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WO2005024798A3 - Methode de lecture ou d'inscription de sillon, moyen d'enregistrement et graveur de disques optiques - Google Patents

Methode de lecture ou d'inscription de sillon, moyen d'enregistrement et graveur de disques optiques Download PDF

Info

Publication number
WO2005024798A3
WO2005024798A3 PCT/IB2004/051593 IB2004051593W WO2005024798A3 WO 2005024798 A3 WO2005024798 A3 WO 2005024798A3 IB 2004051593 W IB2004051593 W IB 2004051593W WO 2005024798 A3 WO2005024798 A3 WO 2005024798A3
Authority
WO
WIPO (PCT)
Prior art keywords
spots
recorder
optical disc
recording means
tracking method
Prior art date
Application number
PCT/IB2004/051593
Other languages
English (en)
Other versions
WO2005024798A2 (fr
Inventor
Erwin R Meinders
Joachim W Hellmig
Gerardus R Langereis
Original Assignee
Koninkl Philips Electronics Nv
Erwin R Meinders
Joachim W Hellmig
Gerardus R Langereis
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 by Koninkl Philips Electronics Nv, Erwin R Meinders, Joachim W Hellmig, Gerardus R Langereis filed Critical Koninkl Philips Electronics Nv
Publication of WO2005024798A2 publication Critical patent/WO2005024798A2/fr
Publication of WO2005024798A3 publication Critical patent/WO2005024798A3/fr

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
    • 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
    • G11B7/0901—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 for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/24073—Tracks
    • G11B7/24079—Width or depth

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

Lors de la lecture ou de l'écriture au moyen de points multiples, les points sont alignés. On peut utiliser les deux points aux extrémités extérieures pour localiser avec précision les points restants. Lorsqu'une ligne forme un angle avec la direction d'inscription, il est possible d'obtenir une situation où le modulateur a besoin de considérer uniquement les données déjà présentes dans un seul sillon adjacent, pas dans le deux sillons adjacents, ce qui permet de réduire la complexité du modulateur.
PCT/IB2004/051593 2003-09-11 2004-08-27 Methode de lecture ou d'inscription de sillon, moyen d'enregistrement et graveur de disques optiques WO2005024798A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03103353.3 2003-09-11
EP03103353 2003-09-11

Publications (2)

Publication Number Publication Date
WO2005024798A2 WO2005024798A2 (fr) 2005-03-17
WO2005024798A3 true WO2005024798A3 (fr) 2005-07-28

Family

ID=34259281

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/051593 WO2005024798A2 (fr) 2003-09-11 2004-08-27 Methode de lecture ou d'inscription de sillon, moyen d'enregistrement et graveur de disques optiques

Country Status (2)

Country Link
TW (1) TW200519890A (fr)
WO (1) WO2005024798A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080212448A1 (en) * 2005-05-31 2008-09-04 Koninklijke Philips Electronics, N.V. Optical System
EP1897089A2 (fr) * 2005-05-31 2008-03-12 Koninklijke Philips Electronics N.V. Methode de suivi radial et appareil pour un format de porteuse d'informations optiques presentant des pistes wobulees
KR20080021053A (ko) * 2005-05-31 2008-03-06 코닌클리케 필립스 일렉트로닉스 엔.브이. 가드 밴드들 사이에서 다수의 트랙을 포착하는 광학 데이터기록/재생 시스템
TW200733089A (en) * 2005-08-16 2007-09-01 Koninkl Philips Electronics Nv Optical system with a number of radiation sources

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298974A (en) * 1978-05-10 1981-11-03 Hitachi, Ltd. Optical head for a videodisc player/recorder
EP0313394A2 (fr) * 1987-10-23 1989-04-26 Nippon Conlux Co., Ltd. Méthode et appareil pour l'enregistrement et la reproduction d'information
JPH01256031A (ja) * 1988-04-04 1989-10-12 Nippon Telegr & Teleph Corp <Ntt> 光ディスクのトラッキング方法
US4969137A (en) * 1987-03-20 1990-11-06 Hitachi, Ltd. Optical recording and reproducing apparatus having a multi-spot positioning control mechanism
US5854780A (en) * 1990-02-06 1998-12-29 U.S. Philips Corporation Optical scanning device using a plurality of scanning spots
WO1999046769A1 (fr) * 1998-03-10 1999-09-16 Zen Research N.V. Procedes et appareil de detection et de correction des erreurs d'amplification dans une unite de disque optique a plusieurs faisceaux
US6181666B1 (en) * 1996-10-21 2001-01-30 Olympus Optical Company, Ltd. Optical pickup

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298974A (en) * 1978-05-10 1981-11-03 Hitachi, Ltd. Optical head for a videodisc player/recorder
US4969137A (en) * 1987-03-20 1990-11-06 Hitachi, Ltd. Optical recording and reproducing apparatus having a multi-spot positioning control mechanism
EP0313394A2 (fr) * 1987-10-23 1989-04-26 Nippon Conlux Co., Ltd. Méthode et appareil pour l'enregistrement et la reproduction d'information
JPH01256031A (ja) * 1988-04-04 1989-10-12 Nippon Telegr & Teleph Corp <Ntt> 光ディスクのトラッキング方法
US5854780A (en) * 1990-02-06 1998-12-29 U.S. Philips Corporation Optical scanning device using a plurality of scanning spots
US6181666B1 (en) * 1996-10-21 2001-01-30 Olympus Optical Company, Ltd. Optical pickup
WO1999046769A1 (fr) * 1998-03-10 1999-09-16 Zen Research N.V. Procedes et appareil de detection et de correction des erreurs d'amplification dans une unite de disque optique a plusieurs faisceaux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 004 (P - 986) 9 January 1990 (1990-01-09) *

Also Published As

Publication number Publication date
TW200519890A (en) 2005-06-16
WO2005024798A2 (fr) 2005-03-17

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