JPH0469860A - Exchangeable disk classification discriminating method - Google Patents
Exchangeable disk classification discriminating methodInfo
- Publication number
- JPH0469860A JPH0469860A JP18304190A JP18304190A JPH0469860A JP H0469860 A JPH0469860 A JP H0469860A JP 18304190 A JP18304190 A JP 18304190A JP 18304190 A JP18304190 A JP 18304190A JP H0469860 A JPH0469860 A JP H0469860A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- shutter
- pattern
- case
- type
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000012850 discrimination method Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は媒体可換形のディスクおよびディスク装置に関
し、特に、ディスクの種類判別方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a medium-replaceable disk and a disk device, and particularly to a method for determining the type of disk.
従来、この種のディスクの種類判別方法では、例えば、
９０ｍｍフロッピーディスクのようにディスクケースに
設けられた窓の有無を検出したり、２００ｍｍフロッピ
ーディスクのようにインデックス孔位置の違いを検出す
る方法が用いられている。Conventionally, in this type of disc type determination method, for example,
A method is used to detect the presence or absence of a window provided in a disk case as in the case of a 90 mm floppy disk, or to detect a difference in index hole position as in the case of a 200 mm floppy disk.
上述したように従来のディスクの種類判別方法では、デ
ィスクの種類が増加するに従い、窓や孔の位置を変更す
る必要があり、また、これによリ、検出器の増設を行う
必要があるため、多くの種類を判別することは、主に、
ディスクの４法の制限から困難である。As mentioned above, in the conventional disc type discrimination method, as the number of disc types increases, it is necessary to change the positions of windows and holes, and this also requires the installation of additional detectors. , distinguishing between the many types is mainly done by
This is difficult due to the limitations of the four disc methods.
本発明の可換性ディスク種類判別方法は、可換１″をイ
］するディスクとディスク装置におい′Ｃ。The method of determining the type of a replaceable disc according to the present invention is applicable to a replaceable disc and a disc device.
ディスクのケースまなはシャッタにケースまたはシャッ
タとは反射率の異なる物質をディスクの記録密度や特性
智の種類に応１；た特定のパターンで付着させ、このパ
ターンをディスク装置において、光センサにより検出し
ている。A material with a different reflectance from that of the case or shutter is attached to the disk case or shutter in a specific pattern depending on the recording density and type of characteristics of the disk, and this pattern is detected by an optical sensor in the disk device. are doing.
また、反射率の異なる物質の代りに絶縁物をディスクの
ケースまたはシャッタにディスクの記録密度や特性等の
種類に応じた特定のパターンで何名させ、このパターン
をディスク装置において、導通により検出している。In addition, instead of materials with different reflectances, insulators are used in the case or shutter of the disk in a specific pattern depending on the recording density and characteristics of the disk, and this pattern is detected by conduction in the disk device. ing.
次に、本発明について図面を参照して説明゛する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例のディスク種類判別方法を示
す図、第２図は特定パターンの・実施例を示す図である
。FIG. 1 is a diagram showing a disc type discrimination method according to an embodiment of the present invention, and FIG. 2 is a diagram showing an embodiment of a specific pattern.
第１図はディスク装置にディスクが装着された状態時を
示す（ディスク装置の検出部以外の機構部分は図示せず
）。FIG. 1 shows a state in which a disk is installed in the disk device (mechanical parts other than the detection section of the disk device are not shown).
ここで、ディスク１が装着状態にある時、シャッタ２は
開かれた状態にな・）でいる。このシャッタ２の下面に
は第２図に示されるｊ、３なシャッタとは反射率の異な
る物質のパターンが付着している。Here, when the disc 1 is in the loaded state, the shutter 2 is in the open state. A pattern of material having a different reflectance from that of the shutter 2 shown in FIG. 2 is attached to the lower surface of the shutter 2.
次に、ディスク装置に設けられた光センサ出力１０はシ
、ヤッタ上の反射率に応じ、明部に対応する時は高電位
を、暗部に対応する時は低電位を出力する。このような
光センサをパターン位置に対応さ（、ｎ個並べておくこ
とにより２″通りのパターン、即ち２″種類のディスク
の判別を行う。Next, the optical sensor output 10 provided in the disk device outputs a high potential when it corresponds to a bright area, and a low potential when it corresponds to a dark area, depending on the reflectance on the surface. By arranging (n) such optical sensors corresponding to the pattern positions, 2'' patterns, that is, 2'' types of discs can be discriminated.
第３図は本発明の他の実施例のディスク種類判別方法を
示す図である。FIG. 3 is a diagram showing a disc type discrimination method according to another embodiment of the present invention.
第３図において、導電性の金属シャッタに絶縁物を、例
えば、第２図のようなパターンで付着しである。このと
き、パターン位置に応じた導通検出器を並べておき、１
１個所の導通を検出することにより、２″通りのパター
ン、即ち、２１種類のディスクの判別を行う。In FIG. 3, an insulator is attached to a conductive metal shutter in a pattern as shown in FIG. 2, for example. At this time, the continuity detectors are arranged according to the pattern position, and 1
By detecting continuity at one location, 2'' patterns, that is, 21 types of disks can be discriminated.
以上説明したように本発明によれば、ディスクのケース
またはシャッタ］、に付着させた物質のパターンにより
ディスクの種類を判別するため、多種類のディスクの判
別が容易、かつ、確実に行える。As described above, according to the present invention, the type of disc is determined based on the pattern of the substance attached to the case or shutter of the disc, so that it is possible to easily and reliably identify many types of discs.
これにより、ディスク装置の書込電流の選択、リード・
フィルタ特性の選択、ヘッド位置決め方法の選択が確実
に行え、また、ホストに対して種別判定紡果を知らせる
ことにより、書込み、涜出しの制御方法の選択も確実に
行えるため、信頼性の高いディスク装置を提供できると
いう効果があ方法を示す図、第２図は特定パターンの−
・実施例を示す図、第３図は本発明の他の実施例のディ
スク種類判別方法を示す図である。This allows you to select the write current of the disk device, and
The selection of filter characteristics and head positioning method can be performed reliably, and by notifying the host of the results of type determination, the control method for writing and deleting can also be reliably selected, resulting in highly reliable disks. Figure 2 is a diagram illustrating a method that is effective in providing a device for a specific pattern of -
・Diagram showing an embodiment: FIG. 3 is a diagram showing a disc type discrimination method according to another embodiment of the present invention.
１・・・ディスク、２・・・シャッタ、］０・・・光セ
ンサ出力、２０〜２３・・・導通検出器出力。1...Disc, 2...Shutter, ]0... Optical sensor output, 20-23... Continuity detector output.
Claims (1)
タとは反射率の異なる物質をディスクの記録密度や特性
等の種類に応じた特定のパターンで付着させ、 前記パターンをディスク装置において光センサにより検
出することを特徴とする可換性ディスク種類判別方法。 ２、請求項１記載の可逆性ディスク種類判別方法におい
て、反射率の異なる物質の代りに絶縁物をディスクのケ
ースまたはシャッタにディスクの記録密度や特性等の種
類に応じた特定のパターンで付着させ、 前記パターンをディスク装置において導通により検出す
ることを特徴とする可換性ディスク種類判別方法。[Claims] 1. In a replaceable disk and a disk device, a material having a different reflectance from that of the case or shutter is applied to the case or shutter of the disk according to the recording density and characteristics of the disk. 1. A method for determining the type of a replaceable disk, characterized in that the pattern is attached in a pattern, and the pattern is detected by an optical sensor in a disk device. 2. In the reversible disk type determination method according to claim 1, an insulating material is attached to the case or shutter of the disk in a specific pattern depending on the type of disk, such as the recording density and characteristics, instead of the substance having a different reflectance. . A method for determining the type of a replaceable disk, characterized in that the pattern is detected by conduction in a disk device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18304190A JPH0469860A (en) | 1990-07-11 | 1990-07-11 | Exchangeable disk classification discriminating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18304190A JPH0469860A (en) | 1990-07-11 | 1990-07-11 | Exchangeable disk classification discriminating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0469860A true JPH0469860A (en) | 1992-03-05 |
Family
ID=16128706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18304190A Pending JPH0469860A (en) | 1990-07-11 | 1990-07-11 | Exchangeable disk classification discriminating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0469860A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5513162A (en) * | 1993-03-09 | 1996-04-30 | Sony Corporation | Recording apparatus having a function to prevent recording of a signal into a specific area of a recording medium |
| US5548571A (en) * | 1994-10-03 | 1996-08-20 | Eastman Kodak Company | Method and apparatus for identifying data storage disks |
| US5903538A (en) * | 1994-12-14 | 1999-05-11 | Matsushita Electric Industrial Co., Ltd. | Automatic disk change apparatus and disk tray for the apparatus |
| US8072647B2 (en) | 2007-08-17 | 2011-12-06 | Mitsubishi Electric Corporation | Color conversion apparatus and method |
-
1990
- 1990-07-11 JP JP18304190A patent/JPH0469860A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5513162A (en) * | 1993-03-09 | 1996-04-30 | Sony Corporation | Recording apparatus having a function to prevent recording of a signal into a specific area of a recording medium |
| US5548571A (en) * | 1994-10-03 | 1996-08-20 | Eastman Kodak Company | Method and apparatus for identifying data storage disks |
| US5903538A (en) * | 1994-12-14 | 1999-05-11 | Matsushita Electric Industrial Co., Ltd. | Automatic disk change apparatus and disk tray for the apparatus |
| US8072647B2 (en) | 2007-08-17 | 2011-12-06 | Mitsubishi Electric Corporation | Color conversion apparatus and method |
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