DE69605648D1 - Optische Platte mit Auswertungsmuster zur Auswertung derselben - Google Patents

Optische Platte mit Auswertungsmuster zur Auswertung derselben

Info

Publication number
DE69605648D1
DE69605648D1 DE69605648T DE69605648T DE69605648D1 DE 69605648 D1 DE69605648 D1 DE 69605648D1 DE 69605648 T DE69605648 T DE 69605648T DE 69605648 T DE69605648 T DE 69605648T DE 69605648 D1 DE69605648 D1 DE 69605648D1
Authority
DE
Germany
Prior art keywords
pits
longest
shortest
error rate
test pattern
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.)
Expired - Lifetime
Application number
DE69605648T
Other languages
English (en)
Other versions
DE69605648T2 (de
Inventor
Fujimoto Sadanari
Satoh Hiroharu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26431217&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69605648(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of DE69605648D1 publication Critical patent/DE69605648D1/de
Application granted granted Critical
Publication of DE69605648T2 publication Critical patent/DE69605648T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B20/182—Testing using test patterns
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • G11B7/00375—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs arrangements for detection of physical defects, e.g. of recording layer
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Holo Graphy (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
DE69605648T 1995-04-14 1996-04-12 Optische Platte mit Auswertungsmuster zur Auswertung derselben Expired - Lifetime DE69605648T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8980795 1995-04-14
JP8980695 1995-04-14

Publications (2)

Publication Number Publication Date
DE69605648D1 true DE69605648D1 (de) 2000-01-20
DE69605648T2 DE69605648T2 (de) 2000-07-13

Family

ID=26431217

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69605648T Expired - Lifetime DE69605648T2 (de) 1995-04-14 1996-04-12 Optische Platte mit Auswertungsmuster zur Auswertung derselben
DE69600361T Expired - Lifetime DE69600361T2 (de) 1995-04-14 1996-04-12 Optische Platte mit Auswertungsmuster zur Auswertung derselben

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69600361T Expired - Lifetime DE69600361T2 (de) 1995-04-14 1996-04-12 Optische Platte mit Auswertungsmuster zur Auswertung derselben

Country Status (16)

Country Link
US (3) US5696756A (de)
EP (2) EP0737976B1 (de)
KR (1) KR100253618B1 (de)
CN (1) CN1154095C (de)
AT (2) ATE187841T1 (de)
BR (1) BR9606466A (de)
CA (1) CA2191588C (de)
DE (2) DE69605648T2 (de)
DK (1) DK0737976T3 (de)
ES (1) ES2120261T3 (de)
HK (1) HK1012840A1 (de)
MX (1) MX9606399A (de)
MY (1) MY116512A (de)
NO (1) NO323767B1 (de)
TW (2) TW344070B (de)
WO (1) WO1996032715A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5696756A (en) * 1995-04-14 1997-12-09 Kabushiki Kaishia Toshiba Optical disk having an evaluation pattern for evaluating the optical disk
EP1022738B1 (de) * 1996-02-08 2002-07-24 Matsushita Electric Industrial Co., Ltd. Optische Platte, optische Plattenvorrichtung, und Verfahren zur Wiedergabe von Informationen auf der optischen Platte
JP3661297B2 (ja) * 1996-08-21 2005-06-15 ソニー株式会社 評価信号生成装置、フォーカスバイアス調整方法、スキュー調整方法
KR100215745B1 (ko) * 1996-12-19 1999-08-16 구자홍 씨디 품질 검사방법
JPH10198959A (ja) * 1997-01-10 1998-07-31 Sony Corp 相変化光ディスクの初期化方法及び相変化光ディスク
JP3211002B2 (ja) * 1997-04-24 2001-09-25 富士通株式会社 光記録媒体、チルト検出器、光ディスク装置、チルト検出方法及びチルト補正方法
JP3494019B2 (ja) * 1998-06-17 2004-02-03 ヤマハ株式会社 光ディスク記録装置
US6332760B1 (en) * 2000-04-04 2001-12-25 Team Worldwide Corporation Inflatable product provided with built-in battery case and socket
EP1262971B1 (de) * 2001-05-28 2009-07-29 Sharp Kabushiki Kaisha Schätzung der BER in einem optischen Plattendecoder aufgrund der Anzahl von Signalen, die nach PRML Detektion eine Wahrscheinlichkeit unter einer Schwelle haben.
KR100503793B1 (ko) * 2002-08-24 2005-07-26 삼성전자주식회사 테스트용 광디스크
US7295500B2 (en) * 2002-09-30 2007-11-13 Nec Corporation Recording condition setting method and information recorder using same
KR100932506B1 (ko) * 2003-02-27 2009-12-17 엘지전자 주식회사 고밀도 광디스크의 재생 제어정보 관리 및 데이터 재생제어방법
JP3967691B2 (ja) * 2003-03-31 2007-08-29 株式会社東芝 情報記憶媒体と情報再生装置と情報記録再生装置
JP4280996B2 (ja) * 2004-05-13 2009-06-17 太陽誘電株式会社 光情報記録装置
KR100667764B1 (ko) * 2004-10-08 2007-01-12 삼성전자주식회사 광 기록 매체, 기록/재생 방법 및 기록/재생 장치
JP4523583B2 (ja) * 2006-12-27 2010-08-11 太陽誘電株式会社 データ記録評価方法及び光ディスク記録再生装置
JP2011048869A (ja) * 2009-08-26 2011-03-10 Sony Corp 等化フィルタ装置、タップ係数更新方法、再生装置
JP2012079385A (ja) * 2010-10-04 2012-04-19 Sony Corp データ検出装置、再生装置、データ検出方法
US9330784B2 (en) * 2011-12-29 2016-05-03 Intel Corporation Dynamic window to improve NAND endurance
WO2014054246A1 (ja) * 2012-10-05 2014-04-10 パナソニック株式会社 情報再生装置及び情報再生方法
US9281006B2 (en) * 2013-12-13 2016-03-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for ATI characterization
CN206368786U (zh) 2016-12-08 2017-08-01 明达实业(厦门)有限公司 泵与充气产品的连接结构

Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US33506A (en) * 1861-10-15 Improvement in ditching and tile-laying machines
JPS5814332A (ja) * 1981-07-16 1983-01-27 Mitsubishi Electric Corp 光学式情報再生装置
JPS5832236A (ja) * 1981-08-18 1983-02-25 Matsushita Electric Ind Co Ltd 光学的記録再生装置
US4494226A (en) * 1981-10-15 1985-01-15 Burroughs Corporation Three beam optical memory system
JPS59116939A (ja) * 1982-12-23 1984-07-06 Olympus Optical Co Ltd 光学式記録再生装置
AU575332B2 (en) * 1983-07-29 1988-07-28 Sony Corporation Optical disk pick-up
JPS60120522U (ja) * 1984-01-23 1985-08-14 パイオニア株式会社 光学式記録情報読取装置
JPS60123763U (ja) * 1984-01-30 1985-08-21 パイオニア株式会社 記録情報再生装置
JPH0626025B2 (ja) * 1986-09-09 1994-04-06 ティアツク株式会社 デイスク傾斜度検出装置
USRE33506E (en) * 1986-09-09 1990-12-25 Teac Corporation Disc inclination detecting apparatus
JPS63152034A (ja) * 1986-12-15 1988-06-24 Ricoh Co Ltd 光デイスク
DE3855635T2 (de) * 1987-02-12 1997-05-28 Dainippon Printing Co Ltd Methode zur datenspeicherung und -wiedergabe für eine optische karte
US4873680A (en) * 1987-03-13 1989-10-10 Laserdrive Ltd. Apparatus and method for detecting and compensating for pit extension in an optical disk recording system
JP2635608B2 (ja) * 1987-08-29 1997-07-30 株式会社東芝 光学的情報記憶媒体検査装置
JP2565238B2 (ja) * 1987-10-15 1996-12-18 ソニー株式会社 光学式ディスク再生装置
JP2703576B2 (ja) * 1988-10-03 1998-01-26 株式会社日立製作所 光デイスク装置
US5568454A (en) * 1989-03-09 1996-10-22 Tosoh Corporation Apparatus and method for detecting a defect on a magneto-optical disk
JPH0646487B2 (ja) * 1989-03-31 1994-06-15 キヤノン株式会社 情報記録再生方法、情報記録再生装置及び情報記録担体
US5070495A (en) * 1989-04-12 1991-12-03 International Business Machines Corporation Write calibration for magnetooptic disk recorders
DE69014436T2 (de) * 1989-06-23 1995-06-14 Philips Electronics Nv Aufzeichnungsanordnung zum Anbringen eines Informationsmusters auf einem strahlungsempfindlichen Aufzeichnungsträger.
NL9000327A (nl) * 1990-02-12 1991-09-02 Philips Nv Informatieoptekeninrichting.
JP3066758B2 (ja) * 1990-04-26 2000-07-17 株式会社リコー 光情報記録方法
JPH04102201A (ja) * 1990-08-21 1992-04-03 Tokico Ltd 磁気ディスク装置
JPH04105269A (ja) * 1990-08-24 1992-04-07 Sony Corp ディスク記録装置及びディスク記録再生装置
JP3063230B2 (ja) * 1991-05-31 2000-07-12 ソニー株式会社 書き換え可能なディスクおよびディスク装置
JP3134508B2 (ja) * 1992-06-23 2001-02-13 ソニー株式会社 光記録媒体の信号検出方法
JP3228789B2 (ja) * 1992-07-11 2001-11-12 新光電気工業株式会社 樹脂用インサート部材の製造方法
JP3176145B2 (ja) * 1992-09-08 2001-06-11 パイオニア株式会社 光学式情報記録再生装置
US5627818A (en) * 1992-10-13 1997-05-06 International Business Machines Corporation Optical disk with marks used for calibrating an optical detector to minimize noise from undesired perturbations in disk surfaces
JP3558168B2 (ja) * 1992-10-30 2004-08-25 ソニー株式会社 光学式情報再生装置
DE69320458D1 (de) * 1992-12-17 1998-09-24 Samsung Electronics Co Ltd Plattenaufzeichnungsmedium und verfahren und gerät zur wiedergabe dafür
JP3255308B2 (ja) * 1992-12-18 2002-02-12 ソニー株式会社 データ再生装置
US5430699A (en) * 1993-02-24 1995-07-04 Matsushita Electric Industrial Co., Ltd. Optical reading and writing device
US5535008A (en) * 1993-03-16 1996-07-09 Victor Company Of Japan, Ltd. Method for jump-reproducing video data of moving picture coded with high efficiency
JPH06295439A (ja) * 1993-04-06 1994-10-21 Hitachi Ltd 光記録の記録方法
JPH06295458A (ja) * 1993-04-09 1994-10-21 Pioneer Electron Corp 光学式情報記録再生装置
BE1007029A3 (nl) * 1993-04-22 1995-02-21 Koninkl Philips Electronics Nv Werkwijze voor het afleiden van een kwaliteitssignaal uit een uitgelezen signaal, alsmede een optekeninrichting en een uitleesinrichting waarin een dergelijke werkwijze wordt toegepast.
US5617388A (en) * 1993-05-31 1997-04-01 Sony Corporation Disc recording/reproducing apparatus which uses stored eccentricity data to maintain the read/write head at a constant radial position during a stand-by mode
JP3161891B2 (ja) * 1993-11-16 2001-04-25 松下電器産業株式会社 ディスクチルト検出装置およびディスクチルト補正装置
JP3326946B2 (ja) * 1994-01-10 2002-09-24 ソニー株式会社 光ディスク再生装置及び光ディスク再生方法
JPH08509314A (ja) * 1994-02-14 1996-10-01 フィリップス エレクトロニクス ネムローゼ フェン ノートシャップ 記録キャリヤに信号を記録する方法および記録装置
US5396479A (en) * 1994-05-06 1995-03-07 Maxoptix Corporation Apparatus and method for setting a threshold level to maintain duty cycle in a pulse width modulated optical recording system
TW272279B (de) * 1994-06-22 1996-03-11 Nippon Pickta Kk
JPH0845081A (ja) * 1994-07-28 1996-02-16 Matsushita Electric Ind Co Ltd 光ディスク媒体および光ディスク装置
JPH08129458A (ja) * 1994-10-31 1996-05-21 Toshiba Corp 光記憶媒体を使用した情報機器
EP0709834B1 (de) * 1994-10-31 2000-05-24 Matsushita Electric Industrial Co., Ltd. Kippsensor, optische Platte, und Kippkompensierensverfahren zur Durchführung einer stabilen Kippkompensationsregelung, und Gerät zur Verwendung derselben
JPH08129753A (ja) * 1994-10-31 1996-05-21 Nec Corp 光記録再生装置
JP2687904B2 (ja) * 1994-12-15 1997-12-08 日本電気株式会社 書換え型光記録再生装置
JPH08167150A (ja) * 1994-12-15 1996-06-25 Nec Corp 書換え型光記録再生装置
JP2999684B2 (ja) * 1995-03-10 2000-01-17 株式会社日立製作所 光学ディスクの記録制御方法および光学ディスク装置
US5696756A (en) * 1995-04-14 1997-12-09 Kabushiki Kaishia Toshiba Optical disk having an evaluation pattern for evaluating the optical disk

Also Published As

Publication number Publication date
DE69600361D1 (de) 1998-07-23
CA2191588A1 (en) 1996-10-17
BR9606466A (pt) 1997-10-14
TW344817B (en) 1998-11-11
ES2120261T3 (es) 1998-10-16
MX9606399A (es) 1997-05-31
EP0737976A1 (de) 1996-10-16
NO323767B1 (no) 2007-07-02
EP0805449A2 (de) 1997-11-05
DK0737976T3 (da) 1999-02-01
KR100253618B1 (ko) 2000-04-15
US5930227A (en) 1999-07-27
ATE167587T1 (de) 1998-07-15
US5696756A (en) 1997-12-09
WO1996032715A1 (fr) 1996-10-17
DE69600361T2 (de) 1998-11-12
MY116512A (en) 2004-02-28
NO965357L (no) 1997-01-10
AU692699B2 (en) 1998-06-11
US5892751A (en) 1999-04-06
ATE187841T1 (de) 2000-01-15
EP0805449B1 (de) 1999-12-15
CN1154095C (zh) 2004-06-16
CA2191588C (en) 2000-11-14
EP0737976B1 (de) 1998-06-17
NO965357D0 (no) 1996-12-13
HK1012840A1 (en) 1999-08-06
DE69605648T2 (de) 2000-07-13
CN1150855A (zh) 1997-05-28
EP0805449A3 (de) 1997-11-19
AU5288196A (en) 1996-10-30
KR970704203A (ko) 1997-08-09
TW344070B (en) 1998-11-01

Similar Documents

Publication Publication Date Title
DE69605648D1 (de) Optische Platte mit Auswertungsmuster zur Auswertung derselben
EP1059630A4 (de) Verfahren und vorrichtung zur feststellung von bedingungen auf einem aufzeichnungspuls einer optischen platte
DE69227680D1 (de) Datenaufzeichnungsmedium, datenaufzeichnungsgerät, datenwiedergabegerät und datenaufzeichnungs/wiedergabegerät
AU4554489A (en) Method and apparatus for controlling and detecting recording laser beam
DE69431713D1 (de) Optisches aufzeichnungsmedium, gerät zur wiedergabe von einer optischen platte, verfahren zur wiedergabe von einer optischen platte, verfahren zur herstellung von einer originalplatte und verfahren zum halten von illegalem programmablauf
SE8104760L (sv) Sett och apparat for detektering av en redigeringspunkt pa ett registreringsmedium
EP0164746A3 (en) Optical information recording and reproducing apparatus and optical disc
DE69132426D1 (de) System zur Aufzeichnung/Wiedergabe von Information auf/von eine(r) aufzeichnungsfähige(n) optische(n) Platte
EP0889468A3 (de) Verfahren und Vorrichtung zur Steuerung einer Aufzeichnungsbedingung und optisches Aufzeichnungsmedium für optisches Aufzeichnungsgerät
DE69310789D1 (de) Informationsaufzeichnungseinrichtung
ATE156293T1 (de) Informationsaufzeichnungseinheit und gerät und verfahren zur informationsaufzeichnung/- wiedergabe
DK221485A (da) Apparat til gengivelse af navnlig billedinformation, der er optegnetpaa en magnetplade eller -skive
MY126892A (en) Optical recording/reproducing apparatus, optical head apparatus, optical disc drive apparatus, tracking control method for use therein, and optical disc
ATE193396T1 (de) Ein aufzeichnungs- und wiedergabegerät für digitale signale
DK549288A (da) Sporreguleringskreds til en optisk aftastningsanordning
EP0469486A3 (en) Apparatus for reproducing information from optical disk on which information is recorded by mark length recording
DE69130186D1 (de) Zum Wiederaufzeichnen geeignete optische Platte
BR9004124A (pt) Dispositivo de leitura e gravacao de informacao,e portadora de registro
KR890005691A (ko) 광정보기록 재생장치용 트랙억세스장치 및 그 억세스방법
JP2001167443A5 (de)
EP0403196A3 (de) Optisches Informationsaufzeichnungs-/Wiedergabegerät mit einer Mehrheit von Bemusterungskreisen
DE69607659D1 (de) Aufzeichnung von Informationen auf eine optische Platte ohne vorgeprägte Spur
DE3786949D1 (de) Informationsaufzeichnungs- und -wiedergabegeraet.
MY123154A (en) Device for reading optical recording media having improved track error signal correction
DE69016098D1 (de) Verfahren zur Erfassung von Pitmustern.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition