WO2004013757A1 - 記録媒体、情報伝送方法、端末装置、サーバ装置および記録方法 - Google Patents
記録媒体、情報伝送方法、端末装置、サーバ装置および記録方法 Download PDFInfo
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- WO2004013757A1 WO2004013757A1 PCT/JP2003/009189 JP0309189W WO2004013757A1 WO 2004013757 A1 WO2004013757 A1 WO 2004013757A1 JP 0309189 W JP0309189 W JP 0309189W WO 2004013757 A1 WO2004013757 A1 WO 2004013757A1
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Classifications
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- 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
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
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- 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
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- 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
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- 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
- G11B20/00137—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
- G11B20/00144—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users involving a user identifier, e.g. a unique customer ID
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- 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
- G11B20/00166—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
- G11B20/00173—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software wherein the origin of the content is checked, e.g. determining whether the content has originally been retrieved from a legal disc copy or another trusted source
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- 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
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00297—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
- G11B20/00304—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the lead-in area [LIA]
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- 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
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00297—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
- G11B20/00318—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the TOC
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- 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
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00347—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier wherein the medium identifier is used as a key
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- 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
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00391—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in subcodes, e.g. in the Q subcode of a CD
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- 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
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- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
Definitions
- the present invention relates to a recording medium, an information transmission method, a terminal device, a server device, and a recording method.
- Compact disc Compact disc (Compact D isci: CD) and digital versatile disc
- the identification information (ID) unique to the recording medium is recorded as medium information.
- ID identification information unique to the recording medium
- By recording this medium information it is possible to determine whether the recording medium is a genuine recording medium or an illegally copied recording medium, and use the medium information as an identifier.
- the medium information is also used as an identifier for obtaining specific service information (service contents such as music, video, software, etc.) by accessing a specific service organization, for example. It is conceivable to use some of them.
- specific service information service contents such as music, video, software, etc.
- this medium information can also be used as a means of a medium purchase campaign.
- Various services are such that, for example, when information recorded on a recording medium is encrypted information, key information for the decryption can be obtained from a management server that manages the medium information. This is because even if information is encrypted and recorded on a recording medium, if key information (such as a decryption key) for decryption is recorded on the same recording medium, This is because when the recording medium is illegally copied, the encrypted information may be decrypted using the key information recorded on the recording medium itself. By storing the key information separately from the recording medium, such unauthorized use can be eliminated.
- the information indicating the type of the recording medium can be used as information for double identifying the medium together with the medium identification information.
- An illegally copied recording medium can be effectively and reliably eliminated. This makes it possible to protect the copyright of the information recorded on the recording medium.
- this related information it is information (content) related to the recorded information or information to be recorded, such as music information, artist information related to music information, and video information (still images, videos).
- digital information such as program data used by a computer can be acquired as a new service.
- Target recording media include write-once recording media such as CD-R (CD-Recordable) discs, rewritable recording media such as CD-RW (CD-Rewritable) discs, and CD-RWs.
- CD-R CD-Recordable
- rewritable recording media such as CD-RW (CD-Rewritable) discs
- CD-RW CD-Rewritable
- CD-RW Compact Disc
- CD-RW Compact Disc
- the medium information recorded on the recording medium as described above is used for identifying the recording medium, at least the medium identification information is information that cannot be viewed by the user from the viewpoint of security. Information).
- the media information can be positioned as one of the identifiers for enjoying various services. In this case, it is preferable that the information be readable so that the user can check the medium information in advance. Invention opening
- the medium identification information includes user confirmation information that can be confirmed by the user, in other words, can be seen, so that the user confirmation information can be disclosed as information that can be provided to the user.
- Security of recording media While ensuring a variety of services.
- a recording medium according to the present invention described in claim 1 includes at least a lead-in area, a recording area in which information is recorded, and a lead-out area.
- Media information including at least media identification information including user confirmation information that can be confirmed by a user is recorded in at least one of the recording area and the lead-out area.
- the information transmission method according to the present invention described in claim 7 includes at least a lead-in area, a recording area in which information is recorded, and a lead-out area, and the lead-in area, the recording area, and the like.
- the above-described medium information read from a recording medium in which at least one of the readout areas has medium identification information including user confirmation information that can be confirmed by a user is recorded from a terminal device to a server device.
- the server device authenticates the transmitted media information by verifying the transmitted media information, and when the transmitted media information can be correctly authenticated, performs a verification process of the user confirmation information. While transmitting, information transmission to the terminal device is controlled based on the result of the collation processing.
- the terminal device includes at least a lead-in area, a recording area in which information is recorded, and a lead-out area.
- a transmission / reception unit that receives information transmitted from the outside together with the information read from the lead-in area of the recording medium by the head unit and a transmission / reception unit. Characterized that you have a control unit which performs operation control to display the user confirmation information read from by connexion recording medium head portion to based on the information received Te.
- the terminal device reduces the lead-in area, the recording area where information is recorded, and the lead-out area. At least one of the lead-in area, recording area, and lead-out area is read from a recording medium that has at least medium identification information including user confirmation information that can be confirmed by a user.
- a recording medium that has at least medium identification information including user confirmation information that can be confirmed by a user.
- Receiving and transmitting the transmitted medium information and transmitting the information a storage unit storing at least management information including the medium information, and storing the medium information received by the transmission / reception unit and the storage unit
- the received media information is authenticated based on the received media information, and if the received media information is correctly authenticated, the user verification information is collated, and the information terminal device is determined based on the collation result.
- a control unit for transmitting the data to the control unit.
- the recording method according to the present invention as set forth in claim 28, comprises: a disk substrate having a plurality of concave / convex patterns formed on one surface side based on information; and a reflective film formed on one surface of the disk substrate. And a protective film for protecting the reflective film, and at least a lead-in area, a recording area in which information is recorded, and a lead-out area.
- a medium information including at least medium identification information including user confirmation information that can be confirmed by a user is recorded in at least one of the area and the readout area.
- the user confirmation information using a part of the medium identification information is used as the service winning information, there is a convenience that the user can confirm for collation with the winning number.
- the security of the recording medium can be sufficiently ensured. Therefore, a recording medium with high security and resistant to unauthorized copying can be realized, or a recording medium with a privilege. Can be provided.
- the medium information including the user confirmation information is recorded in the error of the recording medium on which the data can be read but cannot be re-recorded (re-written), the recorded medium information can be re-written. Since it cannot be copied, it has the feature of preventing falsification of media information.
- the medium information is extracted and separated from the reproduced information based on the TOC information and the supcode data, stored, read out at a necessary timing, and confirmed by a user who is a part of the medium information. Since only information can be displayed on the display unit, The user can visually confirm the data confirmation information extracted and separated using the subcode data and TOC information for himself to confirm. This makes it easy to confirm that the number of the user confirmation information is the winning number, and when the medium information is used as information for receiving services stored in the management server, only the medium information is used. This is convenient because the service form can be managed.
- the present invention by connecting the terminal device having the medium information and the management server via the communication line network, it is possible to exchange information using the medium information. It has the feature that it can smoothly realize services to be provided and different customized services.
- the media information is the media information recorded on the recording medium, and since the management is performed on the management server side, the service management is realized without depending on the terminal device that reproduces the recording medium. it can.
- a service that stimulates the user's willingness to purchase can be realized using only the medium information while securing the security of the medium identification information unique to the recording medium.
- FIG. 1 is a conceptual diagram showing an embodiment of a writable recording medium according to the present invention.
- FIG. 2 is a conceptual diagram showing an embodiment of a recorded recording medium according to the present invention.
- FIG. 3 is a diagram showing an example of a format of the medium information according to the present invention.
- FIG. 4 is a conceptual diagram showing an embodiment of an information service system applicable to the present invention.
- FIG. 5 is a system diagram of a main part showing an embodiment of a terminal device according to the present invention.
- FIG. 6 is a system diagram of a main part showing an embodiment of a management server which is a server device according to the present invention.
- FIG. 7 is a system diagram of a main part showing an embodiment of a medium information reproducing apparatus applicable to the present invention.
- FIG. 8 is a flowchart illustrating an information transmission method as an example of data processing between the terminal device and the management server.
- FIG. 9 is a diagram illustrating a relationship with service content when user identification information is specified identification information.
- FIG. 10 is a flowchart showing a processing example on the management server side.
- FIG. 11 is a flowchart illustrating a processing example on the terminal device side.
- FIG. 12 is a flowchart illustrating a processing example on the management server side.
- FIG. 13 is a system diagram of a main part showing another embodiment of the medium information reproducing apparatus according to the present invention.
- FIG. 14 is a system diagram showing an embodiment of a medium information recording apparatus that realizes a recording method according to the present invention when recording medium information on a recorded recording medium.
- FIG. 15 is an explanatory diagram for explaining the operation. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows a disk-shaped recording medium 10 which is a writable recording medium according to the present invention.
- the recording medium 10 has a main recording area 14 and auxiliary recording areas 12, 16 and 18.
- the main recording area 14 is used for writing information from a terminal device (not shown) having a recording function.
- Auxiliary recording areas 12 and 16 are areas where writing cannot be performed from the terminal device except for special conditions such as initialization, and auxiliary recording areas 18 and 16 are areas except for finalization. .
- Examples of the writable recording medium include, for example, a write-once CD-R disc and a rewritable CD-RW disc. Not only CD-R discs and CD-RW discs but also write-once DVD-R discs and rewritable DVD-RW discs may be used.
- the basic structure of the optical disk 10 is such that a readout area 12 is located at the outermost periphery, and a program, which is a recording area for content data, is located inside the readout area 12.
- Area (PA) 14 is provided.
- This program area 14 corresponds to the main recording area described above.
- a lead-in area 16 for recording TOC (Table of Contents) information is provided on the inner side of the program area 14, and a program memory area (PMA) 18 is provided on the inner side.
- the lead-out area 12, the lead-in area 16, and the program memory area 18 correspond to the above-described auxiliary recording area.
- the program memory area 18 makes it impossible to record subsequent information on a write-once optical disc such as a CD-R disc, and completes or finalizes the TOC information in the lead-in area 16. Preliminary TOC information is recorded. While the temporary TOC information is recorded in the program memory area 18, content data can be additionally recorded in the program area 14. However, when an operation to be completed is performed, the TOC information is written in the lead-in area 16 and the subsequent writing (recording) of information in the program area 14 is not possible.
- FIG. 2 shows an optical disc as a read-only recording medium in which data is recorded in advance by a plurality of concavo-convex patterns, so-called a plurality of pits.
- the optical disc 10a is composed of a program area 14a which is a main recording area in which data is recorded, a readout area 12a on an outer peripheral side and a lead-in area 16a on an inner peripheral side.
- Examples of the read-only recording medium include a CD-ROM disk and a DVD-ROM disk.
- the medium information U ID is recorded on the recording media 10 and 10a shown in FIG. 1 or FIG.
- the medium information UID acquires the information (service content data) stored in the management server after the authentication of the medium and the authentication when accessing a specific server device (hereinafter referred to as a management server) described later. Used for The media information U ID is used for services provided to those who have purchased the recording media 10 and 10a properly.
- the medium information (UID) unique to the recording medium is recorded irrespective of whether the recording medium is a read-only recording medium or a recordable recording medium.
- the media information UID is the media identification information unique to the media and the media attached to the media identification information. It is a series of related information.
- FIG. 3 shows a specific example of a medium information UID composed of medium identification information and related information.
- the format of the medium information UID shown in Fig. 3 is composed of 32 bits (256 bits), and the serial number ( 8 bytes) that functions as the medium identification information is located at the beginning.
- the medium identification information is information unique to the medium, and is information including a serial number having a predetermined number of digits.
- the recording medium itself is identified by determining the medium identification information.
- a part of this medium identification information for example, a predetermined number of bits (for example, 3 bits) from the LSB side is used as user confirmation information.
- the user confirmation information is used as service winning information and functions as a kind of lottery number.
- the related information is located next to the information consisting of the serial number.
- the creator information indicates the content provider level information for the recording medium.
- the following manufacturer information is, for example, information on the maker name (disk maker) of the recording medium itself, and the system usage information is for the type of the recording medium, the decryption key information for cipher text, and the recording medium.
- the service form information is service information different from the information provided by the above-described user confirmation information.
- the recording medium is a recordable recording medium, for example, information indicating the number of songs for which music can be downloaded for a fee. Information such as the number of genres can be considered. Details of the service form information will be described later. While these creator information and maker information have a 4-byte configuration, the system usage information has an 8-byte configuration due to the amount of information.
- the user can confirm a part of the medium identification information as the user confirmation information, that is, the information can be viewed.
- the user confirmation information not only a part of the medium identification information but also the creator information and the like.
- Information that can be confirmed by the user including manufacturer information, can also be used.
- the creator information includes information such as the artist name and the recording studio
- the information about the artist name and the recording studio is useful information for the user. It can also be used as user confirmation information including the section.
- a code to prevent tampering such as a message, a digest, and a code
- the MDC is added with 8 bytes to form the media information UID as shown in FIG.
- the arrangement order of each information described above is not limited to the order shown in FIG.
- the configuration of the related information can be slightly different depending on whether the recording medium is a read-only recording medium or a recordable recording medium.
- the media information UID shown in FIG. 3 is an example, and the number of items included in the media information UID, the content of the items, and the type of user-provided content data stored in the management server described later are arbitrary. Can be selected or selected.
- the location where the media information UID is recorded is any area where the media information UID can be reproduced but the media information UID cannot be rewritten.
- the recorded information is a read-only recording medium that has been recorded, data is recorded. At least one of the recorded recorded area (program area), the lead-in area, and the read area is, as will be described later, in a process after recording the original data, for example, a high-output laser beam or the like. Recorded.
- the information is recorded by a laser beam in a program memory area (PMA) provided on the inner peripheral side of the lead-in area.
- PMA program memory area
- the medium information U ID is read from the recording medium by referring to the address information recorded in the TOC information in principle.
- the read media information U ID is stored and transmitted to a service organization, in this example, a media information management server (Web site) via a communication network (such as the Internet) at a required timing.
- a service organization in this example, a media information management server (Web site) via a communication network (such as the Internet) at a required timing.
- a communication network such as the Internet
- the management server can grasp the contents of the transmitted medium information UID of the recording medium.For example, the user confirmation information in the medium information UID can be obtained. If it is the same as the winning number, service information prepared in advance, for example, service content data, is provided to the user via the communication network.
- the management server has a media information management database.
- Information about a password which is information for identification, is recorded. Then, for example, information on the password is stored as management information for each accessed recording medium.
- an information service system to which the present invention can be applied is configured as shown in FIG.
- at least one terminal device 20 receiving a service and a media information management server (Web site) 30 storing service content data and the like are connected via a communication network 40 such as the Internet.
- the media information UID read by the terminal device 20 is transmitted to the management server 30. If the transmitted media information UID can be correctly authenticated by the management server 30, the media information UID can be analyzed. Are stored in the management server 30.
- a service corresponding to the medium information U ID is provided to the terminal device.
- FIG. 4 only one terminal device 20 connected to the management server 30 via the communication network 40 is illustrated, but this is for the sake of simplicity. Terminal device 20 is connected.
- the terminal device 20 is provided with a disk reproducing unit (which may be a recording / reproducing unit) and a data transmitting / receiving unit.
- the terminal device 20 can read and reproduce data recorded in the main recording area from the optical discs 10 and 10a, which are recording media, and can read the medium information recorded on the optical discs 10 and 10a.
- the optical disk described below exemplifies an optical disk 10a (see FIG. 2) which is a read-only recording medium such as a CD-ROM or the like.
- FIG. 5 shows the configuration of the terminal device 20.
- the terminal device 20 has the medium information reproducing device 50 for reproducing the optical disk 10a.
- the terminal device 20 includes a storage unit for recording and storing various data, including a control unit 22 including a CPU for controlling the entire device, a storage unit 23 including a hard disk in this example, and A data transmission / reception unit (communication interface) 24 for transmitting and receiving data is connected to the bus 27. Further, a display unit 25 such as an LCD and an input unit 26 including a keyboard for inputting operation information are connected to each other via a path 27.
- the terminal device 20 transmits the medium information UID read from the optical disk 10a to the management server 30 including the reproduction process of the data including the medium information UID read from the optical disk 10a.
- the data is exchanged with the outside to obtain necessary information, and the received data is stored.
- the control unit 22 has a built-in memory (not shown) such as a ROM that stores processing programs necessary to execute these processes.
- FIG. 6 shows a schematic configuration of the management server 30.
- the management server 30 authenticates the media information UID transmitted from the user, and when the media information UID is correctly authenticated, transmits the specified service to the user terminal device 20 via the communication network 40. In addition to being configured so that it can be provided, it performs processing such as media management. Therefore, as shown in FIG. 6, the management server 30 includes a control unit 31 having a CPU for controlling the entire apparatus, a database unit 32 storing service content data, media information UID and key information unique to the optical disc. A management database section 33 is provided in which various types of management information are stored.
- control unit 31 has a built-in memory (not shown) such as a ROM that stores processing programs necessary to realize these processes.
- the control section 31, database section 32, management database section 33, display section 35, transmission / reception section 34 and input section 36 are connected to a bus 37.
- FIG. 5 is a block diagram showing a configuration of a main part of the medium information reproducing apparatus 50 according to the present invention.
- the figure shows an example of the reproducing apparatus 50 when the above-described medium information U ID is recorded in the program area 14a of the optical disk 10a.
- the spindle motor 54 is rotated, and the optical disc 10 a is driven to rotate so that the linear velocity becomes constant. .
- the recorded information recorded on the optical disc 10a is read out by the optical pickup unit 55.
- the reflected light from the optical disk 10a is transmitted to the optical pickup unit (head Part) 55
- the light is received by the photodetector provided in 5, and is converted into an electric signal by the photodetector.
- An output signal from the optical pickup unit 55 is supplied to a demodulator 57 via an RF amplifier 56, and information demodulation processing, that is, EFM demodulation is performed.
- the output data from the demodulator 57 subjected to the EFM demodulation is further supplied to a TOC information reading circuit (information extraction unit) 60, and the TOC information is extracted from the output data of the demodulator 57,
- the extracted TOC information is stored in a memory such as a RAM 63 via a control unit 61 for performing disk management and a bus 27.
- the TOC information output from the read circuit 60 is further supplied to an area detection unit 64 for the medium information UID, and address information indicating a position where the medium information UID included in the TOC information is recorded is detected.
- the medium information U ID can be separated from the output data of the decoder 59 as described later by the detected address information.
- the area detection unit 64 is used as a dedicated circuit to detect the address information indicating the position where the medium information UID is recorded from the TOC information. 6 It may be performed in step 1.
- the switching circuit 65 is switched and controlled based on the address information indicating the position where the detected medium information UID is recorded. And stored in the memory 63, which is a storage unit. Similarly, the data included in the output data from the decoder 59 separated by the switching circuit 65, that is, the data including the content as the original data read from the program area 14a of the optical disk 10a is output. Playback output to an output processing unit (not shown) such as an audio playback circuit via terminal 68 3 009189
- the data including the content output from the switch circuit 65 can be further stored in the memory 63 via the interface 67.
- a decryption process is performed to decrypt the code using the key information provided from the management server 30.
- the key information is the decryption key itself or information for generating a legitimate decryption key. Key information is provided according to the security of the information service system.
- the medium information UID stored or held in the memory 63 is read according to the input information from the input unit 26, and the read medium information UID is transmitted and received by the transmission / reception unit (transmission / reception interface) 24 (FIG. 5). ) Is transmitted to the management server 30 via.
- FIG. Fig. 8 is a schematic diagram (flowchart) illustrating the processing of the entire information service system.
- the terminal device 20 reproduces the optical disk 10a and reads the medium information U ID recorded on the optical disk 10a.
- the medium information U ID read from the optical disk 10a is stored in the memory 63.
- the user confirmation information of the medium information U ID is displayed on the display unit 25.
- the display of the user confirmation information may be performed at the same time when the medium information U ID is read from the optical disk 10a.
- the user accesses the management server 30 using the terminal device 20.
- the user transmits a password PW previously determined with the management server 30. If the user is correctly authenticated based on the transmitted password PW, menu information (service menu) handled by the management server 30 is transmitted from the management server 30 to the user, that is, the terminal device 20. Then, the terminal device 20 as the user displays the service menu on the display unit 25 based on the transmitted menu information.
- the terminal device 20 displays the service menu on the display unit 25 based on the transmitted menu information.
- the submenu selection information corresponding to the selected submenu is transmitted from the terminal device 20 to the management server. Sent to 30.
- the media information UID transmitted from the terminal device 20 is prayed, for example, an authentication process is performed.
- authentication processing is performed to determine whether the transmitted media information is legitimate media information.
- This authentication processing of the medium information UID is performed to exclude access from a recording medium that has been illegally copied.
- the transmitted media information UID is compared with the media management information to authenticate whether it is legitimate media information.
- the medium management information in this case is stored in the management database section 33, and is medium-specific management information (the same information as the medium information) provided by the disk manufacturer or the disk distributor.
- the user identification information in the medium identification information constituting the received medium information U ID is collated.
- the user confirmation information is compared with the information on the winning number stored in the management database section 33 of the management server 30.
- the content data A of the special service prepared in advance is transmitted to the terminal device 20 and the content data A is provided to the user.
- the content data B of the special service is further transmitted to the terminal device 20. And the content data B is provided to the user.
- the following data transfer is performed between the management server 30 and the terminal device 20 in addition to the processing in the medium identification information described above. For example, if there is a difference between the number of songs serviced by the prepaid fee and the number of recorded songs in a read-only recording medium in which a plurality of songs are recorded in advance by a plurality of pits, The information recorded on the optical disk 10a is encrypted. In this case, the user acquires key information from the management server 30 according to the prepaid fee. The key information obtained from the management server 30 is retained or stored in the memory 63, and the information read from the optical disk 10a is decrypted using the key information retained in the memory 63. . For example, when the information recorded on the optical disc 10a is music data, 3 009189
- the encrypted music data is decrypted and reproduced using the key information.
- the optical disc as a recording medium loaded in the terminal device 20 is a writable recording medium, that is, a recordable optical disc
- the data transmitted from the management server 30 is data to be recorded on the recording medium.
- an information recording / reproducing device (not shown) is provided in place of the information reproducing device 50 shown in FIG. 7, and the data transmitted from the management server 30 by the information recording / reproducing device is provided. That is, the downloaded data is recorded on an optical disk as a recording medium.
- data downloaded due to the security of the information service system is transmitted while being transmitted from the management server 30, it is encrypted and transmitted at the same time as the data is downloaded. Key information for decrypting the encrypted data.
- FIG. 9 shows the relationship between the user confirmation information and the information on the winning number.
- part of the medium identification information constituting the medium information U ID is used as the user confirmation information.
- the medium identification information is composed of a serial number of a plurality of digits, and in this embodiment, three bits from the LSB side are used as user confirmation information.
- This user confirmation information is service winning information and thus functions as specific identification information.
- the information on the winning number is “0 0 0”. Therefore, when the specific identification information of three bits from the LSB side is “0 0 0” (the first bit is LSB), it is the medium identification information that can enjoy the service, and the management server 30 0 is provided to the user.
- the special service content data A prepared in advance is provided.
- the user is provided with content data B of another special service. Therefore, when there is an access from the same user, the medium information, especially the medium identification information, is stored in the management database unit 33 for each user every time the access is made.
- the special service content data B is provided to the user when the access from the user is performed and the above-described five types of user confirmation information are collected. Is done.
- the content data of the special service provided to the user may be music data, data relating to a moving image or a still image, data relating to a profile of a specific artist, or a game software. Regardless of the type or genre of data provided or provided.
- the value and the number of digits of the information on the winning number are not fixed but may be changed. For example, by changing the information on the winning number for each specific period, such as weekly or monthly, it is possible to provide more users with special service content data.
- the management server 30 first receives the medium information UID read from the optical disk 10a and transmitted, and uses the management information stored in the management database 33 of the management server 30 to Performs authentication processing of the received media information UID. Specifically, whether or not the received media information UID is legitimate media information is stored in the information (medium identification information) relating to the serial number included in the media information UID and the management database 33. After performing authentication processing for collating with the management information, the user identification information (specific identification information) included in the medium identification information is extracted (step 71). The extracted specific identification information is stored or registered in the management database 33 (step 72).
- step 73 a check is performed to determine whether or not the specific identification information is the same as the information on the winning number currently registered in the management database section 33, that is, whether or not the information matches.
- the data MA for the winning message is sent together with the special service content data A in order to provide the user with free content data A. Do (step 74).
- the user confirms that the user identification information in the medium information UID recorded on the optical disc 10a owned by the user matches the information regarding the winning number, that is, the winning. Recognize that it is a number and special service content Data can be obtained.
- step 73 if it is determined in step 73 that the specific identification information is different from the information on the winning number, the data MX regarding the unsuccessful message indicating that the information has been "missed" is transmitted to the user (step 75). It is checked whether or not the user confirmation information stored in the management database 33 by the previous access, including the user confirmation information, satisfies the condition of the same stepping shown in FIG. 9 (step 76). if it is determined in step 76 that the conditions for the uniform treading shown in FIG. 9 are satisfied, the data MB relating to the winning message is transmitted to the terminal device 20 together with the content data B of the special service, and This service processing ends (step 77).
- the password / media information UID is retransmitted. Request, and perform the authentication process again. If the password / media information UID cannot be authenticated even after the authentication process again, a message (message data) indicating that the service process should be stopped is transmitted to the user and the service process is terminated. Good.
- the processing based on the related information in the medium information UID is performed in the processing before or after the processing in FIG.
- FIG. 11 is a flowchart showing the processing of the terminal device 20.
- the information reproducing apparatus 50 is set to the reproducing mode, and then the data which is the information recorded on the optical disk 10a is read out, and the medium information UID read from the optical disk 10a is stored in the memory 63. Save (steps 8 1 and 8 2).
- the specific identification information, which is the user confirmation information, of the medium information U ID stored in the memory 63 is displayed on the display unit 25 (step 83). By displaying the user confirmation information on the display unit 25, the user can confirm whether the user confirmation information read from the optical disc 10a matches the winning number or not.
- the control unit 22 accesses the management server 30 via the communication network 40, for example, the Internet. After checking the connection with the management server 30, the media information U JP2003 / 009189
- Fig. 12 shows an example of information reception processing.
- the information transmitted from the management server 30 is data relating to a message
- the data MA (and / or MB) relating to a winning message or the data MX relating to a failure message is transmitted.
- the type of data is determined, and a display based on the data regarding the determined message is performed (steps 91 and 92).
- the display of the corresponding service message data MA or MB is performed, and the content data of the special service is stored in the memory. 63 is written, the content data is saved, and the process ends (steps 93, 94).
- Special service content data may be played at the same time as it is received.
- FIG. 13 shows another embodiment of the medium information reproducing apparatus described above.
- FIG. 7 shows an example of the medium information reproducing apparatus for reproducing the optical disk 10a in which the medium information UID is recorded in the program area 14a.
- the lead-in area 12a is used.
- This is a medium information reproducing apparatus 50a for reproducing an optical disk 10a in which a medium information UID is recorded.
- the same parts as those shown in FIG. 7 are denoted by the same reference numerals, and detailed description thereof will be omitted.
- the output data demodulated by the EFM demodulator 57 is supplied to an error correction / decoding circuit 58, and the error correction / decoding circuit 58 outputs the error data.
- a decoding process is performed together with the correction process.
- the output data from the error correction and decoding circuit 58 is supplied to a CD-ROM decoder 59, and the decoded output data in the CD-ROM format is finally decoded and recorded on the optical disk 10a.
- the original data (original data) before being restored is returned.
- the output data from the CD-ROM decoder 59 is supplied from an output terminal 68 to an output processing unit (not shown) such as a sound reproducing circuit, and, if necessary, transmitted to a media via an interface 67. Stored in Mori 63.
- the output data demodulated by EFM by demodulator 57 is further sub-coded , And are decoded by the decoder 68. Since the medium information UID can be inserted into, for example, the user area (mode 7) of the subcode Q in the optical disk 10a, the output data obtained by decoding the supcode data Q is further extracted by the medium information UID extraction unit. 69 The medium information UID inserted into the mode 7 area, which is the user area of the subcode Q supplied to the subcode Q, is extracted and separated. The extracted and separated medium information UID is temporarily stored in the memory 63 via the interface 66.
- Part of the output data from the supcode decoder 68 is also supplied to the TOC information readout section 60, where TOC information is extracted and separated from the output data of the subcode decoder 68, and then the extracted TOC information is output. Information is supplied to the control unit 61.
- the medium information U.ID can be extracted from the data read from the optical disk 10a. Also, the user confirmation information that is a part of the extracted medium information U ID can be displayed on the display unit 25. Further, the data can be transmitted to the management server 30 using the transmission unit 24.
- the above-described medium information UID is additionally recorded on a read-only recording medium on which information and data are recorded in advance by a plurality of pits, that is, even on an optical disk 10a as shown in FIG. Can be.
- the medium information UID is recorded on the optical disk 10a on which information (data) is recorded in advance, for example, using a high-power laser beam.
- the media information UID is recorded in one of the lead-in area, lead-out area, and program area.
- Figure 14 shows an example of the recording method. This will be described with reference to the following.
- FIG. 14 shows an example of an optical disk creation system including a medium information recording device.
- the optical disc producing system includes a modulated signal transmitting device 140 that modulates information or data recorded on an optical disc 10a to be a final finished product to generate and transmit a modulated signal, an optical disc master 3 according to the modulated signal.
- Laser beam 'recorder 600 which is the master optical disk recording device for recording on the optical disk 20, and semi-finished optical disk 340, and a molding device 700 for molding the disk substrate, and semi-finished optical disk 340 It is composed of a recording device 200 that performs the following.
- the write-once device 200 is a device for recording the medium information U ID described above.
- the modulation signal transmitting device 140 includes a recording information reproducing unit 150 that reads and reproduces information or data to be recorded on an optical disk, and generates modulation information that converts the reproduced information or data into a modulation signal based on a predetermined modulation method.
- a modulation information storage section 170 stores a modulation signal and a modulation signal output section 180 outputs a modulation signal.
- the recording information reproducing unit 150 sequentially reproduces predetermined information data recorded on the master optical disk 310 over the entire area, performs error correction processing on the reproduced data, and then generates modulation information. Feed to part 160.
- the optical disk 310 serving as a master is a recordable optical disk such as a CD-R disk, for example, on which predetermined information or data to be recorded on the optical disk master 320 is recorded.
- the predetermined information or data is music data, video data, or arbitrary data such as a program.
- the modulation information generation section 160 converts the information or data reproduced by the reproduction section 150 into a modulation signal based on a predetermined modulation scheme, and converts the converted modulation signal into a modulation information storage section 17 Write to 0 and supply to modulation signal output section 180.
- the modulation signal is composed of a bit pattern of a predetermined modulation method (“1” or “0” specified as described above.)
- the medium information UID may be changed as necessary.
- the modulation information storage section 170 stores the modulation signal generated by the modulation information generation section 160.
- the modulation signal output section 1 80 inputs the modulation signal generated by the modulation information generation unit 160, and outputs a bit pattern of “1” or “0” by a laser beam at a predetermined clock. ⁇ Output to the recorder 600.
- the laser beam recorder 600 irradiates a laser beam modulated based on the modulation signal input from the modulation signal transmitting device 140 onto the optical disk master 320 to perform power setting, that is, the master 320. Record the data in The stamper 330 is manufactured by performing a plating process after exposing the optical disc master 320 to an exposure process.
- the molding device 700 forms a disk substrate having an uneven pattern on one surface by performing injection molding using a synthetic resin such as polycarbonate as a material using the stamper 330.
- a semi-finished optical disk 340 is produced by applying a reflective film made of a material such as A1 on one surface of the molded disk substrate, and further forming a protective film on the reflective film.
- the semi-finished optical disk 340 represents an optical disk in which data has been recorded in this way but media information U ID as additional recording information has not been recorded yet.
- the additional recording device 200 includes a modulation information storage unit 210 that stores the modulation signal supplied from the additional recording related information 410 or the modulation signal transmission device 140, and a additional recording control unit 2 that controls the additional recording operation.
- the optical disk 340 of the semi-finished product is configured by an additional recording unit 230 for additionally recording medium information UID as additional recording information on the optical disk 340 of the semi-finished product under the control of 20 and the additional recording control unit 220.
- the modulation information storage unit 210 stores the additional write-related information 410 used by the modulation signal transmission device 140 or the modulation signal supplied by the modulation signal transmission device 140.
- the additional recording control unit 220 calculates an area for recording the additional information 420 which is the medium information UID on the optical disk 340 based on the additional recording related information 410 or the modulation signal, and calculates the calculated area.
- the operation of additionally recording the additional information 420 stored in a memory (not shown) is controlled.
- the write-once unit 230 includes a not-shown write-once laser light source that outputs high-power laser light, and is stored in a semi-finished optical disk 340 and a memory (not shown) according to the control of the write-on control unit 220.
- the additional write information 420 which is the media information unique to the optical disc, is recorded by irradiating a high-power laser beam, and an optical disc 350 as a completed product on which the additional write information 420 is recorded is created.
- This optical disk 350 is the medium information U described above. Refers to an optical disk 10a as a recording medium on which 1D is recorded.
- Reference numeral 20 denotes an area for recording the additional recording information 420 on the optical disk 34 based on the additional recording-related information 410 or the modulation signal, and the additional recording information 4 2
- the additional writing unit 230 is controlled so that 0 is additionally recorded.
- the additional recording unit 230 additionally records the medium information UID as additional recording information 420 on a semi-finished optical disk 340 according to the control of the additional recording control unit 220, and creates a completed optical disk 350. Is done.
- As an additional recording information recording method when modulating information or data in a modulation signal transmitting apparatus, a modulation signal having an unmodulated section in an arbitrary section of the modulation signal is generated to produce a semi-finished optical disc, and the additional recording apparatus performs non-modulation. There is a method of recording additional information in a modulation section and manufacturing a finished optical disc as a finished product.
- FIG 14 shows an example.
- the modulation signal transmitting apparatus 140 obtains information for inserting a non-modulation section into the modulation signal by the EFM method (hereinafter, referred to as EFM data pattern) from the additional recording related information 410.
- EFM data pattern information for inserting a non-modulation section into the modulation signal by the EFM method
- the non-modulation section is inserted or how many non-modulation sections are inserted in the EFM data pattern is arbitrary and is not specified.
- the semi-finished optical disc 340 into which the non-modulation section has been inserted is irradiated with laser light to add additional information 4
- the interval at which the non-modulation section is inserted or the length of the non-modulation section is set so that the tracking servo of the laser beam can be performed when 20 is additionally recorded, that is, the continuous non-modulation section is equal to or less than the bandwidth of the tracker servo.
- This tracking servo method is not particularly limited.
- the sub-coding section is a non-modulation section.
- the non-modulation section can be provided in any part of the data section where the information or data is recorded, except for the synchronization pattern. Further, a plurality of non-modulation sections may be provided at certain fixed intervals or at random intervals.
- the modulation information generation unit 160 generates a modulation signal (hereinafter referred to as an EFM signal) in which a non-modulation section is provided in a part of the EFM data pattern according to the additional writing related information 410.
- EFM signal a modulation signal
- Laser beam The signal level of the sub-coding section of the EFM signal output to the decoder 600, that is, the waveform of the EFM signal recorded on the optical disk master 320 is zero. As a result, there are no pits in the subcoding section, which is the non-modulation section of the prepared semi-finished optical disc 340.
- the additional recording device 200 acquires the additional recording related information 410 and stores it in the modulation information storage unit 210.
- the write-once control unit 220 applies EFM modulation to the write-once information 420, and emits a high-power laser beam so that the EFM-modulated write-once information is additionally recorded in a section corresponding to a subcoding section.
- a pit is formed in the sub-coding section by controlling the additional recording laser light source of the additional recording section 230.
- the pits indicated by hatching in FIG. 15 are pits formed based on the additional information 420.
- the optical disc 350 as a finished product on which additional recording has been performed by the write-once device 200 is the same as the modulation method applied to the information recorded in the program area of the disc 350 in the section corresponding to the sub-coding section.
- a modulation signal of additional information 420 modulated by the modulation method is recorded.
- the write-once information modulated by the same modulation method as used when modulating the information or data recorded on the optical disk is written. Record.
- the media information as the additional information together with the information or data including the content recorded on the optical disc must be reproduced by a player compatible with the conventional EFM modulation method. Can be. In this way, the medium information can be reproduced without the need to provide a special circuit for reading and reproducing the medium information as information unique to the optical disk in the reproducing device.
- a modulation signal transmitting device As a method of recording additional information such as medium information on a recorded recording medium, in addition to the above-described example, a modulation signal transmitting device generates an EFM signal in which information or data is modulated to produce a semi-finished product.
- the optical disk is manufactured, and the EF IV generated by the modulation signal transmission device in the write-once device [Refer to the data pattern to record the write-once information in an arbitrary section, for example, the section in which a specific data pattern is formed
- a method of manufacturing an optical disk as an example is conceivable, a detailed description thereof will be omitted.
- the present invention relates to a recordable or read-only recording medium such as a CD-R or a CD-ROM, a terminal device for reading information from the recording medium, and a medium identification information including user confirmation information in the recording medium.
- the present invention can be applied to an information service system that realizes a recording method for recording the information, a server device for providing service information to the terminal device, and an information transmission method between the terminal device and the server device.
Abstract
Description
Claims
Priority Applications (2)
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EP03741506A EP1528475A4 (en) | 2002-07-31 | 2003-07-18 | RECORDING MEDIA, INFORMATION TRANSMISSION PROCEDURE, END UNIT, SERVER AND RECORDING METHOD |
US10/490,210 US7426751B2 (en) | 2002-07-31 | 2003-07-18 | Recording medium, information transmission method, terminal, server, and recording method |
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JP2002223486A JP4050951B2 (ja) | 2002-07-31 | 2002-07-31 | 媒体情報再生方法、媒体情報再生装置および情報サービスシステム |
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CN (2) | CN1564983A (ja) |
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US8306918B2 (en) * | 2005-10-11 | 2012-11-06 | Apple Inc. | Use of media storage structure with multiple pieces of content in a content-distribution system |
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- 2003-07-18 KR KR1020047004730A patent/KR20050026907A/ko not_active Application Discontinuation
- 2003-07-18 CN CNA038012111A patent/CN1564983A/zh active Pending
- 2003-07-18 EP EP03741506A patent/EP1528475A4/en not_active Ceased
- 2003-07-18 CN CNA2006101641836A patent/CN1983426A/zh active Pending
- 2003-07-18 WO PCT/JP2003/009189 patent/WO2004013757A1/ja active Application Filing
- 2003-07-18 US US10/490,210 patent/US7426751B2/en not_active Expired - Fee Related
- 2003-07-21 TW TW092119834A patent/TWI246068B/zh not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
---|---|
TWI246068B (en) | 2005-12-21 |
JP4050951B2 (ja) | 2008-02-20 |
US20040243831A1 (en) | 2004-12-02 |
CN1564983A (zh) | 2005-01-12 |
US7426751B2 (en) | 2008-09-16 |
JP2004062778A (ja) | 2004-02-26 |
EP1528475A4 (en) | 2007-09-12 |
KR20050026907A (ko) | 2005-03-16 |
CN1983426A (zh) | 2007-06-20 |
EP1528475A1 (en) | 2005-05-04 |
TW200412584A (en) | 2004-07-16 |
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