WO1999041738A1 - Support de donnees pour lecture optique a usage limite - Google Patents

Support de donnees pour lecture optique a usage limite Download PDF

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Publication number
WO1999041738A1
WO1999041738A1 PCT/US1999/002406 US9902406W WO9941738A1 WO 1999041738 A1 WO1999041738 A1 WO 1999041738A1 US 9902406 W US9902406 W US 9902406W WO 9941738 A1 WO9941738 A1 WO 9941738A1
Authority
WO
WIPO (PCT)
Prior art keywords
dyes
layer
photochromic material
substrate
transparent
Prior art date
Application number
PCT/US1999/002406
Other languages
English (en)
Inventor
Terrence B. Mazer
Original Assignee
Mazer Terrence B
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 Mazer Terrence B filed Critical Mazer Terrence B
Priority to AU25822/99A priority Critical patent/AU2582299A/en
Publication of WO1999041738A1 publication Critical patent/WO1999041738A1/fr

Links

Classifications

    • 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
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/281—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs by changing the physical properties of the record carrier
    • G11B23/282—Limited play
    • 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
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers

Definitions

  • This invention relates to a limited use optical playback device such as a compact disk.
  • the invention relates to the inclusion of a low energy photochromic
  • CD compact disk
  • Read-Only means that one can only view the contents of the CD-ROM; the information on
  • a CD is a medium on which large amounts
  • Standard CD's can be viewed as a very large, write- protected
  • CD player the fastest growing consumer electronics product ever introduced.
  • the consumer may use the software indefinitely or until the
  • a photochromic material is one which is capable of changing color on
  • photochromic material is initially opaque, thus absorbing the writing radiation and is either
  • radiation sources e.g., lasers or light emitting diodes, to obtain a colored state thereof.
  • a substrate having disposed thereon, partially or over its entirety, a film
  • the film is changed from its colorless state to
  • the reading radiation thus converts the readable CD into a non-readable
  • the present invention relates to an optically readable device, such as
  • the data can be audio, visual,
  • the chemical means for example, will render the data
  • the substrate securing a layer of photosensitive material within the substrate, the
  • photosensitive material being of a predetermined thickness to allow proper focusing of the
  • the photosensitive material being substantially transparent
  • the layer of photosensitive material adapted to darken after a predetermined number of plays of
  • the photosensitive substrate is formed over the pits and land of the substrate.
  • the transparent substrate layer having top and underside portions, the transparent substrate layer having predetermined pits
  • a reflective metal layer over the pits and lands of the transparent substrate
  • photosensitive/photochromic material is transparent when secured to the CD and adapted to
  • the photochromic material may be selected from the group consisting of:
  • photosensitive material darkens to prevent proper reading of the CD.
  • Figure 1 is a partial cross section of a conventional compact disk illustrating the layers
  • Figure 2 is a graphical depiction of one embodiment of the invention.
  • Figure 3 is a graphical depiction of a second embodiment of the invention.
  • Figure 4 is a block diagram of one embodiment of an electrical circuit that may be
  • the present invention may be applied equally to:
  • Figure 1 illustrates the layers found in a traditional audio compact disk.
  • compact disk has a transparent substrate layer (e.g. polycarbonate) 10, a reflective layer
  • compact disks contains "pits" 18 and "lands” 20 in a predetermined pattern in the substrate
  • a compact disk contains a long string of pits 18 written helically on the disk. Each pit
  • Audio data is converted into digital form to be placed on a compact disk by the steps
  • PCM pulse code modulation
  • the pits 18 and lands 20 are covered by a reflective metal layer 12 such as aluminum.
  • a light source e.g. a diode laser
  • the photodetector will receive no signal or a weak signal. Accordingly, the photodetector
  • i analog-to-digital converter in the compact disk device converts the series of pulses back
  • the analog audio signal can be
  • disc specifications e.g. transparent substrate having a refraction index of
  • recording area is 46 mm -117 mm
  • rotational speed e.g. 1.2-1.4 m/sec
  • the size of the light spot on the disc surface is about 800 micrometers in diameter
  • typical CD player laser in air is about 780 nanometers while inside the polycarbonate
  • the laser's wavelength is about 500 nanometers.
  • the laser's wavelength is 650 and 635 nanometers.
  • DVD are better suited to reading the smaller, more densely packed pits.
  • the present invention provides a way of configuring the compact disk so that it is
  • the present invention is not limited to such mediums.
  • the present invention also provides an electrical method of configuring compact
  • the compact disk is configured so that after a number of readings, an electrical element
  • the electrical element alters the control
  • This goal is accomplished through the adulteration of at least a
  • Figures 2 and 3 illustrate graphical depictions of the layers for a compact disk
  • invention for traditional audio disks
  • a transparent substrate for traditional audio disks
  • the reflective metal layer 12 (again for a traditional CD medium) or the layer of
  • photochromic material 30 may be secured to said underside 34 (see Figure 1) of the
  • the layer of photochromic material 30 may be placed over varying
  • the material 30 may be placed over the entire surface of the substrate 10,
  • the material 30 may be placed
  • substrate 10 surface to be covered may vary on the cost constraints and the portions of data to
  • the photochromic material 30 used is preferably a photosensitive material that at least
  • the reading radiation includes the
  • the photochromic material 30 is adapted so that the material 30 will darken after a
  • predetermined number of exposures exposure time
  • the photochromic material 30 is placed on the underside 34 of the substrate 10 of a non DVD,
  • the material must be reactive to light with a wavelength of 780 nanometers while it will be
  • the CD may only be played a predetermined number of times before the layer
  • photochromic material 30 darkens to impede proper reading of the CD.
  • the photochromic material 30 must be adapted to adhere to the substrate 10, and it
  • optically readable medium i.e., CD
  • AlGaAs aluminum gallium arsenide
  • the DVD's will use a laser wavelength of 650 and 635 nm
  • invention relates to the placement of the photochromic material, wherein, in one embodiment,
  • the photochromic material is placed just above the reflective material in the form of a layer or
  • the photochromic material is placed on the outside of the
  • the photochromic material will be dispersed in a
  • the reading radiation wavelength will change.
  • the photochromic material is
  • the photochromic material will be photoreactive material
  • Photoreactive systems typically, but not always, require an amplification step where
  • electromagnetic spectrum including the near infrared region.
  • the photochromic compound can, for example, be based upon the cis-trans
  • amphipathic compound is preferably in a monomolecular film
  • the indigo derivative is 4-monostearoylazobezene
  • the indigo derivative is N,N'-distearoylindigo
  • the indigo derivative is N,N'-distearoylindigo
  • thioindigo derivative is 5'-octadecyl-5-t-butylthioindigo and/or 5-octadecyl-l,8-
  • the photochromic material is composed in such a way that it has
  • the level of transmittance and absorbence can be any level of transmittance and absorbence.
  • the photochromic material will have reflectance of no more than
  • the thickness of the layer can range from 5-400 nm depending upon the number of
  • thickness of the photochromic layer can range from 10-200 nm.
  • the reading radiation converts the photochromic or photoreactive material
  • the photoreactive material allows the metallized layer to reflect the laser light and while
  • portion of the CD in contact with the photochromic material unreadable.
  • the photoreactive layer will demonstrate durability, reliability and longevity against heat
  • Another means of accomplishing the goal of this invention is to use a thermal
  • the photoreactive material can be any suitable photoreactive material.
  • One approach to a useful photosensitive material is a photochromic material that has
  • crystals are doped with copper ions and/or another sensitizer selected from mild reducing
  • accelerants include ions from the group of cobalt, chromium, manganese, magnesium and
  • rare earth metals such as cerium, samarium and europium.
  • a light sensitive film forming solution is obtained by preparing a dilute polymer
  • a typical film having high concentrations of the photochromies can be obtained.
  • a typical film having high concentrations of the photochromies can be obtained.
  • forming solution used in the present invention is prepared by dissolving 240 mg of
  • the colorless photoreactive layer is then exposed to a 300 nanosecond pulsed laser
  • the organic dye melts, vaporizes, sublimes, deforms or changes in
  • encodes reading parameters is covered with an opaque dye, thereby initially preventing the
  • the bleaching of the dye allows the CD player to read the information previously covered.
  • Photo-bleaching or photolysis can be accomplished through combining known dyes
  • the dye is reduced or oxidized as a result of absorbing radiation.
  • useful dyes are chosen for their respective compatibilities with binders, for high abso ⁇ tivity
  • (TeO x ) can be sensitized to the reading frequency to convert from substantially transparent to
  • fluoride compounds such as BiF 3 , MgF 2 , PbF 2 , LiF, CeF 3 , AgF,
  • the film thickness of these compounds can range from
  • iodine compound is at least one compound selected from copper
  • Another example of a useful photoreactive material in the present invention is a
  • the rhodamine photoreactive materials as they presently exist, are
  • rhodamine dye can shift the effective wavelength to about 800 nm.
  • organic dyes are able to form an aggregate of several dye molecules under certain
  • a dimer useful in this invention include a dimer, a J-aggregate, a H-aggregate and composite materials
  • the dyes capable of forming J-aggregates include the photochromic dyes.
  • the typical photochromic dyes include the photochromic dyes.
  • a most interesting photoreactive material useful in the present invention is a metal
  • a binder of polymeric material such as gelatin or applied
  • a near infrared absorbent (optionally including a metal azide) is then placed adjacent the color
  • the reading radiation causes the generation of heat by the absorbent layer which in
  • the photoreactive material may comprise a
  • the free radical generating compound may be activated
  • compound can be selected from azo compounds, diacryl peroxides, dialkyl peroxides,
  • hydroperoxides sulfur compounds, carbonyl compounds, halogen compounds, reducing dyes
  • organometallic compounds and persulfates are organometallic compounds and persulfates.
  • the photoreactive layer comprises at least one type of liquid
  • PDLCs polymer dispersed liquid crystals
  • polymers can be used to hold the liquid crystal, for example, polyvinylpyrrolidone (PVP).
  • PVP polyvinylpyrrolidone
  • PDLCs are made by dispersing the nematic material E7 in the PVP polymer binder.
  • PDLC is then placed between two substrates and integrated into the CD.
  • the spirobenzothiopyran prepolymer is typically used in a quantity of 1-50 parts by weight
  • liquid crystal prepolymer based on 100 parts by weight of the liquid crystal prepolymer.
  • the photoreactive material according to the invention may also be a liquid crystalline
  • the liquid crystal polymer has side chain groups provided with molecular rotation power or
  • dye compound are induced or disassociation and separation of the dye compound from the
  • the first is accuracy.
  • a supplier of limited read CD's must be assured that
  • the present invention can be accommodated into any of the known processes for
  • a spin-coating method is generally preferred for easy film formation
  • suitable solvents include; aliphatic or alicyclic hydrocarbons such as hexane, heptane, octane,
  • non-polar ether solvents such as diethyl ether, dibutyl ether and the
  • polar alcohol solvents such as methyl alcohol, ethyl alcohol, allyl alcohol, cellosolve and
  • the photosensitive material/solvent mixture may also include binders such as resins
  • the photoreactive material can also be applied to CD structure by means of dip-
  • the photosensitive material is dispersed within the photosensitive material
  • the photosensitized material may or may not be copolymerized
  • an electric circuit may be used to control
  • Figure 4 illustrates an example block diagram of one embodiment of an
  • the circuit is bonded to the polycarbonate substrate surface.
  • the circuit should be bonded to the polycarbonate substrate surface.
  • the photodiode should be placed so as not to interfere with the playing of the CD, the photodiode should be
  • a photodiode 40 detects the radiation from the laser as
  • the photodiode 40 detects the radiation from the laser and
  • the photodiode 40 is adapted to detect the
  • the signal is preferably amplified and fed into an input of a counter circuit 42.
  • the counter 42 The counter 42,
  • the counter 42 outputs are used to initiate a predetermined count (i.e., CD plays).
  • optical disk unreadable or unusable. For example, a predetermined number
  • the means for interfering with the reading radiation 44 of the CD light may be a
  • liquid crystal layer sandwiched between the other layers of the CD.
  • the liquid crystal layer sandwiched between the other layers of the CD.
  • the light from the reading laser is scattered by the orientation of the liquid crystals (i.e.,
  • Transparent electrodes as known in the art may be used to conduct electric signals to the
  • the means in another embodiment, the means
  • Figure 4 is powered by a battery 50.
  • the means for the interfering is powered by a battery 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

Disque compact à usage limité, pour lequel la lecture est limitée à un certain nombre de fois. Cette caractéristique de lecture limitée est obtenue à l'aide d'une matière photochrome (30) ou d'un moyen électrique (44). La matière photochrome (30) ou le moyen électrique (44) rend illisible ou inutilisable au moins une partie des données contenues sur le disque optique. Des procédés de fabrication desdits disques compact à lecture limitée sont également décrits.
PCT/US1999/002406 1998-02-11 1999-02-04 Support de donnees pour lecture optique a usage limite WO1999041738A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25822/99A AU2582299A (en) 1998-02-11 1999-02-04 Limited use optical playback device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2177698A 1998-02-11 1998-02-11
US09/021,776 1998-02-11

Publications (1)

Publication Number Publication Date
WO1999041738A1 true WO1999041738A1 (fr) 1999-08-19

Family

ID=21806090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/002406 WO1999041738A1 (fr) 1998-02-11 1999-02-04 Support de donnees pour lecture optique a usage limite

Country Status (2)

Country Link
AU (1) AU2582299A (fr)
WO (1) WO1999041738A1 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001004887A1 (fr) * 1999-07-12 2001-01-18 Flexplay Technologies, Inc. Supports optiques jetables et procede de fabrication
WO2001088921A1 (fr) * 2000-05-18 2001-11-22 3Lfants Limited Dispositif de securite et article comprenant un tel dispositif
WO2002049010A2 (fr) * 2000-12-11 2002-06-20 Spectradisc Corporation Procede permettant de rendre resistante a la lumiere une couche superficielle d'un disque a lecture limitee
WO2003090221A1 (fr) * 2002-04-22 2003-10-30 General Electric Company Support de stockage de donnees a duree de lecture limitee et procede permettant de limiter l'acces audites donnees
US6641886B1 (en) 1999-03-23 2003-11-04 Flexplay Technologies, Inc. Directory read inhibitor for optical storage media
WO2004010426A2 (fr) * 2002-07-23 2004-01-29 General Eletric Company Supports optiques a lecture limitee presentant une plus longue duree de conservation et une meilleure aptitude a la lecture
EP1395984A2 (fr) * 2001-06-05 2004-03-10 Flexplay Technologies, Inc. Dispositifs optiques a duree de lecture limitee avec couche reactive interstitielle et leurs procedes de fabrication
EP1411507A2 (fr) * 2002-10-17 2004-04-21 U-Tech Media Corp. Support de stockage optique avec temps de lecture limité
WO2004044911A2 (fr) * 2002-11-11 2004-05-27 D.M.S. Dynamic Media Solutions Ltd. Procede et dispositif pour empecher l'utilisation d'un support optique non original
EP1547054A1 (fr) * 2002-09-26 2005-06-29 Verification Technologies, Inc. Authentification d'articles utilisant des materiaux transitoires modifiant l'etat optique
US6917579B2 (en) 1999-03-23 2005-07-12 Flexplay Technologies, Inc. Limited play optical devices with interstitial reactive layer and methods of making same
WO2006075305A1 (fr) * 2005-01-17 2006-07-20 Koninklijke Philips Electronics N.V. Support de donnees a acces limite
EP1685561A2 (fr) * 2003-08-15 2006-08-02 Verificatin Technologies, Inc Teintures reagissant au laser pour systeme de protection contre la copie de disques polyvalents numeriques (dvd)
WO2006130496A1 (fr) * 2005-05-27 2006-12-07 Consumable Media Llc Disques optiques a nombre de lectures limite
WO2007025076A2 (fr) 2005-08-24 2007-03-01 Sony Dadc Us Inc. Possibilite de play-back selective de contenu sur un support optique
EP1816647A2 (fr) * 2006-02-01 2007-08-08 Wellen Sham Support d'enregistrement à lecture unique
EP1917597A2 (fr) * 2005-08-24 2008-05-07 Sony Dadc Us Inc. Possibilite de play-back selective de contenu sur un support optique
EP1955328A1 (fr) * 2005-11-21 2008-08-13 General Electric Company Article optique possédant une caractéristique antivol et système et procédé permettant d'empecher le vol de celui-ci
WO2008114193A2 (fr) * 2007-03-22 2008-09-25 Koninklijke Philips Electronics N.V. Boîtier de stockage pour disque optique
US7438184B2 (en) 2002-05-14 2008-10-21 Flexplay Technologies, Inc. Controlled-environment package for limited-play optical disc
EP1993824A2 (fr) * 2006-01-10 2008-11-26 Verification Technologies, Inc Support d'enregistrement numérique à données protégées
US7653919B2 (en) * 2005-11-21 2010-01-26 General Electric Company Optical article having anti-theft feature and a system and method for inhibiting theft of same
US7892618B2 (en) 2005-03-21 2011-02-22 Sony Corporation Deterring theft of optical media
US8258481B2 (en) 2005-04-25 2012-09-04 Sony Dadc Us Inc. System and method for selectively enabling or disabling an optical device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453968A (en) * 1989-09-21 1995-09-26 U.S. Philips Corporation Methods of and information recording devices for recording and/or inhibiting recording of an information signal having copy bits with logic values which alternate in accordance with a pattern
US5513260A (en) * 1994-06-29 1996-04-30 Macrovision Corporation Method and apparatus for copy protection for various recording media
US5815484A (en) * 1995-12-28 1998-09-29 Hide And Seek Technologies L.L.C. Copy protectable optical media device and methodology therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453968A (en) * 1989-09-21 1995-09-26 U.S. Philips Corporation Methods of and information recording devices for recording and/or inhibiting recording of an information signal having copy bits with logic values which alternate in accordance with a pattern
US5513260A (en) * 1994-06-29 1996-04-30 Macrovision Corporation Method and apparatus for copy protection for various recording media
US5815484A (en) * 1995-12-28 1998-09-29 Hide And Seek Technologies L.L.C. Copy protectable optical media device and methodology therefor

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6641886B1 (en) 1999-03-23 2003-11-04 Flexplay Technologies, Inc. Directory read inhibitor for optical storage media
US6917579B2 (en) 1999-03-23 2005-07-12 Flexplay Technologies, Inc. Limited play optical devices with interstitial reactive layer and methods of making same
WO2001004887A1 (fr) * 1999-07-12 2001-01-18 Flexplay Technologies, Inc. Supports optiques jetables et procede de fabrication
WO2001088921A1 (fr) * 2000-05-18 2001-11-22 3Lfants Limited Dispositif de securite et article comprenant un tel dispositif
WO2002049010A3 (fr) * 2000-12-11 2002-08-29 Spectradisc Corp Procede permettant de rendre resistante a la lumiere une couche superficielle d'un disque a lecture limitee
WO2002049010A2 (fr) * 2000-12-11 2002-06-20 Spectradisc Corporation Procede permettant de rendre resistante a la lumiere une couche superficielle d'un disque a lecture limitee
AU2002239592C1 (en) * 2000-12-11 2008-04-17 Flexplay Technologies, Inc Lightfast limited replay disk and method of use
AU2002239592B2 (en) * 2000-12-11 2007-10-25 Flexplay Technologies, Inc Lightfast limited replay disk and method of use
EP1395984A2 (fr) * 2001-06-05 2004-03-10 Flexplay Technologies, Inc. Dispositifs optiques a duree de lecture limitee avec couche reactive interstitielle et leurs procedes de fabrication
US6756103B2 (en) 2001-06-05 2004-06-29 Flexplay Technologies, Inc. Limited play optical devices with interstitial reactive layer and methods of making same
EP1395984A4 (fr) * 2001-06-05 2007-08-15 Flexplay Technologies Inc Dispositifs optiques a duree de lecture limitee avec couche reactive interstitielle et leurs procedes de fabrication
US7177261B2 (en) 2001-06-05 2007-02-13 Flexplay Technologies, Inc. Limited play optical devices with interstitial reactive layer and methods of making same
WO2003090221A1 (fr) * 2002-04-22 2003-10-30 General Electric Company Support de stockage de donnees a duree de lecture limitee et procede permettant de limiter l'acces audites donnees
US7438184B2 (en) 2002-05-14 2008-10-21 Flexplay Technologies, Inc. Controlled-environment package for limited-play optical disc
CN100342437C (zh) * 2002-07-23 2007-10-10 通用电气公司 具有改善的储存寿命和播放性能的有限播放光学介质
WO2004010426A2 (fr) * 2002-07-23 2004-01-29 General Eletric Company Supports optiques a lecture limitee presentant une plus longue duree de conservation et une meilleure aptitude a la lecture
WO2004010426A3 (fr) * 2002-07-23 2005-01-13 Gen Electric Supports optiques a lecture limitee presentant une plus longue duree de conservation et une meilleure aptitude a la lecture
EP1547054A4 (fr) * 2002-09-26 2010-01-20 Verification Technologies Inc Authentification d'articles utilisant des materiaux transitoires modifiant l'etat optique
EP1547054A1 (fr) * 2002-09-26 2005-06-29 Verification Technologies, Inc. Authentification d'articles utilisant des materiaux transitoires modifiant l'etat optique
EP1411507A3 (fr) * 2002-10-17 2006-08-09 U-Tech Media Corp. Support de stockage optique avec temps de lecture limité
EP1411507A2 (fr) * 2002-10-17 2004-04-21 U-Tech Media Corp. Support de stockage optique avec temps de lecture limité
WO2004044911A2 (fr) * 2002-11-11 2004-05-27 D.M.S. Dynamic Media Solutions Ltd. Procede et dispositif pour empecher l'utilisation d'un support optique non original
WO2004044911A3 (fr) * 2002-11-11 2004-07-01 David Abrahamoff Procede et dispositif pour empecher l'utilisation d'un support optique non original
EP1685561A4 (fr) * 2003-08-15 2010-04-28 Verification Technologies Inc Teintures reagissant au laser pour systeme de protection contre la copie de disques polyvalents numeriques (dvd)
EP1685561A2 (fr) * 2003-08-15 2006-08-02 Verificatin Technologies, Inc Teintures reagissant au laser pour systeme de protection contre la copie de disques polyvalents numeriques (dvd)
WO2006075305A1 (fr) * 2005-01-17 2006-07-20 Koninklijke Philips Electronics N.V. Support de donnees a acces limite
US7892618B2 (en) 2005-03-21 2011-02-22 Sony Corporation Deterring theft of optical media
US8329277B2 (en) 2005-03-21 2012-12-11 Sony Coporation Deterring theft of optical media
US8258481B2 (en) 2005-04-25 2012-09-04 Sony Dadc Us Inc. System and method for selectively enabling or disabling an optical device
WO2006130496A1 (fr) * 2005-05-27 2006-12-07 Consumable Media Llc Disques optiques a nombre de lectures limite
EP1917597A2 (fr) * 2005-08-24 2008-05-07 Sony Dadc Us Inc. Possibilite de play-back selective de contenu sur un support optique
EP1917597A4 (fr) * 2005-08-24 2010-01-13 Sony Dadc Us Inc Possibilite de play-back selective de contenu sur un support optique
WO2007025076A2 (fr) 2005-08-24 2007-03-01 Sony Dadc Us Inc. Possibilite de play-back selective de contenu sur un support optique
EP1955328A1 (fr) * 2005-11-21 2008-08-13 General Electric Company Article optique possédant une caractéristique antivol et système et procédé permettant d'empecher le vol de celui-ci
US7653919B2 (en) * 2005-11-21 2010-01-26 General Electric Company Optical article having anti-theft feature and a system and method for inhibiting theft of same
US8057886B2 (en) 2005-11-21 2011-11-15 Nbcuniversal Media, Llc Optical article having anti-theft feature and a system and method for inhibiting theft of same
EP1993824A4 (fr) * 2006-01-10 2012-03-14 Verification Technologies Inc Support d'enregistrement numérique à données protégées
EP1993824A2 (fr) * 2006-01-10 2008-11-26 Verification Technologies, Inc Support d'enregistrement numérique à données protégées
EP1816647A2 (fr) * 2006-02-01 2007-08-08 Wellen Sham Support d'enregistrement à lecture unique
EP1816647A3 (fr) * 2006-02-01 2008-08-20 Wellen Sham Support d'enregistrement à lecture unique
WO2008114193A3 (fr) * 2007-03-22 2008-11-20 Koninkl Philips Electronics Nv Boîtier de stockage pour disque optique
WO2008114193A2 (fr) * 2007-03-22 2008-09-25 Koninklijke Philips Electronics N.V. Boîtier de stockage pour disque optique

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