KR960035542A - Magneto-optical disk drive system - Google Patents
Magneto-optical disk drive system Download PDFInfo
- Publication number
- KR960035542A KR960035542A KR1019950007559A KR19950007559A KR960035542A KR 960035542 A KR960035542 A KR 960035542A KR 1019950007559 A KR1019950007559 A KR 1019950007559A KR 19950007559 A KR19950007559 A KR 19950007559A KR 960035542 A KR960035542 A KR 960035542A
- Authority
- KR
- South Korea
- Prior art keywords
- magneto
- drive system
- optical disk
- disk drive
- disk
- 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
- 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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1406—Reducing the influence of the temperature
- G11B33/144—Reducing the influence of the temperature by detection, control, regulation of the temperature
Landscapes
- Optical Head (AREA)
Abstract
본 발명은 광자기 디스크 드라이브 시스템에 관한 것으로서, 좀더 상세하게는 광자기 디스크 드라이브 시스템에 있어서, 상기 드라이브 시스템에 온도 조절장치가 디스크를 일정온도범위로 가열 및 유지할 수 있도록 디스크로부터 일정거리 이격되고, 디스크축을 기준으로 광원 또는 픽업의 반대편에 상기 온도조절장치를 광자기 디스크 드라이브 시스템에 제공하므로써 광원으로 단파장의 적외선레이저의 사용을 가능하게 하고, 이에따라 디스크의 기록밀도를 향상시킬 수 있는 광자기 디스크 드라이브 시스템에 관한 것이다.The present invention relates to a magneto-optical disk drive system, and more particularly, to a magneto-optical disk drive system, in which the temperature control device is spaced apart from the disk so that the temperature control device heats and maintains the disk in a predetermined temperature range. The magneto-optical disk drive which enables the use of a short wavelength infrared laser as a light source by providing the temperature control device to the magneto-optical disk drive system on the opposite side of the light source or pickup relative to the disk axis, thereby improving the recording density of the disk. It is about the system.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제4도는 본 발명의 광자기 디스크 드라이브시스템을 개략적으로 도시한 도면, 제5도는 본 발명의 온도조절 회로도의 일 실시예를 도시한 도면, 제6도는 일반적인 광자기 디스크의 커회전각(Θk), 보자력(Hc)의 온도 의존성을 나타낸 그래프.FIG. 4 is a schematic view showing the magneto-optical disk drive system of the present invention, FIG. 5 is a diagram showing an embodiment of the temperature control circuit diagram of the present invention, and FIG. 6 is a Kerr rotation angle Θk of a typical magneto-optical disk. , Graph showing the temperature dependence of the coercive force (Hc).
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950007559A KR100203831B1 (en) | 1995-03-31 | 1995-03-31 | Optical magnetic disc driving system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950007559A KR100203831B1 (en) | 1995-03-31 | 1995-03-31 | Optical magnetic disc driving system |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960035542A true KR960035542A (en) | 1996-10-24 |
KR100203831B1 KR100203831B1 (en) | 1999-06-15 |
Family
ID=19411343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950007559A Expired - Fee Related KR100203831B1 (en) | 1995-03-31 | 1995-03-31 | Optical magnetic disc driving system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100203831B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100548254B1 (en) * | 2003-09-30 | 2006-02-02 | 엘지전자 주식회사 | Optical disc drive with optical disc breakage prevention function and optical disc breakage prevention method operating in optical disc drive |
-
1995
- 1995-03-31 KR KR1019950007559A patent/KR100203831B1/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100548254B1 (en) * | 2003-09-30 | 2006-02-02 | 엘지전자 주식회사 | Optical disc drive with optical disc breakage prevention function and optical disc breakage prevention method operating in optical disc drive |
Also Published As
Publication number | Publication date |
---|---|
KR100203831B1 (en) | 1999-06-15 |
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Legal Events
Date | Code | Title | Description |
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PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19950331 |
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PG1501 | Laying open of application | ||
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19961230 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19950331 Comment text: Patent Application |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19981230 |
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Comment text: Registration of Establishment Patent event date: 19990324 Patent event code: PR07011E01D |
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