EP1994532A4 - Optisches pickup-verfahren und einrichtung für ein mehrschichtiges aufzeichnungsmedium - Google Patents

Optisches pickup-verfahren und einrichtung für ein mehrschichtiges aufzeichnungsmedium

Info

Publication number
EP1994532A4
EP1994532A4 EP05857344A EP05857344A EP1994532A4 EP 1994532 A4 EP1994532 A4 EP 1994532A4 EP 05857344 A EP05857344 A EP 05857344A EP 05857344 A EP05857344 A EP 05857344A EP 1994532 A4 EP1994532 A4 EP 1994532A4
Authority
EP
European Patent Office
Prior art keywords
recording medium
optical pick
multilayer recording
multilayer
pick
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.)
Withdrawn
Application number
EP05857344A
Other languages
English (en)
French (fr)
Other versions
EP1994532A2 (de
Inventor
Eugene Levich
Sergei Magnitskii
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.)
HD2, LIMITED
Original Assignee
HD2 Ltd
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 HD2 Ltd filed Critical HD2 Ltd
Publication of EP1994532A2 publication Critical patent/EP1994532A2/de
Publication of EP1994532A4 publication Critical patent/EP1994532A4/de
Withdrawn legal-status Critical Current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
    • G11B7/12—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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • G11B7/13927—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness
    • 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
    • G11B7/125—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
    • G11B7/127—Lasers; Multiple laser arrays
    • 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
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
    • 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
    • G11B7/0948—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 specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
EP05857344A 2005-12-04 2005-12-04 Optisches pickup-verfahren und einrichtung für ein mehrschichtiges aufzeichnungsmedium Withdrawn EP1994532A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2005/003628 WO2007063353A2 (en) 2005-12-04 2005-12-04 Optical pick-up method and device for multilayer recording medium

Publications (2)

Publication Number Publication Date
EP1994532A2 EP1994532A2 (de) 2008-11-26
EP1994532A4 true EP1994532A4 (de) 2009-11-11

Family

ID=38092610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05857344A Withdrawn EP1994532A4 (de) 2005-12-04 2005-12-04 Optisches pickup-verfahren und einrichtung für ein mehrschichtiges aufzeichnungsmedium

Country Status (3)

Country Link
EP (1) EP1994532A4 (de)
TW (1) TW200847156A (de)
WO (1) WO2007063353A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102146842B1 (ko) 2011-06-09 2020-08-24 케이스 웨스턴 리저브 유니버시티 광학적 정보 스토리지 매체

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526338A (en) * 1995-03-10 1996-06-11 Yeda Research & Development Co. Ltd. Method and apparatus for storage and retrieval with multilayer optical disks

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107483A (en) * 1987-08-19 1992-04-21 Mitsubishi Denki Kabushiki Kaisha Frequency selective optical data record/regenerate apparatus
US5077719A (en) * 1987-08-28 1991-12-31 Fujitsu Limited Optical disk access system
US6153318A (en) * 1996-04-30 2000-11-28 Rothberg; Gerald M. Layered material having properties that are variable by an applied electric field
EP1098300B1 (de) * 1997-01-17 2003-08-13 Matsushita Electric Industrial Co., Ltd. Optischer Abtastkopf und optisches Plattengerät diesen benutzend
US7352660B2 (en) * 2001-01-16 2008-04-01 Gr Intellectual Reserve, Llc Enhanced data storage and retrieval devices and systems and methods for utilizing the same
US7342869B2 (en) * 2002-07-08 2008-03-11 Sony Corporation Optical-recording medium playback apparatus and optical-recording medium, including flying optical head features

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526338A (en) * 1995-03-10 1996-06-11 Yeda Research & Development Co. Ltd. Method and apparatus for storage and retrieval with multilayer optical disks

Also Published As

Publication number Publication date
WO2007063353A3 (en) 2009-04-16
EP1994532A2 (de) 2008-11-26
TW200847156A (en) 2008-12-01
WO2007063353A2 (en) 2007-06-07

Similar Documents

Publication Publication Date Title
TWI316245B (en) Optical pick-up device and the method for recording information by using the device
EP1930886A4 (de) Optisches aufzeichnungsverfahren, optische aufzeichnungseinrichtung, optisches aufzeichnungsmedium und verfarhen zur optischen aufzeichnung/wiedergabe
GB2426623B (en) Apparatus for media recording and playback
PL1615213T3 (pl) Optyczne urządzenie odczytujące i przystosowane do niego optyczne urządzenie zapisujące i/lub odtwarzające
EP1873775A4 (de) Aufzeichnungsmedium, wiedergabeeinrichtung, aufzeichnungsverfahren und wiedergabeverfahren
EP2129108A4 (de) Abbildungsvorrichtung und -verfahren, aufzeichnungsvorrichtung und -verfahren sowie wiedergabevorrichtung und -verfahren
EP1895537A4 (de) Aufzeichnungsvorrichtung, wiedergabevorrichtung, aufzeichnungs-/wiedergabevorrichtung, aufzeichnungsverfahren, wiedergabeverfahren, aufzeichnungs-/wiedergabeverfahren und aufzeichnungsmedium
EG26294A (en) Reading method for recording light data
EP1965275A4 (de) Optisches aufzeichnungsmedium, optische aufzeichnungseinrichtung, optisches aufzeichnungsverfarhen und optisches wiedergabeverfahren
HK1161414A1 (en) Reproducing device for optical type recording medium, and reproducing method for optical type recording medium
EP2057628A4 (de) Einmal beschreibbares, mehrmals lesbares optisches aufzeichnungsmedium und aufzeichnungsverfahren dafür
EP2006844A4 (de) Aufzeichnungs-wiedergabeverfahren, aufzeichnungsmedium und aufzeichnungs-/wiedergabeeinrichtung
EP1873777A4 (de) Aufnahmeanordnung und aufnahmeverfahren für eine zweilagige diskette
EP1950758A4 (de) Optisches informationsaufzeichnungsmedium und verfahren zu seiner herstellung
EP1868185A4 (de) Aufzeichnungseinrichtung für optische datenträger, verfahren zum aufzeichnen von daten auf einem optischen datenträger und optischer datenträger
TWI348156B (en) Optical recording method and optical recoridng regeneration device
EP2150954A4 (de) Optischer lesekopf, aufzeichnungs-/wiedergabevorrichtung und aufzeichnungs-/wiedergabeverfahren
EP2013876A4 (de) Optische aufzeichnungsmedien und aufzeichnungs-/wiedergabeverfahren und vorrichtungen dafür
EP1909269A4 (de) Optisches aufzeichnungsverfahren, optische aufzeichnungseinrichtung und optisches aufzeichnungsmedium
EP1851763A4 (de) Optisches aufzeichnungsmedium und dieses verwendendes aufzeichnungs- und wiedergabeverfahren
PT1847989E (pt) Suporte de gravação de disco óptico, dispositivo de reprodução e dispositivo e método de gravação e método para o suporte de gravação
EP2054889A4 (de) Beschreibbares optisches aufzeichnungsmedium und aufzeichnungsverfahren dafür
HK1118937A1 (en) Method for reproducing optical disc signal, and optical disc device
EP2077555A4 (de) Mehrschichtiges datenaufzeichnungsmedium und verfahren zu dessen herstellung
EP1771842A4 (de) Optisches aufzeichnungsmedium und aufzeichungsmethode

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080925

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HD2, LIMITED

R17D Deferred search report published (corrected)

Effective date: 20090416

RIC1 Information provided on ipc code assigned before grant

Ipc: G11B 7/125 20060101ALI20090612BHEP

Ipc: G11B 7/00 20060101AFI20090612BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20091013

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090617