DE602005007040D1 - Fokussteuerung für ein medienabtastsystem - Google Patents

Fokussteuerung für ein medienabtastsystem

Info

Publication number
DE602005007040D1
DE602005007040D1 DE602005007040T DE602005007040T DE602005007040D1 DE 602005007040 D1 DE602005007040 D1 DE 602005007040D1 DE 602005007040 T DE602005007040 T DE 602005007040T DE 602005007040 T DE602005007040 T DE 602005007040T DE 602005007040 D1 DE602005007040 D1 DE 602005007040D1
Authority
DE
Germany
Prior art keywords
signal
focus
radiation
focus control
detector
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 - Fee Related
Application number
DE602005007040T
Other languages
English (en)
Inventor
Jeroen A Raaymakers
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602005007040D1 publication Critical patent/DE602005007040D1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4071—Printing on disk-shaped media, e.g. CDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
    • 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
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
DE602005007040T 2004-08-23 2005-08-19 Fokussteuerung für ein medienabtastsystem Expired - Fee Related DE602005007040D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP04104044 2004-08-23
EP04104116 2004-08-27
EP04106346 2004-12-07
PCT/IB2005/052738 WO2006021919A1 (en) 2004-08-23 2005-08-19 Focus control for a medium scanning system

Publications (1)

Publication Number Publication Date
DE602005007040D1 true DE602005007040D1 (de) 2008-07-03

Family

ID=35385443

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005007040T Expired - Fee Related DE602005007040D1 (de) 2004-08-23 2005-08-19 Fokussteuerung für ein medienabtastsystem

Country Status (8)

Country Link
US (1) US20090022033A1 (de)
EP (1) EP1784823B1 (de)
JP (1) JP2008511093A (de)
KR (1) KR20070053294A (de)
AT (1) ATE396475T1 (de)
DE (1) DE602005007040D1 (de)
TW (1) TW200623834A (de)
WO (1) WO2006021919A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090024955A (ko) * 2007-09-05 2009-03-10 삼성전자주식회사 광디스크 장치의 서보 제어 방법 및 그 방법을 이용하는서보 제어 장치
TWI368220B (en) * 2008-06-26 2012-07-11 Sunplus Technology Co Ltd Optical storage system and spherical aberration compensation apparatus and method thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497055A (en) * 1978-01-17 1979-07-31 Mitsubishi Electric Corp Automatic focusing device
US4879708A (en) * 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using wobbled pits
US4879707A (en) * 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using discontinuities
JP2642672B2 (ja) * 1988-06-29 1997-08-20 富士通株式会社 光ディスク装置
JP3834831B2 (ja) * 1995-03-20 2006-10-18 ソニー株式会社 対物レンズ駆動装置及びこの対物レンズ駆動装置を用いた光ピックアップ装置
JPH113531A (ja) * 1997-04-18 1999-01-06 Pioneer Electron Corp チルトサーボ制御装置
TW396337B (en) * 1998-02-13 2000-07-01 Mediatek Inc The automatic regulating device of cdrom optimum focusing spot and the method thereof
JP2001023194A (ja) * 1999-03-15 2001-01-26 Rohm Co Ltd 光ディスク再生装置
CA2333179C (en) * 1999-03-15 2007-02-06 Matsushita Electric Industrial Co., Ltd. Convergent device, optical head, optical information recording/reproducing and optical information recording/reproducing method
US6490234B1 (en) * 1999-03-15 2002-12-03 Rohm Co., Ltd. Optical disk reproducing device
US7268794B2 (en) * 2000-10-30 2007-09-11 Yamaha Corporation Method of printing label on optical disk, optical disk unit, and optical disk
US20020081413A1 (en) * 2000-12-27 2002-06-27 Wea Manufacturing Inc. Indelible watermark on optical discs
JP3778133B2 (ja) * 2002-05-31 2006-05-24 ヤマハ株式会社 光ディスク記録装置および画像形成方法
JP3846373B2 (ja) * 2002-06-28 2006-11-15 ヤマハ株式会社 光ディスク記録方法、光ディスク記録プログラム、及び光ディスク記録装置
US7671880B2 (en) * 2003-01-17 2010-03-02 Hewlett-Packard Development Company, L.P. Optical disk labeling system and method

Also Published As

Publication number Publication date
TW200623834A (en) 2006-07-01
US20090022033A1 (en) 2009-01-22
KR20070053294A (ko) 2007-05-23
ATE396475T1 (de) 2008-06-15
EP1784823B1 (de) 2008-05-21
JP2008511093A (ja) 2008-04-10
WO2006021919A1 (en) 2006-03-02
EP1784823A1 (de) 2007-05-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee