WO1998027494A1 - Procede de gestion de document electronique - Google Patents

Procede de gestion de document electronique Download PDF

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Publication number
WO1998027494A1
WO1998027494A1 PCT/JP1996/003692 JP9603692W WO9827494A1 WO 1998027494 A1 WO1998027494 A1 WO 1998027494A1 JP 9603692 W JP9603692 W JP 9603692W WO 9827494 A1 WO9827494 A1 WO 9827494A1
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WO
WIPO (PCT)
Prior art keywords
document
user
copy
display
network
Prior art date
Application number
PCT/JP1996/003692
Other languages
English (en)
Japanese (ja)
Inventor
Hitoshi Nakahara
Chisato Konno
Original Assignee
Hitachi, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi, Ltd. filed Critical Hitachi, Ltd.
Priority to PCT/JP1996/003692 priority Critical patent/WO1998027494A1/fr
Publication of WO1998027494A1 publication Critical patent/WO1998027494A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to a method for copying and / or reusing part or all of digital information distributed electronically and managing users.
  • the first method simply states the existence of copyright and encourages users to use it with respect to copyright. Specifically, there is a method such as "Copyright (c) 1996, ABCDE Inc. J” or the like that is displayed on the display screen or on the floppy disk jacket.
  • the second method is to issue a pass # 1 to the user who purchased the information ⁇ so that a user who does not have the pass # 1 cannot substantially obtain the information.
  • dedicated browsing software is generally required for displaying the information, and the browsing software does not permit copying of part or all of the information.
  • the browsing software and the copyrighted work are written and distributed on CD-R0 ⁇ 1, and a password is separately sent to the user who is permitted to copy, so that the information can be extracted and the method of extracting the information can be obtained.
  • Japanese Patent Application Laid-Open No. 7-239828 there is a method of sending an agent corresponding to viewing software via a network.
  • the third method is to disclose information using dedicated browsing hardware, so that information can only be viewed by users who have purchased the hardware directly.
  • hardware must be manufactured to duplicate the information, which is generally not easy.
  • dedicated browsing software confirms the physical format and displays the information.
  • the fourth method is to distribute the information only on the network and keep the information on the browsing terminal except when the information is being reproduced, so that a copy can be kept at the user's hand. It is to prevent.
  • this method there is information distribution through the World Wide Web (hereinafter referred to as WW).
  • WW World Wide Web
  • this conventional method it is possible to reuse the information part by the link pointer to the information, as is often used on the WWW homepage.
  • this conventional method has a practical ability to freely store the information obtained by the user in the browsing terminal; and a method that does not leave information in the browsing terminal is disclosed in -There is a method as described in 302244.
  • An object of the present invention is to provide a system for electronically distributing a work while using it commercially. (1) A legitimate user can cut out any part of the work as long as the copyright is recognized. (2) to block distribution of unintended copies by the author, and to control the copyright of each copyrighted work and the software program used to control the system To provide Disclosure of the invention
  • At least the document data and the first user of the document data are provided.
  • the method returns the document ownership in the document object.
  • a method of managing electronic documents that are displayed or copied only when the user information is checked and the user is confirmed to be valid is provided.
  • FIG. 1 is an example of an overall configuration diagram for realizing the present invention.
  • FIG. 2 is a diagram illustrating an example of a configuration of a document viewing terminal.
  • FIG. 3 is a diagram showing an example of the configuration of the document management server.
  • FIGS. 4 (a) and 4 (b) are diagrams showing a procedure for displaying a document and a configuration of a billing record file in the document management method according to the present invention.
  • FIGS. 5 (a) and 5 (b) are diagrams showing a procedure for copying a part of a document and a configuration of a copy record file in the document management method according to the present invention.
  • FIG. 6 is a diagram showing a procedure for displaying a copied document by the document management method according to the present invention.
  • FIG. 7 is a diagram showing another embodiment of a procedure for displaying a copied document in the document management method according to the present invention.
  • Figs. 8 (a), (b) and (c) are conceptual diagrams of document objects and diagrams showing the procedures for using the document objects.
  • FIGS. 9 (a) and 9 (b) are diagrams showing operations of a display method included in a document object in the document management method according to the present invention.
  • FIG. 10 is a diagram showing operations of an initialization method and a display method included in the document object in the document management method according to the present invention.
  • FIGS. 11 (a) and 11 (b) are diagrams showing operations of an initialization method and a copy method included in a document object in the document management method according to the present invention.
  • FIG. 12 is a diagram showing the operation of a document object in which a copyrighted work of a different copyright owner is edited by the document management method according to the present invention.
  • FIG. 1 is an example of an overall configuration diagram for realizing the present invention.
  • the document viewing terminal 1 and the document management server 2 are connected by a network 3.
  • a plurality of document viewing terminals 1 exist on the network 3.
  • a plurality of document management servers 2 may exist on the network, but there is only one document management server for one type of document and its copy.
  • One document management server may consist of multiple devices.
  • the document browsing terminal 1 and / or the document management server 2 may be connected to a sub-network 5 separated from the network 3 via a firewall 6.
  • Network 3 may be a wide area network or a local area network.
  • the method of distributing the original information includes a method of sending from the document database file 158 connected to the document distribution server 4 to the document viewing terminal 1 via the network 3 (10), and a method of transmitting via the physical medium such as CD_R0M. Distribution method (11) and a method of receiving by the receiver 7 through broadcasting such as radio waves (12).
  • the network 3 is also connected to a billing management server 9 for electronic billing by banks and credit card companies.
  • FIG. 2 is a diagram showing an example of the configuration of the document viewing terminal 1.
  • the document viewing terminal 1 has at least a screen 20, a central processing unit 21, a main storage device 22, and a network connection device 23 for connecting to the network 3.
  • it may have an auxiliary storage device 24, a replaceable medium drive 25, a graphic dedicated storage device 26, an IC card reader 27, and the like.
  • These auxiliary devices may exist on a network in some cases.
  • it has input devices such as a keyboard 28 and a mouse 29 as needed.
  • the electronic document 100 distributed in the manner shown in FIG.
  • the browsing software 101 is loaded and distributed simultaneously with or separately from the electronic document, and is disclosed to the user by browsing software 101 which is loaded into the main storage device 22 and executed as necessary.
  • the browsing software 101 may be loaded from the network 3 or may be loaded from the auxiliary storage device 24.
  • the electronic document 100 may include, besides text, drawings, etc., multimedia contents such as moving images, sounds, and three-dimensional images, and programs such as a scripting language.
  • FIG. 3 is a diagram showing an example of the configuration of the document management server 2.
  • the document management server 2 has at least an arithmetic device 40, a main storage device 41, an auxiliary storage device 42, and a network connection device 43 for connecting to the network 3.
  • the document management file 159 is stored in the auxiliary storage device 42.
  • the document management file 159 stores a charge record or a copy record of a user of an electronic document managed by the document management server.
  • the document management server 2 may be composed of a plurality of devices connected via a network or the like.
  • the auxiliary storage device 42 may depend on another computer on the network.
  • the document management software 102 In the document management server 2, the document management software 102 always operates in principle, and prepares for requests from users. In this embodiment, it is assumed that charging is performed for information. However, in the case of use for document distribution in a company or the like, charging is not necessarily intended, and only document management may be performed. In this case, the accounting record created in the document management file 159 becomes
  • FIG. 4 (a) is a diagram showing an embodiment of the operation when the browsing software 101 displays the electronic document 100 in the electronic document management method according to the present invention.
  • An IC reader 27 is connected to the document viewing terminal 1.
  • the browsing software 101 operating on the document browsing terminal 1 reads, from the electronic document 100, the server address on the network of the document management server 2 that manages the electronic document and the document ID 211 for identifying the document (400 ).
  • the user is instructed to insert the IC credit card 80 into the IC card reading device 27.
  • the user ID 200 unique to the user is read from the IC card (401). .
  • browsing software 101 A connection to the document management server 2 is made based on the server address (402), a document ID 211 is transmitted, and the document management software 102 receives the verification key 300 randomly generated (403), and receives the verification key 300.
  • the document authentication code 201 of the electronic document 100 is calculated by the method defined in ANSI X9.9 (404).
  • the browsing software 101 transmits the user ID 200 and the document authentication code 201 to the document management software 102 (406).
  • the document management software 102 transmits the document authentication code 202 to the document with the document ID 211 stored in the document management server 2 based on the verification key 300, using the ANSI X9.
  • the calculation is performed by the method defined in 9 (405).
  • the document management software 102 confirms that the document authentication code 201 transmitted from the browsing software 101 (406) matches the document authentication code 202 calculated by the document management software 102 (407). This makes it possible to eliminate a document created illegally or a falsified document.
  • the document management software 102 searches the accounting record file 150 of the document management server 2 for a past accounting record for the received user ID 200 (408). As a result, when the charging of the document ID 211 of the user ID 200 has been completed, the decryption key 301 for decrypting the document is transmitted to the browsing software 101 (409). If the charging has not been completed, a charging protocol is executed between the browsing software 101 and the document management software 102 (410).
  • FIG. 4 (b) shows an example of the format of the accounting record file 150 retrieved or stored in 408 or 411.
  • the billing record file contains information such as user ID, billing range, and billing date for each document. The billing date indicates the viewing date.
  • the electronic document 100 is encrypted, but the information is stored in a format not disclosed to the public. It is not always necessary to encrypt the file if it is stored.
  • the IC credit card 80 owned by the incline is used as the user information.
  • information that can identify a corporation may be used as user information.
  • information that can be easily copied and transferred to another person, such as a simple password or serial number does not achieve sufficient rights protection. It is desirable to use information that is difficult to make and / or transfer.
  • an IC card, a magnetic card, an optical disk, and a magnetic disk with a special format can be used.
  • the card or the like is related to billing, because billing procedures can be performed continuously.
  • the validity of the document 100 requested to be displayed by the browsing software 101 is calculated based on the verification key, but the document ID 211 alone can be used instead. In this case, the work becomes simpler, but the security of the document becomes weaker because the document can be easily forged.
  • the document authentication code is obtained based on the method defined in ANSI X9.9 as a method of authenticating the document.However, a hash function or the like defined in IS0 / IEC 10118-2 is used. You can. In this embodiment, as in the embodiment of FIG. 3, it is assumed that charging for displaying information is performed.
  • FIG. 5 (a) is a diagram showing an embodiment of the operation when the browsing software 101 copies a part of the electronic document 100 in the electronic document management method according to the present invention. It is assumed that the user has already selected and designated a part of the electronic document 100 on the display screen. Therefore, at the time of starting this operation example, the electronic document 100 has already been displayed on the te display of the document viewing terminal, and as shown in the embodiment of FIG. It is assumed that the browsing software 101 has already acquired the user ID 200 used for the display. Similarly, it is assumed that the document management software 102 managing the electronic document 100 has already confirmed the validity of the electronic document.
  • the browsing software sends the document ID 211, the selection range 212, and the user ID 200 to the document management software 102 in order to obtain a copy permission.
  • Send (420).
  • the document management software 102 confirms that the received document ID 211 can be copied (421), randomly generates an encryption key 302 for encrypting the copy (422), and At the same time, the document ID 211 is recorded in the copy record file 151 for the user ID 200 (423).
  • the document management software 102 in the document management server 2 transmits the No. key 302 to the browsing software 101 together with a copy permission (424).
  • the browsing software 101 that has received the encryption key 302 and the duplication permission decrypts the document within the duplication range using the No.
  • the object 103 is saved (426) An example of the format of the duplicate record file 151 saved in the above step 423 is shown in FIG. 5 (b).
  • the copy record file 151 records information such as a copy range, an encryption key, and a copy date for each user.
  • the copy 103 stored in the auxiliary storage device can be generally handled as one file, and can be backed up and copied by ordinary means.
  • the selection range 212 can be specified by a byte position within the document 100 of the selection range, a logical structure block of the document 100 can be specified as a unit, or a physical structure block of the document 100 (such as a page). ) May be specified as a unit.
  • the user can obtain a copy of an arbitrary part of the work, and the copyright holder can manage the user's copy by the server. Since the copy obtained here is not a link, there is no problem such as rewriting the original information.
  • the user can copy a part of the information arbitrarily. However, depending on the setting of the server, it is possible to make a part of the information unreproducible. Also, for example, it is possible to duplicate the entire picture It is possible to control to cut off only part of the force.
  • the encryption key 302 generates a random value for each copy request, but it may be a fixed value for each user or each document. However, in this case, once the No. key has been known, there is a possibility that creation or browsing of an illegal copy may be facilitated.
  • the copy management file 151 shown in the present embodiment may be a file integrated with the accounting record file 150 shown in FIG.
  • FIG. 6 is a diagram showing an embodiment of the operation when the browsing software 101 displays the duplicate document 103 in the electronic document management method according to the present invention.
  • the operation of the present embodiment is almost the same as that of the embodiment for displaying an electronic document shown in FIG.
  • the document authentication code 202 calculated by the document management software 102 is calculated based on the copy range recorded in the copy record file 151.
  • the decryption key 302 for decrypting the duplicate document 151 is the same as the symbol key 302 recorded in the duplicate record file 1.
  • the encryption key and the decryption key are the same, but the encryption key and the decryption key may be different by using an asymmetric encryption method. However, in this case, the operation time required for decoding generally increases. Also, when executing the charging protocol, it is possible to set only the copy portion as the charging target.
  • FIG. 7 is a diagram showing another embodiment of the operation when the browsing software 101 displays the duplicate document 103 in the electronic document management method according to the present invention.
  • the operation in this embodiment is almost the same as that in the embodiment for displaying a duplicate document shown in FIG.
  • the copy browsing is not permitted and the display non-permission is transmitted (414). By doing so, it is possible to prohibit the transfer or disclosure of a partial copy to another person.
  • the server manages not only the original information but also the partial duplicates, so that it can be used in applications where there are many requests for scrapbook creation, such as electronic newspapers.
  • scrapbook creation such as electronic newspapers.
  • the server manages not only the original information but also the partial duplicates, so that it can be used in applications where there are many requests for scrapbook creation, such as electronic newspapers.
  • a document is distributed on an intranet within a company, it is possible for each person to copy and store necessary information and also to prevent leakage of information inside the company to the outside.
  • this embodiment is particularly effective when the document viewing terminal is connected to the server via the network.
  • the display and duplication of information on such recording media is not necessarily managed by a single source. You can't. This is because there is no guarantee that the document browsing terminal that browses the contents (document) of the recording medium is connected to the network. In such a case, the present application manages display and duplication by the document itself. The details will be described below.
  • FIG. Fig. 8 (a) is a conceptual diagram of the object.
  • all data 701 is packaged in a logical structure called object 700, and the data of the object can be handled only through a program element called method 702 provided in the object. I have.
  • the method is prepared for each processing content for the data.
  • a program 703 for executing an object issues an instruction called a message 704 to a method of the object by a user operation 725, and handles data 701 in the object. Since the inside of the object is a black box from the program 703, the internal data 701 cannot be directly input except for the method of the object.
  • FIG. 8 (b) and FIG. 8 (c) are diagrams showing an embodiment of the processing flow when a document object is opened by the object display program.
  • the object display program 710 When the user 717 performs an operation of opening a document object (720), the object display program 710 reads the document object into the memory (470), and first transmits an initialization message 613 to the document object. . Upon receiving the initialization message 613, the initialization method 621 initializes various settings necessary for displaying the document and checks the consistency of the document data. Further, when the document object has a lower hierarchical object, the hierarchical object is loaded and an initialization message is transmitted to the hierarchical object. The hierarchical object also initializes itself, and then transmits an initialization message to lower-level objects. Next, the object display program 710 sends a display message 612 to the document object, indicating that the first page is to be displayed.
  • the display method of the document object 620 displays the first page in response to the message in the specified window.
  • the display message is also transferred to the document object below the hierarchy.
  • the object display program 710 shows the next page and redisplays the document object. Send the notification message 612.
  • the document object displays the document of the corresponding page in the specified window in the same manner as described above. The description will be continued with reference to FIG.
  • the object display program 710 sends an area selection message 615 to the document object.
  • the document object selection method 625 indicates to the user that an area has been selected by, for example, inverting the area specified by the selection message. If an object below the hierarchy is in the selection, the object Also forward the selected message to the subject.
  • the object display program 710 sends a copy message 614 to the document object.
  • the duplication method 622 of the document object first checks whether there is a lower hierarchical object, and if so, forwards a duplicate message to the hierarchical object and receives a duplicate object from the hierarchical object. Next, a copy object including information on the lower-order copy object and its own document is generated (473), and the copy document object is returned to the object display program 710.
  • the object display program 710 sends an end message 616 to the document object.
  • the end method 619 first transfers the end message to the hierarchical object if there is an object lower in the hierarchy, and then ends the work such as releasing the memory area occupied by itself. I do.
  • all the interfaces with the user are performed by the object display program 710, and it is not necessary for the user to perform an operation conscious of the document object.
  • the document object is seen by the user as a single document data file, and does not require special handling as compared with conventional document files.
  • the object document display program performs the interface between the object document and the user, but the operating system of the user terminal may have a function of directly handling the document object.
  • the display message is a message transmitted every time a document is drawn on the screen.
  • the document object 105 has, as shown in FIG. 9 (a), the owner information 220, the display permission flag 221 and the copy permission flag 222 as internal data in addition to the document data 106.
  • the document object is a method for displaying these internal data, such as a display method 620, an initialization method 621, a duplication method 622, a selection method 625, a print method 626, and a billing method 627. Etc.
  • Each method receives the display message 612, initialization message 613, duplicate message 614, selection message 615, etc. sent from the object display program and performs necessary processing.
  • the document data 106 is encrypted, and the object display program is prohibited from directly operating internal data such as the document data 106. It is not essential that the document data be encrypted, but it is preferable that the document data be encrypted in order to prevent unauthorized use without using the method of the document object.
  • FIG. 9 (b) is a diagram showing an embodiment of the operation of the display method when displaying a document object in the electronic document management method according to the present invention.
  • the display method 620 in the document object is executed.
  • the display method 620 first requests the object display program 710 to acquire a user ID (450).
  • the object display program 710 determines whether the user's ID card has been inserted into the user terminal, and if the ID card is not inserted, prompts the user to insert the ID card.
  • the object display program obtains the user ID from the ID card (448) and notifies the display method (449).
  • the owner information 220 recorded in the document object is checked (451), and if the owner information is blank, a connection to the network is made to charge the document object 105.
  • a billing protocol is executed with the managed billing management server 9 (452), and only when the billing protocol succeeds, the user ID received from the object display program is stored as owner information 220. (453), the document data 106 is displayed (455).
  • the display is performed only when the user ID matches the owner information (454), and when it does not match, a message indicating that the display cannot be performed is displayed (456). By doing so, only the first user can use the document data 106.
  • the billing is performed via the network.
  • the document object when the document object is distributed on a physical medium such as a disk. In such a case, it is also possible to charge when the medium is distributed. In this case, if the owner information 220 is blank, a new user is unconditionally recorded and displayed.
  • the user ID acquired by the object display environment 710 is read from the ID key, but it may be a simple pass-through serial number given to the user when purchasing the information.
  • the ID card it is more preferable that the user information, such as credit IC card information, is related to billing, because transfer to another person can be prevented and billing can be performed continuously. Also, in this embodiment, the user is to be authenticated every time the document object 105 receives the display message.
  • the user authentication is performed only when the document object is opened and the first display message is received.
  • it is assumed that information is charged.
  • the purpose is not necessarily charging, and only document management may be performed. In this case, the charging protocol can be omitted.
  • FIG. 10 is a diagram showing an embodiment of the operation of the initialization method and the display method in the electronic document management method according to the present invention.
  • the initialization message is a message that is sent to the document object first each time the document object is opened by the object display program.
  • program control transfers to the initialization method 621.
  • the initialization method 621 first obtains a user ID from the object display program 710 (449). Here, details of how the object display program 710 obtains the user ID are omitted.
  • the owner information 220 recorded in the document object is checked (451), and if the owner information is blank, a connection to the network is made to manage the charge of the document object.
  • a charging protocol is executed with the charging management server 9 (452), and the user ID is stored as the owner information 220 only when the charging protocol is successful (453), and the document object is stored.
  • the display permission flag 221 in 105 is set to permission (457).
  • the owner information 220 is already If the user ID matches the owner information, the display permission flag 221 in the document object is set to allow only when the user ID matches the owner information (457), and if not, the display permission flag 221 is disabled. Set to allow (458).
  • the display method 620 checks the setting of the display permission flag 221 (459), and if the display is permitted, displays the document (455). In the case of permission, an undisplayable error message is displayed (456).
  • FIG. 11 (a) is a diagram showing an embodiment of an operation of a document object initialization method and a copy method in the electronic document management method according to the present invention.
  • the copy message is a message sent when the user instructs the object display program to copy a document in the range selected in advance.
  • program control transfers to initialization method 621.
  • the initialization method 621 first obtains a user ID from the object display program (449).
  • the owner information 220 recorded in the document object is checked (451), and if the owner information is blank, connection to the network is made to manage the charge for the document object.
  • a charging protocol is executed with the charging management server 9 (452), and the user ID is stored as owner information 220 only when the charging protocol is successful (453),
  • the copy permission flag 222 in the document object 105 is set to permission (460). If the owner information 220 is already filled, the display method 620 sets the copy permission flag 222 in the document object 105 to “permitted” only when the user ID matches the owner information (460), If they do not match, the duplication permission flag 222 is set to non-permission (461).
  • the duplication method 622 checks the setting of the above-mentioned duplication permission flag 222 (462), and only when the duplication is permitted, out of the document object's document data 106
  • a duplicate document object 110 having the partial document data 107 in the range where the duplication is specified, the owner information 220 having the same contents as the owner information 220, and the same method set as the document object 110 (first 1 Figure (b)) secures an area in a part of the main memory of the user terminal and saves it, and returns the address of the area to the object display program.
  • the user authentication is performed by the initialization method, but the user authentication may be performed by the copy method.
  • the method included in the duplicate document object 110 is the same as the method included in the document object '; and the duplicate method is not included in order to prohibit creation of a duplicate document.
  • the copy document object 110 may store copy history information for storing a history when a copy of the copy is created. By holding the copy history information, it is also possible to limit the number of times of copying.
  • FIG. 12 is a diagram showing an embodiment of an electronic document management method according to the present invention in which a certain editor collects and edits portions of different works by a plurality of copyright holders and distributes them as a new document. It is. Assume that the original document objects A (ll), B (112), and C (113) are information published by different copyright holders. However, the user of this information shall pay the original copyright holder for the part viewed. When an editor uses all of document object A and part of document objects B and C in his document, he must first use the document object in the manner shown in Figure 11. Make partial copies 114 and 1 15 of Projects B and C.
  • the document objects 111, 114, and 115 are fetched into the own document data 120, and the edited document object 116 is created.
  • the editor's work for performing the above-mentioned editing is basically the same as the conventional ordinary electronic editing of document data, and the editor does not need to be particularly aware of the document object.
  • a display message 612 is sent to the display method 628 of the document object 116.
  • the display method 628 executes the server 13 that manages the accounting of the editor and the accounting protocol 465.
  • the display message 612 is transferred to the display method 629 of the document object A, and the display method 629 charges the author of the document object A.
  • the user does not need to be aware of the copyright holder of the document object and can browse the document in the same way as ordinary document data. In this way, if the author of the original material allows the reuse of the copyrighted work, the original author will be given permission to reprint the edited material in order to create a new work. No need to get. This is because when a user views the reprint, he or she pays the original author.
  • the document object method according to the present invention is very effective when creating a compilation such as a newspaper, which is composed of a large number of material providers.
  • a compilation such as a newspaper, which is composed of a large number of material providers.
  • the advertisement document object is provided with a function of restricting a date on which information can be viewed, registering information of a user who has viewed the information in an advertisement document management server, and obtaining data of a user's preference survey.
  • the electronic document management method provides electronic publishing that sells information electronically recorded on a recording medium such as a CD-ROM or a floppy disk, and edits the contents of the electronic publishing. This is useful as a technique to prevent the distribution and reuse of illegal copies when selling new compilations. It is also suitable for managing and effectively using electronic information obtained through networks.
  • the present invention makes it possible to prevent the distribution or reuse of illegal copies, and to promote the electronic distribution of commercially available information and / or confidential information within a company. Become.

Abstract

Procédé de mise en réserve privée d'une partie arbitraire d'un travail, ou d'intégration libre de ladite partie dans un travail personnel, en envisageant une protection du droit d'auteur. Lorsqu'un logiciel de lecture fonctionnant sur un terminal relié à un réseau affiche ou copie un document électronique, l'information de ce document et l'information de l'utilisateur sont transmises à un serveur de gestion document qui gère le document électronique pour demander une autorisation d'affichage ou de copie. Le serveur donne cette autorisation lorsqu'une condition prédéterminée est remplie. Aux fins de l'invention, on constitue un document (objet-document) à l'aide de données de document, formations concernant l'auteur du document, d'un procédé d'affichage et d'un procédé de copie. Lorsque l'objet-document reçoit le message d'affichage ou de copie, on examine les informations concernant l'auteur du document à l'intérieur de cet objet-document; la reconnaissance de l'utilisateur comme utilisateur légitime conditionne alors l'affichage ou la copie. Il est donc possible d'éviter la distribution de copies non souhaitée par l'auteur, tout en autorisant la réutilisation du travail par des utilisateurs, et de promouvoir la diffusion électronique d'informations utiles.
PCT/JP1996/003692 1996-12-18 1996-12-18 Procede de gestion de document electronique WO1998027494A1 (fr)

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PCT/JP1996/003692 WO1998027494A1 (fr) 1996-12-18 1996-12-18 Procede de gestion de document electronique

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Cited By (9)

* Cited by examiner, † Cited by third party
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JP2001256360A (ja) * 2000-03-14 2001-09-21 Shuichi Otsu 電子書庫システム及び電子出版システム
JP2002541594A (ja) * 1999-04-13 2002-12-03 ディスカバリー・コミニュケーションズ・インコーポレーテッド 電子書籍の代替的配送システム
JP2002541595A (ja) * 1999-04-13 2002-12-03 ディスカバリー・コミニュケーションズ・インコーポレーテッド 電子書籍の代替的配送方法
JP2006079569A (ja) * 2004-09-06 2006-03-23 Hidetoshi Hara ライセンスを管理できるメディア配布システム。
JP2006237881A (ja) * 2005-02-23 2006-09-07 Ntt Docomo Inc 携帯情報端末およびデータ保護方法
JP2008123411A (ja) * 2006-11-15 2008-05-29 Fujitsu Ltd 文書複写・移動方法および文書複写・移動プログラム
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book
US9099097B2 (en) 1999-06-25 2015-08-04 Adrea, LLC Electronic book with voice emulation features
US11863615B2 (en) 2022-03-18 2024-01-02 T-Mobile Usa, Inc. Content management systems providing zero recovery time objective

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JPH07239828A (ja) * 1994-01-27 1995-09-12 At & T Corp 電子出版文書を保護する方法
JPH07297818A (ja) * 1994-04-25 1995-11-10 Nippon Telegr & Teleph Corp <Ntt> ディジタル情報通信システム及びその方法
JPH07295798A (ja) * 1994-04-25 1995-11-10 Internatl Business Mach Corp <Ibm> ソフトウェア・オブジェクトの配布を可能にするための方法および装置
JPH08185448A (ja) * 1994-09-30 1996-07-16 Mitsubishi Corp データ著作権管理システム及びデータ著作権管理装置

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JPH07239828A (ja) * 1994-01-27 1995-09-12 At & T Corp 電子出版文書を保護する方法
JPH07297818A (ja) * 1994-04-25 1995-11-10 Nippon Telegr & Teleph Corp <Ntt> ディジタル情報通信システム及びその方法
JPH07295798A (ja) * 1994-04-25 1995-11-10 Internatl Business Mach Corp <Ibm> ソフトウェア・オブジェクトの配布を可能にするための方法および装置
JPH08185448A (ja) * 1994-09-30 1996-07-16 Mitsubishi Corp データ著作権管理システム及びデータ著作権管理装置

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book
JP2002541594A (ja) * 1999-04-13 2002-12-03 ディスカバリー・コミニュケーションズ・インコーポレーテッド 電子書籍の代替的配送システム
JP2002541595A (ja) * 1999-04-13 2002-12-03 ディスカバリー・コミニュケーションズ・インコーポレーテッド 電子書籍の代替的配送方法
US9099097B2 (en) 1999-06-25 2015-08-04 Adrea, LLC Electronic book with voice emulation features
JP2001256360A (ja) * 2000-03-14 2001-09-21 Shuichi Otsu 電子書庫システム及び電子出版システム
JP2006079569A (ja) * 2004-09-06 2006-03-23 Hidetoshi Hara ライセンスを管理できるメディア配布システム。
JP2006237881A (ja) * 2005-02-23 2006-09-07 Ntt Docomo Inc 携帯情報端末およびデータ保護方法
US7921305B2 (en) 2005-02-23 2011-04-05 Ntt Docomo, Inc. Portable information terminal and data protecting method
JP2008123411A (ja) * 2006-11-15 2008-05-29 Fujitsu Ltd 文書複写・移動方法および文書複写・移動プログラム
US11863615B2 (en) 2022-03-18 2024-01-02 T-Mobile Usa, Inc. Content management systems providing zero recovery time objective

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