JP2001126336A5 - Magneto-optical disk and recording and / or playback device - Google Patents
Magneto-optical disk and recording and / or playback device Download PDFInfo
- Publication number
- JP2001126336A5 JP2001126336A5 JP1999303135A JP30313599A JP2001126336A5 JP 2001126336 A5 JP2001126336 A5 JP 2001126336A5 JP 1999303135 A JP1999303135 A JP 1999303135A JP 30313599 A JP30313599 A JP 30313599A JP 2001126336 A5 JP2001126336 A5 JP 2001126336A5
- Authority
- JP
- Japan
- Prior art keywords
- magneto
- optical disk
- recording
- area
- information 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.)
- Pending
Links
- 230000002093 peripheral Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
Description
【特許請求の範囲】
【請求項１】
環状の情報記録領域と、上記情報記録領域の内周側に設けられ記録及び／又は再生装置側の保持手段により保持されるための保持用領域とを備え、
記録及び／又は再生装置側の磁気ヘッドを上記情報記録領域に対して押圧する押圧力をｆ（ｇｆ）、外径をｄ１（ｍｍ）、上記保持用領域の外径をｄ２（ｍｍ）、ディスク基板の厚さをｔ（ｍｍ）とし、
ｆ≦６４３９×ｔ３／（ｄ１−ｄ２）２
が成立するように形成されたことを特徴とする光磁気ディスク。
【請求項２】
環状の情報記録領域と、上記情報記録領域の内周側に設けられ記録及び／又は再生装置側の保持手段により保持されるための保持用領域とを有する光磁気ディスクに対して情報を記録及び／又は再生する記録及び／又は再生装置において、
上記光磁気ディスクの上記情報記録領域に対して磁気ヘッドを押圧する押圧力をｆ（ｇｆ）、外径をｄ１（ｍｍ）、上記保持用領域の外径をｄ２（ｍｍ）、ディスク基板の厚さをｔ（ｍｍ）とし、
ｆ≦６４３９×ｔ３／（ｄ１−ｄ２）２
が成立するように形成された光磁気ディスクを情報記録媒体として用いることを特徴とする記録及び／又は再生装置。
[Claims]
[Claim 1]
It is provided with an annular information recording area and a holding area provided on the inner peripheral side of the information recording area and held by a holding means on the recording and / or reproducing device side.
The pressing force that presses the magnetic head on the recording and / or playback device side against the information recording area is f (gf), the outer diameter is d 1 (mm), and the outer diameter of the holding area is d 2 (mm). , The thickness of the disk substrate is t (mm).
f ≦ 6439 × t 3 / (d 1 − d 2 ) 2
A magneto-optical disk characterized in that it is formed so as to hold.
2.
Information is recorded and recorded on a magneto-optical disk having an annular information recording area and a holding area provided on the inner peripheral side of the information recording area and held by a holding means on the recording and / or reproducing device side. / Or in the recording and / or playback device to be played back
The pressing force for pressing the magnetic head against the information recording area of the magneto-optical disk is f (gf), the outer diameter is d 1 (mm), the outer diameter of the holding area is d 2 (mm), and the disk substrate. Let t (mm) be the thickness of
f ≦ 6439 × t 3 / (d 1 − d 2 ) 2
A recording and / or reproducing device, characterized in that a magneto-optical disk formed so as to hold the above is used as an information recording medium.
【０００１】
【発明の属する技術分野】
本発明は、情報が記録再生される光磁気ディスク及びこの光磁気ディスクに対して情報の記録及び／又は再生を行う記録及び／又は再生装置に関する。
[0001]
[Technical field to which the invention belongs]
The present invention relates to a magneto-optical disk on which information is recorded and reproduced, and a recording and / or reproduction device for recording and / or reproducing information on the magneto-optical disk.
そこで、本発明は、外径の小径化及び薄型化を図り、記録再生時に情報記録領域に生じる傾きを許容量以下に抑制することを可能とする光磁気ディスク及び光磁気ディスクに対する情報の記録再生動作の信頼性を向上することができる記録及び／又は再生装置を提供することを目的とする。 Therefore, the present invention aims to reduce the outer diameter and thickness of the outer diameter, and to record and reproduce information on a magneto-optical disk and a magneto-optical disk, which makes it possible to suppress the inclination generated in the information recording area during recording / reproduction to an allowable amount or less. It is an object of the present invention to provide a recording and / or playback device capable of improving the reliability of operation.
【００１３】
【課題を解決するための手段】
上述した目的を達成するため、本発明に係る光磁気ディスクは、環状の情報記録領域と、上記情報記録領域の内周側に設けられ記録及び／又は再生装置側の保持手段により保持されるための保持用領域とを備える。この光磁気ディスクは、記録及び／又は再生装置側の磁気ヘッドを情報記録領域に対して押圧する押圧力をｆ（ｇｆ）、外径をｄ１（ｍｍ）、上記保持用領域の外径をｄ２（ｍｍ）、ディスク基板の厚さをｔ（ｍｍ）とし、
ｆ≦６４３９×ｔ３／（ｄ１−ｄ２）２
が成立するように形成される。
0013
[Means for solving problems]
In order to achieve the above-mentioned object, the magneto-optical disk according to the present invention is held by an annular information recording area and a holding means provided on the inner peripheral side of the information recording area and on the recording and / or reproducing device side. It is provided with a holding area for. In this magneto-optical disk, the pressing force for pressing the magnetic head on the recording and / or reproducing device side against the information recording area is f (gf), the outer diameter is d 1 (mm), and the outer diameter of the holding area is set. Let d 2 (mm) and the thickness of the disk substrate be t (mm).
f ≦ 6439 × t 3 / (d 1 − d 2 ) 2
Is formed so as to hold.
また、本発明に係る記録及び／又は再生装置は、環状の情報記録領域と、上記情報記録領域の内周側に設けられ記録及び／又は再生装置側の保持手段により保持されるための保持用領域とを有する光磁気ディスクに対して情報を記録及び／又は再生するように構成される。この記録及び／又は再生装置は、光磁気ディスクの情報記録領域に対して磁気ヘッドを押圧する押圧力をｆ（ｇｆ）、外径をｄ１（ｍｍ）、上記保持用領域の外径をｄ２（ｍｍ）、ディスク基板の厚さをｔ（ｍｍ）とし、
ｆ≦６４３９×ｔ３／（ｄ１−ｄ２）２
が成立するように形成された光磁気ディスクを情報記録媒体として用いる。
Further, the recording and / or reproducing device according to the present invention is for holding by a ring-shaped information recording area and a holding means provided on the inner peripheral side of the information recording area and on the recording and / or reproducing device side. It is configured to record and / or reproduce information on a magneto-optical disk having an area. In this recording / / or reproducing device, the pressing force for pressing the magnetic head against the information recording area of the magneto-optical disk is f (gf), the outer diameter is d 1 (mm), and the outer diameter of the holding area is d. 2 (mm), the thickness of the disk substrate is t (mm),
f ≦ 6439 × t 3 / (d 1 − d 2 ) 2
A magneto-optical disk formed so as to hold the above is used as an information recording medium.
また、本発明に係る記録及び／又は再生装置によれば、光磁気ディスクの記録又は再生時に、光磁気ディスクの情報記録領域に押圧される磁気ヘッドにより、光磁気ディスクに発生する傾きを許容量以下に抑制することが可能とされる。したがって、この記録及び／又は再生装置によれば、光磁気ディスクに対する情報の記録再生動作の信頼性を向上することができる。 Further, according to the recording and / or reproducing device according to the present invention, the allowable amount of tilt generated in the magneto-optical disk by the magnetic head pressed against the information recording area of the magneto-optical disk during recording or reproduction of the magneto-optical disk. It is possible to suppress the following. Therefore, according to this recording / / or reproducing device, the reliability of the information recording / reproducing operation for the magneto-optical disk can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30313599A JP2001126336A (en) | 1999-10-25 | 1999-10-25 | Magneto-optical disk and recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30313599A JP2001126336A (en) | 1999-10-25 | 1999-10-25 | Magneto-optical disk and recording and reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001126336A JP2001126336A (en) | 2001-05-11 |
| JP2001126336A5 true JP2001126336A5 (en) | 2006-04-27 |
Family
ID=17917310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30313599A Pending JP2001126336A (en) | 1999-10-25 | 1999-10-25 | Magneto-optical disk and recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001126336A (en) |
-
1999
- 1999-10-25 JP JP30313599A patent/JP2001126336A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2360440A1 (en) | Recording medium, data recording method and apparatus, data reproducing method and apparatus, and copying control method | |
| CA2173701A1 (en) | A recording medium on which attribute information on the playback data is recorded together with the playback data and a system for appropriately reproducing the playback data using the attribute information | |
| EP0757484A3 (en) | Subtitle recording and reproduction | |
| EP1039464A3 (en) | Multi-session disc having DVD application session, and recording and/or reproducing apparatus and method thereof | |
| CA2423554A1 (en) | Information recording/reproducing apparatus and method, recording medium and information recording medium with recording/reproducing control program | |
| JPH0249207A (en) | Magnetic head | |
| EP1017054A4 (en) | Recording medium, recorder, and player | |
| JP2001126336A5 (en) | Magneto-optical disk and recording and / or playback device | |
| JP2001126326A5 (en) | Magneto-optical disk and recording and / or playback device | |
| JP2002269911A5 (en) | ||
| JP2000285656A5 (en) | Information reproduction device and reproduction method of information reproduction device | |
| KR20060134312A (en) | Disc clamping device | |
| JP2003187531A5 (en) | ||
| CA2049767A1 (en) | Disc-shaped recording medium | |
| JP2000285471A5 (en) | Disk drive device and position adjustment method | |
| JPH0544926Y2 (en) | ||
| JP2988276B2 (en) | Disk with cartridge | |
| JPS60247851A (en) | Disk clamping device | |
| JP2550850B2 (en) | Disc player | |
| JPH1049951A (en) | Clamp centering mechanism | |
| JPS63113254U (en) | ||
| JP2001101781A5 (en) | Information recording / playback device | |
| Beavis et al. | Casualties of the hi-fi wars | |
| JPS63122979U (en) | ||
| MY123029A (en) | Hi-fi audio signal recording/playback apparatus using video heads |