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1. 发明申请

WO0129828A8 METHODS AND APPARATUS FOR RENDERING AN OPTICALLY ENCODED MEDIUM UNREADABLE AND TAMPER-RESISTANT 审中-公开
标题翻译：提供光学编码中介的方法和装置无法耐用和防篡改
公开(公告)号：WO0129828A8
公开(公告)日：2001-09-20
申请号：PCT/US0041231
申请日：2000-10-18
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , KRIEG-KOWALD MARIANNE , SMUK ANDREI
IPC分类号： G11B7/0037 , G11B7/24 , G11B7/244 , G11B7/26 , G11B23/28 , G11B23/50 , G11B3/70
CPC分类号： G11B23/282 , G11B7/0037 , G11B7/24 , G11B7/244 , G11B7/252 , G11B7/26 , G11B23/505
摘要： Methods and means for rendering optically readable media unreadable and tamper resistant are disclosed. A method for this include providing the readout surface of the optically readable medium with a roughened surface by embossing, scratching, depositing a non-planar layer or the like which inhibits the readout of the medium (B). Applying a sublimable coating (200) to the roughened surface which results in a smooth surface which enables the readout of the media (C). Providing a barrier layer (200A) to the smoothed surface (D). When used, the barrier layer is removed exposing the sublimable coating (200) (E). This coating evaporates due to heating by the readout beam and/or exposure to the atmosphere to expose the roughened surface rendering the media unreadable (F).
摘要翻译：公开了用于呈现光学可读介质的不可读和防篡改的方法和装置。其方法包括通过压印，刮擦，沉积非限制性的层或类似物来提供光学可读介质的读出表面的粗糙表面，从而阻止介质（B）的读出。将可升华涂层（200）施加到粗糙表面，这导致光滑表面，使得能够读取介质（C）。向平滑的表面（D）提供阻挡层（200A）。当使用时，去除暴露高温涂层（200）（E）的阻挡层。这种涂层由于读出光束的加热和/或暴露于大气而蒸发，露出粗糙的表面，使得介质不可读（F）。

2. 发明申请

WO0129828A9 METHODS AND APPARATUS FOR RENDERING AN OPTICALLY ENCODED MEDIUM UNREADABLE AND TAMPER-RESISTANT 审中-公开
标题翻译：提供光学编码中介的方法和装置无法耐用和防篡改
公开(公告)号：WO0129828A9
公开(公告)日：2002-08-15
申请号：PCT/US0041231
申请日：2000-10-18
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , KRIEG-KOWALD MARIANNE , SMUK ANDREI
IPC分类号： G11B7/0037 , G11B7/24 , G11B7/244 , G11B7/26 , G11B23/28 , G11B23/50 , G11B3/70
CPC分类号： G11B23/282 , G11B7/0037 , G11B7/24 , G11B7/244 , G11B7/252 , G11B7/26 , G11B23/505
摘要： Methods and means for rendering optically readable media unreadable and tamper resistant are disclosed. A method for this include providing the readout surface of the optically readable medium with a roughened surface by embossing, scratching, depositing a non-planar layer or the like which inhibits the readout of the medium (B). Applying a sublimable coating (200) to the roughened surface which results in a smooth surface which enables the readout of the media (C). Providing a barrier layer (200A) to the smoothed surface (D). When used, the barrier layer is removed exposing the sublimable coating (200) (E). This coating evaporates due to heating by the readout beam and/or exposure to the atmosphere to expose the roughened surface rendering the media unreadable (F).
摘要翻译：公开了用于呈现光学可读介质的不可读和防篡改的方法和装置。其方法包括通过压印，刮擦，沉积非限制性的层或类似物来提供光学可读介质的读出表面的粗糙表面，从而阻止介质（B）的读出。将可升华涂层（200）施加到粗糙表面，这导致光滑表面，使得能够读取介质（C）。向平滑的表面（D）提供阻挡层（200A）。当使用时，去除暴露高温涂层（200）（E）的阻挡层。该涂层由于读出光束的加热和/或暴露在大气中而蒸发，露出粗糙表面，使得介质不可读（F）。

3. 发明专利

PL345088A1 METHODS AND APPARATUS FOR RENDERING AN OPTICALLY ENCODED MEDIUM UNREADABLE 未知
公开(公告)号：PL345088A1
公开(公告)日：2001-12-03
申请号：PL34508899
申请日：1999-06-25
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , NORLAND KENNETH S
IPC分类号： G11B7/241 , B32B20060101 , B32B3/00 , G03C1/73 , G11B3/70 , G11B7/0055 , G11B7/24 , G11B7/252 , G11B7/257 , G11B20/00 , G11B23/28
摘要： Methods and apparatus are provided for making an optically readable media unreadable. The method includes steps of (a) providing the media with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In this embodiment the step of initiating includes steps of (d) generating singlet oxygen in a layer disposed on the media; and (e) reacting the singlet oxygen with a metal-containing layer for oxidizing the surface of the metal-containing layer, thereby degrading the reflectivity of the surface. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation of sublimation. In this embodiment a layer of the media is comprised of a volatile component and at least one other component. Removing at least some of volatile component by evaporation or sublimation causes an increase in at least one of photoabsorption or scattering or surface roughness with the remaining component, thereby rendering at least a portion of encoded information of the media unreadable, or affecting the tracking operation.

4. 发明专利

NZ518408A Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant 未知
公开(公告)号：NZ518408A
公开(公告)日：2003-10-31
申请号：NZ51840800
申请日：2000-10-18
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , KRIEG-KOWALD MARIANNE , SMUK ANDREI
IPC分类号： C08G63/08 , G11B20060101 , G11B3/70 , G11B7/24 , G11B7/26
摘要： A method for making an optically readable media unreadable comprises a) providing the media with a readout surface layer that is non-flat and that inhibits optical readout of the media; b) applying a coating layer to the non-flat surface layer to smooth the non-flat surface and to enable optical readout of the media; and c) after an initiation of a readout period, reducing the thickness of the coating layer so as to expose the non-flat readout surface layer, thereby inhibiting optical readout of the media. The coating layer can comprise a volatile component, which can be partially removed to reduce the thickness of the coating layer A method of fabricating a limited play optically readable disk, comprises: d) providing a disk having a readout surface through which a readout device is able to read information; e) forming a plurality of three dimensional features at the readout surface, the features inhibiting optical readout of the disk by the reading device; f) forming a colour forming layer disposed over the readout surface and at least partially covering the features; and g) forming an outer layer disposed over the colour forming layer, wherein the features are completely covered by the colour forming layer and the outer layer and the presence of the colour forming layer and the outer layer enables optical readout of the disk by the reading device.

5. 发明专利

CA2334516A1 METHODS AND APPARATUS FOR RENDERING AN OPTICALLY ENCODED MEDIUM UNREADABLE 未知
公开(公告)号：CA2334516A1
公开(公告)日：1999-12-29
申请号：CA2334516
申请日：1999-06-25
申请人： SPECTRADISC CORP
发明人： NORLAND KENNETH S , LAWANDY NABIL M , ZEPP CHARLES M
IPC分类号： G11B7/241 , B32B20060101 , B32B3/00 , G03C1/73 , G11B3/70 , G11B7/0055 , G11B7/24 , G11B7/252 , G11B7/257 , G11B20/00 , G11B23/28
摘要： Methods and apparatus are provided for making an optically readable media (2 0) unreadable. The method includes steps of (a) providing the media (20) with a n optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media (20) to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surfac e wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface i s removed to the atmosphere, such as by evaporation or sublimation.

6. 发明专利

NO20006345L 未知
公开(公告)号：NO20006345L
公开(公告)日：2001-02-23
申请号：NO20006345
申请日：2000-12-13
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , NORLAND KENNETH S
IPC分类号： G11B7/241 , B32B20060101 , B32B3/00 , G03C1/73 , G11B3/70 , G11B7/0055 , G11B7/24 , G11B7/252 , G11B7/257 , G11B20/00 , G11B23/28 , B32B
摘要： Methods and apparatus are provided for making an optically readable media unreadable. The method includes steps of (a) providing the media with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In this embodiment the step of initiating includes steps of (d) generating singlet oxygen in a layer disposed on the media; and (e) reacting the singlet oxygen with a metal-containing layer for oxidizing the surface of the metal-containing layer, thereby degrading the reflectivity of the surface. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation of sublimation. In this embodiment a layer of the media is comprised of a volatile component and at least one other component. Removing at least some of volatile component by evaporation or sublimation causes an increase in at least one of photoabsorption or scattering or surface roughness with the remaining component, thereby rendering at least a portion of encoded information of the media unreadable, or affecting the tracking operation.

7. 发明专利

AU4722499A Methods and apparatus for rendering an optically encoded medium unreadable 未知
公开(公告)号：AU4722499A
公开(公告)日：2000-01-10
申请号：AU4722499
申请日：1999-06-25
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , NORLAND KENNETH S
IPC分类号： G11B7/241 , B32B20060101 , B32B3/00 , G03C1/73 , G11B3/70 , G11B7/0055 , G11B7/24 , G11B7/252 , G11B7/257 , G11B20/00 , G11B23/28
摘要： Methods and apparatus are provided for making an optically readable media unreadable. The method includes steps of (a) providing the media with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In this embodiment the step of initiating includes steps of (d) generating singlet oxygen in a layer disposed on the media; and (e) reacting the singlet oxygen with a metal-containing layer for oxidizing the surface of the metal-containing layer, thereby degrading the reflectivity of the surface. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation of sublimation. In this embodiment a layer of the media is comprised of a volatile component and at least one other component. Removing at least some of volatile component by evaporation or sublimation causes an increase in at least one of photoabsorption or scattering or surface roughness with the remaining component, thereby rendering at least a portion of encoded information of the media unreadable, or affecting the tracking operation.

8. 发明专利

NZ508933A Methods and apparatus for rendering an optically encoded medium unreadable by deforming the medium that is responsive to a read out beam 未知
公开(公告)号：NZ508933A
公开(公告)日：2002-11-26
申请号：NZ50893399
申请日：1999-06-25
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , NORLAND KENNETH S
IPC分类号： G11B7/241 , B32B20060101 , B32B3/00 , G03C1/73 , G11B3/70 , G11B7/0055 , G11B7/24 , G11B7/252 , G11B7/257 , G11B20/00 , G11B23/28
摘要： Methods and apparatus are provided for making an optically readable media (20) unreadable. The method includes steps of (a) providing the media (20) with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media (20) to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation or sublimation.

9. 发明专利

BR0014918A 未知
公开(公告)号：BR0014918A
公开(公告)日：2002-11-12
申请号：BR0014918
申请日：2000-10-18
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , KRIEG-KOWALD MARIANNE , SMUK ANDREI
IPC分类号： G11B3/70

10. 发明专利

FI20002835A 未知
公开(公告)号：FI20002835A
公开(公告)日：2000-12-22
申请号：FI20002835
申请日：2000-12-22
申请人： SPECTRADISC CORP
发明人： LAWANDY NABIL M , ZEPP CHARLES M , NORLAND KENNETH S
IPC分类号： G11B7/241 , B32B20060101 , B32B3/00 , G03C1/73 , G11B3/70 , G11B7/0055 , G11B7/24 , G11B7/252 , G11B7/257 , G11B20/00 , G11B23/28
摘要： Methods and apparatus are provided for making an optically readable media unreadable. The method includes steps of (a) providing the media with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In this embodiment the step of initiating includes steps of (d) generating singlet oxygen in a layer disposed on the media; and (e) reacting the singlet oxygen with a metal-containing layer for oxidizing the surface of the metal-containing layer, thereby degrading the reflectivity of the surface. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation of sublimation. In this embodiment a layer of the media is comprised of a volatile component and at least one other component. Removing at least some of volatile component by evaporation or sublimation causes an increase in at least one of photoabsorption or scattering or surface roughness with the remaining component, thereby rendering at least a portion of encoded information of the media unreadable, or affecting the tracking operation.

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