WO2004017306A3 - Hybrid optical disc utilising a dvd and a cd layer - Google Patents

Hybrid optical disc utilising a dvd and a cd layer Download PDF

Info

Publication number
WO2004017306A3
WO2004017306A3 PCT/EP2003/008932 EP0308932W WO2004017306A3 WO 2004017306 A3 WO2004017306 A3 WO 2004017306A3 EP 0308932 W EP0308932 W EP 0308932W WO 2004017306 A3 WO2004017306 A3 WO 2004017306A3
Authority
WO
WIPO (PCT)
Prior art keywords
data recording
dvd
disc body
recording surface
utilising
Prior art date
Application number
PCT/EP2003/008932
Other languages
French (fr)
Other versions
WO2004017306A2 (en
Inventor
Joseph Hayes
Original Assignee
Dierks Dieter
Joseph Hayes
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 Dierks Dieter, Joseph Hayes filed Critical Dierks Dieter
Priority to AU2003269866A priority Critical patent/AU2003269866A1/en
Priority to EP03750410A priority patent/EP1530792A2/en
Publication of WO2004017306A2 publication Critical patent/WO2004017306A2/en
Publication of WO2004017306A3 publication Critical patent/WO2004017306A3/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
    • G11B7/24—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
    • 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

Abstract

The application shows a two sided hybrid disc comprising a CD disc body and a DVD disc body which disc bodies have different thicknesses. The CD disc body has a data recording surface and a flat outer surface through which the opposite data recording surface is viewable by a scanning laser. A target material layer deposits on the data recording surface of the DVD disc body. The DVD disc body has a data recording surface, and a flat outer surface through which the opposite date recoding surface is viewable by a scanning laser. A target material layer deposits on the data recording surface of the DVD disc body. The two disc bodies are fixed together with their data recording surfaces facing each other by an adhesive layer.
PCT/EP2003/008932 2002-08-14 2003-08-12 Hybrid optical disc utilising a dvd and a cd layer WO2004017306A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003269866A AU2003269866A1 (en) 2002-08-14 2003-08-12 Hybrid optical disc utilising a dvd and a cd layer
EP03750410A EP1530792A2 (en) 2002-08-14 2003-08-12 Hybrid optical disc utilising a dvd and a cd layer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2002950808A AU2002950808A0 (en) 2002-08-14 2002-08-14 Hybrid in spec optical disc utilising a dvd and a cd layer
AU2002950808 2002-08-14

Publications (2)

Publication Number Publication Date
WO2004017306A2 WO2004017306A2 (en) 2004-02-26
WO2004017306A3 true WO2004017306A3 (en) 2004-03-25

Family

ID=27809894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/008932 WO2004017306A2 (en) 2002-08-14 2003-08-12 Hybrid optical disc utilising a dvd and a cd layer

Country Status (3)

Country Link
EP (1) EP1530792A2 (en)
AU (1) AU2002950808A0 (en)
WO (1) WO2004017306A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10351166A1 (en) 2003-11-03 2005-06-16 Stefan Schreiber Hybrid optical disc with modified CD layer
JP4400342B2 (en) * 2004-07-02 2010-01-20 コニカミノルタオプト株式会社 Objective lens and optical pickup device
JP2015197936A (en) * 2014-03-31 2015-11-09 ソニー株式会社 Optical recording medium and manufacturing method of the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08297859A (en) * 1995-04-24 1996-11-12 Sony Disc Technol:Kk Optical disk
WO1998038637A1 (en) * 1997-02-28 1998-09-03 Wea Manufacturing, Inc. Two-sided hybrid dvd-cd disc
DE29914540U1 (en) * 1999-08-19 1999-10-21 Sonopress Prod Disc-shaped optical data carrier with information layer on both sides
WO2001011617A1 (en) * 1999-08-05 2001-02-15 Tocano A/S Combined compact disc/digital versatile disc product

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08297859A (en) * 1995-04-24 1996-11-12 Sony Disc Technol:Kk Optical disk
WO1998038637A1 (en) * 1997-02-28 1998-09-03 Wea Manufacturing, Inc. Two-sided hybrid dvd-cd disc
WO2001011617A1 (en) * 1999-08-05 2001-02-15 Tocano A/S Combined compact disc/digital versatile disc product
DE29914540U1 (en) * 1999-08-19 1999-10-21 Sonopress Prod Disc-shaped optical data carrier with information layer on both sides

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31) *

Also Published As

Publication number Publication date
EP1530792A2 (en) 2005-05-18
WO2004017306A2 (en) 2004-02-26
AU2002950808A0 (en) 2002-09-12

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