WO1999022340A9 - Authentification de disque optique et memorisation d'informations - Google Patents

Authentification de disque optique et memorisation d'informations

Info

Publication number
WO1999022340A9
WO1999022340A9 PCT/US1998/022871 US9822871W WO9922340A9 WO 1999022340 A9 WO1999022340 A9 WO 1999022340A9 US 9822871 W US9822871 W US 9822871W WO 9922340 A9 WO9922340 A9 WO 9922340A9
Authority
WO
WIPO (PCT)
Prior art keywords
optical disc
data
optical
areas
master
Prior art date
Application number
PCT/US1998/022871
Other languages
English (en)
Other versions
WO1999022340A1 (fr
Inventor
James Weldon
Karl R Schneck Jr
Hilary S Lackritz
Jerry Smith
Mark Mclaughlin
J Bradford Merry
Original Assignee
Hide And Seek Technologies Inc
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 Hide And Seek Technologies Inc filed Critical Hide And Seek Technologies Inc
Priority to CA002311764A priority Critical patent/CA2311764A1/fr
Priority to AU12842/99A priority patent/AU769978B2/en
Priority to EP98956283A priority patent/EP1025543A1/fr
Publication of WO1999022340A1 publication Critical patent/WO1999022340A1/fr
Publication of WO1999022340A9 publication Critical patent/WO1999022340A9/fr

Links

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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/04—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
    • G06K19/041—Constructional details
    • G06K19/042—Constructional details the record carrier having a form factor of a credit card and including a small sized disc, e.g. a CD or DVD
    • G06K19/044—Constructional details the record carrier having a form factor of a credit card and including a small sized disc, e.g. a CD or DVD comprising galvanic contacts for contacting an integrated circuit chip thereon
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
    • 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

Definitions

  • the present invention relates to a data storage device that provides high data storage capabilities and is easily
  • the device can be approximately the size of a credit card.
  • the present invention can be used with both conventional magnetic card swipe readers and optical disk readers.
  • the present invention may be viewed as a combination of a typical credit card with a (magnetic or optical) strip that is read via swiping the present invention through a card swipe reader and an optical disk such as a mini compact disc (e.g., DYD).
  • I S amounts of data do not lend themselves to being carried in, for example, a wallet or purse. That is, there have heretofore been no known, readily available devices for reading and/or writing data to/from portable data storage devices, wherein the data storage devices are capable of being carried in a wallet or purse, and wherein large amounts of data (e.g., 50-100 megabytes or more) may be stored.
  • large amounts of data e.g., 50-100 megabytes or more
  • rt would be advantageous to have such a device wherein the high data storage capabilities of such a device could be easily read from or written to using substantially conventional data read and/or write devices such as compact disc readers and magnetic card swipe readers.
  • the present invention is a data storage card that includes data stored thereon using a combination of data storage mediums including a magnetic strip, and an optical storage portion (e.g., one of an optical disk or a magneto optical disc).
  • the card of the present invention is sufficiently small (e.g., approximately 2'/ 8 inches by 3 3 / ⁇ inches so that it can be used as a typical identification/financial transaction card wherein data included on the magnetic strip of the card can be swiped
  • the optical data storage portion of the card is capable of being read by a compact disc reader and/or a DVD reader when the card is rotated on the reader's optical disc spindle via the spindle penetrating hole in the card. That is the card can be used as a conventional optical disc.
  • Another aspect of the present invention is a method and system for the protection of optical disc data against copying and/or unauthorized use.
  • the present invention contemplates purposefully inducing a physical alteration of one or more portions of an optical disc surface during the manufacturing process, within the data area, for the purpose of creating either a correctable or uncorrectable defect within the data stream of an attempted read of one of the physically altered portions of the optical disc.
  • such read attempts may be performed in response to a query by a software module, either provided on an optical disc manufactured according to the present invention, or external thereto, for verifying the authenticity of the optical disc
  • the present invention does not require the changing of any specific bit, rather, it utilizes the data area of the optical disc as a "canvas" on which to "paint” or distribute defects, subject to the requirement that such defects reside within some specific area of the optical disc.
  • the physical alteration of the optical disc surface for providing the defects can be accomplished by first providing corresponding defects within an optical disk master from which the optical disk may be manufactured. Alternatively, the defects in the optical disc may be manufactured into the optical disc after the optical disc has had data from the master disc transferred to it.
  • FIGS. I A through I D show various orientations of a first embodiment of the carddisc 12 of the present invention.
  • Figs.2A through 2C show an alternative embodiment of the carddisc 12 of the present invention wherein the optical data storage area 40 is recessed in comparison to surrounding areas 50a and 50b, thereby providing protection to the optical data storage area.
  • Figs. 3A and 3B show another embodiment of the present invention wherein there is a protective cover 60 for protecting the optical data storage area 40 from damage.
  • Figs.4A and 4B provide yet another embodiment of the present invention, wherein protective offset rings 86a and 86b are provided about the optical data storage area 40 for protecting this storage area.
  • Figs.5A through 5C illustrate another embodiment of the present invention, wherein an additional optical data storage area 40a is provided on an opposite side of the carddisc 12d from that of the optical data storage area 40. Additionally, note that this embodiment provides offset protective rings 86 on both skies of the carddisc 12d.
  • Figs.6A through 6C illustrate another embodiment of the present invention, wherein there are separable portions of the carddisc
  • the carddisc of the present embodiment includes a thin film data layer 200, having potentially large amounts of data storage for storing data encoded thereon for being optically read by substantially conventional optical disc readers, and a base portion 204 upon which the layer 200 may be provided when such data storage is to be accessed.
  • Fig.7 illustrates an enlarged view of a data portion on an optical disk with pits 2010 aligned in rows or tracks extending radially outwardly in the direction 24 from a point about which the optical disk is intended to rotate when data is written or read. Further, this figure shows pit 2020 of extended length in the tracking direction 2028, wherein this extended pit is intentionally generated during the manufacturing of the optical disk and where this pit is detected as a defect in the optical disk.
  • Fig.8 is identical to Fig.7 except that the extended pit 2020 is replaced by an extended land 2022.
  • Fig.9 is similar to Figs.7 and 8, except that the intentionally manufactured defect 2026 spans multiple rows or tracks on the optical disk;
  • a card according to the present invention is disclosed (denoted hereinafter as a "CARDDISC" 12), wherein, in one embodiment, a first side of the card includes typical identification/financial card information and the second side has optical information stored substantially as is done on optical discs.
  • CARDDISC 12 is approximately the size of atypical credit card
  • the present invention may provide dual purpose functionality in that it can be used in typical magnetic card swipe readers as well as optical disc readers. Accordingly, on side 16 (Fig.
  • a magnetic reading strip 20 for storing date that can be read by card swipe readers (b) signature location 24 and imprinted identification information including: (i) the name 28 of the individual to which the CARDDISC is assigned (and/or the individual capable of providing access to the data encoded on the CARDDISC), (ii) an expiration date 32 of the carddisc, and (iii) a card holder identification number 36, wherein the name, date and identification number are embossed, printed and/or laminated or otherwise attached to the carddisc.
  • side 16 provides the information typically provided on, e.g., a credit card.
  • side 38 (Fig.
  • optical disc data is encoded in the optical data storage area 40 (shown as darkened).
  • the optical data storage area 40 of the carddisc 12 includes an optical medium that may be read, e.g., by a conventional optical reader such as a CD-ROM and/or DVD reader when the center hole 34 is aligned with a spindle of the optical reader for spinning the carddisc 12 thereabout
  • a conventional optical reader such as a CD-ROM and/or DVD reader
  • the carddisc 12 may be circular in shape or, in some embodiments, contain straight edges and/or a combination of straight and curved edges. Note that a combination of straight and curved edges may facilitate the carddisc 12 being used both for financial transaction data transfers via, e.g., in magnetic card swipe readers, as well as being used in conventional optical compact disc and DVD readers for reading and/or writing, more copious amounts of data. Moreover, the carddisc 12 can be square or rectangular in shape and may also contain some or all of the features in Figs. I A-l D.
  • protection of the optical data storage area 40 of the carddisc may be enhanced by the addition of a sleeve, wherein the optical data storage area is rotatable within the protective sleeve in a manner similar to magnetic diskettes typically used with personal computers for storing data.
  • the optical data storage area 40 may be of any type such as: (a) a read-only (e.g., CD-ROM or CD DVD), (b) read/ write-once (e-g, CD-R or DVD-R), or (c) read write many times (e.g., CD-RW or DVD-RW).
  • the optical data storage area 40 may also utilize technologies for copy protection such as optically sensitive polymers, oxidat ' rve polymers, embedded or painted defects and protection bands and software to limit or control usage as, for example, disclosed in the patent application having international application number PCT/US97/08842, herein incorporated by reference.
  • the optical data storage area 40 may also utilize other protection technologies such as encryption and/or passwords to limit access or control usage.
  • the areas 50a and 50b may include decorative artwork including pit art (where instead of using optically reflective pits and lands for encoding data bits, the pits and lands are used for creating a picture), and printed materials such as logos.
  • FIGS.2 through 5 show alternative embodiments of the present invention wherein comparable features to those in
  • Figs. I A-l D have identical numerical labels.
  • the side 38 of the carddisc 12a having the optical data storage 40 has raised decorative areas 50a, 50b. Such raised areas may be utilized to protect the optical data storage area 40 from abrasive damage when the ⁇ rddisc 12a is swiped through credit card readers for reading, e.g., the magnetic strip 20 on the opposite side (side 16) of carddisc 12a, (this opposite side including some or all of the features included in side 16 of the carddisc 12 embodiment of fig. IA).
  • the optical data storage area 40 may have a protective plastic covering 56 to further protect the optical storage area 40.
  • a carddisc 12b includes a protective cover 60 that is attached to an edge 64 by one or more hinges 70 so that the cover 60 is capable of folding adjacent to side 38 for protecting optical data storage area 40 when the carddisc 12b is used in card swipe readers, and is capable of folding adjacent to the opposite side (side 16) when the data encoded in optical data storage 40 is to be accessed.
  • protective cover 60 includes a center hole 74 that aligns with the center hole 34 when the protective cover is folded adjacent to side 16 so that an optical reader spindle can align with the center holes and spin the carddisc 12b substantially as a conventional optical disc.
  • edge 78 of the protective cover 60 may include one or more latches (not shown) that can be used for securing the protective cover 60 to the edge 82 when the protective cover is folded adjacent to side 16 and/or side 38.
  • the surface of protective cover 60 that becomes adjacent to side 38 when the side 38 is protected may also include a second optical data storage area (not shown).
  • Figs.4A and 4B an embodiment 12c of the carddisc is shown wherein side 38 includes one or more raised offset rings 86 both for protecting the optical data storage 40 from damage during use of the carddisc in a magnetic card swipe card reader, and for assisting in alignment of the carddisc when provided in an optical disc reader.
  • the offset ring 86b may be used for mounting carddisc 12c so that this ring aligns with a minidisc recess provided on a typical compact disc cradle.
  • this offset ring 86b has a radius from the center of the center hole 34 that allows this offset ring to fit within the recess that is used for aligning minidiscs within the compact disc cradle and thereby assists in aligning the carddisc with the optical reader so that the carddisc rotates properly.
  • FIGs.5A through 5C an embodiment 12d of the carddisc is shown, wherein in addition to the optical data storage area 40 being provided on side 16, there is another optical data storage area 40a provided on side 16. Accordingly, to protect the optical data storage areas 40 and 40a, the present embodiment provides offset rings 86a and 86b on side 38, and offset rings 86c and 86d on side 16. However, it will be appreciated that any of the other features for optical data protection described in previous embodiments of a carddisc can be utilized here as well.
  • a thin film data layer 200 is provided with a data storage area 40, and decorative areas 50a and 50b.
  • the layer 200 can be repeatedly attached and detached from a carddisc base 204, which in some embodiments, is dear and is sufficiently rigid to maintain a substantially planar surface 208 upon which the thin film layer 200 can be attached and reattached.
  • the layer 200 may also include a magnetic strip area (e-g-, on the same side 212 of the layer as the data storage area 40, or on an opposite side 216 of the layer 200).
  • the layer 200 may contain other forms of identification such as a user name area 28, signature location 24, one or more account numbers and an expiration date.
  • the data layer 200 can be produced by printing and/or bonding the above-mentioned data areas to, e.g., a Mylar sheet or substrate.
  • printing and/or bonding techniques can be used to provide the optical data storage area 40. That is, such techniques are capable of providing metallized optically detectable data structures corresponding to the pits and lands of compact disc data encodings.
  • various types of optical data storage technologies may be used for the data storage area 40.
  • the data storage area 40 may be read-only, write once (e.g., CDR, DVDR) and/or read- write many times (e.g-, CDRW, DDDRW).
  • the layer 200 also includes a center hole 220 that is intended to substantially align with a center hole 224 in the carddisc base 204 when the layer 200 is properly aligned on the base 204 so that similarly shaped edges coincide.
  • the base is a clear plastic that is effective for providing both proper support and for providing a surface 208 with adherence qualities that are compatible with repeatedly attaching and detaching a thin film layer 200.
  • the carddisc base 204 may be hinged along an edge such as in Figs. 3. Accordingly, in such an embodiment, the layer 200 may be placed between the hinged portions of the base 208 when data on the layer 200 is to be accessed.
  • a slot (not shown) may be provided within the thickness of the base 204, wherein a layer 200, enclosed within a laminate for providing greater rigidity, is able to be inserted within the slot when the data on the layer is desired to be read.
  • a plurality of layers 200 may be easily carried by a user in, e.g., a compact carrying case, and when desired, the user can select one of the plurality of layers 200 to be combined with a carddisc base 204 for communicating data with a compatible optical or magnetic device such as a CD or DVD optical data reader, or a magnetic card swipe reader.
  • a compatible optical or magnetic device such as a CD or DVD optical data reader, or a magnetic card swipe reader.
  • a base 204 need not be carried by a user.
  • a base 204 may be provided for use with each optical or magnetic device for exchanging data with a layer 200 selected by a user.
  • various encryption, authentication, and/or copy protection techniques may be used with the present invention.
  • chemically reactive polymers, purposefully embedded defects, and/or protection bands may be provided on either side of the layer 200 and/or the base 204.
  • the optical protection techniques disclosed in Ui. Patent Application Serial No.08/780,098 having the same assignee as the present application is incorporated herein by reference for thereby providing illustrative and enabling techniques for providing such copy protection.
  • additional copy protection techniques are also illustratively disclosed in international patent application PCT/US97/08842, which is additionally incorporated herein by reference.
  • a defect in a master disc may be created by: (a) generating a continuous data land or data pit of sufficient length in the tracking direction; or (b) generating a series of defective data lands and/or data pits of sufficient frequency and/or length and/or data encoding peculiarity in the tracking direction to induce either a correctable or uncorrectable data error when the defect is transferred to an optical disc and an attempt to read the optical disc is performed by an optical disc reader.
  • the process of mastering involves the conversion of a digital or analog source signal to code for subsequent translation into a digital pattern of pits and lands, wherein the transitions between lands and pits of the master disc are intended to then translate into readable data on an optical disc generated from the master disc.
  • the software for the present invention is intended to be incorporated into the software for controlling a master disc generating device.
  • this software modifies the code derived from the source signals by replacing portions thereof with code interleaved with one or more encodings of purposefully induced defects, in some embodiments, the appropriate coding to decode a specified encoded pattern of purposefully induced defects is incorporated into the original program content.
  • the placement of the defects is controlled such that the created errors are individually detectable.
  • One method of this may be the placement of defects in no more than every third sector, so that the effect of the normal interleaving of the original data is negated such that a detected error in a specific block of 3 sectors can be identified as being the effect of a purposefully induced defect in a specific sector.
  • this software determines the areas of a master disc in which to place each purposefully induced defect by its sector address or time code. Subsequently, the software of the present invention causes the master disc generating device to use the modified code in place of the code derived directly from the source signals to thereby generate defects on a master disc.
  • the defective code may be a continuous data pattern of T"s or a continuous pattern of "O's", which, in turn causes an LBR (Laser Beam Recorder) of a master disc generating device to either remain in an "on” condition, creating a continuous pit, or to remain "off, creating a continuous land, as one skilled in the art will understand.
  • LBR Laser Beam Recorder
  • a corresponding digital error can be generated on an optical disc generated from the disc master, wherein the error is either correctable or uncorrectable, depending on the size of the defect 20 and its position with regard to surrounding data bits.
  • an uncorrectable such continuous data pit or data land may be at least approximately 300 ⁇ m in length, and a correctable such data pit or data land may be less than approximately 300 ⁇ m in length.
  • Such a defect 20 or 22 may be of normal track width in the radial direction 24 for the optical disc medium.
  • optical discs have their data encodings created through a variety of manufacturing processes including: injection/compression molding, utilizing a metal stamper which is a generated metal part that is the "inverse image" of the original master disc, or in some cases, the original master disc, where the original master disc is inscribed with the inverse image of the final disc data pattern; and a printing method that creates the data pattern on a subsurface of the final disc. 2.
  • a mastered defect may be created that spans multiple tracks. In Fig.9, a mastered defect
  • the defect 26 is shown that is of multi-track width in the radial direction 24.
  • the defect 26 may be of sufficient length in the tracking direction 28, or include a long enough series of smaller mastered defects that are of multi-track width in the radial direction 24 so that either a correctable or uncorrectable data error is generated when a read is attempted.
  • a defect 26 can replace the legitimate data that would normally reside in that particular area.
  • a mastered defect may be etched into either a glass master or one of the series of metal parts generated from it. Accordingly, the etched defect will be duplicated in the commercially distributable optical discs that are either directly or indirectly generated from the master so that the commercially distributable optical disks have corresponding defects of sufficient length in the tracking direction or there are a series of etched defects of sufficient quantity and length in the tracking direction to cause either a correctable or uncorrectable data error to be generated when such a generated commercially distributable disk is supplied to an optical reader.
  • etching in defects may be accomplished by any means that is adequate to create the desired defect (for example: laser etching, burning, drilling, cutting, slicing, punching, etc.).
  • a defect replaces the data that normally resides in the area etched.
  • the defect can be either of normal track width or of multi-track width in the radial direction 24 for that particular optical disc medium.
  • Such etching may also be controlled by a locating technique which provides a similar data location accuracy as provided by the software program described herei ⁇ above for placing defective data pits or data lands on a master disc.
  • This locating technique may involve: (a) inscribing a radial line outwardly from a center of the surface of the disc; (b) utilizing testing device to locate both this radial line and the location of a specific data area with respect to the radial line; and (c) having the testing device provide the position of the specific data area with respect to the radial line, wherein the defect will be created on this specific area.
  • one or more defects can be created in each commercially distributable optical disc by physically damaging each such optical disk directly during the manufacturing process by techniques such as cutting, slicing, punching, burning, etching, painting, sticking the disk with a sharp pointed implement, etc., so that a purposefully induced defect of sufficient length in the tracking direction is produced, or a series of physical defects of sufficient quantity and length in the tracking direction is produced to generate one or more correctable or uncorrectable data errors when a read of the defective area is attempted.
  • the defects for the present embodiment replace the data that would normally reside in the particular areas having the defects.
  • such one or more defects are either of normal track width or of multi-track width in the radial direction for the particular optical disc medium being utilized.

Abstract

L'invention concerne un dispositif de mémorisation d'informations compact (12) dont les dimensions sont approximativement celles d'une carte de crédit. Ce dispositif est capable de mémoriser de grandes quantités d'informations (par exemple 50 à 100 mégaoctets), et peut coder des informations de manière rectiligne et magnétique (20), de sorte que ces informations peuvent être lues par un dispositif traditionnel de lecture d'informations par balayage (par exemple un dispositif de balayage de cartes magnétiques), et par des lecteurs de disque optique généralement conçus pour lire des pistes d'informations optiques codées en spirale (40). L'invention concerne également un procédé destiné à former volontairement des défauts sur des disques optiques, afin d'authentifier les disques optiques ainsi fabriqués.
PCT/US1998/022871 1997-10-28 1998-10-28 Authentification de disque optique et memorisation d'informations WO1999022340A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002311764A CA2311764A1 (fr) 1997-10-28 1998-10-28 Authentification de disque optique et memorisation d'informations
AU12842/99A AU769978B2 (en) 1997-10-28 1998-10-28 Optical disc authentication and data storage
EP98956283A EP1025543A1 (fr) 1997-10-28 1998-10-28 Authentification de disque optique et memorisation d'informations

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US6365697P 1997-10-28 1997-10-28
US60/063,656 1997-10-28
US8732498P 1998-05-29 1998-05-29
US60/087,324 1998-05-29

Publications (2)

Publication Number Publication Date
WO1999022340A1 WO1999022340A1 (fr) 1999-05-06
WO1999022340A9 true WO1999022340A9 (fr) 1999-07-15

Family

ID=26743648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/022871 WO1999022340A1 (fr) 1997-10-28 1998-10-28 Authentification de disque optique et memorisation d'informations

Country Status (4)

Country Link
EP (1) EP1025543A1 (fr)
AU (1) AU769978B2 (fr)
CA (1) CA2311764A1 (fr)
WO (1) WO1999022340A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6747930B1 (en) 1996-12-24 2004-06-08 Hide & Seek Technologies, Inc. Data protection on an optical disk
AU757636B2 (en) * 1999-02-24 2003-02-27 Shuffle Master, Inc. Inspection of playing cards
DE29914038U1 (de) * 1999-08-11 1999-11-18 Ahrens Hans Joachim Magnetkarte
DE19943092A1 (de) * 1999-09-09 2001-03-15 Orga Kartensysteme Gmbh Datenträger mit Halbleiterschaltkreis und abtrennbarem optischen Speichermedium
GB0025897D0 (en) * 2000-10-23 2000-12-06 Encore Holdings Ltd An optically readable carrier and an adapter therefor
US6931382B2 (en) 2001-01-24 2005-08-16 Cdck Corporation Payment instrument authorization technique
US7810735B2 (en) 2001-05-15 2010-10-12 Inadam Corporation Computer readable universal authorization card system and method for using same
US8403228B2 (en) 2001-05-15 2013-03-26 Inadam Corporation Computer readable universal authorization card system and method for using same
WO2002093457A1 (fr) 2001-05-15 2002-11-21 Mashi Madani Systeme de carte d'autorisation universelle lisible par un ordinateur et son procede
AU2002365480A1 (en) 2001-11-22 2003-06-10 Liberate Software Limited Portable storage device for storing and accessing personal data
FR2836930B1 (fr) 2002-03-11 2005-02-25 Usinor Acier lamine a chaud a tres haute resistance et de faible densite

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542288A (en) * 1981-02-27 1985-09-17 Drexler Technology Corporation Method for making a laser recordable wallet-size plastic card
US4544835A (en) * 1983-12-29 1985-10-01 Drexler Technology Corporation Data system containing a high capacity optical contrast laser recordable wallet-size plastic card
US4523304A (en) * 1981-04-17 1985-06-11 Matsushita Electric Industrial Co., Ltd. Optical data recording and reproducing apparatus
US5289451A (en) * 1984-11-29 1994-02-22 Canon Kabushiki Kaisha Optical information recording/reproduction apparatus including means for detecting the type of recording medium
JPS63109366U (fr) * 1986-12-27 1988-07-14
US5073880A (en) * 1987-12-18 1991-12-17 Hitachi, Ltd. Information recording/reproducing method and apparatus
US5233584A (en) * 1990-09-04 1993-08-03 International Business Machines Corporation Optical disk device using high and low data-sensing criteria plus device recalibration for error control
US5544140A (en) * 1991-02-04 1996-08-06 Dolby Laboratories Licensing Corporation Storage medium and apparatus and method for recovering information from such medium by oversampling
US5587981A (en) * 1995-09-05 1996-12-24 Kamatani; Yasuo Multi-standard optical disk reading method having distinction process

Also Published As

Publication number Publication date
WO1999022340A1 (fr) 1999-05-06
EP1025543A1 (fr) 2000-08-09
AU769978B2 (en) 2004-02-12
AU1284299A (en) 1999-05-17
CA2311764A1 (fr) 1999-05-06

Similar Documents

Publication Publication Date Title
US6747930B1 (en) Data protection on an optical disk
JP2957827B2 (ja) 光ディスク及び識別情報を有する光ディスクの製造方法並びに光ディスクの恒久的マーキング方法
US6484940B1 (en) Data storage card having both linear and annular data regions
US20030132300A1 (en) Data storage card having both linear and annular data regions
KR0181707B1 (ko) 광기록 매체
US20020067674A1 (en) Method and system for authenticating an optical disc using purposefully provided data errors
EP1025560A1 (fr) Dispositif support optique pouvant etre protege contre la copie, et methodologie associee
WO2007019473A2 (fr) Activation et desactivation de dispositif de memoire
AU769978B2 (en) Optical disc authentication and data storage
EP1093602B1 (fr) Marque lisible indelebile sur support d'information
NL1012487C2 (nl) Leesbaar onuitwisbaar merkteken op opslagmedium.
US20020020740A1 (en) Financial transaction card
US7596069B2 (en) Optical medium aligned information system and method
US20030136846A1 (en) Optical memory card, method of manufacture, and driver for card
CN215527247U (zh) 一种防伪光盘
WO2002059881A9 (fr) Procede et systeme permettant d'authentifier un disque optique au moyen d'erreurs de donnees introduites volontairement
JP3411272B2 (ja) 光ディスク
JPS62184628A (ja) 光デイスク駆動装置
JP3485073B2 (ja) 光記録媒体の製造方法
US20040174787A1 (en) Recordable medium having a data recording area with an embedded non-recordable zone
JP2006202429A (ja) 記録媒体およびその製造方法
JP2002245619A (ja) 光記録媒体の発行システム
JP2001023248A (ja) 光記録媒体
AU2002247036A1 (en) Method and system for authenticating an optical disc using purposefully provided data errrors
JPH01296444A (ja) 光記録媒体

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: C2

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: C2

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

COP Corrected version of pamphlet

Free format text: PAGES 1/9-9/9, DRAWINGS, REPLACED BY NEW PAGES 1/9-9/9; DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
NENP Non-entry into the national phase

Ref country code: KR

ENP Entry into the national phase

Ref document number: 2311764

Country of ref document: CA

Kind code of ref document: A

Ref document number: 2311764

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 1998956283

Country of ref document: EP

Ref document number: 12842/99

Country of ref document: AU

WWP Wipo information: published in national office

Ref document number: 1998956283

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 12842/99

Country of ref document: AU

WWW Wipo information: withdrawn in national office

Ref document number: 1998956283

Country of ref document: EP