KR100887602B1 - Terminal for searching the words through the internet and words provision system through the internet - Google Patents

Abstract

The present invention relates to a user terminal capable of searching for lyrics through the Internet and a lyrics providing system through the Internet. More specifically, an identifier for sound source data reproduced in a user terminal is generated, and the lyrics providing system is generated using the generated identifier. The present invention relates to a user terminal capable of searching the lyrics through the Internet provided to the user by searching the correct lyrics data and providing the lyrics through the Internet.

According to the present invention, the user can search and view accurate lyrics using a lyrics search system without knowing the title or singer of the music being played.

Internet, MP3, Checksum, Lyrics Search, Hash Algorithm, MD5

Description

TERMINAL FOR SEARCHING THE WORDS THROUGH THE INTERNET AND WORDS PROVISION SYSTEM THROUGH THE INTERNET}

The present invention relates to a user terminal capable of searching for lyrics through the Internet and a lyrics providing system through the Internet. More specifically, an identifier for sound source data reproduced in a user terminal is generated, and the lyrics providing system is generated using the generated identifier. The present invention relates to a user terminal capable of searching the lyrics through the Internet provided to the user by searching the correct lyrics data and providing the lyrics through the Internet.

In a program for playing music stored in a PC, a mobile phone, a PMP, or the like, or for reproducing sound source data streamed in real time from an Internet website, the lyrics of the song may be displayed together.

Currently, the lyrics stored with the sound source data are synchronized with the melody and displayed on the user terminal.If there is no lyrics data corresponding to the song in the memory of the user terminal or incorrect lyrics data is stored, the correct lyrics There is an inconvenience that the user can not know.

In order to solve such inconvenience, a technique for searching accurate lyrics data has been disclosed, and one of them is Patent Registration No. 0541215, "Lyrics provision system for digital audio files."

1 is a conceptual diagram illustrating a structure of a terminal used for a lyrics search service according to the related art, which selects a digital audio file for receiving lyrics from among MP3 digital audio files stored in the terminal 10 or stored in the MP3 player 40. Referring to FIG. The tag extracted by the audio file selection module 11, the tag information detection module 12 for extracting tag information in the digital audio file selected by the audio file selection module 11, and the tag information detection module 12. Data transmission module 13 for transmitting information to the server 20 via the Internet and receiving lyrics data from the server 20, and lyrics for linking the lyrics data received from the server 20 with the corresponding digital audio file. A data link module 14 is included.

In addition, the server 20 according to the present invention detects the lyrics data specified in the MP3 audio file by using the tag information transmitted from the terminal 10, and transmits the lyrics data to the requesting terminal.

In the conventional lyrics providing system, tag information should be stored in an MP3 audio file. In the tag information, information on the title, singer, arrangement status, etc. of the corresponding song should be recorded, and the server 20 searches for the lyrics data corresponding to the transmitted tag information and transmits it to the terminal 10.

However, in such a system, since accurate information must be recorded in the MP3 file, lyrics search is possible only for predetermined music.

The present invention for solving the above-mentioned problem is to generate a checksum to identify the file by extracting a part of the sound source data constituting the music file, to search the lyrics database inside the lyrics providing system via the Internet and to store the same checksum An object of the present invention is to provide a user terminal capable of searching the lyrics through the Internet for finding the lyrics data and a lyrics providing system through the Internet.

In addition, an object of the present invention is to provide a user terminal capable of searching the lyrics through the Internet and a lyrics providing system through the Internet so that even if a song of the same title can be found exactly the lyrics that can vary depending on the singer or arrangement method. .

The present invention for solving the above problems is a user terminal for searching and outputting the lyrics data corresponding to the song to be reproduced, calling the sound source data stored in the sound source database or an external storage device to convert to a voice signal, or connected via the Internet A sound source playback unit for converting sound source data streamed from another user terminal into a voice signal; A speaker for outputting the voice signal; A checksum extraction engine for generating a checksum for music identification by extracting a predetermined portion from the sound source data reproduced by the sound source playback unit; And a communication module for transmitting the checksum generated from the specific sound source data to the lyrics providing system through the Internet, wherein the lyrics providing system searches for the lyrics data corresponding to the checksum transmitted from the user terminal and transmits the lyrics to the user terminal. The user terminal converts the lyrics data transmitted from the lyrics providing system into a video signal, and outputs the video signal through a monitor.

The checksum generated by the checksum extraction engine is a hash code, and the checksum extraction engine extracts the front part of the data except metadata from the sound source data by a predetermined length, and extracts the front part of the extracted data from the MD5 hash algorithm (MD5 Hash Algorithm). ) To generate a specific hash code.

The lyrics providing system includes a lyrics database for storing lyrics data, wherein the lyrics database stores a plurality of lyrics data with a checksum corresponding to each lyrics data.

According to another aspect of the present invention, there is provided a lyrics providing system for retrieving lyrics data corresponding to a song played by a user terminal including a checksum extraction engine for generating a checksum for sound source data and transmitting the same to the user terminal. A lyrics database for storing the lyrics with a checksum corresponding to the respective lyrics data; A communication module for receiving the checksum when a checksum for sound source data reproduced in the user terminal is input through the Internet; And a search engine for searching whether the same checksum as the checksum inputted to the communication module exists in the lyrics database, and calling up the lyrics data corresponding to the found checksum when the same checksum is found. The lyrics data called by the engine is characterized in that for transmitting to the user terminal via the Internet.

The checksum generated by the checksum extraction engine is a hash code, and the checksum extraction engine extracts the front part of the data excluding metadata from the sound source data by a predetermined length, and the front part of the extracted data is an MD5 hash algorithm. ) To generate a specific hash code.

The sound source data converted into a voice signal in the user terminal may be sound source data stored in a sound source database or an external storage device of the user terminal or one of sound source data streamed from another user terminal connected through the Internet.

And a lyrics input unit configured to receive new lyrics data input from the user terminal and to store the lyrics data in the lyrics database. When inputting the new lyrics data, a checksum corresponding to the lyrics data is stored together.

According to the present invention, the user can search and view accurate lyrics using a lyrics search system without knowing the title or singer of the music being played.

In addition, if the user does not have the desired lyrics data, there is an effect that can register the lyrics data created by himself in the lyrics providing system.

Hereinafter, a user terminal (hereinafter referred to as "user terminal") capable of searching for lyrics through the Internet and a lyrics providing system (hereinafter referred to as "household provision system") through the Internet according to an embodiment of the present invention will be described. .

2 is a structural diagram showing a connection state of the lyrics search system according to an embodiment of the present invention.

The lyrics search system of the present invention includes a user terminal 100 and a lyrics providing system 200 connected to each other via the Internet 300. The lyrics providing system 200 includes a plurality of user terminals 100 connected and used. . Each of the user terminals 100 can share a music file with each other through a P2P method, and the sound source data stored in one user terminal 100 can be reproduced on his terminal by a real time streaming method. Could be

The user terminal 100 used in the present invention may be any device having a function of storing and reproducing sound source data and internet communication, and includes not only a general PC but also a mobile phone, a PMP, a DMB terminal, and the like.

The user terminal 100 may play the sound source data stored in itself, or play the sound source data streamed from another user terminal 100, and at this time, provide the correct lyrics of the music to be played from the lyrics providing system 200. I can receive it.

The user terminal 100 includes a sound source playback unit 102 for converting sound source data into a voice signal. The sound source player 102 is generally made of a combination of hardware such as a sound card installed in a PC and music playing software such as a Windows media player.

The sound source data reproduced by the sound source playback unit 102 includes various types of audio files such as MP3, OGG, and WAV.

The sound source reproducing unit 102 calls sound source data stored in the sound source database 104 or the external storage device 106 and converts the sound source data into a voice signal. The sound source database 104 refers to an audio file stored in a hard disk (HDD), and the external storage device 106 refers to a CD-ROM, a DVD, a flash memory, or the like.

The source data stored in the sound source database 104 or the external storage device 106 is generally stored with the lyrics data, otherwise the lyrics search system of the present invention can be used.

In the real-time streaming service through sharing with other user terminal 100, since the data of a certain size is actually stored in the temporary memory of the user terminal 100 for a while, the lyrics search is performed in the same manner as using an internal storage device. It is possible.

As such, any type of storage device can be used as long as it can extract a portion of the sound source data.

The audio signal converted by the sound source playback unit 102 is transmitted to the speaker 110 of the output unit 108 and output.

The monitor 112 included in the output unit 108 displays lyrics data stored in the user terminal 100 and lyrics data transmitted from the lyrics providing system 200 as an image. Lyrics output from the monitor 112 should be in sync with music.

The checksum extraction engine 114 extracts a predetermined portion of the sound source data reproduced by the sound source playback unit 102 to generate a checksum for identifying lyrics data.

Various values may be used as checksums for lyrics data identification, but the checksum extraction engine 114 of the present invention uses a method of generating a hash code by inputting a portion of the extracted sound source data into a MD5 hash algorithm. do.

The data extracted from the sound source data is the front part of the sound source data excluding metadata (data containing the size, length, title, singer, and other song information of the sound source). Will be extracted.

The hash algorithm is an algorithm that compresses a bit string of arbitrary length into a hash code that is a fixed length output value.

As an essential requirement for the hash algorithm to be used for message authentication, first, it is impossible to calculate the input value for a given output, and second, it is impossible to find another input that produces the same output for a given input. Third, in the digital signature, a non-repudiation service to prevent forgery by a third party other than the sender should be provided. The representative hash algorithm used for this purpose is MD5.

MD5 is a message compression algorithm developed by Ronald Livest, a professor at MIT University in the United States. MD5 is slower than the previous version of MD4, but it is much safer. MD5 receives a fixed length of 128 bits and processes a random input message in units of 512 bits.

That is, when extracting the front part from specific sound source data and generating a hash code compressed by MD5 hash algorithm, it is unlikely to match the hash code generated from other sound source data, so it is a key generated from the specific sound source data. To be.

Therefore, a part of the plurality of sound source data is extracted to generate respective hash codes, and the generated hash codes are used as identifiers to store respective lyrics data. When a specific music is played, the first part is extracted to generate a hash code, and then a search is made for the same value as a previously stored hash code. In this case, if a matching hash code is found, this value can be regarded as being generated from the same sound source data. Therefore, if the hash data stored together is found using the found hash code as an identifier, the correct lyrics data is found.

As such, the checksum extraction engine 114 generates a checksum (hash code) from a part of the sound source reproduced by the sound source playback unit 102 and transmits the checksum (hash code) to the lyrics providing system 200 through the communication module 116.

The length of the sound source data extracted for the generation of the checksum can be determined as needed, but in general, the first 163840 bytes will be appropriate.

Meanwhile, the communication module 202 included in the lyrics providing system 200 receives the checksum transmitted from the user terminal 100 and transmits the checksum to the search engine 206.

The search engine 206 searches for stored lyrics data among the plurality of lyrics data stored in the lyrics database 204 using the same checksum as the checksum transmitted from the user terminal 100 as an identifier.

The lyrics input unit 208 stores the new lyrics data transmitted from the user terminal 100 together with the checksum in the lyrics database 204. Therefore, users can send their own lyrics directly to the lyrics providing system 200, it is possible to directly modify the error part of the already stored lyrics data.

On the other hand, Figure 3 is a flow chart showing the flow of the lyrics search method of the present invention. The lyrics search method will be described with reference to FIGS. 2 and 3.

First, the user must install the checksum extraction engine 114 in his user terminal 100. (S102) The checksum extraction engine 114 is a download method through a communication network or an installation method using a storage medium. Is installed on.

In the state where the checksum extraction engine 114 is installed, the sound source reproducing unit 102 reproduces the sound source data stored in the user terminal 100 or transmitted from the outside (S104).

The checksum extraction engine 114 extracts a part from the reproduced sound source data and generates a checksum by the MD5 hash algorithm (S106).

The generated checksum is transmitted by the communication module 116 of the user terminal 100 to the communication module 202 of the housekeeping system 200 through the Internet 300 (S108).

The search engine 206 searches the lyrics database 204 to determine whether there is a checksum equal to the transmitted checksum (S110).

4 is a structural diagram showing a structure of a record stored in the lyrics database. Each record is divided into checksums, titles, singers, lyrics data, and other information, and the structure of the records stored in the lyrics database may vary.

The checksum stored with each lyrics data is a hash code generated from the specific sound source data, and the lyrics data stored together record the lyrics content corresponding to the specific sound source data.

For example, if a song called 'Anthem' is arranged in a different way and called by a different singer, the melody, speed, and performance of the song may vary according to each version. Lyrics providing system 200 retrieves the lyrics data produced for various versions of the music as described above and transmits to the user terminal (100) (S112).

The lyrics data transmitted to the user terminal 100 is displayed on the monitor 112 in synchronization with the sound source data to be reproduced, thereby completing the search operation.

The lyrics data transmitted to the user terminal 100 may be temporarily stored in the memory and then extinguished when the reproduction of the sound source is completed, or may be permanently stored in the storage device to be used later.

On the other hand, if there is no lyrics desired by the user in the lyrics database 204, the user may store the lyrics data created by the user in the lyrics database 204.

At this time, the user generates the checksum using the checksum extraction engine 114 while playing the sound source data stored in the user terminal 100 of the user. Then, the generated checksum and the own lyrics data are transmitted to the lyrics providing system 200, and the lyrics providing system 200 stores the checksum and lyrics data transmitted through a predetermined verification process in the lyrics database 204. Done.

Users who store the lyrics can be encouraged to participate by exempting the use of the lyrics search service or paying various kinds of payments.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the above-described technical configuration of the present invention may be embodied by those skilled in the art to which the present invention pertains without changing its technical spirit or essential features of the present invention. It will be appreciated that the present invention may be practiced as. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

1 is a conceptual diagram showing the structure of a terminal used for the housework search service according to the prior art.

2 is a structural diagram showing a connection state of the lyrics search system according to an embodiment of the present invention.

3 is a flow chart showing the flow of the lyrics search method of the present invention.

4 is a structural diagram showing the structure of a record stored in the lyrics database;

Claims (7)

delete A user terminal for searching and outputting lyrics data corresponding to the song to be played, A sound source playback unit for calling sound source data stored in a sound source database or an external storage device and converting the sound source data into a voice signal or converting sound source data streamed from another user terminal connected through the Internet into a voice signal; A speaker for outputting the voice signal; A checksum extraction engine for generating a checksum for music identification by extracting a predetermined portion from the sound source data reproduced by the sound source playback unit; And a communication module for transmitting the checksum generated from the specific sound source data to the lyrics providing system through the Internet. The lyrics providing system searches for lyrics data corresponding to the checksum transmitted from the user terminal and transmits the lyrics data to the user terminal. The user terminal converts the lyrics data transmitted from the lyrics providing system into a video signal, and outputs the video signal through a monitor, The checksum generated by the checksum extraction engine is a hash code. The checksum extraction engine It is possible to search for lyrics through the Internet, characterized by extracting the front part of the data excluding metadata from the sound source data by a predetermined length, and generating a specific hash code by inputting the front part of the extracted data into a hash algorithm (Hash Algorithm). User terminal. The method of claim 2, The lyrics providing system includes a lyrics database for storing lyrics data, The lyrics database stores a plurality of lyrics data with a checksum corresponding to each lyrics data, the user can search the lyrics via the Internet. delete A lyrics providing system for retrieving lyrics data corresponding to a song played by a user terminal including a checksum extraction engine for generating a checksum for sound source data and transmitting the same to the user terminal. A lyrics database for storing a plurality of lyrics data together with checksums corresponding to the respective lyrics data; A communication module for receiving the checksum when a checksum for sound source data reproduced in the user terminal is input through the Internet; A search engine for searching whether the same checksum as the checksum inputted to the communication module exists in the lyrics database, and calling the lyrics data corresponding to the found checksum if the same checksum is found; The communication module transmits the lyrics data called by the search engine to the user terminal through the Internet, The checksum generated by the checksum extraction engine is a hash code. The checksum extraction engine And extracting the front portion of the data excluding the metadata from the sound source data by a predetermined length, and generating a specific hash code by inputting the front portion of the extracted data into a hash algorithm. The method of claim 5, Sound source data converted into a voice signal in the user terminal is Lyrics providing system via the Internet, characterized in that the sound source data stored in the sound source database or an external storage device of the user terminal or one of the sound source data streamed from another user terminal connected via the Internet. The method of claim 6, And a lyrics input unit for receiving new lyrics data input from the user terminal and storing the lyrics data in the lyrics database. And a checksum corresponding to the lyrics data when storing the new lyrics data.

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