be applied, and FIGS. 2(jL) to (e) are operational flowcharts of the controller.
Claims (3)
、 前記記録媒体に対する最適記録条件を測定する測定手段
と、 前記測定手段で測定した記録条件を前記記録媒体上に記
録する記録手段とを有する情報記録再生装置。(1) An apparatus for recording or reproducing information on a recording medium, comprising a measuring means for measuring the optimum recording conditions for the recording medium, and a recording means for recording the recording conditions measured by the measuring means on the recording medium. Information recording and reproducing device.
動作することを特徴とする情報記録再生装置。(2) The information recording and reproducing apparatus according to claim 1, wherein the measuring means and the recording means operate when the recording medium is used for the first time.
スライスレベル等の最適値であることを特徴とする情報
記録再生装置。(3) In claim 1, the information recording/reproducing method is characterized in that the recording conditions are optimum values of the recording power of the laser beam, the reproduction power, the recording bias magnetic field, the reproduction signal binarization slice level, etc. Device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60134832A JPH07101511B2 (en) | 1985-06-20 | 1985-06-20 | Information recording / reproducing device |
| US07/920,534 US5410527A (en) | 1985-05-14 | 1992-07-28 | Information recording/reproducing apparatus including setting optimum recording condition or reproducing condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60134832A JPH07101511B2 (en) | 1985-06-20 | 1985-06-20 | Information recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61294649A true JPS61294649A (en) | 1986-12-25 |
| JPH07101511B2 JPH07101511B2 (en) | 1995-11-01 |
Family
ID=15137502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60134832A Expired - Lifetime JPH07101511B2 (en) | 1985-05-14 | 1985-06-20 | Information recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07101511B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0233748A (en) * | 1988-07-22 | 1990-02-02 | Hitachi Ltd | Recording and erasing method for magneto-optical disk |
| JPH02292726A (en) * | 1989-04-12 | 1990-12-04 | Internatl Business Mach Corp <Ibm> | Photodisc recorder and operation thereof |
| JPH03116566A (en) * | 1989-09-29 | 1991-05-17 | Nec Corp | Method for controlling recording and reproducing of magneto-optical disk |
| JPH0479028A (en) * | 1990-07-20 | 1992-03-12 | Kenwood Corp | Method for laser output setting in optical disk recording |
| WO1994022139A1 (en) * | 1993-03-15 | 1994-09-29 | Nikon Corporation | Magnetooptic recording method, magnetooptic recording medium and magentooptic recording apparatus |
| EP1035539A1 (en) * | 1999-03-08 | 2000-09-13 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, recording and reproduction method and apparatus |
| EP1607942A1 (en) * | 2003-03-25 | 2005-12-21 | Ricoh Company, Ltd. | Optical information recording device, optical information recording medium, optical information recording method, program, and computer-readable information storage medium |
| WO2008146459A1 (en) * | 2007-05-18 | 2008-12-04 | Panasonic Corporation | Optical disc device and optical disc |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56153488A (en) * | 1980-04-28 | 1981-11-27 | Mitsubishi Electric Corp | Recording device |
| JPS59223955A (en) * | 1983-05-20 | 1984-12-15 | トムソン−セエスエフ | Calibrator for power of light applied to optical disc for data recording |
| JPS61243974A (en) * | 1985-04-19 | 1986-10-30 | Sanyo Electric Co Ltd | Information recording medium |
-
1985
- 1985-06-20 JP JP60134832A patent/JPH07101511B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56153488A (en) * | 1980-04-28 | 1981-11-27 | Mitsubishi Electric Corp | Recording device |
| JPS59223955A (en) * | 1983-05-20 | 1984-12-15 | トムソン−セエスエフ | Calibrator for power of light applied to optical disc for data recording |
| JPS61243974A (en) * | 1985-04-19 | 1986-10-30 | Sanyo Electric Co Ltd | Information recording medium |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0233748A (en) * | 1988-07-22 | 1990-02-02 | Hitachi Ltd | Recording and erasing method for magneto-optical disk |
| JP2753271B2 (en) * | 1988-07-22 | 1998-05-18 | 株式会社日立製作所 | Laser power setting method for optical disk |
| JPH02292726A (en) * | 1989-04-12 | 1990-12-04 | Internatl Business Mach Corp <Ibm> | Photodisc recorder and operation thereof |
| JPH03116566A (en) * | 1989-09-29 | 1991-05-17 | Nec Corp | Method for controlling recording and reproducing of magneto-optical disk |
| JPH0479028A (en) * | 1990-07-20 | 1992-03-12 | Kenwood Corp | Method for laser output setting in optical disk recording |
| WO1994022139A1 (en) * | 1993-03-15 | 1994-09-29 | Nikon Corporation | Magnetooptic recording method, magnetooptic recording medium and magentooptic recording apparatus |
| WO2000054261A3 (en) * | 1999-03-08 | 2001-03-29 | Matsushita Electric Ind Co Ltd | Recording drive information on recording medium |
| WO2000054261A2 (en) * | 1999-03-08 | 2000-09-14 | Matsushita Electric Industrial Co., Ltd. | Recording drive information on recording medium |
| EP1035539A1 (en) * | 1999-03-08 | 2000-09-13 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, recording and reproduction method and apparatus |
| US6552982B1 (en) | 1999-03-08 | 2003-04-22 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, information recording and reproduction method, and information recording and reproduction apparatus |
| US6940795B2 (en) | 1999-03-08 | 2005-09-06 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, information recording and reproduction method, and information recording and reproduction apparatus |
| EP1607942A1 (en) * | 2003-03-25 | 2005-12-21 | Ricoh Company, Ltd. | Optical information recording device, optical information recording medium, optical information recording method, program, and computer-readable information storage medium |
| EP1607942A4 (en) * | 2003-03-25 | 2008-08-20 | Ricoh Kk | Optical information recording device, optical information recording medium, optical information recording method, program, and computer-readable information storage medium |
| US7545717B2 (en) | 2003-03-25 | 2009-06-09 | Ricoh Company, Ltd. | Optical information recording apparatus for recording on an optical information recording medium having multiple layers |
| WO2008146459A1 (en) * | 2007-05-18 | 2008-12-04 | Panasonic Corporation | Optical disc device and optical disc |
| JPWO2008146459A1 (en) * | 2007-05-18 | 2010-08-19 | パナソニック株式会社 | Optical disc apparatus and optical disc |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07101511B2 (en) | 1995-11-01 |
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