WO2000002171A1 - Dispositif de gestion du droit d'auteur, dispositif de vente de produits electroniques, dispositif d'affichage de livres electroniques, dispositif de gestion d'informations codees, et systeme de gestion de la distribution de produits electroniques, dans lequel ces dispositifs sont relies par des lignes de communication - Google Patents
Dispositif de gestion du droit d'auteur, dispositif de vente de produits electroniques, dispositif d'affichage de livres electroniques, dispositif de gestion d'informations codees, et systeme de gestion de la distribution de produits electroniques, dans lequel ces dispositifs sont relies par des lignes de communication Download PDFInfo
- Publication number
- WO2000002171A1 WO2000002171A1 PCT/JP1999/003513 JP9903513W WO0002171A1 WO 2000002171 A1 WO2000002171 A1 WO 2000002171A1 JP 9903513 W JP9903513 W JP 9903513W WO 0002171 A1 WO0002171 A1 WO 0002171A1
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- WO
- WIPO (PCT)
- Prior art keywords
- information
- content
- unit
- data
- electronic book
- Prior art date
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
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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
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0641—Shopping interfaces
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/16—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for devices exhibiting advertisements, announcements, pictures or the like
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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
Definitions
- the present invention relates to the management of the distribution of digitized works such as e-books and the technology of displaying the works, and in particular, to a copyright management device that manages a copyright fee associated with the sale of e-books, An electronic work selling device that provides encoded electronic book contents, an electronic book display device that decodes and displays encoded electronic book contents, and is required when decoding electronic book contents
- the present invention relates to a key information management device that manages key information for each user and an electronic copyrighted work distribution management system in which these are connected via a communication line.
- the software vending system disclosed in Japanese Unexamined Patent Publication No. 5-89360 is a ROM (Read Only Memory) storing a card ID (Identification) number and a user ID number, and a read / write.
- ROM Read Only Memory
- Possible The IC (Integrated Circuit) memory card including RAM (Random Access Memory), a vending machine with a built-in telephone tongue line and a storage device storing multiple software, and a telephone line connected
- an approval center that gives the approval number of the right, the purchaser selects the software to be purchased and obtains the approval number from the approval center via the telephone line, and the vending machine integrates the software in the storage device with the IC.
- the memory is stored in the RA of the memory.
- the centralization of the software sales volume by the approval center allows the copyright owner to keep track of the number of software sales.
- the approval center and the vending machine are connected via a telephone line, there is a problem in security management. In other words, there is a possibility that sales information etc. leaks from vending machines connected to the telephone line due to unauthorized access.
- a forced ID number and a user ID number are stored in an IC memory card.
- the purchased information remains, which may cause problems from the viewpoint of privacy protection.
- the purchaser needs to purchase the software with a specific card in which the user ID number and the like are registered, there is a problem that the purchaser's anonymity is impaired and the purchase will is impaired.
- the vending machine installer may use the vending machine to illegally sell copyrighted works such as software or alter the sales volume. It is also possible. As a result, there may be a problem that legitimate copyright fees are not paid to authors.
- This problem is alleviated to some extent by shortening the time for writing data to the recording media and increasing the communication speed of the data communication used in the approval procedure.
- a recording medium such as an electronic work, for example, book data
- vending machines dedicated to the sale of copyrighted works are expensive and require a large installation space, so it is desirable that as many vending machines as possible can handle many users.
- Japanese Patent Application Laid-Open No. 62-277855 discloses Japanese Patent Application Laid-Open No. 62-277855.
- the image processing device disclosed in Japanese Patent Laid-Open No. 62-2777785 changes image processing methods such as enlargement, reduction or gradation conversion according to the type of image in each area of the image. Is what you do.
- the user when image data is processed by this image processing apparatus, the user must specify an area and select image processing, which makes the operation very complicated. In order to automate these processes, it is necessary to recognize the image type of each area of the image.
- this processing amount is considerably large, there is no problem that image processing takes time in a mobile terminal device or the like having a low processing speed.
- the billing information processing device disclosed in Japanese Patent Laid-Open No. 5-122710 discloses a series of encrypted information groups or information transmitted in space or via a predetermined transmission path.
- a personal computer that demodulates the information group by a program or data on a magneto-optical disk.
- the personal computer reproduces a program or data necessary for demodulating a series of information groups from the magneto-optical disk, and demodulates a series of information groups using the reproduced programs or data. This makes it possible for only a specific user to use a series of information sent to multiple users.
- a distributor of this series of information for example, a distributor of software creates and sells a magneto-optical disk, it can charge the software by adding a usage fee for the software.
- charging can be performed only for each medium (magneto-optical disk), there is a problem in that it is not possible to store a plurality of software on the medium and perform charging for each software.
- the present invention has been made to solve the above problems, and a first object of the present invention is to provide an electronic copyrighted work selling device capable of externally managing a copyright fee.
- a second object is to provide an electronic copyrighted work selling device capable of preventing sales information from being read or deleted improperly.
- a third object is to provide a copyright management device capable of managing copyright fees for each author.
- a fourth object is to provide an electronic work logistics distribution management system that can manage the copyright fee of electronic work sold by an electronic work sales device and can prevent unauthorized sale of electronic work. To provide.
- a fifth object is to provide an electronic work selling device that sells electronic book contents that can be reproduced only by a specific electronic book display device.
- the sixth purpose is to change the encoded content that can be played back according to the billing status, etc. It is an object of the present invention to provide an electronic book display device capable of:
- a seventh object is to provide a key information management device that generates and transmits auxiliary information necessary for reproducing content in response to a request.
- An eighth object is to provide an electronic work distribution management system in which a user can purchase and display an electronic book that can be reproduced only on a specific electronic book display device. Disclosure of the invention
- an electronic copyrighted work selling device includes: an operation unit for selecting a desired electronic copyrighted work; a copyright fee information storage unit for storing copyright fee information of the electronic copyrighted work; Copyright fee calculation for calculating the copyright fee of the digital work selected by the operation unit based on the copyright fee information stored in the copyright fee information storage unit Section, a communication section for transmitting the copyright fee calculated by the copyright fee calculation section to the outside, and an electronic work selected by the operation section from the digital work data stored in the work data storage section.
- a copyrighted work data writing unit for writing digital copyrighted work data corresponding to the work to a recording medium.
- the communication unit transmits the copyright fee calculated by the copyright fee calculation unit to the outside, so that the copyright fee can be managed externally.
- the digital work selling device further includes a sales information recording unit that records a sales situation in the digital work selling device.
- the sales information recording unit for recording the sales status of the electronic copyrighted work selling device Since the sales information recording unit for recording the sales status of the electronic copyrighted work selling device is included, it is possible to grasp the sales status of the electronic copyrighted work selling device by reading the information recorded in the sales information recording unit. .
- the electronic work selling device further includes an identification information storage unit for storing identification information of the electronic work sales device, and a sales information reading card corresponding to the identification information stored in the identification information storage unit. And a sales information control unit that reads out the sales situation recorded in the sales information recording unit.
- the sales information control unit detects that the sales information readout card corresponding to the identification information stored in the identification information storage unit has been attached, and detects the sales recorded in the sales information recording unit. Since the status is read, it is possible to prevent the information recorded in the sales information recording unit from being read illegally.
- the sales information control unit reads and executes a part of the program corresponding to the identification information stored in the identification information storage unit and the remaining part of the program stored in the sales information read card. Read the sales status recorded in the sales information recording section.
- the sales information control unit reads and executes a part of the program corresponding to the identification information stored in the identification information storage unit and the remaining part of the program stored in the sales information reading card, so that the sales information It is possible to more effectively prevent the information recorded in the recording unit from being illegally read.
- the electronic work selling device further includes an identification information storage unit for storing identification information of the electronic work sales device, and a sales information management card corresponding to the identification information stored in the identification information storage unit. And a sales information control unit that reads out the sales situation recorded in the sales information recording unit and then deletes it.
- the sales information control unit detects that the sales information management card corresponding to the identification information stored in the identification information storage unit has been inserted, and reads out the sales status recorded in the sales information recording unit and then deletes it. In addition, it is possible to prevent information recorded in the sales information recording unit from being illegally deleted.
- the sales information control unit reads out and executes a part of the program corresponding to the identification information stored in the identification information storage unit and the remaining part of the program stored in the sales information management card, After reading the sales status recorded in the sales information recording section, delete it.
- the sales information control unit reads and executes a part of the program corresponding to the identification information stored in the identification information storage unit and the remaining part of the program stored in the sales information reading card, so that the sales information It is possible to more effectively prevent the information recorded in the recording unit from being illegally deleted.
- the electronic copyrighted work selling device further includes a recording media storage unit that stores a plurality of recording media, and the copyrighted data writing unit sequentially writes the electronic copyrighted data to the plurality of recording media stored in the recording media storage unit.
- the copyrighted work data writing unit sequentially writes the digital copyrighted work data to a plurality of recording media stored in the recording media storage unit, even if the digital copyrighted work data is written to the recording media, the data is written in parallel. It will be possible for other buyers to proceed with the purchase.
- a copyright management device includes: a communication unit that receives copyright charge data of a sold digital work from outside; and a copyright storage device that stores copyright information of the sold digital work.
- a copyright information storage unit includes: a copyright fee data storage unit for storing copyright fee data received by the communication unit for each author based on the copyright information stored in the copyright information storage unit.
- the copyright fee data storage unit manages the copyright fee because the copyright fee data received by the communication unit is stored for each author based on the copyright information stored in the copyright information storage unit. It becomes possible.
- the copyright management device further transmits the copyright fee data recorded in the copyright fee data recording unit to the communication unit when the copyright fee data recorded in the copyright fee data recording unit is approved. Is transmitted to the outside.
- the copyright fee data approval processing unit when the copyright fee data recorded in the copyright fee data recording unit is approved, sends the copyright recorded in the copyright fee data recording unit to the communication unit. Since the royalty data is transmitted to the outside, it is possible to prevent the copyright fee data from being transmitted to the outside without the approval of the author.
- an electronic copyrighted work distribution management system includes an electronic copyrighted work selling device that sells an electronic copyrighted work, and a copyrighted electronic work sold by the electronic copyrighted work selling device.
- the product selling device includes an operation unit for selecting a desired digital work, a copyright fee information storage unit for storing copyright fee information of the digital work, and a copyright data storage unit for storing digital work data.
- the copyright fee calculator calculates the copyright fee of the digital work selected by the operation unit based on the copyright fee information stored in the copyright fee information storage unit.
- Copyright fee sent to the copyright management device The first communication unit, copyrighted data storage digital work stored in the unit data to A copyright data writing unit for writing digital work data corresponding to the digital work selected by the operation unit from the operation unit to the recording medium; A second communication unit for receiving copyright fee data from the copyrighted work selling device, a copyright information storage unit for storing copyright information of the electronic work to be sold, and a copyright stored in the copyright information storage unit A copyright fee data storage unit for storing, for each author, copyright fee data received by the second communication unit based on the information; and a copyright recorded in the copyright fee data recording unit from the author terminal.
- a copyright fee data approval processing unit that causes the second communication unit to transmit the copyright fee data recorded in the copyright fee data recording unit to the selling terminal when the fee data is approved.
- an electronic copyrighted work selling device associates a communication unit for performing data communication with the outside, a user interface for a user to select a desired content, and a content of an electronic book and a content identifier.
- a storage unit for storing and storing the content, a communication port for inputting a user identifier, and a content identifier corresponding to the content selected by the user interface are extracted from the storage unit, and the content identifier and the user identifier input by the input port are communicated.
- a processing unit for outputting auxiliary information for displaying the content received by the communication unit and displaying the content of the electronic book selected by the user interface as a pair.
- the processing unit outputs the auxiliary information received by the communication unit and the contents of the electronic book selected by the user interface in pairs, so that it is possible to provide the content that can be reproduced only by a specific user. Become.
- the electronic copyrighted work selling device further includes a charging unit for charging the user, and the processing unit changes the content identifier transmitted by the communication unit according to the charging status by the charging unit.
- the processing unit changes the content identifier transmitted by the communication unit according to the charging status by the charging processing unit, so that the content that can be reproduced can be changed according to the charging status.
- the key information management device includes: a communication unit that performs data communication with the outside; and a first unit that stores a content identifier and a content key corresponding to the content of the electronic book in a corresponding manner.
- a second table storing the user identifier and the user key in association with each other, and referring to the first table and the second table, based on the content identifier and the user identifier received by the communication unit.
- a processing unit for extracting the content key and the user key, generating auxiliary information for displaying the content from the extracted content key and the user key, and transmitting the auxiliary information to the communication unit.
- the processing unit generates auxiliary information for displaying the content from the extracted content key and user key, and transmits the generated information to the communication unit, so that the auxiliary information is provided so that only a specific user can use the content key. It becomes possible.
- an electronic book display device includes: an input unit for inputting auxiliary information for displaying content and encoded content of the electronic book; and auxiliary information input by the input unit. And a processing unit that generates a content key from the user key stored in advance and reproduces the encoded content input by the input unit using the content key, and a display that displays the content reproduced by the processing unit. Department.
- the processing unit generates a content key from the auxiliary information input by the input unit and the user key stored in advance, and reproduces the encoded content input by the input unit using the content key. Only the electronic book display device can reproduce the encoded content.
- the encoded content includes a plurality of modules including at least one of the data and the processing program, and the processing unit sequentially executes the plurality of modules to reproduce the content of the electronic book.
- the processing unit executes the module as appropriate.
- the contents of the electronic book can be reproduced.
- the plurality of modules include a module in which display attribute information is described, and the processing unit extracts the display attribute from the module in which the display attribute is described, and selectively executes the plurality of modules based on the display attribute. I do.
- the processing unit selectively executes a plurality of modules based on the display attributes, it is possible to reproduce only the image data that matches the display attributes.
- the plurality of modules include a module in which information indicating the type of the content key is described, and the processing unit extracts information indicating the type of the content key from the module in which the information indicating the type of the content key is described. Then, it is determined whether or not to execute the module based on the information.
- the processing unit determines whether or not to execute the module based on the information indicating the type of the content key, it is possible to change the encoded content that can be reproduced according to the charging status and the like.
- the electronic book display device further includes a recording medium on which auxiliary information for displaying content and encoded content of the electronic book are recorded, and the input unit encodes the auxiliary information and the electronic book recorded on the recording medium. Read content.
- the input unit reads the auxiliary information and the encoded content of the electronic book recorded on the recording medium, it is possible to provide the user with the content of the electronic book by using the recording medium.
- the recording medium has auxiliary information recorded in a non-readable area.
- auxiliary information is recorded in the non-readable area of the recording medium, it is possible to prevent the general-purpose reader from reading the auxiliary information.
- an electronic work distribution management system manages an electronic work sales apparatus that sells an electronic book and key information of an electronic book that is sold by the electronic work sales apparatus.
- An electronic work distribution management system including a key information management device and an electronic book display device for reproducing and displaying an electronic book sold by the electronic work sales device.
- a first communication unit for performing data communication with the device, a user interface for selecting a desired content by the user, a storage unit for storing the content of the electronic book and the content identifier in association with each other;
- a communication port for inputting a user identifier and a content identifier corresponding to the content selected by the user interface are extracted from the storage unit, and the content identifier and the user identifier input via the communication port are extracted by the first communication unit.
- a first processing unit for outputting the auxiliary information for displaying the content received by the first communication unit and the content of the electronic book selected by the user interface in a pair.
- the key information management device includes a second communication unit that performs data communication with the digital work selling device, a first table that stores a content identifier and a content key corresponding to the content of the electronic book in a corresponding manner, A second table for storing the user identifier and the user key in association with each other; a first table (501) and a second table.
- the content key and the user key are extracted based on the content identifier and the user identifier received by the second communication unit, and auxiliary information for displaying the content from the extracted content key and the user key.
- a second processing unit for generating and transmitting the generated information to the second communication unit
- the electronic book display device has an input unit for inputting auxiliary information for displaying the content and encoded content of the electronic book,
- a third processing unit that generates a content key from the auxiliary information input by the unit and the user key stored in advance, and reproduces the encoded content input by the input unit using the content key; and
- a display unit for displaying the content reproduced by the unit.
- the electronic book display device inputs the auxiliary information and the encoded content output from the electronic copyrighted work selling device, generates a content key from the auxiliary information and a previously stored user key, and uses the content key to encode the encoded content. Therefore, the encoded content can be reproduced only by a specific electronic book display device.
- the electronic copyrighted work selling device includes a processing unit that generates auxiliary information based on the electronic book data and the input user identifier and adds the auxiliary information to the electronic book data.
- the processing unit generates auxiliary information based on the electronic book data and the input user identifier and adds the auxiliary information to the electronic book data, so that it is possible to provide content that can be reproduced only by a specific user.
- the processing unit is based on information described in a header of the electronic book data.
- a first processing unit for calculating the expiration date and adding the electronic book data to the electronic book data a second processing unit for encrypting the contents of the electronic book data and adding the electronic book data to the electronic book data, and a hash function.
- the hash value is calculated from the header added by the first processing unit and the content added by the second processing unit, the hash value is encrypted with the user identifier, and the hash value is electronically generated as auxiliary information.
- a third processing unit added to the book data.
- the third processing unit calculates a hash value from the header added by the first processing unit and the content added by the second processing unit by using a hash function, and calculates a hash value using the user identifier. Since the value is encrypted and added to the electronic book data as auxiliary information, it is possible to prevent the illegally copied content from being displayed by the electronic book display device.
- the electronic book display device generates auxiliary information based on the electronic book data and the user identifier, and compares the generated auxiliary information with the auxiliary information added to the electronic book data.
- the reproduction processing unit determines the content reproduction processing method based on the comparison result by the first processing unit and reproduces the content, so that only a specific user can reproduce and display the content.
- the electronic book display device further compares the expiration date information described in the header of the electronic book data with the current time, determines whether or not to display the content, and instructs the reproduction processing unit. Processing section.
- the second processing unit compares the expiration date information described in the header of the electronic book data with the current time, determines whether or not to display the content, and instructs the playback processing unit to perform the content processing. It becomes possible to set an expiration date from the time of purchase.
- the electronic book display device further determines whether or not to decrypt the encrypted content of the electronic book data with the user identifier based on the comparison result by the first processing unit, and processes the third processing unit. including.
- the third processing unit encrypts the electronic book data based on the comparison result obtained by the first processing unit. Since it is determined whether or not the decrypted content is to be decrypted by the user identifier and processed, it is possible to prevent the illegally copied content from being reproduced and displayed.
- the electronic book display device further includes a user identifier registration unit for registering an automatically generated user identifier or a user identifier input by a user.
- the user identifier registration unit registers an automatically generated user identifier or a user identifier entered by the user, eliminating the need for publishers and key management centers to manage user identifiers, and to simplify the procedure. Becomes possible. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a diagram illustrating a schematic configuration of a digital work distribution management system according to a first embodiment of the present invention.
- FIG. 2 is a flowchart for explaining a processing procedure in the digital work distribution management system according to the first embodiment of the present invention.
- 3A to 3C are diagrams for explaining the data structure of an electronic book.
- FIG. 4 is a diagram showing a schematic configuration of a digital work distribution management system according to the second embodiment of the present invention.
- FIG. 5 is a diagram illustrating a schematic configuration of a digital work distribution management system according to the third embodiment of the present invention.
- FIG. 6 is a diagram for explaining the concept of the digital work distribution management system according to the fourth embodiment of the present invention.
- FIG. 7 is a block diagram showing a schematic configuration of the bender machine 103. As shown in FIG.
- FIG. 8 is a block diagram showing a schematic configuration of view # 101.
- FIG. 9 is a block diagram showing a schematic configuration of the key management center 110.
- FIG. 10 is a diagram showing communication contents such as key information between the view 101, the Sprintr 103, the publisher 108, and the key management center 110.
- FIG. 11 is a diagram illustrating an example of a bit string generated by the operation module 503.
- FIG. 12 is a diagram showing an example of the content charging information table 1221.
- FIG. 13 is a diagram for explaining a processing procedure in which the view # 101 interprets the encoded content, and reproduces and displays the encoded content.
- FIGS. 14A to 14D are diagrams showing display attributes of view # 101.
- FIG. 15 is a diagram showing display attributes corresponding to the display form of view 101 shown in FIGS. 14A to 14D.
- FIG. 16 is a diagram for explaining a coordinate system on the display screen of view # 101.
- FIG. 17 is a diagram (part 1) illustrating an example of encoded content.
- FIG. 18 is a diagram (part 2) illustrating an example of encoded content.
- FIG. 19 is a diagram showing an example of the processing table.
- FIG. 20 is a diagram for explaining the processing procedure of the PUTIMAGE processing module.
- FIG. 21 is a diagram for explaining the outline of the processing of the view 101 when a bit string exists in the non-readable area of the medium 102.
- FIGS. 22A and 22B are diagrams for explaining the non-readable area provided in the medium 102.
- FIG. 22A and 22B are diagrams for explaining the non-readable area provided in the medium 102.
- FIG. 23 is a block diagram illustrating a schematic configuration of a digital copyrighted work distribution management system according to the fifth embodiment of the present invention.
- FIG. 24 is a diagram for explaining a processing procedure for registering a user ID in view 820 of the fifth embodiment of the present invention.
- an electronic book selling system is an electronic book selling apparatus in which a purchaser 3 performs a purchase procedure of an electronic book and writes electronic book data to be purchased on a recording medium 2.
- a sales terminal 1, a copyright management device (hereinafter referred to as a copyright management center) 4 for managing a copyright fee for electronic book data sold by the sales terminal 1, and 4, It includes a seller terminal 5 used by the e-book distributor 6 and an author terminal 7 used by the e-book author 8. Sales terminal 1, Author The copyright management center 4, the distributor terminal 5, and the author terminal 7 are connected via a communication line 28, respectively.
- the sales terminal 1 has a display unit 9 for displaying book information necessary for the purchaser 3 to select an electronic book to be purchased and an operation method of the sales terminal 1, and a procedure for purchasing the electronic book.
- An operation unit 12 to be performed a book data writing unit 13 for writing the selected electronic book data to the recording media 2 inserted through the media insertion slot 10, and an electronic device corresponding to a plurality of books Book data storage unit 14 where book data is recorded, sales terminal control unit 15 that performs overall control of sales terminals 1, and sales terminals 1 assigned to sales terminals 1 installed in various locations
- Terminal ID storage unit 16 that stores ID numbers for sales
- sales information recording unit 17 that records information on the sales status of e-books at sales terminal 1, and copyright fees for e-books sold.
- Copyright fee information storage unit 20 for storing information, and copyright fee Information is transmitted and received through a copyright fee calculating unit 19 that calculates the copyright fee of an electronic book sold based on the information stored in the information storage unit 20 and a communication line 28 such as a telephone line.
- Sales terminal communication section 18 is included. Note that the sales terminal communication unit 18 may transmit and receive information wirelessly instead of by wire.
- the purchaser 3 inserts the recording medium 2 from the media insertion slot 10 and operates the operation unit 12 in accordance with the content displayed on the display unit 9, so that the desired book is stored in the recording medium 2. Data is written. Then, the recording medium 2 on which the electronic book data has been written is taken out from the media take-out port 11.
- the media inlet 10 and the media outlet 11 are provided separately, they may have a common structure.
- the book data storage section 14, sales terminal ID storage section 16, sales information storage section 17, and copyright information storage section 20 are electrically readable and writable. It is composed of a non-volatile memory capable of retaining information regardless of the situation, a memory backed up by a battery, a recording medium recorded using magnetism, and the like.
- the sales terminal control unit 15 includes a CPU (Central Processing Unit), a ROM (Read Only Memory) in which an execution program is recorded, and a work area.
- the sales terminal 1 is controlled when the CPU executes a program stored in the RAM or RAM, for example, by using a RAM (Random Access Memory) used for such purposes.
- a RAM Random Access Memory
- the copyright fee calculation unit 19 extracts copyright fee information corresponding to the electronic book selected by the purchaser from the copyright information stored in the copyright fee information storage unit 20 and outputs the extracted copyright fee information. Calculate the copyright fee.
- the CPU in the selling terminal control unit 15 may calculate the copyright fee.
- the copyright management center 4 includes a management center control unit 21 that performs overall control of the copyright management center 4 and a vendor information storage that manages information about a vendor of an electronic book sold by the sales terminal 1.
- Section 22 a sales terminal information storage section 23 that manages the sales terminal ID of each sales terminal installed in each location and information about the sales terminal corresponding to each sales terminal ID, and a communication line such as a telephone line.
- Management center communication unit 24 that sends and receives data, a copyright information storage unit 25 that stores information related to the copyright of the e-book sold by the sales terminal 1, and sales by the sales terminal 1.
- a copyright fee data recording unit 26 that stores copyright fee data related to electronic books, and copyright information is compiled based on the approval procedure performed by the author 8 via the author terminal 7, and sent to the distributor terminal 5.
- the management center communication unit 24 may transmit and receive information wirelessly instead of by wire.
- the selling terminal 5 is a communication terminal capable of performing data communication with the selling terminal 1 and the copyright management center 4.
- the author terminal 7 is a communication terminal capable of data communication with the copyright management center 4.
- the seller terminal 5 and the author terminal 7 can be realized by a device such as a personal computer capable of performing data communication via a communication line.
- Information on the seller terminal 5 and the writer terminal 7 is managed by the copyright management center 4, and the seller or author needs the information from the copyright management center 4 via the seller terminal 5 or the writer terminal 7. Information can be obtained.
- the distributor terminal 5 and the author terminal 7 are configured as separate devices, respectively, but the distributor 6 has the copyright of the digital work owned by the author 8.
- the selling terminal 5 and the creator terminal 7 can be constituted by the same terminal.
- the selling terminal 5 and the author terminal 7 are registered in the copyright management center 4 as the same terminal.
- FIG. 1 a configuration in which one distributor 6 uses one distributor terminal 5 is shown, but a plurality of distributors 6 use one distributor terminal 5 to manage digital works. It is also possible.
- the buyer 3 selects an electronic book to purchase using the operation unit 12 according to the display content of the display unit 9 of the sales terminal 1 (S 1). Then, the purchaser 3 inserts the recording medium 2 for recording the electronic book into the media insertion slot 10 (S2).
- the sales terminal control unit 15 causes the copyright fee calculation unit 19 to calculate the copyright fee.
- the copyright fee calculation unit 19 refers to the copyright fee information stored in the copyright fee information storage unit 20 and calculates the copyright fee of the electronic book selected by the buyer 3 (S 3 ).
- the sales terminal control unit 15 stores in the sales information recording unit 17 information indicating the start of transmission of the copyright fee data calculated by the copyright fee calculation unit 19 from the sales terminal 1 to the copyright management center 4. Record (S4). Then, the sales terminal control unit 15 transmits the copyright fee data to the copyright management center 4 via the communication line 28 by the sales terminal communication unit 18 (S5).
- the management center control unit 21 of the copyright management center 4 receives the copyright fee data via the communication line 28 and the management center communication unit 24, and manages and records the copyright fee for each author.
- the copyright fee data is recorded in the copyright fee data recording section 26 (S6).
- the management center control unit 24 transmits the completion of the registration of the copyright fee to the sales terminal 1 via the management center communication unit 24 and the communication line 28 (S7 sales terminal control unit 15).
- the information indicating that the copyright fee data has been registered in the copyright management center 4 is received.
- the information is recorded in the sales information recording section 17 (S8).
- the sales terminal controller 15 records the electronic book data selected by the buyer 3.
- the information indicating the start of writing to 2 is recorded in the sales information recording unit 17 (S 9), and the writing of electronic book data to the recording medium 2 is started by the book data writing unit 13 (S 10). .
- the sales terminal control unit 15 confirms that the writing of the electronic book data selected by the purchaser 3 to the recording medium 2 has been completed, and if the writing has been normally completed, sells information indicating the end of the writing. Recorded in the information recording section 17. In addition, when the writing is not completed normally, the sales terminal control unit 15 records the write error information in the sales information recording unit 17 (S11). When confirming that the writing of the electronic book data has been normally completed, the sales terminal control unit 15 discharges the recording medium 2 from the medium outlet 11 (S12).
- the sales information recording unit 1 Only the information indicating the start of writing is recorded in 7, and it is possible to confirm that the sale of the electronic book data has not been completed normally.
- the copyright fee calculating unit 19 calculates each copyright based on the information stored in the copyright fee information storage unit 20.
- a copyright fee for the author may be calculated.
- the copyright management center 4 receives the copyright fee for each author via the communication line 28 and the management center communication unit 24, and based on the copyright information stored in the copyright information storage unit 25, The copyright fee corresponding to the author can be recorded in the copyright fee data recording section 26.
- the author 8 refers to the copyright fee data recorded in the copyright fee data recording section 26 of the copyright management center 4 by the author terminal 7 and checks the copyright fee data. Approval.
- the copyright charge data approval processing unit 27 transmits the copyright charge data to the selling terminal 5 via the management center communication unit 24 when the approval is obtained from the author 8.
- FIG. 3A shows the data structure of a book written by one author, and shows the structure of electronic book data corresponding to one book.
- This data structure is composed of "Book 1-1 D” indicating the ID of Book 1, "Bibliographic information 1” indicating bibliographic information associated with the book such as the title, price, author or publisher of the book, and "Book 1".
- “Copyright information A 1” which indicates copyright information about book 1 of author A
- Book data A 1 corresponding to the text.
- FIG. 3B shows a data structure of a book authored by a plurality of authors, and shows a structure of electronic book data corresponding to one book.
- This data structure is composed of “Book 2—ID” indicating the ID of Book 2, “Bibliographic information 2” indicating the bibliographic information of Book 2, “Author A—ID” indicating the ID of Author A, and “Copyright fee information A 2” indicating the copyright fee for Author A, “Book data A 2” corresponding to the text written by Author A, and “Author B— ID indicating the ID of Author B "And” Copyright fee information B2 "indicating the copyright fee for the author B, and" book data B2 "corresponding to the text written by the author B. If there is another author, the data is stored after "book data B 2".
- Figure 3C shows that e-book data equivalent to one book is divided into chapters, sections, etc.
- This data structure is composed of “Book 3—ID” indicating the ID of Book 3, “Bibliographic information 3” indicating the bibliographic information of Book 3, “Author A—ID” indicating the ID of Author A, "Copyright fee information A3a” indicating the copyright fee for book data A3a, "Book data A3a” corresponding to the first chapter or section of the main text, and "author” indicating the ID of author A A-ID ",” copyright fee information A3b "indicating the copyright fee for book data A3b, and” book data A3b "corresponding to the next chapter or section of the text. If there is another chapter or section, the data is stored after "book data A3 b".
- an insertion slot for inserting cash into the sales terminal 1 may be provided for charging for the sale of the electronic book.
- An insertion slot for inserting the information may be provided.
- charging may be performed by electronic payment via the sales terminal communication unit 18 and the communication line 28.
- the sales terminal 1 is provided with an insertion slot for charging, the sales terminal 1 will be installed as a dedicated terminal at stores such as station stores and bookstores, and the money charged by the sales will be collected. become.
- the sales terminal 1 does not have an entrance for billing, the sales terminal 1 is composed of a general-purpose device such as a personal computer, and a storage device such as a hard disk of the personal computer is used as the sales terminal ID storage unit 16. Used to register the sales terminal ID information in the recording device in advance. Then, when the buyer 3 purchases the electronic book, he inputs information on the sales terminal ID using the operation unit 12 and compares this information with the sales terminal ID recorded on the recording device to determine whether or not the purchase is possible. The determination may be made.
- a dedicated line other than a public line may be used for the communication line 28 connecting the sales terminal 1, the copyright management center 4, the selling terminal 5 and the writer terminal 7, and may use a radio such as a satellite.
- a radio such as a satellite.
- data communication may be performed.
- the electronic copyrighted work distribution management system in this embodiment sells digitized book data as an electronic copyrighted work, but digitalized data of music, programs for personal computers, and games.
- An electronic work such as software of a dedicated machine may be distributed by the electronic work distribution management system.
- the book data storage unit 14 of the sales terminal 1 stores an electronic work other than an electronic book
- the book data writing unit 13 writes the digital work data on the recording medium 2 of the purchaser 3.
- electronic works other than electronic books may be sold.
- the copyright fee is calculated when the digital work is sold at the sales terminal 1, and the digital work data is stored in the recording medium 2 of the purchaser 3. At the time of recording, copyright data is now registered in the Copyright Management Center 4. As a result, copyright fees can be accurately tabulated without collectively managing sales information, and the problem that legitimate copyright fees are not paid to authors due to falsification of the sales volume has become possible. .
- FIG. 4 is a block diagram illustrating a schematic configuration of a digital copyrighted work distribution management system according to the second embodiment of the present invention.
- the recording media 2, the copyright management center 14, the distributor terminal 5, and the author terminal 7 are the same as those in the digital work distribution management system in the first embodiment shown in FIG. Therefore, the detailed description will not be repeated.
- the sales terminal 29 is different from the sales terminal 1 shown in FIG. 1 in that the sales information recording unit 30 for recording information on the sales status of the electronic book at the sales terminal 29 and the sales information recording unit 30 Sales information control unit 31 that controls editing such as writing, reading, and deletion of sales information, sales information management unit 32 that manages sales information editing processing by sales information control unit 31, and sales information.
- Sales information control unit 31 that controls editing such as writing, reading, and deletion of sales information
- sales information management unit 32 that manages sales information editing processing by sales information control unit 31, and sales information.
- a sales information readout card 34 or a sales information management card connection unit 33 to which the sales information management card 35 is connected is added. Only differ. Therefore, detailed description of other configurations and functions will not be repeated.
- the sales information recording unit 30 stores information on the progress of communication with the copyright management center 4 when selling the electronic book described in the first embodiment and information on the progress when writing book data to the recording medium 2. Is recorded. At the time of normal sales, the sales information control unit 31 records such information in the sales information recording unit 30 without any particular restrictions.
- the sales information readout terminal 34 When the sales information readout terminal 34 is connected to the sales information management card connection unit 33, the information recorded in the sales information recording unit 30 is read by performing a predetermined operation using the operation unit 12. Is started.
- the sales information control unit 31 confirms that the sales information readout card 34 is connected to the sales information management card connection unit 33, the sales information control unit 31 obtains necessary information from the sales information recorded in the sales information recording unit 30. Reads the information and displays it on the display unit 9, writes the information to the recording medium 2 inserted from the media insertion slot 10, or sends the information to a printer (not shown) connected to the sales terminal 29. Or print that information.
- the operator can acquire the information recorded in the sales information recording unit 30.
- the sales terminal 29 stores the sales terminal ID stored in the sales terminal ID storage unit 16. A part of a program (a program for reading out the sales information recorded in the sales information recording unit 30) corresponding to is stored. On the other hand, the remaining part of the program corresponding to the sales terminal ID recorded in the sales terminal ID recording section 16 is also recorded on the sales information reading card 34. Since the sales information readout card 34 corresponds to this sales terminal ID, it cannot be used with other sales terminals. In this way, the sales information management unit 32 can execute the program corresponding to the sales terminal ID only when the sales information reading card 34 corresponding to the sales terminal ID is connected to the sales information management card connection unit 33. Is executed, and the information is read out from the sales information recording unit 30.
- the sales information control unit 31 controls the sales information management unit 3 2.
- the information may be read from the sales information recording unit 30.
- the sales information control unit 31 performs hardware control so that information can be read from the sales information recording unit 30 or the sales information control unit 31 sells.
- the program is read from the sales information read card 34 via the information management connection 33 and the sales information manager 32.
- the sales information is recorded in the sales information recording unit 30.
- the sales information management card 35 is connected to the sales information management card connection section 33, a predetermined operation is performed by the operation section 12 so that the information recorded in the sales information recording section 30 is erased. It is started.
- the sales information control section 31 reads out the sales information recorded in the sales information recording section 30. Then, the information is written into the management card storage section 36 built in the sales information management card 35. Then, the sales information control unit 31 deletes the sales information recorded in the sales information recording unit 30.
- the sales terminal 29 has a program (program for erasing sales information recorded in the sales information recording unit 30) corresponding to the sales terminal ID stored in the sales terminal ID storage unit 16. Department is recorded. On the other hand, the remaining information of the program corresponding to the sales terminal ID recorded in the sales terminal ID Is recorded. Since the sales information management card 35 corresponds to this sales terminal ID, it cannot be used with other sales terminals. In this way, the sales information control unit 31 can execute the program corresponding to the sales terminal ID only when the sales information management card 35 corresponding to the sales terminal ID is connected to the sales information management card connection unit 33. Is executed, and the information recorded in the sales information recording unit 30 is erased.
- the sales information readout card 34 or the sales information management card 35 is connected to the sales information management card connection part 33 of the sales terminal 29. Only when connected, the sales information recorded in the sales information recording unit 30 is read or erased, so that the information recorded in the sales information recording unit 30 may be illegally read. It has become possible to prevent rewriting or erasing.
- the sales terminal of the present embodiment performs total management of sales information in an independent state, so that sales information is illegally accessed. And the risk of leakage is extremely small, making it possible to prevent fraudulent operations such as falsification of sales information at sales terminals.
- FIG. 5 is a block diagram illustrating a schematic configuration of a digital copyrighted work distribution management system according to the third embodiment of the present invention.
- the recording media 2, the copyright management center 4, the distributor terminal 5, and the author terminal 7 are the same as those in the digital work distribution management system in the first embodiment shown in FIG. The detailed description will not be repeated.
- the sales terminal 37 is different from the sales terminal 1 shown in FIG. 1 in that a recording media storage unit 38 for temporarily storing the recording media 2 inserted from the media insertion unit 10 is added, and The only difference is that the functions of the sales terminal control unit are different. Therefore, detailed description of the same configurations and functions will not be repeated. The description will be made assuming that the reference numeral of the sales terminal control unit is 39.
- the recording medium 2 inserted from the media insertion port 10 is temporarily stored in the recording medium storage unit 38.
- the book data writing unit 13 sequentially writes the book data to the plurality of recording media 2 according to an instruction from the purchaser 3. .
- the buyer 3 when a plurality of buyers write book data to each recording medium 2, first the buyer 3 inserts the recording medium 2 from the media insertion slot 10 and selects electronic book data to perform a purchase procedure. Do. When the purchase procedure is completed, information indicating how to take out the recording medium 2 after the writing is completed for the purchaser is displayed on the display unit 9 or by a printer (not shown) connected to the sales terminal 37. And output that information. Then, the writing of the electronic book data to the recording medium 2 is started.
- the next purchaser inserts the recording medium 2 from the medium insertion slot 10, it is temporarily stored in the recording medium storage section 38.
- the e-book data is written to the next buyer's recording medium 2 until the first buyer 3 finishes writing the e-book data to the recording medium 2. Only wait.
- the writing of the electronic book data to the recording medium 2 of the first purchaser 3 is completed, the completion of the writing of the first buyer 3 to the recording medium 2 is notified by displaying on the display unit 9 or the like.
- the writing of the electronic book data to the recording media of the next purchaser is started.
- the first purchaser takes out the recording medium 2 after the writing is completed according to the information described above.
- the notification may be made via a communication device owned by the purchaser, for example, a personal computer connected to a communication line.
- FIG. 6 shows the concept of a digital work distribution management system according to the fourth embodiment of the present invention.
- An electronic book display device (hereinafter referred to as “view II”) 101 is digital data which is the content of an electronic book provided from an electronic book sales device (hereinafter referred to as a vendor machine) 103 (usually, this data). Is encoded, so hereafter referred to as "encoded content").
- the vendor machine 103 provides the encoded content to the user 106 via the media 102 or a communication line.
- the medium 102 is formed of a medium such as a magneto-optical disk, an optical disk, a magnetic disk, a hard disk, a magnetic tape, or an IC card capable of recording digital data and reading the data by a device such as a personal computer.
- the vendor machine 103 stores the electronic book data therein, and when the user 106 requests and charges the encoded content, the encoded content stored in the internally stored or distributed content is distributed.
- the encoded content delivered from the center 104 is provided to the user.
- the publisher 108 edits and elaborates the work written by the author 109 and digitizes the work to create encoded content.
- the generated code content is distributed to the distribution center 104 by wire such as a communication line or wirelessly by satellite or the like in response to a request from the distribution center 104.
- the manufacturer 105 is a manufacturer that provides the view 106 to the user 106, and when the view 101 is provided to the user 106, the user key is embedded in the view 101 and provided. At the same time, the user key is provided to the key information management device (hereinafter referred to as a key management center) 110. As will be described later, the encoded content is decoded by the view # 101 using the user key.
- a key management center the key information management device
- the key management center 110 manages and issues key data and the like, which will be described later, by wireless or wired communication with the venture machine 103, the media server 105, or the publisher 108. .
- the digital copyrighted work distribution management system shown in FIG. 6 has a configuration in which each device is connected one by one for simplicity, but usually, a plurality of devices are connected.
- the provider 1 1 1 1 1 distributes e-book data to the home terminal 1 1 2 (for example, a personal computer), and the price for the encoded content is provided by the provider. Paid for Ida 1 1 1
- the e-book data stored in the provider 111 is distributed from the publisher 108.
- the provider 111 can be realized with the same function as the distribution center 104, and the home terminal 112 can be realized with the same function as the function of the single vendor 103.
- FIG. 7 is a block diagram showing a schematic configuration of one vendor 103 shown in FIG.
- the vendor machine 103 includes a CPU 201 for controlling the entire vendor machine 103, a memory 202 for storing processing contents, programs, and the like, and a plurality of encoded contents and the encoded contents.
- a key management center line IZF (interface) 20 that communicates via a communication line between the hard disk 203 that stores auxiliary information for normal reproduction or display and the key management center 110. 5, a distribution line I / F 206 that communicates with the distribution center 104 via a communication line, and a display device 200 that displays information to the user of the vendor machine 103.
- IZF interface
- An internal bus 2 connects these components. 0 4 is included.
- FIG. 8 is a block diagram showing a schematic configuration of view # 101.
- the view ⁇ 101 controls the view 1 101 in its entirety, and includes a processing unit 301 comprising a CPU and a DSP (Digital Signal Processor) for performing various arithmetic processing, and a processing unit 310 RAM 302 that temporarily stores the information used by the storage unit, and ROM 030 3 that stores a processing program executed by the processing unit 301 and a user key and the like, which is information specific to the view 101 described later.
- a processing unit 301 comprising a CPU and a DSP (Digital Signal Processor) for performing various arithmetic processing
- a processing unit 310 RAM 302 that temporarily stores the information used by the storage unit
- ROM 030 3 that stores a processing program executed by the processing unit 301 and a user key and the like, which is information specific to the view 101 described later.
- An internal medium 304 for storing the encoded content read from the vendor machine 103; a media drive 304 including a disk drive for reading the encoded content from the medium 102; A communication port I / F 306 for communicating with the device 103 via a communication line, and an image memory for storing an image (content information) to be presented to the user after decoding the encoded content.
- the audio unit 310 includes an audio codec or the like configured to reproduce a coded or coded musical sound and output it from a speaker, and a system bus 311 to which these components are connected.
- FIG. 9 is a block diagram showing a schematic configuration of the key management center 110.
- the key management center 110 includes a CPU 401 that controls the entire key management center 110, a memory 402 that stores processing contents, programs, and the like, a hard disk 403 that stores information such as a user key, which will be described later, A vendor line I ZF 405 that communicates with the vendor machine 103 via a communication line, a publisher line I / F 406 that communicates with the publisher 108 via a communication line, and a manufacturer 105 Maker line I / F 4 ⁇ 7 that communicates with a communication line between the two, a media drive 410 that reads and writes data to and from the media 411, and an internal bus that connects these components And 404.
- FIG. 10 is a diagram showing communication contents such as key information among the view 101, the vendor machine 103, the publisher 108, and the key management center 110.
- the key management center 110 has a content correspondence table 501 and a user correspondence table 502 on an internal hard disk 403.
- the content correspondence table 501 includes a content ID, which is information unique to the encoded content of the electronic book created by the publisher, and a content key necessary for interpreting, reproducing, and displaying the encoded content in the view 101. And are stored in pairs. Note that a plurality of content keys may be stored in association with one content ID.
- the content ID in the content correspondence table 501 is created by any of the following methods.
- the key management center 110 creates a content ID each time.
- the content key in the content correspondence table 501 is created by the publisher by one of the following methods, and transmitted to the key management center 110.
- (2-1) Publisher 108 Creates a content key corresponding to the content ID described above, and transmits a pair of the content ID and the content key to the key management center 110. Then, the key management center 110 adds the set of the content ID and the content key to the content correspondence table 501.
- the content ID obtained in (1-1) or (1-2) is transmitted to the key management center 110, and the key management center 110 encodes the content corresponding to the content ID.
- An encryption key 5 14 and a decryption key 5 15 are created, and only the encryption key 5 14 is transmitted to the publisher 108.
- the publisher 1108 encodes the contents of the electronic book using the encoding key 512 transmitted from the key management center 110.
- the key management center 110 adds a set of the content ID and the content key (decryption key) to the content correspondence table 501.
- the user correspondence table 502 contains the user ID, which is information unique to the user 106 or view ⁇ 101, and is required when interpreting, reproducing, and displaying encoded content in the corresponding view ⁇ 101 A pair with the user key is recorded.
- the user ID and the user key in the user correspondence table 502 are created by any of the following methods.
- the key management center 110 creates a user ID for each view No. 101 and sends it to the manufacturer 105.
- the manufacturer 105 Upon receipt of the user ID, the manufacturer 105 creates a user key and embeds it in the view No. 101. Then, the manufacturer 105 transmits a pair of the user ID and the user key to the key management center 110.
- the key management center 1 1 0
- the set of the received user ID and user key is added to the user correspondence table 502.
- a user ID and a user key are assigned to each view ⁇ 101, but the same user ID and user key are assigned to all views ⁇ 101, or a specific view ⁇ For example, a single user ID and user key pair may be assigned to a plurality of views ⁇ installed in a library or school.
- the vendor machine 103 and the key management center 110 are described as separate devices. May be provided.
- the user 106 When the user 106 acquires encoded content from the vendor machine 103, first, the user 106 uses the user interface 208 while referring to the display device 207 of the vendor machine 103. Select the encoded content to be purchased, and connect View No. 101 and communication port 210 as necessary.
- the CPU 201 in the vendor machine 103 confirms that the view ⁇ 101 is connected to the communication port 210, and then acquires the user ID 510 stored inside the view 0 101 And store it in memory 202. This user ID may be directly input by the user 106 via the user interface 208.
- the hard disk 203 of the vendor machine 103 stores a plurality of encoded contents and corresponding content IDs 504 for each predetermined unit, for example, for each title of an electronic book.
- the CPU 203 extracts the encoded content and the content ID corresponding to the book selected by the user 106 from the hard disk 203.
- consideration for the electronic book selected by the user 106 for example, cash or a prepaid card, is inserted into the billing device 211 by the user 106.
- the billing device 2 1 1 confirms the price and performs settlement.
- the CPU 201 receives the notice of the settlement completion from the billing device 211, the user ID and the content ID stored in the memory 202 are converted into the key via the key management center line IZF 205.
- the key management center 110 receives the content ID and the user ID from the vendor machine 103 via the vendor line I / F 405 and stores them in the memory 402. Then, the CPU 410 of the key management center 110 searches the content correspondence table 501, extracts a content key corresponding to the received content ID, and stores the content key in the memory 402. The user correspondence table 502 is searched, and the user key corresponding to the received user ID is extracted and stored in the memory 402.
- FIG. 11 shows an example of a bit string generated by the arithmetic module 503.
- This bit string has a bit number area 601 in which the number of bits indicating the length of the bit string itself is stored, and an operation type identifier area in which an identifier indicating the type of operation performed on the user key and the content key is stored. 6 0 2 and an operation result area 6 03 in which an operation result obtained by performing an operation on the user key and the content key is stored.
- the operation result stored in the operation result area 603 is variable-length data.
- the calculation module 503 selects a calculation from a plurality of calculation programs stored in the memory 402 or the hard disk 403, and stores an identifier of the selected calculation in the calculation type identifier area 602. . Then, the calculation module 503 performs the selected calculation on the input user key and content key, and stores the calculation result in the calculation result area 603. Finally, the arithmetic module 503 calculates the length of the entire bit string and stores it in the bit number area 601.
- the operation F performed by the operation module 503 is an operation for calculating one output value from two input values, and satisfies the following conditions. Note that X represents a user key, and Y represents a content key.
- F is defined as “operation” and G is defined as “solution operation” To There are countless combinations of these operations F and solution operations G, one example of which is shown below.
- ⁇ ⁇ means that the numerical value ⁇ is regarded as a binary bit string and rotated rightward X times. That means).
- a solution operation G is associated with the operation F in advance, and after an operation type identifier is assigned to each pair of the user key X and the content key ⁇ , the combination of the operation F and the operation type identifier becomes a key. It is stored in the management center 1 10. On the other hand, a set of the corresponding solution operation G and operation type identifier is stored in advance in view # 101.
- the key management center 110 transmits a bit string including the operation result and the operation type identifier obtained by the above operation to the vendor machine 103.
- the CPU 201 of the vendor machine 103 combines the bit string received from the key management center 110 with the encoded content already selected by the user 106, and writes it to the medium 102 by the media writer 209.
- the vendor machine 103 received one type of bit string for one encoded content and wrote it to the medium 102, but depending on the charging situation of the user 106, the A request may be made to the key management center 110 to create a bit string, and the plurality of bit strings may be received and written to the medium 102. That is, the vendor machine 103 stores charging information in the content charging information table 1201 corresponding to the encoded content, and transmits a different content ID to the key management center 110 according to the charging information.
- FIG. 12 shows an example of the content accounting information table 1221. For example, if a user 106 enters 100 yen, one vendor 103 sends only the content ID 1 to the key management center 110, and receives only the bit string corresponding to the content ID 1.
- the vendor machine 103 sends the content ID 1, the content ID 2 and the content ID 3 to the key management center 110, and the content ID 1, the content ID 2 and 3 types of bit strings corresponding to content ID 3 are received. That is, the content IDs of different types and numbers are transmitted to the key management center 110 according to the charging status, the bit string corresponding to the content ID is received from the key management center 110, and the user 106 A set of the selected coded content and the corresponding bit string is recorded on the media 102.
- the processing unit 310 of the view 1 101 includes a separation module 506 that separates the bit sequence recorded on the medium 102 from the encoded content, and a bit sequence that is separated by the separation module 506. And a decryption module 508 that performs a solution operation on the operation result 603 included in the content key to generate a content key, and a decryption module 508 that decrypts the encoded content using the content key.
- the separation module 506 separates the bit sequence recorded on the recording medium 102 from the coded content, transfers the bit sequence to the solution operation module 507, and decodes the coded content into the decoding module 508. Transfer to
- the solution calculation module 507 extracts the calculation result B stored in the calculation result area 603 of the bit string transferred from the separation module 506, extracts the calculation type identifier 602, and calculates the solution calculation G. select. Then, by performing a solution operation G on the user key X containing the solution operation module 507 and the operation result B, a content key Y is generated and transferred to the decryption module 508.
- the decryption module 508 decrypts the encoded content using the content key transferred from the solution operation module 507, and displays the content on the LCD 308. It will be described later.
- the publisher 108 transmits the original content key 5112 to the key management center 110 instead of transmitting the original content key 5112 to the content key 5112.
- predetermined encryption may be performed using the No. key 514 and transmitted to the key management center 110 as a content key.
- the content key generated by the solution operation module 507 can be decrypted using the decryption key 516 to obtain the original content key 5122. it can.
- the processing unit 310 When the medium 102 is inserted into the media drive 300 of the view 101, the processing unit 310 reads the bit string and the encoded content from the medium 102, and executes the content key 5 by the processing procedure described above. Generate 1 5 As shown in FIG. 13, when three types of bit strings are added to the encoded content, the solution operation module 507 generates three types of content keys and stores them in the RAM 302.
- the interpretation module 703 interprets the encoded content 701 and divides it into a plurality of processing procedures 704 and a plurality of data modules 705. Each processing procedure 704 is executed by the corresponding processing module 706. Note that the interpretation module 703 and each processing module 706 are realized by the processing unit 301 executing a predetermined program.
- the processing module 706 corresponding to the processing procedure 704 performs processing while appropriately referring to the data module 705 separated by the interpretation module 703. Further, the data module 705 includes a processing module for providing a processing function that does not exist in the view 101, such as image data, a processing table, font data, or the like, as described later.
- the interpretation module 703 and the processing module 706 perform processing, the content key 515 generated by the solution operation module 507 is appropriately referred to.
- FIGS. 14A to 14D are diagrams showing display attributes of view # 101.
- the view 101 shown in Fig. 14A includes two LCDs with 768 x 10 24 pixels and 8 grayscale monochrome, and each LCD can display a different screen. It is.
- View B 101 shown in FIG. 14B includes only one LCD having the same number of pixels and gradation as the LCD shown in FIG. 14A, and can display only one screen of display data.
- the view No. 101 shown in FIG. 14C also includes only one LCD having the same number of pixels and gradation as the LCD shown in FIG. 14A, and the display data for two screens is reduced and displayed in a list. can do.
- the view No. 101 shown in FIG. 14D includes one LCD of 480 ⁇ 640 pixels and 260,000 colors, and can display only one screen of display data.
- the display attributes of each of these views 101 are registered in the RAM 302 in accordance with the display mode.
- the display attributes include the number of LCDs (the number of LCDs mounted on View No. 101), the number of LCD pixels (the number of horizontal and vertical pixels on the LCD mounted on View No. 101), and the LCD color (monochrome Z color distinction, number of gradations, number of colors), display direction (indicate whether the user 106 looks at the LCD horizontally or vertically when viewing the LCD), number of pages (how many pages per LCD screen) ) Indicating whether to display the minute or not.
- FIG. 15 shows display attributes corresponding to the display forms of the view 101 shown in FIGS. 14A to 14D.
- This coordinate system includes three types: an image coordinate system, a page coordinate system, and a display coordinate system.
- the coordinate system has a pixel as a unit and the origin is at the upper left.
- the image coordinate system is a coordinate system for describing the original image data to be displayed.
- Fig. 16 shows illustrations (300 x 200 pixels, 8 gradations), photographs (640 x 480 pixels, 16 million colors) ) And font images (64 x 64 pixels per character, 2 tones).
- the page coordinate system is virtual coordinates provided for specifying a position and a size on a page when displaying an image.
- the display coordinate system is a coordinate system defined corresponding to the display attributes described above.
- each processing module 706 converts the display object described in the image coordinate system into the display coordinate system and displays it on the LCD 308. I do.
- FIG. 17 and FIG. 18 are diagrams illustrating an example of the encoded content 701.
- FIG. This encoded content consists of multiple data and processing programs called modules. It is described and configured.
- the interpretation module 703 reads each module continuously and causes each processing module 706 to perform processing, thereby reproducing the content.
- Steps 1 to 3 shown in FIG. 17 are data necessary for the entire content, and the interpretation module 703 reads this data first. Thereafter, when the interpretation module 703 reads the data in page units, the content is sequentially reproduced and displayed in page units.
- One module contains a module name, a start identifier, and an end identifier. For example, the start identifier (1002) of the image data to the end identifier (1008) of the image data indicate one module, and the start identifier and the end identifier have a module name.
- the interpretation module 703 extracts a module name for each module, and transfers the module to the processing module 706 corresponding to the module name.
- the processing module 706 to which the module has been transferred executes the processing of the module, for example, by calling a subroutine program. For example, when the interpretation module 703 interprets the I MAGE module (1002 to 1008) shown in FIG. 17, it transfers this I MAGE module to the I MAGE processing module, and the I MAGE processing module performs the subsequent processing. Execute.
- Each module shown in Fig. 17 and Fig. 18 includes an area for specifying the content key. If a content key is specified when the interpretation module 703 interprets each module, the content key generated by the above-described process is searched, and after the encoded content is decoded, each process is performed. Transfer to module 706.
- IMAGE processing module (Module name: IMAGE)
- the encoded image data is expanded in the method indicated by the compression method identifier and stored in the RAM 302.
- the image data ID number is assigned to the storage area of the image data.
- Table data indicating the image processing method is decrypted using the specified content key
- the data is expanded and stored in the RAM 302. If the table data is successfully expanded, a table ID number is assigned to the storage area of this table.
- FIG. 19 shows an example of this processing table. For example, if enlargement processing is performed when processing ID “1” is specified, edge enhancement processing is performed after linear interpolation processing is performed on image data.
- edge enhancement processing is performed after linear interpolation processing is performed on image data.
- the simple reduction process is performed on the image data.
- bit slice processing is performed on image data.
- the bit slicing process refers to a process of discarding lower-order bit data of color data or gradation data of an image represented by a plurality of bits.
- MODULE processing module (Module name: MODULE)
- the processing module itself is expanded and stored in the RAM 302 as a processing module. If the processing module is successfully expanded, the processing module name is added to the storage area of this processing module.
- This MODULE processing module is used when it is desired to execute processing other than the processing modules registered in advance in view # 101.
- the start of page data is indicated, and the number of pixels in the X direction and the number of pixels in the y direction of the page are stored in the RAM 302 as attributes of the page data.
- the area between the descriptor indicating the start of the page data and the descriptor indicating the end corresponds to each page.
- PUT I MAGE processing module (Module name: PUTI MAG E) After the processing of the image data having the specified ID and existing in the RAM 302 is performed, the image data after this processing is stored in the image memory 307. Is transferred to the LCD 308 for display. The processing procedure of the PUT I MAGE processing module will be described in detail below.
- FIG. 20 is a diagram for explaining the processing procedure of the PUT I MAGE processing module.
- the PUT I MAGE processing module 706 includes the number of pixels (X o XY o) of the original image (image coordinate system) that is the display object, the coordinates of the start point of the original image (X so, Y so), the number of pixels of the original image (DX s XDY s), the number of pixels of the page (page coordinate system) ( Xp XYp), page area start point coordinates (X ⁇ , ⁇ ) and page area pixels (DXp XDYp) are read from the corresponding area and image data in the module.
- the PUT I MAGE processing module 706 calculates the number of pixels of the display area (display coordinate system) (Xd XYd), the coordinates of the start point of the display area (Xdo, Ydo), and the number of pixels of the display area (DXd XDYd). Is extracted from the RAM 302 and the enlargement / reduction processing is performed. As shown in Fig. 20, the scaling factor of the enlargement / reduction processing is theoretically displayed from the page coordinate system after performing the enlargement / reduction processing to convert the image coordinate system to the page coordinate system. This is the overall magnification when the enlargement / reduction processing for converting to the coordinate system is performed. Therefore, in this embodiment, the area of the original image is enlarged / reduced at the following magnification.
- This enlargement / reduction processing is executed by referring to the processing table shown in FIG. 19 and selecting a processing method.
- the color reduction processing is selected and executed by referring to the processing table shown in FIG. .
- the display is performed by being written into the area in the image memory 307.
- the pixel value of the image data having the specified ID is changed by the function described below and then transferred to the image memory 307, so that the display is performed on the LCD 308. This CAOS process will be described in detail below.
- the following processing is performed on the image data having the specified ID stored in the RAM 302 (hereinafter referred to as I 0 (z)) using the processing parameters in the module. (Hereinafter referred to as a result image).
- z indicates the pixel data index, and the image is composed of X0XY0 pixels. If so, 0 ⁇ z (X 0 XY 0).
- A, P, and N are the numerical values recorded in the module.
- A is the initial value, where 0 ⁇ A ⁇ 1.
- P is a processing parameter recorded in the module and is a random value, but it is preferable that P ⁇ 3.6.
- N is the number of repetitions.
- the result image I1 obtained by the above processing is subjected to enlargement / reduction processing and color reduction processing in the same way as the PUT I MAGE processing module, with reference to the parameters recorded in the module.
- the data is transferred to 307 for display.
- a processing module using a random number function RAND may be defined to perform processing.
- the image quality of the displayed image and the size of the processing module are different, the same effect as when the CAOS function is used can be obtained.
- the processing for mixing / removing noise with CAOS to image data has been described, the mixing / removal of noise with CAOS for other modules may be similarly performed.
- BLUR processing module module name: BLUR
- the image data After performing blur processing, which is one of image processing methods, on image data having the specified ID, the image data is transferred to the image memory 307, so that the blurred image is displayed on the LCD 308.
- the blurring process is not performed by forcibly setting the number of repetitions N described later to "0". Hereinafter, the blurring process will be described in detail.
- the following processing is performed on the image data having the specified ID stored in the RAM 302 (hereinafter referred to as I 0 (x, y)) using the processing parameters in the module.
- the subsequent image (hereinafter referred to as the result image I 1 (X, y)) is obtained.
- X and y indicate coordinate indices of pixel data.
- Step 2 The image I 1 is subjected to enlargement / reduction processing and color reduction processing in the same manner as PUT I MAGE, and transferred to the image memory 307 to display the image.
- P and N are parameters recorded in the module
- * M (P, X, y) means moving average processing using a PXP mask centered on coordinates (x, y).
- processing may be performed by defining a processing module using various image processing functions such as edge enhancement.
- image processing functions such as edge enhancement.
- the quality of the displayed image and the size of the processing module will differ, but the same effect can be obtained.
- the processing of the IMAGE module is executed by the processing module 706. Since the content key 1 exists in the view No. 101 (see FIG. 13), the encoded image data that has been compressed by MH (Modified Huffman) encoding is decompressed, and the image data ID number “1” is displayed. "Is added to the RAM 302 as a bitmap image.
- MH Modified Huffman
- the processing of the TABLE module is executed by the processing module 706. Since the content key 2 exists in the view No. 101 (see FIG. 13), the table data is expanded, an ID number “1” is assigned to the table, and the table is loaded into the RAM 302 as a processing table. In the encoded content shown in FIG. 17, this processing table is normally loaded because the content key 2 exists. However, depending on the billing situation of the vendor machine 103 by the user 106, this processing table is not loaded normally, so that the processing using this processing table may not be possible in the subsequent processing.
- the processing of the MODULE module is executed by the processing module 706. Since the content key 3 exists in the view No. 101 (see FIG. 13), the encoding processing module is decrypted, and the processing module name is assigned to the RAM 302 with the processing module name CAOS. As in step 2, depending on the user's billing status, this processing module is not loaded properly, so the processing using the CAOS processing module may not be executed in the subsequent processing.
- the processing of the PAGE module is executed by the processing module 706. Since this module does not specify a content key, Is performed. Specifically, until the page end descriptor ZPAGE is read, the number of X-pixels 768 and the number of Y-pixels 1024 in the page coordinate system are loaded into the RAM 302 as attributes of the page data and used in the subsequent processing.
- the processing of the IMAGE module is executed by the processing module 706. Since the content key 2 exists in the view ⁇ 101 and the page pixel number specification (768 x 10 24) matches the display attribute loaded in step 4, it is compressed by JBIG (Joint Bi-level Image Group) encoding. The encoded image data is decompressed, assigned an image data ID number “2”, and loaded into the RAM 302 as a bitmap image. Since this IMAGE module is described in the PAGE descriptor, it is unloaded from the RAM 302 when the end-of-page descriptor is interpreted. The processing of the IMAGE module is executed by the processing module 706. Although the content key 2 exists in the view # 101, this processing is not performed because the page pixel number specification (480 ⁇ 640) does not match the display attribute loaded in step 4.
- JBIG Joint Bi-level Image Group
- the images specified in step 5 and step 6 are not simultaneously loaded into the RAM 302 because they are selectively processed according to the display attributes. This means that the image to be processed thereafter can be changed by the number of page pixels. For example, depending on the display mode of the view 101, high-quality display is not possible by the enlargement / reduction processing like a font image or the like, so that it is possible to change the font image or the like to cope with it.
- the processing of the IMAGE module is executed by the processing module 706. Since the content key 3 exists in the view No. 101 and the display attribute specification such as the number of page pixels does not exist, the encoded image data compressed by the JPEG (Joint Photographic Experts Group) encoding method is decompressed.
- JPEG Joint Photographic Experts Group
- the image data ID number "3" is added to the RAM 302 as a bitmap image. For example, if the content key specified in the IMAGE processing module does not exist in the view 101, the image data may not be loaded and may not be displayed on the LCD 308 as a result.
- the processing module 706 executes the processing of the PUT I MAGE module on the image of the already loaded image data ID number “1”. Since the content key 2 exists in the view No. 101 and the display attribute specification such as the number of page pixels does not exist, the processing of the PUT I MAGE module is executed. Since the processing table having the ID number "1" used for this processing has already been loaded into the memory 302, if image processing such as enlargement / reduction processing and color reduction processing is required, the processing ID in the processing table is used. The process corresponding to "1" (see Fig. 19) is used. Depending on the billing status by the user 106, the image processing may not be performed or the predetermined default image processing may be performed because the processing table is not loaded. The processing module 706 executes the processing of the B LUR module on the image data of the image data ID “3” already loaded. Since the content key 4 does not exist in the view # 101, the image displayed on the LCD 308 is gradually blurred with time.
- the processing module 706 executes the processing of the CAOS module on the image of the image data ID “2” already loaded in the RAM 302. Since the content key 3 exists in the view 101, a normal image is displayed on the LCD 308 even if the image data has been subjected to the image processing by the CAOS function in advance. Thereafter, similar processing is executed according to the encoded content.
- the respective devices used in the electronic copyrighted work distribution system in the present embodiment are to be processed, they are stored in a computer-readable medium such as a magnetic disk, an optical disk, or an IC card, and installed on a hard disk as appropriate.
- the program may be executed. Further, the information may be supplied to each device via a communication line.
- FIG. 21 is a diagram for describing an outline of the processing of view # 101 when the above-described bit string exists in the non-readable area of medium 102.
- Bit string 1 and encoded content are recorded in the readable area of the medium 102, and bit string 0 is recorded in the non-readable area.
- a detection module 1401 for detecting a bit string in a non-readable area is provided in the view 101. Detecting module 1401 Force S Detects bit string 0 recorded in this non-readable area, and solution operation module 507 generates a content key from this bit string 0 and the user key. Subsequent processing is the same as the processing described above, and thus detailed description will not be repeated.
- FIGS. 22A and 22B are diagrams for explaining the non-readable area provided in the medium 102.
- a non-readable area is provided around the readable area of a disk-shaped medium 102 such as a CD-ROM (Compact Disc-Read Only Memory) or MD (Mini Disc).
- the readable area is an area that can be read by a general-purpose reader by a normal operation of the user 106
- the non-readable area is an area that cannot be read by a general-purpose reader by a normal operation of the user 106. .
- the detection module 1401 detects the bit string recorded in the non-readable area.
- a non-readable area 1503 may be provided in the case 1501 for storing the medium 102.
- slot 1502 is opened and data is recorded on media 102.
- the read content is read by the media disk 305.
- the non-readable area 1503 is created by attaching a barcode seal to the case 1501 or by performing an uneven process.
- the detection module 1401 detects the bit string recorded in the non-readable area.
- the detection module 1401 detects a bit string recorded in the non-readable area, the encoded content is interpreted, reproduced, and displayed by the following method.
- the detected bit string is input to the solution calculation module 507, and the same processing as the bit string existing in the readable area of the medium 102 is performed. Then, a content key is generated, and the content key is generated. The key is used by the decryption module 508. In this way, even when the information recorded in the readable area in the medium 102 is copied using a general-purpose reading device, not only the reproduction of the encoded content is prohibited, but also as described above.
- the display control also enables control such as blurring of an image.
- the image data is enlarged and reduced according to the display attribute, and the color reduction process is performed. It is now possible to properly reproduce encoded content on display devices.
- the key information management device 110 performs an operation on the user key and the content key to generate a bit string
- the e-book display device performs a solution operation on the bit string to generate a content key.
- Content is played only on specific e-book display devices. Therefore, it has become possible to prohibit a user from illegally copying encoded content and using the encoded content illegally.
- each encoded content is reproduced according to the billing status, it is possible to flexibly change the content of the digital work provided to the user.
- FIG. 23 is a schematic configuration of a digital copyrighted work distribution management system according to the fifth embodiment of the present invention.
- This digital copyrighted work distribution management system includes a vendor machine 8100 and a view 820. Note that the configurations of the vendor machine 8100 and the view 820 are the same as the configurations of the vendor machine 103 shown in FIG. 7 and the view 101 shown in FIG. 8, respectively, and only the functions are different. Therefore, detailed description of the configuration of bender machine 8100 and view # 820 will not be repeated.
- the publisher edits and elaborates the work and digitizes the work to create e-book data 811.
- the created electronic book data 811 is distributed to the vendor machine 8110 via a communication line or the like.
- the electronic book data 811 includes one or more sets of information in which a header and data are paired.
- the electronic book data 811 has a pair of header 1 and data 1.
- description will be made assuming that the header 1 and data 1 are included in the electronic book data 811.However, when a plurality of pairs of header and data are included, The processing shown will be applied to each header and data set, or to a typical header and data set. Note that only data 1 may be distributed from the publisher, and header 1 may be added during the distribution process from the publisher. Header 1 contains two types of information corresponding to each content. These two types of information are referred to as information 1 and information 2, and the details are described below.
- Information 1 is information indicating the expiration date of each content, and has the following three types of descriptions.
- Information indicating the period of use of the content is described, for example, one month, one week, or two years.
- information 2 is information indicating a reproduction processing method to be executed based on a comparison of a user ID described later, and one of the following three types is described.
- the user ID is a force received via the communication port 210 shown in FIG. 7 and is directly input by the user via the user interface 208.
- the processing unit 1 (814) acquires the information 1 described in the header 1 and executes the following processing according to the content of the information 1.
- the processing unit 1 (814) writes the header 1 as it is as the header 1 'in the electronic book data 816 without any processing.
- the processing unit 1 (814) writes the header 1 as it is as the header 1 'in the electronic book data 816 without any particular processing.
- the current time is obtained from 12 and the usage period is added to this current time to calculate the expiration date. Then, the processing unit 1 (814) writes the calculated expiration date in the electronic book data 8 16 as the header 1 '.
- the header 1 'of the newly created e-book data 8 16 contains either information indicating that the expiration date is not described or information indicating the expiration date. Become.
- the processing unit 2 (8 15) acquires the information 2 described in the header 1, and executes the following processing according to the content of the information 2.
- processing unit 2 (815) encrypts data 1 using the user ID as key information. To generate data 1 ′ and record it in the electronic book data 816.
- processing unit 2 (815) will use data encryption key
- the data 1 ′ is encrypted to generate data 1 ′ and recorded in the electronic book data 816.
- the processing unit 2 (8 15) encrypts the data 1 with the encryption key 813. To generate data 1 ′ and record it in the electronic book data 8 16. Next, the processing unit 3 (8 1 7) generates the header generated by the processing unit 1 (8 14).
- the auxiliary information 8 18 is generated with reference to 1 ′, the data 1 ′ generated by the processing unit 2 (815) and the user ID.
- the processing unit 3 (817) calculates a hash value from the header 1 ′ and the data 1 ′ using a hash function.
- This hash function is a process for converting a long bit string (header 1 'and data 1') into a short bit string. For example, all data of header 1 'and data 1' are added, and the lower 8 bits of the addition result are added.
- an existing processing method such as CRC, SHA-1 or MD5 is assumed as the hash function.
- the processing unit 3 (817) receives the calculated hash value and the user ID as inputs, and calculates auxiliary information using the function F.
- This function F is a function such as a cryptographic function of the common key method. If the hash value is data to be encrypted and the user ID is a key for encryption, the auxiliary information is expressed as follows: Is done.
- the auxiliary information 818 generated by the above processing is added to the electronic book data 816 and provided to the user.
- the processing unit 1 (814), the processing unit 2 (815), and the processing unit 3 (8 17) are realized by the CPU 201 shown in FIG. 7 executing a program stored in the memory 202. .
- the method in which the vendor machine 810 provides the electronic book data 816 to the user is the same as the method described in the fourth embodiment.
- the processing unit 4 (823) calculates a hash value from the header 1 'and data 1' of the electronic book data 816 provided by the vendor machine 820 using a hash function. Then, the processing unit 4 (823) receives the calculated hash value and the user ID as inputs, and calculates auxiliary information by the function F described above. The processing unit 4 (823) compares the auxiliary information calculated in this way with the auxiliary information 8 stored in the electronic book data 8 16. 18 and if they match, it is determined that the user ID matches. If they do not match, it means that the header 1 'or data 1' has been tampered with or the user ID does not match, and it is determined that "the user ID does not match".
- the processing unit 5 (825) acquires the information 1 from the header 1 'and, if the expiration date is not described in the information 1, instructs the reproduction processing unit 828 to normally reproduce the encoded content. I do. Further, when the expiration date is described in the information 1, the processing unit 5 (825) compares the current time with the expiration date with reference to the clock 824. If the current time does not exceed the expiration date, the processing unit 5 (825) instructs the reproduction processing unit 828 to normally reproduce the encoded content. If the current time exceeds the expiration date, the processing unit 5 (825) instructs the reproduction processing unit 828 not to reproduce the encoded content.
- the processing unit 6 acquires the information 2 from the header 1 ', and if the information 2 is "information indicating that the content is not reproduced when the user ID does not match", the processing unit 4 (823) Obtain the judgment result by. If the determination result is "the user ID matches", it instructs the reproduction processing unit 828 to decode the data 1 'using the user ID as key information and to normally reproduce the encoded content. If the judgment result is "user ID does not match", the encoded content is not reproduced without decoding data 1 '.
- the processing unit 6 acquires the determination result by the processing unit 4 (823). If the result of the determination is “user ID matches”, it instructs the reproduction processing unit 828 to decode the data 1 ′ using the decoding key 287 as key information and to play back the encoded content normally. If the determination result is “user ID does not match”, data 1 ′ is decrypted using decryption key 827 as key information. However, when the encoded content is reproduced, information 1 ′ is described in information 2 of header 1 ′. The playback processing unit 828 is instructed to play back using the playback processing method that is used.
- the processing unit 6 transmits the decryption key 827 to the key information. And instructs the reproduction processing unit 828 to normally reproduce the encoded content. Note that the reproduction processing unit 828 performs reproduction by the method of reproducing the encoded content described in the fourth embodiment.
- FIG. 24 is a flowchart for explaining the procedure of the user ID registration processing of the view 820 in the present embodiment.
- This processing is started when the view 820 is reset or when software is installed.
- the user is displayed on the LCD 308 or the like to check whether the view ID 820 uses the user ID generated or whether to register an existing user ID. If the user selects to use the user ID generated by the view ⁇ 820 (S 21, No), the user ID generation registration unit 821 executes a function that inputs a random number, time information, a user name, or the like. A user ID is automatically generated using this (S22).
- the user ID generation / registration unit 821 acquires the user ID via the input unit 309 (S23). ). Then, the user ID generation / registration unit 821 registers the user ID automatically generated in step S22 or the user ID acquired in step S23 (S24), and ends the process.
- step S23 If the same user ID is registered in a plurality of views 820, it becomes possible to reproduce the coded content copied illegally.
- the registration of the user ID by the user in step S23 is permitted on the assumption that one user owns a plurality of views 820. Therefore, only the specific user is allowed to perform the process in step S23, and the other users are not allowed to perform the process in step S23, and only the user ID obtained by the automatic generation is registered in the view ⁇ 820.
- the processing in step S23 may not be permitted to all users.
- processing unit 4 (823), the processing unit 5 (825) and the processing unit 6 (826) are realized by the processing unit 301 shown in FIG. 8 executing a program stored in the RAM 302 or the ROM 303.
- the vendor machine 8100 calculates the hash value from the header 1 and the data 1, encrypts the hash value using the input user ID as key information, generates auxiliary information, and adds it to the electronic book data.
- the view ⁇ 820 can determine whether the user ID matches by comparing the auxiliary information generated by itself with the auxiliary information added to the electronic book data, and the electronic book data copied illegally can be determined. It is now possible to determine whether
- the playback processing method can be set individually for each coded content, it is possible to set more finely the content that can be trial-read.
- the user ID is registered by automatically generating the user ID by the view ⁇ 820 or by inputting the existing user ID by the user, so that the publisher or the key management center does not need to manage the user ID.
- the structure of the entire system can be significantly reduced, and the procedures can be simplified.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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DE69939118T DE69939118D1 (de) | 1998-07-02 | 1999-06-30 | Verwaltungssystem elektronischer erzeugnisse, in dem folgende geräte über kommunikationsleitungen miteinander verbunden sind: gerät zum verwalten von urheberrechten, verkaufsgerät für elektronische erzeugnisse, einrichtung zum anzeigen elektronischermationen |
JP2000558495A JP3733026B2 (ja) | 1998-07-02 | 1999-06-30 | 電子著作物販売装置 |
US09/720,791 US6907407B1 (en) | 1998-07-02 | 1999-06-30 | Copyright management apparatus |
EP99926846A EP1096443B1 (en) | 1998-07-02 | 1999-06-30 | Copyright management device, electronic-production sales device, electronic-book display device, key information management device, and electronic-production distribution management system in which these devices are connected via communication lines |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP10/187057 | 1998-07-02 | ||
JP10/187056 | 1998-07-02 | ||
JP18705798 | 1998-07-02 | ||
JP18705698 | 1998-07-02 |
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US09/720,791 A-371-Of-International US6907407B1 (en) | 1998-07-02 | 1999-06-30 | Copyright management apparatus |
US10/688,928 Division US20040093279A1 (en) | 1998-07-02 | 2003-10-21 | Copyright management apparatus, electronic copyrighted work sales apparatus, electronic book display apparatus, key information management apparatus, and electronic copyrighted work distribution management system in which apparatuses are connected by communication line |
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PCT/JP1999/003513 WO2000002171A1 (fr) | 1998-07-02 | 1999-06-30 | Dispositif de gestion du droit d'auteur, dispositif de vente de produits electroniques, dispositif d'affichage de livres electroniques, dispositif de gestion d'informations codees, et systeme de gestion de la distribution de produits electroniques, dans lequel ces dispositifs sont relies par des lignes de communication |
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US (2) | US6907407B1 (ja) |
EP (1) | EP1096443B1 (ja) |
JP (1) | JP3733026B2 (ja) |
KR (1) | KR100394924B1 (ja) |
CN (1) | CN100589132C (ja) |
DE (1) | DE69939118D1 (ja) |
HK (1) | HK1086372A1 (ja) |
WO (1) | WO2000002171A1 (ja) |
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CN107609354A (zh) * | 2016-07-12 | 2018-01-19 | 厦门简帛信息科技有限公司 | 一种基于元数据的数字资源发售系统及方法 |
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Also Published As
Publication number | Publication date |
---|---|
EP1096443B1 (en) | 2008-07-16 |
US6907407B1 (en) | 2005-06-14 |
CN1317128A (zh) | 2001-10-10 |
HK1086372A1 (en) | 2006-09-15 |
JP3733026B2 (ja) | 2006-01-11 |
KR100394924B1 (ko) | 2003-08-19 |
KR20010053295A (ko) | 2001-06-25 |
DE69939118D1 (de) | 2008-08-28 |
CN100589132C (zh) | 2010-02-10 |
EP1096443A4 (en) | 2001-11-28 |
EP1096443A1 (en) | 2001-05-02 |
US20040093279A1 (en) | 2004-05-13 |
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