JPS63109366U - - Google Patents

Info

Publication number
JPS63109366U
JPS63109366U JP1986203808U JP20380886U JPS63109366U JP S63109366 U JPS63109366 U JP S63109366U JP 1986203808 U JP1986203808 U JP 1986203808U JP 20380886 U JP20380886 U JP 20380886U JP S63109366 U JPS63109366 U JP S63109366U
Authority
JP
Japan
Prior art keywords
signal
signal level
disc
reference levels
optical
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
Application number
JP1986203808U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1986203808U priority Critical patent/JPS63109366U/ja
Priority to KR1019880701043A priority patent/KR960001260B1/ko
Priority to PCT/JP1987/001006 priority patent/WO1988005202A1/ja
Priority to DE3789444T priority patent/DE3789444T2/de
Priority to US07/243,036 priority patent/US5003521A/en
Publication of JPS63109366U publication Critical patent/JPS63109366U/ja
Priority to AT88900127T priority patent/ATE103408T1/de
Priority to EP88900127A priority patent/EP0294490B1/en
Pending legal-status Critical Current

Links

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
    • 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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • 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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B2020/1087—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
    • G11B2020/10879—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing the kind of record carrier being the selection criterion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2525—Magneto-optical [MO] discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Landscapes

  • Optical Recording Or Reproduction (AREA)

Description

【図面の簡単な説明】
第１図は本考案に係る光デイスクの判別装置の
一実施例の要部構成を示すブロツク図であり、第
２図は本考案を適用したＣＤプレーヤの再生系の
構成を示すブロツク図であり、第３図は上記実施
例における判別動作の手順を示すフローチヤート
であり、第４図は上記実施例における判別回路の
動作を示す波形図であり、第５図は上記実施例に
おけるフオーカスサーボ回路の構成を示す回路図
である。 １……レーザ光源、３……対物レンズ、５……
光検出器、８……フオーカスサーボ回路、９……
フオーカス駆動回路、１０……光ピツクアツプヘ
ツド、２０……光デイスク、３０……判別回路、
３１，３２……レベルコンパレータ。

Claims (1)

  1. 【実用新案登録請求の範囲】 光デイスクの記録面からの反射光を検出する光
    ピツクアツプの対物レンズを光軸方向に移動させ
    る手段と、 上記対物レンズを光軸方向に移動させて上記光
    ピツクアツプにて合焦状態前後に得られる検出出
    力の信号レベルを再生専用デイスク判別用の基準
    レベルおよび記録可能デイスク判別用の基準レベ
    ルと比較するレベル比較手段とを備え、 光デイスクの記録面の反射率の違いにより、再
    生専用デイスクと記録可能デイスクとを判別する
    ようにしたことを特徴とする光デイスクの判別装
    置。
JP1986203808U 1986-12-27 1986-12-27 Pending JPS63109366U (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP1986203808U JPS63109366U (ja) 1986-12-27 1986-12-27
KR1019880701043A KR960001260B1 (ko) 1986-12-27 1987-12-21 광디스크판별장치
PCT/JP1987/001006 WO1988005202A1 (en) 1986-12-27 1987-12-21 Optical disc discriminating device
DE3789444T DE3789444T2 (de) 1986-12-27 1987-12-21 Eine optische platte diskriminierendes gerät.
US07/243,036 US5003521A (en) 1986-12-27 1987-12-21 Optical disk discriminating device
AT88900127T ATE103408T1 (de) 1986-12-27 1988-07-19 Eine optische platte diskriminierendes geraet.
EP88900127A EP0294490B1 (en) 1986-12-27 1988-07-19 Optical disc discriminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986203808U JPS63109366U (ja) 1986-12-27 1986-12-27

Publications (1)

Publication Number Publication Date
JPS63109366U true JPS63109366U (ja) 1988-07-14

Family

ID=16480068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986203808U Pending JPS63109366U (ja) 1986-12-27 1986-12-27

Country Status (6)

Country Link
US (1) US5003521A (ja)
EP (1) EP0294490B1 (ja)
JP (1) JPS63109366U (ja)
KR (1) KR960001260B1 (ja)
DE (1) DE3789444T2 (ja)
WO (1) WO1988005202A1 (ja)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101392A (en) * 1988-11-21 1992-03-31 Kabushiki Kaisha Toshiba Information recording apparatus
JPH02247830A (ja) * 1989-03-20 1990-10-03 Pioneer Electron Corp サーボループのループゲイン設定方法
JPH0411325A (ja) * 1990-04-27 1992-01-16 Sony Corp 光ディスク記録装置
DE4114234A1 (de) * 1990-05-16 1991-11-21 Mitsubishi Electric Corp Optisches aufnahme- und speichermedium und optische aufnahmevorrichtung
JP2809835B2 (ja) * 1990-07-30 1998-10-15 松下電器産業株式会社 光ディスク装置および光ディスク
US5233584A (en) * 1990-09-04 1993-08-03 International Business Machines Corporation Optical disk device using high and low data-sensing criteria plus device recalibration for error control
DE69233445T2 (de) 1991-02-18 2005-10-27 Sony Corp. Plattenkassette und Plattenaufzeichnungs und/oder -wiedergabegerät
JPH05159327A (ja) * 1991-12-05 1993-06-25 Hitachi Ltd 光学式ディスクプレーヤにおけるフォーカスサーチ回路
US5414684A (en) * 1992-01-24 1995-05-09 Pioneer Electronic Corporation Method and apparatus for discriminating type of disks positioned on a CD player
EP0552985B1 (en) * 1992-01-24 1998-07-08 Pioneer Electronic Corporation Method and apparatus for reproducing information
JP3250838B2 (ja) * 1992-02-21 2002-01-28 パイオニア株式会社 光ディスクプレーヤ
JP3377048B2 (ja) * 1992-04-24 2003-02-17 パイオニア株式会社 追記型光ディスクの再生装置および再生方法
EP0586084B1 (en) * 1992-08-04 1998-04-08 Sony Corporation Reproducing apparatus
JPH06111334A (ja) * 1992-09-24 1994-04-22 Sony Corp 円盤状記録媒体用の記録及び／又は再生装置、光検出器及び光ヘッド
JPH0814929B2 (ja) * 1992-12-28 1996-02-14 ティアック株式会社 光ディスク装置
JP3318636B2 (ja) * 1994-03-31 2002-08-26 ソニー株式会社 サーボ装置、光ディスク再生装置
KR0133982B1 (ko) * 1994-04-13 1998-04-22 김광호 픽업장치의 초기위치 설정방법
US5684771A (en) * 1995-02-27 1997-11-04 Pioneer Electronic Corporation Optical recording medium discriminating apparatus
JPH08263930A (ja) * 1995-03-24 1996-10-11 Pioneer Electron Corp ディスク判別方法
JPH08315515A (ja) * 1995-05-18 1996-11-29 Sony Corp データ記録／再生装置および方法、並びにデータ記録媒体
CN100405479C (zh) * 1995-07-27 2008-07-23 松下电器产业株式会社 光盘装置
US5831952A (en) 1995-07-27 1998-11-03 Matsushita Electric Industrial Co., Ltd. Optical disk thickness discriminating apparatus
US5587981A (en) * 1995-09-05 1996-12-24 Kamatani; Yasuo Multi-standard optical disk reading method having distinction process
JPH09106617A (ja) * 1995-10-06 1997-04-22 Pioneer Electron Corp 情報記録媒体判別方法及び装置並びにフォーカスサーボ制御方法及び装置
MY132591A (en) * 1995-10-26 2007-10-31 Sony Corp Optical disc apparatus.
DE69627962T2 (de) * 1995-11-10 2004-03-11 Kabushiki Kaisha Toshiba, Kawasaki Antriebsvorrichtung für Objektivlinse
US5917791A (en) * 1995-11-30 1999-06-29 Sanyo Electric Co., Ltd. Apparatus for discriminating optical recording media of different thicknesses from each other and reproducing information therefrom
KR0176557B1 (ko) * 1996-01-08 1999-04-15 김광호 광디스크 시스템에 있어서 디스크 판별방법 및 장치
KR100224821B1 (ko) * 1996-01-12 1999-10-15 윤종용 광디스크 시스템에 있어서 두께가 다른 디스크 판별방법및장치
KR0176569B1 (ko) * 1996-01-29 1999-04-15 김광호 광디스크 시스템에 있어서 두께가 다른 디스크간의 자동판별방법 및 장치
KR100189899B1 (ko) * 1996-02-14 1999-06-01 윤종용 두께가 다른 광 디스크의 판별 방법 및 이를 적용한 광학장치
DE19609575A1 (de) * 1996-03-12 1997-09-18 Thomson Brandt Gmbh Gerät zum Beschreiben und/oder Lesen optischer Aufzeichnungsträger unterschiedlichen Aufbaus
JP3547253B2 (ja) * 1996-03-13 2004-07-28 パイオニア株式会社 ディスクプレーヤ及び情報再生方法
KR100194040B1 (ko) * 1996-04-19 1999-06-15 윤종용 광디스크 플레이어 시스템의 디스크 판별장치
KR0185953B1 (ko) * 1996-06-29 1999-04-15 김광호 Dvd시스템의 dvd/cd 판별방법
KR100192418B1 (ko) * 1996-07-13 1999-06-15 구자홍 트랙 횡단신호 검출회로
DE69727989T2 (de) * 1996-09-25 2004-07-22 Victor Company of Japan, Ltd., Yokohama Gerät zur Festlegung des Typs einer Platte, Gerät zur Wiedergabe einer optischen Platte
KR100197622B1 (ko) * 1996-10-24 1999-06-15 윤종용 디스크종류판별방법 및 이를 적용한 dvd시스템
KR100197623B1 (ko) * 1996-10-24 1999-06-15 윤종용 디스크종류판별방법 및 이를 적용한 dvd시스템
JP3753267B2 (ja) * 1996-10-25 2006-03-08 ソニー株式会社 ディスク記録再生装置および方法
US5859822A (en) * 1996-12-13 1999-01-12 Hitachi, Ltd. Optical disc player capable of reproducing a plurality of different types of optical discs
US6747930B1 (en) 1996-12-24 2004-06-08 Hide & Seek Technologies, Inc. Data protection on an optical disk
KR100521667B1 (ko) 1997-01-10 2006-01-27 소니 가부시끼 가이샤 광디스크장치및광디스크판별방법
JPH10199003A (ja) * 1997-01-10 1998-07-31 Sony Corp 光ディスク装置
JPH10214451A (ja) * 1997-01-29 1998-08-11 Alpine Electron Inc デジタルディスクプレーヤ
JPH10233053A (ja) * 1997-02-20 1998-09-02 Alps Electric Co Ltd ディスク判別装置およびディスク判別方法
TW469424B (en) * 1997-04-17 2001-12-21 Alps Electric Co Ltd Disk discriminating method
WO1999022340A1 (en) * 1997-10-28 1999-05-06 Hide And Seek Technologies, Inc. Optical disc authentication and data storage
KR19990052633A (ko) * 1997-12-23 1999-07-15 구자홍 광기록매체 판별방법
JP2000165167A (ja) * 1998-11-20 2000-06-16 Pioneer Electronic Corp 利得制御装置及び方法、情報再生装置及び方法並びに情報記録装置及び方法
JP2001006264A (ja) 1999-06-22 2001-01-12 Matsushita Electric Ind Co Ltd 光ディスク記録再生装置
TWI298156B (en) * 2002-10-24 2008-06-21 Tian Holdings Llc Discrimination method for light storage device
JP4164430B2 (ja) * 2002-10-29 2008-10-15 キヤノン株式会社 記録媒体識別装置、記録装置、および記録媒体識別方法
CN100341052C (zh) * 2002-11-12 2007-10-03 三星电子株式会社 用于检测光盘类型和/或调节磁道平衡的装置和方法
JP2004206765A (ja) * 2002-12-24 2004-07-22 Teac Corp 光ディスク装置
CN100412972C (zh) * 2003-09-15 2008-08-20 宇田控股有限公司 光盘片格式的辨识方法
US20050226114A1 (en) 2004-03-31 2005-10-13 Stanley Liow Method and apparatus for generating absolute time in pregroove data
US7149169B2 (en) * 2003-11-13 2006-12-12 Mediatek Inc. Distinguishing optical disc types
US20050111672A1 (en) * 2003-11-25 2005-05-26 Chen-Lee Chen Speaker matcher for use of multiple rooms
US7746745B2 (en) * 2004-05-25 2010-06-29 Ricky Chang Method for determining the type of digital versatile disc
US7626907B2 (en) * 2004-05-25 2009-12-01 Ricky Chang Method and apparatus for determining type of digital versatile disc
US7609599B2 (en) * 2006-02-17 2009-10-27 Mediatek Inc. Method of identifying a type of an optical disc and the device therefor

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849645B2 (ja) * 1976-02-14 1983-11-05 株式会社東芝 取水門扉制御装置
JPS52134704A (en) * 1976-05-06 1977-11-11 Teac Co Optical recorder/reproducer unit
JPS586212B2 (ja) * 1976-05-06 1983-02-03 ティアック株式会社 光学的記録再生装置
JPS58161160A (ja) * 1982-03-19 1983-09-24 Hitachi Ltd 光デイスクおよび装置
US4642803A (en) * 1982-08-09 1987-02-10 Drexler Technology Corporation Optical data retrieval system for multi-characteristic reflective data storage media
JPS5960742A (ja) * 1982-09-30 1984-04-06 Fujitsu Ltd 光デイスクの記録再生制御方法
JPS5998333A (ja) * 1982-11-27 1984-06-06 Canon Inc 情報記録再生装置
DE3342525A1 (de) * 1982-11-27 1984-05-30 Canon K.K., Tokio/Tokyo Geraet zur informations-aufzeichnung und/oder -wiedergabe
JPS59116939A (ja) * 1982-12-23 1984-07-06 Olympus Optical Co Ltd 光学式記録再生装置
JPS59165212A (ja) * 1983-03-08 1984-09-18 Sony Corp 情報信号再生装置
JPS59188845A (ja) * 1983-04-08 1984-10-26 Onkyo Corp 光ピツクアツプ
JPS59198537A (ja) * 1983-04-22 1984-11-10 Matsushita Electric Ind Co Ltd 光学的記録再生装置
JPS6160838A (ja) * 1984-08-29 1986-03-28 Toshiba Corp 原子炉用コ−ルドトラツプ
JPH0640390B2 (ja) * 1984-09-30 1994-05-25 株式会社東芝 光学式記録再生装置におけるフオ−カスサ−ボ・タイミングコントロ−ル装置
JPS61160838A (ja) * 1985-01-10 1986-07-21 Canon Inc 光学式情報記録再生装置
FR2575857B1 (fr) * 1984-11-29 1995-03-03 Canon Kk Appareil de stockage optique d'informations
JPS61177642A (ja) * 1985-01-31 1986-08-09 Olympus Optical Co Ltd 光学的情報記録再生装置
JPS61258367A (ja) * 1985-05-10 1986-11-15 Toshiba Corp デイスク装置
JPS6267731A (ja) * 1985-09-20 1987-03-27 Fujitsu Ltd 光記録再生方法及び光記録再生装置

Also Published As

Publication number Publication date
WO1988005202A1 (en) 1988-07-14
EP0294490A1 (en) 1988-12-14
DE3789444T2 (de) 1994-07-07
DE3789444D1 (de) 1994-04-28
KR960001260B1 (ko) 1996-01-24
US5003521A (en) 1991-03-26
EP0294490A4 (en) 1991-03-13
KR890700255A (ko) 1989-03-10
EP0294490B1 (en) 1994-03-23

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