JPH0680542B2 - Plate recording medium - Google Patents
Plate recording mediumInfo
- Publication number
- JPH0680542B2 JPH0680542B2 JP59091030A JP9103084A JPH0680542B2 JP H0680542 B2 JPH0680542 B2 JP H0680542B2 JP 59091030 A JP59091030 A JP 59091030A JP 9103084 A JP9103084 A JP 9103084A JP H0680542 B2 JPH0680542 B2 JP H0680542B2
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- plate
- sector
- area
- shaped recording
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000003550 marker Substances 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 20
- 230000007547 defect Effects 0.000 description 8
- 238000007689 inspection Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
Description
【発明の詳細な説明】 〔技術分野〕 本発明は光デイスク、カード状光記録媒体等の板状記録
媒体に係り、特に性能検査の能率向上を図りうる板状記
録媒体に関する。Description: TECHNICAL FIELD The present invention relates to a plate-shaped recording medium such as an optical disk or a card-shaped optical recording medium, and more particularly to a plate-shaped recording medium capable of improving the efficiency of performance inspection.
従来の板状記録媒体、例えば光デイスクは、情報の記録
領域を構成するプリグループと呼ばれる案内溝と、プリ
グループの一部に形成された番号データ、すなわち記録
される情報を分類する領域であるセクタ番地を表わすセ
クタ番号を示す番号データとを有している。なお、セク
タ番地は例えば１トラツクを32分割、64分割などの所定
の数に等分割することにより形成されている。A conventional plate-shaped recording medium, for example, an optical disk, is a guide groove called a pregroup that constitutes an information recording area, and number data formed in a part of the pregroup, that is, an area for classifying recorded information. Number data indicating a sector number indicating a sector address. The sector address is formed by equally dividing one track into a predetermined number such as 32 or 64.
ところで、一般に光ディスクの製造過程においては、完
成製品とする前にドロツプアウト等情報の記録に際して
誤りを生じさせる欠陥があるかどうかの性能検査がおこ
なわれるが、このような性能検査において欠陥が確認さ
れた場合には、当該欠陥を解消するためにその位置を明
示することが必要になる。このような光デイスクの性能
検査は通常、デイスクドライブに光デイスクを装着して
当該デイスクドライブを駆動し、これによつて光デイス
クに設けられたセクタ番号を読出して欠陥位置を調べる
作業とともに、光デイスクの表面を例えば顕微鏡等を介
して目視にて確認し、欠陥がある場合にはその位置を明
示するマークを当該光デイスクに付加する、いわゆる目
視検査をおこなつており、デイスクドライブによる検査
と目視検査の双方を併せて欠陥を解消するようにしてい
る。By the way, generally, in the manufacturing process of an optical disc, a performance inspection is carried out before recording a finished product to see if there is a defect that causes an error in recording information such as dropout. However, such a defect was confirmed in the performance inspection. In that case, it is necessary to clearly indicate the position in order to eliminate the defect. Such optical disk performance inspection is usually performed by mounting the optical disk on the disk drive, driving the disk drive, and reading the sector number provided on the optical disk to check the defect position. The surface of the disk is visually confirmed, for example, through a microscope, and if there is a defect, a mark that clearly indicates the position is added to the optical disk, so-called visual inspection is performed. Both visual inspections are combined to eliminate defects.
しかし、光デイスク上のセクタ番号を示す番号データ
は、一定の幅を有する直線的形状として目視できるもの
の、その直線的形状が具体的にどのセクタ番号を示して
いるかは目視によつて判別することができず、すなわち
光デイスク上に付加したマークがどのセクタ番地に含ま
れるものか目視によつて確認することはできず、したが
つて、マークを付加した後に当該デイスクをデイスクド
ライブに装着して、マークが付加されたセクタ番地をセ
クタ番号の検出によつて調べるという面倒な作業が必要
となり、それ故、性能検査の能率の向上が見込めない不
具合があつた。However, although the number data indicating the sector number on the optical disk can be visually recognized as a linear shape having a certain width, it is necessary to visually determine which sector number the linear shape specifically indicates. That is, it is not possible to visually check which sector address contains the mark added on the optical disk.Therefore, after adding the mark, attach the disk to the disk drive. However, the troublesome work of checking the sector address to which the mark is added by detecting the sector number is required, and therefore, there is a problem that the efficiency of the performance inspection cannot be expected to improve.
本発明は、このような従来技術における実情に鑑みてな
されたもので、その目的は、セクタ番号を目視によつて
確認することのできる板状記録媒体を提供することにあ
る。The present invention has been made in view of such circumstances in the prior art, and an object thereof is to provide a plate-shaped recording medium capable of visually confirming a sector number.
この目的を達成するために本発明は、予めトラックが形
成され、複数のセクタに分割された情報記録領域を有す
る板状記録媒体において、 上記情報記録領域内の各セクタの境界となる領域に、上
記各セクタに対応して、セクタ番号を記憶したセクタ情
報領域を、目視可能なように形成し、 上記情報記録領域外の領域で、上記セクタ情報領域のう
ちの特定のセクタ番号のものに対応する位置に、基準位
置標識を目視可能なように形成し、 上記セクタ情報領域と基準位置標識とにより、欠陥のあ
るセクタの位置を目視により確認できるようにしたこと
を特徴とするものである。In order to achieve this object, the present invention provides a plate-shaped recording medium having a track formed in advance and having an information recording area divided into a plurality of sectors, in an area serving as a boundary of each sector in the information recording area, Corresponding to each sector, a sector information area storing a sector number is formed so as to be visible, and an area outside the information recording area corresponds to a specific sector number of the sector information area. It is characterized in that a reference position mark is formed so as to be visible at a desired position, and the position of the defective sector can be visually confirmed by the sector information area and the reference position mark.
以下、本発明の板状記録媒体を図に基づいて説明する。 Hereinafter, the plate recording medium of the present invention will be described with reference to the drawings.
第１図は本発明の第１の実施例を示す平面図である。こ
の図において、１は板状記録媒体、例えば光デイスク
で、その表面には記録領域を構成するプリグルーブ２が
設けられている。このプリグルーブ２には当該光デイス
ク１の径方向に沿つて、セクタ番号が０番の番号データ
3a0,1番の番号データ3a1,2番の番号データ3a2,63番の番
号データ3a63等の番号データが設けられており、例えば
各番号に対応して記録領域全体が64のセクタ番号に分割
されている。なお、番号データ3a0,3a1,3a2,……3a63は
多数の短線が当該デイスク１の径方向に沿つて配列され
ることによつて形成され、それぞれ全体として直線形状
として目視することができる。そして上記短線のうちの
１本は、例えばレーザ光により穿孔された直径数μｍ〜
２μｍ程度の球状凹部が数100集合することによつて形
成されている。5,6はプリグループ２が設けられている
記録領域の外部に、かつセクタ番号が０番の番号データ
3a0の位置に関連してそれぞれ設けた標識で、標識５は
プリグループ２の外周側に、標識６はプリグループ２の
内周側に配置してあり、番号データ3a0に類似した形
状、すなわち１つの短線の長さを番号データ3a0,3a1,3a
2,……3a63における短線の長さとほぼ等しくしてあり、
例えば1000トラツクにわたつて形成してある。このよう
な標識5,6は例えば番号データ3a0,3a1,3a2,……3a63の
形成時に、当該番号データ3a0,3a1,3a2,……3a63の形成
に用いたレーザ光により一括して作成することができ
る。FIG. 1 is a plan view showing a first embodiment of the present invention. In the figure, reference numeral 1 is a plate-shaped recording medium, for example, an optical disk, on the surface of which a pre-groove 2 which constitutes a recording area is provided. This pre-groove 2 has number data with sector number 0 along the radial direction of the optical disc 1.
3a 0 , No. 1 number data 3a 1 , No. 2 number data 3a 2 , No. 63 number data 3a Number data such as 63 is provided, for example, the entire recording area corresponds to each number of 64 sectors It is divided into numbers. Note that the number data 3a 0 , 3a 1 , 3a 2 , ... 3a 63 is formed by arranging a number of short lines along the radial direction of the disk 1, and each should be viewed as a linear shape as a whole. You can And, one of the short lines is, for example, several μm in diameter perforated by laser light.
It is formed by assembling several hundreds of spherical recesses of about 2 μm. 5 and 6 are number data with sector number 0 outside the recording area where pregroup 2 is provided.
Labeled respectively provided in relation to the position of 3a 0, labeled 5 on the outer peripheral side of the pregroove 2, labeled 6 Yes disposed on the inner peripheral side of the pregroove 2, the shape similar to number data 3a 0, That is, the length of one short line is used as the number data 3a 0 , 3a 1 , 3a.
2 , ... 3a 63, which is almost equal to the length of the short line,
For example, it is formed over 1000 tracks. Such markers 5 and 6 are, for example, lasers used for forming the number data 3a 0 , 3a 1 , 3a 2 , ... 3a 63 when forming the number data 3a 0 , 3a 1 , 3a 2 , ... 3a 63. It can be created collectively by light.
このように構成してある第１の実施例にあつては、当該
光デイスク１をデイスクドライブに装着し、デイスクド
ライブを駆動することにより、番号データ3a0,3a1,3a2,
……3a63等のセクタ番号を読出し、該当するセクタ番地
内に含まれるドロツプアウト等を検出することができる
とともに、この光デイスク１の目視検査に際しては、番
号データ3a0,3a1,3a2,……3a63等の直線形状を目視可能
なこと、および標識5,6によつてセクタ番号が０番の番
号データ3a0を目視によつて特定できることから、当該
光デイスク１の記録領域内に存在する欠陥等がどのセク
タ番地に含まれるものであるかは、基準位置である番号
データ3a0から順に数えることにより目視によつて確認
することができ、したがつてこの場合、前述した欠陥位
置を示すマークを付加した後はデイスクドライブに当該
光デイスク１を装着し、デイスクドライブを駆動するこ
とを要しない。In the first embodiment configured as described above, the optical disk 1 is mounted on the disk drive, and the disk drive is driven, whereby the number data 3a 0 , 3a 1 , 3a 2 ,
...... The sector number such as 3a 63 can be read to detect the dropout included in the corresponding sector address, and the number data 3a 0 , 3a 1 , 3a 2 , ...... Since the linear shape such as 3a 63 is visually observable, and the number data 3a 0 with the sector number 0 is visually identifiable by the markers 5 and 6, the recording area of the optical disc 1 is concerned. It can be visually confirmed by counting from the reference position number data 3a 0 which sector address an existing defect, etc. is included in. It is not necessary to mount the optical disk 1 on the disk drive after adding the mark indicating "," and drive the disk drive.
また、標識5,6の作成を番号データ3a0,3a1,3a2,……3a
63等の形成時に共に作成できることから、この標識5,6
の作成作業が簡単である。In addition, the creation of the signs 5 and 6 is performed by the number data 3a 0 , 3a 1 , 3a 2 , ... 3a
This sign 5,6 can be created together with 63 when it is formed.
Is easy to create.
第２図は本発明の第２の実施例を示す要部平面図であ
る。この第２の実施例にあつては、セクタ番号が０番の
番号データ3a0の位置に関連させてプリグループ２の外
周側に、当該番号データ3a0を構成する短線の長さより
も大きい長さを有する短線を光デイスク１の径方向に配
列してなる標識７を設けてある。このように構成した実
施例にあつては標識７が大きいことから、番号データ3a
0がセクタ番号が０番であることがきわめて容易に判別
できる。FIG. 2 is a plan view of an essential part showing a second embodiment of the present invention. In the second embodiment, a length larger than the length of the short line constituting the number data 3a 0 is provided on the outer peripheral side of the pregroup 2 in association with the position of the number data 3a 0 having the sector number 0. There is provided a marker 7 formed by arranging short lines having a length in the radial direction of the optical disc 1. In the embodiment constructed in this manner, the number 7a is large because the sign 7 is large.
It can be very easily determined that 0 is the sector number.
なお、上記第1,第２の実施例では標識5,6,7を番号デー
タ3a0,3a1,3a2,……3a63等に類似した形状、すなわち短
線を光デイスク１の径方向に集合させた直線形状に形成
してあるが、本発明はこれに限られず、これらの標識5,
6,7を文字、符号、あるいは○，□，×等の形状によつ
て表わすようにしてもよい。In the first and second embodiments described above, the markers 5, 6, 7 have a shape similar to the number data 3a 0 , 3a 1 , 3a 2 , ... 3a 63 , that is, a short line in the radial direction of the optical disk 1. Although formed into a straight line shape that is assembled, the present invention is not limited to this, these markers 5,
The characters 6 and 7 may be represented by characters, symbols, or shapes such as ○, □, and ×.
また、上記第1,第２の実施例ではセクタ番号が０番の番
号データ3a0の位置にのみ標識5,6,7を設けてあるが、本
発明はこれに限られず、例えば64分割中の中間に位置す
るセクタ番号32番の番号データ3a32位置にも設けてもよ
く、また各セクタ番号ごとに目視可能な、かつ互いに判
別可能な標識を設けるようにしてもよい。Further, in the first and second embodiments, the markers 5, 6, and 7 are provided only at the position of the number data 3a 0 with the sector number 0, but the present invention is not limited to this, and, for example, during 64 divisions. It may be provided at the position of the number data 3a 32 of the sector number 32, which is located in the middle of the above, or may be provided with a visually distinguishable mark for each sector number.
また、上記第1,第２の実施例では板状記録媒体として光
デイスク１を挙げたが、本発明はこれに限られず、番号
データ3a0等の形状が目視できるものであれば適用で
き、例えば全体が角形に形成されたカード状光記録媒体
等に適用することもできる。Further, although the optical disc 1 is mentioned as the plate-shaped recording medium in the first and second embodiments, the present invention is not limited to this, and can be applied as long as the shape such as the number data 3a 0 can be visually confirmed. For example, it can also be applied to a card-shaped optical recording medium or the like which is formed in a rectangular shape as a whole.
本発明は以上のように、記録領域の外部に、かつ番号デ
ータ領域の位置に関連させて番号データ領域確認用の基
準標識を目視可能に設けたから、記録領域に含まれる欠
陥の検出が容易になり、従来に比べて性能検査の能率が
向上する効果がある。As described above, according to the present invention, the reference mark for confirming the number data area is provided outside the recording area and in association with the position of the number data area so that the defect contained in the recording area can be easily detected. Therefore, there is an effect that the efficiency of the performance inspection is improved as compared with the conventional case.
第１図は本発明の板状記録媒体の第１の実施例を示す平
面図、第２図は本発明の第２の実施例を示す要部平面図
である。 １……光デイスク（板状記録媒体）、２……プリグルー
ブ、3a0,3a1,3a2,3a63……番号データ、5,6,7……標
識。FIG. 1 is a plan view showing a first embodiment of a plate-shaped recording medium of the present invention, and FIG. 2 is a main part plan view showing a second embodiment of the present invention. 1 ...... optical discs (plate-like recording medium), 2 ...... pregroove, 3a 0, 3a 1, 3a 2, 3a 63 ...... number data, 5,6,7 ...... label.
Claims (9)
分割された情報記録領域を有する板状記録媒体におい
て、 上記情報記録領域内の各セクタの境界となる領域に、上
記各セクタに対応して、セクタ番号を記録したセクタ情
報領域を、目視可能なように形成し、 上記情報記録領域外の領域で、上記セクタ情報領域のう
ちの特定のセクタ番号のものに対応する位置に、基準位
置標識を目視可能なように形成し、 上記セクタ情報領域と基準位置標識とにより、欠陥のあ
るセクタの位置を目視により確認できるようにしたこと
を特徴とする板状記録媒体。1. In a plate-shaped recording medium having a track formed in advance and having an information recording area divided into a plurality of sectors, an area serving as a boundary of each sector in the information recording area corresponds to each sector. Then, a sector information area in which the sector number is recorded is formed so as to be visible, and a reference position is set at a position outside the information recording area, which corresponds to a specific sector number of the sector information area. A plate-shaped recording medium characterized in that a mark is formed so as to be visible, and the position of a defective sector can be visually confirmed by the sector information area and the reference position mark.
を特徴とする特許請求の範囲第１項記載の板状記録媒
体。2. The plate-shaped recording medium according to claim 1, wherein the tracks are pregrooves.
成されていることを特徴とする特許請求の範囲第１項記
載の板状記録媒体。3. The plate-shaped recording medium according to claim 1, wherein the information recording area is formed in a pre-groove portion.
あり、上記基準位置標識は上記情報記録領域外の領域の
内周側及び外周側の少なくとも一方に形成されているこ
とを特徴とする特許請求の範囲第１項記載の板状記録媒
体。4. The plate-shaped recording medium is a disc-shaped recording medium, and the reference position marker is formed on at least one of an inner peripheral side and an outer peripheral side of an area outside the information recording area. The plate-shaped recording medium according to claim 1.
れていることを特徴とする特許請求の範囲第４項記載の
板状記録媒体。5. The plate-shaped recording medium according to claim 4, wherein a pre-groove is formed on the reference position mark.
したセクタ情報領域に対応する位置に形成されているこ
とを特徴とする特許請求の範囲第４項記載の板状記録媒
体。6. The plate recording medium according to claim 4, wherein the reference position mark is formed at a position corresponding to a sector information area in which a sector number 0 is recorded.
ることを特徴とする特許請求の範囲第１項記載の板状記
録媒体。7. The plate-shaped recording medium according to claim 1, wherein the reference position marker comprises a plurality of concave and convex portions.
タを構成する短線よりも長い線を配列して構成されてい
ることを特徴とする特許請求の範囲第１項記載の板状記
録媒体。8. The plate-shaped recording medium according to claim 1, wherein the reference position mark is formed by arranging a line longer than a short line forming the sector number data.
任意の形状の記号から選ばれた少なくとも１種からなる
ことを特徴とする特許請求の範囲第１項記載の板状記録
媒体。9. The plate-shaped recording medium according to claim 1, wherein the reference position mark is made of at least one selected from a character, a code, and a symbol having an arbitrary shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59091030A JPH0680542B2 (en) | 1984-05-09 | 1984-05-09 | Plate recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59091030A JPH0680542B2 (en) | 1984-05-09 | 1984-05-09 | Plate recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60236134A JPS60236134A (en) | 1985-11-22 |
| JPH0680542B2 true JPH0680542B2 (en) | 1994-10-12 |
Family
ID=14015119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59091030A Expired - Lifetime JPH0680542B2 (en) | 1984-05-09 | 1984-05-09 | Plate recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0680542B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2702723B2 (en) * | 1987-11-06 | 1998-01-26 | シャープ株式会社 | Method for manufacturing optical memory device |
| JPH0439822U (en) * | 1990-07-27 | 1992-04-03 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57172550A (en) * | 1981-04-16 | 1982-10-23 | Matsushita Electric Ind Co Ltd | Optical disk |
| JPS57103136A (en) * | 1980-12-17 | 1982-06-26 | Matsushita Electric Ind Co Ltd | Optical disk and optical disk device |
| JPS57122032U (en) * | 1981-01-20 | 1982-07-29 | ||
| JPS58211343A (en) * | 1982-05-31 | 1983-12-08 | Sony Corp | Disk recording medium |
| JPS5928991U (en) * | 1982-08-18 | 1984-02-23 | 進興電器株式会社 | socket |
| JPS5994245A (en) * | 1982-11-22 | 1984-05-30 | Nec Corp | Optical disk device |
-
1984
- 1984-05-09 JP JP59091030A patent/JPH0680542B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60236134A (en) | 1985-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |