KR20230079291A - A method for providing metadata, a multimedia content providing server, a method for managing files u - Google Patents

Abstract

The present invention provides a multimedia content providing server and a method for providing metadata included in a complete multimedia file through the server.
It also relates to a webhard server and method for efficiently managing files in conjunction with them.
The method for providing metadata through a multimedia content providing server of the present invention includes multimedia data and metadata.
Transmission and reception for data transmission and reception between a database storing a plurality of multimedia files containing multiple multimedia files and an external application
arranging wealth; audio information of a predetermined length from the external application through the transceiver,
A stage for receiving a time code corresponding to a reproduction section of audio information and a reproduction time of an entire file including the audio information
total; A multimedia file having a playback time whose deviation from the received total playback time is within a predetermined tolerance level is stored as the data.
Extracting from the database; Among the multimedia data included in the extracted multimedia file, the time code
extracting corresponding audio data and calculating a predetermined degree of similarity with the received audio information; above similarity
determining audio data that is closest to the received audio information based on; and the determined audio data.
Transmitting the metadata of the multimedia file including data to the external application through the transceiver
It is characterized in that it comprises a step.
As a result, not only can accurate information be provided to users who use multimedia files, but also metadata
Integrated management is possible for files that were treated differently. In addition, in case of webhard server, it is commonly used
For the file, it is possible to avoid redundant file storage, thereby reducing the storage space, and thus reducing the cost of the system.
It has the effect of reducing cost. Also, in file sharing through the Internet, it is useful to have correct metadata.
By doing so, you can increase the reliability of shared files, and you can find exactly the files you were looking for, so you can
It can reduce the time and material cost consumed socially.

Description

A method for providing metadata, a multimedia content providing server, a method for managing files using the same, and a web hard server {A method for providing metadata, a multimedia content providing server, a method for managing files u}

<8> The present invention relates to a multimedia content providing server and a method for providing metadata included in a complete multimedia file through the server, and also to a webhard server and method for efficiently managing files in conjunction with the server.

The sound source includes audio data representing music and a metadata format corresponding to a header. typical meta

The data format is ID3 used in MP3 files. Metadata stored according to the ID3 format is, for example, music title text

column, artist string, album string, album release year string, genre, song number, remark string, "tag" recognition string, conductor

Now, there are reverberation settings, images, volume, lyrics, etc., and the included contents are different depending on the version, and mutually incompatible

There is also.

<10> Meanwhile, as data sharing through the Internet becomes common, illegal copying of sound sources is widely practiced. these illegal

Copying of a sound source generally causes various modifications to the sound source. For example, album, singer, genre, song number,

In some cases, metadata about the conductor, etc. is deleted or changed to incorrect information, and even the name of the song is changed and widely spread.

Sometimes it is duplicated.

<11> In this way, as the metadata of the sound source is changed, lovers who want to enjoy music reproduced with incorrect information.

I heard evil. In general, P2P program operators download music files with modified metadata.

This error occurs when receiving or downloading a music file with incomplete metadata. In addition, falsely written

Because of metadata, users of P2P programs spend a lot of time and material damage downloading unwanted files.

Pray.

<12> The problem of changing metadata is not simply limited to the field of music. Movies or motion pictures made by the general public

Up to video, the same problems as described above are occurring, and even in managing web hard, which is widely used recently

giving a lot of trouble

<13> Figure 1 is a schematic diagram showing a conventional file management system of a web hard server 100 that manages the same multimedia file in an overlapping manner.

It is a block diagram.

<14> Referring to FIG. 1, it can be seen that a plurality of users access the Webhard server 100 to store individual files.

If a plurality of users want to store the same music, that is, to store a music file called "A" in common

In this case, it can be seen that redundant recording and storage are inevitable as the number of users uploading the same multimedia file.

there is. In particular, if the metadata is changed and has metadata different from the original sound source, the web hard server (100)

It is difficult to grasp even that the same audio data are overlappingly recorded.

<15> Therefore, if the correct metadata is provided for the sound source that each individual has, the individual who uses the sound source

Niwa, it will be possible to save a lot of costs in terms of storing or operating the sound sources, that is, in terms of society.

all.

<16> Therefore, an object of the present invention is to provide correct metadata for various multimedia files accessible through the Internet.

This is to minimize personal and social costs.

<17> The present invention for achieving the above object is a method for providing metadata through a multimedia content providing server,

A database and an external application for storing a plurality of multimedia files including multimedia data and metadata

preparing a transmission/reception unit for data transmission/reception with applications; to the external application through the transceiver.

Contains audio information of a predetermined length, a time code corresponding to a reproduction section of the audio information, and the audio information

Receiving playback times of all included files; If the deviation from the total playback time received is within a predetermined tolerance level,

extracting a multimedia file having a birth time from the database; Included in the extracted multimedia file

Among the included multimedia data, audio data corresponding to the time code is extracted and

Calculating a predetermined degree of similarity; Audio data closest to the received audio information based on the degree of similarity

determining; and transmitting/receiving the metadata of the multimedia file including the determined audio data.

A metadata providing method comprising the step of transmitting to the external application through the bride.

it's about

<81> As described above, the present invention not only provides accurate information to users who use multimedia files, but also

In addition, integrated management becomes possible for files that were treated differently due to different metadata.

In addition, in the case of a webhard server, it is possible to avoid redundant file storage for commonly used files, thereby reducing storage space.

can be reduced, and thus, there is an effect of reducing the cost required for the system.

<83> In addition, in file sharing through the Internet, trust in shared files is enhanced by inducing correct metadata.

You can increase the efficiency and find exactly the files you were looking for, saving time and money that was consumed personally or socially.

can reduce enemy costs.

<1> Figure 1 is a schematic diagram showing a conventional file management system of a web hard server that manages the same multimedia file in an overlapping manner.
block diagram;
<2> Figure 2 is a schematic diagram showing a network connection state for explaining an embodiment according to the present invention;
<3> Figure 3 is a schematic block diagram of a multimedia content providing server according to an embodiment of the present invention;
<4> Figure 4 is a schematic block diagram of a webhard server according to an embodiment of the present invention;
<5> Fig. 5 is a flowchart of a file management method in a webhard server according to an embodiment of the present invention;
<6> Figure 6 is a flowchart of a method for providing metadata in a multimedia content providing server according to an embodiment of the present invention; and
<7> Figure 7 is a block diagram schematically showing a file management system in a webhard server according to an embodiment of the present invention.

<18> The multimedia files stored in the database are sound sources obtained with permission from the copyright holder and neighboring rights holders.

It is desirable to be In addition, the step of extracting audio data corresponding to the time code from among the extracted multimedia data and calculating a predetermined degree of similarity with the received audio information may be used for a search that extends before and after the time code.

Calculating time code; extracting audio data corresponding to the search time code; and the extracted

Shifting audio data in units of segments corresponding to the time code, and the synchronization with the received audio information

It is preferable to include a step of calculating apostles.

In addition, according to another aspect of the present invention, the present invention stores a plurality of personal files uploaded by a plurality of users.

In the web hard server including an individual memory for the multimedia content providing server, connecting to the transmitting and receiving unit of the multimedia content providing server

a data communication unit for A shared memory for storing multimedia files commonly stored for a plurality of users; buy

The entire playback time of the multimedia file uploaded by the user, a predetermined representative melody corresponding to audio information, and the

an audio analysis unit that extracts time codes of table melodies; The total playback time and the representative line from the audio analysis unit

The file corresponding to the uploaded multimedia file based on the rate is at least one of the shared memory and the individual memory

a duplicate file inspection unit that determines whether or not one is stored in one file; and the uploaded multimedia in the duplicate file inspection unit.

It is determined that the file corresponding to the Dear file is not stored in the shared memory and the individual memory.

In this case, the total playing time, the representative melody, and the time code are transmitted through the first communication unit to the multimedia contents.

It is transmitted to the providing server, and in response to this, predetermined metadata is received and the metadata is stored in the uploaded multimedia.

It relates to a web hard server characterized in that it includes a file management unit for storing files to be included in a Dear file.

<20> The file management unit determines that the file corresponding to the multimedia file uploaded by the duplicate file inspection unit is the shared memo.

stored in the shared memory instead of the uploaded multimedia file.

Link the multimedia file to be called; In the duplicate file inspection unit, the uploaded multimedia file

If it is determined that the corresponding file is stored in the individual memory, the remote

Storing the Tmedia file in the shared memory and linking it to be called instead of the uploaded multimedia file

desirable.

<21> In addition, according to another aspect of the present invention, the present invention provides an individual memory for storing individual files for a plurality of users.

A multimedia file management method in a webhard server including Mori, in common for the plurality of users

Access to external servers that provide shared memory for storing stored multimedia files and metadata of valid music sources

Preparing a data communication unit to do; Total playback time and audio information of multimedia files uploaded by users

extracting a predetermined representative melody corresponding to the baud and a time code of the representative melody; The total playing time and the

Based on the representative melody, files corresponding to the uploaded multimedia files are stored in the shared memory and the individual memory.

determining whether or not it is stored; The file corresponding to the uploaded multimedia file is stored in the shared memory

And if it is determined that they are not stored in the individual memory, the total reproduction time, the representative melody and the

transmitting the time code to the external server through the data communication unit; The received from the external server

Receiving the metadata of the legitimate sound source and storing it in the individual memory to be included in the uploaded multimedia file

step; When it is determined that a file corresponding to the uploaded multimedia file is stored in the shared memory

In this case, the multimedia file stored in the shared memory is called instead of the uploaded multimedia file.

linking; and a file corresponding to the uploaded multimedia file is stored in the individual memory.

If determined, the corresponding file on the individual memory is stored in the shared memory, and the uploaded multimedia file is stored.

A multimedia file in a webhard server comprising the step of linking to be called on behalf of work

It's about management.

<22> Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

<23> Figure 2 is a schematic diagram showing a network connection state for explaining an embodiment according to the present invention.

<24> Referring to FIG. 2, servers that provide a plurality of users and various services through the Internet, that is, provide multimedia contents.

It can be seen that it is connected to the server 10, the Webhard server 20, and the P2P server 30.

<25> The multimedia content providing server 10 is a server for providing multimedia content. For example, various music files and/or

Alternatively, it may be a server that provides movie files for a fee, and in particular, legitimate sound source permission from copyright holders and neighboring copyright holders.

It is preferable to be a service providing server that has received . Therefore, the multimedia content providing server 10 provides various sound sources and images.

It provides authenticity for the water, and the metadata contained in it also retains the original information.

<26> The web hard server 20 provides a storage medium capable of storing and accessing files regardless of time and place through the Internet.

provided to the user. Users can upload or download their personal files by accessing the web hard at any time, wherever the Internet is connected. In particular, the webhard server 20 allows groups that jointly perform work to share data and

Useful when working.

[27] The P2P server 30 receives search information that visitors want to search for, and shares files provided by other accessors.

It is a server that finds files corresponding to search information among searchers and provides them to searchers. Once the searcher selects a specific file

, a direct file transfer between the searcher and the file provider is initiated.

<28> In this embodiment, the first to fourth users (1 to 4) among the first to fourth users (1 to 4) are service users of the Webhard server 20, and the second and fourth users (1 to 4) are service users.

3 users 2 and 3 are connected to the P2P server 30, and a fourth user 4 plays sound through a personal multimedia file player.

Assume you are listening to evil.

<29> Hereinafter, continuously referring to FIG. 2, a multimedia content providing server 10 and a webhard server according to an embodiment of the present invention

The configuration of (20) and its control method will be described later in more detail.

<30> Figure 3 is a schematic block diagram of a multimedia content providing server 10 according to an embodiment of the present invention. for a fee or not

The general configuration and operation of this server related to the service of providing multimedia contents is omitted, and this

It will be described focusing on embodiments related to the invention.

<31> Referring to FIG. 3, the multimedia content providing server 10 of this embodiment includes a database 11, a transceiver 12, and a sound source detection unit.

(13), a similarity calculation unit 14 and a sound source determination unit 15 are included.

<32> The database 11 stores a plurality of multimedia files including multimedia data and metadata. Special

Multi-mi as a genuine product for various sound sources and videos that have received legitimate sound source permission from the copyright holder and neighboring copyright holders.

It is desirable to save the file, but it is not limited to this, and files related to videos produced by the general public

Of course, it can be stored in the same status as the genuine product.

<33> Here, the multimedia data includes data related to reproduction of songs, pop songs, classical music, traditional music, movies, and videos.

indicate Therefore, in the case of a movie, multimedia data can be understood as including image data and sound data.

There will be.

<34> Metadata includes music title string, singer string, album string, record release year string, genre, song number, note text

column, "tag" recognition string, conductor, reverberation setting, image, volume, lyrics, etc., ID3 as described above.

It may be according to the format.

<35> Transceiver 12 is a communication means capable of transmitting and receiving data with an external application through a network such as the Internet.

It consists of It will be appreciated that an appropriate means of communication may be selected depending on the network. Here, external application

Communication with applications involves requesting and receiving specific metadata. That is, a specific multiplayer from an external application

Receives the total playback time of the media file, audio information of a predetermined length, and the time code of the audio information, and responds accordingly

associated with retrieving and returning metadata that Therefore, external applications provide this information.

It can be implemented with various equipment and software that receives and receives, for example, a web hard server 20 as described later,

It can be implemented as music, video player, P2P program, etc.

<36> The sound source detection unit 13 extracts a multimedia file having a playback time similar to the total playback time from the database 11.

come out Preferably, considering that the total playback time may change slightly, the received total playback time and the database

If the deviation between the playback times of the multimedia files stored in the iS 11 is within a predetermined tolerance range,

It is selected as a candidate for the Tmedia file.

<37> The similarity calculation unit 14 determines the received audio information and most

In order to find multimedia files having similar audio data, similarity is calculated. In this case, the degree of similarity is similar

In the case of a digital sound source displayed in the PCM method, between specific parts

indicates the degree of similarity expressed numerically.

<38> According to the general composition method, there is a representative melody that is repeated 2-3 times in a song, and this melody has the highest peak.

to sing or to form the main melody. Since representative melodies play a role as a fingerprint that characterizes and distinguishes the music,

It is possible to determine whether the song is the same by detecting a representative melody and determining whether a similar melody exists.

<39> Algorithms related to this include preprocessing, pre-emphsis, window, FFT, Mel Filter bank, logging, DCT, feature extraction, etc.

It is possible to use a conventional DTW (Dynamic Time Warping) technique consisting of a procedure of DTW is an algorithm conventionally used for speech recognition. Measures the similarity between the input voice and the basic data stored in the database

method, but also for comparison between digital sound sources in the form of complex sounds based on the same auditory model, DTW

is available. That is, by extracting feature vectors from data having waveform information and comparing them,

degree can be measured.

It is known to those skilled in the art that it is possible to detect the similarity between waveforms using various techniques other than the already known DTW.

will be able to understand For example, sound widths in the same time interval are compared, and the average value of the deviation is digitized.

This will allow us to calculate the degree of similarity. In addition, the degree of change in the magnitude of the waveform is digitized, that is, the differential value of the waveform is numerically

It will also be possible to calculate the similarity of the difference between these differential values between files.

<41> Therefore, the similarity calculation unit 14 converts the audio data of the section corresponding to the time code of the received audio information to the first extracted remote

After extracting from the Tmedia file, the similarity between them is calculated. Preferably, the received audio information is multimedia

It is the representative melody of the file, and the time code means reproduction section information of the representative melody counted from the time of reproduction. Also, young

In the case of a picture or video, if the audio information cannot be regarded as including the representative melody, a specific time code

It is possible to select the audio information of the representative melody. In this way, multimedia files related to movies and videos

The audio information selected for is also referred to as "representative melody" below.

<42> The sound source determining unit 15 is the closest audio data to the received audio information based on the similarity from the similarity calculating unit 14

is determined, and the metadata of the multimedia file including the determined audio data is sent to the outside through the transceiver 12.

Send to sub-application.

<43> Here, evaluation of the degree of similarity may be applied in various ways according to the method of measuring the degree of similarity. For example, the degree of similarity between vectors

If it is calculated as the sum or average of the distances, the audio data for which the calculated similarity is evaluated as the lowest is the representative received.

It can be evaluated as the same as the melody. In addition, the magnitude and differential value of the waveform as described above are most similar.

could be evaluated as the same.

<44> When the most similar audio data and multimedia files are determined, the metadata stored in the multimedia files is transmitted to the transceiver unit.

It is transmitted to an external application through (12).

<45> The detailed operation of the multimedia content providing server 10 disclosed in FIG. 3 will be described later, and referring to FIG. 4 first.

The configuration of the webhard server 20 that operates in conjunction with this will be described.

<46> Fig. 4 is a schematic block diagram of the webhard server 20 according to an embodiment of the present invention.

<47> Referring to FIG. 4, the web hard server 20 of this embodiment includes a shared memory 21, an individual memory 22, a data communication unit 23, and an audio component.

It includes a stone unit 24, a duplicate file inspection unit 25 and a file management unit 26.

<48> The shared memory 21 is displayed as having files uploaded in common by a plurality of users, that is, individually owning the files.

In reality, it is a storage medium used to store files that are stored in the form of sharing one file.

Unlike the shared memory 21, the individual memory 22 is a storage medium for storing individually owned files, and is a shared memo.

The memory 21 and the individual memory 22 may be implemented as separate hard disks, but are actually implemented as one hard disk.

It can be distinguished and managed in units of segments. Multimedia files stored in the shared memory 21 and the individual memory 22 will be described later.

These are files that have been modified to include correct metadata through the same procedure as

It is distinguished by storage medium.

<50> The data communication unit 23 is a means capable of transmitting and receiving data by accessing a network such as the Internet. In particular, multiple

It is provided to access the user's PC and the multimedia content providing server 10 of FIG.

<51> The audio analysis unit 24 reproduces all multimedia files uploaded by the user and received through the data communication unit 23

Time, representative melody, and corresponding time code are extracted. Since the extraction technique of the representative melody is already known,

Therefore, a detailed description is omitted here. Details on this can be found from various sources.

For example, it can be confirmed through the Journal of Information Processing Society ABCD, 11-D, 3, pp495-508, etc.

<52> The duplicate file inspection unit 25 is a file in which the uploaded multimedia file is stored in the shared memory 21 or the individual memory 22

This is to check whether it overlaps with . The inspection method is a sound source detection unit 13, a similarity calculation unit 14 and a sound source in FIG.

The method of determining whether or not the same is determined through the determining unit 15 is adopted as it is. Therefore, primarily the audio analysis unit

Based on the total playback time extracted from (24), the multimedia file with the most similar playback time is extracted from the shared memory 21 and the individual memory 22, and secondarily, audio data corresponding to the time code is extracted, and then Representative analyzed

By calculating the similarity with the melody, the uploaded file is already stored in the shared memory 21 or individual memory 22

It is possible to know whether it is aware or not.

The file management unit 26 determines the storage state of the uploaded file according to the inspection result of the duplicate file inspection unit 25. if upload par

If the work is a new file that has not been saved, it is stored in the individual memory 22 corresponding to the user. On the other hand, sharing

If the file is already stored in the memory 21 or the individual memory 22, the corresponding file

Only the link is set so that the job is called from the shared memory 21. That is, the uploaded file is stored in the individual memory 22 of another user.

If it is a stored file, save this file to the shared memory 21, but add correct metadata so that it is saved, while

If it is a file stored in the shared memory 21, only a link is set.

<54> Fig. 5 is a flow chart of a file management method in the web hard server 20 according to an embodiment of the present invention, and Fig. 6 is an actual

It is a flowchart of a method for providing metadata in the multimedia content providing server 10 according to an embodiment.

<55> Referring to FIGS. 5 and 6, connection between the multimedia content providing server 10 and the Webhard server 20 shown in FIGS. 3 and 4

This operation will be described in detail.

<56> First, referring to FIG. 5, a web hard server equipped with a shared memory 21 and a data communication unit 23 as disclosed in FIG. 4

(20) is prepared (T1) When the user of the web hard server 20 wants to upload a multimedia file, through the Internet

will send the file.

<57> When the upload file is received through the data communication unit 23, the audio analysis unit 24 determines the total playback time and representative

A melody and a time code are extracted (T2) Here, data of a representative melody is extracted by limiting it to a predetermined length, for example, 5 seconds.

it is desirable

<58> It will not necessarily be necessary for the upload file to be processed through the audio analysis unit 24 as soon as it is received from the user. upload

The file to be used is first stored in the individual memory 22 corresponding to the user through the file management unit 26, and then loaded to the server 20.

It is preferable to perform steps T2 to T6 when it takes less.

<59> The duplicate file inspection unit 25 stores the uploaded file in the shared memory 21 or the individual memory 22 based on the extracted information.

(T3) As described above, candidates are primarily based on playback time.

Extracts a multimedia file that becomes , and secondarily extracts the same file from among the extracted multimedia files based on similarity.

Decide. The degree of similarity can be determined based on the amplitude and differential value of the waveform, and it is possible to apply the DTW technique.

<60> If it is determined that the uploaded file is already stored in the shared memory 21 or the individual memory 22, the file management unit 26

discards the uploaded file, and when this file is called by the user, the corresponding file in the shared memory 21 is

Store link information to be called (T4), that is, if it is found to be the same as the file previously stored in the individual memory 22, this file

is stored in the shared memory 21 to be shared by a plurality of users.

On the other hand, if the upload file is not the individual memory 22 and the file stored in the individual memory 22, the uploaded multimedia file

The file management unit 26 extracts the extracted information, that is, the total playback time, representative melody, and time code so that the work has accurate metadata.

is transmitted to the multimedia content providing server 10 of FIG. 3 through the data communication unit 23 (T5).

<62> Referring to FIG. 6, the multimedia content providing server 10 transmits and receives the database 11 for authentic multimedia files.

The bride 12 is provided in advance (S1). Therefore, the multimedia files stored in the database 11 correspond to genuine products.

contains multimedia data and metadata, and a plurality of multimedia files are stored in the database 11.

there is

<63> The entire playing time, representative melody and time code are received from the webhard server 20 through the transceiver 12 (S2)

<64> The sound source detection unit 13 stores multimedia files having similar playback times based on the total playback times received in the database 1

1) is extracted from As described above, the playback time in which the deviation from the total playback time received falls within the allowable range

Multimedia files having are primarily selected as candidate files (S3)

<65> The similarity calculation unit 14 determines the value corresponding to the time code from the multimedia files primarily selected through the sound source detection unit 13.

Extract the audio data of the liver. At this time, it is desirable to compensate for the change in time code according to the difference in playback time.

<66> That is, when the received time code is received in the interval of 15 to 20 seconds counted from the playback time, the similarity calculation unit 14

Correspondingly, a search time code of an appropriately extended 10 to 25 second section is calculated (S4).

Then, audio data corresponding to the search time code is extracted from the primarily extracted multimedia files (S5).

<68> In order to calculate the similarity between the extracted audio data and the received representative melody, a length of 5 seconds corresponding to the length of the representative melody

This segment is selected from within the audio data, and the similarity between the segment of the selected audio data and the representative melody is calculated.

Calculate (S6) Since an infinite number of segments can be selected in the audio data, at predetermined intervals, for example, 01 seconds

Alternatively, it is preferable to select a plurality of segments while moving segments at intervals of 02 seconds.

<69> The similarity is calculated for each of a plurality of segments, and the similarity calculation result, which is evaluated as the most similar, is

The degree of similarity to the false data is determined (S6)

<70> When a similarity is calculated for all audio data extracted from at least one multimedia data extracted first,

The origin determination unit 15 determines which audio data is closest to the representative melody based on the degree of similarity (S7).

<71> Then, the sound source determination unit 15 transfers metadata of multimedia including the determined audio data to the web through the transmission/reception unit 12.

Transfer to the hard server 20 (S8)

<72> Referring again to FIG.

Other data is received through the data communication unit 23 (T6). The received metadata is stored in the metadata part of the upload file.

and stored in the individual memory 22 together with the upload file (T7)

<73> Fig. 7 is a block diagram schematically showing a file management system in the webhard server 20 according to an embodiment of the present invention.

<74> As shown in FIG. 7, files individually stored by a plurality of users, for example, music files X to Z are individual memories.

(22), but the music file A shared between users is stored in the shared memory 21 and

Avoid storing duplicate files.

<75> Therefore, the web hard server 20 stores the metadata stored in the genuine sound source in addition to the multimedia file,

Not only can it provide accurate information to users who use the file, but it can also be treated differently due to different metadata.

Integrated management is possible for the files that were assigned. In addition, for files that are commonly used, redundant files

Since storage can be avoided, storage space can be reduced, and thus the cost required for the system can be reduced.

all.

<76> Figures 3 to 6 have described only the interworking relationship between the multimedia content providing server 10 and the webhard server 20, but

As an external application that works with the Dear content providing server 10, Winamp, Windows Media running on a personal PC

Multimedia file players such as players and peer-to-peer programs may also be used.

<77> When the fourth user of FIG. 2 activates the multimedia file player and selects multimedia files to play,

The Tmedia file player extracts the total playing time, representative melody, and time code for the selected multimedia file, and then adds

The extracted information is transmitted to the multimedia content providing server 10. And, receive metadata provided in response

and stored in a multimedia file.

Similarly, the second and third users of FIG. 2 execute the P2P program and put the files they want to share in the shared folder.

When stored, the P2P program extracts the total playing time, representative melody, and time code for files designated as shared files.

Then, the extracted information is transmitted to the multimedia content providing server 10. And, the metadata provided in response

It is received and stored in a multimedia file.

<79> In this way, the correct metadata for multimedia files is set so that player users can enjoy multimedia files with accurate information.

Media files become available. Also, users of P2P programs will be more reliable about sharing files.

And it will be possible to avoid downloading unnecessary files based on wrong information.

Although embodiments according to the present invention have been described in detail so far, the present invention is not limited thereto. of the present invention

The spirit is determined by the invention described in the claims, and it should be understood to include equivalents thereof. Also, seen

Various modifications within the technical spirit of the invention are possible, but those skilled in the art can easily understand that they fall within the scope of the present invention.

will be able to do

Claims (6)

In the method of providing metadata through a multimedia content providing server,
A database and an external application for storing a plurality of multimedia files including multimedia data and metadata
preparing a transmission/reception unit for data transmission/reception with applications;
Audio information of a predetermined length from the external application through the transceiver and a reproduction period of the audio information
Receiving a time code corresponding to and a playback time of the entire file including the audio information;
A multimedia file having a playback time whose deviation from the received total playback time is within a predetermined tolerance level is converted into the data.
extracting from the base;
Audio data corresponding to the time code is extracted from the multimedia data included in the extracted multimedia file.
calculating a predetermined degree of similarity with the received audio information;
determining audio data closest to the received audio information based on the degree of similarity; and
Metadata of the multimedia file including the determined audio data is sent to the external device through the transceiver.
A method of providing metadata comprising the step of transmitting to an application. According to claim 1,
The multimedia files stored in the database are sound sources that have obtained permission from the copyright holder and neighboring rights holders.
Metadata providing method characterized by. In the multimedia content providing server,
A database for storing a plurality of multimedia files including multimedia data and metadata;
It is possible to transmit and receive data with an external application, and audio information of a predetermined length from the external application and
a transceiver for receiving a time code corresponding to a reproduction section of the audio information and a total reproduction time;
The multimedia file having a playback time whose deviation from the received total playback time corresponds to a predetermined tolerance level
a sound source detector extracting from the database;
Audio data corresponding to the time code is extracted from the extracted multimedia files through the sound source detector
a similarity calculating unit calculating a predetermined similarity with the received audio information; and
Based on the similarity from the similarity calculation unit, audio data closest to the received audio information is determined.
and the metadata of the multimedia file including the determined audio data is imaged through the transceiver.
A multimedia content providing server comprising a sound source determining unit for transmitting to an external application. It is located in the web hard server including individual memory for storing a plurality of personal files uploaded by a plurality of users.
hurry,
a data communication unit for accessing the transmission/reception unit of the multimedia content providing server of claim 3;
A shared memory for storing multimedia files commonly stored for a plurality of users;
The entire playing time of the multimedia file uploaded by the user, a predetermined representative melody corresponding to audio information, and
an audio analysis unit that extracts time codes of representative melodies;
to the uploaded multimedia file based on the total playback time and the representative melody from the audio analysis unit.
a duplicate file inspection unit determining whether a corresponding file is stored in at least one of the shared memory and the individual memory; and
The file corresponding to the uploaded multimedia file in the duplicate file inspection unit is stored in the shared memory and the individual memo.
If it is determined that the total playback time, the representative melody and the time code are not stored in the
Transmitting to the multimedia content providing server through the first communication unit, and receiving predetermined metadata in response thereto
A file management unit for storing the metadata in the individual memory so as to be included in the uploaded multimedia file.
A web hard server comprising: According to claim 4,
The file management unit,
The file corresponding to the multimedia file uploaded by the duplicate file inspection unit is stored in the shared memory.
If it is determined that the multimedia file is stored in the shared memory instead of the uploaded multimedia file
Link the file to be called;
The file corresponding to the multimedia file uploaded by the duplicate file inspection unit is stored in the individual memory.
If it is determined that the multimedia file stored in the individual memory is stored in the shared memory,
A web hard server characterized by linking so that it is called instead of the uploaded multimedia file. Multimedia file in the web hard server including individual memory for storing individual files for multiple users
In the work management method,
A shared memory for storing multimedia files commonly stored for the plurality of users and a legitimate music source memory
preparing a data communication unit for accessing an external server providing other data;
The entire playing time of the multimedia file uploaded by the user, a predetermined representative melody corresponding to audio information, and
extracting the time code of the representative melody;
The file corresponding to the uploaded multimedia file is shared based on the total playback time and the representative melody.
determining whether data is stored in a memory and the individual memory;
The file corresponding to the uploaded multimedia file is not stored in the shared memory and the individual memory.
If it is determined that the total reproduction time, the representative melody, and the time code are displayed through the data communication unit,
Transmitting to an external server;
Receive the metadata of the party music source received from the external server and include it in the uploaded multimedia file
storing in the individual memory so as to be combined;
If it is determined that the file corresponding to the uploaded multimedia file is stored in the shared memory,
Link so that the multimedia file stored in the shared memory is called instead of the previously uploaded multimedia file
doing; and
If it is determined that the file corresponding to the uploaded multimedia file is stored in the individual memory,
A corresponding file on the individual memory is stored in the shared memory and called instead of the uploaded multimedia file.
A method for managing multimedia files in a webhard server, comprising the step of linking as much as possible.

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