JP2005198243A - Method for providing shared content-viewing service and system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an effect equivalent to that for watching a moving video image content off-line together with the other user, through communications of mutual opinions, via chatting messages during the watching of the moving video image by a user etc., using a VOD (Video-On-Demand) service. <P>SOLUTION: This method comprises steps of receiving a chatting room establishment request information from a user: setting up a chatting room: receiving a participation request information for the set-up chatting room from at least one another user: receiving moving video image content selection information from among at least one user among users participated in the set-up chatting room: transmitting the selected content data to clients such as all the users participating in the chatting room, etc.: synchronizing a content reproduction time for all of clients: and controlling the transmission/reception of a chatting message transmitted by the user participated in the chatting room during content reproduction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a content collaborative viewing service providing method and system, and more particularly, to enable a plurality of users to view the same moving image at the same time and to perform chatting among joint viewing users. Thus, the present invention relates to a method and system that can provide the same realism as watching a moving image together offline.

  Conventionally, moving image contents such as movies and animations are generally provided through media such as TV broadcasts and videos.

  However, as content transmission technology over the Internet develops, the provision of moving image content such as movies and animations in the VOD (Video On Demand) format is gradually increasing. Recently, not only a VOD service but also a service that provides public wave broadcasting in real time is also provided.

  The Internet VOD service has a more convenient advantage than viewing content through video or public wave broadcasting because it can view desired content at a desired time.

  However, due to the limitation of the content transmission speed over the Internet, it is impossible to provide high-quality content such as public wave broadcasting or video, and in most cases, it is through a personal computer (hereinafter abbreviated as PC) alone in his room. Since watching the VOD cannot provide the enjoyment of watching together, there is still not much demand like public waves and video.

  In order to solve the problems of the VOD service as described above, research on content transmission technology has been continuously conducted, and if the data is simply requested, the method of transmitting the content is separated from the method of transmitting the content. Research has been done on methods to provide.

  The present invention is to solve the problem that the enjoyment of watching together among the problems of the VOD service as described above, and a user who uses the VOD service can chat while watching a moving image. The present invention relates to a moving picture content providing method that provides the same effect as watching a moving picture content together offline by transmitting mutual opinions through a tin message.

  In the present invention, in order to solve the problems of the prior art as described above, users participating in a chatting room or a screening theater can exchange opinions through a chatting message while watching the same moving image content. A content joint viewing service providing method and system are to be provided.

  Another object of the present invention is to provide a content joint viewing service providing method and system that can synchronize the playback time of content to be jointly viewed.

  In order to achieve the above object, according to a preferred embodiment of the present invention, at least one of the step (a) of receiving a chatting room establishment request information from a user and establishing a chatting room is provided. (B) receiving participation request information for the established chatting room from two other users, and selecting moving image content from at least one of the users participating in the established chatting room Receiving the information and transmitting the selected content data to a client or the like of all users who participated in the chatting room; The step (d) of transmitting a playback start signal to a client or the like, and the user participating in the established chatting room Monitoring the playback time information of the client etc. and the occurrence of buffering and synchronizing the content playback time of all user clients, etc. (e), and the use that participated in the chatting room during the playback of the content There is provided a moving image joint viewing service providing method including a step (f) of controlling transmission / reception of a chatting message transmitted by a person or the like.

  According to another embodiment of the present invention, receiving the joint viewing room opening request information from the user and opening the room (a), and the opening from at least one other user Step (b) of receiving participation request information for the chatting room, providing the selected content data to the user etc. participating in the established room, and the buffering state of the user etc. participating in the room manager client And (c) transmitting a content reproduction start message transmitted from the room length client to a user who has participated in the chatting room, and a user who has participated in the chatting room during content reproduction. A step (d) for controlling transmission / reception of a message to be transmitted, and for clients participating in the common viewing room Provides a cutting-related interface, a content player for content playback is installed, and the room manager client periodically transmits the current content playback time information to other clients who participated in the room and participated in the room Other clients and the like are provided with a moving image joint viewing service providing method that synchronizes the content playback time based on the playback time of the room length client.

  According to the moving image joint viewing service providing method according to the present invention, users who participate in the chatting room or the theater can exchange opinions through the chatting message while watching the same moving image content. There is an advantage that you can enjoy watching together while using the VOD service.

  Furthermore, by continuously checking the content playback time and buffering occurrence of user clients during joint viewing, etc., and synchronizing the content playback time, the realism of watching the same moving image can be enhanced. There is a point.

  First embodiment

  FIG. 1 is a diagram showing a configuration of a moving image joint viewing system according to a first embodiment of the present invention.

  As shown in FIG. 1, the moving image joint viewing system according to an embodiment of the present invention includes a web server 100, a chat server 102, a content server 104, a billing server 106, and a plurality of user clients 108, 110, 112, 114 can be included. In FIG. 1, the web server 100 receives moving picture joint viewing request information from user clients 108, 110, 112, 114. The web server 100 provides a web page that allows a user to request a moving image joint viewing, and the user can request a moving image joint viewing by clicking a menu on the web page using an interface such as a mouse.

  According to an embodiment of the present invention, a moving image joint viewing service is provided so that a user can open a chatting room and view a moving image while chatting with other users.

  According to another embodiment of the present invention, there may be provided a service that allows a plurality of users to view a moving image starting at a specific time, such as an offline theater. In this case, a moving picture showing timetable is provided on the web page, and a user can request a desired moving picture viewing at a desired showing time through the web page. Can be provided. At this time, it is preferable that a chatting service between the co-viewers and the like is provided so that the user or the like can realize that the co-viewing is being performed. Furthermore, since a plurality of users and the like are provided with a service at a specified time at the same time, the service can be provided at a lower cost than a general VOD (Video On Demand) service.

  According to still another embodiment of the present invention, a joint viewing service may be provided in the form of joint purchase. For example, if more than a preset number of collaborative viewing users gather, the video VOD service is provided to a plurality of users at a lower cost than a general video VOD service.

  It will be apparent to those skilled in the art that the moving image can include all movies, animations, dramas and the like. Furthermore, in the above-described embodiment, the description is limited to the case of the VOD service. However, the joint viewing service according to the present invention may be applied to the case of real-time broadcasting that is not VOD.

  According to the present invention, a message can be exchanged with another joint viewing user or the like through chatting even when watching a moving image alone, so that there is an advantage that the interest in watching a moving image can be doubled. .

  The chat server 102 has a function of relaying a chatting message of a joint viewing user or the like and managing a user or the like who is viewing the joint viewing. A message transmitted by a user or the like during viewing of a moving image is transmitted to another joint viewing user or the like through the chat server 102. According to another embodiment of the present invention, the chat server 102 may connect only the sessions of the joint viewing user or the like, and the chatting message may be transmitted in the P2P method.

  Further, the chat server 102 has a function of controlling the reproduction time synchronization of the moving images to be viewed together. In order for the joint viewing to be substantially realized, all users who participate in the joint viewing must watch the same screen at the same time. If the playback times of the moving images do not match, the contents of the moving images may be known in advance through chatting, or the contents of the moving images spoken by the user may not match. Accordingly, the chat server 102 continuously checks the reproduction time of each co-viewer and the like and whether or not the buffering occurs, and synchronizes the moving image reproduction times of all the co-viewer users. A detailed method by which the chat server 102 synchronizes the moving image playback time will be described later with reference to the accompanying drawings.

  In the user client 108, 110, 112, 114, a moving image content player equipped with a chatting module is installed to transmit a chatting message between co-viewers. The moving image content player installed in the user client 108, 110, 112, 114 inputs not only the window for displaying the reproduced moving image but also the window for displaying the chatting message and the chatting message. Windows can be provided. Furthermore, in order to synchronize the playback time of the moving image, the installed video player transmits the playback time information of the moving image to the chat server 102 at a preset time interval, and if buffering occurs, buffering occurs. Is transmitted to the chat server 102.

  The content server 104 stores moving image content, and provides the corresponding content at the request of the joint viewing user client. When the co-viewing user requests content using the web page provided by the web server 100, the web server 100 provides the address information of the content server storing the corresponding content and is installed in the user client. The player requests content data from the content server corresponding to the provided address information and downloads this data.

  According to embodiments according to the present invention, a web server or a database coupled to the web server may store content.

  Further, although one content server is shown in FIG. 1, a plurality of content servers are provided, and a user client can receive content data from a plurality of servers in a parallel / distributed manner. In addition, the content server does not necessarily need to be a server provided by the service provider, and may be another user client that stores the corresponding content, and the client requesting the content receives P2P from another user client. You can also download content using this method.

  The beer server 106 performs a billing process for moving image content. The beering server 106 operates in conjunction with the web server 100, and performs a settlement process in response to a user's request when the user requests settlement for content through the web server.

  FIG. 2 is a flowchart illustrating a flow of a moving picture joint viewing service providing method according to an exemplary embodiment of the present invention.

  As shown in FIG. 2, the user first generates a chatting room. Here, the chatting room may be a chatting room for joint viewing. Apart from this, a general chatting room may be provided with a menu capable of requesting moving image joint viewing.

  The user who established the chatting room invites the user to view the joint view (S202), and other users may participate by watching the room title of the established chatting room without receiving an invitation message. It will be apparent to those skilled in the art that this is possible.

  When the invited user participates in the chatting room in response to the invitation message (S204), the video content to be jointly viewed is selected (S206).

  When the moving image content is selected, a charging process procedure for the selected content is performed (S206). FIG. 2 illustrates a case where content is selected and charged after the chatting room is opened, but content selection and charging may be performed while the chatting room is opened.

  When the selection and billing of the content are completed, the users in the chatting room appreciate the selected content together (S208). Users can exchange chatting messages through the chat server at the same time as viewing the content. Furthermore, the chat server continuously checks the content playback time of a user or the like who watches in the same chatting room, and controls the playback time to be synchronized.

  Although not shown in FIG. 2, the reproduction of the content is started when content data having a size larger than a preset size is buffered in a client such as a user who performs joint viewing. Furthermore, when a request for participation in the chatting room is made, a speed check procedure may be performed. As a result of the speed check, it is preferable that only users having a speed higher than a preset speed are allowed to enter the chatting room. This is because, when the content reception speed of one client, which is a problem such as a network state or hardware specification, is significantly reduced, it can affect the content viewing of other clients.

  FIG. 9 is a view illustrating a screen configuration of a moving image content player capable of performing chatting and content viewing together according to an exemplary embodiment of the present invention.

  As shown in FIG. 9, the content player screen may include a moving image playback screen 900, an avatar screen 902, a chatting message screen 904, an interactive input box 906, and an input interface screen 908.

  Apart from the general video content player, the video content player according to an embodiment of the present invention further includes an avatar screen 902, a chatting message screen 904, and an interactive input box 906.

  A user who views a moving image can input a message to be sent to another user who performs joint viewing in the dialog input box 906, and the transmitted message is displayed on the chatting message screen 904.

  FIG. 9 is merely an example of the screen configuration, and it is obvious to those skilled in the art that the layout of the screen can be changed in various ways and an additional screen can be provided. is there.

  FIG. 3a is a flowchart illustrating a flow of a moving picture joint viewing service providing method according to an embodiment of the present invention.

  The joint viewing service of FIG. 3a is an introduction of the offline theater concept online. As shown in FIG. 3a, the user first connects to a web page that provides the online theater service (S300).

  The online theater web page displays the moving image content and the screening time to be displayed at each theater, and the user selects the theater by referring to the displayed information (S302). If the user selects a theater, the billing procedure is advanced (S304).

  When charging is completed, the user connects to the web page corresponding to the selected theater (S306). The screening web page preferably provides a chatting service so that a user or the like who enters the screening theater can exchange messages before playing video content.

  The user who enters the screening hall will be in a standby state until the preset moving picture screening time is reached (S310). When it is time for the moving image to be displayed, a content player such as a user who has entered the movie theater plays the moving image content at the same time (S312).

  FIG. 10 is a view illustrating a screen configuration of a moving image content player according to another embodiment of the present invention.

  When the theater concept is introduced, a moving picture content player having a screen configuration shown in FIG. 10 different from FIG. 9 may be used.

  Referring to FIG. 10, an avatar of a user or the like who performs joint viewing may appear in the lower part of the content player, and a message exchanged by the joint viewer or the like may be provided in a balloon shape.

  In addition, by enabling the user to adjust the avatar's facial expression and movement, and adjusting the avatar's facial expression and movement from interesting or sad scenes, the same realism as watching moving images offline can be enhanced. Can do.

  FIG. 3b is a flowchart illustrating a flow of a method for providing a joint video viewing service according to another embodiment of the present invention.

  The moving picture joint viewing service in FIG. 3C is a case where the concept of joint purchasing is introduced and joint viewing starts when a preset number of people gather.

  Referring to FIG. 3b, the user opens a screening hall for joint viewing (S320), and selects moving image content for joint viewing (S322). The selection of moving image content may be made at the same time as the opening of the moving image screening hall.

  It is determined whether or not more than a preset number of people participate in the established joint screening hall (S326) .If more than the preset number of members do not participate, the users who participated in the joint screening hall are on standby. (S324).

  If it participates in the joint screening hall opened by the preset personnel, the billing process for the moving image content is performed (S328).

  When the billing process is completed, the content player such as a user who participates in the screening hall starts content reproduction at the same time (S330).

  In the case of FIG. 3a and FIG. 3b as well, content reproduction is started when content data of a size larger than a preset size is buffered by a client such as a user who performs joint viewing. Further, when the content reception speed of the client requesting the speed check result joint viewing is equal to or less than a preset threshold value, the content viewing of the corresponding user client may be disabled.

  FIG. 4 is a diagram showing a module configuration of the web server according to the first embodiment of the present invention.

  As shown in FIG. 4, the web server according to an embodiment of the present invention may include a web page providing module 400, a joint viewing participation request processing module 402, a content request processing module 404, and a billing processing module 406. It can be connected to the joint viewing user database 410.

  In FIG. 4, the web page providing module 400 has a function of providing a web page that allows a user or the like to obtain information on the joint viewing and request the joint viewing.

  The joint viewing participation request processing module 402 has a function of processing a user request for the joint viewing. When the user requests participation in the chatting room, the joint viewing participation request processing module 402 uses the information stored in the joint viewing user database to provide information on the currently opened chatting room. .

  When a user or the like requests content to be jointly viewed, the content request processing module 404 provides the address of the content server storing the content and the identification number of the requested content to the client who has requested the content. A client or the like that receives the information connects to the corresponding content server and downloads the content.

  As described above, a separate content server may not be provided, and the web server may directly provide content.

  The billing processing module 406 processes settlement for content through communication with the beer server.

  The joint viewing user database 410 stores information for users who are jointly viewing or waiting for joint viewing. Users can directly connect to the database 402 and receive information, or receive information stored in the database 402 through a web server, and information on the established chatting room or theater. Can see.

  FIG. 5 is a diagram illustrating a module configuration of the chat server according to the first embodiment of the present invention.

  As shown in FIG. 5, the chat server according to the embodiment of the present invention includes a message relay module 500, a joint viewing user management module 502, a joint viewing condition determination module 504, a moving image start message transmission module 506, and a playback time monitoring module 508. And a playback time synchronization module 510, and the chat server is also connected to the co-viewing user database 410 like a web server.

  In FIG. 5, the message relay module 500 has a function of transmitting a message or the like input in a standby state while a joint viewing user or the like is watching a moving image or before watching a moving image. The message relay module 500 can relay a chatting message in the same manner as a general chatting service. As described above, the chatting message may be transmitted by the P2P method. In this case, the message relay module 500 may not be provided.

  The joint viewing user management module 502 has a function of managing information for users who participate in the joint viewing. The joint viewing user management module 502 receives the joint viewing participation request information directly from the user client or through the web server, or when the joint viewing of the specific user is completed, the corresponding information is stored in the joint viewing user database. Update to

  The joint viewing condition determination module 504 has a function of determining whether or not the joint viewing state can be started. When the moving image joint viewing service is provided through the chatting room, the joint viewing condition determination module 504 determines whether a client such as a user who has participated in the chatting room has buffered content data larger than a preset size. Judge whether or not.

  When the moving image joint viewing service is provided through the concept of the screening hall, the joint viewing condition determination module 504 determines whether or not the screening time has been set in advance, and the users who have participated in the screening hall exceed the predetermined size. It is determined whether or not the content data has been buffered.

  When the video joint viewing service is provided by the joint purchasing method, the joint viewing condition determination module 504 determines whether or not a predetermined number or more of the members have participated in the screening hall, or a user who has participated in the predetermined setting. It is determined whether or not the content data has been buffered beyond the specified size.

  When the joint viewing condition determination module 504 determines that the joint viewing condition is ready, the playback start message transmission module 506 sends a playback start message to clients of all users who participate in the same chatting room or theater. Transmit at the same time. The moving image content player installed in the client starts content playback in response to the playback start message, so that a plurality of user clients and the like can start content playback at the same time.

  The playback time monitoring module 508 receives information on the current content playback time from a moving picture content player installed in the user client at a preset time interval. Although all user clients start playback of content simultaneously by the playback start message transmission module, there may be a difference in content playback time because there is a difference in the network connection state and data processing speed of each client. Accordingly, the playback time monitoring module 508 continuously checks the content playback time of the user client or the like, and if the playback time of the specific client is different from the normal playback time by a predetermined threshold or more, the playback time Requests the synchronization module 510 to synchronize playback time.

  The playback time synchronization module 510 plays back when the playback time of a specific client is different from the normal playback time among clients receiving joint viewing content or when buffering occurrence information is received from the specific client. Has the function of synchronizing time.

  According to an embodiment of the present invention, the playback time synchronization module 510 skips a part of a moving image corresponding to the delayed playback time when the playback time is delayed due to buffering or data processing delay. In this way, the playback times of all clients during the joint viewing are synchronized.

  According to another embodiment of the present invention, the playback time synchronization module 510 may temporarily stop playback of content from other clients when the playback time of a specific client is delayed due to buffering or data processing delay. Synchronize the playback time of all clients during joint viewing. A more detailed reproduction time synchronization procedure will be described later with reference to the accompanying drawings.

  FIG. 6 is a diagram illustrating a module configuration of the moving image content player according to the first embodiment of the present invention.

  As shown in FIG. 6, the moving image content player according to the first embodiment of the present invention includes a content decoding module 600, a cache control module 602, a user interface module 604, a joint viewing user display module 606, and a playback preparation. A message transmission module 608, a reproduction time transmission module 610, and a message transmission / reception processing module 612 can be included.

  The content decoding module 600 decodes moving image content data transmitted from the content server. The meta information of the moving image content data includes information on content encoding (Encoding), and the content decoding module 600 decodes the received content data using a decoding algorithm corresponding to the encoding method.

  The cache control module 602 has a function of controlling storage of received content data. The content data is stored in the cache in advance and decoded, and the cache control module 602 controls the storage of the previously received content data in this way.

  The user interface module 604 has a function of recognizing a user's request when the user clicks a button provided on the moving image content player. For example, the content player includes buttons that can adjust the size of the screen, the size of the volume, and the like, and the user interface module 604 recognizes information requested by the user and performs a corresponding process.

  The co-viewing user display module 606 receives information from the co-viewing user database, and displays the user information participating in the currently open chatting room or theater.

  The reproduction preparation message transmission module 608 transmits a message that the preparation for reproduction is completed to the chat server when content data having a size larger than a preset size is buffered before the reproduction of the content. The moving image start message transmission module of the chat server described above transmits the moving image reproduction start message after receiving the reproduction preparation message from the clients of all users participating in the joint viewing.

  The reproduction time transmission module 610 transmits the reproduction time of the content being reproduced at a preset time interval to the chat server. Furthermore, when buffering occurs, the playback time transmission module 610 transmits buffering occurrence information to the chat server regardless of a preset time interval.

  The message transmission / reception processing module 612 transmits a message input by the joint viewing user to the dialog input box to another joint viewing user, or receives and displays a message transmitted by another joint viewing user. Have As described above, the message can be relayed through the chat server, or can be transmitted and received by the P2P method.

  FIG. 7a is a flowchart illustrating a procedure for synchronizing playback times when playback times do not match according to the first embodiment of the present invention, and FIG. 7b illustrates playback when buffering occurs according to the first embodiment of the present invention. It is the flowchart which showed the synchronization procedure of time.

  FIGS. 7a and 7b show a case where the playback time is synchronized by skipping a part of the moving image when the playback time of the specific client is delayed or buffering occurs. .

  Referring to FIG. 7a, the playback time transmission module of the content player transmits the playback time of the current content to the chat server at a preset time interval (S700).

  After receiving the transmitted playback time information, the chat server determines whether there is a difference between the reference time and a preset threshold value or more (S702). If the playback time is different from the reference time by a predetermined threshold or more, the chat server transmits a playback time mismatch signal to the corresponding client (S704). The reproduction time mismatch signal includes information on the current reference time.

  When the reproduction time mismatch signal is received from the chat server, the content player calculates the moving picture skip time (S706). The content player can calculate the skip time considering the reference time and the current data reception speed.

  When calculating the skip time, a table for the data size due to the difference between the playback time and the reference time may be used, and a preset skip time using the difference between the playback time and the reference time and the current data reception speed as variables. A calculation algorithm may be used. It will be apparent to those skilled in the art that the skip time can be calculated in various ways using delayed time information as compared to the data reception speed and the reference time.

  FIG. 7a illustrates the case where the content player calculates the skip time, but it will also be apparent to those skilled in the art that the skip time may be calculated at the chat server or another server.

  The calculated skip time is transmitted to the chat server (S708), and the content player requests and buffers data corresponding to the playback start time (reference time + calculated skip time) from the content server (S710).

  The chat server transmits a playback start signal to the content player of the client after the skip time has elapsed from the time when the information about the skip time is received (S712), and the content player of the client that has received the playback start signal plays the content. It resumes (S714).

  FIG. 7a shows a case where the chat server that has received the skip time transmits a playback start signal. However, after calculating the skip time, it is also possible to automatically resume playback at the playback start time by using a timer provided in the user client without receiving separate information from the chat server.

  Referring to FIG. 7b, the content player determines whether or not buffering occurs (S750). If buffering occurs, the content player transmits buffering occurrence information to the chat server (S752). As described above, the detection of the occurrence of buffering can be performed regardless of the time interval for transmitting the playback time.

  The chat server that has received the buffering occurrence information transmits information on the current reference playback time to the content player (S754).

  The content player calculates the moving image skip time using the received reference time information and the current data reception speed information (S756). The skip time can also be calculated in the same manner as described above. Further, as described above, the skip time may be calculated at a chat server or other server.

  The content player transmits the calculated skip time to the chat server (S758), requests the content server for data corresponding to the playback start time (reference time + calculated skip time), and buffers it (S760).

  The chat server transmits a playback start signal to the content player of the client after the skip time has elapsed from the time when the information about the skip time is received (S762), and the client content player that has received the playback start signal resumes content playback. (S764). Even in the case of synchronization by buffering, as described above, it is also possible to resume playback by using the self-timer of the user client without receiving a playback start signal from the chat server.

  FIG. 8a is a flowchart showing a procedure of reproducing time synchronization when the reproducing times become different according to another first embodiment of the present invention, and FIG. 8b shows another first of the present invention. 6 is a flowchart illustrating a playback time synchronization procedure when buffering occurs according to an embodiment.

  FIGS. 8a and 8b show that, when the playback time of one or more clients among the user clients etc. during joint viewing is delayed or buffering occurs, content playback of other clients etc. is temporarily performed. This shows a case where the playback time is synchronized by canceling.

  Referring to FIG. 8a, the content player transmits information on the current playback time to the chat server at a preset time interval (S800).

  The chat server that has received the playback time information determines whether or not the playback time of the client is different from the reference playback time by a predetermined threshold or more (S802).

  If the playback time is different from the reference time by a predetermined amount or more, the chat server transmits a playback stop signal to another client such as a joint viewing user (S804). At this time, the chat server sets a value obtained by subtracting the reproduction time of the client whose reproduction time is delayed from the reference time as the reproduction stop time. The client that has received the playback stop signal from the chat server stops the playback of the content.

  If the playback stop time set from the time when the playback stop signal is transmitted elapses, the playback start signal is transmitted to the client or the like that has received the playback stop signal (S806).

  Referring to FIG. 8b, the content player determines whether buffering occurs during content playback (S850). As described above, the occurrence of buffering is preferably determined regardless of the time interval for transmitting the reproduction time.

  When buffering occurs due to a network state drop or the like, the content player transmits information to the chat server that buffering has occurred (S852).

  When the buffering occurrence information is received from at least one client among the joint viewing clients, the chat server transmits a reproduction stop signal to the other client such as the joint viewing user (S854). The client or the like that has received the playback stop signal stops playback of the content until the playback start signal is transmitted.

  The content player continuously determines whether or not the buffering is released (S856). When the buffering is released, the content player transmits a buffering release signal to the chat server (S858).

  The chat server that has received the buffering release signal transmits a playback start signal to the client or the like that has received the playback stop signal (S860).

Second Embodiment The first embodiment described above relates to a case where synchronization is performed based on a chat server. The second embodiment, which will be described later, relates to a case where synchronization is performed based on the content reproduction time of the room length client of the moving image joint viewing room. Unlike the first embodiment, in the second embodiment, the chat server relays only chatting messages between co-viewers or status information related to content reproduction, and does not participate in substantial synchronization.

  In the second embodiment, the configuration of the moving image joint viewing system is the same as that of FIG. 1 of the first embodiment. Also in the case of the second embodiment, the moving image joint viewing system includes the web server 100, the chat server 102, the content server 104, the beering server 106, and a plurality of user clients 108, 110, 112, and 114.

  In the second embodiment, the role of the web server 100 is the same as that in the first embodiment.

  That is, the web server 100 provides a web page that allows a user to request a moving image joint viewing service. As shown in FIG. 2, the web server is connected to the state information database, and provides room information established for viewing moving images and state information of each room (moving images to be viewed, participant information).

  The chat server 102 has a function of relaying a chatting message between users and the like who participate in the same moving image joint viewing room. In the second embodiment, state information regarding content reproduction is periodically exchanged between users who participate in the same moving picture joint viewing room. The chat server 102 also performs a function of relaying not only chatting messages but also status information related to content reproduction. As described above, in the second embodiment, the chat server 102 is only responsible for relaying messages or status information, and is not involved in synchronization.

  Furthermore, the chat server 102 has a function of managing status information of each common viewing room. When there is a state change such as a new participant joining or a room being opened, the chat server 102 detects this. Like the web server 100, the chat server 102 is connected to the co-viewing user database, and provides state change information to the co-viewing user database so that the information is updated.

  Each user client 108, 110, 112, 114 that is provided with the joint viewing service is provided with a content player that supports the moving picture content reproduction and chatting message relay functions. Similar to the first embodiment, the content player includes a window for displaying a chatting message and a window for inputting and displaying the chatting message. In the second embodiment, the content player has a function of synchronizing the content playback time between joint viewing users and the like. For this purpose, the content player includes a playback time synchronization module.

  In the first embodiment, the substantial control over the playback time synchronization is performed by the chat server. In the second embodiment, each content player installed in the client performs the playback time synchronization function.

  In the second embodiment in which synchronization is performed by the content player, the information regarding the reference playback time is provided by the content player of the room length client. That is, during joint viewing of moving image content, the content player of the room manager client is a client of other joint viewing etc., and periodically provides information on the current playback time, and the content player such as other joint viewing clients is Synchronize the current content playback time with the room length client playback time.

  According to a preferred embodiment of the present invention, not only the room length client but also a user client or the like belonging to the same co-viewing room provides status information regarding content reproduction to other user clients or the like. That is, the co-viewer periodically receives not only the reproduction time of the room length but also the reproduction time information of other user clients and the like. The status information of each client is transmitted to other clients through the chat server 102.

  The function of the content server 104 is the same as that in the first embodiment. That is, the content server 104 provides the corresponding content at the request of the joint viewing user client or the like. As in the case of the first embodiment, there may be a plurality of content servers 104. Furthermore, the content server 104 does not necessarily have to be a server provided by a service provider. Content may be provided from a client or the like. The joint viewing service can be provided in various ways as in the first embodiment. A system for providing a joint viewing service through a chatting room, a system for operating a joint viewing theater, a joint purchasing system, and the like may be applied to the second embodiment.

  FIG. 11 is a diagram illustrating a module configuration of a chat server according to the second embodiment of the present invention.

  As shown in FIG. 11, the chat server according to the second embodiment of the present invention includes a chatting message relay module 1100, a status information relay module 1102, a control message relay module 1104, and a status management module 1106.

  In FIG. 11, a chatting message relay module 1100 has a function of relaying a chatting message exchanged between joint viewing users and the like. Generally, when one user inputs a chatting message and transmits it to the chat server, the chat server transmits the received chatting message to all other users in the common viewing room. . When a user designates another specific user during joint viewing and requests transmission of a chatting message, the chat server transmits the received message only to the corresponding user. Since the chat server manages the IP address information of the users who have joined the common viewing room, the chat server relays the chatting message using the IP address information.

  The status information relay module 1104 has a function of relaying status information for content reproduction transmitted from the co-viewer to other co-viewers. According to the second embodiment, the player installed in the user client periodically transmits state information related to playback to the chat server, and the chat server transmits the transmitted information to other clients. is there.

  The status information may include current playback time, buffering degree, network status information (content reception speed), and the like. According to a preferred embodiment of the present invention, the status information message is a character string such as a chatting message, and a comma is used as a division symbol. The status information message has identification information different from the chatting message and is transmitted to the chat server. The chat server determines the status information message through the identification character and transmits the status information message to other clients. To do.

  The control message relay module 1104 has a function of relaying a reproduction-related control message transmitted from the room length client of the common viewing room to another client or the like. The playback-related control message includes a playback start message, a playback stop message, a playback position movement message, and the like. As described above, in the second embodiment, since the room length client to be synchronized is used as a reference, it is preferable that the room length client also controls playback start, stop, movement, and the like. However, the entity that can transmit the control message may vary depending on the setting of the operator, and other clients other than the room length client can be set to transmit the control message such as playback stop and movement. Will be obvious to those skilled in the art.

  The state management module 1106 has a function of managing the state of the joint viewing service chatting room. The chatting room status information includes the room title of the chatting room, the number of users who participated, information on the content to be viewed, user IDs, user address information (IP), and the like. When a user joins or leaves the common viewing chatting room, the chat server senses the user's position or exit status, and the sensed information is shared with the joint viewing user database. To provide.

  FIG. 12 is a block diagram showing a module configuration of a content player according to the second embodiment of the present invention.

  As shown in FIG. 12, the content player according to the second embodiment of the present invention includes a content reception module 1200, a content decoding module 1202, a user interface module 1204, a state management module 1206, a state / message transmission module 1208, a playback time. A synchronization module 1210, a status / message receiving module 1212 and a co-viewer user display module 1214 may be included.

  In FIG. 12, a content receiving module 1200 has a function of receiving moving image content during joint viewing. The client of the user during joint viewing can also receive the content from the same server, and when a plurality of servers are used, the content can be received independently from different servers. As described in the first embodiment, the content may be received by the P2P method. At this time, the content player such as each user during joint viewing independently receives the content from different nodes. . In addition, the content receiving module may provide network status information to the status management module 1206 through content reception speed information.

  The content decoding module 1202 has a function of decoding content data received through the content receiving module 1200 1202. The meta information of the moving picture content includes information on the content incoding scheme, and the content decoding module 1202 decodes the received content data by a decoding algorithm corresponding to the incoding scheme. The content decoding module 1202 provides information on the content playback time of the player to the state management module 1206.

  The user interface module 1204 has a function of processing a work command transmitted by the user through the content player interface. The content player has various interfaces such as play, stop, move, volume adjustment, etc., and a user interface module 1204 performs a corresponding process according to a work command transmitted by the user using the interface. It can be so. According to a preferred embodiment of the present invention, interfaces such as content playback stop and content playback position movement are activated only for the content player of the room manager client and activated for content players such as other co-viewers. Preferably not.

  The state management module 1206 has a function of managing state information related to content reproduction. The status information managed by the status management module may include current playback time information, buffering information, network status information, and the like. The playback time information is provided from the content decoding module 1202, and as described above, the playback time information of the user client during joint viewing is preferably provided to all clients participating in the same joint viewing room. However, it is known to those skilled in the art that by setting the playback time of the room length client as the reference time, only the playback time of the room length client may be transmitted to other user clients or the like in the common viewing room. Obviously.

  The state management module 1206 also manages buffering information of moving image content. For buffering information, it is necessary that playback of moving image content is started for the first time, or the room head moves the playback time of the content, and all clients in the co-viewing room need to be played back simultaneously during the moved playback time. Used when there is.

  The status management module 1206 also manages status information of other co-viewer clients received through the status / message receiving module 1212.

  The status / message transmission module 1208 has a function of providing a chatting message or status information message to the chat server. In the case of the content player of the room manager client, the control message (stop, movement of position) regarding the content reproduction is transmitted to another client or the like through the status / message transmission module 1208.

  The status / message transmission module 1208 grasps the type of message to be transmitted (chatting message, status information message, control message), adds a corresponding identification character to the message, and transmits the message to the chat server.

  The chatting message or control message is a status / message transmission module 1208 when a user requests transmission of a chatting message or when a specific event occurs, such as when a room head issues a control command. Transmitted through. However, the status information message is periodically transmitted to the chat server at a preset time interval.

  The playback time synchronization module 1210 has a function of synchronizing the playback time of moving picture content with a reference time. As described above, the reference time is the content playback time of the room length client, and the room length client periodically provides the current playback time information to other clients and the like through the chat server.

  The playback time synchronization module 1210 operates when the content playback time and the reference time do not match, and when the difference between the reference time and the content playback time is not relatively large, the playback time synchronization module Alternatively, the content playback time is synchronized with the reference time by performing slow playback. When the difference between the reference time and the content playback time is relatively large, the playback time is synchronized with the reference time by moving the content playback position so as to match the reference time.

  In the case of a room manager, the playback time is the reference time, so the playback time synchronization module does not operate unless it is a special case. A more detailed operation structure of the playback time synchronization module will be described later with reference to the accompanying drawings.

  The status / message receiving module 1212 has a function of receiving and processing a chatting message, a status information message, and a control message provided through a chat server from a client or the like of another joint viewing user. The status / message receiving module 1212 determines the message type through the identifier of the transmitted message.

  If the message to be transmitted is a chatting message, the status / message receiving module 1212 causes the transmitted message to be displayed in the player's chatting window.

  If the transmitted message is a status information message, the status / message receiving module 1212 provides the received status information to the status management module 1206 and the co-viewer user display module 1214. If the transmitted status information is reference playback time information, the reference playback time information is provided to the status management module 1206, and if the playback time does not match the reference time, the playback time synchronization module 1210 is synchronized. To make it happen. Further, the status information is displayed through the co-viewer display module 1214 so that the status of other co-viewers can be grasped. The user or the like can grasp the reproduction time, buffering, network status information, etc. of other co-viewers through the co-view user display module 1214.

  If the transmitted message is a control message, the transmitted message is provided to the user interface module 1204, which processes the received control instructions.

  FIG. 13 is a block diagram showing a configuration of a reproduction time synchronization module according to the second embodiment of the present invention.

  As shown in FIG. 13, the playback time synchronization module according to the second embodiment of the present invention may include a state determination module 1300, a double speed control module 1302, and a playback time movement module 1304.

  In FIG. 13, the state determination module 1300 compares the reference playback time with the current playback time, and determines whether to perform synchronization by double speed control or to perform synchronization through playback time movement.

  When the difference between the reference time and the current playback time is equal to or less than a preset threshold, the state determination module 1300 enables synchronization by double speed control. However, if the difference between the reference time and the current playback time is equal to or greater than a preset threshold, the state determination module 1302 allows synchronization to be performed through playback time movement.

  According to an embodiment of the present invention, when the difference between the reference time and the reproduction time is 3 seconds or less, the synchronization is performed by the double speed control, and when the difference is 3 seconds or more, the synchronization is performed through the movement of the reproduction time.

  The double speed control module 1302 has a function of performing synchronization by reproducing a moving image at a high speed or by reproducing at a reduced speed when the difference between the reference time and the reproduction time is equal to or less than a preset threshold value. The rate of speeding up or slowing down will be calculated by a preset calculation method according to the difference between the reference time and the playback time. In the double speed control, the double speed control is preferably performed at a playback speed of 0.9 to 1.1% of the original playback speed so that the user can sense that the playback speed has changed. According to the embodiment, it is possible to change the playback speed of a moving image using a double speed related program source provided in a direct show.

  According to another embodiment of the present invention, the playback speed can be converted by changing the frequency of the audio signal. In general, since the video signal is output in synchronization with the audio signal, when the frequency of the audio signal is increased or decreased, the moving image will be output faster or slower correspondingly. In addition to the example in which the double speed control is performed, various double speed control methods can be applied, and it is understood by those skilled in the art that such a change in the method does not affect the idea and category of the present invention. It will be clear.

  The playback time moving module 1304 has a function of moving the moving image playback time so as to match the reference time when the difference between the reference time and the playback time is equal to or greater than a preset threshold. During the movement of the reproduction time, the reproduction time movement module 1304 determines the closest key frame information among the key frames following the current reference time, and determines the reproduction time corresponding to the determined key frame. Make content playback resume. In general, key frame information is included in header information of a moving image file.

  FIG. 14 is a flowchart illustrating an overall flow of the moving picture joint viewing service providing method according to the second embodiment of the present invention.

  Referring to FIG. 14, the client of the room manager who opens the common viewing room first requests the chat server to open the common viewing room (S1400). The room manager can request the chat server to open a shared viewing room through the web page provided by the web server. Similar to a general chatting room, the room manager can also open a public room, and can also open a private room so that only people who have been promised in advance can perform joint viewing.

  In response to the request for opening the common viewing room, the chat server opens the common viewing room and provides the opening information to the joint viewing user database (S1402). Since the web server and the joint viewing user database are linked, the user connected to the web page can confirm the opening information of the room for joint viewing.

  Among the users who confirmed the establishment of the room from the web page, the user who wants to participate in the established room requests the chat server to participate in the co-viewing room through the web page (S404).

  When all the visitors enter the co-viewing room, the room manager transmits a playback start message of the moving image content to the chat server (S1406), and the chat server sends the playback start message to other clients participating in the co-viewing room. Transmit (S1408). By the reproduction start message transmitted by the room manager, the user client or the like who has joined the common viewing room starts to reproduce the content at the same time.

  As described above, clients participating in the co-viewing room periodically transmit status information related to playback to other clients, etc., and the room manager also sends the playback time information to other co-viewer clients. Transmit periodically. The playback time information of the room length client is transmitted to the chat server (S1410), and the chat server transmits the playback time information transmitted from the room length client to the clients of all the viewers who participated (S1412). The viewer client that has received the playback time information of the room length client determines whether or not the content playback time of the room length client matches its own content playback time (S1414).

  If the playback times match, the content is continuously played back (S1418). If the playback times do not match, a preset synchronization algorithm is performed (S1416).

  FIG. 15 is a diagram illustrating a detailed flow from the establishment of a common viewing room according to the second embodiment of the present invention to the start of moving image playback.

  Referring to FIG. 15, the room manager client first requests the chat server to open a common viewing room through a web page (S1500).

  The chat server that receives the room opening request from the room manager client opens the room and provides the room opening information to the joint viewing user database (S1502).

  The room manager client who opened the joint viewing room selects the moving image content to be jointly viewed (S1504). Although FIG. 15 illustrates the case where the moving image content is selected after the room is opened, the moving image content can be selected while the room is opened. The moving picture selection information is transmitted to the chat server (S1504).

  When a moving image is selected, the content player of the room manager client requests the selected moving image from the content server and starts buffering (S1506).

  Since the web server is linked to the joint viewing user database, room opening information and video selection information are displayed on the joint viewing web page, and other users participate in the joint viewing room opened through the web page. A request is made (S1508).

  If there is a request for participation in the established joint viewing room, the content player of the user who has requested participation starts a speed check (S1510). If the receiving speed of one user doing joint viewing is low, it will affect the viewing of moving images of other users, etc., so as a result of the speed check, only users with a certain speed or higher are allowed to enter. preferable.

  According to a preferred embodiment of the present invention, the speed check data is preferably a moving image content to be viewed jointly in an established room. In other words, the speed check is performed by requesting the corresponding moving picture content from the content server and checking the receiving speed information of the moving picture content. When the speed check data is a moving picture content to be viewed together, there is an advantage that the moving picture content to be viewed can be buffered in advance together with the speed check.

  If the receiving speed is equal to or higher than the preset speed, the chat server grants a participation request (S1514). The participation information of other users is recorded in the status information database through the chat server.

  The client of the user who participates in the co-viewing room continuously performs buffering of the content to be co-viewed (S1516).

  Further, the client or the like participating in the common viewing room periodically transmits its state information to the chat server (S1518). As described above, the status information includes buffering information, playback time information, and network status information, and the buffering information is transmitted to another client or the like before the content is played back.

  The chat server transmits the transmitted status information to another client or the like (S1520).

  The room manager client checks the buffering level of other participating clients, etc., and when all participating clients receive moving image content larger than the preset size, a playback start message is transmitted to the chat server. In step S1522, the chat server transmits the transmitted playback start message to another client or the like that has participated (step S1524).

  In response to the playback start message from the room manager client, the clients of all users who have joined the common viewing room start playback of the content at the same time (S1526).

  FIG. 16 is a flowchart showing a synchronization procedure of the reproduction time synchronization module according to the second embodiment of the present invention.

  Referring to FIG. 16, a client or the like participating in the co-viewing room periodically receives playback time information of other clients and the like, and also receives playback time information of a room length client used at the reference time (S1600). ).

  The content player determines whether or not the reference time matches the current playback time (S1602). If the reference time and the current playback time match, the content player continuously plays back the content at a normal speed (S1604).

  If the playback times do not match, determine whether buffering occurred during playback of the content, or whether the difference (Δt) between the reference time and the current playback time exceeds a preset time difference (α) (S1606).

  If buffering occurs or the difference in playback time exceeds a preset time difference, the content player moves the playback time to match the reference time (S1608).

  As described above, the reproduction time is moved in accordance with the reproduction time of the closest key frame among the key frames subsequent to the reference time. However, if the degree of occurrence of buffering is significant, the synchronization for the corresponding client can be interrupted. In this case, the client reproduces the content regardless of the reproduction time of other clients in the common viewing room.

  If the difference (Δt) between the reference time and the current playback time does not exceed a preset time difference (α), synchronization through double speed control is performed (S1610).

  FIG. 17 is a flowchart illustrating a processing procedure when a new viewer requests participation during joint viewing according to the second embodiment of the present invention.

  Referring to FIG. 17, the room manager client and other clients participating in the common viewing room are in a state of reproducing content (S1700).

  When other user clients transmit participation request information to the chat server during the content reproduction (S1702), the chat server checks the speed information and then allows the participation in the common viewing room (S1704).

  The chat server transmits information that other clients have joined the chatting room to the room manager client and other viewer clients (S1706).

  The room length client who received the participation information of the other client extracts the closest key frame information from the key frames following the current playback time and transmits it to the chat server (S1710), and the chat server receives the received key frame. The information is transmitted to the newly joined viewer client (S1712). The key frame information is transmitted only to the newly joined viewer client, not to other clients.

  The viewer client that has received the key frame information starts buffering in accordance with the playback time corresponding to the received key frame (S1714), and after the buffering is completed, plays the content (S1716). After the content is reproduced, an operation for comparing the reproduction time with the reference time is periodically performed, and synchronization can be performed according to the comparison result.

  FIG. 18 is a diagram illustrating a room length succession procedure when the room length leaves according to the second embodiment of the present invention.

  According to the second embodiment, since the playback length of the room length becomes the reference time for content playback synchronization, when the room length leaves the room, one of the co-viewers must succeed the room length. .

  Referring to FIG. 18, when the room manager leaves due to the intention of the person or anxiety about the network status, the room manager leaving information is transmitted by the chat server (S1800).

  The chat server selects one of the users participating in the common viewing room as a new room manager (S1802). According to an embodiment of the present invention, the user who joined the room the fastest can be designated as the room length, and a new room length is selected based on the network status information or the playback time information. You can also.

  When a new room manager is selected, the chat server transmits room manager selection information to all clients participating in the common viewing room (S1804). The content player of the client selected as the room manager stops the content reproduction, and the position movement button is activated.

  When a new room length is selected, a procedure for performing synchronization according to a new reference time is performed (S1806).

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed.

The figure which showed the structure of the moving image joint viewing system by 1st Embodiment of this invention. The flowchart which showed the flow of the moving image joint viewing service provision method by 1st Embodiment of this invention. FIG. 3A is a flowchart illustrating a flow of a moving image joint viewing service providing method according to another embodiment of the present invention, and FIG. 3B is a flowchart illustrating a flow of a moving image joint viewing service providing method according to another embodiment of the present invention. The figure which showed the module structure of the web server by 1st Embodiment of this invention. The figure which showed the module structure of the cheto server by 1st Embodiment of this invention. The figure which showed the module structure of the moving image content player by 1st Embodiment of this invention. FIG. 7a is a flowchart showing a procedure for reproducing time synchronization when reproduction times do not match according to the first embodiment of the present invention, and FIG. 7b is a reproduction time synchronization when buffering occurs according to the first embodiment of the present invention. Flowchart showing the procedure FIG. 8B is a flowchart showing a procedure for synchronizing playback times when playback times become different according to another embodiment of the present invention, and FIG. 8B shows a playback time when buffering occurs according to another embodiment of the present invention. Flow chart showing the synchronization procedure The figure which showed the screen structure of the moving image content player which can enjoy chatting and content appreciation together by preferable embodiment of this invention. The figure which showed the screen structure of the moving image content player by other embodiment of this invention. The figure which showed the module structure of the chat server by 2nd Embodiment of this invention. The block diagram which showed the module structure of the content player by 2nd Embodiment of this invention. The block diagram which showed the structure of the reproduction time synchronization module by 2nd Embodiment of this invention. The flowchart which showed the whole flow of the moving image joint viewing service provision method by 2nd Embodiment of this invention. The figure which showed the detailed flow until the moving image joint viewing room by 2nd Embodiment of this invention is established, and moving image reproduction is started. The flowchart which showed the synchronization procedure of the reproduction time synchronization module by 2nd Embodiment of this invention. The flowchart which showed the process sequence in case a new viewer requests participation during joint viewing by 2nd Embodiment of this invention. The figure which showed the succession procedure of the room manager when the room manager leaves according to the second embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Web server 102 Chat server 104 Content server 106 Beering server 108,110,112,114 User client 400 Web page provision module 402 Joint viewing participation request processing module 404 Content request processing module 406 Charge processing module 410 Joint viewing user data Base 500 Message relay module 502 Joint viewing user management module 504 Joint viewing condition judgment module 506 Moving image start message transmission module 508 Playback time monitoring module 510 Playback time synchronization module 600 Content decoding module 602 Cache control module 604 User interface module 606 Joint viewing user display module 608 Playback preparation message transmission module 610 Playback time transmission module 612 Message transmission / reception processing module 900 Movie playback screen 902 Avatar screen 904 Chatting message screen 906 Dialogue input box 908 Input interface screen 1100 Chatting message relay module 1102 Status information relay module 1104 Control Message relay module 1106 Status management module 1200 Content reception module 1202 Content decoding module 1204 User interface module 1206 Status management module 1208 Status / message transmission module 1210 Playback time synchronization module 1212 Status / message reception module 1214 Co-viewer user display module 300 state determination module 1302 speed control module 1304 Duration mobile module

Claims (26)

Receiving a chatting room establishment request information from a user and opening a chatting room (a);
Receiving participation request information for the established chatting room from at least one other user (b);
Receive moving image content selection information from at least one of the users who participated in the established chatting room, and send the selected content data to clients such as all users who participated in the chatting room. Transmitting (c);
Transmitting a reproduction start signal to a client of a user who participates in the established chatting room (d);
(E) monitoring the playback time information of the user's client etc. and the occurrence of buffering that participated in the established chatting room, and synchronizing the content playback time of all user clients, etc. ,
And a step (f) of controlling transmission / reception of a chatting message transmitted by a user or the like participating in the chatting room during reproduction of the content. The method further includes receiving a moving image reproduction preparation completion signal from all users' clients and the like who participate in the chatting room, and after receiving the moving image reproduction preparation completion signal from all users, the step ( 2. The content joint viewing service providing method according to claim 1, wherein d) is performed. 3. The content joint viewing according to claim 2, wherein the client or the like participating in the chatting room transmits the moving image playback preparation completion signal when buffering content data larger than a preset size. Service provision method. As a method of providing a moving image joint viewing service to a plurality of users connected to the screening website web page at a preset time,
Receiving the screening hall participation request information from the user, etc. (a);
(B) permitting a user who satisfies a predetermined condition among the users who transmitted the exhibition hall participation request information to connect to the website web page;
Determining whether the preset time has been reached (c);
A step (d) of transmitting a reproduction start signal to clients of all users participating in the screening hall;
(E) monitoring the playback time information of all users' clients participating in the theater and the occurrence of buffering, and synchronizing the content playback times of all user clients, etc. A content joint viewing service providing method characterized by: 5. The content joint viewing service providing method according to claim 4, wherein the screening hall provides a joint viewing service for a preset moving image content at a preset time. A method for providing a content joint viewing service, further comprising the step of controlling transmission / reception of a chatting message transmitted between users participating in the theater before or after starting moving image playback. The step (e) of synchronizing the playback times of the clients of all users who participated in the chatting room or the screening hall,
Receiving playback time information at preset time intervals from all users' clients, etc .;
When buffering occurs in at least one of the participating clients, etc., receiving buffering occurrence information; and
Transmitting the information regarding the reference time to the client of the corresponding user when there is a difference greater than or equal to a predetermined threshold compared to the reference time or when buffering occurrence information is received, 5. The content collaborative viewing service providing method according to claim 1, further comprising: receiving information on the moving image skip time calculated from the client of the corresponding user. The step (e) of synchronizing the playback times of clients such as all users who enter the chatting room or the screening hall,
The method of claim 7, further comprising: transmitting a reproduction start signal to the corresponding user client after the skip time has elapsed. 8. The moving image joint viewing according to claim 7, wherein the skip time is calculated by using the information and current reception speed information of the corresponding user client as a difference in time delayed compared to a reference time. Service provision method. The step (e) of synchronizing the playback times of the clients of all users who participated in the chatting room or the screening hall,
Receiving playback time information at preset time intervals from all users' clients, etc .;
Determining whether the received playback time has a difference greater than or equal to a preset threshold;
When there is a difference in the playback time that is greater than or equal to a preset threshold, transmitting a playback stop signal to all user clients, etc., excluding the user's client,
When a time corresponding to the difference between the reference time and the delayed playback time elapses, the method includes a step of transmitting a playback time start signal to all user clients other than the client of the corresponding user. The content joint viewing service providing method according to any one of claims 1 to 4. The step (e) of synchronizing the playback times of clients such as all users who enter the chatting room or the screening hall,
When receiving buffering occurrence information from at least one of the clients such as the user who has entered, a step of transmitting a reproduction stop signal to a user client other than the user client,
5. When receiving a buffering cancellation signal from the corresponding user client, the method includes a step of transmitting a reproduction start signal to a user client or the like excluding the corresponding user client. The content joint viewing service providing method according to Item 1. Receiving a moving image joint viewing theater opening request information from a user and opening a theater (a);
A step (b) of determining whether or not a predetermined number of users or the like participate in the opened screening hall;
When more than a predetermined number of users or the like participate, allowing the moving image joint viewing, and transmitting the requested moving image content data to the participating users' clients and the like (c);
Transmitting a reproduction start signal to a client of a user who participated in the screening hall (d),
(E) comprising monitoring the playback time information of the client of the user who participated in the screening hall and the occurrence of buffering and synchronizing the content playback time of all user clients, etc. To provide content viewing service. Receiving a joint viewing room establishment request information from a user and opening a room (a);
Receiving request information for the established chatting room from at least one other user (b);
The selected content data is provided to the user who has joined the opened room, the buffering state of the joined user is provided to the room manager, and the content playback start message transmitted from the room manager is received. Transmitting to a user or the like who participated in the chatting room (c);
(D) controlling transmission / reception of a chatting message transmitted by a user or the like participating in the chatting room during playback of the content,
The client or the like who participates in the joint viewing room provides a chatting-related interface, and a content player for content reproduction is installed. A content collaborative viewing service providing method characterized in that other clients, etc., periodically transmitted to a client, etc., participate in the room, synchronize the content playback time based on the playback time of the room length client. 14. The content collaborative viewing service providing method according to claim 13, wherein a client or the like who participates in the chatting room periodically transmits information on a state related to content reproduction to another client or the like. 15. The content according to claim 14, wherein the status information related to the content playback is one selected from the group consisting of current playback time information, buffering information, and network status information, or a combination thereof. How to provide joint viewing services. 14. The content according to claim 13, wherein the playback start message is transmitted when a client or the like participating in the chatting room completes buffering of content selected to be larger than a preset size. How to provide joint viewing services. Content players such as clients who participate in the joint viewing room
Determining whether the content playback time matches the content playback time of the room length client;
If the content playback time does not match, determining whether the content playback time is less than or equal to the content playback time of the room length client and a preset threshold;
If the threshold value is less than or equal to the preset threshold value, the step of reproducing the content data at a high speed or a slow speed according to the time difference;
And performing a reproduction time synchronization procedure including the step of moving the reproduction time position of the content data based on the reproduction time position of the room length client when the threshold value is equal to or greater than the preset threshold. 13. The content joint viewing service providing method according to 13. The method of claim 17, wherein the high speed or slow playback of the content is performed by using a direct show or adjusting a frequency of an audio signal. When the playback position is moved, the playback time is moved to a playback time corresponding to the key frame closest to the playback time among the room length clients among the key frames following the playback time of the room length client. The content joint viewing service providing method according to claim 17. When other users request participation during joint viewing of the content, transmitting the participation information of the other users to the users participating in the chatting room, and
Receiving key frame information necessary for playback time synchronization from the room length client and transmitting it to the client of the participating user;
14. The content joint viewing service providing method according to claim 13, wherein the participating user's client starts buffering based on a playback time corresponding to the received key frame. Provide a web page that allows users to request video joint viewing, and a web server that processes information requested by users requesting video joint viewing;
A content server that stores moving image content data and transmits the content data to a client of a user who has requested a joint viewing of moving images;
Receive information such as users who requested joint viewing through the web server or a database combined with the web server, and request joint viewing of a playback start signal so that moving image content playback can be started at the same time To the client of the user, etc., controlling the sending and receiving of chatting messages between the users during joint viewing, etc., and receiving playback time information and information on whether buffering has occurred from the client of the user during joint viewing And a chat server that synchronizes the playback time of a user client or the like during joint viewing, and a content joint viewing service providing system. The chat server
When the playback time of at least one user client among the user clients during joint viewing is delayed or buffering occurs, the video playback of the corresponding user client is calculated for the skip time calculated. The content joint viewing service providing system according to claim 21, wherein the reproduction time of the joint viewing user client or the like is synchronized by skipping. The chat server
If the playback time of at least one user client among the user clients etc. during joint viewing is delayed or buffering occurs, it is delayed to the joint viewing user client etc. excluding the corresponding user client. The content joint viewing service according to claim 21, wherein the playback time of a user client or the like during joint viewing is synchronized by transmitting a playback stop signal for a period of time or until buffering is canceled. Offer system. A web server that provides a web page that allows users to request joint video viewing;
A content server that stores moving image content and provides requested moving image content to a user client who requested joint viewing of moving images;
A chat server that relays chatting messages during joint viewing of moving images, status information related to content playback, control messages related to content playback provided by room manager clients to other user clients during joint viewing,
A joint viewing user database that is coupled with the web server and chat server and manages state information of the joint viewing room;
The client such as the joint viewing user has a chatting-related interface, and a content player for content playback is installed. The room manager client receives the current content playback time information from other clients participating in the room. A content collaborative viewing service providing system in which other clients, etc., periodically transmitted to the room, etc., synchronize the content playback time based on the playback time of the room length client. The content according to claim 24, wherein the status information related to the content playback is one selected from the group consisting of current playback time information, buffering information, and network status information, or a combination thereof. Joint viewing service provision system. A content player such as a user client during the joint viewing,
Determining whether the content playback time matches the content playback time of the room length client;
If the content playback time does not match, determining whether the content playback time is equal to or less than a preset threshold with the content playback time of the room length client;
If the threshold value is less than or equal to the preset threshold, the content data is played back at a high speed or a slow speed according to the time difference;
25. The method according to claim 24, further comprising: moving the content data reproduction time position based on the reproduction time position of the room length client when the threshold value is equal to or greater than the preset threshold value. The content joint viewing service provision system described in 1.