FR2732810A1 - Serial number application device for optical disc - Google Patents

Serial number application device for optical disc Download PDF

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Publication number
FR2732810A1
FR2732810A1 FR9503963A FR9503963A FR2732810A1 FR 2732810 A1 FR2732810 A1 FR 2732810A1 FR 9503963 A FR9503963 A FR 9503963A FR 9503963 A FR9503963 A FR 9503963A FR 2732810 A1 FR2732810 A1 FR 2732810A1
Authority
FR
France
Prior art keywords
disc
serial number
information
optical disc
produced
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Withdrawn
Application number
FR9503963A
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French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9503963A priority Critical patent/FR2732810A1/en
Publication of FR2732810A1 publication Critical patent/FR2732810A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00659—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a control step which is implemented as an executable file stored on the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
    • 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
    • G11B23/30—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 with provision for auxiliary signals
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

The device operates by physically destroying regions of the disc surface to destroy data recorded on the disc surface. The physical alteration of the disc is performed by drilling a pattern of holes of less than 0.4 mm diameter in the disc, or alternatively using electrical discharges at controlled locations to form a pattern. The content destroyed is significant, as is the physical location of the holes, in identifying the serial number of the disc. The number is unique for each disc. To form the serial number the disc is driven in rotation by a computer, as is the drilling or electrical discharge head.

Description

La présente invention concerne un système destiné à enregistrer un numéro de série sur un disque optique numérique réputé être en lecture seule.The present invention relates to a system for recording a serial number on a digital optical disc deemed to be read only.

On constate d'un part que - les disques optiques numériques produits en grande série, et notamment ceux du type CDROM (Compact Disc Read Only Memory), sont tous identiques en sortie de chaîne de production.We note on the one hand that - digital optical discs produced in large series, and in particular those of the CDROM (Compact Disc Read Only Memory) type, are all identical at the end of the production line.

L'information qui y est contenue est donc la même pour tous ces disques produits. Ces disques étant de type lecture seule , on ne peut y ajouter à posteriori une information, même de petite taille, les différenciant les uns des autres.The information contained therein is therefore the same for all these discs produced. These discs being of the read-only type, one cannot add to them a posteriori information, even of small size, differentiating them from each other.

- d'autre part, il existe des logiciels de protection qui permettent d'éviter tout usage illicite de l'information que ce logiciel protège, à la condition que cette information soit identifiée par un numéro de série et que le logiciel ait un accès direct à l'information codant ce numéro de série. On peut prendre l'exemple du logiciel de protection LicenseGuard (marque déposée de la Société V-Technologies - France).- on the other hand, there are protection software which makes it possible to avoid any illicit use of the information that this software protects, on the condition that this information is identified by a serial number and that the software has direct access to the information encoding this serial number. We can take the example of the LicenseGuard protection software (registered trademark of the Company V-Technologies - France).

Le système selon l'invention permet d'enregistrer après production sur un disque optique numérique, même réputé en lecture seule , un numéro de série qui sera différent pour chaque disque et pourra être lu directement par un logiciel de protection de l'information contenue sur ce disque.The system according to the invention makes it possible to record after production on a digital optical disc, even deemed to be read only, a serial number which will be different for each disc and can be read directly by software for protecting the information contained on this disc.

Le codage du numéro de série à enregistrer sur le disque est réalisé en détruisant des parties d'information de ce disque situées dans des zones spécialement affectées à cet usage.The coding of the serial number to be recorded on the disc is carried out by destroying parts of information from this disc located in areas specially allocated for this use.

Ces zones contiennent lors de la production une information confidentielle dont la destruction par le procédé de l'invention est irréversible. Un éventuel contrefacteur ne peut en effet reconstituer la totalité de l'information détruite après l'opération de sériation, ne disposant pas de cette information. La contrefaçon du numéro de série d'un disque s'avère donc impossible. These zones contain confidential information during production, the destruction of which by the process of the invention is irreversible. A possible counterfeiter cannot indeed reconstruct all of the information destroyed after the serialization operation, without this information. Counterfeiting the serial number of a disc is therefore impossible.

Selon des modes particuliers de réalisation - les destructions d'informations sont réalisées par le perçage de trous cylindriques de petit diamètre (inférieurs à 0.4 mm) perforant la surface contenant l'information du disque.According to particular embodiments - the destruction of information is carried out by drilling cylindrical holes of small diameter (less than 0.4 mm) perforating the surface containing the information of the disc.

- les destructions sont réalisées par des arcs électriques appliqués sur la surface métallique contenant l'information du disque.- the destructions are carried out by electric arcs applied on the metal surface containing the information of the disc.

Les destructions effectuées selon les modes évoqués ci-dessus sont réalisées par un dispositif annexe de l'invention destinée à effectuer automatiquement l'opération de sériation d'un disque. Ce dispositif annexe est caractérisé par un ensemble mécanique permettant un très grand nombre de combinaisons des positions des points de destructions. Ces combinaisons sont automatiquement générées par un ordinateur relié à cet ensemble mécanique.The destructions carried out according to the modes mentioned above are carried out by an annex device of the invention intended to automatically perform the operation of serializing a disk. This additional device is characterized by a mechanical assembly allowing a very large number of combinations of the positions of the destruction points. These combinations are automatically generated by a computer linked to this mechanical assembly.

La figure 1 représente vu de dessus un disque optique numérique de type CDROM après traitement par le système selon l'invention.FIG. 1 represents seen from above a digital optical disc of CDROM type after treatment by the system according to the invention.

La figure 2 représente un schéma de principe du dispositif annexe permettant l'automatisation du système selon l'invention.FIG. 2 represents a block diagram of the annex device allowing the automation of the system according to the invention.

En référence à la figure 1 :
Un disque optique (1) constitué notamment par un trou de centrage (2) et une zone contenant l'information à protéger (7) se voit affecter une zone supplémentaire (3) dédiée à l'application des destructions (4)(5)(6) selon l'invention. Le nombre de destructions peut être quelconque.Referring to Figure 1:
An optical disc (1) constituted in particular by a centering hole (2) and an area containing the information to be protected (7) is assigned an additional area (3) dedicated to the application of destruction (4) (5) (6) according to the invention. The number of destructions can be arbitrary.

Le disque ainsi constitué peut être lu dans un lecteur standard. Au sein de l'information à protéger (7) est intégré un logiciel de protection susceptible de lire la zone dédiée (3), d'en extraire le numéro de série par analyse des zones détruites, et d'autoriser ou non l'exploitation des informations contenues dans la zone (7). The resulting disc can be played in a standard player. Within the information to be protected (7) is integrated protection software capable of reading the dedicated area (3), extracting the serial number by analyzing the destroyed areas, and authorizing or not operating information contained in area (7).

En référence à la figure 2
Le disque (1) est placé sur un plateau tournant (2) et bloqué par un contre plateau magnétique (7). Le plateau tournant (2) est entraîné par le moteur pas-à-pas (3), lui-même piloté par l'ordinateur (6).Referring to figure 2
The disc (1) is placed on a turntable (2) and blocked by a magnetic counter plate (7). The turntable (2) is driven by the stepping motor (3), itself controlled by the computer (6).

La tête porte-outil (4) est munie d'un foret (8) ou d'électrodes (8) selon le mode particulier de réalisation de l'invention. Cette tête porte-outil (4) est montée sur un système de translation 2 axes radial et vertical (5) commandé par l'ordinateur (6).The tool holder head (4) is provided with a drill (8) or electrodes (8) according to the particular embodiment of the invention. This tool holder head (4) is mounted on a 2-axis radial and vertical translation system (5) controlled by the computer (6).

L'ensemble de ce dispositif permet d'effectuer les destructions selon l'invention dans la zone dédiée (3) du disque (1) à des endroits précis permettant par le grand nombre de combinaisons possibles un codage efficace d'un numéro de série.The whole of this device makes it possible to carry out the destructions according to the invention in the dedicated area (3) of the disc (1) at precise locations allowing, by the large number of possible combinations, efficient coding of a serial number.

Le système selon l'invention est plus particulièrement destiné aux producteurs informatiques désirant interdire la duplication et restreindre l'accès à l'information contenue sur les disques optiques numériques de type CDROM de leur production. The system according to the invention is more particularly intended for computer producers wishing to prohibit duplication and restrict access to the information contained on digital optical discs of the CDROM type of their production.

Claims (5)

REVENDICATIONS 1) Dispositif consistant à coder un numéro de série sur un disque optique numérique en détruisant des parties d'information qui y sont contenues à l'aide de détériorations de la surface contenant l'information.1) Device consisting in coding a serial number on a digital optical disc by destroying parts of information contained therein by means of deteriorations of the surface containing the information. 2) Dispositif selon la revendication 1 caractérisé en ce que les détériorations sont produites par une série de trous circulaires répartis sur le disque selon un code représentatif du numéro de série.2) Device according to claim 1 characterized in that the damage is produced by a series of circular holes distributed on the disc according to a code representative of the serial number. 3) Dispositif selon la revendication l caractérisé en ce que les détérioration sont produites par une série d'arcs électriques répartis sur le disque selon un code représentatif du numéro de série.3) Device according to claim l characterized in that the deterioration is produced by a series of electric arcs distributed on the disc according to a code representative of the serial number. 4) Dispositif selon une quelconque des revendications précédentes caractérisé en ce que l'information détruite est significative tant par sa position physique que par son contenu détruit qui ne peut être reconstruit par un contrefacteur.4) Device according to any one of the preceding claims, characterized in that the destroyed information is significant both by its physical position and by its destroyed content which cannot be reconstructed by a counterfeiter. 5) Dispositif selon une quelconque des revendications précédentes caractérisé en ce que les destructions sont produites par un mécanisme constitué d'un plateau support du disque à traiter commandé en rotation par un ordinateur et d'une tête d'application d'outil pouvant être appliqué sur le disque par ce même ordinateur. L'ensemble constitue une unité de production automatique des disque sériés objets de la présente invention. 5) Device according to any one of the preceding claims, characterized in that the destruction is produced by a mechanism consisting of a support plate of the disc to be treated controlled in rotation by a computer and of a tool application head that can be applied to disk by this same computer. The assembly constitutes an automatic production unit for the serial disks which are the subject of the present invention.
FR9503963A 1995-04-04 1995-04-04 Serial number application device for optical disc Withdrawn FR2732810A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9503963A FR2732810A1 (en) 1995-04-04 1995-04-04 Serial number application device for optical disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9503963A FR2732810A1 (en) 1995-04-04 1995-04-04 Serial number application device for optical disc

Publications (1)

Publication Number Publication Date
FR2732810A1 true FR2732810A1 (en) 1996-10-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9503963A Withdrawn FR2732810A1 (en) 1995-04-04 1995-04-04 Serial number application device for optical disc

Country Status (1)

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FR (1) FR2732810A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020492A1 (en) * 1996-11-07 1998-05-14 Imation Corp. Method and arrangement for preventing unauthorized duplication of optical discs using barriers
WO1998042099A1 (en) * 1997-03-14 1998-09-24 Summersoft Co., Ltd. New methods for protecting vital information/commercial products from illegal usage/reproduction
US6189446B1 (en) * 1999-01-07 2001-02-20 William Olliges System for the secure destruction of compact disc data
WO2004029965A1 (en) * 2002-09-30 2004-04-08 Koninklijke Philips Electronics N.V. Record carrier with multiple built-in chips
WO2004029966A1 (en) * 2002-09-30 2004-04-08 Koninklijke Philips Electronics N.V. Record carrier with multiple coupling elements

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020492A1 (en) * 1996-11-07 1998-05-14 Imation Corp. Method and arrangement for preventing unauthorized duplication of optical discs using barriers
WO1998042099A1 (en) * 1997-03-14 1998-09-24 Summersoft Co., Ltd. New methods for protecting vital information/commercial products from illegal usage/reproduction
US6189446B1 (en) * 1999-01-07 2001-02-20 William Olliges System for the secure destruction of compact disc data
WO2004029965A1 (en) * 2002-09-30 2004-04-08 Koninklijke Philips Electronics N.V. Record carrier with multiple built-in chips
WO2004029966A1 (en) * 2002-09-30 2004-04-08 Koninklijke Philips Electronics N.V. Record carrier with multiple coupling elements

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