[go: up one dir, main page]

WO2003017265A1 - Support d'enregistrement - Google Patents

Support d'enregistrement Download PDF

Info

Publication number
WO2003017265A1
WO2003017265A1 PCT/JP2002/007620 JP0207620W WO03017265A1 WO 2003017265 A1 WO2003017265 A1 WO 2003017265A1 JP 0207620 W JP0207620 W JP 0207620W WO 03017265 A1 WO03017265 A1 WO 03017265A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
center
recording
substrate
optical
Prior art date
Application number
PCT/JP2002/007620
Other languages
English (en)
Japanese (ja)
Inventor
Nobutake Kagami
Original Assignee
Sony Corporation
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 Sony Corporation filed Critical Sony Corporation
Publication of WO2003017265A1 publication Critical patent/WO2003017265A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/045—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 the record carrier being of the non-contact type, e.g. RFID, and being specially adapted for attachment to a disc, e.g. a CD or DVD
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film

Definitions

  • the present invention relates to a recording medium in which a disc-shaped optical recording section and an IC chip are mounted on the same substrate.
  • CD-type discs such as compact discs for music (CDDA) and CD-Read Only Memory (CD-ROM)
  • CD-ROM CD-Read Only Memory
  • write-once or rewritable optical disks such as CD-Recordable (CD-R) and CD-ReWriteble (CD-RW) have become popular, and now 3.5-inch flexible disks (MFD) Has become widely accepted as a relatively inexpensive storage device.
  • CDs compact discs
  • CDDA compact discs
  • CD-ROM compact discs
  • CD-Rs and CD-RWs which have not yet been widely used but are expected to grow in the future, are also on sale, a printable type that can print the label side with an ink jet printer has been released. Inkjet printers corresponding to this are also available from several companies. Thus, with the spread of circular CD-based optical disks, it can be said that card-shaped CD-based disks have also begun to spread.
  • non-contact IC cards that do not touch the terminal device and the IC chip are: 1High security by advanced encryption processing and mutual authentication 2No physical contact between the terminal for reading and writing data overnight It has the following features: (3) low consumption, (3) high communication speed, and short processing time (approximately 1/10 of contact type).
  • the applications are also diverse, including (1) library management of books, rental management, (2) management of video ZCD / DVD rental stores, inventory management, (3) event venues, amusement parks, sports facilities ( For example, entry / exit management for ski lifts), (4) medical reception management, medical record management, medical record shelf search, (5) business VTR library management, (6) home delivery distribution management, (7 ) Customer management at cleaning stores, (8) Passenger luggage management at airports, (9) Security applications in various cases, (10) Inventory management in warehouses, (1 1) Electric train tickets, (1 2) It can be used for parking lot ticket applications, (13) toll road charging system applications, etc.
  • the data recording capacity of contactless IC cards is about 8 kBy te at the largest, and even if they are widely used, low-capacity data of 1 kBy te or less are the mainstream due to price restrictions, so multimedia It is not suitable for storing images, audio, and video.
  • non-contact IC cards are expected to be used in a variety of applications, their use has often been limited due to the limited storage capacity.
  • a card-shaped recording medium in which a non-contact IC chip and an optical disk are mounted on the same substrate, especially a CD with a read-write infrastructure It is considered that the value of commercialization is high because the system equipped with a system-based optical disk is relatively inexpensive, has a large recording data capacity, and is excellent in portability and convenience due to its card form. , Attention has been paid.
  • an optical disk with a non-contact type IC chip mounted an optical disk with a non-contact type IC chip mounted at the center of the disc-shaped optical disk, that is, at the outer peripheral edge of the hole for inserting the rotation center axis. It is disclosed in Japanese Patent Application Laid-Open No. 8-161790.
  • Japanese Patent Application Laid-Open No. HEI 10-101 discloses a recording medium in which a recording unit such as an optical disk or a magnetic disk and an integrated circuit (IC chip) are mounted on a card-like substrate, and a holder means for loading the recording medium into a disk drive. — It is disclosed in Japanese Patent Publication No. 171961.
  • the playback speed of CD-ROM drives tends to be faster, such as 24x CAV (constant angular velocity), 32x speed, or 50x speed CAV.
  • the recording speed of write-once CD-Rs is 16x CLV (constant linear velocity).
  • the recording speed of rewritable CD-RWs has been increased from 4x CLV to 10x CLV.
  • Japanese Patent Application Laid-Open No. 8-161790 merely mounts an IC chip on an optical disk, and does not disclose suppression of imbalance due to mounting the IC chip. Therefore, the optical disk with the IC chip is mounted on the disk drive. When it was loaded and rotated, there was a possibility that imbalance would occur and stable recording or playback operation could not be performed.
  • an optical disk or a magnetic disk and an IC chip are mounted on a card-shaped substrate.
  • the recording medium becomes unbalanced during rotation, and there is a possibility that an uncorrectable data error may occur in the recording or reproduction of the recording medium, and the operation may not be performed stably.
  • the recording medium of the present invention comprises a disc-shaped optical recording unit and an IC chip mounted on the same substrate, and rotates about the center of the optical recording unit as a rotation center. It is characterized by the fact that it is aligned with the center of rotation.
  • the recording medium having the above configuration it is possible to suppress the occurrence of vibration due to imbalance when the recording medium is loaded in the disk drive and rotated, so that the recording medium can be stably recorded or reproduced. Is possible.
  • 1A to 1B are a plan view and an AA ′ sectional view showing an example of the recording medium of the first embodiment.
  • 2A to 2B are a plan view and a cross-sectional view taken along the line CC 'showing an example of the recording medium of the second embodiment.
  • FIG. 1A is a plan view of the recording medium of the first embodiment
  • FIG. 1B is a cross-sectional view taken along the line AA ′ in FIG. 1A.
  • the recording medium in the present embodiment is a rectangular plate.
  • a disc-shaped optical recording unit 21 and an IC module 31 are mounted on a substrate 11 formed into a card shape. It was done.
  • the recording medium in the present embodiment is in the form of a card of 58 mm ⁇ 85 mm and has a thickness of 1.2 mm.
  • a hole 12 into which a rotation center axis is inserted when a recording medium is loaded into a disk drive is formed through the substrate 11.
  • the hole diameter of the hole 12 is 15 mm.
  • center c of the recording medium coincides with the center of the hole 12 of the optical recording unit 21 .
  • the intersection of two rectangular lines D and E drawn on the rectangular substrate 11 is defined as the center c of the recording medium.
  • center c it is simply referred to as center c.
  • the recording medium of the present embodiment is loaded into a disk drive, and the recording medium is rotated with the center of the hole 12 (that is, the center c) as the center of rotation d.
  • the optical recording unit 21 has information Information is recorded.
  • the optical recording unit 21 is reproduced by picking up the reflected light of the laser light h from the optical recording unit 21.
  • the optical recording unit 21 is configured according to the specification of the CD-R. Shall be As shown in FIG. 1B, when the surface of the substrate 11 on which the laser beam h is incident is the first surface 13 and the back surface is the second surface 14, the optical recording section 21 is formed on the second surface 14 side.
  • an optical pickup guide groove (group portion) (not shown) is formed along the recording track of the optical recording portion 21 located at the center of the second surface 14.
  • group part a wobble (meandering) is formed, and time information for addressing is recorded.
  • part that is accessed first in the group section, information indicating the start and end of the group section, the type of disk, information on the optimum recording conditions, etc. are recorded in advance in the page of the group section. Configuration.
  • a lead-out area 26 is provided at the end of the dull section.
  • a recording layer 22 made of a cyanine-based material and a reflective layer 23 made of a silver alloy are provided on the upper surface of the concave / convex pattern (not shown) of the group portion formed on the optical recording portion 21 on the second surface 14.
  • a protective film layer 24 made of a UV-curable resin is applied to the entire surface of the second surface 14 and sequentially laminated. Further, a label printing layer (not shown) is formed on the protective film layer 24.
  • the label printing layer is formed by screen printing using an ultraviolet curing ink.
  • the recording layer 22 and the reflection layer 2 are illustrated as being flat, but corresponding to the concave / convex pattern formed on the optical recording portion 21 on the second surface 14. 3 are also formed along the irregularities, respectively, and it is assumed that the protective film layer 24 is formed in a state where the irregularities are buried.
  • the recording medium on which the optical recording section 21 as described above is formed is loaded into a disk drive, and a laser beam h is irradiated from the first surface 13 side. As a result, areas having different reflectivities (recording pits) are formed in the recording layer 22 and recording is performed. Then, the optical recording section 21 is reproduced using the fact that the reflectivity of the laser beam h reflected by the reflection layer 23 is different between the recorded pit and the unrecorded section.
  • the IC module 31 includes, for example, a ROM (Read Only Memory) i for holding data, a RAM (Random Access Memory) power, an IC chip, and an antenna coil pattern. Are mounted on a thin film.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the IC module 31 is housed and fixed in a concave portion 41 formed on the first surface 13 of the substrate 11, and the upper portion thereof is subjected to laminating processing by a transparent over sheet, and the IC module is processed. 3 1 is enclosed.
  • the IC module 31 By enclosing the IC module 31 in this way, it is possible to process information on the recording medium in a non-contact state.
  • a contact type may be used.
  • the concave portion 41 in which the IC module 31 is sealed is formed outside the lead-out area 26 of the optical recording portion 21 in order to secure the data area of the optical recording portion 21 to the maximum. I have.
  • the laser that enters the optical recording section 21 from the first surface 13 side by the enclosed IC module 31 Light h may be obstructed.
  • the concave portion 41 is preferably formed on the first surface 13 of the substrate 11, and when formed on the second surface 14, the entire surface of the optical recording portion 21 is coated with the recording layer 22 and the like. In the step of forming, there is a possibility that the unevenness is caused by the concave portions 41 and the appearance is impaired. However, if there is no problem with the application state of the recording layer 22 on the second surface 14, the concave portion 41 may be formed on the second surface 14.
  • the recording medium of the present embodiment includes a center of gravity o of the entire recording medium, It is adjusted so that the rotation center d of the medium matches.
  • the center c of the recording medium coincides with the center of rotation d
  • the center of gravity o and the center of rotation d substantially coincide with each other when the IC module 31 is not mounted. Therefore, the volume of the concave portion 41 is adjusted so that the weight of the IC module 31 mounted on the recording medium is equal to the weight of the substrate 11 corresponding to the volume of the concave portion 41, or By adding a balance to 31, the bias of the center of gravity o due to the mounting of the IC module 31 can be eliminated, and the center of gravity o and the center of rotation d can be matched.
  • the position of the concave portion 41 only needs to be outside the lead-out area 26 of the optical recording portion 21 and there is no other limitation.
  • a stamper for the optical recording unit 21 that has been cut using a CD-R formatter is created.
  • the present stamper is for forming a concavo-convex pattern formed on the substrate 11 such as a concave portion and a land portion of the optical recording portion 21 in a spiral shape.
  • time information is recorded by forming a wobble (meandering shape) in the group portion, but the start time of the door area 26 recorded in the lead-in area 25 is determined by the recording medium. De
  • the disc is loaded into the disk drive, make settings in consideration of the maximum recordable time so that the drive does not accidentally access the outside of the optical recording section 21.
  • the substrate 11 is formed using a card-shaped mold.
  • a stamper for forming a concavo-convex pattern of the optical recording section 21 is arranged on the side of the mold where the second surface 14 of the substrate 11 is formed. Also, on the side where the first surface 13 is formed, a concave portion 41 for enclosing the IC module and a convex portion for forming the hole 12 of the optical recording portion 21 are formed. Shall be.
  • the substrate 11 is molded into a card shape by injecting a resin such as a polycarbonate by an injection molding machine using a mold as described above.
  • the second surface 14 of the card-shaped substrate 11 molded in this way is a cyanine-based recording material serving as the recording layer 22. That is, a dye having a molecular structure represented by the following formula (1) (1-1 butyl- [5- (1-butyl-3,3-dimethylpentes [e] indrin-2-ylidene) -1, 3-pentagenenyl] -3 , 3-Dimethyl-1H-benz [e] indolinium) dissolved in an organic solvent to prepare a dye solution, and the solution was dropped at the center of the substrate surface with the guide groove, and then dried. And a film thickness of 100 nm was obtained.
  • a cyanine-based recording material was used as the recording material, but the recording material is not limited to this, and a phthalocyanine-based dye, an azo-based dye, or the like may be used.
  • a reflection layer 23 having a thickness of 40 nm is formed on the recording layer 22 by using a silver alloy (AgPdO.9Cu1.0% by weight) using a sputtering apparatus.
  • a silver alloy is used as the material, but gold may be used.
  • the RF magnetron sputtering method was used as sputtering conditions. The ultimate pressure was 4 ⁇ 10-3 (Pa), the sputter pressure was 0.76 (Pa), and the deposition power was 500 (W).
  • the sputtering gas and atmosphere were Ar, and the gas flow rate was 20 (sc cm, standard cubic centimeters per minute).
  • a protective film layer 24 made of an ultraviolet curable resin containing an oligoester acrylate having a methacrylate group or an acrylate group is further formed on the reflection layer 23 by spinning all over, and a film thickness of 10 jm I got An optical recording section 21 (CD-R section) is formed.
  • a label printing layer is formed on the protective film layer 24 by screen printing using an ultraviolet curable ink.
  • the IC module 31 is housed and fixed in the concave portion 41 formed on the first surface 13 (the surface on which the laser light h is incident) of the substrate 11.
  • the transparent oversheet is covered and press-laminated to obtain the recording medium of the present invention.
  • optical information was reproduced at a linear velocity of 1.2 m / s and a laser power of 0.7 mW in a room temperature environment, and a reflectance of 72% was obtained.
  • the recording medium having the above-described configuration for example, information recorded in the IC module 31 can be confirmed in a non-contact state, and the optical recording unit 21 has a relatively large capacity. Information can be recorded in advance, and recording or reproduction can be performed.
  • the center of gravity o of the entire recording medium is adjusted to coincide with the rotation center d of the recording medium, the imbalance of the recording medium can be suppressed to, for example, 5 g ⁇ mm or less. For this reason, even when the recording medium is loaded in the disk drive and the recording medium is rotated at a high speed, the vibration during the rotation does not occur. As a result, the tracking support and the focus support of the optical pickup of the drive are stabilized, and the recording / reproducing operation can be performed reliably.
  • the recording medium since the position of the center of gravity is adjusted by the recording medium itself, there is no need for a holder means corresponding to the recording medium, and a normal optical disk drive can be used. Absent. Further, in the present embodiment, since the center c of the recording medium coincides with the center of rotation d, the recording medium can be more reliably switched to the disk drive, and the recording or reproducing operation can be performed stably. Can be done.
  • the weight of the IC module 31 and the IC module 3 The weight added by mounting the IC module 31 is calculated based on the weight of the substrate 11 corresponding to the volume of the concave portion 4 1 for enclosing the concave portion 4 1, and the concave portion 4 1 with respect to the rotation center d is obtained. Adjust the position.
  • the center of gravity o of the recording medium and the center of rotation d are adjusted. They may be matched. Further, similarly to the case where the center c of the recording medium and the center of rotation d coincide with each other, the center of gravity o of the recording medium may coincide with the center of rotation d by adjusting the volume of the concave portion 41.
  • FIG. 2A is a plan view of the recording medium in the present embodiment
  • FIG. 2B is a cross-sectional view taken along the line CC ′ in FIG. 2A.
  • the recording medium of the present embodiment is provided with a balance 32 that serves as a weight for adjusting the center of gravity so that the center of gravity o and the center of rotation d of the recording medium match.
  • a balance 32 that serves as a weight for adjusting the center of gravity so that the center of gravity o and the center of rotation d of the recording medium match.
  • the balance 3 2 is mounted on the first surface 13 of the substrate 11 similarly to the IC module 31 in the first embodiment, and the balance 3 is mounted on the first surface 13 of the substrate 11.
  • a recess 42 for enclosing 2 is formed.
  • the concave portion 42 is formed outside the lead-out area 26 of the optical recording portion 21 similarly to the concave portion 41.
  • the concave portion 42 is formed at a position symmetrical to the concave portion 41 with respect to the rotation center d provided at the center c of the recording medium.
  • an IC module can be used as the balance 32 sealed in the recess 42.
  • the IC module By using the IC module, it can be used not only as a weight for adjusting the position of the center of gravity but also as an information recording unit.
  • the IC module used as the balance 32 need not be used as an information recording unit, and may function as a weight for adjusting the position of the center of gravity ⁇ of the recording medium. Therefore, as balance 3 2, alloy weights etc. It may be used, and it is preferable to use a material such as stainless steel which has a large specific gravity and is hard to crack.
  • balances 32 are arranged around the rotation center d of the recording medium. Evenly arranged so as to surround the optical recording unit 21 And adjust the position of the center of gravity o.
  • a convex portion for forming a concave portion 42 for enclosing the balance 32 is formed on the side on which the first surface of the mold for molding the substrate 11 is formed. It can be manufactured in the same process as in the first embodiment except that a mold is used.
  • this convex portion is formed at a position symmetrical with respect to the convex portion for forming the concave portion 41 enclosing the IC module 31 with respect to the rotation center d.
  • the balance 32 for adjusting the position of the center of gravity is mounted to match the center of gravity o of the entire recording medium with the rotation center d of the recording medium. For example, it can be suppressed to 5 g ⁇ mm or less. Therefore, even when the recording medium is rotated at a high speed by being loaded in a disk drive, the vibration during rotation is suppressed, and the tracking servo and focus servo of the optical pickup of the drive are stabilized. Recording and playback operations can be performed reliably.
  • the position of the center of gravity o can be adjusted by the weight of the balance 32 without adjusting the volume and position of the concave portion 41, so that the center of gravity of the recording medium can be adjusted. And the rotation center d can be more easily matched.
  • the recording medium in which the optical recording unit 21 is irradiated with the laser light h from the first surface 13 side has been described.
  • the present invention is also applicable to a recording medium in which the laser beam h is irradiated to the optical recording section 21 from the protective film layer 24 side, and the same effect can be obtained.
  • the IC module 31 or the balance 32 sealed on the first surface 13 side does not hinder the laser beam h entering the optical recording unit 21.
  • the positions of the recesses 41 and the recesses 42 may be inside the lead-out area 26 of the optical recording unit 21.
  • the recording layer 22 and the reflection layer 23 are formed in the reverse arrangement.
  • the label printing layer is formed on the first surface 13 side of the substrate 11. Also, an example has been described in which a CD-R is formed as the optical recording section 21, but it is also possible to form a CD-ROM or CD-RW.
  • a first dielectric layer is formed on the second surface 14 side of the substrate 11 on which the concavo-convex pattern such as the group portion and the pit portion of the CD-RW is formed.
  • silver-Injiumu antimony tellurium alloy phase is a change recording layer (Ag I n S bT e alloy)
  • a second dielectric layer Z n S ⁇ S i O 2 a silver alloy (AgPdCu) as a reflective layer are sequentially laminated.
  • the film thicknesses are 85 nm, 30 nm, 30 nm and 40 nm.
  • a protective film layer made of an ultraviolet curable resin was formed by a spin coater, and a film thickness of 10 was obtained.
  • the optical recording portion 21 of the disk is irradiated with high-power laser light using an initialization device to initialize the AgInSbTe alloy phase change recording layer by changing its phase to a crystalline state. And get a CD-RW.
  • the substrate 11 was formed using a card-shaped mold, but the center of gravity o of the entire recording medium and the recording were performed. If the rotation center d of the medium is aligned, the substrate 11 on which the concave portion 41 for enclosing the IC module 31 is formed is formed into a circular shape, and after the optical recording portion 21 is completed, It may be a method of cutting into a card shape with a single laser beam. In addition, the optical recording unit 21 is made as an optical disk separate from the substrate 11. It is later combined with the card-shaped substrate 11.
  • the recording medium of the present invention since the center of gravity of the entire recording medium is aligned with the rotation center of the recording medium, when the recording medium is loaded on a disc drive However, unbalance due to rotation can be reduced. For this reason, even when the recording medium is loaded in a disk drive and the recording medium is rotated at high speed, the occurrence of vibration during rotation is suppressed, and it is possible to prevent a data error of the recording medium due to the vibration. Recording or playback operation can be performed stably.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Credit Cards Or The Like (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

L'invention concerne un support d'enregistrement dont le déséquilibre est réduit en cours de rotation et équipé d'un élément d'enregistrement optique en forme de disque et d'une puce à circuit intégré montés sur le même substrat. Le support d'enregistrement pourvu de l'élément (21) d'enregistrement optique en forme de disque et du module (31) à circuit intégré montés sur le même substrat (11) effectue un mouvement de rotation avec le centre de l'élément d'enregistrement optique (21) comme centre (d) de rotation, et se caractérise en ce que le centre de gravité (o) du support d'enregistrement correspond au centre (d) de rotation du support d'enregistrement, c'est-à-dire le centre d'un trou (12) de l'élément d'enregistrement optique (21).
PCT/JP2002/007620 2001-08-21 2002-07-26 Support d'enregistrement WO2003017265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001249863A JP2003059115A (ja) 2001-08-21 2001-08-21 記録媒体
JP2001-249863 2001-08-21

Publications (1)

Publication Number Publication Date
WO2003017265A1 true WO2003017265A1 (fr) 2003-02-27

Family

ID=19078789

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/007620 WO2003017265A1 (fr) 2001-08-21 2002-07-26 Support d'enregistrement

Country Status (2)

Country Link
JP (1) JP2003059115A (fr)
WO (1) WO2003017265A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1617506A3 (fr) * 2004-07-13 2006-02-01 Fujitsu Limited Structure d 'antenne d 'etiquette radio pour support d'enregistrement optique et etui pour un tel support d'enregistrement optique avec un tel structure d' antenne

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007087522A (ja) * 2005-09-22 2007-04-05 Fujifilm Corp 感光性記録媒体およびその記録再生装置
JP2007087521A (ja) * 2005-09-22 2007-04-05 Fujifilm Corp 感光性記録媒体およびその記録再生装置
JP2011170592A (ja) * 2010-02-18 2011-09-01 Kyocera Corp 積層体構造物

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6440381A (en) * 1987-08-05 1989-02-10 Taiyo Yuden Kk Optical data recording medium
JPH0822412A (ja) * 1994-07-08 1996-01-23 N T T Data Tsushin Kk 光カードの光メモリ管理方式
JPH10171961A (ja) * 1996-12-11 1998-06-26 N T T Data Tsushin Kk 記録媒体及び記録媒体処理装置
JP2000132871A (ja) * 1998-10-22 2000-05-12 Hitachi Ltd ディスク及びこれを用いた記録再生装置
JP2000268415A (ja) * 1999-03-16 2000-09-29 Rohm Co Ltd ディスク状記録担体
JP2002251789A (ja) * 2001-02-27 2002-09-06 Victor Co Of Japan Ltd 光カード基板、光カード、光カード基板製造用金型、光カード基板製造方法
JP2002259932A (ja) * 2001-03-02 2002-09-13 Sankyo Kk Ｉｃカード

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6440381A (en) * 1987-08-05 1989-02-10 Taiyo Yuden Kk Optical data recording medium
JPH0822412A (ja) * 1994-07-08 1996-01-23 N T T Data Tsushin Kk 光カードの光メモリ管理方式
JPH10171961A (ja) * 1996-12-11 1998-06-26 N T T Data Tsushin Kk 記録媒体及び記録媒体処理装置
JP2000132871A (ja) * 1998-10-22 2000-05-12 Hitachi Ltd ディスク及びこれを用いた記録再生装置
JP2000268415A (ja) * 1999-03-16 2000-09-29 Rohm Co Ltd ディスク状記録担体
JP2002251789A (ja) * 2001-02-27 2002-09-06 Victor Co Of Japan Ltd 光カード基板、光カード、光カード基板製造用金型、光カード基板製造方法
JP2002259932A (ja) * 2001-03-02 2002-09-13 Sankyo Kk Ｉｃカード

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1617506A3 (fr) * 2004-07-13 2006-02-01 Fujitsu Limited Structure d 'antenne d 'etiquette radio pour support d'enregistrement optique et etui pour un tel support d'enregistrement optique avec un tel structure d' antenne
EP1786060A1 (fr) * 2004-07-13 2007-05-16 Fujitsu Limited Structure d'antenne d'étiquette radio et support d'enregistrement optique et boîtier pour support d'enregistrement optique doté d'une antenne d'étiquette radio.
US7248221B2 (en) 2004-07-13 2007-07-24 Fujitsu Limited Radio tag antenna structure for an optical recording medium and a case for an optical recording medium with a radio tag antenna

Also Published As

Publication number Publication date
JP2003059115A (ja) 2003-02-28

Similar Documents

Publication Publication Date Title
US7913270B2 (en) First surface removable optical disc within a cartridge
EP1714274A2 (fr) Bande de stockage de donnees optiques pre-formatee
JP2000509879A (ja) 両面ハイブリッドｄｖｄ―ｃｄディスク
WO2003017265A1 (fr) Support d'enregistrement
TW484135B (en) Optical recording medium and master disc for preparation thereof
TWI282549B (en) Data media, manufacturing method thereof, playing control method and drive device
WO2006130496A1 (fr) Disques optiques a nombre de lectures limite
JP2000285636A (ja) 光ディスクシステム
JPH10171961A (ja) 記録媒体及び記録媒体処理装置
US20050022225A1 (en) Optically readable carrier
TWI239517B (en) Optical recording medium and the manufacturing method thereof
US7434241B2 (en) Recording and reproducing apparatus of thin optical disc
JP3885490B2 (ja) 情報記録円盤
WO2007027120A1 (fr) Support de donnees en forme de disque
CN101093695A (zh) 一种dvdr光盘
JP2002170280A (ja) 情報記録担体
JP2004039169A (ja) 情報記録担体
JP2003006920A (ja) 情報記録媒体
Heinz et al. Current challenges in thin film production technology for optical disks
WO2005045818A1 (fr) Support d'enregistrement optique d'informations, procede d'enregistrement/de reproduction de support d'enregistrement optique d'informations, et appareil d'enregistrement/de reproduction
JP2003067978A (ja) 貼り合わせ型光ディスクの製造方法
JP2006164489A (ja) 薄型光ディスクの記録再生装置
JPH04353635A (ja) 光記録媒体
JPH04315823A (ja) 光情報記録媒体
JPH03187043A (ja) 光ディスク

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): KR US

Kind code of ref document: A1

Designated state(s): KR

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FR GB GR IE IT LU MC NL PT SE SK TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase