KR20020084858A - Server system, service method and recording medium for video-song accompaniment - Google Patents

Abstract

PURPOSE: A singing room server system, a service method, and a recording medium thereof are provided to enable a user to use a singing room service usefully using a singing room player which reproduces singing room contents and displays or hides the text of a song in accordance with a user's selection. CONSTITUTION: In a singing room server system for supplying a singing room service by a user terminal through the Internet, a singing room contents database(250) stores singing room contents. A singing room server(230) prepares a singing room player, which reproduces singing room contents and supplies the text of a song selectively. The singing room server(230) downloads the singing room player to the use terminal by responding to a browser of the user terminal, which is connected through a communication network. A contents transmission server(240) receives a request of user-wanted singing room contents through the singing room player downloaded to the user terminal, searches a singing room contents database, and transmits the singing room contents.

Description

Karaoke server system, service method and recording medium thereof {Server system, service method and recording medium for video-song accompaniment}

The present invention relates to a karaoke service using a communication network, and more particularly, to a karaoke server system for providing a karaoke service to a user terminal supporting the Internet, a service method thereof, and a recording medium.

Currently, the wireless communication protocol WAP (WAP) is a communication protocol for standardizing how wireless devices such as cellular phones and pagers can be used to access the Internet such as email, web and newsgroups. It is used as a standard. Through this communication protocol, the mobile communication service provider enables the mobile communication terminal to access the Internet through the mobile communication network. In an environment where Internet access is supported, the use of portable mobile communication terminals will rapidly increase, and more useful Internet services will be required.

Among various internet services, the karaoke service currently supports only lyrics about mobile communication terminals. Accordingly, there will be a need for a system and method for providing karaoke content as multimedia content including video, audio, lyrics, and the like to a mobile communication terminal, and performing related useful functions.

The technical problem to be achieved by the present invention, by using a karaoke player that shows or hides the lyrics of the song according to the user's choice while playing the karaoke content, karaoke server system and its service to enable the user to use the karaoke service more usefully To provide a method.

Another object of the present invention is to provide a computer-readable recording medium that records a karaoke program coded with a program code of operations performed by the karaoke player.

Another object of the present invention is to provide a karaoke server system, a service method thereof, and a recording medium based on MPEG-4 system technology.

1 is a diagram for schematically illustrating a karaoke server system to which the present invention connected through a communication network is applied.

2 is a block diagram illustrating a karaoke server system according to the present invention for providing a karaoke service to a mobile phone terminal.

3 is a flowchart illustrating a karaoke service method according to the present invention.

4 is a diagram illustrating karaoke content displayed on the screen of the mobile telephone terminal.

In order to achieve the above object, the karaoke server system according to the present invention for providing a karaoke service to a user terminal supporting the Internet, Karaoke content database for storing karaoke content; A karaoke server providing a karaoke player for selectively providing song lyrics while playing karaoke content, and downloading the karaoke player to the user terminal in response to a browser of the user terminal connected through a communication network; And a content delivery server that receives the karaoke content desired by the user through the karaoke player downloaded to the user terminal and searches and transmits the karaoke content database.

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

1 is a diagram for schematically illustrating a karaoke server system to which the present invention connected through a communication network is applied.

The karaoke server system 120 conceptually includes a karaoke server 122, a content delivery server 124, and a DB server 126 that manages various databases. The karaoke server 122 is generally used as a concept encompassing server software capable of answering a client's request and a computer on which the server software is installed. If the client is a web browser, it may be implemented as a web server, and if the client is a browser embedded in a mobile communication terminal, it may be implemented as a wireless internet server.

The content delivery server 124 is preferably a streaming server, transmitting karaoke content stored in a karaoke content database to a streaming service. In order to overcome the limitations caused by the large capacity of existing media files, streaming services are designed to play media files by downloading only a small piece of data using a special compression technique.

Various databases such as the karaoke server 122 and the karaoke content database referred to by the content delivery server 124 are systematically stored in the recording medium so that related data can be easily added, updated, or retrieved. It is used as a concept to encompass data stored in. 1 illustrates that the DB server 126 manages various DBs, but may not have a separate DB server. In addition, the karaoke server 122 may be separately provided for the wireless Internet 110 and the wired Internet 110 '.

On the other hand, the mobile phone terminal 100 supporting the Internet is connected to the WAP gateway (Wireless Application Protocol Gateway) 104, preferably through the relay station 102 through the mobile communication network, and then karaoke service through the wireless Internet (110) Connect to the karaoke server system 120 that provides. Currently, WAP gateway is representative software that automatically converts HyperText Markup Language (HTML) for desktop PCs to Wireless Markup Language (WML) for mobile communication terminals. Of course, the computer 100 'is connected to the karaoke server system 120 via the wired Internet 110'.

As described above, in the situation of being connected to the server system 120, the mobile phone terminal 100 receives a membership registration procedure, etc. required to receive the karaoke service according to the present invention. Here, the membership registration procedure may be received in advance through a computer 100 'having a web browser. General procedures between the user terminal and the server system 120 are omitted in order to clarify the gist of the present invention.

Now, the karaoke service according to the present invention will be described with reference to the mobile telephone terminal 100 as a user terminal.

Referring to FIG. 2, the karaoke server 230 provides a karaoke player that selectively provides song lyrics while playing karaoke content stored in the karaoke content DB 250. Referring to FIG. 3, a karaoke service method performed by the karaoke server system 120 and in particular, the karaoke player 220 will be described in detail.

First, the mobile phone terminal 100 accesses the karaoke server system 120 through the mobile network through the mobile communication network (S300). If the connection is successful, the karaoke player download unit 232 of the karaoke server 230 checks whether the karaoke player is an initial connection without installing (step 301). In the initial connection, the karaoke player download unit 232 downloads the karaoke player prepared in advance to the mobile phone terminal 100 in response to the browser of the mobile phone terminal 100 (step 302).

Next, in the karaoke player 220 downloaded to the mobile phone terminal, the selection and playback unit 222 basically uses the karaoke player information, the song list information stored in the karaoke content DB 250, and the like. Provided to the user through the step (304). Next, the user selects a desired song through the user interface 220 and requests the karaoke content corresponding to the content delivery server 240 (step 306). When the content delivery server 240 receives the karaoke content desired by the user through the karaoke player 220, the content transmission server 240 searches for the karaoke content DB 250 and transmits the same to the streaming service (step 308).

Next, the selection and playback unit 222 receives and plays karaoke content from the content delivery server 240 (step 310). Since the karaoke content basically includes text corresponding to video, audio, and lyrics to be used as a background screen, the music selection and playback unit 222 plays audio and video and text, respectively, in accordance with its playback motive. Here, as another example of the selection of music, the mobile phone terminal may be configured to store the music list information and the like stored in the karaoke content DB 250 in advance, and provide a service related to the selection of music to the user through a browser. That is, a song is selected through a browser, and the song is played in a karaoke player.

Next, while the song selection and playback unit 222 plays the karaoke content, the lyrics on / off unit 224 shows or hides the lyrics displayed on the background screen according to the user's selection (steps 312 and 314). In addition, the accompaniment audio on / off unit 224 converts the original audio, that is, the audio containing the lyrics, into accompaniment audio according to a user's selection (steps 316 and 318). For their function, the karaoke content according to the present invention preferably includes images to be used as button screens for lyrics on / off and accompaniment audio on / off. 4, the karaoke content according to the present invention is illustrated.

In the present invention, karaoke content and karaoke player are based on MPEG-4 system technology as a preferred embodiment. In the karaoke player 220, the selection and playback unit 220 decodes each component included in the karaoke content into a separate object based on MPEG-4 system technology, and decodes each component into an MPEG-4 BIFS (Binary Format for Scene). Based on this, each object is reconstructed in time and space. In other words, it plays a role of decoding the karaoke content encoded by MPEG-4. The MPEG-4 system technology applied to the present invention will be briefly described as follows.

The MPEG-4 system structure is composed of four structures: a delivery layer, a sync layer, a compression layer, and a composition layer. First, the transport layer receives the bitstream for each object from various networks or file storage. Second, the sync layer performs work for synchronization on the bitstream.

Third, the compression layer performs a task of interpreting each bitstream. Decoders included in the MPEG-4 system include a scene description decoder, an object descriptor decoder, a video decoder, an audio decoder, and the like. The scene description decoder decodes information about the temporal and spatial arrangement for each object, and the object description decoder decodes information about the elementary stream of each of the objects. The video decoder and the audio decoder perform decoding of A / V data such as MPEG-4 visual data, JPEG, and AAC. Finally, the component layer is responsible for arranging the data decoded by the respective decoders in time and space according to the scene description and outputting it through a monitor or a speaker.

As described above, the MPEG-4 system is configured to receive and decode an independent bitstream and to combine and represent each object. The types of bitstreams to be actually transmitted are as follows. Object Descriptor Stream to transmit various object descriptor commands (OD_Command), Clock Reference Stream, Scene Description Stream to deliver BIFS_Command or BIFS_Animation information, encoded A visual stream carrying visual data, an audio stream carrying encoded audio data, an MPEG7 stream, an IPMP stream, an object content information stream, and the like.

In MPEG-4 systems, scene descriptions are made through BIFS. BIFS, like the virtual reality modeling language (VRML), each of the objects that can compose a scene is called a node, and organized in a tree form of the nodes. BIFS commands include broad insert commands, delete commands, replace commands, scene replace commands, and the like. The scene description may be arbitrarily changed through the BIFS command. The song selection and playback unit 222 according to the present invention uses the replacement command among the BIFS commands in order to play the audio and change the song lyrics according to the reproduction synchronization.

BIFS nodes functionally contain subnodes, such as grouping nodes that can be positioned, audio nodes for representing audio, graphic nodes representing nodes that will actually appear on the screen, and texture mapping of graphics nodes. It can be divided into available texture nodes, sensor nodes that accept user input and generate events for them. There is a route (ROUT) that connects the event to the node to be processed.

A feature of BIFS is that user interaction is possible through sensor nodes. That is, when an object on the screen is clicked, a function of changing the position of the object or stopping the video or audio can be performed. Sensor nodes are also functionally divided into DiscSensor, PlaneSensor2D, ProximitySensor2D, TimeSensor and TouchSensor nodes.

In the present invention, the karaoke content actually includes button screens composed of nodes for performing the lyrics on / off function and the accompaniment audio on / off function.

The lyrics on / off unit 224 according to the present invention generates a user input as an event using a sensor node among the BIFS nodes defined by MPEG-4 BIFS. Show or hide lyrics by changing the position where is displayed. Here, the concrete role of the condition node is to execute the BIFS command included in the node when the node is activated. For example, if "Hide lyrics" is selected in Fig. 4, the condition node is activated, and the lyrics are hidden by moving the position of the lyrics included in the condition node out of the background screen. Conversely, when "Show Lyrics" is selected, the lyrics are shown by moving the position of the lyrics into the background screen.

In addition, the accompaniment audio on / off unit 226 according to the present invention uses a sensor node among BIFS nodes defined by MPEG-4 BIFS in a manner similar to the lyrics on / off unit 224 to event user input. And convert the original audio into accompaniment audio by reducing the volume of the audio node so that no sound is produced. In another embodiment, an audio switch node is used to play one of the original audio and the accompaniment audio.

So far, the karaoke server system and its service method have been described. On the other hand, it is possible to consider a computer-readable recording medium recording a karaoke program coded by the program code of the operation steps performed by the karaoke player. The recording medium stores karaoke content and records a karaoke program for reproducing the stored karaoke content. The karaoke program includes a song selection and playback module, a lyrics on / off module, and an accompaniment audio on / off module.

Although the present invention has been described with reference to the drawings, it is exemplary and not limited thereto. In addition, although the present invention has been described with an example of a mobile telephone terminal, it can be used in various mobile communication terminals such as other Internet phones, portable personal digital assistants (PDAs), and pagers that can be supported by the WAP gateway.

As described above, the present invention enables the user to be usefully provided with karaoke service through the Internet not only in the wired Internet but also in the mobile communication environment, and in particular, the user can turn on / off song lyrics while playing karaoke content. Get a more useful karaoke service.

Claims (12)

In the karaoke server system that provides a karaoke service to a user terminal supporting the Internet, A karaoke content database that stores karaoke content; And A karaoke server providing a karaoke player for selectively providing song lyrics while playing the karaoke content, and downloading the karaoke player to the user terminal in response to a browser of the user terminal initially connected through a communication network; And Karaoke server system comprising a content transmission server for receiving the karaoke content desired by the user through the karaoke player downloaded to the user terminal to search and transmit the karaoke content database. The method of claim 1, wherein the karaoke content, Includes at least video, audio, text corresponding to lyrics, and images to be used as button screens for on / off lyrics, The karaoke player, A selection and playback unit for selecting a desired song from a user and receiving and playing karaoke content from the content transmission server; And Karaoke server system characterized in that it comprises a lyrics on / off to show or hide the lyrics on the background screen according to the user's selection of the button screen for the lyrics on / off included in the karaoke content. The system of claim 2, wherein the karaoke content and the karaoke player are based on MPEG-4 system technology, The music selection and playback unit decodes each component included in the karaoke content based on MPEG-4 system technology into separate objects, reconstructs each object based on MPEG-4 BIFS, The lyrics on / off unit accepts user input through a sensor node which is a BIFS node defined by MPEG-4 BIFS constituting the button screen for lyrics on / off, and displays lyrics on a background screen through a condition node. Karaoke server system, characterized in that by changing the location, to show or hide the lyrics. The method of claim 2 or 3, wherein the karaoke content, It further includes an image to be used as a button screen for accompaniment audio selection. The karaoke player, And an accompaniment audio on / off unit for converting original audio into accompaniment audio according to a user's selection of the button screen for accompaniment audio selection included in the karaoke content. The accompaniment audio on / off unit according to claim 4, And one of the original audio and the accompaniment audio is played through an audio switch node which is a BIFS node defined by MPEG-4 BIFS constituting a button screen for selecting the accompaniment audio. In the karaoke service method through a communication network providing a karaoke service to a user terminal supporting the Internet, (a) confirming whether the karaoke player is an initial connection with respect to the user terminal connected through the communication network, and downloading the karaoke player prepared in advance to the user terminal if the initial connection is established; (b) receiving a karaoke content desired by a user through the karaoke player downloaded to the user terminal, searching for a karaoke content database prepared in advance, and transmitting the karaoke content database to the user terminal; And (c) The karaoke player comprises the step of selectively providing song lyrics according to the user's request while playing the transmitted karaoke content. The method of claim 6, wherein the karaoke content, Includes at least video, audio, text corresponding to lyrics, and images to be used as button screens for on / off lyrics, In the step (c), the karaoke player to show or hide the lyrics on the background screen according to the user's selection of the button screen for the lyrics on / off included in the karaoke content during the playback of the transmitted karaoke content Karaoke service method characterized in that. 8. The apparatus of claim 7, wherein the karaoke content and the karaoke player are based on MPEG-4 system technology, In the step (c), the karaoke player decodes each component included in the karaoke content into a separate object based on MPEG-4 system technology, reconstructs each object based on MPEG-4 BIFS, By accepting user input through a sensor node which is a BIFS node defined by the MPEG-4 BIFS constituting the button screen for on / off of the lyrics, and changing the position where lyrics are displayed on a background screen through a condition node, Karaoke service method characterized in that to show or hide the lyrics. The method of claim 7 or 8, wherein the karaoke content, It further includes an image to be used as a button screen for accompaniment audio selection. In the step (c), the karaoke player karaoke service method characterized in that to convert the original audio to accompaniment audio according to the user's selection of the button screen for the selection of the accompaniment audio included in the karaoke content. 10. The accompaniment according to claim 9, wherein in the step (c), the karaoke player is a BIFS node defined by MPEG-4 BIFS that constitutes a button screen for selecting the accompaniment audio. Karaoke service method characterized in that to play one of the audio. Record a karaoke program that stores at least karaoke content, including images to be used as wallpaper, video to be used as wallpaper, audio corresponding to lyrics, and images to be used as button screens for lyrics on / off and accompaniment audio, and to record the karaoke content , The karaoke program includes a selection song and a playback module for selecting a desired song from the user and playing the karaoke content corresponding thereto; Lyrics on / off module to show or hide the lyrics on the background screen according to the user's selection of the button screen for the lyrics on / off included in the karaoke content; And And an accompaniment audio on / off module for converting original audio into accompaniment audio according to a user's selection of the button screen for selecting accompaniment audio included in the karaoke content. media. The method of claim 11, wherein the karaoke content and the karaoke program is based on MPEG-4 system technology, The selection and playback module decodes each component included in the karaoke content based on MPEG-4 system technology into separate objects, reconstructs each object based on MPEG-4 BIFS, The lyrics on / off module accepts user input through a sensor node which is a BIFS node defined by MPEG-4 BIFS constituting the button screen for lyrics on / off, and displays lyrics on a background screen through a condition node. By changing the location of the text, making the lyrics visible or hidden, The accompaniment audio on / off module is configured to play one of the original audio and the accompaniment audio through an audio switch node which is a BIFS node defined by MPEG-4 BIFS constituting a button screen for accompaniment audio selection. The recording medium, characterized in that.