GB2290526A - Labelling of compact discs - Google Patents
Labelling of compact discs Download PDFInfo
- Publication number
- GB2290526A GB2290526A GB9412600A GB9412600A GB2290526A GB 2290526 A GB2290526 A GB 2290526A GB 9412600 A GB9412600 A GB 9412600A GB 9412600 A GB9412600 A GB 9412600A GB 2290526 A GB2290526 A GB 2290526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- label
- disc
- information
- carrying
- sheet
- 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- Withdrawn
Links
- 238000002372 labelling Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000004821 Contact adhesive Substances 0.000 claims abstract description 3
- 238000004049 embossing Methods 0.000 claims abstract description 3
- 238000001459 lithography Methods 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000007373 indentation Methods 0.000 description 7
- 239000000976 ink Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G11B23/283—Security features, e.g. digital codes
- G11B23/284—Security features, e.g. digital codes on the record carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/26—Devices for applying labels
- B65C9/262—Devices for applying labels manually operable
- B65C9/265—Devices for applying labels manually operable specially adapted for compact discs
-
- 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
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/03—Containers for flat record carriers
- G11B23/0301—Details
- G11B23/031—Indicating means, e.g. sticker, bar code
-
- 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
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Discs 8 carrying optically coded information 4 with a reading side and an abverse non-reading side have a label 7, in the form of an annular, information carrying, sheet of material adhesively secured to the surface of the non-reading side. The ladel 7 may be annular sheet of paper carrying printed information, illustrations and/or machine readable information. The label may be printed by offset lithography or directly printed from a computer using ink jet, bubble jet or other non-impact printing method. Preferably the printing is carried out on paper or other sheet stock that has been pre-coated on the unprinted side with a contact adhesive protected by a peelably removable cover sheet. The label may include a holagram or be formed using a hologram carrying sheet and may carry raised characters formed by embossing or other means. Prior to or during the application of the label to the obverse non-reading side of the disc a security devise can be placed on the disc which is held securely in position and conclealed by the applied label. The security device can be used to prevent removal of a disc from a secure area, encoded to provide source and other identification data relating to the disc or to interact with reader interogation systems to prevent unathorised reading or copying. <IMAGE>
Description
LABELLING SYSTEM FOR DISCS CARRYING AUDIO AND VIDEO
INFORMATION
This invention relates to a labelling system for discs carrying audio and video information, often called 'compact discs' or CD ROMs.
Information, musical works and video images are often optically recorded in digital form at high density as spiral tracks on disc-shaped recording media. The digital information is stored in the form of areas having differing reflectance properties. The digital information is read from the discs as variations in the reflected radiation received from a fine beam of light or infra-red radiation which is directed to and follows a recorded track of digital information as the disc rotates. The recorded information is physically in the form of small indentations in the disc surface. The recordings may be formed directly on the surface of suitably sensitised discs or, if larger numbers are to be produced, by pressing from a master disc on to a disc-shaped transparent substrate to form a corresponding pattern of indentations.The recordings are customarily read by reflectance through one side of the transparent substrate. The obverse side, intially carrying the data indentations, is coated with a reflective layer to assist reading, and a protective laquer layer. so that the final surface is substantially flat.
Marking means, to provide identification of the contents of the disc without affecting the ability to read the stored information, is customarily formed on the obverse, nonreading side of the disc.
The laquer surface of the non-reading side of a recorded disc tends to be hydrophobic and to reject water based inks. For this reason it has been customary to print information on the discs by means of the silk screen process. This is an elaborate process which requires considerable time to set up and is expensive to use on small numbers of discs, e.g. less than 1000, particularly when multi-colour printing is required. Furthermore, contamination of the reading side of the disc can easily occur corruptng the information read from the disc. As a necessity therefore the printing process must be carried out under 'clean room' conditions. Particular care must be taken to ensure that no ink particles reach the surface of the reading side of the disc as they will adhere to it permanently and destroy the integrity of data read from it.
The present invention provides a method of marking discs carrying optically coded information in digital form which is inexpensive and may be used economically on small runs of discs. The method also provides means for improving the security of the recorded information against copying or unauthorised use.
According to the present invention there is provided a method of marking discs carrying optically coded information with a reading side and an obverse non-reading side, characterised in that a label, in the form of an annular, information carrying, sheet of material is adhesively secured to the surface of the non-reading side.
In one embodiment the label is an annular sheet of paper carrying information and/or illustrations printed by offset lithography. This is a simple and inexpensive method of printing which may be carried out in an area separate from that containing recorded discs so that contamination of the discs is avoided. In a preferred embodiment the printing is carried out on paper or other sheet stock that has been pre-coated on one side with a contact adhesive and which has been protected by a peelably removable cover sheet.
The required annular shape of the label may be formed by pre-punching the necessary circular dimensions before or after printing in known manner. As well as information that can be read directly the label may carry illustrations, bar codes, or other machine readable information.
To enhance security or for artistic effects the label may include a hologram or be formed from a hologram carrying sheet.
The method of marking discs according to the invention can be used economically on small runs, e.g. 100 or so, discs which have been manufactured by direct recording rather than pressing. For very small runs, e.g. 10 or so the labels may be directly printed from a computer using ink jet, bubble jet or other, preferably non-impact, printing method. The labels may also carry raised characters formed by embossing or other means to enable the carried information to be read by blind or partially sighted users.
The physical dimensions of recorded discs conform to standards laid down on the basis of the reading devices in which they are to be used. There is normally a central aperture to receive the spindle of the reader and a peripheral area used to clamp the disc to the rotating spindle. There is also an outer border near the rim of the disc which is free of recorded information. The area between the clamping area and the border carries recorded information and is traversed by the reading device while the disc rotates. The diameter of this aperture and the overall diameter of the disc set the limits of the inner and outer diameter of the annular label.
Prior to or during the application of the label to the base surface of the disc a security device can be placed on the disc which is held securely in position by the label.
Many small types of passive security devices are known which may be used satisfactorily beneath the labels. The devices may be used to prevent removal of a disc from a secure area, encoded to provide source and other identification data or to interact with reader interogation systems to prevent unauthorised reading or copying. In many embodiments the presence of a security device will not be apparent from the external appearance of the disc.
The adhesive used to hold the label to the disc surface is preferably solvent free and, apart from being adhesively compatible, must not interact with the laquer substrate.
In a most preferred embodiment, before or after the label has been applied to the disc, a transparent protective film is laminated to the printed surface. Such a film layer prevents degradation of the printed matter or illustrations by moisture and/or abrasion.
The invention provides an economic method of applying identification labels and security markings to discs carrying optically coded information.
In order that the invention may be clearly understood it will now be described with reference to the accompanying drawings in which:
Figure 1 shows a plan view of a disc carrying optically coded information for use in the method of the invention,
Figure 2a shows a cross-sectional view of the label illustrated in Figure 1 prior to lamination,
Figure 2b shows a cross-sectional view of the label illustrated in Figure 1 after lamination, and
Figure 3 shows an enlarged cross-sectional view of part of an information carrying disc showing the relationship between the recorded data, substrate and label.
A disc carrying optically coded information 1, see Figure 1, has a centrally located aperture 2 to receive the spindle of a disc reader. An inner annular portion 3 is reserved for the clamping mechanism that engages the disc with the rotating spindle and a buffer area. After the annular area 3 there is an information area 4 carrying the information recorded in digital form which can extend up to the edge 5 of the disc 1. Preferably the annular label according to the invention covers at least all the information-area 4 on the non-reading side of the disc.
For audio discs the aperture 2 has a diameter of 15 mm, the annular area between the aperture 2 and the information area 4 has an outer diameter of 44 mm. The information area extends from the boundary of the area 4 up to the edge of the disc. The overall diameter of the disc in 120 mm.
5
Other audio discs have an overall diameter of 80 mm and for computer CDROM and video discs other standards may apply.
A label 7, see Figure 2a, is located concentrically above or below a disc 8. The surface of the disc 8 adjacent to the label 7 will be the non-reading side of the disc.
After pressure and/or vacuum the label 7 is laminated to the disc 8 and covers the information area 9 on the non-reading side, see Figure 2b. The thickness of the label 7 will depend upon the nature of the material used to carry the printed or other information. The range of thicknesses extends from 70 to 700 micrometres. The labelled disc 8 has a thickness of 1.2 mm.
The construction of a labelled disc is shown in greater detail in Figure 3. The base of the disc is formed from a substrate 10 of a polycarbonate resin. Indentations 11 are formed under the influence of pressure and temperature from a master disc. The indentations 11 carry a coating 12 of aluminium deposited under vacuum on the pressed disc.
The irregular surface provided by the indentations 11 is rendered level and the indentations protected by a layer of laquer 13. The layer is formed from a liquid photopolymerisable composition coated over the layer 12 and cured by exposure to appropriate actinic radiation. A label 14 is adhesively secured to the layer 13 as previously described.
For security purposes a device may be placed on the layer 13 before lamination with the label 14.
Passive security devices suitable for locating below the label on discs according to the invention are well known.
The devices may comprise a planar tuned circuit, a semiconductor mixer, interogatable ROM or other known device.
Claims (17)
1. A method of marking discs carrying optically coded information with a reading side and an obverse non-reading side, characterised in that a label, in the form of an annular, information carrying, sheet of material is adhesively secured to the surface of the non-reading side.
2. The method as claimed in claim 1, characterised in that the label is an annular sheet of paper carrying printed information and/or illustrations.
3. The method as claimed in claim 2, characterised in that the label is printed by offset lithography.
4. The method as claimed in claim 2, characterised in that the label is directly printed from a computer using ink jet, bubble jet or other non-impact printing method.
5. The method as claimed in any of the claims 2 to 4, characterised in that the printing is carried out on paper or other sheet stock that has been pre-coated on the unprinted side with a contact adhesive protected by a peelably removable cover sheet.
6. The method as claimed in any of the claims 2 to 5, characterised in that the required annular shape of the label is formed by pre-punching the necessary circular dimensions before or after printing.
7. The method as claimed in any of the preceding claims, characterised in that the label carries illustrations, bar codes, or other machine readable information.
8. The method as claimed in any of the preceding claims,
characterised in that the label includes a hologram or is
formed using a hologram carrying sheet.
9. The method as claimed in any of the preceding claims,
characterised in that the label carries raised characters
formed by embossing or other means.
10. The method as claimed in any of the preceding claims,
characterised in that prior to or during the application of
the label to the obverse non-reading side a security device
is placed on the disc which is held securely in position by
the applied label.
11. The method as claimed in claim 10, characterised in
that the security device is used to prevent removal of a
disc from a secure area, encoded to provide source and
other identification data relating to the disc or to
interact with reader interogation systems to prevent
unauthorised reading or copying.
12. The method as claimed in any of the preceding claims,
characterised in that the adhesive used to secure the label
to the disc surface is solvent free and does not interact
with any laquer substrate beneath it.
13. The method as claimed in any of the preceding claims,
characterised in that before or after the information
carrying sheet has been applied to the disc a transparent
protective film is laminated to the information bearing
surface.
14. Methods of marking discs carrying optically coded
information as claimed in claim 1 and as herein described.
15. Methods of marking discs carrying optically coded information as herein described with reference to the accompanying drawings.
16. Discs carrying optically coded information with a reading side and an obverse non-reading side, characterised in that a label, in the form of an annular, information carrying, sheet of material is adhesively secured to the surface of the non-reading side.
17. Discs carrying optically coded information whenever made by the method of any of the claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9412600A GB2290526A (en) | 1994-06-23 | 1994-06-23 | Labelling of compact discs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9412600A GB2290526A (en) | 1994-06-23 | 1994-06-23 | Labelling of compact discs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9412600D0 GB9412600D0 (en) | 1994-08-10 |
| GB2290526A true GB2290526A (en) | 1996-01-03 |
Family
ID=10757201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9412600A Withdrawn GB2290526A (en) | 1994-06-23 | 1994-06-23 | Labelling of compact discs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2290526A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29619143U1 (en) * | 1996-11-05 | 1997-01-02 | Claußnitzer, Werner, 42329 Wuppertal | Label sheet |
| DE29620074U1 (en) * | 1996-11-19 | 1997-02-06 | Heinelt, Dirk, 80939 München | Data carriers in the form of disks or cassettes |
| US5902446A (en) * | 1994-08-08 | 1999-05-11 | Neat-O Llc | Labeler apparatus and method of applying self-adhesive labels to compact disks |
| US5951819A (en) * | 1996-09-16 | 1999-09-14 | Stomp, Inc. | Optical disc adhesive label applicator |
| WO2000043945A1 (en) * | 1999-01-23 | 2000-07-27 | Fred Johannsen | Disc-shaped information carrier with a high storage density |
| EP1030304A2 (en) * | 1999-02-19 | 2000-08-23 | Sony Computer Entertainment Inc. | Optical disk, method for manufacturing optical disk, and entertainment system featuring the optical disk |
| GB2348624A (en) * | 1999-04-09 | 2000-10-11 | Scott Adam Cooke | Means for providing a visual image |
| WO2001057863A1 (en) * | 2000-02-04 | 2001-08-09 | Hsm Holographic Systems München Gmbh | Optical storage medium |
| EP1276107A1 (en) * | 1996-05-22 | 2003-01-15 | Phonosound Musikproduktions GmbH | Label for data carrier |
| US6531262B1 (en) * | 1998-06-25 | 2003-03-11 | Spectradisc Corporation | Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant |
| US6585021B2 (en) | 2001-06-22 | 2003-07-01 | Imation Corp. | CD label applicator kit |
| EP1324295A1 (en) * | 2001-12-31 | 2003-07-02 | Ritek Corporation | Luminous disk device |
| US6595258B2 (en) | 1996-07-24 | 2003-07-22 | Fellowes, Inc. | Disk labeling device |
| US6697178B2 (en) | 2002-05-30 | 2004-02-24 | E. I. Du Pont De Nemours And Company | Disk with holographic security label applied thereto and method of applying label |
| WO2004051653A1 (en) * | 2002-12-02 | 2004-06-17 | Oberwager Sain Raul | Method for the authentication and tamper protection of the contents of an optical device used to store digital documents and/or digital objects |
| WO2006069332A2 (en) * | 2004-12-22 | 2006-06-29 | Imation Corp. | Optical media with laminated inkjet receptor |
| EP2081191A1 (en) | 2008-01-21 | 2009-07-22 | Tecnicas Pantra S.L. | Non symmetric devices with alarms for compact discs and similar articles |
| EP2216786A1 (en) * | 2006-05-05 | 2010-08-11 | Moser Baer India Ltd. | Dual layer optical disc and manufacturing method therefor |
| US8953235B2 (en) | 2006-10-30 | 2015-02-10 | Thomson Licensing | Method for producing a security mark on an optical data carrier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203278A (en) * | 1987-03-31 | 1988-10-12 | Sanyo Electric Co | Optical recording disc |
| GB2209863A (en) * | 1987-09-16 | 1989-05-24 | Philips Nv | Adaptor to enlarge the diameter of an optical disc |
| EP0422774A2 (en) * | 1989-09-08 | 1991-04-17 | Sharp Kabushiki Kaisha | Optical memory element and protective sheet for use with the same |
| EP0514156A2 (en) * | 1991-05-16 | 1992-11-19 | Donald Spector | Improved compact disc package |
-
1994
- 1994-06-23 GB GB9412600A patent/GB2290526A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203278A (en) * | 1987-03-31 | 1988-10-12 | Sanyo Electric Co | Optical recording disc |
| GB2209863A (en) * | 1987-09-16 | 1989-05-24 | Philips Nv | Adaptor to enlarge the diameter of an optical disc |
| EP0422774A2 (en) * | 1989-09-08 | 1991-04-17 | Sharp Kabushiki Kaisha | Optical memory element and protective sheet for use with the same |
| EP0514156A2 (en) * | 1991-05-16 | 1992-11-19 | Donald Spector | Improved compact disc package |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902446A (en) * | 1994-08-08 | 1999-05-11 | Neat-O Llc | Labeler apparatus and method of applying self-adhesive labels to compact disks |
| US6321814B1 (en) | 1994-08-08 | 2001-11-27 | Neato, Llc | Disk labeling devices |
| EP1276107A1 (en) * | 1996-05-22 | 2003-01-15 | Phonosound Musikproduktions GmbH | Label for data carrier |
| US6595258B2 (en) | 1996-07-24 | 2003-07-22 | Fellowes, Inc. | Disk labeling device |
| US5951819A (en) * | 1996-09-16 | 1999-09-14 | Stomp, Inc. | Optical disc adhesive label applicator |
| DE29619143U1 (en) * | 1996-11-05 | 1997-01-02 | Claußnitzer, Werner, 42329 Wuppertal | Label sheet |
| US6279960B1 (en) | 1996-11-05 | 2001-08-28 | Werner Claussnitzer | Label sheet for annular labels for compact disks |
| DE29620074U1 (en) * | 1996-11-19 | 1997-02-06 | Heinelt, Dirk, 80939 München | Data carriers in the form of disks or cassettes |
| US6780564B2 (en) | 1998-06-25 | 2004-08-24 | Flexplay Technologies, Inc. | Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant |
| US6531262B1 (en) * | 1998-06-25 | 2003-03-11 | Spectradisc Corporation | Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant |
| WO2000043945A1 (en) * | 1999-01-23 | 2000-07-27 | Fred Johannsen | Disc-shaped information carrier with a high storage density |
| EP1030304A2 (en) * | 1999-02-19 | 2000-08-23 | Sony Computer Entertainment Inc. | Optical disk, method for manufacturing optical disk, and entertainment system featuring the optical disk |
| EP1030304A3 (en) * | 1999-02-19 | 2000-10-18 | Sony Computer Entertainment Inc. | Optical disk, method for manufacturing optical disk, and entertainment system featuring the optical disk |
| US6724693B1 (en) | 1999-02-19 | 2004-04-20 | Sony Computer Entertainment Inc. | Optical disk having readable information on both sides of the disk combination with an optical disk device |
| GB2348624A (en) * | 1999-04-09 | 2000-10-11 | Scott Adam Cooke | Means for providing a visual image |
| WO2001057863A1 (en) * | 2000-02-04 | 2001-08-09 | Hsm Holographic Systems München Gmbh | Optical storage medium |
| US6585021B2 (en) | 2001-06-22 | 2003-07-01 | Imation Corp. | CD label applicator kit |
| EP1324295A1 (en) * | 2001-12-31 | 2003-07-02 | Ritek Corporation | Luminous disk device |
| US6697178B2 (en) | 2002-05-30 | 2004-02-24 | E. I. Du Pont De Nemours And Company | Disk with holographic security label applied thereto and method of applying label |
| WO2004051653A1 (en) * | 2002-12-02 | 2004-06-17 | Oberwager Sain Raul | Method for the authentication and tamper protection of the contents of an optical device used to store digital documents and/or digital objects |
| WO2006069332A2 (en) * | 2004-12-22 | 2006-06-29 | Imation Corp. | Optical media with laminated inkjet receptor |
| WO2006069332A3 (en) * | 2004-12-22 | 2007-04-19 | Imation Corp | Optical media with laminated inkjet receptor |
| EP2216786A1 (en) * | 2006-05-05 | 2010-08-11 | Moser Baer India Ltd. | Dual layer optical disc and manufacturing method therefor |
| US8953235B2 (en) | 2006-10-30 | 2015-02-10 | Thomson Licensing | Method for producing a security mark on an optical data carrier |
| EP2081191A1 (en) | 2008-01-21 | 2009-07-22 | Tecnicas Pantra S.L. | Non symmetric devices with alarms for compact discs and similar articles |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9412600D0 (en) | 1994-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2290526A (en) | Labelling of compact discs | |
| US5706047A (en) | Storage media for an optical information system having an identification code embedded therein | |
| EP0980070B1 (en) | Diffractive security device on compact discs | |
| RU2267406C2 (en) | Method of producing data carrier printed by means of laser, data carrier produced by the method and blank for the carrier | |
| KR910007912B1 (en) | Method for affixing information of read - only optical dissks | |
| JPH05254283A (en) | Optical card and reader thereof | |
| SK159395A3 (en) | Optically readable thin-layer storage medium for digital data and reading adapter | |
| US20050160442A1 (en) | Optical data storage device protector | |
| JPH04212984A (en) | Hologram product having discontinuous metal part including alphanumeric shape | |
| CZ209986A3 (en) | Optically readable disc-like information carrier and process for producing thereof | |
| RU2417440C2 (en) | Apparatus for recording confidential information | |
| EP0974951A3 (en) | label for concealing information | |
| JP2013003535A (en) | Label with two-dimensional code | |
| CA1196720A (en) | Disc-shaped, optically readable information carrier having high storage density | |
| JP2822826B2 (en) | Transparent protective seal with hologram | |
| JP2003162206A (en) | Hologram raw sheet and printed matter formed by printing on this raw sheet | |
| GB2217507A (en) | Fitting an annular protective element to a laser disc | |
| EP0970469B1 (en) | Customized graphics for optical discs | |
| US20020158963A1 (en) | Information transfer device and method of exposing printable photosensitive films/papers in a printing machine for electronically readable information storage | |
| US6277461B1 (en) | Optical recording medium | |
| JP2513267B2 (en) | Optical recording medium | |
| JPH10278462A (en) | Counterfeit prevention ticket | |
| WO2005104112A2 (en) | Optical disc having lenticular surface and method of manufacturing | |
| CA2206364A1 (en) | Process for the manufacture of a master disk for the production of optical disk pressing matrices bearing a marking, particularly of the anti-pirate type, a master disk, a pressing matrix and the optical disk obtained | |
| JPS5850454Y2 (en) | Cards with recording layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |