WO2005066958A1 - ディスクドライブ装置、ディスク信号処理システム並びにディスク - Google Patents
ディスクドライブ装置、ディスク信号処理システム並びにディスク Download PDFInfo
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- WO2005066958A1 WO2005066958A1 PCT/JP2005/000452 JP2005000452W WO2005066958A1 WO 2005066958 A1 WO2005066958 A1 WO 2005066958A1 JP 2005000452 W JP2005000452 W JP 2005000452W WO 2005066958 A1 WO2005066958 A1 WO 2005066958A1
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- Prior art keywords
- disk
- signal processing
- conductive
- electronic circuit
- disk drive
- Prior art date
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- 238000012545 processing Methods 0.000 title claims abstract description 103
- 230000003287 optical effect Effects 0.000 claims description 140
- 230000005540 biological transmission Effects 0.000 claims description 24
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- 230000006870 function Effects 0.000 abstract description 31
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable
-
- 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
- G11B23/0014—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 record carriers not specifically of filamentary or web form
- G11B23/0021—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 record carriers not specifically of filamentary or web form discs
- G11B23/0028—Details
- G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
-
- 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
- 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
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
Definitions
- Disk drive device Disk signal processing system, and disk technical field
- the present invention relates to a disk drive, a disk signal processing system, and a disk, and more particularly, to a disk drive, a disk signal processing system, and a disk that reliably transmit and receive a signal between the disk and the drive with a simple configuration.
- a disk drive device is used to read information stored in an optical disk or to write (read / write) information.
- the disk drive device places the optical disk on a turntable, clamps it with a clamper, rotates it with a spindle motor, irradiates laser light, receives reflected light from the optical disk surface, and records by demodulation. It is configured to read out signals.
- Patent Documents 1 to 3 disclose typical configuration examples of such a disk drive device.
- Patent Document 1 Japanese Patent Application Laid-Open No. Hei 11-35 5 7 4 9 (Paragraph No. [0 0 2 4] FIG. 1)
- Patent Document 2 Japanese Patent Application Laid-Open No. 2000-100 3 00 (Paragraph Number [ 0 0 1 3:! To [0 0 1 5] (Fig. 3)
- Patent Document 3 Japanese Patent Application Laid-Open No. 2000-1000-32 (paragraph numbers [0 0 1 2] to [0 0 7] Figure 1)
- optical disk in which not only a storage area but also an electric circuit such as an electronic circuit is mounted on the optical disk.
- the optical disk and the disk drive must operate completely electrically insulated, Due to the high speed rotation of the optical disk, it is not easy to transmit and receive signals between the electronic circuit mounted on the optical disk and the internal circuit on the disk drive.
- Proposed as a disk drive device of this type of optical disk is one that utilizes wireless signals for transmitting and receiving signals between the optical disk and the disk drive device.
- antennas are respectively formed on the optical disk surface and the disk drive side, and wireless signals are transmitted and received via the antennas (Patent Document 5).
- Patent Document 5 Japanese Unexamined Patent Application Publication No. Hei 8-161690 (paragraph numbers [0 0 0 0:] to [0 0 2 5] Figure 1)
- a configuration is also considered in which a light emitting / receiving circuit is formed on each of the optical disk side and the disk drive side, and optical signals are transmitted / received via the light emitting / receiving circuit.
- Patent Document 5 U.S. Pat. No. 5,119,353 (FIG. 2, columns 4 and 5) As described above, conventionally, an electronic circuit mounted on a disk surface and a disk drive are conventionally used. Transmission and reception of signals between the internal circuits of the device are performed by transmitting and receiving wireless signals via antennas formed respectively on the disk surface and the disk drive side.
- the formation of such an antenna requires a shape parameter suitable for the frequency of the radio signal—evening formation is required, and the formation of such an antenna on the disk surface requires a high-precision etching method.
- it is necessary to form a frequency conversion circuit to / from a radio frequency which is a major problem for an optical disc whose low cost is of great benefit.
- an object of the present invention is to provide a disk drive device, a disk signal processing system, and a disk that can reliably transmit and receive signals between the disk side and the disk drive device side with a low cost and simple configuration. It is in.
- Still another object of the present invention is to provide a disk drive device, a disk signal processing system, and a disk capable of reliably transmitting and receiving a plurality of signals between the disk side and the disk drive device side with a low-cost and simple configuration. It is in.
- Transmission / reception means all electrical transmissions such as “transmission”, “reception”, and “transmission and reception”. Includes the mode of exchange of information, signals, power, etc.
- a disk drive device In order to solve the above-mentioned problems, a disk drive device, a disk signal processing system, and a disk according to the present invention employ the following characteristic configurations.
- An electronic circuit for executing predetermined signal processing and a disk having a conductive portion electrically connected to the electronic circuit are mounted on a turntable, clamped by a clamper and rotationally driven. Configured to read or write information to the disk,
- the disk drive device wherein the clamper is provided with a conductive part at a position of electrical contact with the conductive part of the disk at the time of the clamping.
- An electronic circuit for executing predetermined signal processing and a disk having a conductive portion electrically connected to the electronic circuit are mounted on a turntable, clamped by a clamper and rotationally driven. Is configured to read or write information to the disc,
- the disk drive device wherein the turntable is provided with a conductive part at a position of electrical contact with the conductive part of the disk during the clamping.
- An electronic circuit for executing predetermined signal processing and a disk having a conductive portion electrically connected to the electronic circuit are mounted on a turntable, clamped by a clamper and rotationally driven. Is configured to read or write information to the disc,
- the clamper is provided with a conductive portion at an electrical contact portion with the conductive portion of the disk during the clamping, and the turntable is provided with an electrical contact portion with the conductive portion of the disk at the time of clamping.
- a disk drive device that has a conductive part on it.
- the conductive part of the clamper or the turntable is a disk drive device according to any one of (1) to (3), which is electrically connected to an internal electric circuit side.
- the conductive part of the clamper or the evening table is connected to the internal electric circuit side.
- the disk drive device according to any one of (1) to (3), which is electromagnetically connected.
- An electronic circuit which is held in contact with the holding means on the disk drive side and executes predetermined signal processing, or an electronic function unit having a function of generating, writing, or storing some kind of electronic information, is mounted.
- a disk in which a conductive portion electrically connected to an electronic functional portion is formed in a contact holding portion by the holding means is rotated together with the holding means, and the disk is read out or read from the disk in a short time.
- a conductive part electrically connected to the conductive part of the disk is provided in the holding means,
- a disk signal processing system for transmitting and receiving signals between the electronic circuit on the disk side and the disk drive side via a conductive part of the disk side and the holding means.
- a disk having a conductive portion electrically connected to the electronic circuit or the electronic function portion formed at a contact portion with the evening table is rotated integrally with the turntable;
- a disk signal processing system for reading or writing data from or to the disk is
- a conductive portion electrically connected to the conductive portion of the disk is formed at a contact portion of the evening table with the disk
- a disk signal processing system for transmitting and receiving a signal between the electronic circuit on the disk side and the disk drive side via a conductive part of the disk and the turntable.
- a conductive portion electrically connected to a conductive portion of the disk is formed at the clamp portion of the clamper;
- a disk signal processing system for transmitting and receiving signals between the electronic circuit on the disk side and the disk drive side via conductive parts of the disk and the clamper.
- An electronic circuit mounted on a turntable of a disk drive, clamped by a clamper, and executing predetermined signal processing, or an electronic function unit having a function of generating, writing, or storing some electronic information is mounted.
- a disk in which a conductive portion electrically connected to the electronic circuit or the electronic function portion is formed at the clamp portion is integrally rotated together with the clamper and the table, and the disk is mounted on the disk.
- a conductive portion electrically connected to the conductive portion of the disk is formed at the clamp portion of the clamper, and the conductive portion electrically connected to the conductive portion of the disk is connected to the turntable. Formed in
- a disk signal processing system for transmitting and receiving signals between the electronic circuit on the disk side and the disk drive side via a conductive part of the disk and the clamper or the turntable.
- a disc that is contacted and held by the holding means on the disc drive side and is integrally rotated
- An electronic function unit having a function of generating, writing, or storing some kind of electronic information is mounted, and a conductive unit electrically connected to the electronic function unit is formed at a contact holding part by the holding means. Disk.
- a disk wherein a conductive portion electrically connected to the electronic circuit is formed at the clamped portion by the clamper.
- a disc comprising a conductive portion electrically connected to the electronic circuit at a contact portion with the turntable.
- a disk comprising a conductive portion electrically connected to the electronic circuit at a position where the clamper clamps and a position where the turntable comes into contact with the electronic circuit.
- a disk mounted with an electronic circuit for executing predetermined signal processing and / or an electronic functional unit having a function of generating, writing, or storing some electronic information is held by the holding means of the disk drive device.
- a disk signal processing system for transmitting and receiving signals via a second conductive portion that is in electrical contact with the first conductive portion when holding the disk.
- An electronic circuit mounted on a turntable of a disk drive, clamped by a clamper, and performing predetermined signal processing, or an electronic functional unit having a function of generating, writing, or storing some electronic information is mounted.
- a disk in which a conductive portion electrically connected to the electronic circuit or the electronic function portion is formed at the clamp portion is integrally rotated together with the clamper and the turntable, and data is read out from the disk at a time.
- a disk drive device for performing writing wherein at the time of the clamping, a conductive portion electrically connected to a conductive portion of the disk is formed at the clamp portion of the clamper;
- a disk drive device for transmitting and receiving signals between the electronic circuit on the disk side and the disk drive side via conductive parts of the disk and the clamper.
- the disc has an information storage unit for storing information, and a program storage unit for storing a program that defines the operation of the electronic circuit or the electronic function unit.
- (1) to (21) Disk drive, disk signal processing system or disk.
- Disk drive, disk signal processing system or disk Any one of (1) to (21), wherein the electronic circuit or the electronic functional unit is formed in an area other than the contact holding part, the clamp part or the contact part with the turntable of the disc.
- Disk drive, disk signal processing system or disk Disk drive, disk signal processing system or disk.
- the electronic circuit or the electronic functional unit is formed in an area inside the information storage area of the disk other than the contact holding part, the clamp part, or the contact part with the turntable.
- the disk drive device, the disk signal processing system, or the disk according to any one of (21) to (21).
- reliable transmission and reception of electric signals between a disk and an external device are enabled by enabling reliable transmission and reception of signals between the disk and the disk drive device
- one or more electronic circuits (signal processing circuits, memories, batteries, etc.) mounted on the disk, as well as reading and writing information stored on the disk, Signals having electrical and electrical functions) and external devices can be transmitted and received with a simple configuration.
- power can be reliably supplied to the battery mounted on the disk. Therefore, it is possible to define a specific operation based on the function of one or more electronic circuits formed on each disk, and the scalability of the application field using the disk is significantly improved. You.
- discs with a remarkably expanded range of applications can increase costs simply by forming electronic circuits, such as thin-film ICs, and conductive parts, such as thin films, electrically connected to these electronic circuits on the surface of ordinary disks. Obtained with a minimum.
- a disk drive for accessing such a disk can be obtained only by adding a simple configuration, and a disk drive device with a minimum increase in cost can be obtained. Such an effect is particularly remarkable when using an optical disk which is very inexpensive but can obtain a large storage capacity.
- the conductive portion connected to the electronic circuit mounted on the disk and the holding / holding portion (electrical contact portion) of the disk of the disk drive come into direct contact with each other, thereby providing an electrical connection. Because of the connection, radio interference caused by the metal film formed on the disk surface and the surrounding metal members is not a problem at all, and there is no risk of eavesdropping due to radio wave leakage due to external radio waves, etc. There is no problem of radio interference from the Internet, and there is no restriction on the speed of signal transfer (communication).
- FIG. 1 is a plan view schematically showing a configuration of an optical disk according to another embodiment of the present invention.
- FIG. 2 is a plan view schematically showing a configuration of an optical disk according to another embodiment of the present invention.
- FIG. 3 is a plan view schematically showing a configuration of an optical disc in another embodiment of the present invention.
- FIG. 4 is a plan view schematically showing the configuration of an optical disc in another embodiment of the present invention.
- FIG. 5 is a schematic cross-sectional view for explaining the configuration of one embodiment of the optical disk drive device according to the present invention.
- FIG. 6 is a schematic cross-sectional view of a main part schematically illustrating the configuration of another embodiment of the optical disk drive device according to the present invention.
- FIG. 7 is a schematic cross-sectional view of a main part schematically illustrating a configuration of still another embodiment of the optical disk drive device according to the present invention.
- FIG. 8 is a schematic cross-sectional view of a main part schematically illustrating the configuration of another embodiment of the optical disk drive device according to the present invention.
- FIG. 9 is a plan view schematically showing a configuration of an optical disc in still another embodiment of the present invention.
- FIG. 10 is a plan view schematically showing a configuration of an optical disk according to another embodiment of the present invention.
- FIG. 11 is a plan view schematically showing a configuration of an optical disk in another embodiment of the present invention.
- FIG. 12 is a plan view schematically showing the configuration of an optical disc in another embodiment of the present invention.
- FIG. 13 is a plan view schematically showing a configuration of an optical disc in another embodiment of the present invention.
- FIG. 14 is a schematic sectional view of a schematic main portion near a turntable clamper for explaining the configuration of still another embodiment of the optical disk drive device according to the present invention.
- 1 to 3 are plan views schematically showing the configuration of the optical disc 1 according to the embodiment of the present invention.
- 4 to 8 are schematic cross-sectional views of a main part for describing the configuration of an embodiment of the disk drive device according to the present invention.
- a RAM area (information storage section) in which data such as images, music, images, etc. are stored, and a program storage section in which a predetermined program is stored are provided on the outer peripheral portion of the surface of the optical disc 100.
- an information storage area such as an R0M area is formed (not essential to the present invention).
- signal processing based on a program stored in a ROM area or another memory is executed.
- the electronic circuit 10 is formed at an arbitrary position.
- the electronic circuit 10 can of course include any components required for electronic processing such as a memory, and includes everything having any electrical and electronic functions.
- the inner peripheral portion of the optical disk (usually a transparent portion but an opaque portion) is a position corresponding to a portion held and held by the disk drive device 200 by a holding, gripping, and clamping (chucking) mechanism.
- a conductive part 20 is formed at IN
- an electronic circuit 10 is provided outside the inner peripheral part OUT
- the electronic circuit 10 and the conductive part 20 are electrically connected via the connecting part 30. It is connected.
- the electronic circuit 10 can be provided at an arbitrary position. However, since the optical disk is held with a relatively high adhesion by the clamp (chucking) mechanism of the disk drive device 200, the effect of the pressure can be avoided.
- the inner peripheral portion IN may be formed.
- Conductive part 20 may be set at the same site as the electronic circuit 10, for example, so that the electronic circuit 10 includes the conductive portion 20.
- the clamp portion (holding portion, grip portion: hatched portion) of the inner peripheral portion IN of the optical disc 100 has a conductive portion 20 in CLAMP and a clamp portion in CLAMP.
- the electronic circuit 10 can be formed in a portion of the inner peripheral portion where the clamper (holding and gripping) does not directly contact and does not receive the clamping pressure.
- the clamp portion (holding / holding portion: hatched portion) inside the inner peripheral portion IN of the optical disc 100 has a conductive portion 20 on the CL AMP, and the outer peripheral portion OUT and the inner peripheral portion IN.
- the electronic circuit 10 can also be formed at a portion other than the clamp portion 50 between them.
- a clamp portion (holding / holding portion: hatched portion) of the inner peripheral portion IN of the optical disc 100 is provided with a conductive portion 20 on the CL AMP and a further outer peripheral portion of the outer peripheral portion OUT.
- the electronic circuit 10 can also be formed in a part that is not usually used as a storage area. These electronic circuit 10 and conductive part 20 are connected by electrical connection part 30.
- the electronic circuit 10 may of course be formed in the storage area.
- the electronic circuit 100 is, for example, a circuit that executes an operation process based on a program stored in the ROM area on the optical disk surface, and the processing result is sent to the disk drive device 200 in the form described below. Sent. Conversely, it receives a signal from the disk drive device 200 side.
- the electronic circuit 10 may perform an operation based on a program stored in another storage medium, or may be configured so that the operation performs a predetermined operation.
- a memory is included, and the configuration is arbitrary.
- the predetermined processing of the electronic circuit 10 is, for example, when the information stored in the storage unit is encrypted, the encrypted information is read out, and the program stored in the ROM area is read out. There is a process of decoding based on the Further, when writing by encryption, it is also possible to perform encryption based on an encryption program stored in the storage unit.
- the encryption program and the decryption program are defined in the optical disk ⁇ , signal processing closed for each optical disk can be performed, and the closed unique Unless the processing is based on the processing, access to the disk is difficult and high security can be secured. Furthermore, if a key for decryption is individually set from the outside, higher security can be ensured. Further, processing according to a program stored in the ROM area can be executed by an electronic circuit, and the processing result processed by an external processing circuit can be stored in a storage unit. By doing so, the processing results are saved and stored only in the RAM area as the storage part of the optical disk without remaining in the external processing device, and the data to be saved and stored is processed by electronic circuits such as encryption.
- a third party cannot obtain the decrypted data unless there is a decryption program including key information for decrypting the encrypted data, and a system with extremely high security can be realized. Further, by transmitting and receiving signals between an electronic circuit or the like formed on the optical disc and an external circuit, the use fields which have not been assumed so far can be remarkably expanded.
- a thin-film conductive portion 20 is formed on the inner peripheral portion of the optical disc 100.
- the conductive portion 20 may be electrically connected to the electronic circuit 10 via a connecting portion 30 (also formed as a thin film on the surface of the optical disc 100) or may be independently connected to information. It can be a part having For example, if the conductive section 20 has some information (such as disc-specific information) on the optical disk, the information can be obtained directly from the disk drive device.
- an electronic circuit it can be an electronic functional unit having a function of generating, writing, or storing some electronic information, and the conductive unit itself includes an electronic functional unit or electronic circuit that generates some information. You may go out.
- the electronic function unit or the electronic circuit may include a conductive unit. There may be no electronic functional unit or electronic circuit.
- the conductive portion may be formed on the same surface as the storage area forming surface of the disk, or may be formed on the opposite surface.
- the optical disk 100 is placed on the turntable 210 of the disk drive device 200, clamped by the clamper 260, and driven to rotate by the spindle motor 60.
- the storage surface on which information of the optical disk is stored is formed on the outer peripheral portion OUT excluding the inner peripheral portion of the optical disk 100, and the inner peripheral portion IN is a transparent portion, a translucent or opaque portion. It is used only as a clamp site. Real truth
- the conductive portion 20 is formed in the inner peripheral portion IN.
- FIG. 5 an embodiment of the disk drive device 200 according to the present invention will be described.
- a rotary shaft 230 of a spindle motor 60 is fixed.
- a protruding portion 240 into which a central opening hole 40 formed in the center of the optical disc 100 is fitted is formed.
- the center opening hole 40 is fitted into the protrusion 240 of the turntable 210, the center position of the optical disc 100 is determined, and the optical disc 100 is placed on the turntable 210. become.
- a permanent magnet 250 is usually provided on the top of the protrusion 240.
- a conductive portion 211 is formed on the surface of the turntable 210 at a position facing the conductive portion 20 of the optical disc 100.
- FIG. 5 is simplified for easy understanding.For example, the thickness of the conductive portions 20 and 211 is larger than that of other components including the optical disc 100. However, these conductive portions 20 and 211 are thin films, and their thicknesses need not be considered in practice.
- a clamper 260 is disposed above the optical disc 100.
- the clamper 260 is provided with a magnetic part (at the position facing the permanent magnet 250 provided on the top of the protrusion 240 of the turntable 210) which is attracted by the magnetic force of the permanent magnet 250. (Not shown).
- the magnetic force of the permanent magnet 250 and the magnetic material causes the clamper 260 to sandwich the optical disk 100
- the table is in close contact with 210. In this way, the optical disk 100 is held and crunched (chucked) while the concentricity is maintained, so that the optical disk 100 is driven to rotate along with the rotation of the rotary shaft 230 of the spindle motor 60.
- clamper 260 rotates integrally with the turntable 210, but a gap is provided in the clamper 260, and the permanent magnet 250 It is also possible to provide a magnetic member which is brought into close magnetic contact with and magnetically rotates freely.
- Crumbing means, in short, all means for contacting and holding a disk as a rotating body for rotation.
- the spindle motor 60 is an independent motor, but this is because it is schematically shown.
- the magnet provided on the evening table 210 and the A thin flat motor configuration such as a rotating mechanism including a stay and a rotor, that rotates the turntable 210 around the rotation axis 230 by the magnetic action of a coil or the like provided near the Often.
- the signal transmission path is further simplified. A specific example of such a configuration will be described later.
- the conductive part 20 of the optical disk 100 and the conductive part 211 of the turntable 210 of the disk drive device 200 are closely adhered by magnetic force, and a reliable electrical connection is maintained. You. Therefore, the optical disk 100 side is electrically connected to the evening table 210 (conductive portion 211) of the disk drive device 200 side independent of the optical disk 100. Become.
- the connection of the optical disk 100 of the disk drive device 200 to the conductive part 20 of the optical disk 100 is not limited to the turntable 210, and the part that rotates integrally with the optical disk 100 and makes electrical contact therewith.
- a conductive portion may be formed at a portion of the clamper 260 corresponding to a position facing the conductive portion 20 of the optical disc 100.
- the above-mentioned two conductive parts 20 and 21 1 are provided between the electronic circuit 10 or the electronic functional unit on the optical disk 100 and the internal electric circuit on the disk drive device 200 side. Electrically connected via the.
- the disk drive device 200 places the optical disk 100 on the evening table 210, clamps it with the clamper 260, drives it to rotate, and reads information stored in the optical disk. Conversely, information can be written.
- the conductive portion 211 is provided at a portion (contact portion) corresponding to the conductive portion 20 of the optical disk 100, the conductive portion 2 Signal transmission / reception is performed between 0—2 1 1.
- the optical disk 100 and the drive table 210 on the disk drive device 200 side rotate together with the clamper 260, the signal transmission between the conductive portions is directly performed electrically. Done.
- the conductive portion 211 of the disk drive device 200 is connected to an internal electric circuit (signal processing circuit) 80.
- connection between the conductive portion 211 and the internal electric circuit 80 can be in any connection form.
- Rotating / stationary body signal transmission / reception interface for transmitting / receiving signals between the rotating body such as the rotating shaft 230 and the internal electric circuit 80 of the stationary body on the disk drive device 200 side 7
- known or known various means can be used.
- a signal transmission / reception method using slip ring can be adopted.
- the electrical connection configuration a known configuration can be adopted as the electrical connection configuration.
- the conductive part 211 may be provided on the insulating part of the turntable 210, and the route from the conductive part 211 to the rotating / stationary body signal transmission / reception interface 70 may be formed in a dedicated wiring form.
- any other connection form can be used (the same applies to the description of the embodiments below).
- a signal transmission / reception interface 70 As a rotating / stationary body signal transmission / reception interface 70, a signal transmission / reception between the conductive part 211 on the rotating body (turntable 210) side of the disk drive device 200 and the internal electric circuit 80.
- Signal transmission / reception can also be enabled by providing a means for performing the communication wirelessly or optically. In this case, although the cost is slightly increased on the disk drive device 2 side, it is not necessary to provide a signal transmitting / receiving means for each optical disk, and the merit of low cost of the optical disk can be sufficiently maintained.
- an optical path is provided along the axis of the spindle motor 60, signal light is emitted (received) from the shaft end, and signal light is received opposite to this shaft end ( If a means for emitting light is provided, blurring of the signal light due to the rotation of the rotating shaft of the spindle motor can be reduced. The same applies to the case of transmitting and receiving signals by wireless means.
- the conductive portion 211 on the disk drive device 200 side which is in electrical contact with the conductive portion 200 of the optical disk 100 is connected to the dinner table 210 holding the optical disk 100.
- the clamper 260 can be formed on both sides. Like this This makes it possible to cope with a case where the conductive portion is formed on different surfaces of the optical disc 100 or a case where the conductive portions are formed on both surfaces of the optical disc 1. This is the same in the description of the following embodiments.
- the conductive portion 20 formed on the surface of the optical disk may be a mere conductive film, it can be easily formed by vapor deposition.
- a conductive film can be attached to the surface, or can be formed by any other method than evaporation.
- a conductor such as a metal may be embedded in the clamp portion of the optical disc surface so as to penetrate the optical disc surface and slightly protrude from each surface.
- the electronic circuit 10 connected to the conductor 20 of the optical disk 100 may be formed anywhere on the optical disk, but considering the balance of the optical disk, it is as close as possible to the center of the optical disk.
- the position is preferable, and the conductive portion 20 itself can be an electronic circuit.
- the electronic circuit 10 may be a thin semiconductor IC chip or may be formed inside a disk during a disk manufacturing process.
- the inner peripheral portion of the optical disc 100 on which the conductive portion 20 is formed is usually used as a portion only for clamping.
- the conductive portion (electrode) 20 formed on the inner peripheral portion can maintain the function of the transparent portion by using a transparent electrode.
- 5 and 6 are schematic cross-sectional views of main parts schematically illustrating the configuration of another embodiment of the optical disk drive device according to the present invention.
- the spindle motor 60 for rotating the turntable 210 is displayed as an independent motor, and the turntable 230 is rotated by rotating the rotating shaft 230 thereof.
- the spindle motor is a general term for the means for rotating the turntable 210, and can be configured to have a stay and a low speed, for example,
- a flat-type rotary drive mechanism widely used at present for disk rotation can be used.
- FIG. 6 shows an embodiment based on such an example.
- the rotary drive mechanism as a spindle motor in FIG. 6 is provided below a disk-shaped rotary drive unit 220 that rotates integrally via a turntable 210 and a rotary shaft 230.
- a plurality of magnetic poles 2 21 are provided along the circumferential direction on the outer peripheral portion of the surface, while the magnetic pole 3 2 is provided on the surface of the substrate 300 fixed to the bottom surface 40 side of the housing, facing the magnetic pole 2 2 1.
- the control circuit formed on the substrate 300 changes and controls the magnetic pole of the magnetic pole 3 1 1, and based on the polarity relationship between the magnetic pole 2 2 1 and the magnetic pole 3 1 1, the rotation drive unit 2 2 Rotate 0 and the turntable 210 in the circumferential direction.
- a protruding portion 240 into which the central opening hole 40 of the optical disc 100 is fitted is formed at the center of the turntable 210.
- the center opening hole 40 of 0 0 is fitted and placed on the turntable 210.
- a permanent magnet 250 is provided on the top of the protrusion 240.
- a conductive portion 211 facing the conductive portion 20 of the optical disc 100 is formed on a predetermined portion of the surface of the evening table 210.
- a clamper 260 having a magnetic portion 270 is provided above the optical disk 100. After the optical disk 100 is placed on the turntable 210, the clamper 260 becomes permanent when the clamper 260 approaches.
- the clamper 260 Due to the magnetic force of the magnet 250, the clamper 260 is brought into close contact with the evening table 210 across the optical disc 100. In this way, the optical disc 100 is crunched (chucked) while its concentricity is maintained, and is driven to rotate with the rotation of the rotation shaft 230 of the spindle motor.
- the conductive portion 211 of the evening table 210 of the disk drive device 200 is brought into close contact with a magnetic force and is electrically connected.
- the electrical connection configuration from the conductive portion 211 on the disk drive device 200 side to the internal electrical circuit (signal processing circuit) 80 shown in FIG. 5 can be any configuration as described above.
- the rotation center (rotation center) of the rotation shaft (extension) 230 that is provided below the rotation drive unit 220 below the evening table 210 and penetrates the substrate 300 is provided.
- An electrical or optical connection section 330 is provided at the lower end, while the electrical or optical connection section 330 on the housing bottom surface 400 below the substrate 300 is the same.
- the electrical or optical connection section 410 is provided.
- the extending portion 240 is freely rotatable via a bearing portion 320 in the substrate 300.
- An electrical connection configuration can be obtained by making the electrical or optical connection portions 330 and 410 electrically contact, and an optical connection configuration can be obtained by making them optically coupled.
- the electrical connection configuration includes direct connection and connection based on signal transmission and reception by radio waves. When transmitting and receiving wireless signals, it is only necessary to provide a radio circuit and an antenna at the electrical or optical connection section 330 and the connection section 410, respectively.To obtain an optical connection configuration, It is sufficient to provide an optical / electrical conversion unit at each of the electrical or optical connection unit 330 and the electrical or optical connection unit 410, and they are installed facing each other as in this embodiment. This enables efficient signal transmission and reception.
- the electrical wiring from the conductive part 211 on the turntable 210 on the disk drive unit 200 side to the electrical or optical connection part 330 can be performed by the dedicated wiring 2 shown by a thick solid line. Electrical wiring from the electrical or optical connection 410 to the internal electrical circuit 80 is provided.
- the conductive portion 211 connected to the conductive portion 20 of the optical disk 100 on the disk drive device 200 side is provided on the turntable 210 side. It can also be provided on the 260 side.
- a conductive portion electrically connected to the electronic circuit 10 is provided on the upper surface of the optical disc 100, and a conductive portion is provided at a corresponding portion of the clamper 260 which is opposed to and contacts the conductive portion.
- a corresponding conductive portion can be provided on an appropriate portion of the permanent magnet 250 and the magnetic portion 270 that is in close contact with the permanent magnet 250.
- the conductive portion on the clamper 260 side is provided with the above-described electrical or optical connection portion provided on the upper surface of the housing (not shown).
- FIG. 7 is a schematic sectional view of a main part schematically illustrating a configuration of still another embodiment of the optical disk drive device according to the present invention.
- a clamp pin 280 for gripping (holding) the disk 100 is used as the clamp 260 in the disk drive device 200 shown in FIGS.
- a plurality (for example, three) of clamp pins 280 are provided in the circumferential direction of the projecting portion 240 of the turntable 210.
- the clamp pin 280 is provided in the circumferential direction of the side surface of the protruding portion 240 and is biased in the outer diameter direction by a spring 280 OA.
- the optical disk is pushed in from above and fixed against the spring force. . That is, the disc 100 is fixed to the turntable 210 by pushing the center opening hole 40 of the disc 100 into the protruding part 240 from above from the top against the clamp pin 280.
- the disk drive device 200 having such a configuration does not require the clamper 260 as compared with FIGS. 5 and 6, thereby simplifying the configuration and reducing the thickness. It is often applied to small electronic devices such as notebook computers.
- the other configuration in FIG. 7 is the same as the configuration in FIG. 5 and FIG.
- FIG. 8 shows still another embodiment of the present invention, and shows an example of a disk drive device used for an M ⁇ disk or an FD disk.
- a concave portion 212 is provided in the center of the turntable 21, and a convex portion 101 C of an MO disk or an FD disk 10 OA is fitted into the concave portion 212, By positioning the convex portion 214 provided at the center position on the 210 side into the central concave portion 101B of the MO disk or the FD disk 10OA, both are positioned.
- a permanent magnet 250 is provided in the concave portion 212 of the turntable 210, while a magnetic material 101A is provided in the convex portion 101C of the M0 disk or the FD disk 100OA. And both are closely fixed by magnetic force.
- a conductive portion 2 11 is provided on the upper layer of the permanent magnet 2 50 of the concave portion 2 1 2 of the turntable 2 10, and a convex portion 1 0 1 C of the MO disk or FD disk 10 1 OA magnetic material 1 0 1
- the conductive portions 20 are separately provided in the upper layer portion of A, and the electrical connection between the conductive portions 20 and 211 is established when the both are in close contact with each other.
- Other configurations such as the rotation mechanism of the turntable 210 and the electrical wiring portion from the conductive portion 211 are the same as those in the above-described embodiment, and thus illustration and description are omitted.
- the number of electronic circuits mounted on a disk is not limited to one, and a plurality of electronic circuits may be mounted.
- power is supplied to the electronic circuit from the outside.
- a transmission path for signals (all power, etc.) with the outside (disk drive side) must be formed correspondingly.
- a plurality of electrically separated conductive portions are formed on the disk, and when the disk is kept in contact with the disk, the above-described clamper, turntable, etc. on the disk drive device side are used.
- electrically separated electrically conductive portions are formed in the portion where the disk is formed, and the disk and the disk drive device side are electrically connected via these electrically conductive portions.
- the conductive part formed on the disk can be of any size and shape as shown in Figs. 1 to 5, but it must be taken into account in consideration of the alignment with the contact part of the disk drive with the disk. A configuration as described below can be used to obtain an appropriate electrical contact.
- a plurality of conductive portions that are concentric and annular or arcuate in the circumferential direction can be formed in a state where they are electrically separated in the radial direction.
- a concentric annular or arc-shaped conductive portion is provided at the corresponding position in the circumferential direction. It can be formed in an electrically separated state. By doing so, reliable electrical contact can be obtained by associating only the radial position.
- the conductive portion of the contact portion (such as a clamper or a turntable) with the disk on the disk drive device side can be formed in an annular or arc shape in order to easily and surely make contact with the conductive portion of the disk.
- the width and the circumferential length of the annular conductive portion can be made wider than the width and the circumferential length of the conductive portion of the disk.
- the conductive portion on the disk drive device side may have a limited length in the circumferential direction as shown in FIGS. 1 to 4, and the conductive portion formed on the corresponding portion on the disk side may be annular or arcuate. .
- FIG. 9 shows an example of a conductive portion formed on a disk, and shows a case where two electronic circuits 10 and 11 are mounted.
- Conductive parts 20 and 21 connected to the electronic circuits 10 and 11 via electrical connection lines 30 and 31 are formed at different positions in the radial direction.
- make sure that the conductive part formed in the contact part (clamper, turntable, etc.) with the disk on the disk drive device side does not contact the conductive part formed in the radially different part on the disk (2 Set the radial position and width of the conductive part formed on the contact part (such as a clamp turntable) with the disk on the disk drive device side so that it does not contact the conductive part on one or more disks.
- the Since the lamp area is the same as in FIGS. 1 to 4, it is not particularly shown.
- FIG. 10 shows a configuration example for supplying power required for operating the electronic circuit 10 to the electronic circuit 10 via the conductive portion 21 and the connection line portion 31.
- power is always supplied to the electronic circuit 10 on the disk via the conductive part 21 and the connection line part 31 even during the disk rotation operation. Since the power supply does not have to be affected by noise, the power supply from the disk drive unit or from the outside can be relatively easily supplied even if it comes into contact with rotating parts.
- an electronic circuit and a rechargeable battery unit may be formed on the optical disk, and the battery unit may be configured to be supplied with power from an external source through a different route from the electronic circuit and charged. Of course.
- a plurality of (two in this embodiment) conductive portions 20 and 21 formed on a disk are formed into an annular shape or an arc shape having a predetermined width, and are separated from each other in the radial direction. It is provided.
- the width and position of the conductive portion formed at the contact portion (such as a clamper or a table) with the disk on the disk drive device side are configured so as to contact only the corresponding conductive portion on the disk side.
- the inner conductive portion 21 needs wiring of the connecting portion 31 for connection with the corresponding electronic circuit 11 across the outer conductive portion 20.
- an insulating film 50 is formed on the conductive portion 1 A (at the outer peripheral portion) which is separated, and the wiring (connection line portion) 3 1 is passed over the insulating film 50. Is formed, and an insulating film 51 can be further formed thereon.
- FIG. 12 shows such an embodiment, in which three electronic circuits 10 to 12 are mounted on a disk 100, and three annular conductive parts 20, 21, from inside to outside. 22 are formed, cutout portions X and Y in which no conductive portion exists are formed in the outermost conductive portion 22, and a cutout portion Z is formed in the middle conductive portion 21.
- the conductive section 22 is connected to the electronic circuit 10 via the connection line section 30.
- connection wire 21 extending from the conductive portion 20 passes through the cutouts Z and Y to the electronic circuit.
- a connection line portion 31 connected to 12 and extending from the conductive portion 21 is connected to the electronic circuit 11 through the cutout portion X.
- An insulating film is formed on the connection wires 31 and 32 in order to prevent any contact other than the corresponding conductive portion of the clamper on the disc 100.
- the width and position of the conductive portion formed in the contact portion (clamper, turntable, etc.) with the disk on the disk drive device side correspond to the width and position corresponding to the radial direction of the disk. It is configured so that it does not come into contact with conductive parts other than the annular conductive part. Therefore, each of the three contact portions with the disk on the disk drive side is positioned in the radial range of ⁇ a.
- FIG. 13 shows that the annular lower conductive portion 20 is widened, an insulating film (not shown) is formed on the inner peripheral side of the surface of the lower conductive portion 20, and the upper conductive portion 2 is formed on the insulating film.
- 1 shows an example in which a connection line portion 30 from the upper conductive portion 21 is formed on an insulating film 50 formed thereunder and connected to the electronic circuit 10. Also in this case, an insulating film 51 is formed above the connection line 30.
- the conductive portion of the disk may be held in contact with the conductive portion of the disk drive device.
- the battery formed on the disk can be charged when the rotation is stopped, and the electronic circuit can be used.
- the conductive portion of the contact portion (a clamper, a turntable, etc.) with the disk on the disk drive device side is formed in an annular shape in order to easily and surely make contact with the conductive portion of the disk. It is desirable. It is also preferable that the width and the circumferential length of the annular conductive portion are wider than the width and the circumferential length of the conductive portion of the disk.
- a contact portion (such as a clamper or a turntable) between each electronic circuit and a disk on the disk drive device side for electrically connecting each electronic circuit is formed with a plurality of conductive portions corresponding thereto.
- a specific embodiment corresponding to the embodiment shown in FIGS. 6 to 10 will be described below.
- FIG. 14 is a simplified schematic cross-sectional view of the vicinity of the turntable and the clamper of the disk drive device based on the embodiment of FIG. 5 for the sake of simplicity.
- the configurations of FIGS. 6 to 8 can be similarly applied.
- FIG. 14 shows the conductive portion 2 formed at a different position in the radial direction of the disk in the embodiment shown in FIG. 9 (when two electronic circuits 10 and 11 are mounted on the disk).
- the conductive parts 2 1 1, 2 1 2 are located at different positions in the radial direction on the turntable 210, which is the contact part with the disk 100 on the disk drive device 200 side, at the position facing the disk 0, 21. Is formed.
- the conductive portion 211 is configured to be in contact only with the conductive portion 21 and not to be in contact with the other conductive portion 20.
- the signal transmission path from the conductive portion 211 to the internal electric circuit 80 is the same as in FIGS.
- connection part 33OA (not shown) similar to the electrical or optical connection portion 330 through the wiring 3 from the conductive portion 211, and further, the electrical or optical The connection part 33 OA is connected to the internal electric circuit 80 through the same electric or optical connection part 41 OA (not shown) as the electric or optical connection part 410 facing the OA.
- the configuration as shown in FIG. 14 can be adopted, and power is supplied through the conductive part 21 of the disk drive device and the conductive part 21 of the disk. Power is supplied to the electronic circuit 10. Further, when the disk is provided with a chargeable battery, power can be supplied to the battery via the conductive portion 212 and the conductive portion 21. With this configuration, power is always supplied even during the disk rotation operation. Further, even when the disk is not rotating and is stopped, power can be supplied if the both conductive parts are forcibly brought into contact with each other. In this way, the battery can be charged when the disk rotation is stopped.
- the conductive portion formed on the disk is formed in an annular shape with a predetermined width, In the disk drive device corresponding to the embodiment shown in FIGS. 9 to 13 and separated from the disk drive device, only the corresponding conductive portions on the disk side are placed on the turntable 210 of the disk drive device.
- a plurality of conductive portions having a defined width, position, shape, and the like may be formed so as to be in contact with each other.
- connection portions are provided corresponding to the respective conductive portions on the disk drive side.
- the number of the connection portions is one, and the signals flowing to the plurality of conductive portions are multiplexed to form one connection portion.
- the configuration can be simplified by transmitting and receiving the connection. The position, shape, size, etc., of the conductive portions on the disk side and the disk drive device side that can surely contact each other may be determined. You can use the configuration.
- an electronic circuit is formed on the surface of the optical disk, and this electronic circuit is formed.
- a conductive section as an electronic function section that is connected to a circuit or generates some signal information is provided.Electrical information can be transmitted and received via the conductive section on the optical disk and the conductive section on the disk drive. Therefore, as described above, the field of use can be easily expanded.
- the information obtained from the electronic circuit of the optical disk by the disk drive device may be processed by an external processing device such as a computer, and the signal processed by the processing device may be written to the optical disk.
- the disk drive device does not require a turntable / clamper as an essential requirement.
- any disk drive device that grips or holds (clamps) a disk and rotates the disk may be used.
- a plurality of conductive parts can be arranged at a distance, and the conductive parts can be formed with irregularities, or the conductive parts themselves can be formed of an elastic material.
- an elastic material can be provided below the conductive portion.
- the present invention is not limited to the disk drive device and the disk described in the above-described embodiment, but includes a rotating member in a rotating mechanism that contacts (rotates) the rotating member and holds (holds) by the holding (gripping) member to rotate. The same applies to the rotating mechanism.
- the specific configuration and effect are not described because they are duplicated, they have the following basic configuration.
- An electronic circuit or an electronic function unit is mounted on the rotated body, and a conductive unit electrically connected to the electronic circuit or the electronic function unit is formed,
- a conductive part that is in contact with a conductive part formed on the rotated object is formed in the contact holding part of the object to be rotated,
- a signal transmission / reception device for transmitting / receiving a signal between the rotating object and the rotation driving unit via the rotating object and the conductive unit of the rotation driving unit.
- a plurality of electronic circuits or electronic function units are mounted on the rotated object, and a conductive unit electrically connected to each of the plurality of electronic circuits or electronic function units is formed.
- the contact holding unit of the rotating body includes a conductive unit that is in contact with a plurality of conductive units formed on the rotating body, respectively.
- a signal transmission / reception device for transmitting / receiving a signal between the driven body and the rotation drive unit via the conductive body of the rotation drive unit and the driven body that is in contact with each other.
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-004301 | 2004-01-09 | ||
JP2004004301 | 2004-01-09 | ||
JP2004-013995 | 2004-01-22 | ||
JP2004013995 | 2004-01-22 | ||
JP2004-027685 | 2004-02-04 | ||
JP2004027685A JP2005222588A (ja) | 2004-02-04 | 2004-02-04 | ディスクドライブ装置、ディスクドライブシステム並びにディスク |
Publications (1)
Publication Number | Publication Date |
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WO2005066958A1 true WO2005066958A1 (ja) | 2005-07-21 |
Family
ID=34743486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/000452 WO2005066958A1 (ja) | 2004-01-09 | 2005-01-11 | ディスクドライブ装置、ディスク信号処理システム並びにディスク |
Country Status (2)
Country | Link |
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US (1) | US7392530B2 (ja) |
WO (1) | WO2005066958A1 (ja) |
Families Citing this family (1)
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JP6084489B2 (ja) * | 2013-03-15 | 2017-02-22 | 東芝アルパイン・オートモティブテクノロジー株式会社 | 光ディスク装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0554460A (ja) * | 1991-08-21 | 1993-03-05 | Pioneer Electron Corp | 複合媒体デイスク及びその記録再生装置 |
JP2000285636A (ja) * | 1999-03-31 | 2000-10-13 | Hitachi Maxell Ltd | 光ディスクシステム |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US5423054A (en) * | 1989-12-29 | 1995-06-06 | Pitney Bowes Inc. | Processor and read/write head incorporated in disk for communicating data to host directly from processor read/write head to read/write head of host disk drive |
US5652838A (en) * | 1996-05-20 | 1997-07-29 | Lovett; Donna M. | Smart disc cd-rom |
JPH1116325A (ja) | 1997-06-19 | 1999-01-22 | Oputoromu:Kk | 電子回路を有する記憶媒体と該電子回路と情報交換をする装置、及びそれらを含むシステム |
US6181662B1 (en) * | 1997-09-26 | 2001-01-30 | Iomega Corporation | Latent irradiance discrimination method and marker system for cartridgeless data storage disks |
JPH11353729A (ja) | 1998-06-05 | 1999-12-24 | Canon Inc | 光磁気記録装置 |
JPH11353749A (ja) | 1998-06-11 | 1999-12-24 | Matsushita Electric Ind Co Ltd | ディスククランプ装置 |
JP2000100031A (ja) | 1998-09-25 | 2000-04-07 | Matsushita Electric Ind Co Ltd | ディスククランプ装置、ディスクドライブ装置および可搬撮像装置 |
JP2000100032A (ja) | 1998-09-25 | 2000-04-07 | Matsushita Electric Ind Co Ltd | ディスククランプ装置、ディスクドライブ装置および可搬撮像装置 |
JP3757098B2 (ja) * | 2000-06-01 | 2006-03-22 | 富士通株式会社 | ディスク装置及びディスク媒体 |
-
2005
- 2005-01-06 US US11/030,541 patent/US7392530B2/en not_active Expired - Fee Related
- 2005-01-11 WO PCT/JP2005/000452 patent/WO2005066958A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0554460A (ja) * | 1991-08-21 | 1993-03-05 | Pioneer Electron Corp | 複合媒体デイスク及びその記録再生装置 |
JP2000285636A (ja) * | 1999-03-31 | 2000-10-13 | Hitachi Maxell Ltd | 光ディスクシステム |
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US7392530B2 (en) | 2008-06-24 |
US20050155051A1 (en) | 2005-07-14 |
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