KR20060094300A - System for analyzing digital audio disposition on the mobile terminal and method for controlling thereof - Google Patents

Abstract

The present invention relates to a system for analyzing audio reproduction tendency in a mobile communication terminal and a method of controlling the same. Particularly, the system of the present invention is connected to a mobile communication terminal to transmit digital audio data, and a track ID of digital audio data to the computer. To provide digital audio data having a track ID to the mobile communication terminal, receive the reproduced log information having the track ID from the mobile communication terminal, and analyze the user's audio reproduction tendency according to the reproduced log information to recommend the audio list. And a sound source service server for transmitting the data to the corresponding mobile communication terminal, and a database in which digital audio data is stored and reproduced log information is stored for each user of the mobile communication terminal. Therefore, the present invention can convert digital audio such as MP3 into DCF sound source data and listen to the mobile communication terminal to analyze the user's propensity to listen to the sound source at the service server to generate a recommended audio list according to the propensity for each user and deliver it.

Mobile terminal, track ID, computer, server, propensity analysis

Description

SYSTEM FOR ANALYZING DIGITAL AUDIO DISPOSITION ON THE MOBILE TERMINAL AND METHOD FOR CONTROLLING THEREOF}

1 is a configuration diagram schematically showing a system for downloading digital audio data to a mobile communication terminal using a computer or a mobile communication network according to the prior art;

2 is a block diagram schematically illustrating a system for analyzing an audio reproduction tendency in a mobile communication terminal according to an embodiment of the present invention;

3 is a block diagram schematically illustrating a system for analyzing a tendency of audio reproduction played in a mobile communication terminal and providing a recommended audio list according to the present invention;

4 is a flowchart illustrating an overall control method of an audio reproduction propensity analysis system in a mobile communication terminal according to the present invention;

5 is a schematic configuration diagram of a system for delivering a track ID for analyzing audio reproduction propensity to a mobile communication terminal according to an embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

100, 180: mobile communication terminal 110: computer

120: sound source providing means 130: sound source service server

140, 142, 144, 146: Database

150, 160: Internet network 170: base station

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for providing digital audio such as MP3 to a mobile communication terminal and a control method thereof, and more particularly to a system capable of analyzing the propensity of digital audio reproduced frequently in a mobile communication terminal and a control method thereof.

Commonly used digital audio signal encoding methods include MP3 (MPEG Layer-3), WMA (Window Media Audio), AC3, Advanced Audio Coding (AAC), WAV, Ogg, and the like.

Encoded digital audio data such as MP3 is downloaded to a computer from a storage medium such as a compact disk (CD), an Internet server, or another digital audio device, and transferred to a digital audio reproduction device connected to the computer for storage and reproduction.

Recently, a mobile communication terminal is also widely used as a portable digital audio playback device. The following describes a technology of downloading and playing digital audio such as MP3 through a mobile communication terminal.

1 is a block diagram schematically illustrating a system for downloading digital audio data to a mobile communication terminal using a computer or a mobile communication network according to the related art.

As shown in FIG. 1, the system according to the related art is a sound source service server for providing digital audio such as MP3 and the like in the mobile communication terminal 10, the computer 20, the sound source providing means 30, and the mobile communication network. 40, a database (DB) 50, 52, wired and wireless Internet networks 60, 70, and a base station 80.

In order to play digital audio such as MP3 in the mobile communication terminal 10, a general MP3, WMA, AC3, AAC, WAV, Ogg cannot be played directly, and a sound source converted from various digital audio into DCF (DRM Content Format) format. Only data will be played. In this case, DCF refers to a format technology that allows digital audio such as MP3 to be encoded in a digital rights management (DRM) content format and can be used only where illegal distribution and proper use rights are acquired.

In order to reproduce the DCF sound source data in the mobile communication terminal 10, the mobile communication terminal 10 directly accesses the sound source service server 40 through the wireless Internet network 70, and the digital audio data such as MP3 is stored in the DRM content. DCF sound source data converted to the format is downloaded, decoded, and played.

Alternatively, the computer 20 accesses the sound source service server 40 through the wired Internet network 60 to download DCF sound source data in which digital audio data such as MP3 is converted into DRM content format, and is connected to a USB (Universal Serial Bus) port. The DCF sound source data is transmitted to the mobile communication terminal 10 connected through the connection terminal of and decoded and reproduced.

In the sound source service server 40, the user information transferred from the device through a user log-in process to the mobile communication terminal 10 or the computer 20 is stored in the user database (DB) 50. If the information is matched, a list including meta information (song name, artist, lyrics, capacity, etc.) of DCF sound source data is provided to the approved mobile communication terminal 10 or computer 20, and the user requests The data is found in the sound source information DB 52 to provide corresponding DCF sound source data.

However, when the mobile communication terminal 10 downloads the desired DCF sound source data from the sound source service server 40 through the wireless or wired Internet network 60 or 70, the cost is high, so the computer 20 Digital audio such as MP3 is received from a sound source providing means 30 of a storage medium such as a CD, another free internet server, or another digital audio device such as an MP3 player, and the digital audio data is provided as DCF sound source data supported by the mobile communication terminal 10. After the conversion, the converted data is transferred to the mobile communication terminal 10 and decoded and reproduced.

Meanwhile, in the related art, since the DCF sound source data is provided from the sound source service server 40 to the mobile communication terminal 10 to the wireless or wired Internet networks 60 and 70, the meta information (song name, artist, etc.) of the downloaded sound source data is provided. ), It was possible to grasp the tendency of listening to the sound source of the terminal user.

However, the computer 20 converts digital audio, such as MP3, received from the sound source providing means 30 of a storage medium such as a CD, another free Internet server, or another digital audio device such as an MP3 player, into DCF sound source data. When playing back in the communication terminal 10, the sound source service server 40 has no difficulty in supporting a better service because the sound source listening tendency of the terminal user cannot be grasped at all.

An object of the present invention is to add a track ID to the DCF sound source data in the sound source service server to solve the problems of the prior art as described above by constructing a system for transmitting the sound source data information reproduced after a predetermined time to the service server Even when the digital audio such as MP3 is converted into DCF sound source data and listened to by the mobile communication terminal, the service server analyzes the propensity to listen to the sound source by the service server and generates a recommended audio list according to the propensity of each user. An audio reproduction propensity analysis system is provided.

Another object of the present invention is to add a track ID to the DCF sound source data in the sound source service server, deliver the sound source data information reproduced after a certain period of time to the service server, and deliver the recommended audio list for each user in the service server Accordingly, the present invention provides a control method of an audio reproduction propensity analysis system in a mobile communication terminal capable of analyzing a user's propensity to listen to a sound source even when the digital audio such as MP3 is converted into DCF sound source data and listened to by a mobile communication terminal.

In order to achieve the above object, the present invention provides a system for providing digital audio data to a mobile communication terminal, comprising: a computer connected to the mobile communication terminal and delivering digital audio data; The digital audio data having the ID is transmitted to the mobile communication terminal, the reproduced log information having the track ID is received from the mobile communication terminal, and the audio reproduction tendency is analyzed for each user according to the reproduced log information. A sound source service server delivered to the terminal, and digital audio data is stored and the reproduced log information includes a database stored for each user of the mobile communication terminal.

According to an aspect of the present invention, there is provided a control method of a system for providing digital audio data to a mobile communication terminal, the method comprising: transmitting a track ID according to digital audio data information at a request of a computer at a sound source service server; Combining the track ID and the digital audio data and transmitting the same to the mobile communication terminal; playing the digital audio data having the track ID in the mobile communication terminal and delivering the reproduced log information having the track ID to the sound source service server; And analyzing the user's audio reproduction tendency according to the log information reproduced by the sound source service server and delivering the recommended audio list to the corresponding mobile communication terminal.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

2 is a block diagram schematically illustrating a system for analyzing an audio reproduction tendency in a mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 2, the system according to an embodiment of the present invention includes mobile communication terminals 100 and 180, a computer 110, a sound source providing means 120, and digital audio such as MP3 in a mobile communication network. It includes a sound source service server 130 and a database (DB) (140, 142, 144, 146). Here, the non-described wired Internet network 150 refers to the Internet network for TCP / IP protocol support for wired connection between the computer 110 and the sound source service server 130, the wireless Internet network 160 is a mobile communication terminal Refers to an internet network for changing the WAP protocol signal of the base station 170 to the TCP / IP protocol of the server so as to connect between the base station 170 of the mobile communication network (100, 180) where the sound source service server 130 is located. The base station 170 serves to connect the mobile communication terminal 100 to the wireless Internet network 160.

In the system of the present invention, the mobile communication terminal 100 is a terminal used in a mobile communication network such as IMT-2000, PCS and the like encrypted digital from the computer 110 connected through a connection means such as a USB port (not shown) Audio data (hereinafter referred to as DCF sound source data) is downloaded or DCF sound source data is downloaded from the base station 170 of the mobile communication network. The mobile communication terminal 100 transmits the reproduced log information of the track ID (identification character) in the DCF sound source data transmitted from the computer 110 to the sound source service server 130 through the base station 170, and the sound source service server. Receives a recommendation audio list analyzing the user's audio reproduction tendency according to the reproduced log information from 130. In this case, the recommended audio list may be transferred to another mobile communication terminal 180 through a mobile communication network such as the base station 170.

Although not shown in the drawings, the mobile communication terminals 100 and 180 used in the present invention include a codec for decompressing DCF audio data and decompressing encoding of digital audio data such as MP3, which has been decrypted. An application program to be connected to the computer 110 or connected to the wireless Internet network 160 should be mounted. At this time, the digital audio data encrypted with the DCF includes, for example, MP3, WMA, AC3, AAC, WAV, Ogg, and the like.

The computer 110 receives digital audio data, such as MP3, from a sound source providing means 120 of a storage medium, another Internet server, or another digital audio playback device such as MP3 play. The mobile terminal 100 receives the track ID of the digital audio data provided from the sound source service server 130 from the sound source service server 130 through the wired Internet network 150, and combines the digital audio data with the track ID. Encrypted in the form of DRM content format supported by the converted into DCF sound source data and delivers it to the mobile communication terminal (100).

The sound source service server 130 undergoes a user log-in process to the computer 110 connected through the wired Internet network 150, and user information transmitted from the corresponding device is stored in the user DB 140. If it is matched with the digital audio data information such as MP3 transmitted from the approved computer 110 and compared with the data stored in the sound source information DB 142, and provides a track ID corresponding to the same data. At this time, the information of the digital audio data includes an audio file name, an audio file initial section, audio metadata, and the like.

In addition, the sound source service server 130 generates a time or log in which the replayed log information having the track ID provided from the corresponding server from the mobile communication terminal 100 connected through the wireless Internet network 160 and the base station 170 is generated. Received every hour and stored in the user-specific playback log DB (144), and analyzes the user-specific audio playback in accordance with the replayed log information to generate a recommended audio list and delivers it to the mobile communication terminal 100. In this case, the recommended audio list includes meta information (song name, artist, lyrics, capacity, etc.) of DCF sound source data provided by the sound source service server 130.

The database DB includes a user DB 140 storing user information, a DC sound source information DB 142, a replay log DB 144 for storing user replay log information of a mobile communication terminal, a sound source knowledge DB 146, Although not shown in the drawings, it includes a sound source vector DB and the like.

FIG. 3 is a schematic diagram of a system for providing a recommendation audio list by analyzing an audio reproduction tendency played in a mobile communication terminal according to the present invention.

Referring to FIG. 3, the system of the present invention configured as shown in FIG. 2 is provided with an MP3 or the like provided from a storage medium, another Internet server, or a sound source providing means 120 of another digital audio playback apparatus such as an MP3 play in the computer 110. Before the digital audio data is downloaded to the mobile communication terminal, the track ID corresponding to the digital audio data is received from the sound source service server 130. Then, the digital audio data is combined with the track ID received from the sound source service server 130 and converted into DCF sound data encoded in the DRM content format, and then transmitted to the mobile communication terminal 100. The mobile communication terminal 100 transmits the play log information of the DCF sound source data having the track ID to the sound source service server 130 at a set time or a log occurrence time, and the sound source service server 130 according to the play log information The audio reproduction tendency of each user is analyzed and the recommended audio list is transmitted to the mobile communication terminal 100.

Accordingly, in the mobile communication terminal of the present invention, the storage medium, the other Internet server, or the MP3 provided by the sound source providing means 120 of the other digital audio reproduction apparatus such as the MP3 play is not provided with the DCF sound source data provided by the sound source service server 130. Even if the digital audio is converted to DCF sound source data and played back, the sound source service server 130 can check whether or not the DCF sound source data played in the mobile communication terminal is reproduced using the track ID without user's knowledge. By analyzing the listening propensity, a list of recommended audio for each user's propensity (domestic, pop, jazz, new song, artist) is provided to the corresponding mobile communication terminal.

4 is a flowchart illustrating an overall control method of an audio reproduction tendency analysis system in a mobile communication terminal according to the present invention. 2 to 4, a control method of an audio reproduction propensity analysis system in a mobile communication terminal according to the present invention is as follows.

First, the computer 110 uses a service for converting digital audio data, such as MP3, provided from the sound source providing means 120 of a storage medium, another Internet server, or another digital audio playback apparatus such as MP3 play into DCF sound source data. (S12)

As a result of the S12 determination, when the service is used, the computer 110 accesses the sound source service server 130 through the wired Internet network 150, and digital audio data information such as MP3 (for example, audio file name, about 10 Audio file initial section, audio metadata, etc.) of seconds to 25 seconds are transmitted to the sound source service server 130 (S14).

The sound source service server 130 searches for digital audio data information such as MP3 transmitted from the computer 110, whether there is a match among data stored in the sound source information DB 142, and if there is a match, The corresponding track ID is provided. (S16 to S18)

The computer 110 combines the digital audio data such as MP3 and the track ID received from the sound source service server 130, converts the digital audio data into DCF sound data encrypted in the DRM content format, and transfers the same to the mobile communication terminal 100. (S20)

The mobile communication terminal 100 reproduces the DCF sound source data (S22).

When a predetermined time elapses from the time when the DCF sound source data is received, the mobile communication terminal 100 determines whether the current time is a set time (S24).

As a result of the determination of S24, when the current time of the mobile communication terminal 100 becomes a set time, the mobile communication terminal 100 has a track ID in the sound source service server 130 through the base station 170 and the wireless Internet network 160. The reproduction log information of the DCF sound source data is transmitted (S26). The reproduced log information includes a track ID, a reproduction count, and a reproduction time.

The sound source service server 130 stores the playback log information transmitted from the mobile communication terminal 100 in the playback log DB 144 for each user, and analyzes the user's audio playback propensity according to the played log information and then analyzes the user. It generates a recommended audio list according to the star propensity (domestic, pop song, jazz, new song, artist) and delivers it to the corresponding mobile communication terminal 100. In this case, the recommended audio list includes meta information (song name, artist, lyrics, capacity, etc.) of DCF sound source data provided by the sound source service server 130. (S28 to S30) In this case, analysis of the audio reproduction tendency of each user is performed. The highest playback score stored in the log DB 144 may be selected first, and the playback propensity may be analyzed according to a user's favorite song name, genre, or artist.

On the other hand, the present invention further comprises the step of transferring the recommended audio list received from the sound source service server 130 from the mobile communication terminal 100 to another mobile communication terminal 180 through a mobile communication network, such as the base station 170; It may be.

5 is a schematic configuration diagram of a system for delivering a track ID for analyzing audio reproduction tendency to a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 5, digital audio data information such as MP3 (for example, an audio file name) is transmitted to a sound source service server 130 in a computer 110 that receives digital audio data such as MP3 from a sound source providing means 120. , Audio file initial section, audio metadata, etc.), the sound source service server 130 displays a file name, an initial section, or metadata of the matched digital audio data among the audio data stored in the sound source information DB 142. Compare (search) for presence. If there is matched data, the track ID corresponding to the data is transmitted to the computer 110. For example, the sound source service server 130 converts an audio waveform of an initial section (about 10 seconds to 25 seconds) of an audio file such as MP3 into an arbitrary vector value, and stores sound source vector data stored in the sound source information DB 142. It finds the data matching with and extracts the track ID assigned to each sound source vector value.

If there is no matching data, the sound source service server 130 uses the audio matching means 190 to interlock data having a high importance with respect to the information of the corresponding audio data according to the user's preference stored in the sound source knowledge DB 146. The track ID corresponding to the data is provided to the computer 110.

More specifically, the data retrieval method using the sound source knowledge DB 146 utilizes a neuron network learning method utilizing a knowledge semantic tree of audio metadata among digital audio information such as MP3. Each tree node consists of a knowledge object and is assigned a weight related to the relationship and association between the object and audio metadata. For example, if a user hears a digital audio called 'bad girl' with a score of 30, then the artist for 'bad girl' has a 90% weight on the 'Judedine' relationship, so the user's maindine rating is 30 × 0.9 = 27. It becomes a point. As such, the audio matching unit 190 matches the preference information of the sound source knowledge DB 146 with the digital audio data information, finds audio data having a high importance, and extracts a track ID corresponding to the data.

On the other hand, in the system to which the present invention is applied, the computer 110 receives the digital audio data such as MP3 from the sound source providing means 120 of the storage medium, another Internet server, or another digital audio playback apparatus such as MP3 play. Instead of receiving the track ID from the unit 130 and converting it into DCF audio data, the DCF audio data having the track ID is directly downloaded from the sound source service server 130 as described above, and then transferred to the mobile communication terminal 100. You can also pass it. At this time, the DCF audio data downloaded from the sound source service server 130 has meta information including a song name, artist, lyrics, capacity, and the like.

As described above, the present invention establishes a system that adds a track ID to DCF sound source data in a sound source service server and delivers the reproduced sound source data information to the service server, thereby converting digital audio such as MP3 data into DCF sound source data and performing mobile communication. Even if the terminal listens to the user, the service propensity to listen to the sound may be analyzed by the service server, and the recommended audio list may be generated and transmitted according to the propensity of each user.

That is, in the related art, only the audio data download / streaming is determined from the sound source service server to the mobile communication terminal, and there is a limit in grasping the play log information (play count, time, etc.) of the downloaded audio data. Based on the playback log information on how the digital audio data provided by the server or integratedly purchased on the computer using the track ID is reproduced on the mobile communication terminal using the track ID in the music service server (domestic, pop songs, jazz, new songs, Artists, etc.). In the present invention, the user can provide a better mobile communication service by generating a recommended audio list and transmitting the recommended audio list to the mobile communication terminal based on the reproduction tendency of each user through the sound source service server.

On the other hand, the present invention is not limited to the above-described embodiment, various modifications are possible by those skilled in the art within the spirit and scope of the present invention described in the claims to be described later.

Claims (19)

In the system for providing digital audio data to a mobile communication terminal, A computer connected with the mobile communication terminal to transmit the digital audio data; Providing the track ID of the digital audio data to the computer to transfer the digital audio data having the track ID to the mobile communication terminal, and to receive the reproduced log information having the track ID from the mobile communication terminal. A sound source service server for analyzing a user's audio reproduction tendency according to the information and delivering a recommended audio list to a corresponding mobile communication terminal; A database in which the digital audio data is stored and the reproduced log information is stored for each user of the mobile communication terminal. Audio reproduction propensity analysis system in a mobile communication terminal comprising a. The method of claim 1, And the digital audio data is encrypted digital audio data. The method of claim 2, And said encrypted digital audio data is DCF sound source data. The method of claim 1, And the reproduced log information includes the track ID, the number of times of play, and the time of play. The method according to claim 1 or 2, In the mobile communication terminal, the computer combines and encrypts the track ID to digital audio data provided by an audio storage medium, another Internet server, or a sound source providing means of a digital audio reproducing apparatus, and transmits the track ID to the mobile communication terminal. Audio playback propensity analysis system. The method of claim 1, And the sound source service server receives the information of the digital audio data from the computer and compares the data with the data stored in the database to provide a track ID corresponding to the same data. The method of claim 6, And the information of the digital audio data is an audio file name, an audio file initial section, or audio metadata. The method of claim 1, And the sound source service server receives the reproduced log information having the track ID from the mobile communication terminal every time a set time or a log occurs. The method of claim 1, And the mobile communication terminal transmits the recommended audio list to another mobile communication terminal through the mobile communication network. In the control method of a system for providing digital audio data to a mobile communication terminal, Transmitting a track ID according to the digital audio data information at the request of the computer at the sound source service server; Combining the track ID and the digital audio data and delivering the track ID to the mobile communication terminal; Playing the digital audio data having the track ID in the mobile communication terminal and transferring the reproduced log information having the track ID to a sound source service server; Analyzing, by the sound source service server, an audio reproduction tendency for each user according to the reproduced log information, and delivering a recommended audio list to a corresponding mobile communication terminal; Control method of the audio reproduction propensity analysis system in a mobile communication terminal comprising a. The method of claim 10, Delivering the track ID, And receiving the information of the digital audio data from the computer and comparing the data stored in the database with a track ID corresponding to the same data to the computer. . The method of claim 10, And the digital audio data is encrypted digital audio data. The method of claim 10, The encrypted digital audio data is DCF sound source data control method of the audio reproduction propensity analysis system in the mobile communication terminal. The method of claim 10, The digital audio data combined with the track ID is digital audio data provided by an audio storage medium, another Internet server, or a sound source providing means of a digital audio playback apparatus. . The method of claim 10, And the information of the digital audio data is an audio file name, an audio file initial section, or audio metadata. The method of claim 10, After transmitting the reproduced log information to a sound source service server, storing the reproduced log information in a database for each user in the sound source service server, wherein the audio reproduction tendency in the mobile communication terminal is further included. Control method of the analysis system. The method according to claim 10 or 16, The reproduced log information includes the track ID, the number of times of play, and the time of play of the audio reproduction inclination analysis system of the mobile communication terminal. The method of claim 10, The transmitting of the reproduced log information having the track ID to the sound source service server, the control method of the audio reproduction propensity analysis system in the mobile communication terminal, characterized in that for transmitting every time the log occurs. The method of claim 10, And after the transmitting of the recommended audio list to the corresponding mobile communication terminal, transmitting the recommended audio list to another mobile communication terminal through the mobile communication network. Control Method of Audio Playback Propensity Analysis System in.

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