KR20100123562A - Contents collaboration system and method among multi-user - Google Patents

Abstract

PURPOSE: A multilateral contents collaboration system and a method thereof are provided to share multimedia information in the online by different users. CONSTITUTION: A communication unit(302) communicates with a plurality of client terminals. A layer allocation unit(304) assigns the layers according to each user to a plurality of client terminals. A resource handler(308) processes the multitask management about the cooperative work service, task scheduling and dynamic resource allocation. A layer display unit(306) merges the layers and displays the merged layers.

Description

Content collaboration system and method among multi-user}

The present invention relates to a content collaboration system and method for sharing video conferencing or information among various users connected to a communication network such as the Internet. More specifically, the present invention relates to multimedia, which is used on a personal PC or online. By sharing information online with multiple users at a remote location, you can share and update web, video, photo, document, etc. in real time and multi-task for multiple users to work at the same time. The present invention relates to a multi-party content collaboration system and method that enables multi-operation to easily and quickly collaborate among multiple users.

Conventional collaboration environment has been inefficient structure of information sharing, data creation, and decision making through off-line meeting in case of video conferencing. Individuals also had to pay for the opportunity, called meetings, for shopping and sharing travel information.

However, advances in network technology have led to on-line web conferencing, video conferencing for meetings and decision making, data transfer via Instant Messenger, and web ( Web) Collaboration is being made through information sharing. However, despite the support of various collaborative applications online, users' needs for real-time information sharing are not satisfied.

Instant Messenger provides text and video chat, video and document delivery, and Presence capabilities to facilitate the information and communication needed to deliver simple information and communication within the Personal Networking category. It provides a simple collaboration function.

On-line conferencing involves people involved in the task at hand, sharing documents, videos, and web information in real time to conduct meetings, participate in decision making, and provide collaboration. The function of collaboration here is the level of data sharing and the input of participants.

1 is a view showing the structure of a conventional video conferencing system.

Referring to FIG. 1, the conventional video conferencing system 100 includes a server 110, a communication network 120, and a plurality of user terminals 130 to 134.

The server 110 includes a platform for video conferencing and provides a video conferencing function to a plurality of user terminals 130 to 134 through a networking agent.

The plurality of user terminals 130 to 134 may include a user interface manager, a task manager, an input-output manager, a controller, a network agent, and a codec. And the like).

As shown in FIG. 1, the conventional video conferencing system 100 has a minimum function of the server 110 and is designed to perform many functions in a PC client such as user terminals 130 to 134.

Therefore, this structure is not a system designed on the assumption that the nature of video conferencing, which is basically performed by a plurality of user terminals 130 to 134 simultaneously, is co-worked, but a general presentation is performed on one side and the other. The page is designed with the listener's position in mind. The role of the server 110 is to check the information of the data coming from the user terminals (130 to 134), and to perform the routing (Routing) for this, and the transmission priority according to the data type (Data Type) ( Transmission Priority).

In addition, since it has a PC Client-to-PC Client structure, there is no function to separately perform Network Session management, so there is no provision for a case where the session is disconnected according to the network state.

In addition, the structure designed as a PC client has a high PC CPU share because it has a dependency on the performance of the PC itself. When the video conferencing software is run on a low performance PC, the service is bottlenecked by the low performance PC. It can work as In the PC client structure, there is no subject having a function that can efficiently control network traffic. For example, a typical method of minimizing network traffic is to share a file on the screen, and the file shown to the other party is compressed in the form of an image and transmitted. Therefore, although the program is driven and displayed on the screen of the actual presenter, the screen of the opponent is displayed in the form of Image, so there is a problem in that editing and modification are impossible on the screen.

An object of the present invention for solving the above problems is to assign each participant a layer to each participant in a multi-party video conference via a communication network, and to grant control to the layer, so that users who participate in the remote place work simultaneously in real time. A multi-party content collaboration system and method, a collaboration server, and the like, to share a plurality of contents and applications, and to merge layers of each user so that they are displayed on a screen of each user. It is to provide a multi-party content collaboration method.

Content collaboration system according to the present invention for achieving the above object, a client terminal using a content collaboration service; And creating a collaboration entity, allocating user-specific layers to a plurality of client terminals connected to the collaboration entity, and merging the assigned user-specific layers on the collaboration entity to access the content collaboration service to the collaboration entity. It includes a collaboration server for providing a plurality of client terminals.

On the other hand, the collaboration server according to the present invention for achieving the above object, Communication unit for communicating with a plurality of client terminals; A layer allocator configured to allocate layers for each user to the plurality of client terminals; A resource manager for processing multi-task processing, task scheduling, and dynamic resource allocation for the cooperative services of the plurality of client terminals; A layer display unit for merging and displaying user-specific layers assigned to the plurality of client terminals; And a control unit for allocating the user-specific layers to the plurality of connected client terminals, and controlling the user-specific layers assigned to the plurality of client terminals to be displayed on the screen.

In addition, when the plurality of client terminals participate in the multi-party conference, the control unit processes real-time input from the plurality of client terminals and grants a control right to each user layer.

The apparatus may further include a user interface for sharing contents stored on the plurality of client terminals and a user interface manager for providing a user interface for executing an application.

The resource manager may allow a plurality of applications to be driven in real time, or process data required for driving the application in real time.

In addition, the resource management unit manages a driven task in real time, and performs a task scheduling to manage the priority of each task.

In addition, the resource management unit operates in a bandwidth adaptive priority control (BAPC) scheme that prioritizes packet transmission having high priority even if the network environment changes due to priority of each packet type.

The resource manager may allocate resources to the driven collaboration body in real time, and recover and rearrange resources of the finished collaboration body.

The apparatus may further include a codec unit for providing a plurality of client terminals by coding or decoding and transcoding content including a moving image or a still image.

In addition, the communication unit performs a network optimizer function of compressing data and transmitting only minimally changed data in consideration of network load when transmitting data with the plurality of client terminals.

In addition, the communication unit performs a multicasting tunneling function of converting the multicasting scheme to the unicasting scheme or converting the unicasting scheme to the multicasting scheme in order to efficiently use the bandwidth of the network during data transmission.

In addition, the controller performs a real-time synchronization process regarding synchronization of data or images with the plurality of client terminals, and synchronization with client terminals that want to share the summarized results on the collaboration body.

The apparatus may further include a security manager that encrypts data transmitted and received with the client terminal and restricts only limited participants to attend in case of a specific collaboration.

Then, the collaboration body is stored in the form of a file, managed in a public or private form with the consent of the participants, and after the collaboration work through the collaboration body by the plurality of client terminals to access the web The storage management unit further comprises.

On the other hand, the multi-party content collaboration service method according to the present invention for achieving the above object, a multi-party content collaboration service method of a system comprising a client terminal and a collaboration server, (a) the collaboration server requested by the client terminal Creating a collocated collaboration; (b) other terminals accessing the collaboration entity; (c) the collaboration server assigning a user-specific layer to client terminals and other terminals connected to the collaboration body; (d) the client terminal and the other terminals performing a collaborative operation through the user-specific layer; And (e) the collaboration server merging the user-specific layers and expressing them to the client terminal and the other terminals.

In addition, the multi-party content collaboration service method of the collaboration server according to the present invention for achieving the above object, a multi-party content collaboration service method of the collaboration server to provide a content collaboration service to a plurality of client terminals, (a) the client Generating a collaboration for providing a content collaboration service according to a request of a terminal; (b) assigning each user layer to client terminals connected to the collaboration body; (c) receiving data regarding a collaboration operation from the client terminals through the user layer; And (d) merging the user-specific layers into which data relating to the collaboration operation is input and displaying the same on the collaboration body.

The collaboration body may include a two-dimensional window, a two-dimensional chat room, and a three-dimensional virtual space.

Also, in the step (b), ownership of the window is granted to the client terminal that initially created the window of the collaboration object.

In addition, in the step (b), if there is no input from the client terminal generating the window to pass the threshold time, the entry order of the user entering the window or the terminal receiving the invitation from the user who created the window Priority is determined according to the order of entry.

Also, in the step (c), if the result of simultaneous inputs is affected by the opponent, the low priority input is ignored.

In addition, the step (c) displays a notification in the shape of a mouse cursor that the input is ignored to the client terminal whose input is ignored because of low priority.

In addition, step (c) reflects the result of the input according to the priority when the users are in the same window at the same time.

In addition, in step (c), data about a collaborative operation including data on text and video chat, data on video and document data, data on image creation, and data on presentation are input.

In the step (b), the control rights for the layers are granted to the assigned user-specific layers.

On the other hand, the multi-party content collaboration service method of the collaboration server according to the present invention can be recorded as a program on a computer-readable medium.

According to the present invention, a user can enjoy an environment in which information can be shared freely with other users on-line and can update a document through collaboration.

In addition, service providers can provide a new concept of collaboration space services that enables more advanced multi-operating and multi-tasking than existing Instant Messenger or on-line conferencing.

In addition, all users who access the Collaboration space online can see in real time the results of what others have done and what they have done.

And you can quickly and easily collaborate between users who have access to the collaboration.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram schematically showing the configuration of a content collaboration system according to an embodiment of the present invention.

2, the content collaboration system 200 according to the present invention includes a collaboration server 210, a communication network 220, and client terminals 230 to 234.

The collaboration server 210 creates a collaboration space such as a two-dimensional window, a two-dimensional chat room, and a three-dimensional virtual space, and provides a layer for each user to a plurality of client terminals connected to the collaboration. Assign Layer. The collaboration server 210 merges the allocated user-specific layers on the collaboration body to provide a content collaboration service to a plurality of client terminals connected to the collaboration body.

The communication network 220 may be a mobile communication network when the client terminals 230 to 234 are mobile terminals, and may be a wired network such as the Internet when the client terminals 230 to 234 are computers such as a PC.

The client terminals 230 to 234 are terminals that access content collaboration provided by the collaboration server 210 and use the content collaboration service. Accordingly, the client terminals 230 to 234 may be mobile terminals such as mobile phones or PDAs, and may be computer terminals connected to the Internet.

As shown in FIG. 2, the content collaboration system 200 according to the present invention has a structure in which the configuration of the PC-type client terminals 230 to 234 is reduced in weight, and performs many roles in the collaboration server 210.

Therefore, users access the collaboration server 210 through the client terminals 230 to 234 to create a collaboration in a three-dimensional virtual space, invite several users in this space, and intuitively and freely perform various collaboration tasks simultaneously. To proceed.

3 is a block diagram schematically showing a functional block of a collaboration server according to an embodiment of the present invention.

Referring to FIG. 3, the collaboration server 210 according to the present invention includes a communication unit 302, a layer allocator 304, a layer display unit 306, a resource manager 308, a controller 310, and a user interface ( A user interface (hereinafter referred to as UI) management unit 312, a codec unit CODEC 314, a security manager 316, and a storage manager 318 are included.

The communication unit 302 includes a network agent and communicates with the plurality of client terminals 230 to 234 through the communication network 220.

In addition, the communication unit 302 performs a network optimizer function that compresses data in consideration of network load and transmits only a minimum of changed data when transmitting data with a plurality of client terminals 230 to 234.

In addition, the communication unit 302 converts a multicasting method to a unicasting method or converts a unicasting method to a multicasting method in order to efficiently use a bandwidth of a network during data transmission. Multicasting Tunneling is performed.

The layer allocator 304 assigns a user-specific layer to each of the plurality of client terminals 230 to 234.

The layer display unit 306 merges and displays layers for each user assigned to the plurality of client terminals 230 to 234.

The resource manager 308 processes multi-task processing, task scheduling, and dynamic resource allocation for the cooperative service of the plurality of client terminals 230 to 234.

In addition, the resource manager 308 allows a plurality of applications to be driven in real time, or processes data necessary for driving the application in real time.

In addition, the resource manager 308 manages the driven task in real time, and performs task scheduling to manage the priority of each task.

In addition, the resource management unit 308 operates in a Bandwidth Adaptive Priority Control (BAPC) scheme that prioritizes packet transmission having a high priority even if the network environment changes due to priority of each packet type.

The resource manager 308 allocates resources in real time to the driven collaboration body, and recovers and rearranges the resources of the finished collaboration body.

The controller 310 assigns each user layer to the plurality of client terminals 230 to 234 connected to the collaboration entity, merges the user layers assigned to the plurality of client terminals 230 to 234, and displays them on the screen. To control.

In addition, when the plurality of client terminals 230 to 234 participate in the multi-party conference, the controller 310 processes real-time input from the plurality of client terminals 230 to 234 and grants control to each user layer. do.

In addition, the controller 310 synchronizes data or images with the plurality of client terminals 230 to 234, and real-time synchronization with a client terminal that wants to share the result of the arrangement on the collaboration body. Perform Real Time Sync Processing.

The UI manager 312 includes a UI framework, and provides a user interface for sharing contents stored in the plurality of client terminals 230 to 234, and a user interface for executing an application. Accordingly, the UI manager 312 may perform file transfer and application execution by drag and drop through a user interface.

The codec unit 314 provides a plurality of client terminals 230 to 234 by coding or decoding and transcoding a content including a moving image or a still image.

The security management unit 316 encrypts data transmitted and received with the client terminal, and in the case of a specific collaboration, restricts only limited participants to attend.

The storage manager 318 stores the collaboration body in the form of a file, manages it in a public or private form with the consent of the participants, and after the collaboration work through the collaboration body by the plurality of client terminals 230 to 234, Enable web access.

4 is a configuration diagram schematically showing an internal configuration of a client terminal to which the present invention is applied.

Referring to FIG. 4, the client terminal 230 according to the present invention includes a network agent 410, a UI handler 420, an input / output manager 430, and an event handler. (Event Handler) 440 and the controller 450.

The network agent 410 communicates with the collaboration server 210 or other terminals 232 and 234 through the communication network 220.

The UI handler 420 controls a basic user interface on the client terminal. For example, it processes multiple menus for input.

The input / output manager 430 manages input and output of the terminal. That is, the input / output manager 430 may use an input function when communicating with the collaboration server 210 or when performing a collaboration operation. In addition, the input / output manager 430 may use an output function when displaying a result related to the operation of the terminal or displaying multimedia content provided from the collaboration server 210. For example, the input / output management unit 430 displays the collaboration work result obtained by merging layers for each user in the collaboration server 210 on the screen of the terminal.

The event handler 440 processes an event or interrupt generated in the terminal.

The controller 450 controls to request the creation of a collaboration on the collaboration server 210 or controls to receive and display an input related to the collaboration operation and a result of the collaboration operation through a user-specific layer on the collaboration body.

5 is a flowchart illustrating a multi-party content collaboration service method according to an embodiment of the present invention.

Referring to FIG. 5, according to an embodiment of the present invention, any client terminal 230 connects to the collaboration server 210 through the communication network 220 and requests generation of, for example, a collaboration for video conferencing ( S510).

In this case, the collaboration server 210 may provide a menu about a content collaboration service through a website, and the client terminal 230 may select one of the menus presented on the website to request creation of a collaboration.

Thus, the collaboration server 210 generates a partner company requested from any client terminal 230 (S520).

For example, the client terminal 230 that wants to have a video conference in a three-dimensional virtual space connects to the collaboration server 210 and requests creation of a two-dimensional or three-dimensional chat room. Accordingly, the collaboration server 210 connects to the requested chat room. It is to create a collaboration in the form of a two-dimensional or three-dimensional virtual space. Here, the collaborator transmits a file such as a video or an image to the counterpart while performing a video conference or a chat with the counterpart, and can perform a collaborative operation such as editing and editing an image with the counterpart. Say). Therefore, the collaboration body may be implemented in a two-dimensional chat room, a three-dimensional virtual space, or the like, and may also be implemented in a window form.

Subsequently, the client terminal 230 selects other terminals 232 and 234 according to the intention of other terminals 232 and 234 to invite or join the other terminals 232 and 234 to the currently created collaboration. Access to the collaboration (S530).

Accordingly, the collaboration server 210 allocates a layer for each user to provide the content collaboration service to the client terminal 230 and the other terminals 232 and 234 connected to the collaboration entity (S540).

Subsequently, the client terminal 230 and the other terminals 232 and 234 connected to the collaborative body perform the collaborative work through the assigned user layer, respectively (S550).

Thereafter, the collaboration server 210 merges the layers for each user on which the collaboration work is performed, and expresses them to the client terminal 230 and the other terminals 232 and 234 through the collaboration (S560). Accordingly, the client terminal 230 and the other terminals 232 and 234 receive the result of the collaboration work obtained by merging the layers in the collaboration server 210 from the collaboration server 210 and display the result on the screen. In this case, even when the client terminals 230 to 234 are mobile terminals, the client terminals 230 to 234 are displayed through a small screen of a terminal made of, for example, an OLED.

Meanwhile, in the above-described embodiment, the client terminals 230 to 234 perform the cooperative work with each other through the collaboration body of the collaboration server 210. However, the client terminals 230 to 234 use the P2P method. The screen of the counterpart terminal may be shared, or a file, an image, or a video may be shared with each other. Here, since each terminal shares a file or a screen in a P2P manner, it is a common technique, and thus a detailed description thereof will be omitted.

6 is a flowchart illustrating a multi-party content collaboration service method of a collaboration server according to an embodiment of the present invention.

Referring to FIG. 6, if the collaboration server 210 according to the present invention has a request for generating a collaborative body from the client terminal 230, for example, a request for generating a 3D video conference space (S610), the content collaboration is performed according to the request. Create a collaboration for providing a service (S620).

Subsequently, when not only the client terminal 230 but also other terminals 232 and 234 access the collaboration entity (S630), the collaboration server 210 may be configured for each user to the terminals 230 to 234 connected to the collaboration entity. Assign a layer (S640).

Here, the collaboration body may include a two-dimensional window, a two-dimensional chat room, and a three-dimensional virtual space.

In addition, the collaboration server 210 gives ownership to the window to the client terminal that originally created the window of the collaboration body.

In addition, when there is no input for passing a threshold time from the client terminal generating the window, the collaboration server 210 may enter the order of entry of the user entering the window or the entrance order of the terminal receiving the invitation from the user who created the window. To determine the priority.

Subsequently, the collaboration server 210 grants control rights to the respective layers to the user-specific layers assigned to each client terminal (S650).

The collaboration server 210 receives data regarding the collaboration operation from the client terminals through the user-specific layer (S660).

Here, the data on the collaborative operation includes data on text and video chat, data on video and document data, data on image creation, data on presentation, and the like.

At this time, the collaboration server 210 ignores inputs having a lower priority when the result of simultaneous inputs is affected by the partner.

In addition, the collaboration server 210 displays a notification in the shape of a mouse cursor that the input is ignored to a client terminal whose input is ignored because of low priority.

In addition, the collaboration server 210 reflects the result of the input according to the priority when the users are in one window at the same time.

Then, the collaboration server 210 merges the user-specific layers, into which data related to the collaboration operation is input, as shown in FIG. 7, and displays the result on the collaboration body (S670). 7 is a diagram illustrating merging and expressing user-specific layers according to an embodiment of the present invention.

Accordingly, the client terminal 230 and the other terminals 232 and 234 may check the result reflecting the contents of the work that the other person worked on and the person himself worked through the collaboration body.

By the way, when a user performs a task on another window in a collaboration body, there is no problem, but when trying to take control on the same window, the control unit 310 prioritizes the control right on the collaboration as shown in Table 1 below. Priority is determined according to Controllability Priority.

Priority Input Type Remarks 1st priority When the input of the person who created the window comes in on the Collaboration Space In principle, the person who created the window has ownership of the window, and this ownership can be transferred, and the transferee has the same effect as the person who created the window. 2nd rank Collaboration Space Award
The constructor of a particular Window
If you are invited If the window constructor invites 'A' and then 'B' in sequence, 'B' comes in first, and 'A' comes in later, but if it enters 'A', it gets 2nd rank of input before entering 'A'. When 'A' enters, 'B' lowers the Priority of the input by one level. 3 rank Order to enter specific window in Collaboration Space If the window created on the Collaboration Space is not a secret, all users participating in the Collaboration Space can enter. Priority of input is determined by the order of entry even without invitation. Etc The above case is the case explained when the input value inputted by several people does not affect each other's input value, and the input value inputted by several people influences mutual input value. Input priority is determined based on the Controllability Priority defined above, and the output of the input with the highest priority is reflected, but the other inputs are ignored.

In the case of the third rank in Table 1, the input to the person who is not invited by the owner of the window may be limited, in this case, the controller 310 is a person who enters it without being invited to the Mouse Cursor of the client terminal (230 ~ 234) Notice to the user.

In addition, the person who originally created a window has ownership of the window, and in principle, the person has the highest priority of controllability. However, if there is no input of the window creator more than the threshold time, the priority can be determined by the order of entering the window or the entrance order of the person who is invited by the window creator.

In the above cases, both input directions are valid when they are not harmful to the input simultaneously.However, when the result of the simultaneously input input is affected by the opponent, it is performed according to the controllability priority. Is ignored for low inputs. In this case, a notice is displayed in the shape of a mouse cursor to inform the user that his input is ignored.

Meanwhile, the multi-party content collaboration service method of the collaboration server according to the present invention can be recorded as a program on a computer-readable medium such as a CD or a USB memory.

As described above, according to the present invention, in a multi-party video conference via a communication network, each participant is assigned a layer for each user and a control right for the layer is provided so that the users who participate in the remote place can simultaneously perform tasks in real time. And a multi-party content collaboration system and method for sharing multiple contents and applications and merging all user layers to display on a screen of each user, a collaboration server, and a multi-party content collaboration method. Can be realized.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The present invention can be applied to a service and a system in which a plurality of users perform video conferencing or the like on a server.

In addition, the present invention can be applied to a service and a system in which a plurality of users can collaborate together while chatting.

It can be applied to services and systems that can share files or tasks with multiple users.

1 is a view showing the structure of a conventional video conferencing system.

2 is a configuration diagram schematically showing the configuration of a content collaboration system according to an embodiment of the present invention.

3 is a block diagram schematically showing a functional block of a collaboration server according to an embodiment of the present invention.

4 is a configuration diagram schematically showing an internal configuration of a client terminal to which the present invention is applied.

5 is a flowchart illustrating a multi-party content collaboration service method according to an embodiment of the present invention.

6 is a flowchart illustrating a multi-party content collaboration service method of a collaboration server according to an embodiment of the present invention.

7 is a diagram illustrating merging and expressing user-specific layers according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: conventional video conference system 110: server

120: communication network 130 ~ 134: user terminal

200: content collaboration system 210: collaboration server

220: communication network 230 ~ 234: client terminal

302: communication unit 304: layer assignment unit

306: layer display unit 306: resource management unit

310: control unit 312: user interface management unit

314: codec unit 316: security management unit

318: storage management unit 410: network agent

420: UI handler 430: input and output management unit

440 event handler 450

Claims (25)

A client terminal using a content collaboration service; And Creating a collaboration, assigning each user layer to a plurality of client terminals connected to the collaboration, and merging the assigned user-specific layers on the collaboration to connect the content collaboration service to the collaboration. A collaboration server providing a plurality of client terminals; Content collaboration system comprising a. A communication unit for communicating with a plurality of client terminals; A layer allocator configured to allocate layers for each user to the plurality of client terminals; A resource manager for processing multi-task processing, task scheduling, and dynamic resource allocation for the cooperative services of the plurality of client terminals; A layer display unit for merging and displaying user-specific layers assigned to the plurality of client terminals; And A controller for allocating the user-specific layers to a plurality of connected client terminals and controlling the user-specific layers assigned to the plurality of client terminals to be displayed on a screen; Collaboration server that includes. The method of claim 2, The control unit, when the plurality of client terminals to participate in the multi-party conference, processing the real-time input from the plurality of client terminals and at the same time give a control right to each user layer. The method of claim 2, A user interface manager providing a user interface for sharing contents stored on the plurality of client terminals and a user interface for executing an application; Collaboration server, characterized in that it further comprises. The method of claim 2, The resource management unit, characterized in that a plurality of applications are driven in real time, or processes the data required for driving the application in real time. The method of claim 2, The resource management unit manages a driven task in real time, and performs a task scheduling for managing the priority (Priority) of each task. The method of claim 2, The resource manager is configured to operate in a Bandwidth Adaptive Priority Control (BAPC) scheme, which prioritizes packet transmission having high priority even if the network environment changes due to priority for each packet type. Featured Collaboration Server. The method of claim 2, The resource management unit, the collaboration server, characterized in that for allocating resources to the driven collaboration in real time, and to recover and rearrange the resources of the finished collaboration. The method of claim 2, A codec unit for coding or decoding and transcoding content including a moving image or a still image to the plurality of client terminals; Collaboration server, characterized in that it further comprises. The method of claim 2, The communication unit performs a network optimizer function that compresses data in consideration of network load and transmits only the minimum changed data when transmitting data with the plurality of client terminals. The method of claim 2, The communication unit converts a multicasting scheme to a unicasting scheme or converts a unicasting scheme to a multicasting scheme in order to efficiently use network bandwidth during data transmission. A collaboration server, characterized in that to perform a function. The method of claim 2, The control unit may perform real time sync processing on synchronization of data or images with the plurality of client terminals and synchronization with client terminals that want to share the summarized results on the collaboration body. Collaboration server. The method of claim 2, A security manager for encrypting data transmitted and received with the client terminal and restricting only limited participants to attend in case of a specific collaboration entity; Collaboration server, characterized in that it further comprises. The method of claim 2, Store the collaboration in the form of a file, manage in a public or private form with the consent of the participants, and after the collaboration work through the collaboration by the plurality of client terminals, the storage for access to the web A storage manager; Collaboration server, characterized in that it further comprises. A multi-party content collaboration service method of a system including a client terminal and a collaboration server, (a) the collaboration server creating a collaboration requested by the client terminal; (b) other terminals accessing the collaboration entity; (c) the collaboration server assigning a user-specific layer to client terminals and other terminals connected to the collaboration body; (d) the client terminal and the other terminals performing a collaborative operation through the user-specific layer; And (e) the collaboration server merging the user-specific layers and expressing them to the client terminal and the other terminals; Multi-party content collaboration service method comprising a. A multi-party content collaboration service method of a collaboration server that provides a content collaboration service to a plurality of client terminals, (a) generating a collaboration body for providing a content collaboration service according to a request of the client terminal; (b) assigning each user layer to client terminals connected to the collaboration body; (c) receiving data regarding a collaboration operation from the client terminals through the user layer; And (d) merging the user-specific layers into which data relating to the collaboration operation is input and displaying the same on the collaboration body; Multi-party content collaboration service method of a collaboration server comprising a. The method of claim 16, The collaboration body, a multi-party content collaboration service method of a collaboration server, characterized in that it comprises a two-dimensional window, two-dimensional chat room, three-dimensional virtual space. The method of claim 16, Step (b), the multi-party content collaboration service method of the collaboration server, characterized in that the ownership of the window to the client terminal that first created the window of the collaboration body. The method of claim 18, In the step (b), when there is no input from the client terminal generating the window to pass the threshold time, the entry order of the user entering the window or the entry order of the terminal receiving the invitation from the user who created the window The multi-party content collaboration service method of the collaboration server, characterized in that for determining the priority according to. The method of claim 16, The step (c) of the multi-party content collaboration service method of the collaboration server, characterized in that if the result of the simultaneous input is affected by the opponent, the low priority input is ignored. The method of claim 20, The step (c) of the multi-party content collaboration service method of the collaboration server, characterized in that to display a notification in the shape of a mouse cursor (Mouse Cursor) that the input is ignored to the client terminal that the input is ignored because of low priority. The method of claim 16, The step (c) is a multi-party content collaboration service method of a collaboration server, characterized in that if the user at the same time at the same time reflects the results of the input according to the priority. The method of claim 16, In the step (c), the data related to the text and video chat, the data related to the video and document data, the data related to the data, including the data related to the cooperative operation including the presentation data, the collaboration How to multi-party content collaboration services on the server. The method of claim 16, In the step (b), the multi-party content collaboration service method of the collaboration server, characterized in that each of the assigned user-specific layer to give a control to the layer. A computer readable medium having recorded thereon a method according to any one of claims 16 to 24.

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