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WO2004025627A3 - Apparatus and method for scanning an information track and record carrier - Google Patents

Apparatus and method for scanning an information track and record carrier Download PDF

Info

Publication number
WO2004025627A3
WO2004025627A3 PCT/IB2003/003761 IB0303761W WO2004025627A3 WO 2004025627 A3 WO2004025627 A3 WO 2004025627A3 IB 0303761 W IB0303761 W IB 0303761W WO 2004025627 A3 WO2004025627 A3 WO 2004025627A3
Authority
WO
WIPO (PCT)
Prior art keywords
polarity
push
pull signal
mode
scanning
Prior art date
Application number
PCT/IB2003/003761
Other languages
French (fr)
Other versions
WO2004025627A2 (en
Inventor
Hubert C F Martens
Benno Tieke
Johannes H M Spruit
Original Assignee
Koninkl Philips Electronics Nv
Hubert C F Martens
Benno Tieke
Johannes H M Spruit
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, Hubert C F Martens, Benno Tieke, Johannes H M Spruit filed Critical Koninkl Philips Electronics Nv
Priority to AU2003255980A priority Critical patent/AU2003255980A1/en
Publication of WO2004025627A2 publication Critical patent/WO2004025627A2/en
Publication of WO2004025627A3 publication Critical patent/WO2004025627A3/en

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
    • G11B7/125—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
    • G11B7/1263—Power control during transducing, e.g. by monitoring
    • 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
    • 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
    • G11B19/127—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving detection of the number of sides, e.g. single or double, or layers, e.g. for multiple recording or reproducing 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00456—Recording strategies, e.g. pulse sequences
    • 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
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • 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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24038—Multiple laminated recording layers

Landscapes

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

Abstract

In order to follow an information track (1) on an information carrier (2), a push-pull signal (PP) is generated. The polarity of the push-pull signal (PP) is different for different types of information carriers (2). Tracking means (8) should react differently to a push-pull signal (PP) with a positive polarity than to a push-pull signal (PP) with a negative polarity. The invention described is a method for scanning an information track (1) by determining the polarity of the push-pull signal (PP) first and putting the tracking means (8) in a first or second mode dependent on the polarity of the push-pull signal (PP). In the first mode the tracking means (8) react differently to the push-pull signal than in the second mode. The determination of the polarity of the push-pull signal (PP) can be done in several ways. The polarity can be stored on the information carrier (2), and the polarity determining means (9) read the polarity from the information carrier (2). Alternatively, the polarity determining means (9) can determine the polarity by directing the tracking means (8) to operate in the first and second mode subsequently, and check in which mode the scanning-location (6) was on-track.
PCT/IB2003/003761 2002-09-11 2003-08-21 Apparatus and method for scanning an information track and record carrier WO2004025627A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003255980A AU2003255980A1 (en) 2002-09-11 2003-08-21 Apparatus and method for scanning an information track and record carrier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02078718.0 2002-09-11
EP02078718 2002-09-11

Publications (2)

Publication Number Publication Date
WO2004025627A2 WO2004025627A2 (en) 2004-03-25
WO2004025627A3 true WO2004025627A3 (en) 2004-06-03

Family

ID=31985077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/003761 WO2004025627A2 (en) 2002-09-11 2003-08-21 Apparatus and method for scanning an information track and record carrier

Country Status (4)

Country Link
CN (1) CN101154397A (en)
AU (1) AU2003255980A1 (en)
WO (1) WO2004025627A2 (en)
ZA (1) ZA200500211B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006006089A1 (en) * 2004-07-07 2006-01-19 Koninklijke Philips Electronics N.V. Drive comprising means for determining the tracking polarity of a record carrier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02270140A (en) * 1989-04-12 1990-11-05 Canon Inc Optical information recording and reproducing device
US5539710A (en) * 1992-02-28 1996-07-23 Hitachi, Ltd. Video optical disk system compatible with both read only and writable optical disks having the same recording format
EP0753845A1 (en) * 1995-01-31 1997-01-15 Sony Corporation Device for reproducing optical recording medium
US5848050A (en) * 1996-02-13 1998-12-08 Mitsubishi Denki Kabushiki Kaisha Optical disk having a continuous recording track formed of alternating land and groove revolutions
EP0905683A2 (en) * 1997-09-26 1999-03-31 Matsushita Electric Industrial Co., Ltd. Optical disk device and optical disk
EP0996124A1 (en) * 1998-10-22 2000-04-26 Hitachi, Ltd. Optical disk and recording/reproduction apparatus using the same
WO2001045096A1 (en) * 1999-12-15 2001-06-21 Koninklijke Philips Electronics N.V. Optical record carrier and scanning device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02270140A (en) * 1989-04-12 1990-11-05 Canon Inc Optical information recording and reproducing device
US5539710A (en) * 1992-02-28 1996-07-23 Hitachi, Ltd. Video optical disk system compatible with both read only and writable optical disks having the same recording format
EP0753845A1 (en) * 1995-01-31 1997-01-15 Sony Corporation Device for reproducing optical recording medium
US5848050A (en) * 1996-02-13 1998-12-08 Mitsubishi Denki Kabushiki Kaisha Optical disk having a continuous recording track formed of alternating land and groove revolutions
EP0905683A2 (en) * 1997-09-26 1999-03-31 Matsushita Electric Industrial Co., Ltd. Optical disk device and optical disk
EP0996124A1 (en) * 1998-10-22 2000-04-26 Hitachi, Ltd. Optical disk and recording/reproduction apparatus using the same
WO2001045096A1 (en) * 1999-12-15 2001-06-21 Koninklijke Philips Electronics N.V. Optical record carrier and scanning device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 030 (P - 1157) 24 January 1991 (1991-01-24) *

Also Published As

Publication number Publication date
WO2004025627A2 (en) 2004-03-25
AU2003255980A8 (en) 2004-04-30
ZA200500211B (en) 2006-03-29
AU2003255980A1 (en) 2004-04-30
CN101154397A (en) 2008-04-02

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