KR960035542A - Magneto-optical disk drive system - Google Patents

Magneto-optical disk drive system Download PDF

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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
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KR
South Korea
Prior art keywords
magneto
drive system
optical disk
disk drive
disk
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Granted
Application number
KR1019950007559A
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Korean (ko)
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KR100203831B1 (en
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김명준
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김광호
삼성전자 주식회사
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Priority to KR1019950007559A priority Critical patent/KR100203831B1/en
Publication of KR960035542A publication Critical patent/KR960035542A/en
Application granted granted Critical
Publication of KR100203831B1 publication Critical patent/KR100203831B1/en
Anticipated expiration legal-status Critical
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    • 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
    • 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

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  • 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

광자기 디스크 드라이브 시스템Magneto-optical disk drive system

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)

광자기 디스크 드라이브 시스템에 있어서, 상기 드라이브 시스템에 온도 조절장치가 디스크를 일정 온도범위로 가열 및 유지할 수 있도록 디스크로부터 일정거리 이격되고, 디스크축을 기준으로 광원 또는 픽업의 반대편에 상기 온도조절장치가 형성된 것을 특징으로 하는 광자기 디스크 드라이브 시스템.In a magneto-optical disk drive system, the drive system is spaced a certain distance from the disk to allow the temperature controller to heat and maintain the disk in a predetermined temperature range, the temperature controller is formed on the opposite side of the light source or pickup relative to the disk axis Magneto-optical disk drive system, characterized in that. 제1항에 있어서, 상기 온도조절장치가 열원을 제어하기 위한 온도조절회로를 가지고 디스크를 가열하는 외부열원 및 디스크의 온도를 감지하여 상기 외부열원의 온도조절회로로 신호를 보내는 온도센서로 구성되는 것을 특징으로 하는 광자기 디스크 드라이브 시스템.According to claim 1, wherein the temperature control device has a temperature control circuit for controlling the heat source is composed of an external heat source for heating the disk and a temperature sensor for sensing the temperature of the disk and sending a signal to the temperature control circuit of the external heat source. Magneto-optical disk drive system, characterized in that. 제2항에 있어서, 상기 외부열원으로 디스크의 온도를 디스크의 큐리온도 이하로 유지하는 것을 특징으로 하는 광자기 디스크 드라이브 시스템.The magneto-optical disk drive system according to claim 2, wherein the external heat source maintains the temperature of the disk below the Curie temperature of the disk. 제3항에 있어서, 상기 외부열원으로 디스크의 온도를 70℃ - 90℃로 유지하는 것을 특징으로 하는 광자기 디스크 드라이브 시스템.4. The magneto-optical disk drive system according to claim 3, wherein the external heat source maintains the temperature of the disk at 70 ° C-90 ° C. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950007559A 1995-03-31 1995-03-31 Optical magnetic disc driving system Expired - Fee Related KR100203831B1 (en)

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

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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

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KR (1) KR100203831B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

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Publication number Publication date
KR100203831B1 (en) 1999-06-15

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