WO2016017023A1 - Procédé d'enregistrement/reconstruction et dispositif d'enregistrement/reconstruction - Google Patents

Procédé d'enregistrement/reconstruction et dispositif d'enregistrement/reconstruction Download PDF

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Publication number
WO2016017023A1
WO2016017023A1 PCT/JP2014/070301 JP2014070301W WO2016017023A1 WO 2016017023 A1 WO2016017023 A1 WO 2016017023A1 JP 2014070301 W JP2014070301 W JP 2014070301W WO 2016017023 A1 WO2016017023 A1 WO 2016017023A1
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Prior art keywords
recording
recorded
management data
data
reproducing
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PCT/JP2014/070301
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English (en)
Japanese (ja)
Inventor
石飛　竜哉
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日立コンシューマエレクトロニクス株式会社
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Priority to PCT/JP2014/070301 priority Critical patent/WO2016017023A1/fr
Publication of WO2016017023A1 publication Critical patent/WO2016017023A1/fr

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    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers

Definitions

  • the present invention relates to a technique for recording or reproducing data on a recording medium using a hologram.
  • Patent Document 1 An example of a disk recording method is described in Patent Document 1 below.
  • Disc recording media have various recording methods according to their specifications and standards.
  • a method for using a recording area of a recording medium, a recording position and contents of management data to be recorded when user data is recorded are defined.
  • the disk device records data in accordance with a recording method suitable for the corresponding recording medium, thereby ensuring compatibility of recording and reproduction between different disk devices.
  • An object of the present invention is to provide a recording / reproducing method suitable for a disk for recording data using a hologram and a recording / reproducing apparatus to which the recording / reproducing method is applied.
  • a recording / reproducing apparatus that records or reproduces information on a recording medium using a hologram in response to an external recording request, and a recording / reproducing unit that records or reproduces information on the recording medium;
  • a system control unit that controls the operation of the recording / reproducing unit, and the system control unit divides a recording area of the recording medium into a plurality of zones, and at least one of the divided zones includes:
  • a management data area for recording management data including address information related to a recording position of user data is generated, and the recording / playback unit records the management data in the management data area when recording the user data in the divided zones. Record the data.
  • compatibility of data recording and reproduction is ensured between different disk devices corresponding to disks that record data using holograms.
  • FIG. 1 An example of a system configuration for implementing the recording method according to the present embodiment is shown in FIG. The figure shows that the system is composed of the host device 1, the disk device 2, and the hologram disk 3. In this system, the host device 1 can record data on the hologram disc 3 via the disc device 2. In FIG. 1, it is described that the hologram disk 3 is outside the disk device 2, but this is described for convenience for the sake of later explanation, and actually the disk device 2. May be placed inside.
  • the recording area of the disc type recording medium is divided into concentric zones for use.
  • Each zone is provided with a user data recording area for recording user data.
  • a management data area for recording management data and the like is provided in at least one zone.
  • the zone and each area provided in the zone may be formed by a physical disk structure, but in the present disk recording method, these are logically formed according to regulations.
  • FIG. 2 shows a format example in which the recording area is divided into four zones, the number of zones is not limited to this, and a format having a different number of zones may be used. Further, FIG.
  • the area is divided in the radial direction of the disk and the zone is formed in a ring shape, but the shape of the zone is not limited to this.
  • the area may be divided in the circumferential direction of the disk to form a fan-shaped zone shape.
  • FIG. 3 shows a state in which user data and management data are recorded in the recording area of the format shown in FIG. 2 according to the disc recording method.
  • user data is recorded in a block secured in the zone.
  • management data for managing the secured block is generated, and the management data is recorded in the management data recording area.
  • three blocks are secured clockwise in zone 1 to record user data.
  • a part of zone 1 is defined as a management data recording area, and three management data are recorded counterclockwise in the same area. It shows that.
  • a block for recording user data is secured in the zone every time recording of user data is requested, and the size is determined according to the amount of recording data required.
  • the block has a size including one unit or more of data recording units.
  • FIG. 3 shows that user data recording was requested three times. In block 1, block 2, and block 3, the first recording, the second recording, and the third recording, respectively. It shows that it was secured according to the request.
  • each block user data is recorded in units of predetermined data recording units.
  • the recording position of each recording unit in the block is managed as address information.
  • the address information is included in the management data and recorded in the management data recording area.
  • the address information is updated each time a block is added, and the updated address information is included in new management data and added to the management data recording area.
  • FIG. 3 shows that three pieces of management information are recorded. When management data 1, management data 2, and management data 3 are recorded in block 1, block 2, and block 3, respectively. Are recorded in the management data recording area.
  • the position of the management data to be recorded first on the disk in the management data is recorded at a predetermined position (address).
  • the management data 1 is tried to be reproduced from a predetermined position, and the presence or absence of the management data 1 is confirmed. If the management data 1 cannot be confirmed, it is determined that the disk is unused.
  • the recording position of the management data 2 is specified based on the address information included in the management data 1, and the presence or absence of the management data 2 is confirmed by attempting data reproduction at the position.
  • the management data 1 is determined as the latest management data.
  • the recording position of the management data 3 is specified based on the address information included in the management data 2, and the presence or absence of the management data 3 is confirmed by attempting to reproduce the data at the position. .
  • the recorded management data is sequentially traced to identify the latest management data recorded last.
  • the latest various information can be acquired from the latest management data. Thereby, it is possible to specify the address for reproducing the recorded data and additionally writing new data.
  • the management data includes format information related to the format for dividing the recording area into a plurality of zones in addition to the address information.
  • the management data includes information regarding the state of the zone indicating whether or not data can be additionally written to the zone, and whether or not the data recorded in the zone is valid data properly recorded. Contains information about the validity of the data recorded in the.
  • the address for the next reproduction is specified from the address information included in the management data.
  • the latest management data can be specified simply by trying reproduction sequentially at a predetermined address and confirming only the presence or absence of the management data.
  • the disc recording method described above can be applied to any type of disc type recording medium, but is effective when applied to a hologram disc.
  • a hologram disc does not have a groove structure (track) that guides the recording position when data is recorded. Can also record data. If data is recorded on such a disk at a position uniquely determined for each disk device, data reproduction and recording compatibility between the devices becomes extremely difficult.
  • this disc recording method an arbitrary format can be selected and the recording position of data can be managed, so even a hologram disc capable of recording data at an arbitrary position in the recording area can be used between devices. Data recording and playback compatibility can be ensured.
  • the hologram disc needs to be subjected to a process called cure before recording data and after recording data. Cure performed before data recording is called pre-cure, and cure performed after data recording is called post-cure. In both cases, the disk is irradiated with light, but data can be recorded in the precured area, and the recorded data is fixed as a hologram in the postcured area and can be reproduced. Become.
  • the range for performing the curing process is determined according to the amount of data required to be recorded, and the cured area is managed as a block.
  • the position of each block in the recording area is managed by the address information included in the management data, and the position where new data is to be added is also managed by the address information.
  • the address for adding new data is managed so as to select the address of the area where the curing process is not performed.
  • the recording area of the hologram disc can be appropriately managed, so that the compatibility of data recording and reproduction between devices can be ensured efficiently and reliably. Use of the recording area can be realized.
  • FIG. 4 shows a state in which user data and management data are recorded in the recording area of the format shown in FIG. 2 according to the disc recording method.
  • the first embodiment shown in FIG. 3 is the same as the management data except for the recording position of the management data. Therefore, in the following description, only the points specific to the second embodiment will be described.
  • the disc recording method of this embodiment is different from the first embodiment in that management data is recorded together with user data in a block secured in the zone.
  • FIG. 4 shows that three blocks are secured clockwise in zone 1, management data is recorded at the head of each block, and user data is recorded following the management data.
  • Management data 1 is always recorded at a predetermined position. Thereby, the block 1 including the management data 1 secures the recording position of the management data 1 as the head.
  • the management data 1 includes address information indicating the recording position of each recording unit in the block 1 and the head position of the block 2.
  • management data 2 is recorded at the head position of block 2.
  • the management data 2 includes information obtained by adding address information related to the block 2 to the address information included in the management data 1.
  • the address information of the management data 2 further includes a recording position where the block 3 is to be recorded.
  • Block 3 is secured with the address indicated by the address information of management data 2 at the head.
  • the management data of the block 3 includes the position where the block 4 (not shown) is to be recorded together with the address information of the blocks 1 to 3 according to the above procedure. When adding a new block and recording data, the above procedure is repeated.
  • ⁇ Recording management data and user data together in the same block according to this disc recording method is particularly useful for recording data on a hologram disc.
  • the hologram disk needs to cure data.
  • this curing process can be performed at once. This has the effect of reducing wasteful consumption of the recording area in addition to the effect of reducing the time required for the curing process and the operation of the apparatus.
  • This disc recording method records management data with a relatively small amount of data in the same area as user data with a large amount of data. Efficient use of the area can be realized.
  • the present disk recording method described above also has an effect that the recording area of the hologram disk can be used efficiently.
  • the disc recording method according to the present embodiment is applied to the system having the form shown in FIG. 1 so that the presence / absence of various data recorded on the hologram disc can be accurately determined.
  • the disc recording method of this embodiment is intended for the angle multiplexing method, which is one of hologram recording methods.
  • the angle multiplexing method interference fringes generated at the point where signal light and reference light intersect each other are recorded as a hologram on a disk.
  • Various data can be recorded as holograms by changing the data by superimposing the reference light on the signal light, and different holograms can be multiplexed at the same position by changing the angle formed by the signal light and the reference light Can be recorded.
  • the hologram corresponding to each reference light angle is called a page, and the same area.
  • a set of pages angle-multiplexed with each other is called a book.
  • FIG. 5 is a diagram schematically showing a reproduction signal obtained from each hologram that is multiplexed and recorded at one point of the hologram disk by the angle multiplexing method.
  • the horizontal axis is the reference light angle
  • the vertical axis is the reproduction signal intensity.
  • the plurality of chevron-shaped reproduction signals in the figure are obtained from different holograms.
  • the reason why the reproduction signal has a mountain shape is that the intensity shows a peak at a point where the reference light angle is optimal, and the intensity suddenly decreases when it is slightly deviated from the angle. Since it has high selectivity with respect to the angle of the reference beam, a plurality of holograms can be recorded in a multiplexed manner by changing the reference beam angle. This suggests that, when reversed, unless the reference light is incident at an appropriate angle, it cannot be properly reproduced.
  • the recording material expands or contracts depending on the temperature. Under this influence, the reference beam angle for obtaining an appropriate reproduction signal intensity from the recorded hologram changes. This is an obstacle to the confirmation of the presence / absence of the management data shown in the first and second embodiments. That is, when sufficient signal intensity cannot be obtained, it is because the hologram is not recorded, or because the hologram ram is recorded but the reference light incident angle is inappropriate. It becomes indistinguishable.
  • a reproduction signal can be obtained from a plurality of holograms at one reference beam angle.
  • a group of holograms recorded at such narrow angular intervals is called an indicator. If the indicator is 1 if it is recorded, and if it is 0 if it is not recorded, the information can be given to the indicator with a small amount, as shown below, together with the presence or absence of the hologram.
  • the information is 111, and if two indicators are recorded with a gap between them, the information is 101.
  • the former is an open indicator
  • the latter is a close indicator
  • the disc on which the open indicator is recorded can indicate that the disc has some data recorded on it, not an unused disc. Can indicate that the disc is read-only and is not allowed to record data.
  • an indicator is recorded in a part of the reference beam angle range in which multiple recording is possible, and the remaining angle range is set to the same angle interval as that in the case of recording normal data. It is effective to record various information such as information.
  • the presence or absence of the management data can be accurately determined by the indicator, and from the hologram recorded at the same angular interval as when recording normal data, Detailed information can be obtained without being affected by crosstalk from the hologram.
  • This disc recording method is not limited to management data, but may be used for normal data.
  • it is also effective to use the present disk recording method for recording a hologram to be recorded at a position corresponding to some reference or node, such as a hologram to be recorded last in a block. By recording in this way, it becomes a mark when searching for a recorded hologram, and the target hologram can be efficiently reached.
  • this disk recording method it is possible to accurately determine the presence or absence of various data (holograms) recorded on a hologram disk that records data by the angle multiplexing method, and to manage the disk properly. it can.
  • the reliability of the management data recorded on the hologram disk can be improved by applying the disk recording method according to this embodiment to the system having the form shown in FIG.
  • the disc recording method of the present embodiment increases the reliability of the management data by recording the management data having the same contents in a part of the user data recording area as well as recording the management data in the management data recording area. Increase. That is, some of the holograms that are multiplexed and recorded at the same position are set as management data, and the rest are set as user data.
  • holograms including data of different types are mixedly recorded, but by recording identification information indicating the type of data in a part of page data, The type of data obtained from the reproduced hologram can be identified.
  • the page data usually includes header information for storing the address assigned to the hologram recording position, recording date, and the like, and body information for storing the data body.
  • a part of the header information may be information indicating the type of data, and a data body that matches the type information may be stored in the header.
  • the management data can be further improved in reliability by dividing the information and distributing it to different positions instead of recording all of the information in the same place.
  • the disc recording method of this embodiment even when management data at a specific location is lost, the management data can be recovered from other locations, and the reliability of the management data is improved. be able to.
  • the logical address designated by the host device can be accurately changed to the physical address.
  • FIG. 8 shows the zone 1 shown in FIG. 2 as a band for convenience of explanation.
  • FIG. 6A shows a state in which block 1 and management data 1 are recorded.
  • FIG. 5B shows a state in which block 2 and management data 2 are added to the state in FIG. )
  • the blocks 1 to 3 indicate that data is recorded for each recording unit divided into a predetermined amount of data.
  • the numerical value attached to the upper side of each block is a logical address, and the numerical value attached to the lower side of each block represents a physical address.
  • FIG. 8A shows that management data 1 is recorded at the physical address 99 and user data is recorded at the physical addresses 100 to 110.
  • the physical addresses 100 to 110 correspond to the logical addresses 0 to 10, respectively.
  • the address information of the management data 1 has the contents shown in FIG.
  • the address information shown in the figure indicates that it is composed of four pieces of information: an information number (No.), a logical address, a physical address, and the number of recording units. It shows that 11 units of data have been recorded starting from the physical address 100, and that the logical address 0 corresponds to the physical address 100.
  • FIG. 8B is the same as FIG. For block 2, management data 2 is recorded at physical address 98, and user data is recorded at physical addresses 111-121. Further, the physical addresses 111 to 121 correspond to the logical addresses 11 to 21, respectively.
  • the address information of management data 2 has the contents shown in FIG. In contrast to FIG. 2 information has been added. No. The information 2 indicates that data of 11 units is recorded starting from the physical address 111, and that the logical address 11 corresponds to the physical address 111.
  • the overwritten data is recorded in zone 3, indicating that logical addresses 0 and 1 are recorded in physical addresses 122 and 123, and logical addresses 18 to 21 are recorded in physical addresses 124 and 127, respectively. ing. Further, the management data 3 is recorded at the physical address 97.
  • the address information of the management data 3 has the contents shown in FIG. With respect to FIG. 3 and no. 4 information has been added.
  • No. Information 3 indicates that data for four units is recorded starting from the physical address 124, and that the logical address 0 corresponds to the physical address 122.
  • No. The address information 4 indicates that data of two units is recorded starting from the physical address 122 and that the logical address 18 corresponds to the physical address 124.
  • the address information shown in FIG. 9 is used when searching for a physical address corresponding to a logical address.
  • No. 8 which is the difference between the logical address 11 registered in the address information 2 and the search target logical address 19 is obtained.
  • the physical address 119 corresponding to the search target logical address 19 can be obtained.
  • No. 4 which is the difference between the logical address 18 registered in the address information 4 and the search target logical address 19 is obtained. 4 is added to the physical address 127 registered in the address information 4, the physical address 128 corresponding to the search target logical address 19 can be obtained.
  • the address information is used to specify the position where new data is recorded.
  • the physical address 111 obtained by adding the basic unit number 11 to the physical address 100 indicates a position where new data is added.
  • the physical address 122 obtained by adding the basic unit number 11 to the physical address 111 indicates a position where new data is added.
  • the address information is in the state shown in FIG.
  • the physical address 128 obtained by adding the basic unit number 4 to the physical address 124 of 4 indicates the position to add new data.
  • position information for adding new data may be added directly to the end of the address information. For example, for the state of FIG. 5 information is added.
  • the information is information indicating a position where new data is recorded, for example, a negative address that does not normally use a logical address, such as ⁇ 1, is used.
  • the physical address is set to 128, which is the recording position of new data, and the basic unit number is set to 0, indicating that no data has been recorded yet.
  • the recording position of the new data is directly indicated as described above, an arbitrary position may be set as the recording position of the new data.
  • the recording position of data recorded on the disc can be accurately managed for each recording basic unit regardless of overwriting.
  • FIG. 10 shows the configuration of a disk device for carrying out the disk recording methods of the first to fifth embodiments.
  • the hologram disc 3 shown in FIG. 1, respectively.
  • the hologram disc 3 is placed inside the disc device 2, but the disc can be taken out of the device.
  • the disk device 2 includes a system control unit 4, a communication unit 5, a memory unit 6, a servo control unit 7, a disk support unit 8, a curing unit 9, a signal processing unit 10, a recording / reproducing unit 11, and a management data holding unit 12. Become.
  • the system control means 4 controls each means in the disk device 2, converts it to a physical address corresponding to the logical address designated by the host device 1, and records the data designated by the physical address as a hologram.
  • the movement to the target physical address is executed. This is achieved by the system control means 4 operating the disk support means via the servo control means 7.
  • the disk is moved so that the desired area of the disk faces the curing means 9, and when recording and reproducing data, the desired area of the disk is recorded.
  • the disc is moved so as to face the reproducing means 11. By this operation, a desired area of the disk can be accessed.
  • the curing process of the pre-cure and the post-cure is achieved by the curing unit 9 irradiating the hologram disc 3 with light according to the instruction of the system control unit 4. Blocks to be secured in the zone are physically secured by the pre-curing process.
  • Recording of the hologram on the disk is achieved by the recording / reproducing means 11 irradiating the hologram disk 3 with signal light and reference light in accordance with instructions from the system control means 4. Control of the irradiation angle of the reference light is also executed in the recording / reproducing means 11 to achieve multiplex recording of the hologram by the angle multiplex method. All of user data, management data, and indicators are recorded on the disc by this operation.
  • Data recorded as a hologram is temporarily stored in the memory means 6 and then sent to the signal processing means 10 where processing such as addition of error correction codes and modulation is performed and converted into page data. .
  • Header information is added in the process of generating page data.
  • the header information stores information indicating the data type.
  • the recorded data is converted from electrical information to optical information in the recording / reproducing means 11 and irradiated onto the hologram disk 3. Either means operates under the control of the system control means 4.
  • FIG. 11 shows an operation flow of the disk device when there is a data recording request from the host device 1.
  • the recording request from the host device 1 is transmitted to the system control means 4 via the communication means 5.
  • the system control means 4 logically divides the disk into a plurality of zones (1101), and generates this as format information (1102). Further, a block which is an area for recording user data and management data is defined in the zone (1103). After that, the system control unit 4 generates address information in which the logical address designated by the host device 1 is associated with the physical address in the secured block (1104). The generated format information and address information are held as management data in the management data holding means 12 (1105), and the data recording preparation is completed.
  • User data transferred from the host device 1 is temporarily stored in the memory means 6 through the communication means under the control of the system control means 4, and then converted into page data as described above, and recorded on the hologram disk 3. Is done.
  • the management data held by the management data holding means 12 is transferred to the memory means 6 under the control of the system control means 4 and recorded on the hologram disk 3 in the same procedure as the user data.
  • Reproduction of the hologram recorded on the disk is achieved by the recording / reproducing means 11 irradiating the hologram disk 3 with reference light in accordance with an instruction from the system control means 4.
  • Reference light irradiation angle control is also executed by the recording / reproducing means 11 and reproduction data can be obtained from a desired hologram among holograms that are multiplexed and recorded according to the angle multiplexing method.
  • Reproduced data is restored to the original data by the signal processing means 10 and transferred to the memory means 6.
  • the reproduced data is user data
  • the user data in the memory means 6 is transferred to the host device 1 through the communication means 5 under the control of the system control means 4.
  • the reproduced data is management data, it is transferred to the management data holding means 12 by the system control means 4.
  • the system control means 4 analyzes the contents of the management data and grasps the recording position of each data recorded on the disk and the position where new data should be recorded.
  • the system control unit 4 acquires the header information of the page data from the signal processing unit 10 and determines the type of the reproduced data. Further, the system control means acquires the intensity of the reproduction signal from the recording / reproduction means 11 and determines whether or not a hologram is recorded.
  • management data generation, retention, and management based on the management data according to the present disk recording method are achieved, and data recording / reproduction of the hologram disk is achieved. It is ensured between devices with different compatibility.
  • the memory means 6, the servo control means 7, the signal processing means 10, and the management data holding means 12 may be included in the system control means 4.
  • FIG. 12 shows a recording principle in an example of a basic basic optical system configuration of the optical pickup in the recording / reproducing means 11.
  • the light beam emitted from the light source 1201 passes through the collimator lens 1202 and enters the shutter 1203.
  • the optical element 1204 configured by, for example, a half-wave plate or the like, makes the light quantity ratio of p-polarized light and s-polarized light become a desired ratio.
  • the light enters a PBS (Polarization Beam Splitter) prism 1205.
  • PBS Polarization Beam Splitter
  • the light beam that has passed through the PBS prism 1205 functions as signal light 1206, and after the light beam diameter is expanded by the beam expander 1208, the light beam passes through the phase mask 1209, the relay lens 1210, and the PBS prism 1211 and passes through the spatial light modulator 1212. Is incident on.
  • the signal light to which information is added by the spatial light modulator 1212 reflects the PBS prism 1211 and propagates through the relay lens 1213 and the spatial filter 1214. Thereafter, the signal light is condensed on the recording medium 1 by the objective lens 1215.
  • the light beam reflected from the PBS prism 1205 acts as reference light 1207, and is set to a predetermined polarization direction according to recording or reproduction by the polarization direction conversion element 1216, and then galvanically passed through the mirror 1217 and the mirror 1218. Incident on the mirror 1219. Since the angle of the galvanometer mirror 1219 can be adjusted by the actuator 1220, the incident angle of the reference light incident on the recording medium 1 after passing through the lens 1221 and the lens 1222 can be set to a desired angle. In order to set the incident angle of the reference light, an element that converts the wavefront of the reference light may be used instead of the galvanometer mirror.
  • the signal light and the reference light are incident on the recording medium 1 so as to overlap each other, whereby an interference fringe pattern is formed in the recording medium, and information is recorded by writing this pattern on the recording medium.
  • the incident angle of the reference light incident on the recording medium 1 can be changed by the galvanometer mirror 1219, recording by angle multiplexing is possible.
  • this invention is not limited to the above-mentioned Example, Various modifications are included.
  • the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
  • a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
  • Specific examples include the following examples.
  • Modified example 1 is a disc recording method corresponding to a hologram disc, in which a recording area of a recording medium is divided into a plurality of zones, and management data for managing each zone in at least one part of the divided zones There is a disk recording method characterized in that when recording user data in each zone, the management data is recorded in the management data recording area.
  • the disk recording method according to the first modification wherein the management data recording area is provided in a part of all the zones, and when the user data is recorded in the zone, the management data recording area of the zone is recorded.
  • a disk recording method characterized by recording management data There is a disk recording method characterized by recording management data.
  • the disk recording method according to the first modification in which a block including one or more data recording units is secured in a zone, and management data recording is performed when user data is recorded in the block.
  • a disk recording method characterized by recording management data in an area.
  • the disk recording method according to the third modification in which a management data recording area is provided in a partial area of each block in the zone, and when the user data is recorded in the block, the management data of the block There is a disk recording method characterized in that management data is recorded in a recording area.
  • the disk recording method described in the modified example 1, and when data is recorded on the recording medium for the first time, indicator information indicating that the recording medium is used or not used Is recorded in the management data recording area.
  • the recording medium when the recording medium is set in a state in which only the reproduction is permitted, the recording medium is for reproduction only or cannot be recorded.
  • the disk recording method characterized in that indicator information is recorded in a management data recording area.
  • the management data includes address information that enables conversion from a logical address to a physical address.
  • the address information recorded later in the time series includes that the address information recorded before is included in the management data.
  • the address information recorded later in the time series includes that the address information recorded before is included in the management data.
  • the disk recording method according to the fifth modification wherein various data recorded on the disk is recorded as page data on a recording medium by an angle multiplexing method, and the indicator information is reproduced between consecutive page data.
  • a disk recording method characterized by selecting a reference beam angle when recording page data so that a part of the waveform overlaps.
  • the disk recording method according to the modified example 7 in which various data recorded on the disk is recorded as page data on a recording medium by an angle multiplexing method, and predetermined reference light among the multiplexed recorded page data Recording page data serving as an indicator for determining whether or not the information is recorded in an angle area, and recording page data as a data body in a reference light angle area different from the indicator There is a disc recording method.
  • Modified example 12 is the disk recording method described in modified example 1, in which various data to be recorded on the disk are recorded as page data on a recording medium by an angle multiplexing method, and predetermined reference light out of the multiplexed recorded page data
  • a disk recording method characterized in that page data including management data is recorded in an angle area, and page data including a data body is recorded in a reference light angle area different from the management data.
  • recording means for recording user data and management data on a recording medium, wherein the management means divides a recording area of the recording medium into a plurality of zones, and a part of at least one of the divided zones
  • an area for recording the management data generated by the management data generation means is secured, and when the user data is recorded in each zone, the management data is recorded in the management data recording area by the recording means.
  • the disk device As a modified example 14, the disk device according to the modified example 13, wherein the management means provides a management data recording area in a part of all the zones, and records user data in the zones when the user data is recorded in the zones.
  • the management means There is a disk device in which management means records management data in a recording area.
  • the management means secures a block including one or more data recording units in the zone and records user data in the block.
  • management data generated by management data generation means is recorded in a management data recording area by a recording means.
  • the disk device As a modified example 16, the disk device according to the modified example 15, wherein the management means secures a management data recording area in a partial area of each block in the zone and manages the user data when recording in the block.
  • the recording means records the management data generated by the data generation means in the management data recording area of the block.
  • the recording medium is used or not used.
  • a disk device characterized in that an area for recording indicator information to be represented is secured on a recording medium.
  • the management unit puts the recording medium into a state in which only the reproduction is permitted, the recording medium is dedicated to reproduction or recording is impossible.
  • a disk device characterized in that an area for recording indicator information indicating the existence is secured on a recording medium.
  • the disk device As a modified example 19, the disk device according to the modified example 13, wherein the management data generating means generates management data including address information that enables conversion from a logical address to a physical address. There is a device.
  • the disk device As a modification 20, the disk device according to the modification 13 is characterized in that the management data generation means generates management data including address information generated before when the management data is generated.
  • the management data generation means generates management data including address information generated before when the management data is generated.
  • Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
  • Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor.
  • Information such as programs, tables, and files for realizing each function can be stored in a recording device such as a memory, a hard disk, or an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

La présente invention aborde le problème consistant à fournir un procédé d'enregistrement/reconstruction qui assure la compatibilité entre différents dispositifs en termes d'enregistrement et de reconstruction de données vers et depuis un disque d'hologramme, ainsi qu'un dispositif d'enregistrement/reconstruction. Le dispositif d'enregistrement/reconstruction, qui utilise un hologramme pour enregistrer des informations vers ou reconstruire des informations depuis un support d'enregistrement en réponse à une demande d'enregistrement venant de l'extérieur, comprend: une unité d'enregistrement/reconstruction pour enregistrer des informations sur le support d'enregistrement ou reconstruire des informations depuis celui-ci; et une unité de commande de système pour commander le fonctionnement de l'unité d'enregistrement/reconstruction. L'unité de commande de système divise une zone d'enregistrement du support d'enregistrement en de multiples zones et génère, dans au moins une des zones divisées, une zone de données de gestion pour enregistrer des données de gestion comprenant des informations d'adresse concernant des positions d'enregistrement de données d'utilisateur, et l'unité d'enregistrement/reconstruction enregistre les données de gestion dans la zone de données de gestion lors de l'enregistrement des données d'utilisateur dans les zones divisées respectives.
PCT/JP2014/070301 2014-08-01 2014-08-01 Procédé d'enregistrement/reconstruction et dispositif d'enregistrement/reconstruction WO2016017023A1 (fr)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005302189A (ja) * 2004-04-14 2005-10-27 Samsung Yokohama Research Institute Co Ltd ホログラムメモリ媒体の情報記録方法およびホログラムメモリ媒体
JP2007240581A (ja) * 2006-03-06 2007-09-20 Fujitsu Ltd ホログラム記録装置
JP2008502093A (ja) * 2004-06-08 2008-01-24 エルジー エレクトロニクス インコーポレーテッド 記録媒体上に管理情報を記録する方法および装置、並びに記録媒体
WO2010029608A1 (fr) * 2008-09-09 2010-03-18 パイオニア株式会社 Dispositif holographique et procédé d'enregistrement
JP2010080018A (ja) * 2008-09-29 2010-04-08 Hitachi Ltd 情報記録装置、情報再生装置および記録媒体
JP2010225243A (ja) * 2009-03-24 2010-10-07 Toshiba Corp 光情報記録方法および装置
JP2014010859A (ja) * 2012-06-29 2014-01-20 Hitachi Consumer Electronics Co Ltd 光情報記録再生方法、及び装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005302189A (ja) * 2004-04-14 2005-10-27 Samsung Yokohama Research Institute Co Ltd ホログラムメモリ媒体の情報記録方法およびホログラムメモリ媒体
JP2008502093A (ja) * 2004-06-08 2008-01-24 エルジー エレクトロニクス インコーポレーテッド 記録媒体上に管理情報を記録する方法および装置、並びに記録媒体
JP2007240581A (ja) * 2006-03-06 2007-09-20 Fujitsu Ltd ホログラム記録装置
WO2010029608A1 (fr) * 2008-09-09 2010-03-18 パイオニア株式会社 Dispositif holographique et procédé d'enregistrement
JP2010080018A (ja) * 2008-09-29 2010-04-08 Hitachi Ltd 情報記録装置、情報再生装置および記録媒体
JP2010225243A (ja) * 2009-03-24 2010-10-07 Toshiba Corp 光情報記録方法および装置
JP2014010859A (ja) * 2012-06-29 2014-01-20 Hitachi Consumer Electronics Co Ltd 光情報記録再生方法、及び装置

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