KR19990088239A - 광디스크장치및광디스크장치가내장된컴퓨터 - Google Patents
광디스크장치및광디스크장치가내장된컴퓨터 Download PDFInfo
- Publication number
- KR19990088239A KR19990088239A KR1019990017060A KR19990017060A KR19990088239A KR 19990088239 A KR19990088239 A KR 19990088239A KR 1019990017060 A KR1019990017060 A KR 1019990017060A KR 19990017060 A KR19990017060 A KR 19990017060A KR 19990088239 A KR19990088239 A KR 19990088239A
- Authority
- KR
- South Korea
- Prior art keywords
- optical disk
- optical
- light source
- loaded
- irradiation intensity
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 438
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 21
- 238000002834 transmittance Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000007704 transition Effects 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0945—Methods for initialising servos, start-up sequences
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- 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
- G11B11/10595—Control of operating function
- G11B11/10597—Adaptations for transducing various formats on the same or different carriers
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/094—Methods and circuits for servo offset compensation
Abstract
Description
Claims (7)
- 광원과,광 디스크가 장전되는 광 디스크 장전부와,상기 광 디스크 장전부에 장전된 상기 광 디스크와 상기 광원 사이에 설치되어 상기 광원으로부터 출사된 광 빔을 수속하는 수속 광학계와,상기 광 디스크 장전부에 장전된 광 디스크가 기록형 광 디스크 또는 재생전용형 광 디스크 중 어느 것인지를 나타내는 정보를 포함하는 광 디스크 판별신호를 생성하는 판별회로를 가지며,상기 광 디스크 판별신호에 기초하여 상기 광 빔의 상기 광 디스크 상에서의 조사강도를 변화시키는 조사강도 조정기구를 추가로 구비한 광 디스크 장치.
- 제 1항에 있어서,상기 조사강도 조정기구는 상기 광 디스크 판별신호에 기초하여 상기 광원으로부터 출사되는 광 빔의 출사강도를 변화시키는 광 디스크 장치.
- 제 1항에 있어서,상기 조사강도 조정기구는 상기 광 디스크 판별신호에 기초하여 상기 광원으로부터 출사된 광 빔의 상기 광 디스크 상에서의 스포트 사이즈를 변화시키는 광 디스크 장치.
- 제 1항에 있어서,상기 조사강도 조정기구는 상기 광 디스크 판별신호에 기초하여 상기 광원으로부터 출사된 광 빔의 강도를 변화시키는 광학소자를, 상기 광원으로부터 상기 광 디스크에 이르는 광로 상에 삽입이나 배제 또는 상기 광학소자의 광 투과율을 변화시키는 광 디스크 장치.
- 제 1항에 있어서,상기 판별회로는 상기 광 디스크 장전부에 장전된 광 디스크로부터의 신호에 기초하여 상기 광 디스크의 종류를 판별하고 판별 결과에 따라 상기 판별신호를 출력하는 광 디스크 장치.
- 제 1항에 있어서,상기 조사강도 조정기구는 상기 광 디스크 판별신호가 기록형 광 디스크를 나타내는 경우 상기 광 빔의 상기 광 디스크 상에서의 조사강도를, 상기 광 디스크 판별신호가 재생전용형 광 디스크를 나타내는 경우의 상기 광 빔의 상기 광 디스크 상에서의 조사강도보다 낮게 하는 광 디스크 장치.
- 제 1항 기재의 광 디스크 장치와,상기 광 디스크 장치에 기록하기 위한 정보 및/또는 상기 광 디스크 장치로부터 재생된 정보를 처리하는 연산회로를 갖는 컴퓨터.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP???10-129888 | 1998-05-13 | ||
JP12988898 | 1998-05-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990088239A true KR19990088239A (ko) | 1999-12-27 |
KR100557073B1 KR100557073B1 (ko) | 2006-03-03 |
Family
ID=15020836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990017060A KR100557073B1 (ko) | 1998-05-13 | 1999-05-13 | 광 디스크 장치 및 광 디스크 장치가 내장된 컴퓨터 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6295260B1 (ko) |
KR (1) | KR100557073B1 (ko) |
CN (1) | CN1235199C (ko) |
TW (1) | TW430789B (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100885355B1 (ko) * | 2002-07-18 | 2009-02-26 | 닛본 덴끼 가부시끼가이샤 | 정보 기록 매체, 정보 기록 매체의 제조 방법, 정보 기록매체의 기록 방법 및 정보 기록 장치 |
KR100988705B1 (ko) * | 2002-08-29 | 2010-10-18 | 소니 주식회사 | 광헤드 및 광기록 매체 구동 장치 |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001101771A (ja) * | 1998-04-14 | 2001-04-13 | Matsushita Electric Ind Co Ltd | ディスク判別方法 |
JP2000100059A (ja) * | 1998-09-18 | 2000-04-07 | Mitsumi Electric Co Ltd | 光ディスク装置 |
WO2001054123A1 (fr) * | 2000-01-21 | 2001-07-26 | Sony Corporation | Procede de differentiation de disque optique, procede de lecture de disque optique et dispositif a disque optique |
US6823380B1 (en) * | 2000-08-07 | 2004-11-23 | Microsoft Corporation | System and method providing continual rate requests |
WO2002039446A2 (en) * | 2000-11-09 | 2002-05-16 | Burstein Technologies, Inc. | Disc drive system and methods for use with bio-discs |
JP2002245658A (ja) * | 2001-02-15 | 2002-08-30 | Sankyo Seiki Mfg Co Ltd | 光ヘッド装置 |
US6940794B2 (en) * | 2001-08-03 | 2005-09-06 | Matsushita Electric Industrial Co., Ltd. | Information recording/reproducing apparatus that determines the number of recording layers of an information recording medium |
CN1267910C (zh) * | 2001-09-27 | 2006-08-02 | 松下电器产业株式会社 | 光盘装置 |
DE10229234A1 (de) * | 2002-06-28 | 2004-02-12 | Deutsche Thomson-Brandt Gmbh | Eigensicherer Pickup für Wiedergabe- oder Aufzeichnungsgeräte unterschiedlicher optischer Aufzeichnungsträger |
WO2004038710A1 (en) * | 2002-10-23 | 2004-05-06 | Matsushita Electric Industrial Co., Ltd. | Optical disc drive and method for controlling the same |
TWI298156B (en) | 2002-10-24 | 2008-06-21 | Tian Holdings Llc | Discrimination method for light storage device |
US7602684B2 (en) * | 2003-09-15 | 2009-10-13 | Chun-Ta Chen | Discriminating method of an optical disc device for ascertaining the format of a loaded optical disc |
US7345961B2 (en) | 2003-10-23 | 2008-03-18 | Matsushita Electric Industrial Co., Ltd. | Information medium apparatus and information medium starting method |
US20050226114A1 (en) | 2004-03-31 | 2005-10-13 | Stanley Liow | Method and apparatus for generating absolute time in pregroove data |
JP2007535085A (ja) * | 2004-04-26 | 2007-11-29 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 異なるフォーマットの光学式記録担体を弁別する装置および方法 |
US7746745B2 (en) * | 2004-05-25 | 2010-06-29 | Ricky Chang | Method for determining the type of digital versatile disc |
US7570561B2 (en) * | 2004-05-25 | 2009-08-04 | Bryan Tai | Method for determining type of digital versatile discs |
US7626907B2 (en) * | 2004-05-25 | 2009-12-01 | Ricky Chang | Method and apparatus for determining type of digital versatile disc |
US7492685B2 (en) * | 2005-01-20 | 2009-02-17 | Zoran Corporation | Techniques for detecting a type of optical media and operating a media machine in response |
JP4672558B2 (ja) * | 2005-01-24 | 2011-04-20 | パナソニック株式会社 | ディスク判別方法及びディスク判別装置 |
JP2008152849A (ja) * | 2006-12-15 | 2008-07-03 | Sharp Corp | 光ピックアップ装置および光検出器 |
US20080205229A1 (en) * | 2007-02-26 | 2008-08-28 | Yung-Chih Li | Method of identifying optical disc |
EP2290644A3 (en) * | 2009-08-28 | 2011-03-30 | Hitachi Consumer Electronics Co., Ltd. | Optical disc, optical disc reproducing apparatus, optical disc apparatus, reproducing method and recording method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE238600T1 (de) * | 1991-02-18 | 2003-05-15 | Sony Corp | Plattenkassette und plattenaufzeichnungs - und/oder wiedergabegerät |
US5831952A (en) | 1995-07-27 | 1998-11-03 | Matsushita Electric Industrial Co., Ltd. | Optical disk thickness discriminating apparatus |
US6016301A (en) * | 1996-04-01 | 2000-01-18 | Sony Corporation | Optical pickup device and optical disc reproducing apparatus |
-
1999
- 1999-04-26 US US09/298,913 patent/US6295260B1/en not_active Expired - Lifetime
- 1999-05-05 TW TW088107409A patent/TW430789B/zh not_active IP Right Cessation
- 1999-05-06 CN CNB991062345A patent/CN1235199C/zh not_active Expired - Lifetime
- 1999-05-13 KR KR1019990017060A patent/KR100557073B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100885355B1 (ko) * | 2002-07-18 | 2009-02-26 | 닛본 덴끼 가부시끼가이샤 | 정보 기록 매체, 정보 기록 매체의 제조 방법, 정보 기록매체의 기록 방법 및 정보 기록 장치 |
KR100988705B1 (ko) * | 2002-08-29 | 2010-10-18 | 소니 주식회사 | 광헤드 및 광기록 매체 구동 장치 |
Also Published As
Publication number | Publication date |
---|---|
KR100557073B1 (ko) | 2006-03-03 |
CN1235340A (zh) | 1999-11-17 |
US6295260B1 (en) | 2001-09-25 |
CN1235199C (zh) | 2006-01-04 |
TW430789B (en) | 2001-04-21 |
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