KR102238011B1 - Ebook DRM system and service method to share electronic annotations - Google Patents

Abstract

The present invention relates to an e-book DRM system having an annotation sharing function and a service method thereof and, more specifically, to an e-book DRM system having an annotation sharing function capable of supporting a function of sharing annotations, written by selecting some pages of the body of an e-book, between users, and a service method thereof. The present invention has effects of providing convenience in annotation sharing for a mutual information exchange or a discussion about an e-book by supporting a function of sharing annotations added to the e-book between a plurality of different users, while easily preventing an infringement of the copyright of the e-book from occurring during annotation sharing by supporting a function of allowing a specific user to check content about a specific area of the e-book related with the annotations only when the user has a right for reading the e-book by checking whether the specific user has the right for reading the e-book in regard to the specific area of the e-book related with the annotations which are to check by the specific user.

Description

Ebook DRM system and service method to share electronic annotations}

The present invention relates to an e-book DRM system and a service method capable of sharing annotations, and in more detail, an e-book DRM system capable of sharing annotations that supports sharing of written annotations by selecting a part of the e-book text, and It is about the service method.

Currently, an e-book service system that provides online e-books is provided, and such a system selects a specific part of the e-book stored in the terminal and creates a comment corresponding to that specific part. When reading a book, it is supported so that it can be checked by matching a specific part.

In addition, recently, a service attempt has been made in an e-book service system to support a user to share an annotation on a specific part of an e-book with other users.

However, in the existing e-book service system, it is common to extract a specific part selected from the e-book for annotation insertion and then store it separately from the e-book together with the annotation, and this may cause copyright problems in part of the e-book. In addition to the high possibility, a separate device for storing such annotations is required, and thus there is a problem in that the cost burden and system efficiency are deteriorated according to the configuration of the device.

In other words, if copyright exists in the e-book subject to annotation, the content selected in the e-book for annotation is shared when sharing the annotation and disclosed to the general public without permission, so a copyright infringement problem occurs. In the case of, there is a problem that it is difficult to use as an object for sharing comments.

In addition, if a part of the selected e-book is not a text set based on a two-dimensional space, but a resource set based on time such as music or video, storing the selected area separately includes deterioration of the performance of the e-book service system. As a result, inefficiency due to redundant storage also occurs.

Korean Patent Registration No. 10-1397562

The present invention supports to select a specific area of an encrypted e-book that exists in the form of a package and matches the specific area to share the generated annotations among users, but a user who wants to view the contents of the shared annotation can be added to the e-book. If you have access rights to the e-book, it extracts a specific area from the e-book and provides it to be checked with comments, and if you do not have access rights, only the comments are provided so that the copyright of the e-book is completely protected and the comments of the e-book are shared. Its purpose is to increase user convenience for.

An e-book DRM system capable of sharing annotations according to an embodiment of the present invention is configured in a user terminal to view an e-book as a content, and selected from specific resources included in the e-book based on a user input through the user terminal. Generates annotation information corresponding to a specific area, communicates with an application unit for transmitting the annotation information when requesting to share the annotation information and an application unit of the user terminal through a communication network, and transmits the e-book to the application unit, When receiving the annotation information to be shared in correspondence with the e-book, area identification information for a specific area of the e-book matching the annotation information, bulletin board information including the annotation information, and a connection address for accessing the bulletin board information Generates and stores bulletin board identification information including, and when the application unit views the specific resource, transmits the bulletin board identification information to the application unit so that the bulletin board identification information is set in the e-book in response to the specific resource. When receiving selection information for the bulletin board identification information set in the e-book from the application unit, the bulletin board information is transmitted to the user terminal, but when the user terminal displays the bulletin board information, through communication with the application unit It may include a service server that checks the user's right to read the e-book corresponding to the user terminal and selectively displays the specific area according to the existence of the right to read.

As an example related to the present invention, when the application unit displays the bulletin board information through the user terminal, the service server transmits the specific area to the user terminal in an encrypted state, and communicates with the application unit. Through the user's permission to read the e-book, when the permission exists, the specific area in the encrypted state is decrypted and displayed through the application unit of the user terminal.

As an example related to the present invention, the specific resource may be any one of text, image, sound, and video.

As an example related to the present invention, the service server is a license corresponding to the e-book so that the application unit decrypts the encrypted specific area included in the bulletin board information when the application unit has the right to read according to the existence of the right to read. When the bulletin board information is displayed on the user terminal by transmitting information, the specific area is displayed based on the license information, and when the bulletin board information is displayed when there is no permission to view, the encrypted specific area is the user terminal. It may be characterized in that the license information is not transmitted to the user terminal so that it is not displayed in.

As an example related to the present invention, when the bulletin board information is displayed on the user terminal, the service server may provide the area identification information based on the user information received from the application unit of the user terminal and the area identification information of the specific area. After transmitting the encrypted specific area of the corresponding e-book to the application unit of the user terminal, and confirming the access rights for the e-book corresponding to the area identification information based on the user's member information matched with the user information When there is a right to read the e-book, the license information of the e-book is transmitted to the application unit of the user terminal, and the application unit includes area identification information of the specific area included in the bulletin board information when displaying the bulletin board information, and The user information is transmitted to the service server, and when the license information is received in response to the user information, the encrypted specific area of the e-book received from the service server is corresponding to the area identification information based on the license information. When displaying the bulletin board information after decoding, the specific area may be displayed together.

As an example related to the present invention, when a comment is added to the bulletin board information based on a user input, the application unit transmits comment information on the comment to the service server, and the service server is the pre-stored corresponding to the comment information. The bulletin board information may be updated by including the comment information received from the application unit in the bulletin board information.

As an example related to the present invention, the application unit may include identification information of another bulletin board set in another e-book different from the e-book according to a user input as link information in the comment information.

As an example related to the present invention, the service server transmits the other bulletin board information to a specific terminal accessing other bulletin board information corresponding to the link information based on the link information, and the application unit and the communication network configured in the specific terminal The other bulletin board information when the other bulletin board information is displayed on the specific terminal according to whether or not the other bulletin board information is displayed by determining the reading permission of the other e-book corresponding to the other bulletin board information for a specific user of the specific terminal through communication through It may be characterized in that the selection area of the other e-book included in is selectively decoded and displayed.

An e-book DRM service method capable of transmitting an e-book to a user terminal through a communication network according to an embodiment of the present invention and allowing annotations to be shared between an application unit configured in a user terminal for viewing the e-book and a service server communicating through the communication network And receiving, by the service server, annotation information generated in correspondence with a specific area selected from a specific resource included in the e-book based on a user input from the application unit, and when the service server receives the annotation information, the annotation Generating and storing bulletin board identification information including area identification information for a specific area of the e-book matched with information, bulletin board information including the annotation information, and an access address for accessing the bulletin board information, and the The service server communicating with the application unit to transmit the bulletin board identification information to the application unit when the application unit reads the specific resource so that the bulletin board identification information is set in the e-book corresponding to the specific resource, and the When the service server receives selection information for the bulletin board identification information set in the e-book from the application unit, it transmits the bulletin board information to the user terminal, but communicates with the application unit when the user terminal displays the bulletin board information And checking a user's right to read the e-book by a user corresponding to the user terminal, and selectively displaying the specific area according to the existence of the right to read the e-book.

The present invention supports the sharing of annotations added to an e-book between a plurality of different users, providing convenience for sharing annotations for mutual information exchange or discussion on e-books, and Share comments by checking whether the specific user has the right to read the e-book for a specific area of the related e-book, and supports checking the contents of the specific area of the e-book related to the annotation only if the user has the right to read the e-book. There is an effect of easily preventing copyright infringement of e-books that may occur in the city.

In addition, the present invention provides the service server without the need to download the entire encrypted e-book to view the dependent content and the specific annotation related to the region selected to create a specific annotation in the e-book, even if the user has the right to view the e-book. By extracting only the dependent content for the selected area related to the specific annotation from the existing encrypted e-book and transmitting it to the user terminal for display, there is an effect of enhancing user convenience for confirming the annotation.

In addition, the present invention not only supports sharing of annotations through e-books between users, but also supports other users to add comments to specific user's comments, as well as adding links to other comments in comments of specific comments. By enabling the user to easily check other annotations related to a specific annotation, it is effective to increase user convenience in exchanging information and conducting discussions between users regarding annotations.

In addition, the present invention has the effect of improving the efficiency and convenience of copyright protection of the e-book because it is possible to completely protect the copyright for the selected area of the e-book shared together when sharing such annotations and comments. have.

1 is a block diagram of an e-book DRM system capable of sharing annotations according to an embodiment of the present invention.
2 and 3 are detailed configuration diagrams of an e-book DRM system capable of sharing annotations according to an embodiment of the present invention and an exemplary view of an operation related to annotation sharing.
4 and 5 are diagrams illustrating an operation related to sharing comments and comments of an e-book DRM system capable of sharing comments according to an embodiment of the present invention.
6 is a flowchart of a method for an e-book DRM service capable of sharing annotations according to an embodiment of the present invention.

Hereinafter, detailed embodiments of the present invention will be described with reference to the drawings.

1 is a block diagram of an e-book DRM system capable of sharing annotations according to an embodiment of the present invention.

As shown, the e-book DRM system capable of sharing annotations is configured in the service server 200 and the user terminal 100 to communicate with the user terminal 100 through a communication network to communicate with the service server 200. For example, it may include an application unit 110 that is a control unit in a state in which an application stored in advance is executed.

In this case, the user terminal may include various terminals such as a smart phone, a mobile communication terminal, a PC, and a notebook.

In addition, the service server 200 may include an e-book DB 201 storing a plurality of different e-books, and the application unit 110 of the user terminal 100 communicates with the user terminal 100. ), the e-book requested by the application unit 110 may be transmitted.

At this time, the e-book stored in the e-book DB 201 may be stored in an encrypted state for copyright protection.

In addition, communication with the service server 200 of the application unit 110 described in the present invention may be performed through a communication unit configured in the user terminal 100.

In addition, the user terminal 100 may include an input unit for receiving a user input, a communication unit for communication with the service server 200, a storage unit for storing various information, a display unit for displaying various information, and the like. , The configuration unit configured in the user terminal 100 may be controlled by the control unit configured in the user terminal 100.

In this case, the control unit may include RAM, ROM, CPU, GPU, and bus, and RAM, ROM, CPU, GPU, and the like may be connected to each other through a bus.

In addition, the e-book described in the present invention may be content.

In addition, the communication network described in the present invention may include a wired or wireless communication network, and examples of such wireless communication networks include Wireless LAN (WLAN), Digital Living Network Alliance (DLNA), Wireless Broadband: Wibro, and WiMAX. World Interoperability for Microwave Access: Wimax), Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (EV-DO) ), WCDMA (Wideband CDMA), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), IEEE 802.16, Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A) , Wireless Mobile Broadband Service (WMBS), 5G mobile communication service, Bluetooth, LoRa (Long Range), RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB ( Ultra Wideband), ZigBee, Near Field Communication (NFC), Ultra Sound Communication (USC), Visible Light Communication (VLC), Wi-Fi, Wi-Fi Direct (Wi-Fi Direct), etc. may be included. In addition, wired communication networks include wired LAN (Local Area Network), wired WAN (Wide Area Network), power line communication (PLC), USB communication, Ethernet, serial communication, optical/coaxial Cables, etc. may be included.

A detailed operation configuration of an e-book DRM system capable of sharing annotations according to an embodiment of the present invention based on the above-described configuration will be described below with reference to the drawings.

First, the application unit 110 configured in the user terminal 100 browses the e-book as content, and a specific area selected from specific resources included in the e-book based on a user input through the user terminal 100 Annotation related annotation information may be generated in response to the user input, and the annotation information may be transmitted to the service server 200 when a request for sharing the annotation information is requested according to the user input.

In this case, the specific region described in the present invention may be configured as a partial resource constituting a part of a specific resource, and the partial resource may be composed of any one of text, image (or play), sound, and video.

In addition, the service server 200 communicates with the application unit 110 of the user terminal 100 through a communication network, and may transmit the e-book to the application unit 110.

In addition, the service server 200 corresponds to the e-book, when receiving the annotation information to be shared, in the e-book matched with the annotation information, region identification information for the specific region selected in response to the annotation according to the annotation information And bulletin board information including the annotation information may be generated and stored in the annotation DB 203 included in the service server 200.

In this case, the specific area may be configured as a resource of the e-book in an encrypted state.

In addition, the annotation DB 203 may be included in the e-book DB 201 or may be configured as a separate DB.

In addition, the service server 200 may match the bulletin board identification information including an access address for accessing the bulletin board information with the specific area included in the electronic book and set in the e-book.

In addition, when the service server 200 receives selection information for the bulletin board identification information set in the e-book from the application unit 110 of the user terminal 100, the bulletin board information corresponding to the bulletin board identification information is sent to the user terminal. The user terminal 100 is transmitted to 100, but when the application unit 110 displays the bulletin board information through the display unit of the user terminal 100 by communicating with the application unit 110 of the user terminal 100. ) Of the user corresponding to) may be checked so that the specific area is selectively displayed according to the existence of the reading authority.

For example, when the application unit 110 displays the bulletin board information, the service server 200 transmits the specific area to the user terminal 100 in an encrypted state through communication with the application unit 110 And, by checking the user's right to read the e-book, when the right to read exists, the specific area in the encrypted state can be decrypted and displayed through the application unit 110 of the user terminal 100. have.

That is, when the service server 200 communicates with the application unit 110 to display the bulletin board information on the user terminal 100, the encrypted The specific region in the encrypted state corresponding to the region identification information is extracted from the e-book in the state and transmitted to the user terminal 100 so that the specific region in the encrypted state is included in the bulletin board information together with the bulletin board information. The specific area in the encrypted state can be displayed in the encrypted state only when the user has the right to read the e-book by checking the user's permission through communication with the application unit 110. It is decoded through 110 so that the content of the specific area can be displayed through the display unit of the user terminal 100 in a state in which the user can check.

The operation configuration of the application unit 110 and the service server 200 described above will be described with reference to the examples of FIGS. 2 to 3.

First, as shown in FIGS. 2 and 3, the application unit 110 may include an e-book reading module 111, a comment generation module 112, and a comment display module 113.

The e-book reading module 111 (or e-book viewer) of the application unit 110 connects to the e-book providing unit 210 of the service server 200 and the e-book providing unit 210 An e-book selected by a user among a plurality of e-books to be provided may be received from the e-book providing unit 210.

At this time, the e-book providing unit 210 of the service server 200 communicates with the application unit 110 of the user terminal 100 to determine the user's access right to the e-book selected by the user, and provides the user with The e-book selected by the user can be transmitted to the user terminal 100 only when there is an access right.

In addition, the e-book reading module 111 may request license information for the e-book selected by the user from the service server 200, and based on the license information received from the service server 200 according to the request. The encrypted e-book received from the e-book providing unit 210 may be decrypted and displayed through the display unit of the user terminal 100.

Meanwhile, the annotation generating module 112 included in the application unit 110 is a specific resource among resources constituting the e-book based on a user input received through the input unit of the user terminal 100. Annotation information may be generated corresponding to a specific area selected by the user of.

For example, the annotation generating module 112 designates a specific paragraph of the e-book or a specific frame of an image included in the e-book as the specific region based on a user input, and corresponds to the specific region to input a user An annotation information including annotation data may be generated based on.

In addition, the annotation generating module 112 may generate the annotation information through a display window in which the e-book is displayed and a separate input window, and a preset button (public button) for sharing the annotation information in the input window When) is selected according to a user input, the annotation information may be transmitted to the service server 200 through a communication unit of the user terminal 100.

In this case, the resources constituting the e-book may include text, images, sounds, moving pictures, frame structures, page types, and the number of pages.

In addition, the annotation generating module 112 may store the annotation information in a storage unit of the user terminal 100 that is a local storage of the user terminal 100.

In addition, the annotation information includes e-book identification information of an e-book including the specific region corresponding to the annotation information, resource identification information of a specific resource corresponding to the specific region, region information of the specific region, and Annotation data generated corresponding to a specific area may be included.

In this case, as an example of the region information, it may be generated by a combination of a css selector, a dom range, and a Canonical Fragment Identifier (CFI) standard in the W3C.

In addition, when the selected specific area is not text such as a video or image, the area information is at least one of spatial information for the selected space and temporal information (or time domain information) for the selected space in the W3C Media Fragment URI method. It may include.

In addition, the service server 200 may include an e-book providing unit 210, a license issuing unit 220, and an annotation sharing unit 230.

In this case, the e-book providing unit 210, the license issuing unit 220, and the annotation sharing unit 230 may each be configured as separate individual servers.

The e-book providing unit 210 may transmit data related to the e-book selected by the user from the e-book DB 201 in which a plurality of e-books are stored to the application unit 110 of the user terminal 100, and the e-book Each of the plurality of e-books stored in the DB 201 may be stored in the e-book DB 201 in an encrypted state.

In addition, the annotation sharing unit 230 may receive annotation information generated by the application unit 110 of the user terminal 100 from the user terminal 100.

In addition, when the annotation information is received, the annotation sharing unit 230 identifies a region for identification of the specific region matching the annotation information based on the e-book identification information, resource identification information, and region information included in the annotation information. Can generate information.

In addition, the annotation sharing unit 230 may generate bulletin board information including the region identification information and the annotation information.

At this time, the annotation sharing unit 230 matches the annotation according to the annotation information generated by the user to be shared, so that other users can add a comment, a posting area in which a specific area of the e-book is posted and an annotation of the annotation information. Bulletin board information in the form of a bulletin board including annotations according to data can be generated.

Here, the annotation sharing unit 230 may generate the bulletin board information in the form of a web page based on Hypertext Markup Language (HTML).

In addition, the annotation sharing unit 230 may store bulletin board information generated based on the annotation information in the annotation DB 203.

In addition, the annotation sharing unit 230 may generate an access address for accessing the bulletin board information stored in the annotation DB 203, and may provide bulletin board identification information including the access address for accessing the bulletin board information. Can be generated.

In this case, the annotation sharing unit 230 may include the area identification information in the bulletin board identification information.

In addition, the annotation sharing unit 230 generates a hash value by applying the e-book identification information, resource identification information, and region information to a preset hash algorithm, and the bulletin board information including the hash value. By creating an access address for the bulletin board, it is possible to increase the security of the bulletin board information.

For example, the annotation sharing unit 230 includes an e-book ID that is the e-book identification information included in the annotation information, and a resource ID that is resource identification information of the specific resource included in the annotation information and constituting the e-book. And, it is possible to generate H, which is a hash value obtained by applying a css selector and DOM range info according to the region information included in the annotation information to the hash algorithm, and including the hash value for accessing the bulletin board information. After creating an access address such as pub_anno_id = https://public.anno,server.url/H, bulletin board identification information including the access address may be generated.

In addition, the annotation sharing unit 230 may match the bulletin board identification information with the corresponding bulletin board information and store it in the annotation DB 203.

On the other hand, the annotation display module 113 constituting the application unit 110 of the user terminal 100 corresponds to a specific area of the specific resource constituting the e-book by interworking with the e-book reading module 111 When viewing the e-book in which the bulletin board information is generated, reading information, which is annotation request information for requesting annotations related to a resource retrieved from the e-book, may be generated and transmitted to the service server 200.

For example, when the resource read in the e-book is a specific page of the e-book corresponding to the specific resource based on a user input by the e-book reading module 111, the annotation display module 113 Annotation sharing of the service server 200 by generating browsing information including e-book identification information (e.g., e-book ID) for a book and resource identification information (e.g., resource ID or page identifier) of the specific resource It can be transmitted to the unit 230.

In addition, the annotation sharing unit 230 of the service server 200 searches the annotation DB 203 based on the reading information when receiving the reading information, and retrieves the e-book identification information and resource identification information according to the reading information. One or more bulletin board information included may be checked, and bulletin board identification information matched for each of the one or more bulletin board information checked corresponding to the browsing information may be extracted from the annotation DB 203.

That is, the annotation sharing unit 230 may extract the bulletin board identification information matched by one or more bulletin board information matching the browsing information from the annotation DB 203.

In addition, the annotation sharing unit 230 may transmit one or more bulletin board identification information extracted from the annotation DB 203 corresponding to the browsing information to the user terminal 100.

In addition, as shown in FIG. 3, the annotation display module 113 of the application unit 110 interlocks with the e-book reading module 111 when receiving the one or more bulletin board identification information to the user terminal 100. In a specific page that is a resource of an e-book displayed through the display unit of the user terminal 100 by the e-book reading module 111, an area that matches the bulletin board identification information for each of the one or more bulletin board identification information is identified, and then Correspondingly, it is possible to set the bulletin board identification information.

At this time, the annotation display module 113 interlocks with the e-book reading module 111 to generate the bulletin board identification information as a preset mark, and then corresponds the mark to an area matched with the bulletin board identification information. It can be set and displayed on the specific page of.

In the above-described configuration, the annotation sharing unit 230 of the service server 200 stores the annotation information according to one or more bulletin board information identified in the annotation DB 203 in correspondence with the browsing information received from the user terminal 100. After extraction, list information on an annotation list may be generated based on at least one extracted annotation information corresponding to the browsing information, and the list information may be transmitted to the application unit 110 of the user terminal 100.

In this case, some of the annotation data according to the annotation information and the region identification information matched with the annotation information may be mutually matched and set in the list information.

In addition, the annotation sharing unit 230 checks the number of comments according to the comment information included in the bulletin board information for each of one or more bulletin board information identified in correspondence with the browsing information, and comments for each comment information included in the list information. The number of can be matched and included in the list information.

Accordingly, the annotation display module 113 may display the list information in a predetermined partial area of a specific page viewed by the user terminal 100 in conjunction with the e-book reading module 111.

At this time, the annotation display module 113 interlocks with the e-book reading module 111 to move to a specific paragraph of a specific page corresponding to the specific annotation data when specific annotation data from the list information is selected according to a user input. A specific paragraph corresponding to the annotation data can be displayed.

Alternatively, when the list information includes one or more annotation data and area identification information associated with a specific table of contents to which a specific page corresponding to the browsing information belongs, the specific annotation data is selected from the list information. You can also display the page by moving to the page corresponding to the annotation data.

On the other hand, the annotation display module 113 of the application unit 110 identifies a bulletin board corresponding to the mark selected according to the user input when a mark corresponding to the bulletin board identification information displayed on a specific resource of the e-book is selected according to a user input. Selection information including information may be generated and transmitted to the annotation sharing unit 230 of the service server 200.

Alternatively, the annotation display module 113 may generate selection information for accessing to an access address according to the bulletin board identification information selected according to a user input and transmit it to the annotation sharing unit 230 of the service server 200.

At this time, the annotation display module 113 of the application unit 110 executes a web browser based on the web browser related data previously stored in the storage unit of the user terminal 100 when the bulletin board identification information (or mark) is selected. , Through the web browser, access to the access address according to the bulletin board identification information of the service server 200 and transfer the selection information to the service server 200 (or the annotation sharing unit 230 of the service server 200). Can be transmitted.

In addition, when receiving the selection information, the annotation sharing unit 230 of the service server 200 identifies bulletin board information corresponding to the selection information in the annotation DB 203, and identifies the bulletin board information to the user terminal 100. It can be transmitted to the application unit 110 of.

In addition, the annotation display module 113 configured in the application unit 110 of the user terminal 100 that has received the bulletin board information may display the bulletin board information.

In this case, the annotation display module 113 may display the bulletin board information through the web browser.

On the other hand, the service server 200 is based on the user information received from the application unit 110 of the user terminal 100 and the area identification information of the specific area when the bulletin board information is displayed on the user terminal 100. The encrypted specific area of the e-book corresponding to the area identification information is transmitted to the application unit 110 of the user terminal 100, and the area is identified based on the user's member information matched with the user information. After checking the right to read the e-book corresponding to the information, if there is a right to read the e-book, the license information of the e-book is transmitted to the application unit 110 of the user terminal 100, and the application unit ( 110) transmits the area identification information and the user information of the specific area included in the bulletin board information to the service server 200 when displaying the bulletin board information, and when receiving the license information corresponding to the user information, the It can be configured to display the specific area when displaying the bulletin board information after decrypting the encrypted specific area of the e-book received from the service server 200 in correspondence with the area identification information based on the license information. There is, it will be described in detail.

When the annotation display module 113 of the application unit 110 receives the bulletin board information and displays the bulletin board information through the display of the user terminal 100, the area identification information included in the bulletin board information is provided to the service. It may be transmitted to the e-book providing unit 210 of the server 200.

Accordingly, the e-book providing unit 210 extracts an encrypted specific area of the e-book corresponding to the area identification information from the e-book corresponding to the area identification information, and then the application unit 110 of the user terminal 100 ).

In this case, the e-book providing unit 210 is an encrypted specific area of the e-book corresponding to the area identification information and may extract partial resources constituting a part of the specific resource from the e-book. When the resource is a video, a specific frame corresponding to the region identification information among a plurality of frames constituting the video is extracted from the e-book as the partial resource, and the specific frame in an encrypted state is transmitted to the user terminal 100 I can.

Through this, the application unit 110 of the user terminal 100 receives and downloads an encrypted specific area (partial resource) corresponding to the area identification information included in the bulletin board information from the e-book providing unit 210 It is possible to include the encrypted specific area received from the e-book providing unit 210 in the bulletin board information (or bulletin board information posting area) so that the specific area (partial resource) is in an encrypted state in which the contents cannot be verified. The bulletin board information included as may be displayed.

In addition, when the annotation display module 113 receives the bulletin board information and displays the bulletin board information through the display unit of the user terminal 100, the e-book being viewed in the user terminal 100 included in the bulletin board information In order to check the access rights for a specific area of the service server 200, license request information for requesting a license required for reading the e-book may be generated and transmitted to the license issuing unit 220 of the service server 200.

In this case, the license request information may include user information of a user and e-book identification information extracted from the bulletin board information.

In addition, the license issuing unit 220 of the service server 200 searches the member DB 202 included in the service server 200 and matches the user information based on the user information included in the license request information. Alternatively, it may be determined whether member information including the user information exists in the member DB 202, and corresponding member information may be identified.

In this case, the member information may include user information and e-book identification information for each e-book that corresponds to the user and is authorized to read.

In addition, the user information may be log in information.

In addition, the license issuing unit 220 includes member information corresponding to the user information included in the license request information in the member DB 202, and the e-book identification information included in the license request information is the license request information. If the user has the right to read the e-book corresponding to the license request information included in the member information identified in response to (identified), it is issued to the user in response to the e-book (in relation to the e-book) The previously stored license information may be transmitted to the application unit 110 of the user terminal 100.

In this case, the license issuing unit 220 may extract license information corresponding to the e-book identification information included in the license request information from the member DB 202 and transmit it to the application unit 110.

In addition, the license issuing unit 220 may issue the license information to a user with a right to read the e-book based on Digital Rights Management (DRM).

Meanwhile, the annotation display module 113 configured in the application unit 110 of the user terminal 100 is corresponding to the license request information and is received from the annotation sharing unit 230 of the service server 200 when the license information is received. An encrypted specific area included in the registered bulletin board information may be decrypted based on the license information.

In addition, the annotation display module 113 is converted to a state in which the contents can be checked upon successful decryption based on the license information for the encrypted specific area included in the bulletin board information and the annotation according to the annotation information Bulletin board information including data can be displayed.

Through this, the service server 200 corresponds to the e-book so that the application unit 110 decrypts the encrypted specific area included in the bulletin board information when the application unit 110 has the right to read according to the existence of the right to read. When the user terminal 100 displays the bulletin board information by transmitting license information, the specific area is displayed based on the license information, and if there is no permission to read, the encrypted specific area when the bulletin board information is displayed The license information may not be transmitted to the user terminal 100 so that it is not displayed on the user terminal 100.

That is, the application unit 110 and the service server 200 of the user terminal 100 encrypt a specific e-book corresponding to the specific annotation in bulletin board information related to a specific annotation selected by the user through mutual communication. When the user has the right to read the specific e-book for the specified area, the specific area is decoded and the bulletin board information is displayed so that the user can check the contents of the specific area. If there is no permission to read, the specific area may be kept in an encrypted state to display bulletin board information in which the contents of the specific area cannot be checked.

In addition, in the above-described configuration, the annotation display module 113 of the application unit 110 receives the bulletin board information and displays the bulletin board information through the display unit of the user terminal 100. The area identification information and the license request information may be generated and transmitted to the e-book providing unit 210 of the service server 200.

Accordingly, the e-book providing unit 210 may extract an encrypted specific region of the e-book corresponding to the region identification information from the e-book corresponding to the region identification information.

In addition, the e-book providing unit 210 provides the license request information to the license issuing unit 220, and based on the license request information from the license issuing unit 220, the electronic The license information may be transmitted to the e-book providing unit 210 by checking the right to read the book, and if there is a right to read.

Through this, the e-book providing unit 210 decrypts the encrypted specific area extracted from the e-book in response to the area identification information received from the user terminal 100 based on the license information, and decrypts the A specific area may be provided to the application unit 110 of the user terminal 100.

Through this, the annotation display module 113 included in the application unit 110 of the user terminal 100 displays a decoded specific area corresponding to the area identification information of the bulletin board information from the e-book providing unit 210. It is possible to receive and download, and display the bulletin board information included in a state in which the specific region can check the contents by including the decoded specific region received from the e-book providing unit 210 in the bulletin board information. .

That is, if there is a security problem for decryption in the web browser of the user terminal 100, the service server 200 checks the user's permission to read the e-book and then performs the decryption process instead of the user terminal 100. May be.

Through this, the present invention supports a plurality of different users to share the annotations added to the e-book with each other, providing convenience for mutual information exchange for e-books or sharing annotations for discussion, and confirmation of a specific user. By checking whether the specific user has the right to read the e-book for a specific area of the e-book associated with the target annotation, it supports to check the contents of a specific area of the e-book related to the annotation only if the user has the right to read. It is possible to easily prevent copyright infringement of e-books that may occur when sharing comments.

In addition, the present invention does not require downloading the entire encrypted e-book to view the specific annotation and dependent content related to the region selected to create a specific annotation in the e-book, even if the user has the right to view the e-book, the service server ( User convenience for checking annotations can be improved by extracting only dependent content for a selected area related to the specific annotation from the encrypted e-book existing in 200), and transmitting it to the user terminal 100 for display.

On the other hand, the e-book DRM system capable of sharing comments according to an embodiment of the present invention supports other users to add comments to the comments created by the user, and supports sharing these comments together with the comments. When other bulletin board information is linked to a comment, it supports access to other bulletin board information through the link, and supports selectively displaying a specific encrypted area of other e-books included in the other bulletin board information according to the access rights. Can be protected, which will be described in detail with reference to FIGS. 4 and 5.

First, when a comment is added to the bulletin board information received from the service server 200 based on a user input through the input unit of the user terminal 100, the service server ( 200).

In addition, the service server 200 may update the bulletin board information by including the comment information received from the application unit 110 in the bulletin board information previously stored in the annotation DB 203 corresponding to the comment information. .

In addition, the application unit 110 may include identification information of another bulletin board set in another e-book different from the e-book corresponding to the bulletin board information as link information in the comment information according to a user input.

That is, the application unit 110 may receive other bulletin board information generated for another e-book different from the e-book corresponding to the bulletin board information from the service server 200, and the other bulletin board information according to a user input. The other bulletin board identification information generated for identification of the bulletin board may be obtained from the other bulletin board information or obtained from the other e-book, and the other bulletin board identification information may be generated as link information, and then included in the comment information added to the bulletin board information. have.

Accordingly, the service server 200 is a specific terminal that accesses other bulletin board information corresponding to other bulletin board identification information corresponding to the link information based on the link information included in the comment information added to the bulletin board information. Other bulletin board information corresponding to the other bulletin board identification information may be transmitted.

In addition, the service server 200 communicates to the specific terminal through a communication network with the application unit 110 configured in the same manner as the user terminal 100 to correspond to the other bulletin board information for a specific user of the specific terminal. When the other bulletin board information is displayed on the specific terminal by determining the reading permission of the other e-book, the selection area of the other e-book included in the other bulletin board information can be selectively decoded and displayed. have.

In this case, the selection area may be configured in the same manner as the specific area described above, and, for example, may refer to a partial resource constituting a part of a specific resource of the other e-book.

That is, the service server 200 is based on the link information included in the comment information added to the bulletin board information by the user terminal 100 in the specific terminal of another user different from the user terminal 100. When attempting to access the bulletin board information, the other user's permission to read the specific e-book corresponding to the other bulletin board information can be checked as described above, and the other user has the permission to read the specific e-book. Only when there is, transmits the license information for the specific e-book to the application unit 110 configured in the same manner as the user terminal 100 to the specific terminal, and then transmits the license information for the specific e-book to the specific terminal. The selected area of the specific e-book included in the bulletin board information may be decoded based on the license information so that the content of the selected area can be displayed in a verifiable state in the specific terminal.

Through the above-described configuration, the present invention not only supports to share comments through e-books between users, but also supports other users to add comments to the comments of a specific user. By allowing a link to be added, the user can easily check other annotations related to a specific annotation, thereby enhancing user convenience in exchanging information and conducting discussions between users regarding annotations.

In addition, the present invention can completely protect the copyright of the selected area of the e-book shared together when sharing such annotations and comments, so that the efficiency and convenience of copyright protection of the e-book can be improved. .

6 is a service that transmits an e-book to the user terminal 100 according to an embodiment of the present invention through a communication network and communicates with the application unit 110 configured in the user terminal 100 to view the e-book through the communication network This is a flow chart of a method for an e-book DRM service in which annotations can be shared by the server 200.

As shown, the service server 200 may receive annotation information generated from the application unit 110 corresponding to a specific area selected from a specific resource included in the e-book based on a user input (S1). ).

In addition, when receiving the annotation information, the service server 200 provides access to the bulletin board information and bulletin board information including area identification information for a specific encrypted area of the e-book matched with the annotation information and the bulletin board information. It is possible to generate and store the bulletin board identification information including the access address for (S2).

In addition, the service server 200 communicates with the application unit 110 to transmit the bulletin board identification information to the application unit 110 when the application unit 110 reads the specific resource to correspond to the specific resource. The bulletin board identification information may be set in the e-book being viewed through the application unit 110 (S3).

In addition, the service server 200 transmits the bulletin board information to the user terminal 100 when receiving selection information for the bulletin board identification information set in the e-book from the application unit 110 (S4) (S5). ) When displaying the bulletin board information on the user terminal 100 (S6), through communication with the application unit 110, the user corresponding to the user terminal 100 checks the right to read the e-book ( S7) The encrypted specific area included in the bulletin board information may be selectively decrypted and displayed in the user terminal 100 according to the existence of the browsing authority (S8).

Various devices and components described herein may be implemented by hardware circuitry (eg, CMOS-based logic circuitry), firmware, software, or a combination thereof. For example, it may be implemented using transistors, logic gates, and electronic circuits in the form of various electrical structures.

The above-described contents may be modified and modified without departing from the essential characteristics of the present invention by those of ordinary skill in the technical field to which the present invention pertains. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: user terminal 110: application unit
111: e-book reading module 112: annotation generating module
113: comment display module 200: service server
210: e-book providing unit 220: license issuing unit
230: annotation sharing unit

Claims (9)

A content e-book configured in a user terminal is viewed, and annotation information is generated in response to a specific area selected from a specific resource included in the e-book based on a user input through the user terminal, and a request for sharing the annotation information An application unit that transmits the annotation information upon request; And
It communicates with the application unit of the user terminal through a communication network, transmits the e-book to the application unit, and when receiving the annotation information corresponding to the e-book to be shared, a specific area of the e-book matching the annotation information Creates and stores bulletin board identification information including area identification information and bulletin board information including the annotation information and an access address for accessing the bulletin board information, and when the application part reads the specific resource, the bulletin board in the application part By transmitting identification information, the bulletin board identification information is set in the e-book corresponding to the specific resource, and the bulletin board information is sent to the user when selection information for the bulletin board identification information set in the e-book is received from the application unit. It is transmitted to the terminal, but when the user terminal displays the bulletin board information, through communication with the application unit, the user corresponding to the user terminal checks the permission to read the e-book, and according to the existence of the permission, the Including a service server that allows specific areas to be selectively displayed,
When a comment is added to the bulletin board information based on a user input, the application unit transmits comment information on the comment to the service server, and links identification information of other bulletin boards set in another e-book different from the e-book according to the user input. To be included in the comment information,
The service server updates the bulletin board information by including the comment information received from the application unit in the previously stored bulletin board information corresponding to the comment information, and to other bulletin board information corresponding to the link information based on the link information. The other bulletin board information is transmitted to a specific terminal to be accessed and communicates with the application unit configured in the specific terminal through a communication network to determine the permission to read the other e-book corresponding to the other bulletin board information for a specific user of the specific terminal. Thus, when the other bulletin board information is displayed in the specific terminal according to whether or not the user has permission to read, an e-book DRM system capable of sharing comments selectively decodes and displays a selected area of the other e-book included in the other bulletin board information.
The method according to claim 1,
When the application unit displays the bulletin board information through the user terminal, the service server transmits the specific area to the user terminal in an encrypted state, and transmits the specific area to the user terminal through communication with the application unit. An e-book DRM system capable of sharing annotations, characterized in that, by checking a viewing right for the user terminal, when the viewing right exists, the specific area in the encrypted state is decrypted and displayed through an application unit of the user terminal.
The method according to claim 1,
An e-book DRM system capable of sharing annotations, wherein the specific resource is any one of text, image, sound, and video.
The method according to claim 2,
The service server transmits license information corresponding to the e-book so that the application unit decrypts the specific encrypted area included in the bulletin board information when the user has the right to read according to the existence of the right to read. When the bulletin board information is displayed, the specific area is displayed based on the license information, and when the bulletin board information is displayed, the license information is displayed so that the encrypted specific area is not displayed on the user terminal when the bulletin board information is displayed. An e-book DRM system capable of sharing annotations, characterized in that it is not transmitted to the user terminal.
The method according to claim 2,
The service server encrypts the e-book corresponding to the area identification information based on the user information received from the application unit of the user terminal and the area identification information of the specific area when displaying the bulletin board information on the user terminal. The specific area is transmitted to the application unit of the user terminal, and based on the user's member information matched with the user information, the access rights for the e-book are verified after checking the access rights for the e-book corresponding to the area identification information. If present, transmits the license information of the e-book to the application unit of the user terminal,
When displaying the bulletin board information, the application unit transmits the area identification information and the user information of the specific area included in the bulletin board information to the service server, and transmits the license information when receiving the license information in correspondence with the user information. An electronic comment sharing capable of displaying the specific area when displaying the bulletin board information after decrypting a specific encrypted area of the e-book received from the service server in correspondence with the area identification information based on the area identification information Book DRM system.
delete delete delete In the e-book DRM service method capable of sharing annotations between an application unit configured in a user terminal for reading the e-book and a service server communicating through the communication network by transmitting an e-book to a user terminal through a communication network,
Receiving, by the service server, annotation information generated from the application unit in response to a specific area selected from a specific resource included in the e-book based on a user input;
A bulletin board including area identification information for a specific area of the e-book matching the annotation information when the service server receives the annotation information, bulletin board information including the annotation information, and a connection address for accessing the bulletin board information Generating and storing identification information;
The service server communicating with the application unit to transmit the bulletin board identification information to the application unit when the application unit reads the specific resource so that the bulletin board identification information is set in the e-book corresponding to the specific resource; And
When the service server receives selection information for the bulletin board identification information set in the e-book from the application unit, it transmits the bulletin board information to the user terminal, but when the user terminal displays the bulletin board information, it communicates with the application unit. Comprising the step of checking a user's right to read the e-book by a user corresponding to the user terminal through communication, and selectively displaying the specific area according to the existence of the right to read,
When the application unit transmits comment information on the comment to the service server when adding a comment to the bulletin board information based on a user input, the service server receives the previously stored bulletin board information corresponding to the comment information from the application unit. Updating the bulletin board information by including one comment information;
When the application unit includes identification information of another bulletin board set in another e-book different from the e-book according to a user input as link information in the comment information, the service server provides another bulletin board corresponding to the link information based on the link information. Transmitting the other bulletin board information to a specific terminal accessing the information, and communicating with the application unit configured in the specific terminal through a communication network to view the other e-book corresponding to the other bulletin board information for a specific user of the specific terminal When the other bulletin board information is displayed in the specific terminal according to whether or not to view the right to view, the comment sharing further comprises the step of selectively decoding and displaying the selected area of the other e-book included in the other bulletin board information. A possible e-book DRM service method.

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