WO2011121964A1 - コンテンツを利用する機器、コンテンツの利用方法、コンピュータプログラム、記録媒体および集積回路 - Google Patents
コンテンツを利用する機器、コンテンツの利用方法、コンピュータプログラム、記録媒体および集積回路 Download PDFInfo
- Publication number
- WO2011121964A1 WO2011121964A1 PCT/JP2011/001785 JP2011001785W WO2011121964A1 WO 2011121964 A1 WO2011121964 A1 WO 2011121964A1 JP 2011001785 W JP2011001785 W JP 2011001785W WO 2011121964 A1 WO2011121964 A1 WO 2011121964A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- content
- control information
- unit
- recorded
- disc
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00115—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein the record carrier stores a unique medium identifier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
- G11B20/00782—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of times a program can be installed
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00847—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction is defined by a licence file
-
- 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
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
-
- 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
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/122—Burst cutting area [BCA]
-
- 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
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1242—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc the area forming one or more zones, wherein each zone is shaped like an annulus or a circular sector
-
- 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
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1285—Status of the record carrier, e.g. space bit maps, flags indicating a formatting status or a write permission
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
Definitions
- the present invention relates to a device that uses content recorded on an optical disc.
- Patent Document 1 discloses a copy control method in the case where contents are recorded and distributed on a write-once optical disc that can be additionally written only once. Specifically, the recording device records the content with the confidential flag added to the optical disc. Then, the playback device determines whether or not a confidential flag is added to the content recorded on the optical disc. If the confidential flag is added, the playback device controls to prohibit copying of the content. In this way, content copying on the optical disc is controlled.
- the write-once optical disc has a higher manufacturing cost because the manufacturing process is more complicated than a read-only optical disc. Therefore, when distributing a large amount of content, it is desirable to use a read-only optical disc. Therefore, a mechanism for making the contents in the disc unusable by adding data to the read-only optical disc has been studied.
- BCA BURST CUTTING AREA
- a YAG laser which is a powerful infrared laser
- Such a technique is generally used in the case of assigning a unique number to an optical disc, and is mainly performed in a manufacturing factory.
- the present invention has been made in view of the above problems, and in a device that uses (plays back or installs) content recorded on an optical disc, content usage control is performed even when power is cut off during processing.
- An object of the present invention is to provide a device, a content use method, a computer program, a recording medium, and an integrated circuit that can correctly perform the above.
- a device uses a content recorded on an optical disc, and the optical disc cannot use the content recorded on the disc.
- a position information holding unit having a control information area composed of a plurality of partial areas in which control information indicating a state can be recorded, the apparatus holding position information for specifying a partial area in which the control information is to be recorded
- a reading unit that reads information in the control information area, a determination unit that determines whether the content can be used, using the information read by the reading unit and the position information, and is determined to be usable.
- a usage control unit that uses the content.
- the control information recorded on the optical disc can be associated with the device. Therefore, if the device looks at the position information of its own device and the information in the control information area of the optical disc, whether the optical disc is about to be used for the first time by the own device, or already used by another device Or whether the optical disk is the same as the optical disk used by the own device before.
- control information is recorded on the optical disc, but the installation process is interrupted due to power-off, and the content is not yet available on the device side. If the control information is recorded on the optical disc, it is considered that the content is already installed in another device, and it is expected that the device cannot use the content. This is because the rights of the copyright holder of the content cannot be protected if a single content is used by a plurality of devices. For this reason, control information is recorded on the optical disc. However, if the content is not yet available on the device side due to power failure, both the content recorded on the optical disc and the content recorded on the device Also can not be used.
- the device of the present invention it is possible to determine whether the own device has recorded the control information recorded on the optical disc or another device, so if the own device has recorded the control information, The installation process can be properly terminated by changing the content to a usable state.
- content use control can be correctly performed even when the power is cut off during the processing.
- FIG. 11 is a diagram showing an operation example when the new optical disk 10 is first used by the device 11.
- FIG. 4 is a diagram showing a processing flow when a new optical disk 10 is first used by a device 11.
- FIG. 10 is a diagram showing a processing flow at the time of abnormality when a new optical disk 10 is used for the first time by the device 11. It is a figure which shows the operation example in the case of using the optical disk 10 which the process interrupted on the way with the same apparatus.
- the device is a device that uses content recorded on an optical disc, and the optical disc is a control that indicates that the content recorded on the disc is in an unusable state.
- a control information area comprising a plurality of partial areas in which information can be recorded, and the device includes a position information holding unit for holding position information for specifying a partial area in which the control information is to be recorded;
- a reading unit that reads the information, a determination unit that determines whether the content can be used, using the information read by the reading unit and the position information, and if the content is determined to be usable, And a usage control unit to be used.
- the determination unit when the determination unit records control information in any partial area other than the partial area indicated by the position information held in the position information holding unit And determining that the content cannot be used.
- control information When the control information is already recorded in any partial area other than the partial area indicated by the position information, it can be understood that this control information is recorded by another device. Therefore, by determining that the content cannot be used, the device can prevent the content already used by another device from being used redundantly and protect the rights of the copyright holder of the content. .
- the determination unit can use the content when the control information is already recorded in the partial area indicated by the position information held in the position information holding unit. It is characterized by judging.
- control information is already recorded in the partial area indicated by the position information, it can be seen that the control information is recorded by the own device. Therefore, even if the device records control information on the optical disc by determining that the content can be used, even if the use process is interrupted due to a power failure or the like, the user of the valid device can obtain the content. The right to use can be protected.
- the determination unit determines that the content can be used when the control information is not recorded in all the partial areas.
- the device can protect the right of the user of the authorized device to use the content by determining that the content can be used. Further, the device writes control information in a partial area corresponding to the device itself, and even if the use process is interrupted due to power interruption or the like, the optical disk is mounted again and the control information area is confirmed. Thus, it is possible to prove that the own device is a legitimate device.
- the device further includes a content acquisition unit that acquires the content from the optical disc in an unusable state, and a content storage unit that stores the acquired content, and the usage control unit Is the content stored in the content storage unit after it is confirmed that the control information has been written in a partial area in the control information area indicated by the position information held in the position information holding unit Is changed from an unusable state to an available state, and then the content is used.
- the device after confirming that the device has recorded the control information on the optical disc so that the content cannot be used by other devices, the device permits the use of the content by itself. It is possible to prevent the content from being available on the device.
- the writing unit writes the control information by physically and irreversibly changing a film on the optical disc.
- This configuration makes it impossible for the device to tamper with the control information, so that the rights of the copyright holder of the content can be effectively protected.
- control information area is present in a lead-in area of the optical disc, and the writing unit is provided with a laser technology in the partial area existing in the lead-in area of the optical disc. And recording the control information.
- the device can write control information on the optical disk using an existing reading laser, so there is no need to add a new component to the device.
- the optical disk is a ROM disk
- the control information area is present in a burst cutting area of the lead-in area
- the writing unit is a burst cutting of the ROM disk.
- the control information is written into the partial area existing in the area using a burst cutting technique.
- the device can write control information on the optical disk using a powerful laser, the time required for writing control information can be reduced.
- the device further includes an identifier holding unit that holds a device identifier that is a value unique to the device, and calculates the position information using the device identifier, and the calculated position And a position information calculation unit that records information in the position information holding unit.
- the position information is generated based on a value specific to the device, the randomness of the position information can be improved.
- each partial area of the control information area can record 1-bit data, and the writing unit writes the 1-bit control information to the partial area. It is characterized by that.
- each partial area is a small area where 1-bit data can be recorded, the randomness of the position information allocated to each device can be improved.
- the control information is 1-bit data, the device can reduce the time required for writing.
- An apparatus is an apparatus that uses content recorded on an optical disc, and the optical disc has a disc identifier area that holds a disc identifier that identifies the optical disc, and is recorded on the disc. And a control information area composed of a plurality of partial areas capable of recording control information indicating that the content being used is in an unusable state, and the device identifies the optical disc on which the usable content is recorded.
- Control information in a partial area other than the partial area indicated by the position information A first determination unit that determines whether the information is recorded; a second determination unit that determines whether control information is recorded in the partial area indicated by the position information when the determination by the first determination unit is negative; A third determination unit for determining whether the disc identifier read by the identifier reading unit is held in the disc identifier holding unit when the determination by the second determination unit is affirmative; and the second determination And a usage control unit that uses the content when the determination by the unit is negative and when the determination by the third determination unit is affirmative.
- the device when the control information is already recorded in any partial area other than the partial area indicated by the position information, it can be understood that the control information is recorded by another device. Therefore, by determining that the content cannot be used, the device can prevent the content already used by another device from being used redundantly and protect the rights of the copyright holder of the content. .
- the device can protect the right of the user of the authorized device to use the content by determining that the content can be used.
- the device when the control information is already recorded in the partial area indicated by the position information, the device further determines the disc identifier, and when the disc identifier of the optical disc is held, the position information It can be seen that is recorded by the own aircraft. Therefore, even if the device records control information on the optical disc by determining that the content can be used, even if the use process is interrupted due to a power failure or the like, the user of the valid device can obtain the content. The right to use can be protected.
- the content is used by an unauthorized device that does not hold the disc identifier in order to make a determination using the disc identifier. Can be prevented.
- the device further includes a portion in the control information area indicated by the position information held in the position information holding unit when the determination by the second determination unit is negative.
- a control information writing unit for writing control information in the area; and a disc identifier recording unit for recording the disc identifier read by the reading unit in the disc identifier holding unit as an acquired disc identifier; The content is used after it is confirmed that the control information has been written in a partial area in the control information area indicated by the position information held in the position information holding unit.
- the device writes the control information in the partial area corresponding to the device itself, and further records the disc identifier of the optical disc inside, so that the usage process is temporarily interrupted due to power interruption or the like.
- the device by remounting the optical disc and checking the control information and disc identifier, it is possible to prove that the device is a legitimate device.
- the device further includes a content acquisition unit that acquires the content from the optical disc in an unusable state, and a content storage unit that stores the acquired content, and the usage control
- the unit is stored in the content storage unit after confirming that the control information has been written in a partial area in the control information area indicated by the position information held in the position information holding unit.
- the content is changed from an unusable state to an available state, and then the content is used.
- the device after confirming that the device has recorded the control information on the optical disc so that the content cannot be used by other devices, the device permits the use of the content by itself. It is possible to prevent the content from being available on the device.
- control information writing unit writes the control information by physically and irreversibly changing a film on the optical disc.
- This configuration makes it impossible for the device to tamper with the control information, so that the rights of the copyright holder of the content can be effectively protected.
- control information area is present in a lead-in area of the optical disc, and the control information writing unit is provided in the partial area present in the lead-in area of the optical disc.
- the control information is recorded using laser technology.
- the device can write control information on the optical disk using an existing reading laser, so there is no need to add a new component to the device.
- the optical disk is a ROM disk
- the control information area is present in a burst cutting area of the lead-in area
- the control information writing unit is a ROM disk.
- the control information is written into the partial area existing in the burst cutting area by using a burst cutting technique.
- the device can write control information on the optical disk using a powerful laser, the time required for writing control information can be reduced.
- the device further includes an identifier holding unit that holds a device identifier that is a value unique to the device, and calculates the position information using the device identifier, and the calculated position And a position information calculation unit that records information in the position information holding unit.
- the position information is generated based on a value specific to the device, the randomness of the position information can be improved.
- each partial area of the control information area can record 1-bit data
- the control information writing unit stores the 1-bit control information in the partial area It is characterized by writing in.
- each partial area is a small area where 1-bit data can be recorded, the randomness of the position information allocated to each device can be improved.
- the control information is 1-bit data, the device can reduce the time required for writing.
- FIG. 1 is a configuration diagram of a content control system 1 according to Embodiment 1 of the present invention.
- the content control system 1 includes an optical disc 10 and a device 11.
- the optical disc 10 is a medium on which content is recorded.
- the device 11 is a device that uses content recorded on the optical disc 10.
- FIG. 2 is a diagram showing an example of the configuration of the recording area of the optical disc 10 according to the first embodiment of the present invention. As shown in FIG. 2, the optical disc 10 has a lead-in area 101 and a general data area 102.
- FIG. 3 is a diagram illustrating an example of the lead-in area 101 according to the first embodiment.
- the lead-in area 101 includes a disk identifier area 1011 and a usage control information area 1012 as shown in FIG.
- the disk identifier area 1011 holds a disk identifier DID.
- the disk identifier DID is a number unique to the optical disk 10 and is assigned and written at the factory at the time of manufacture.
- the disc identifier DID is written by, for example, BCA technology.
- usage control information UCI is recorded.
- the usage control information UCI is information for controlling usage of content recorded on the optical disc 10. Specific examples of usage control include “contents can be reproduced only by a certain device”, “contents can only be copied to memory by a certain device”, and the like. That is, when the device 11 performs operations such as reproduction, copying, and installation of content recorded on the optical disc 10, the operation is controlled by the usage control information.
- the usage control information area 1012 has an area for N bits (N is a natural number of 2 or more), and an area number (from # 1 to #N) is associated with each bit.
- the initial state is all “0”, and the value of this area can be recorded as “1” only once.
- this “1” is referred to as a used signal.
- “1” is recorded in the area corresponding to # 2, and the other areas are “0”. Writing of the used signal to the usage control information area 1012 is executed by the device 11.
- the usage control information UCI is recorded in the lead-in area 101 .
- the present invention is not limited to this, and the usage control information UCI may be recorded in any area.
- data may be recorded by physically and irreversibly changing the layer of the general data area using an optical disk laser.
- FIG. 4 is a diagram illustrating an example of the general data area 102 according to the first embodiment.
- the general data area 102 is mainly composed of a content area 1021 as shown in FIG.
- Content CDT is recorded in the content area 1021.
- the content CDT is data used by the device 11 and is, for example, still image data, text data, moving image data, game data, a computer program, or the like.
- FIG. 5 is a configuration diagram illustrating an example of the device 11 according to the first embodiment of the present invention.
- the device 11 includes an optical disc input / output unit 111, a usage control information acquisition unit 112, a recording position information storage unit 113, a usage permission determination unit 114, a disc identifier storage unit 115, a disc identifier recording unit 116, and usage control.
- An information writing processing unit 117, a usage control information confirmation unit 118, and a content usage unit 119 are included.
- the optical disc input / output unit 111 has a function of reading data recorded in the lead-in area 101 and the general data area 102 on the optical disc 10.
- the optical disc input / output unit 111 has a function of recording “1 (used signal)” as new data in an arbitrary area of the usage control information area 1012 of the lead-in area on the optical disk 10.
- a method of recording in the usage control information area 1012 there is a BCA (BURST CUTTING AREA) technology, but the present invention is not limited to this. Any technique can be used as long as it is a technique for recording data on an optical disk using a laser for the optical disk.
- a method may be used in which data is recorded by physically changing a layer on a general data area on an optical disk using a normal DVD reading laser.
- the usage control information acquisition unit 112 receives a usage instruction from the user.
- the disk identifier DID and the usage control information UCI are obtained from the lead-in area 101 of the optical disk 10 via the optical disk input / output unit 111.
- the usage control information acquisition unit 112 outputs the acquired disk identifier DID and usage control information UCI to the usage permission determination unit 114.
- FIG. 6 shows the recording position information storage unit 113 according to Embodiment 1 of the present invention.
- the recording position information storage unit 113 stores the recording position information PI as shown in FIG.
- the recording position information PI is information for specifying one area (# 1 to #N) of a plurality of areas included in the usage control information area 1012 of the lead-in area 101 of the optical disc 10.
- “# 2” is stored as the recording position information P1.
- the recording position information P1 is a value given when the device 11 is manufactured.
- the recording position information P1 is randomly generated based on a random number when the device 11 is manufactured.
- the usage permission determination unit 114 acquires the disk identifier DID and the usage control information UCI from the usage control information acquisition unit 112. In addition, the use permission determination unit 114 acquires the recording position information PI from the recording position information storage unit 113.
- the use permission judging unit 114 checks whether or not there is an area “1 (used signal)” in the use control information UCI other than the area corresponding to the recording position information PI. To do. If there is even one area that is “1 (used signal)”, it is determined that the content cannot be used on the device 11 and the subsequent processing is stopped.
- the use permission determining unit 114 determines that the region corresponding to the recording position information PI is “0”. ”Or“ 1 (used signal) ”. If the area corresponding to the recording position information PI is “0”, the use permission determining unit 114 determines that the content can be used in the device 11 and sends the recording position information PI and the disc identifier DID to the disc identifier recording unit 116. Output.
- the use permission determining unit 114 acquires the disc identifier DID2 stored in the disc identifier storage unit 115, and the value of the disc identifier D1D2 and the optical disc. 10 is compared with the value of the disk identifier DID acquired from 10.
- the use permission determining unit 114 determines that the content can be used in the device 11, and the disk identifier recording unit displays the recording position information PI and the disk identifier DID. To 116. If the value of the disk identifier DID2 does not match the value of the disk identifier DID, the use permission determining unit 114 determines that the content cannot be used on the device 11 and stops the subsequent processing.
- FIG. 7 shows the disk identifier storage unit 115 in the first embodiment.
- the disc identifier storage unit 115 stores the disc identifier recorded by the disc identifier recording unit 116 described later.
- the disk identifier storage unit 115 stores the disk identifier DID2.
- the disk identifier recording unit 116 acquires the recording position information PI and the disk identifier DID from the use permission determining unit 114. Then, the disc identifier recording unit 116 records the disc identifier DID in the disc identifier storage unit 115. Further, the disc identifier recording unit 116 outputs the recording position information PI to the usage control information writing processing unit 117.
- Usage control information write processing unit 117 When the usage control information writing processing unit 117 acquires the recording position information PI from the disc identifier recording unit 116, the usage control information writing processing unit 117 records the recording position in the usage control information area 1012 of the lead-in area 101 of the optical disc 10 via the optical disc input / output unit 111. “1 (used signal)” is recorded in the area corresponding to the information PI. Then, the usage control information write processing unit 117 outputs the recording position information PI to the usage control information confirmation unit 118.
- Usage control information confirmation unit 118 When the usage control information confirmation unit 118 receives the recording position information PI from the usage control information write processing unit 117, the usage control information confirmation unit 118 acquires the usage control information UCI from the usage control information area 1012 of the lead-in area 101 of the optical disc 10. Then, the usage control information confirmation unit 118 confirms whether “1 (used signal)” is recorded in the area corresponding to the recording position information PI.
- the usage control information confirmation unit 118 If “1 (used signal)” is recorded in the corresponding area, the usage control information confirmation unit 118 outputs a “permission signal” to the content usage unit 119. If the corresponding area is “0”, the usage control information confirmation unit 118 outputs an “error signal” indicating that content usage is not permitted to the content usage unit 119.
- (9) Content usage unit 119 When receiving the “permission signal” from the usage control information confirmation unit 118, the content use unit 119 acquires and uses the content CDT on the optical disc 10 via the optical disc input / output unit 111. When the content use unit 119 receives an “error signal” from the use control information confirmation unit 118, the content use unit 119 ends the process without acquiring the content CDT.
- FIG. 8 is a diagram illustrating an example of a processing flow of the device 11 according to the first embodiment of the present invention.
- the operation when the device 11 uses the content CDT recorded on the optical disc 10 will be described with reference to the flowchart of FIG.
- the device 11 determines whether or not the content CDT on the optical disc 10 can be used (details will be described later with reference to FIG. 9). If it cannot be used, the process ends. If available, the process proceeds to step S1102 (step S1101).
- the device 11 records the disc identifier DID on the optical disc 10 inside (step S1102).
- the device 11 writes a used signal on the optical disc 10 (step S1103).
- the device 11 confirms whether the used signal is correctly written on the optical disk 10. If it has been written correctly, the process proceeds to step S1105. If not correctly written, the process ends (step S1104).
- the device 11 uses the content CDT on the optical disc 10 (step S1105).
- step S1101 a processing flow (details of step S1101) of use permission determination for determining whether or not the device 11 can use the content CDT will be described with reference to FIG.
- the usage permission determining unit 114 acquires usage control information UCI from the optical disc 10 (step S1201).
- the usage permission determination unit 114 acquires the recording position information PI recorded inside the device 11 (step S1202).
- the usage permission determination unit 114 checks whether there is a used signal in an area other than the area corresponding to the recording position PI based on the usage control information UCI (step S1203). If there is, it is determined that the content CDT cannot be used. If not, the process proceeds to step S1204.
- the usage permission determination unit 114 checks whether there is a used signal in the area corresponding to the recording position PI based on the usage control information UCI (step S1204). If there is, the process proceeds to step S1205. If not, it is determined that the content CDT can be used.
- the use permission determining unit 114 checks whether the disc identifier DID acquired from the optical disc 10 matches the disc identifier DID2 recorded in the device 11 (step S1205). If they match, it is determined that the content CDT can be used. If they do not match, it is judged as impossible. 4). Effects of First Embodiment Next, the effects of the first embodiment will be described using a specific example.
- Case 1 Case 1 is a case in which the new optical disk 10 is first used by the device 11.
- FIG. 10 is a diagram illustrating an operation example of the case 1.
- the new optical disk 10 is in a state where the used signal is not written in any area of the usage control information UCI (that is, all “0”).
- UCI usage control information
- the device 11 having “# 2” as the recording position information PI, “1 (used signal)” is written in the area corresponding to # 2 of the optical disk 10. Thereafter, the device 11 can use the content CDT.
- FIG. 11 is a processing flow when the new optical disk 10 is first used by the device 11.
- the device 11 confirms the usage control information UCI of the optical disc 10. Since all the usage control information UCI of the optical disc 10 is “0”, the device 11 determines that it can be used, and records the disc identifier DID in the disc identifier storage unit 115. Then, “1 (used signal)” is written in the area corresponding to the recording position information PI. Then, the device 11 confirms the usage control information UCI of the optical disc 10, and if “1 (used signal)” is recorded in the area corresponding to the recording position information PI, the use of the content CDT is permitted.
- FIG. 12 is a processing flow at the time of abnormality when the new optical disk 10 is first used by the device 11. As shown in FIG. 12, when the process is interrupted due to a power failure or the like while the device 11 is writing the used signal to the optical disc 10, the optical disc 10 has “1 (used) in the area corresponding to the recording position information P 1. It is assumed that the “completed signal)” is written.
- Case 2 is a case where the optical disk 10 whose processing has been interrupted is used again by the same device 11.
- FIG. 13 is a diagram illustrating an operation example of Case 2.
- case 2 it is assumed that “1 (used signal)” has already been written in the area corresponding to # 2 of the optical disk 10.
- the device 11 compares the disc identifier DID acquired from the optical disc 10 with the disc identifier DID2 recorded in the device 11, and if they match, the device 11 determines that the processing has been interrupted when used before, and the content Allow the use of CDT. As a result, even when the processing is interrupted, the content CDT can be used by the correct device 11.
- FIG. 14 is a processing flow when the optical disk 10 whose processing is interrupted is used again by the same device 11.
- the device 11 confirms the usage control information UCI of the optical disc 10.
- “1 (used signal)” is written only in the area corresponding to the recording position information PI
- the disc identifier DID2 recorded in the device 11 and the disc identifier acquired from the optical disc 10 are further recorded.
- Case 3 Case 3 is a case where the optical disk 10 once used by another device is used by the device 11.
- FIG. 16 is a processing flow of case 3.
- the device 11 confirms the usage control information UCI of the optical disc 10. Then, the device 11 confirms that “1 (used signal)” is written outside the area corresponding to the recording position information PI, and does not permit the use of the content CDT.
- Case 4 Further, the case 4 will be described with reference to FIG. Case 4 is the case where the optical disk 10 once used in a certain device is used in another device 11 as in the case 3, but the value of the recording position information PI given to both devices is coincidentally coincident. It is.
- the device 11 confirms that the used signal is written in the area corresponding to the recording position information PI. Thereafter, the device 11 compares the disc identifier DID acquired from the optical disc 10 with the disc identifier DID2 recorded in the device 11. Since the disc identifier DID and the disc identifier DID2 do not match, the device 11 determines that the optical disc 10 has already been used by another device and the processing has not been interrupted during the previous use, and the content CDT Do not allow use. Thereby, unauthorized use of the content CDT can be prevented.
- FIG. 18 is a diagram illustrating a processing flow of case 4.
- the device 11 confirms the usage control information UCI of the optical disc 10. Then, it is confirmed that “1 (used signal)” is written only in the area corresponding to the recording position information PI.
- the device 11 confirms that the disc identifier DID2 recorded in the device 11 does not match the disc identifier DID acquired from the optical disc 10, and does not permit the use of the content CDT.
- Case 5 will be described with reference to FIG. Case 5 is an example of advanced fraud.
- the optical disc 10 is extracted at the stage where the used signal is not recorded on the optical disc 10, and further the disc identifier of the optical disc 10 is also sent to another device. Record the DID.
- the optical disc 10 is misrepresented as if processing is interrupted by a plurality of devices. This is realized by inserting the optical disc 10 into a certain device and turning off the power of the device immediately after recording the disc identifier DID on the device.
- each device holds different recording position information PI, unauthorized use of content can be prevented even in such a case.
- the content CDT In order to use the content CDT by the first device 11, it cannot be used unless the used signal is recorded in the area corresponding to the recording position information PI “# 2”.
- the second device 11 checks whether or not the used signal is recorded outside the area corresponding to the recording position information PI “# 5”, and if it is recorded, the content CDT cannot be used.
- the content CDT cannot be used in the third and subsequent devices 11 as well.
- the device 11 uses content recorded on an optical disc, and the optical disc has a disc identifier area for holding a disc identifier for specifying the optical disc, and the content recorded on the disc is unusable.
- a holding unit a position information holding unit that holds position information for specifying a partial area in which control information is to be recorded; an identifier reading unit that reads the disc identifier from the disc identifier region of the optical disc; and the position information To determine whether control information is recorded in a partial area other than the partial area indicated by
- the determination by the determination unit the determination by the first determination unit is negative
- the second determination unit that determines whether control information is recorded in the partial area indicated by the position information
- the determination by the second determination unit When the determination is positive, the determination by the third determination unit that determines whether the disc identifier read by the identifier reading unit is held in the disc identifier holding unit and the determination by the second determination unit are negative.
- a usage control unit that uses the content when the determination by the third determination unit is affirmative.
- the disc identifier holding unit corresponds to the disc identifier storage unit 115 of FIG. 5
- the position information holding unit corresponds to the recording position information storage unit 113 of FIG. 5
- the identifier reading unit is shown in FIG. 5
- the first determination unit, the second determination unit, and the third determination unit correspond to the usage permission determination unit 114 of FIG. 5, and the usage control unit of FIG. This corresponds to the content use unit 119.
- the first determination unit corresponds to step S1203 in FIG. 9, the second determination unit corresponds to step S1204 in FIG. 9, and the third determination unit corresponds to step S1205 in FIG.
- the device 11 further includes a control information writing unit that writes control information in a partial area indicated by the position information in the control information area when the determination by the second determination unit is negative, A disc identifier recording unit that records the disc identifier read by the reading unit as an acquired disc identifier in the disc identifier holding unit, and the usage control unit confirms that the control information has been written in the partial area. After that, the content is used.
- control information writing unit corresponds to the usage control information writing processing unit 117 and the optical disc input / output unit 111 of FIG. 5
- disc identifier recording unit corresponds to the disc identifier recording unit 116 of FIG. .
- use control information confirmation unit 118 in FIG. 5 confirms whether or not the control information is written in the partial area.
- FIG. 20 shows an example of a configuration diagram of the device 200 according to Embodiment 2 of the present invention. 20, the same components as those in the configuration diagram of the device 11 in FIG. 5 according to the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- the recording position information PI is stored in advance in the recording position information storage unit 113, and the use of content on the optical disk is controlled using the recording position information P1.
- the present invention is not limited to this.
- the device 200 includes a device identifier storage unit 211 and a recording position information calculation unit 212 instead of the recording position information storage unit 113.
- the device identifier storage unit 211 holds a device identifier ID that identifies the device 200.
- the recording position information calculation unit 212 acquires the device identifier ID from the device identifier storage unit 211 and calculates the recording position information PI based on the device identifier ID.
- the recording position information calculation unit 212 uses SHA-1 (Secure Hash Standard-1).
- the device identifier ID is input to the algorithm to obtain an output value that is a hash value.
- the remainder when the output value is divided by 10 is set as the recording position information P1 of the device 200.
- FIG. 21 shows an example of a configuration diagram of a device 300 according to Embodiment 3 of the present invention.
- the content recorded on the optical disc 10 is controlled so that the content recorded on the optical disc 10 can be used when the usage control information confirmation unit 118 determines “possible”. Not exclusively.
- the device 300 includes a content acquisition unit 301, a content storage unit 302, and a content validation setting unit 303.
- the content acquisition unit 301 acquires the content CDT from the optical disc 10 and records it in the content storage unit 302 when the use permission determination unit 114 determines “possible”. At that time, the content acquisition unit 301 sets the availability flag UF corresponding to the acquired content CDT to “impossible”.
- the content storage unit 302 stores the content CDT acquired from the optical disc.
- the content storage unit 302 holds an availability flag UF that controls the use of the content CDT.
- the availability flag UF is “available”, the device 300 can use the content CDT, and when the availability flag UF is “impossible”, the device 300 cannot use the content CDT.
- the content validation setting unit 303 sets the availability flag UF stored in the content storage unit 302 to “available”. Set to.
- the content CDT acquired from the optical disc 10 is in an unusable state at the initial stage, and the availability flag UF is set to “available” only after confirmation by the usage control information confirmation unit 118 is completed. When set to, it becomes available.
- content security is enhanced by using the availability flag.
- FIG. 22 shows an example of a configuration diagram of the device 400 according to Embodiment 4 of the present invention. 22, the same components as those in the configuration diagram of the device 11 in FIG. 5 according to the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- the recording position information calculation unit 212 of the device 200 calculates the recording position information PI based on the device identifier ID, but the present invention is not limited to this.
- the device 400 includes a device identifier storage unit 211, a time-varying element generation unit 411, and a recording position information calculation unit 412.
- the time-varying element generation unit 411 has a timer, for example, and outputs a value that changes with time.
- the recording position information calculation unit 412 calculates the recording position information PI using the device identifier ID and the value output from the time-varying element generation unit 411.
- the value that changes with time can be the calendar month (January to December), day (1st to 31st), hour (0 to 23:00), minute (0 to 59 minutes), or these Or a combination.
- FIG. 23 shows an example of a configuration diagram of a device 500 according to Embodiment 5 of the present invention.
- the same components as those in the configuration diagram of the device 11 in FIG. 23 are identical to the configuration diagram of the device 11 in FIG. 23.
- the recording position information calculation unit 212 calculates the recording position information PI based on the device identifier ID, but the present invention is not limited to this.
- the device 500 includes a device identifier storage unit 211 and a recording position information calculation unit 511.
- the recording position information calculation unit 511 acquires the disc identifier DID from the optical disc 10. Then, the recording position information PI is calculated using the obtained disk identifier DID and the device identifier ID held in the device identifier storage unit 211.
- the fifth embodiment by combining two types of identifiers, it is possible to avoid accidental duplication of the recording position information PI among a plurality of devices, and to further enhance security when using the content CDT. I can do it.
- FIG. 24 is a configuration diagram of the content control system according to the sixth embodiment.
- the content control system according to the sixth embodiment includes a device 600 and an optical disc 601. Content is recorded on the optical disc 601, and the device 600 uses the content recorded on the optical disc 601.
- the device 600 As an example of “use of content” by the device 600, a case where content recorded on the optical disc 601 is installed in a storage area inside the device 600 will be described as a specific example.
- the device 600 first reads the unusable content from the optical disc 601 and stores it in the internal storage area. Then, when it is determined as “available” in the availability determination, the installation process is completed by changing the content in the unavailable state to the available state.
- the optical disc 601 is a read-only ROM disc as an example, and includes a control information area 602 and a content storage unit 604.
- the content storage unit 604 is in the general data area 102 described in the first embodiment, and stores content.
- the control information area 602 is in the lead-in area 101 described in the first embodiment, and includes a plurality of partial areas 603a, 603b, 603c,. Each partial area is an area in which 1-bit information can be recorded as an example, and control information is recorded by a device.
- the control information is information corresponding to the “used signal” described in the first embodiment.
- the control information recorded in the control information area 602 is used to install “the content can be installed in only one device. Is realized. That is, in the present embodiment, when the device 600 installs the content on the optical disc 601, even if the optical disc 601 is inserted into another device, the other device installs the content recorded on the optical disc 601. I can't do it.
- the device 600 includes a content storage unit 611, a position information holding unit 612, a reading unit 613, a determination unit 614, a usage control unit 615, and a writing unit 620, as shown in FIG.
- the content storage unit 611 stores content acquired from the optical disc 601. As described above, in the present embodiment, the content is first stored in the content storage unit 611 in a state where it is set to be unusable. As a method for setting the content to the unusable state, the usability flag UF can be used as in the third embodiment.
- the position information holding unit 612 holds position information for specifying one partial area in which the own apparatus should record the control information among a plurality of partial areas included in the control information area 602 of the optical disc 601.
- the reading unit 613 reads information in the control information area 602 of the optical disc 601.
- the determination unit 614 determines whether or not the content stored in the content storage unit 611 can be used, using the information read by the reading unit 613 and the position information stored in the position information storage unit 612. When determining that the content is usable, the determination unit 614 outputs a permission signal to the usage control unit 615. When determining that the content is unusable, the determination unit 614 outputs an error signal to the usage control unit 615.
- the usage control unit 615 When the usage control unit 615 receives the permission signal from the determination unit 614, the usage control unit 615 changes the content stored in the content storage unit 611 to a usable state. When receiving the error signal from the determination unit 614, the usage control unit 615 maintains the content stored in the content storage unit 611 in an unusable state. The usage control unit 615 uses the content when the content becomes available.
- the writing unit 620 has a function of writing control information in a partial area in the control information area 602 of the optical disc 601.
- the writing unit 620 may write control information using a BCA technique, or may write control information using a reading laser. That is, the writing unit 620 only needs to have a function of writing control information by physically and irreversibly changing the film on the optical disc 601.
- FIG. 25 is a processing flow of the device 600.
- the reading unit 613 of the device 600 reads the information in the area from the control information area 602 of the optical disc 601 (step S101). Reading unit 613 outputs the read information to determination unit 614. Next, the determination unit 614 reads position information from the position information holding unit 612 (step S102).
- the determination unit 614 determines whether or not control information is recorded in a partial area other than the partial area indicated by the position information read in step S102 in the control information area 602 (step S103).
- control information is recorded in a partial area other than the partial area indicated by the position information (YES in step S103), the content recorded on the optical disc 601 has already been installed by another device, and thus determination unit 614 Determines that the content cannot be used (step S104), and outputs an error signal to the usage control unit 615.
- Step S105 When control information is not recorded in a partial area other than the partial area indicated by the position information (NO in step S103), the determination unit 614 determines whether control information is recorded in the partial area indicated by the position information.
- the optical disc 601 When the control information is not recorded in the partial area indicated by the position information (NO in step S105), the optical disc 601 is in the stage of being used for the first time by the device 600, and therefore the determination unit 614 sends the position to the writing unit 620. Output information.
- the writing unit 620 When receiving the position information from the determination unit 614, the writing unit 620 writes the control information in the partial area indicated by the position information (step S106). Thereafter, the determination unit 614 reads information in the area from the control information area 602 via the reading unit 613, and confirms that the control information has been correctly recorded (step S107). After confirmation, the determination unit 614 determines that the content can be used, and outputs a permission signal to the usage control unit 615.
- the determination unit 614 determines that the installation process is interrupted due to a power failure and determines that the content can be used. A permission signal is output to the usage control unit 615.
- the use control unit 615 changes the content recorded in the content storage unit 611 to an available state only when the permission signal is received from the determination unit 615, and permits the use of the content (step S108).
- the device 600 may be configured to read the content from the optical disc 601 and store it in the content storage unit 611 after the determination unit 614 determines that the content is usable. Good.
- the device 600 further includes a content acquisition unit that acquires content from the optical disc 601 in an unusable state.
- the case where content is installed and used is described as a specific example of content use.
- the device 600 does not install the content on the optical disc 601. Just play it.
- the content storage unit 611 shown in FIG. 24 is not necessary.
- Each of the above devices is specifically a computer system including at least some components such as a microprocessor, a ROM, a RAM, a hard disk unit, a display unit, a keyboard, and a mouse.
- a computer program is stored in the RAM or the hard disk unit.
- Each device achieves its functions by the microprocessor operating according to the computer program.
- the computer program is configured by combining a plurality of instruction codes indicating instructions for the computer in order to achieve a predetermined function.
- the system LSI is a super multifunctional LSI manufactured by integrating a plurality of components on one chip, and specifically, a computer system including a microprocessor, a ROM, a RAM, and the like. . A computer program is stored in the RAM. The system LSI achieves its functions by the microprocessor operating according to the computer program.
- a part or all of the constituent elements constituting each of the above devices may be constituted by an IC card or a single module that can be attached to and detached from each device.
- the IC card or module is a computer system that includes a microprocessor, ROM, RAM, and the like.
- the IC card or the module may include the super multifunctional LSI described above.
- the IC card or the module achieves its functions by the microprocessor operating according to the computer program. This IC card or this module may have tamper resistance.
- the present invention may be realized by a method described in a flowchart or the like. Moreover, it is good also as a computer program which implement
- a computer program recorded on a computer-readable recording medium such as a flexible disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray Disc), semiconductor memory, etc. It is good.
- the present invention is not limited to this, and a BD-ROM or a CD-ROM may be used. Furthermore, the present invention is not limited to the case where a read-only ROM type optical disk is used.
- the present invention may be any device provided with at least information that can specify the recording position of the used signal on the package medium on which the content is recorded.
- the present invention includes a case where the contents described in the above embodiments and modifications are combined.
- the present invention can be used as a technology for correctly controlling the use of content even in the case where power is cut off during processing in an industry that manufactures and sells equipment that uses content recorded on an optical disc. Furthermore, it can be used as a technique for preventing unauthorized use of content in the industry of recording and selling content on an optical disc.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
図1は、本発明の実施の形態1におけるコンテンツ制御システム1の構成図である。
先ず、光ディスク10の構成の一例について図面を用いて説明する。ここでは光ディスクの一例として、DVD-ROM(DIGITAL VERSATILE DISC-READ ONLY MEMORY)を用いる。
図3は、実施の形態1におけるリードイン領域101の一例を示す図である。リードイン領域101は、図3に示す通り、ディスク識別子領域1011と利用制御情報領域1012とから構成される。
図4は、実施の形態1における一般データ領域102の一例を示す図である。一般データ領域102は、図4に示す通り、主にコンテンツ領域1021から構成される。コンテンツ領域1021には、コンテンツCDTが記録されている。コンテンツCDTは、機器11で利用されるデータであり、例えば静止画データ、テキストデータ、動画データ、ゲームデータ、コンピュータプログラムなどである。
次に、機器11の構成について図面を用いて説明する。
光ディスク入出力部111は、光ディスク10上のリードイン領域101および一般データ領域102に記録されているデータを読み取る機能を有する。
利用制御情報取得部112は、光ディスク10が機器11に挿入(装着)された場合、もしくは、既に光ディスク10が機器11に挿入(装着)されている状態において利用者から利用指示を受けた場合に、光ディスク入出力部111を介して、光ディスク10のリードイン領域101から、ディスク識別子DIDおよび利用制御情報UCIを取得する。利用制御情報取得部112は、取得したディスク識別子DIDおよび利用制御情報UCIを、利用許可判断部114に出力する。
図6に、本発明の実施の形態1における記録位置情報保管部113を示す。記録位置情報保管部113は、図6に示す通り、記録位置情報PIを保管する。記録位置情報PIは、光ディスク10のリードイン領域101の利用制御情報領域1012に含まれる複数の領域のうちの一つの領域(#1~#N)を特定するための情報である。図6の例では、記録位置情報P1として「#2」が保管されている。
利用許可判断部114は、利用制御情報取得部112からディスク識別子DIDと利用制御情報UCIとを取得する。また、利用許可判断部114は、記録位置情報保管部113から記録位置情報PIを取得する。
図7に、実施の形態1におけるディスク識別子保管部115を示す。ディスク識別子保管部115は、後述するディスク識別子記録部116により記録されたディスク識別子を保管する。図7の例では、ディスク識別子保管部115は、ディスク識別子DID2を保管している。
ディスク識別子記録部116は、利用許可判断部114から記録位置情報PIとディスク識別子DIDとを取得する。そして、ディスク識別子記録部116は、ディスク識別子保管部115に、ディスク識別子DIDを記録する。さらに、ディスク識別子記録部116は、記録位置情報PIを利用制御情報書込処理部117へ出力する。
利用制御情報書込処理部117は、ディスク識別子記録部116から記録位置情報PIを取得すると、光ディスク入出力部111を介して、光ディスク10のリードイン領域101の利用制御情報領域1012において、記録位置情報PIに対応する領域に「1(利用済信号)」を記録する。そして、利用制御情報書込処理部117は、記録位置情報PIを利用制御情報確認部118に出力する。
利用制御情報確認部118は、利用制御情報書込処理部117から記録位置情報PIを受け取ると、光ディスク10のリードイン領域101の利用制御情報領域1012から利用制御情報UCIを取得する。そして、利用制御情報確認部118は、記録位置情報PIに対応する領域に「1(利用済信号)」が記録されているか否かを確認する。
コンテンツ利用部119は、利用制御情報確認部118から「許可信号」を受け取った場合、光ディスク入出力部111を介して、光ディスク10上のコンテンツCDTを取得し、利用する。コンテンツ利用部119は、利用制御情報確認部118から「エラー信号」を受け取った場合、コンテンツCDTを取得することなく、処理を終了する。
以下では、機器11の動作についてフローチャートを用いて説明する。
4.実施の形態1の効果
次に、実施の形態1の効果について具体例を用いて説明する。
(1)ケース1
ケース1は、新しい光ディスク10を機器11で最初に利用する場合である。
(2)ケース2
ケース2は、処理が中断した光ディスク10を再度同じ機器11で利用する場合である。
(3)ケース3
ケース3は、別の機器が一度利用した光ディスク10を機器11で利用する場合である。
(4)ケース4
さらに、図17を用いてケース4を説明する。ケース4は、ケース3と同様、ある機器で一度使用した光ディスク10を別の機器11で利用する場合であるが、偶然にも両機器に与えられている記録位置情報PIの値が同一の場合である。
(5)ケース5
最後に、図19を用いてケース5について説明する。ケース5は、高度な不正行為の一例である。
5.実施の形態1のまとめ
以上説明した実施の形態1に係る機器11についてまとめると、以下のようになる。
次に、本発明に係る実施の形態2について説明する。
(実施の形態3)
図21は、本発明の実施の形態3に係る機器300の構成図の一例を示す。図21において、実施の形態1に係る図5の機器11の構成図と同じ構成要素については、同じ符号を用い説明を省略する。
(実施の形態4)
図22は、本発明の実施の形態4に係る機器400の構成図の一例を示す。図22において、実施の形態1に係る図5の機器11の構成図と同じ構成要素については、同じ符号を用い説明を省略する。
(実施の形態5)
図23は、本発明の実施の形態5に係る機器500の構成図の一例を示す。図23において、実施の形態1に係る図5の機器11の構成図と同じ構成要素については、同じ符号を用い説明を省略する。
(実施の形態6)
ここでは、本発明の実施の形態6について説明する。
本発明の上記実施の形態に基づき説明してきたが、本発明は上記実施の形態に限定されないのは勿論であり、以下のような場合も本発明に含まれる。
10 光ディスク
11 機器
101 リードイン領域
102 一般データ領域
111 光ディスク入出力部
112 利用制御情報取得部
113 記録位置情報保管部
114 利用許可判断部
115 ディスク識別子保管部
116 ディスク識別子記録部
117 利用制御情報書込処理部
118 利用制御情報確認部
119 コンテンツ利用部
200 機器
211 機器識別子保管部
212 記録位置情報計算部
300 機器
301 コンテンツ取得部
302 コンテンツ保管部
303 コンテンツ有効化設定部
400 機器
411 時変要素生成部
412 記録位置情報計算部
500 機器
511 記録位置情報計算部
600 機器
601 光ディスク
602 制御情報領域
603a~603n 部分領域
604 コンテンツ記憶部
611 コンテンツ記憶部
612 位置情報保持部
613 読出部
614 判断部
615 利用制御部
620 書込部
1011 ディスク識別子領域
1012 利用制御情報領域
Claims (26)
- 光ディスクに記録されているコンテンツを利用する機器であって、
前記光ディスクは、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域を備え、
前記機器は、
制御情報を記録すべき部分領域を特定するための位置情報を保持する位置情報保持部と、
前記制御情報領域内の情報を読み出す読出部と、
前記読出部により読み出された情報と前記位置情報とを用いて、前記コンテンツの利用可否を判断する判断部と、
利用可と判断された場合に、前記コンテンツを利用する利用制御部と
を備えることを特徴とする機器。 - 前記判断部は、前記位置情報保持部に保持されている位置情報が示す部分領域以外の何れかの部分領域に制御情報が記録されている場合に、前記コンテンツを利用不可と判断する
ことを特徴とする請求項1に記載の機器。 - 前記判断部は、前記位置情報保持部に保持されている位置情報が示す部分領域に既に制御情報が記録されている場合に、前記コンテンツを利用可能と判断する
ことを特徴とする請求項1に記載の機器。 - 前記判断部は、すべての部分領域に制御情報が記録されていない場合に、前記コンテンツを利用可能と判断し、
前記機器は、さらに、
前記コンテンツが利用可能と判断された場合に、前記位置情報保持部に保持されている位置情報が示す前記制御情報領域内の部分領域に、制御情報を書き込む書込部を備え、
前記利用制御部は、前記部分領域に前記制御情報が書き込まれたことが確認された後、前記コンテンツを利用する
ことを特徴とする請求項1に記載の機器。 - 前記機器は、さらに、
前記光ディスクから前記コンテンツを利用不可能な状態で取得するコンテンツ取得部と、
取得したコンテンツを記憶するコンテンツ記憶部とを備え、
前記利用制御部は、前記位置情報保持部に保持されている位置情報が示す前記制御情報領域内の部分領域に前記制御情報が書き込まれたことが確認された後、前記コンテンツ記憶部に記憶されている前記コンテンツを利用不可能な状態から利用可能な状態に変更し、その後、コンテンツを利用する
ことを特徴とする請求項4に記載の機器。 - 前記書込部は、前記光ディスク上の膜を物理的かつ不可逆的に変化させることにより、前記制御情報を書き込む
ことを特徴とする請求項5に記載の機器。 - 前記制御情報領域は、前記光ディスクのリードイン領域に存在し、
前記書込部は、前記光ディスクのリードイン領域に存在する前記部分領域に、レーザー技術を用いて前記制御情報を記録する
ことを特徴とする請求項6記載の機器。 - 前記光ディスクはROMディスクであって、前記制御情報領域は、前記リードイン領域のバーストカッティング領域に存在し、
前記書込部は、ROMディスクのバーストカッティング領域に存在する前記部分領域にバーストカッティング技術を用いて前記制御情報を書き込む
ことを特徴とする請求項7に記載の機器。 - 前記機器は、さらに、
当該機器に固有の値である機器識別子を保持する識別子保持部と、
前記機器識別子を用いて前記位置情報を算出し、算出された前記位置情報を、前記位置情報保持部に記録する位置情報算出部とを備える
ことを特徴とする請求項4に記載の機器。 - 前記制御情報領域の各部分領域は、1ビットのデータを記録可能であり、
前記書込部は、1ビットの前記制御情報を前記部分領域に書き込む
ことを特徴とする請求項4に記載の機器。 - 光ディスクに記録されているコンテンツを利用する機器であって、
前記光ディスクは、当該光ディスクを特定するディスク識別子を保持するディスク識別子領域と、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域とを備え、
前記機器は、
利用可能なコンテンツが記録されている光ディスクを特定する取得済みディスク識別子を保持するためのディスク識別子保持部と、
制御情報を記録すべき部分領域を特定するための位置情報を保持する位置情報保持部と、
前記光ディスクの前記ディスク識別子領域から、前記ディスク識別子を読み出す識別子読出部と、
前記位置情報が示す部分領域以外の部分領域に制御情報が記録されているか判断する第1判断部と、
前記第1判断部による判断が否定的である場合に、前記位置情報が示す部分領域に制御情報が記録されているか判断する第2判断部と、
前記第2判断部による判断が肯定的である場合に、前記識別子読出部により読み出された前記ディスク識別子が前記ディスク識別子保持部に保持されているか判断する第3判断部と、
前記第2判断部による判断が否定的である場合および前記第3判断部による判断が肯定的である場合に、前記コンテンツを利用する利用制御部と
を備えることを特徴とする機器。 - 前記機器は、さらに、
前記第2判断部による判断が否定的である場合に、
前記位置情報保持部に保持されている位置情報が示す前記制御情報領域内の部分領域に、制御情報を書き込む制御情報書込部と、
前記読出部が読み出したディスク識別子を取得済みディスク識別子として前記ディスク識別子保持部に記録するディスク識別子記録部とを備え、
前記利用制御部は、前記位置情報保持部に保持されている位置情報が示す前記制御情報領域内の部分領域に前記制御情報が書き込まれたことが確認された後、前記コンテンツを利用する
ことを特徴とする請求項11に記載の機器。 - 前記機器は、さらに、
前記光ディスクから前記コンテンツを利用不可能な状態で取得するコンテンツ取得部と、
取得した前記コンテンツを記憶するコンテンツ記憶部とを備え、
前記利用制御部は、前記位置情報保持部に保持されている位置情報が示す前記制御情報領域内の部分領域に前記制御情報が書き込まれたことが確認された後、前記コンテンツ記憶部に記憶されている前記コンテンツを利用不可能な状態から利用可能な状態に変更し、その後、コンテンツを利用する
ことを特徴とする請求項12に記載の機器。 - 前記制御情報書込部は、前記光ディスク上の膜を物理的かつ不可逆的に変化させることにより、前記制御情報を書き込む
ことを特徴とする請求項13に記載の機器。 - 前記制御情報領域は、前記光ディスクのリードイン領域に存在し、
前記制御情報書込部は、前記光ディスクのリードイン領域に存在する前記部分領域に、レーザー技術を用いて前記制御情報を記録する
ことを特徴とする請求項14記載の機器。 - 前記光ディスクはROMディスクであって、前記制御情報領域は、前記リードイン領域のバーストカッティング領域に存在し、
前記制御情報書込部は、ROMディスクのバーストカッティング領域に存在する前記部分領域にバーストカッティング技術を用いて前記制御情報を書き込む
ことを特徴とする請求項15に記載の機器。 - 前記機器は、さらに、
当該機器に固有の値である機器識別子を保持する識別子保持部と、
前記機器識別子を用いて前記位置情報を算出し、算出された前記位置情報を、前記位置情報保持部に記録する位置情報算出部とを備える
ことを特徴とする請求項11に記載の機器。 - 前記制御情報領域の各部分領域は、1ビットのデータを記録可能であり、
前記制御情報書込部は、1ビットの前記制御情報を前記部分領域に書き込む
ことを特徴とする請求項11に記載の機器。 - 光ディスクに記録されているコンテンツを利用する機器で用いられるコンテンツの利用方法であって、
前記光ディスクは、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域を備え、
前記機器は、制御情報を記録すべき部分領域を特定するための位置情報を保持しており、
前記方法は、
前記制御情報領域内の情報を読み出す読出ステップと、
前記読出ステップにより読み出された情報と前記位置情報とを用いて、前記コンテンツの利用可否を判断する判断ステップと、
利用可と判断された場合に、前記コンテンツを利用する利用制御ステップと
を含むことを特徴とする方法。 - 光ディスクに記録されているコンテンツを利用する機器で用いられるコンピュータプログラムあって、
前記光ディスクは、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域を備え、
前記機器は、制御情報を記録すべき部分領域を特定するための位置情報を保持しており、
前記コンピュータプログラムは、
前記制御情報領域内の情報を読み出す読出ステップと、
前記読出ステップにより読み出された情報と前記位置情報とを用いて、前記コンテンツの利用可否を判断する判断ステップと、
利用可と判断された場合に、前記コンテンツを利用する利用制御ステップとを前記機器に実行させる
ことを特徴とするコンピュータプログラム。 - 光ディスクに記録されているコンテンツを利用する機器で用いられるコンピュータプログラムを記録しているコンピュータ読み取り可能な非一時的な記録媒体であって、
前記光ディスクは、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域を備え、
前記機器は、制御情報を記録すべき部分領域を特定するための位置情報を保持しており、
前記コンピュータプログラムは、
前記制御情報領域内の情報を読み出す読出ステップと、
前記読出ステップにより読み出された情報と前記位置情報とを用いて、前記コンテンツの利用可否を判断する判断ステップと、
利用可と判断された場合に、前記コンテンツを利用する利用制御ステップとを前記機器に実行させる
ことを特徴とする記録媒体。 - 光ディスクに記録されているコンテンツを利用する機器で用いられる集積回路であって、
前記光ディスクは、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域を備え、
前記集積回路は、
制御情報を記録すべき部分領域を特定するための位置情報を保持する位置情報保持部と、
前記制御情報領域内の情報を読み出す読出部と、
前記読出部により読み出された情報と前記位置情報とを用いて、前記コンテンツの利用可否を判断する判断部と、
利用可と判断された場合に、前記コンテンツを利用する利用制御部と
を備えることを特徴とする集積回路。 - 光ディスクに記録されているコンテンツを利用する機器で用いられるコンテンツの利用方法であって、
前記光ディスクは、当該光ディスクを特定するディスク識別子を保持するディスク識別子領域と、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域とを備え、
前記機器は、
利用可能なコンテンツが記録されている光ディスクを特定する取得済みディスク識別子を保持するためのディスク識別子保持部と、
制御情報を記録すべき部分領域を特定するための位置情報を保持する位置情報保持部とを備え、
前記方法は、
前記光ディスクの前記ディスク識別子領域から、前記ディスク識別子を読み出す識別子読出ステップと、
前記位置情報が示す部分領域以外の部分領域に制御情報が記録されているか判断する第1判断ステップと、
前記第1判断ステップによる判断が否定的である場合に、前記位置情報が示す部分領域に制御情報が記録されているか判断する第2判断ステップと、
前記第2判断ステップによる判断が肯定的である場合に、前記識別子読出ステップにより読み出された前記ディスク識別子が前記ディスク識別子保持部に保持されているか判断する第3判断ステップと、
前記第2判断ステップによる判断が否定的である場合および前記第3判断ステップによる判断が肯定的である場合に、前記コンテンツを利用する利用制御ステップと
を含むことを特徴とする方法。 - 光ディスクに記録されているコンテンツを利用する機器で用いられるコンピュータプログラムであって、
前記光ディスクは、当該光ディスクを特定するディスク識別子を保持するディスク識別子領域と、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域とを備え、
前記機器は、
利用可能なコンテンツが記録されている光ディスクを特定する取得済みディスク識別子を保持するためのディスク識別子保持部と、
制御情報を記録すべき部分領域を特定するための位置情報を保持する位置情報保持部とを備え、
前記コンピュータプログラムは、
前記光ディスクの前記ディスク識別子領域から、前記ディスク識別子を読み出す識別子読出ステップと、
前記位置情報が示す部分領域以外の部分領域に制御情報が記録されているか判断する第1判断ステップと、
前記第1判断ステップによる判断が否定的である場合に、前記位置情報が示す部分領域に制御情報が記録されているか判断する第2判断ステップと、
前記第2判断ステップによる判断が肯定的である場合に、前記識別子読出ステップにより読み出された前記ディスク識別子が前記ディスク識別子保持部に保持されているか判断する第3判断ステップと、
前記第2判断ステップによる判断が否定的である場合および前記第3判断ステップによる判断が肯定的である場合に、前記コンテンツを利用する利用制御ステップとを前記機器に実行させる
ことを特徴とするコンピュータプログラム。 - 光ディスクに記録されているコンテンツを利用する機器で用いられるコンピュータプログラムを記録しているコンピュータ読み取り可能な非一時的な記録媒体であって、
前記光ディスクは、当該光ディスクを特定するディスク識別子を保持するディスク識別子領域と、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域とを備え、
前記機器は、
利用可能なコンテンツが記録されている光ディスクを特定する取得済みディスク識別子を保持するためのディスク識別子保持部と、
制御情報を記録すべき部分領域を特定するための位置情報を保持する位置情報保持部とを備え、
前記コンピュータプログラムは、
前記光ディスクの前記ディスク識別子領域から、前記ディスク識別子を読み出す識別子読出ステップと、
前記位置情報が示す部分領域以外の部分領域に制御情報が記録されているか判断する第1判断ステップと、
前記第1判断ステップによる判断が否定的である場合に、前記位置情報が示す部分領域に制御情報が記録されているか判断する第2判断ステップと、
前記第2判断ステップによる判断が肯定的である場合に、前記識別子読出ステップにより読み出された前記ディスク識別子が前記ディスク識別子保持部に保持されているか判断する第3判断ステップと、
前記第2判断ステップによる判断が否定的である場合および前記第3判断ステップによる判断が肯定的である場合に、前記コンテンツを利用する利用制御ステップとを前記機器に実行させる
ことを特徴とする記録媒体。 - 光ディスクに記録されているコンテンツを利用する機器で用いられる集積回路であって、
前記光ディスクは、当該光ディスクを特定するディスク識別子を保持するディスク識別子領域と、当該ディスクに記録されているコンテンツが利用不可状態であることを示す制御情報を記録可能な複数の部分領域から成る制御情報領域とを備え、
前記集積回路は、
利用可能なコンテンツが記録されている光ディスクを特定する取得済みディスク識別子を保持するためのディスク識別子保持部と、
制御情報を記録すべき部分領域を特定するための位置情報を保持する位置情報保持部と、
前記光ディスクの前記ディスク識別子領域から、前記ディスク識別子を読み出す識別子読出部と、
前記位置情報が示す部分領域以外の部分領域に制御情報が記録されているか判断する第1判断部と、
前記第1判断部による判断が否定的である場合に、前記位置情報が示す部分領域に制御情報が記録されているか判断する第2判断部と、
前記第2判断部による判断が肯定的である場合に、前記識別子読出部により読み出された前記ディスク識別子が前記ディスク識別子保持部に保持されているか判断する第3判断部と、
前記第2判断部による判断が否定的である場合および前記第3判断部による判断が肯定的である場合に、前記コンテンツを利用する利用制御部と
を備えることを特徴とする集積回路。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180002225.5A CN102449693B (zh) | 2010-03-29 | 2011-03-25 | 利用内容的设备、内容的利用方法及集成电路 |
EP11762213.4A EP2555197A4 (en) | 2010-03-29 | 2011-03-25 | Apparatus for using content, usage method of the content, computer program, recording medium and integrated circuit |
US13/319,429 US8576679B2 (en) | 2010-03-29 | 2011-03-25 | Apparatus and method for using content on an optical disc having plural partial areas for recording control information indicating that the use of the content is not permitted |
KR1020117027629A KR20130042418A (ko) | 2010-03-29 | 2011-03-25 | 콘텐츠를 이용하는 기기, 콘텐츠의 이용방법, 컴퓨터 프로그램, 기록매체 및 집적회로 |
JP2012508072A JP5838379B2 (ja) | 2010-03-29 | 2011-03-25 | コンテンツを利用する機器、制御方法、コンピュータプログラム、記録媒体および集積回路 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-074665 | 2010-03-29 | ||
JP2010074665 | 2010-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011121964A1 true WO2011121964A1 (ja) | 2011-10-06 |
Family
ID=44711728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/001785 WO2011121964A1 (ja) | 2010-03-29 | 2011-03-25 | コンテンツを利用する機器、コンテンツの利用方法、コンピュータプログラム、記録媒体および集積回路 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8576679B2 (ja) |
EP (1) | EP2555197A4 (ja) |
JP (1) | JP5838379B2 (ja) |
KR (1) | KR20130042418A (ja) |
CN (1) | CN102449693B (ja) |
WO (1) | WO2011121964A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6440323B2 (ja) * | 2016-03-04 | 2018-12-19 | 富士フイルム株式会社 | 画像記録装置、及びパラメータ設定方法 |
US11610000B2 (en) | 2020-10-07 | 2023-03-21 | Bank Of America Corporation | System and method for identifying unpermitted data in source code |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001332019A (ja) | 2000-05-17 | 2001-11-30 | Taiyo Yuden Co Ltd | ライトワンス型光ディスク用データ記録再生方法、ライトワンス型光ディスク用データ再生装置および記録媒体 |
JP2005149677A (ja) * | 2003-11-19 | 2005-06-09 | Sony Corp | 記録再生装置、記録媒体判別方法及び識別用再生情報算出方法 |
JP2005243120A (ja) * | 2004-02-25 | 2005-09-08 | Sharp Corp | 情報記録装置、その制御方法、情報記録プログラム、記録媒体 |
JP2007133608A (ja) * | 2005-11-09 | 2007-05-31 | Sony Corp | 情報処理装置、ソフトウェアインストール方法、および光ディスク |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69837113T2 (de) * | 1998-01-20 | 2007-06-06 | Fujitsu Ltd., Kawasaki | Datenspeicheranordnung und Steuerverfahren dafür |
JP2000242562A (ja) * | 1999-02-22 | 2000-09-08 | Nippon Columbia Co Ltd | 記録媒体及び再生装置 |
US7028011B1 (en) * | 1999-09-10 | 2006-04-11 | Eastman Kodak Company | Hybrid optical recording disc with copy protection |
US20030142560A1 (en) * | 2001-12-07 | 2003-07-31 | Pioneer Corporation | Data recording medium, reproduction apparatus, recording apparatus, reproducing method, recording method, computer-readable recorded medium in which reproducing program is recorded, and computer-readable recorded medium in which recording program is recorded |
WO2004066287A1 (en) * | 2003-01-23 | 2004-08-05 | Lg Electronics Inc. | Recording medium with an optional information and apparatus and methods for forming, recording, reproducing and controlling reproduction of the recording medium |
KR100499586B1 (ko) * | 2003-05-20 | 2005-07-07 | 엘지전자 주식회사 | 고밀도 광디스크의 복사 방지 정보 관리방법 및 그에 따른고밀도 광디스크와 복사 방지 정보 검출장치 |
-
2011
- 2011-03-25 US US13/319,429 patent/US8576679B2/en active Active
- 2011-03-25 JP JP2012508072A patent/JP5838379B2/ja active Active
- 2011-03-25 EP EP11762213.4A patent/EP2555197A4/en not_active Withdrawn
- 2011-03-25 CN CN201180002225.5A patent/CN102449693B/zh active Active
- 2011-03-25 KR KR1020117027629A patent/KR20130042418A/ko not_active Application Discontinuation
- 2011-03-25 WO PCT/JP2011/001785 patent/WO2011121964A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001332019A (ja) | 2000-05-17 | 2001-11-30 | Taiyo Yuden Co Ltd | ライトワンス型光ディスク用データ記録再生方法、ライトワンス型光ディスク用データ再生装置および記録媒体 |
JP2005149677A (ja) * | 2003-11-19 | 2005-06-09 | Sony Corp | 記録再生装置、記録媒体判別方法及び識別用再生情報算出方法 |
JP2005243120A (ja) * | 2004-02-25 | 2005-09-08 | Sharp Corp | 情報記録装置、その制御方法、情報記録プログラム、記録媒体 |
JP2007133608A (ja) * | 2005-11-09 | 2007-05-31 | Sony Corp | 情報処理装置、ソフトウェアインストール方法、および光ディスク |
Non-Patent Citations (1)
Title |
---|
See also references of EP2555197A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20120051203A1 (en) | 2012-03-01 |
EP2555197A1 (en) | 2013-02-06 |
US8576679B2 (en) | 2013-11-05 |
JP5838379B2 (ja) | 2016-01-06 |
KR20130042418A (ko) | 2013-04-26 |
CN102449693B (zh) | 2016-04-27 |
CN102449693A (zh) | 2012-05-09 |
EP2555197A4 (en) | 2017-05-03 |
JPWO2011121964A1 (ja) | 2013-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7979915B2 (en) | Recording device, replay device, integrated circuit, and control program | |
US6738904B2 (en) | Recordable storage medium with protected data area | |
KR101305639B1 (ko) | 복제 방지를 위한 비휘발성 저장 장치 및 그 저장 장치의 인증 방법 | |
KR101614950B1 (ko) | 저장 장치에 물리적 식별자를 생성하는 방법 및 기계로 읽을 수 있는 저장 매체 | |
JP2012008756A (ja) | 情報処理装置、および情報処理方法、並びにプログラム | |
JP2007133608A (ja) | 情報処理装置、ソフトウェアインストール方法、および光ディスク | |
JP5598115B2 (ja) | 情報処理装置、および情報処理方法、並びにプログラム | |
RU2297677C2 (ru) | Носитель записи для хранения цифрового продукта | |
JP2009272002A (ja) | 情報処理装置、ディスク、および情報処理方法、並びにプログラム | |
JP5838379B2 (ja) | コンテンツを利用する機器、制御方法、コンピュータプログラム、記録媒体および集積回路 | |
KR20080018071A (ko) | 컨텐츠 기록 장치 및 그 방법 | |
JP4713579B2 (ja) | アプリケーションプログラム | |
EP2400493B1 (en) | Information processing device, information processing method, and program | |
US20080002828A1 (en) | Information recording and reproducing apparatus and method | |
JP2011507143A (ja) | 駆動装置 | |
US8171566B2 (en) | Copyright protection data processing system and reproduction device | |
JP4731399B2 (ja) | 光ディスク装置及びデータ処理方法 | |
JP2019028972A (ja) | 記憶装置、ステータス管理方法、及びステータス管理プログラム | |
US20120180139A1 (en) | Information processor | |
WO2007083658A1 (ja) | 複製防止構造を生成する情報記録装置および情報記録方法 | |
JP2012185765A (ja) | 情報処理装置、情報処理装置の管理方法、情報処理装置の管理プログラム | |
JP2005128637A (ja) | ドライブ検査方法、及びドライブ検査プログラム | |
JP2006512716A (ja) | ディスクコピー防止機能の拡張性の向上 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180002225.5 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13319429 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20117027629 Country of ref document: KR Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11762213 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012508072 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011762213 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |