Classifications

• • 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
  • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
  • G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
  • G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
  • G11B20/00768—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
• • 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
  • G11B20/10—Digital recording or reproducing
  • G11B2020/10833—Copying or moving data from one record carrier to another

Definitions

• the present invention relates to the field of securing digital data records, to combat abusive copying. It relates more particularly to the management of intellectual property rights relating to multimedia compact discs
• US patent US6425098 describes a method for protecting data recorded on an original recording medium, from copying by means of an unauthorized data reading device.
• the data is coded in accordance with standard 908 of the International Electronic Commission.
• a part of the coded data is modified to allow the introduction of a change in the sub-code channel Q of the data, so that the modified data are incompatible with the application of standard 908 used in the reading device of data, but do not prevent the data from being read after recording.
• the data, including the modified data is recorded on the original recording medium, an application which allows the reading of the recorded data, operating by being substantially unaffected by changes made to the data, but a substantially irreparable error occurring during unauthorized copying of the original recording medium.
• WO2075735 describes a copy protected compact disc which is configured to be able to provide access to digital music content subject to an electronic rights protocol to computer users while preventing audio extraction digital digital music content, which could be used to copy and possibly propagate illegal copies of the content.
• the copy-protected compact disc preferably includes a first session which includes standard digital audio content, in a format that can be played by a conventional compact disc player. It also includes a second session which is configured to provide a user computer with access to an alternative form of the same digital audio content, but which is subject to an electronic rights protocol, such as a protocol requiring a key for play or copy audio content.
• the disc is further provided with a copy protection system which prevents a user computer from identifying standard digital audio content as such and which directs the computer to the second session and the alternative audio content.
• This copy protection system is preferably a configuration of control data which is located in the white start-of-session area of the compact disc.
• the aim of the present invention is to propose a solution respecting the two apparently contradictory constraints:
• the invention relates first of all to an operating system of information media allowing the control of the copy, comprising:
• the system includes means for modifying standard IT equipment in order to allow conditional duplication of said physical media, • duplication producing a recording different from the original recording, non-duplicable.
• the original physical medium is for example an optical or magneto-optical medium: - a CD a CD-R a DVD a DVD-R
• the original physical medium can also be a removable mass memory, for example a memory card of the mmc, flash or memorystick type.
• the original physical medium as well as the physical medium for duplication include: a single ROM session or an audio session and a ROM session.
• the computer equipment includes a means of watermarking duplicate records, for example of the watermarking type.
• the IT equipment also contains a means of generating a fingerprint.
• digital duplicate records for example of the fingerprint type.
• the computer equipment includes a duplication means analyzing the characteristics of the recording and triggering of a procedure for verifying the duplication conditions and for controlling the burning of protected copies only when the duplication conditions associated with the characteristics of the registration are valid.
• the computer equipment also comprises a control means comprising a base of identifiers and authorizations associated with the identifiers, the verification procedure consisting in verifying the state of the authorizations corresponding to the identifier
• the identifiers are identifiers of at least part of the original support.
• the identifiers are identifiers of the user who owns said original medium.
• the identifier of the user who owns the original physical medium can be of the electronic signature, email address, or email type.
• the updating information modifies the state of an authorization counter.
• the identifier of the original medium is a unique identifier associated with the physical medium.
• the identifier of the original medium is an identifier of the computer equipment having carried out the first duplication.
• the verification procedure is done automatically, the computer equipment transmitting information directly to the server for updating the authorizations associated with the identifier after duplication.
• the verification procedure is carried out in a non-automatic manner, the user owner of the original medium transmitting a key for updating the authorizations.
• this key is an identifier of the original medium, an identifier of the user who owns the original medium, or a combination of these two identifiers.
• FIG. 1 represents a schematic view of a system according to the invention.
• FIG. 1 represents an example of architecture for the implementation of the invention.
• the invention uses a recording medium, in the example a CD (1).
• Digital information is recorded with a non-standard coding format, whether digital audio or video files or programs computers, or associations of several files of different nature.
• This is particularly a double session CD or DVD, with an audio or audiovisual session, and a ROM session. They are also CDs with additional content (bonus) in high compression video.
• CD or DVD can have a single ROM session.
• the preparation of the matrix for pressing the discs is carried out with an encryptor specific to the operator of the broadcasting system.
• the disc is read with conventional equipment comprising an appropriate reader and computer equipment (2), for example a microcomputer or a dedicated reader.
• This equipment comprises, in known manner, software or hardware means (3) for processing the signals delivered by the reader (2).
• the decompression algorithms do not allow the restitution of the information recorded due to the specific encryption.
• Other solutions for inhibiting the operation of the standard “player” (3) can be provided.
• An application (4) for example a specific “plug-in” or “player” is recorded on the computer equipment. It is this application that performs signal processing and content rendering -
• the copy of the disc is conventionally carried out with functions of recording and reproduction of the “player” (3). These are not effective due to the difference between the encryption format of the original CD (1) and that of the player (3).
• the application (4) includes a duplication function which can be activated only when a condition is verified.
• This condition is for example constituted by the number of previous duplicates, or by the profile of the applicant, or even by a financial condition.
• the application queries the status of a saved or calculated marker, associated with an identifier of the CD during operation.
• This marker can be recorded or calculated on a server (5) with which the equipment (2) communicates via a communication interface (6), or on a medium associated with the CD, for example a memory card, or a medium. rewritable personalized recording. It could still be a recordable layer of the CD itself.
• the recorded marker interrogated by the application for the delivery of copy rights is not associated with the CD in use, but with the user owner of the CD himself.
• the rights to copy may be granted to the natural person and no longer just to a machine.
• the application (4) may also include means for marking the copy.
• These means are of known type, and they are, for example, tattooing means by watermarking, or digital fingerprinting by fingerprint.
• tattooing means by watermarking, or digital fingerprinting by fingerprint.
• the copy thus marked it will then be possible to know, depending on the type of marking, the user who made the copy, or the original medium used for the copy.

Applications Claiming Priority (3)

Publications (1)

Family

ID=32338684

Family Applications (1)

Country Status (7)

Cited By (1)

Family Cites Families (8)

• 2002
  • 2002-12-11 FR FR0215658A patent/FR2848687B1/fr not_active Expired - Fee Related
• 2003
  • 2003-12-11 EP EP03799715A patent/EP1570332A2/de not_active Withdrawn
  • 2003-12-11 WO PCT/FR2003/050159 patent/WO2004055649A2/fr not_active Application Discontinuation
  • 2003-12-11 JP JP2004559847A patent/JP2006510100A/ja active Pending
  • 2003-12-11 CA CA002508874A patent/CA2508874A1/fr not_active Abandoned
  • 2003-12-11 AU AU2003299418A patent/AU2003299418A1/en not_active Abandoned
• 2005
  • 2005-06-06 US US11/146,096 patent/US20050280913A1/en not_active Abandoned

Non-Patent Citations (1)

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