JP2021125840A - Content output system and method - Google Patents

Abstract

To provide a content output system and method utilizing multiple-display devices, which allow synchronization between multiple-display devices to occur without a separate control terminal.SOLUTION: A content output system includes a web server that provides contents to a web-connected terminal, and a plurality of devices that are connected to a web server and output respective preset areas of contents. Each of the devices is operated by a web browser that supports real-time web communication, and is classified into a master device that provides content synchronization information that specifies the time-series order of content and a sync synchronization signal that specifies the output timing of content, and a slave device that outputs the contents by the information and the signal provided by the master device.SELECTED DRAWING: Figure 2

Description

The present invention relates to a system and a method for configuring a large-sized output device using a multiple display device and outputting contents through the large-sized output device. More specifically, the present invention is a web browser platform in which each device is connected by P2P communication based on a web browser, and output content is synced and a schedule is synchronized between the devices without a separate control device. Regarding content output systems and methods using multiple devices.

Recently, as the demand for larger display devices has increased, a large number of display devices can be connected to form one display device to form a large display device having a size that cannot be realized by a single display device. Is being done.

Further, as the resolution of the content increases, an ultra-high definition video device that supports a UHD (Ultra High Definition) resolution higher than the HD (High Definition) resolution is used.

In the case of 4K UHD, such UHD content is divided into 4 HD images to form one video frame, and in the case of 8K, is it divided into 16 HD images? It is divided into 4K UHD images.

Along with this, the need for a multi-vision system is further increasing in order to configure a plurality of divided images obtained by dividing the video content so as to be output through a plurality of display devices different from each other.

At this time, each output device can output through the display device by decoding a frame of the divided video corresponding to a part of the UHD video frame with a preset clock signal.

In the process of outputting a frame of a divided video through such a plurality of output devices, a clock deviation occurs due to a delay in video processing between a plurality of different output devices and a delay in the buffering process. Due to this, there arises a problem that a divided video frame constituting another UHD video frame is output to a part of the frames constituting one UHD video frame.

In order to prevent such a deviation from occurring, the synchronization device transmits a clock signal as the synchronization signal to each output device, and the output device that receives the synchronization signal adjusts to the corresponding synchronization signal and makes an error in the clock signal. Can be corrected and output. However, when a continuous video frame delay occurs in some output devices, it is difficult to reproduce the UHD video normally because the correction is performed only when the synchronization signal is received depending only on the synchronization signal. There is a problem.

In order to solve such a problem, Korean Registered Patent No. 10-1513413 discloses a technique for synchronizing and outputting UHD-class video through a video output device composed of a matrix based on Android OS. There is.

However, in the prior art as described above, a separate control terminal (multi-vision operation server) that controls the playback synchronization of each device is indispensably required, and the control terminal becomes undriveable, or the device and the control terminal. There is a problem that it becomes impossible to synchronize the output contents when the connection with is broken.

Further, in the prior art, since the control terminal and each device must be driven by the same OS, there is a problem that the system configuration is restricted.

Republic of Korea Registered Patent No. 10-1513413

The present invention has been devised to solve the above-mentioned conventional problems, and the present invention is to set a master device and a slave device among the devices constituting the multi-vision. It seeks to provide a content output system and method utilizing multiple devices that allows synchronization and synchronization between multiple display devices to be performed without a separate control terminal.

And the present invention is a content output system using multiple devices that can provide sync and synchronization between devices driven by different OSs by causing each device to be P2P linked based on a web browser. It seeks to provide a method.

Further, the present invention causes any one of the output devices to be set as the master device, and when the connection between the master device and the slave device is released, the device having a good connection state is reset to the master device. It seeks to provide content output systems and methods that utilize multiple devices to ensure stable synchronization and synchronization between devices.

According to the features of the present invention for achieving the above object, the present invention includes a web server that provides output content to a web-connected terminal; and content provided by connecting to the web server. A device that outputs, including a plurality of devices that output each preset area of the content; the device is operated by a web browser that supports web real-time communication (WebRTC, Web Real Time Communication). A master device that generates and provides content synchronization information that specifies the time-series order of the output content and a sync synchronization signal that specifies the output timing of the output content; and is provided by the master device. It is classified into slave devices that output content according to the content synchronization information and sync synchronization signal.

At this time, the device may be linked with all the different devices in a communication between the web browsers in a full mesh topology.

Then, the device may be connected by P2P (Peer to Peer) communication through a real-time communication data channel (RTC Data Channel).

Further, the content synchronization information may be information indicating the order and start time of the output contents.

The sync synchronization signal is a signal that synchronizes the output time points of specific frames constituting the output content, and may be generated and provided in preset time units.

Further, when the output content includes additional output data, the master device may generate an additional output data synchronization signal for synchronizing the output time of the additional output data and provide the slave device with the additional output data synchronization signal. Oi.

The additional output data may be subtitles or advertisement data.

In addition, the order in which the devices are designated as master devices has already been specified; any one of the devices may be designated and changed as a master device according to the order.

The change of the master device may be changed when one or more P2P communication between the master device and the slave device is interrupted.

Further, when P2P communication of any one or more of the master device and the slave device is interrupted, among the remaining slave devices excluding the master device and the slave device in which the P2P communication is disconnected from the master device. , A slave device whose P2P communication connection is maintained with all other devices may be set as a new master device by transferring master authority from the master device.

Then, among the remaining slave devices excluding the master device and the slave device in which P2P communication is disconnected from the master device, there are two or more slave devices in which P2P communication connection is maintained with all other devices. , The priority of the new master device may be determined by the P2P communication speed.

Also, the P2P connection speed that determines the priority of the new master device may be determined by the order in which the slave device completes receiving response messages from all other devices via P2P communication.

On the other hand, the present invention is a web server that provides output content to a terminal connected to the web, and a device that connects to the web server and outputs the provided content, and is a preset area of the content. In a method of outputting content through a content output system including a plurality of devices for separately outputting the above, (A) the stage where the device is connected to the web server; (B) the device is the web. The stage of being connected to each other by P2P (Peer to Peer) communication on the real-time communication data channel (RTC Data Channel) through a web browser that supports real-time communication (WebRTC, Web Real Time Communication);
(C) A stage in which any one of the devices is set as a master device; (D) a stage in which the master device provides content synchronization information to a slave device to synchronize the output content; (E) Utilizing a web browser-based multi-device that is executed by the master device providing a sync synchronization signal and providing the slave device to the slave device, and the device outputs the content by the sync synchronization signal. Includes the content output method.

At this time, the P2P communication connection between the devices in the step (B) may be a connection of a full mesh topology.

The content synchronization information may be information indicating the order and start time of the output contents.

Further, the sync synchronization signal is a signal that synchronizes the output time points of specific frames constituting the output content, and may be generated and provided in preset time units.

Then, when the additional output data is included in the output content, (F) a step of generating an additional output data synchronization signal for synchronizing the output time of the additional output data and providing it to the slave device; (G). ) The device may further include a step of adding additional output data to the output content and outputting the additional output data synchronization signal.

Further, the additional output data may be subtitles or advertisement data.

Then, the present invention includes (H) a step of confirming a P2P connection state between the master device and each slave device in carrying out the steps (D) to (G); (I) the master device. When P2P communication of any one or more of the slave devices and the slave device is interrupted, the step of resetting the master device may be further included.

At this time, the setting and resetting of the master device may be performed in the order specified in advance.

Then, in the master device resetting in the first step (I), the device that recognizes the disconnection of the (I11) P2P connection is the remaining slave device excluding the master device and the slave device in which the P2P communication is disconnected from the master device. At the stage of transmitting the master setting request message to any one of the slave devices; (I12) The slave device receiving the master setting request message sends a response request message to all other devices including the master device through P2P communication. (I13) The device that received the response request message transmits the response signal to the device that transmitted the response request message through P2P communication; (I14) The response request message sage was transmitted. When the device receives the response signal from all the devices that sent the response request message, the stage of transmitting the master change request message to the master device; (I15) The master device that received the master change request message is the master change. A step of transmitting master reset information to the device that sent the request message and resetting the device that sent the master change request message to the master device; (I16) The device that sent the response request message requested a response. When a device that has not received a response signal occurs among the devices that have sent a message, the rest of the device excluding the master device, the slave device in which P2P communication with the master device has been interrupted, and the device for which the response signal has not been received. It may be carried out including a step of transmitting a master setting request message to any one of the slave devices.

Further, in the master device resetting in the first step (I), all the remaining devices except the master device and the slave device in which the P2P communication is disconnected from the master device by the device that recognizes the disconnection of the (I21) P2P connection. A stage in which a master setting request message is transmitted to a slave device; (I22) a stage in which a slave device receiving the master setting request message transmits a response request message to all other devices including the master device via P2P communication; (I23) A step in which the device that has received the response request message transmits a response signal to the device that has transmitted the response request message through P2P communication; (I24) The device that has transmitted the response request message has transmitted the response request message. When the response signals are received from all the devices, the stage of transmitting the master change request message to the master device; (I25) The device that received the master change request message first transmitted the master change request message. It may be executed including the step of transmitting the master reset information to the master device and resetting the device to which the master change request message is transmitted to the master device.

The content output system and method using the web browser-based multiple device according to the present invention as described in detail above can be expected to have the following effects.

That is, in the present invention, by setting the master device and the slave device among the devices constituting the multi-vision, sinking and synchronization between the multiple display devices can be performed without a separate control terminal. This has the effect of simplifying the system configuration and reducing costs.

Then, in the present invention, each device is connected by P2P based on a web browser, and there is an effect that synchronization and synchronization can be performed between the devices regardless of the driving OS of each device.

Further, in the present invention, since all the devices constituting the multi-vision can be set as the master device, when the connection between the master device and the slave device is released, the device having a good connection state can be reset as the master device. There is an effect that synchronization and synchronization between devices can be maintained stably.

FIG. 1 is a conceptual diagram showing a multi-vision configuration according to the prior art. FIG. 2 is a block diagram showing a specific embodiment of the content output system according to the present invention. FIG. 3 is a flowchart showing a specific embodiment of the content output method according to the present invention. FIG. 4 is a flowchart showing a specific example of the output synchronization method among the content output methods according to the present invention. FIG. 5 is a flowchart showing a specific example of the master device resetting method among the content output methods according to the present invention. FIG. 6 is a flowchart showing another embodiment of the master device resetting method among the content output methods according to the present invention. FIG. 7 is a diagram showing an example in which a content synchronization error occurs in the content output system according to the present invention. FIG. 8 is a diagram showing an example in which content synchronization and sync synchronization are performed in the content output system according to the present invention. FIG. 9 is a diagram showing an example in which additional output data is synchronized in the content output system according to the present invention.

In the following, a content output system and method using a web browser-based multiple device according to a specific embodiment of the present invention will be described with reference to the attached drawings.

Prior to description, the effects, features and methods of achieving this of the present invention will be clarified by the examples described in detail with the accompanying drawings. However, the present invention is not limited to the examples disclosed below, and may be embodied in various forms different from each other. However, the present embodiment completes the disclosure of the present invention, and the technique to which the present invention belongs. It is provided to fully inform those who have ordinary knowledge in the field of the scope of the invention, and the present invention is only defined by the scope of the claims.

In the description of the examples of the present invention, if it is determined that a specific description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted and described later. The term used is a term defined in consideration of the function in the embodiment of the present invention, and this may vary depending on the intention or practice of the user, the operator, and the like. Therefore, that definition should be made on the basis of the general content of this specification.

The combination of each block of the attached block diagram and each stage of the flowchart may be performed by a computer program instruction (execution engine), which is a general purpose computer, a special computer or other programmable data processing. Because it can be mounted on an on-board processor, its instructions performed through a computer or other programmable data processing-equipped processor generate means to perform the functions described at each block of the block diagram or at each stage of the flowchart. Will be done.

These computer program instructions can also be stored in computer-enabled or computer-readable memory that can be directed to a computer or other programmable data processing equipment to embody functionality in a particular manner. Instructions stored in computer-enabled or computer-readable memory can also produce manufactured items that include instructional means that perform the functions described at each block of the block diagram or at each stage of the flowchart.

And because computer program instructions can also be mounted on a computer or other programmable data processing equipment, a series of operating steps is performed on the computer or other programmable data processing equipment to perform the computer. Instructions that spawn a process to be performed in and perform a computer or other programmable data processing equipment shall provide steps to perform the functions described in each block of the block diagram and each stage of the flowchart. Is also possible.

Also, each block or stage can indicate a portion of a module, segment or code that contains one or more executable instructions to perform a specified logical function, in some alternative embodiments. It is also possible for the features mentioned in the block or stage to occur out of order.

That is, the two blocks or stages illustrated can be performed virtually simultaneously, or the blocks or stages can be performed in reverse order of their function as needed. Is.

Hereinafter, specific examples of the content output system and method using the multi-device based on the web browser according to the present invention as described above will be described in detail with reference to the attached drawings.

FIG. 2 is a block diagram showing a specific embodiment of the content output system according to the present invention, FIG. 3 is a flowchart illustrating a specific example of the content output method according to the present invention, and FIG. 4 is a flowchart showing a specific embodiment of the content output method according to the present invention. FIG. 5 is a flowchart illustrating a specific example of the output synchronization method among the content output methods according to the above, and FIG. 5 is a flowchart illustrating a specific example of the master device resetting method among the content output methods according to the present invention. FIG. 6 is a flowchart illustrating another embodiment of the master device resetting method among the content output methods according to the present invention.

First, as illustrated in FIG. 2, the content output system according to the present invention basically includes a web server 100 and devices 210, 220, 230, 240, ....

At this time, the web server 100 provides the output content to the devices 210, 220, 230, 240, ... Connected online, and may be composed of various types of servers, storage devices, and the like.

Then, the devices 210, 220, 230, 240, ... Are composed of a plurality of display devices constituting the multi-vision, and one content is divided and output.

For this purpose, each device 210, 220, 230, 240, ... Is designated by presetting an output area for dividing and outputting the contents according to the arrangement form.

For example, as shown in FIG. 2, when four devices 210, 220, 230, 240 are implemented in contact with each other vertically and horizontally, each device 210, 220, 230, 240 divides the content into four parts. The area corresponding to the array position is set in the output area.

Here, the devices 210, 220, 230, 240 are driven by an OS on which a web browser can be operated, and the web browser refers to a web browser that supports web real-time communication (WebRTC, Web Real Time Communication). As the OS, various OSs on which the web browser can be operated can be applied.

That is, even if the devices 210, 220, 230, and 240 are different types of equipment driven by different OSs, if each OS supports the same Web browser that supports WebRTC, the device constitutes the present invention. Can be adopted.

Along with this, the device according to the present invention may be composed of devices operated by different OSs, and the compatibility of system realization may be improved.

At this time, the device is divided into one master device and the remaining slave devices.

Any one of the devices may be set as the master device, and the master device may be changed to another device.

These master devices and slave devices are connected by P2P (Peer to Peer) communication through a real-time communication data channel (RTC Data Channel) 400 supported by WebRTC.

At this time, the connection between the devices 210, 220, 230, 240 is connected by a full mesh topology, that is, the device is all connected to all the other devices, respectively.

Along with this, when each device 210, 220, 230, 240 is first stun / tun connected to the web server 100, and the connection between the web browsers of each device 210, 220, 230, 240 is established, the following. No need to connect to an external network.

On the other hand, the master device generates content synchronization information, a sync synchronization signal, and an additional output data synchronization signal when the devices 210, 220, 230, 240 receive the output content and output it from the web server 100. Provide to slave devices.

The content synchronization information is information indicating the order of output contents and the start time point. Along with this, the master device and the slave device can output the same content at the same time point.

FIG. 7 shows an example in which content synchronization is not performed as described above, and different contents are output on each device.

On the other hand, the sync synchronization signal is a signal that synchronizes the output time points of specific frames constituting the output content, and the master device is generated in preset time units and provided to the slave terminal. ..

Along with this, each device can output the same frame at the same time point, and the output timing of each device constituting the multi-vision can be matched.

The additional output data synchronization signal is a synchronization signal for synchronizing the output time and position of the additional output data when the additional output data is included in the output content, and the additional output data is output. It is data that is added to and output from the content, meaning subtitles, catchphrases, etc., and can be added in a form that takes into account dynamic movement within the content.

The content synchronization information, the sync synchronization signal, and the additional output data synchronization signal as described above are provided by the master device to the slave device, and the content is output in a synchronized state.

In the following, various examples for setting and resetting the master device will be described.

First, in an example of the master device setting, the order in which the master device is designated for each device is already specified, and the first master device can be determined in the designated order.

On the other hand, the master device must basically maintain P2P connectivity with all slave devices. Therefore, the master device must be changed when the P2P connection between the master device and some or all of the slave devices is released.

Along with this, in the present invention, when the connection between the master device and some of the slave devices is released, the master device is changed and set.

At this time, as described above, the new master device may be set as the master device in the specified order.

Alternatively, the P2P communication connection is maintained with all the other devices by designating any one of the master device and the remaining slave devices excluding the slave device whose P2P communication is disconnected from the master device. The slave device can be set as a new master device by receiving the transfer of master authority from the master device.

In this case, the existing slave device whose P2P connection is released is excluded from the target of the new master device, so that the master device resetting process can be executed quickly.

On the other hand, in the master device resetting, the slave device having the best P2P connection state can be set as the new master device in consideration of the P2P connection state (speed) of each slave device.

That is, in the present invention, when the master device is reconfigured, the P2P communication connection is maintained with all other devices among the remaining slave devices except the master device and the slave device in which P2P communication is disconnected from the master device. When there are two or more slave devices, the priority of the new master device can be determined by the P2P communication speed.

At this time, the P2P connection speed that determines the priority of the new master device is determined by the order in which the slave device completes receiving the response message from all other devices through P2P communication.

A specific method of such a master device resetting process will be described later.

Hereinafter, the content output method using the multiple devices based on the web browser according to the present invention will be described in detail.

As illustrated in FIG. 3, a specific embodiment of the content output method according to the present invention begins with the devices 210, 220, 230, 240 being connected to the web server 100 (S100).

This is basically because each device 210, 220, 230, 240 must receive the output content provided by the web server 100.

Next, P2P linkage between the devices is performed (S200).

At this time, the connection between the devices is performed through the real-time communication data channel (RTC Data Channel) between the web browsers, and for this purpose, the web browser supports web real-time communication (WebRTC, Web Real Time Communication). Must be a web browser.

Therefore, the device may be a device driven by different OSs as long as the same web browser using the Web RTC protocol can be installed.

At this time, the P2P communication connection between the devices means the connection of the full mesh topology, and the connection of the full mesh topology means that any one device is the other. It means that it is connected to all the devices of.

Then, the master device is set so that the device is divided into a master device and a slave device (S300).

The master device may be designated so that the specific device is performed first, or may be set in the order set as described above.

Next, the master device provides content synchronization information to the slave device to synchronize the output content (S400).

At this time, the content synchronization means specifying the content output by each device, scheduling the order of the content when a large number of contents are continuously output, and specifying the output start time of the output content. For this purpose, the content synchronization information is information indicating the order and start time of the output contents.

The content synchronization process will be described in detail. As shown in FIG. 4, the master device generates the content synchronization signal and transmits it to the slave device (S410), and the slave that receives the content synchronization signal. The device generates a response message and sends it to the master device (S420, S430).

Along with this, the master device can receive the response message, confirm the content output ready state of the slave device, and confirm the P2P connection state of the slave device (S440).

Then, the output content is output, and the master device provides a sync synchronization signal to the slave device in preset time units to synchronize the sync of the output content (S500).

That is, the master device provides the slave device with a sync synchronization signal indicating the output time point of a specific frame of the output content, and the device outputs the content by the sync synchronization signal and outputs the content to all the devices. Output content sync is synchronized.

Explaining the sink synchronization process in detail, as shown in FIG. 4, the master device generated the sink synchronization signal and transmitted it to the slave device (S510), and received the sink synchronization signal. The slave device generates a response message and sends it to the master device (S520, S530).

At this time, since the sink synchronization signal is generated and transmitted in a preset time unit, the master device periodically receives the response message, confirms the P2P connection state of the slave device, and confirms the P2P connection state of the slave device. It is possible to confirm whether or not the slave device has been disconnected (S540).

Of course, in this case, the slave device can also confirm the presence / absence of the display with the master device by the presence / absence of the periodic sync synchronization signal reception.

On the other hand, when the additional output data is included in the output content, the master device synchronizes the output time and position of the additional output data in order to synchronize the additional output data between the devices. The additional output data synchronization signal of is generated and provided to the slave device (S600).

At this time, the additional output data may be typically text data such as subtitles or advertisements inserted in the output content, and such additional output data has a relatively dynamic movement with respect to the output content. It can be added in a seasoned form.

Then, the master device and the slave device output the additional output data by adding the additional output data to the output content by the additional output data synchronization signal (S700).

Next, the process of resetting the master device when a display occurs between the master device and the slave device will be described in detail.

Therefore, in outputting the output content, the present invention continuously confirms the P2P connection state between the master device and each slave device.

At this time, confirmation of the P2P connection state can be determined by whether or not the sync synchronization signal is received (slave device) and whether or not a response message is received (master device).

Along with this, when the P2P communication of any one or more of the master device and the slave device is disconnected, the master device is reset.

The method of resetting the master device is roughly classified into three examples in the present invention.

The first embodiment of resetting the master device is an embodiment in which the master device is determined in the order specified.

That is, if a display occurs while the device specified as the first is set as the master device, the device specified as the second is reset to the master device and the device specified as the second is set as the master device. When a display occurs in this state, the device designated as the third device is reset to the master device.

The second embodiment of reconfiguring the master device is an embodiment of eliminating the device in which the display has occurred and setting the slave device in which the P2P communication connection is completely maintained as the new master device among the remaining devices. ..

More specifically, as shown in FIG. 5, when the occurrence of perception is detected in a specific device (S810), a master setting request message is transmitted to another slave device (S820).

At this time, the other slave device refers to the current master device and the remaining slave devices excluding the slave device in which P2P communication with the current master device is interrupted.

After that, the slave device that has received the master setting request message (S910) transmits the response request message to all other devices including the master device through P2P communication (S920).

Along with this, the device that has received the response request message transmits the response signal to the device that has transmitted the response request message through P2P communication (S922, S924).

After that, the device that has transmitted the response request message receives a response signal from the device that has transmitted the response request message, and confirms the P2P connection state (S920).

That is, when the device that sent the response request message receives the response signal from all the devices that sent the response request message, the device that sent the response request message is in a state where the P2P connection is maintained with all the other devices. In this case, a master change request message is transmitted to the master device (S940).

At this time, the master change request message is a message requesting the master device to transfer the master device authority, and the master device that has received the master change request message resets the master to the device that sent the master change request message. The device that transmits the information (S950, S960) and transmits the master change request message receives the master reset information and is reset to the master device (S970).

On the other hand, when the device that sent the response request message has a device that has not received the response signal among the devices that have sent the response request message, this is a display between the device that sent the response request message and another device. In this case, the device that sent the response request message excludes the master device, the slave device in which P2P communication with the master device is interrupted, and the device in which the response signal has not been received. A master setting request message is transmitted to any one of the remaining slave devices (S980).

Along with this, the slave device that has received the new master setting request message repeatedly executes the 910th to 980th steps to set a new master device.

According to such an embodiment, the master device can be reset quickly by reconfirming the P2P connection state and resetting the master device except for the device in which the display occurs in the master device resetting process. Not only that, the stability of the P2P connection state by the newly set master device can be ensured.

Next, in the third embodiment of reconfiguring the master device, not only the device in which the display has occurred is eliminated, but also the slave device in which the P2P communication connection state is best maintained among the remaining devices is used as the new master device. In the embodiment set to, the slave device in which the best connected state is maintained can be set as the new master device in consideration of the P2P connected state (speed).

More specifically, as shown in FIG. 6, the device (slave device 2) that recognizes the occurrence of Disconnection excludes the master device and the slave device in which P2P communication with the master device is interrupted. A master setting request message is transmitted to all the remaining slave devices (slave devices 1 and 3) (1.1).

After that, the slave device that has received the master setting request message transmits the response request message to all other devices including the master device through P2P communication (1.2, 2.2).

Then, each device that has received the response request message transmits a response signal to each received response request message through P2P communication (1.3, 2.3).

After that, when the device that sent the response request message receives the response signal from all the devices that sent the response request message, the master change request message is transmitted to the master device (3.1).

At this time, the fact that the slave device transmits the master change request message means that the P2P connection between the slave device and all other devices is maintained.

On the other hand, the master device transmits master reset information to the device in which the master change request message is first received among the received master change request messages, and resets the corresponding device to a new master device (3. 2).

That is, even if the master change request message is received from two or more slave devices, the P2P connection state of the device for which the master change request message is first received is the best (transmission speed is good). To reflect the above, the slave device with the best P2P connection state is reset to the new master / slave so that the synchronization result can be maintained at the highest level.

The rights of the present invention are not limited to the above-described embodiments, but are defined by those described in the claims, and a person having ordinary knowledge in the field of the present invention is within the scope of claims stated in the claims. It is self-evident that it can be transformed and adapted in various ways.

In embodying a multi-vision display system, the present invention is a web browser platform in which each device is connected by P2P communication based on a web browser without a separate control device to synchronize output content sync and schedule between each device. The present invention relates to a content output system and method using multiple devices of the above, and according to the present invention, for separate control by setting a master device and a slave device among the devices constituting the multi-vision. By allowing synchronization and synchronization between multiple display devices without a terminal, the system can be easily configured and the cost can be reduced.

100: Web server 210: Device 1
220: Device 2
230: Device 3
240: Device 4
300: Local network 400: Real-time communication data channel

Claims (15)

With a web server that provides the output content to a web-connected terminal;
A device that connects to the web server and outputs the provided content, including a plurality of devices that each output a preset area of the content;
The device
A web browser that supports web real-time communication (WebRTC, Web Real Time Communication) is in operation;
With a master device that generates and provides content synchronization information that specifies the time-series order of the output content and a sync synchronization signal that specifies the output timing of the output content;
A content output system using a web browser-based multiple device, which is classified into slave devices that output content according to the content synchronization information and the sync synchronization signal provided from the master device. The content output using the web browser-based multiple device according to claim 1, wherein the device is linked to all different devices and communication between web browsers in a full mesh topology. system. The content output system using a web browser-based multiplex device according to claim 2, wherein the devices are connected to each other by P2P (Peer to Peer) communication through a real-time communication data channel (RTC Data Channel). The content output system using the web browser-based multiplex device according to claim 3, wherein the content synchronization information is information indicating the order and start time of the output contents. The fourth aspect of claim 4 is that the sync synchronization signal is a signal that synchronizes the output time points of specific frames constituting the output content, and is generated and provided in preset time units. A content output system that uses the described web browser-based multiple devices. When the output content includes additional output data, the master device generates an additional output data synchronization signal for synchronizing the output time and position of the additional output data and provides the slave device with the additional output data synchronization signal. A content output system using the web browser-based multiplex device according to claim 5. The content output system using the web browser-based multiplex device according to claim 6, wherein the additional output data is subtitles or advertisement data. Claims 1 to 1, characterized in that, when P2P communication of any one or more of the master device and the slave device is interrupted, any one of the slave devices is reset to the master device. A content output system using the web browser-based multiplex device according to any one of claims 7. A web server that provides output content to a web-connected terminal and a device that connects to the web server and outputs the provided content, and divides a preset area of the content into each. In a method of outputting content through a content output system that includes multiple devices for output
(A) When the device is connected to the web server;
(B) A stage in which the devices are connected to each other by P2P (Peer to Peer) communication on a real-time communication data channel (RTC Data Channel) through a web browser that supports web real-time communication (WebRTC, Web Real Time Communication);
(C) At the stage of setting any one of the above devices as the master device;
(D) At the stage where the master device provides content synchronization information to the slave device to synchronize the output content;
(F) A stage in which the master device provides a sync synchronization signal to the slave device, and the device outputs content by the sync synchronization signal;
A content output method using multiple devices based on a web browser, which is characterized by including. The content output method using a web browser-based multiple device according to claim 9, wherein the P2P communication connection between the devices in the step (B) is a connection of a full mesh topology. The content output method using a multiple device based on a web browser according to claim 10, wherein the content synchronization information is information indicating the order and start time of the output contents. The eleventh claim is characterized in that the sync synchronization signal is a signal that synchronizes the output time points of specific frames constituting the output content, and is generated and provided in preset time units. A content output method using the described web browser-based multiple devices. When the output content contains additional output data
(F) A stage in which an additional output data synchronization signal for synchronizing the output time and position of the additional output data is generated and provided to the slave device;
(G) A stage in which the device adds additional output data to the output content and outputs the additional output data synchronization signal;
The content output method using a web browser-based multiplex device according to any one of claims 9 to 12, wherein the content is further included. The content output method using a web browser-based multiplex device according to claim 13, wherein the additional output data is subtitles or advertisement data. (H) In carrying out the first (D) to (G) steps, a step of confirming the P2P connection state between the master device and each slave device;
(I) When the P2P communication of any one or more of the master device and the slave device is interrupted, the stage of resetting the master device;
The content output method using a web browser-based multiple device according to claim 13, further comprising.

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