KR100741482B1 - Method and system for providing multimedia contents and subtitle information corresponding thereto to personal information processor - Google Patents

Abstract

The present invention relates to a method and a system for providing multimedia contents and corresponding subtitle information to a predetermined personal information processor. More particularly, the present invention relates to selecting a subtitle search keyword from contents information included in the multimedia contents, and providing contents. The present invention relates to a method and a system for transmitting caption information request queries to a system, receiving caption information, and implanting caption information in the multimedia content and providing the caption information to the personal information processor.

In accordance with another aspect of the present invention, a method for providing caption information includes receiving multimedia content from a content providing system, extracting predetermined content information included in the multimedia content, analyzing the content information, selecting a caption search keyword, and the content. Transmitting a subtitle information request query corresponding to the subtitle search keyword to a providing system; receiving an acknowledgment including subtitle information from the content providing system; associating the subtitle information with the multimedia content to integrate content-subtitles Generating information, and encrypting the content-subtitle integrated information and transmitting the encrypted information to the personal information processor.

According to the present invention, there is provided a caption information providing method and a system which can download caption information quickly and easily, and can easily provide a single piece of integrated information generated by transplanting it into content to a personal information processor.

Subtitle information, encryption, decryption, DRM, personal information processor

Description

METHOD OF PROVIDING A PERSONAL INFORMAION PROCESSOR WITH CAPTION INFORMATION CORRESPONDING TO MULTIMEDIA CONTENTS AND A SYSTEM THEREOF}

1 is a diagram illustrating a network connection for implementing a method and a system for providing caption information according to the present invention.

2A and 2B are flowcharts illustrating a method for providing caption information according to an embodiment of the present invention.

3 is a diagram illustrating an example of header information according to an embodiment of the present invention.

4 is a flowchart illustrating a method of providing subtitle information according to an embodiment of the present invention, which is performed according to whether a subtitle search keyword is appropriately selected.

5 is an internal block diagram of a general purpose computer device that may be employed to perform the method for providing subtitle information according to the present invention.

<Explanation of symbols for the main parts of the drawings>

101: multimedia content 102: content-caption integration information

110: client terminal 120: content providing system                 

130: subtitle database 140: personal information processor

The present invention relates to a method and a system for providing multimedia contents and corresponding subtitle information to a predetermined personal information processor. More particularly, the present invention relates to selecting a subtitle search keyword from contents information included in the multimedia contents, and providing contents. The present invention relates to a method and a system for transmitting caption information request queries to a system, receiving caption information, and implanting caption information in the multimedia content and providing the caption information to the personal information processor.

As a method for managing data recorded in various personal information processors (PIPs) such as MP3 players, PDAs, handheld PCs, and mobile communication terminals, a personal computer (PC) to a personal information processor is typically used. There is a method of synchronizing data and files between them. This synchronization method is a connection method of a personal computer to a personal information processor using a wired method, such as a serial port or a universal serial bus (USB) port, commonly referred to as cradle synchronization, or an infrared port, Bluetooth, There is a connection method of a personal computer to a personal information processor using a wireless method such as Wi-Fi. In addition, as a method of transmitting data to a personal information processor that is currently widely activated, the personal information processor connected to a personal computer through a universal serial bus (USB) or the like is recognized as a mass storage device as a file. Alternatively, a UMS (USB Mass Storage) method for freely transmitting data is used.

On the other hand, recently receiving multimedia content such as video files, MP3 format music files, etc. from a web site to a personal computer (PC) using the Internet, and connected to the personal information processor to the personal computer again to download the received multimedia content The service to receive and play back is activated.

When a user plays multimedia content such as a video file or an MP3 format music file using a personal information processor, the user needs to simultaneously display caption information corresponding to the multimedia content on the liquid crystal of the personal information processor and provide the same to the user. For example, when a user plays movie content using a personal information processor, but the movie is in a foreign currency, the user needs subtitles, and when the user plays music using a personal information processor, the user plays the music. You will need lyrics.

However, according to the related art, the user has to download such multimedia contents and subtitle information through a separate process. That is, after the user downloads the multimedia content, the user should make an effort to search for the subtitle information corresponding to the downloaded multimedia content on the Internet and download it again. In addition, the user had to make a lot of effort to map the downloaded subtitle information to the multimedia contents.

In addition, recent content providing systems are encrypted via a predetermined Digital Rights Management (DRM) module, which refers to technologies and services that protect the interests and rights of copyright holders by preventing unauthorized use of digital content. There exists a case of providing a multimedia content, according to the subtitle service method according to the prior art there was a limit that can not provide a subtitle service for the encrypted content.

Korean Patent No. 10-0316508 relates to a method of synchronizing digital audio data captions. The caption data finds playback point information by extracting and comparing waveforms of key words based on the first word or the first syllable of the caption unit. Disclosed is a method of synchronizing digital audio data captions by mapping to digital audio data on a per-unit basis to enable editing and importing of various caption information based on the digital audio data, and to optimize the caption display amount according to the screen display capability of the liquid crystal display device. Doing.

However, the synchronization method may make the process of mapping subtitle information to multimedia content easier. However, even when using the synchronization method, the user still needs to download multimedia content and subtitle information through separate processes. 2) the user must bear the inconvenience of file management because the multimedia content and the subtitle information are managed as separate files, and 3) the user connects the personal information processor to the personal computer. 4) Inconvenience to transmit multimedia contents and subtitle information respectively, when transmitting the data, 4) Inconvenient to still map the subtitle information to multimedia contents even if the user downloads the multimedia contents and subtitle information to the personal information processor. 5) encrypted content However, there are still problems such as a limitation that it is not possible to provide a subtitle service.

Accordingly, there has been a demand for the emergence of a new technology capable of receiving subtitle information together from a content providing system for providing multimedia contents and injecting subtitle information into multimedia contents and transmitting the same to a personal information processor.

The present invention has been made to solve the problems of the prior art as described above, by analyzing the content information included in the multimedia content to select a subtitle search keyword and the corresponding subtitle information request query content provided with the multimedia content It is an object of the present invention to provide a caption information providing method and a system capable of eliminating the inconvenience that a user must download multimedia contents and caption information through a separate process by transmitting the caption information to a provision system.

The method and system for providing caption information according to the present invention associates multimedia content with caption information to generate content-subtitle integration information, thereby preventing the user from inconvenience in file management because the multimedia content and caption information are managed as separate files. It aims to solve the problem of the prior art which should be taken.

The method and system for providing caption information according to the present invention associates caption information with multimedia content to generate content-caption integrated information, encrypts it, and transmits it to a personal information processor, thereby allowing a user to connect a personal information processor to a personal computer. The purpose of the present invention is to alleviate the inconvenience of the prior art in that the multimedia content and the subtitle information must be transmitted, respectively.

The method and system for providing caption information according to the present invention extract multimedia contents and caption information from the personal information processor, respectively, and generate content-caption integrated information that can be displayed by reading the caption information when the multimedia contents are played back. Even if the user downloads the multimedia content and the subtitle information to the personal information processor, the object of the prior art is to solve the inconvenience of still need to map the subtitle information to the multimedia content.

The method and system for providing caption information according to the present invention extract the content information by decrypting at least a part of the multimedia content encrypted through a predetermined digital rights management (DRM) module through a predetermined decryption module, thereby extracting the content information. The purpose is to provide an efficient subtitle service.

In order to achieve the above object and to solve the above-mentioned problems of the prior art, the method for providing caption information according to an embodiment of the present invention receives multimedia content from a content providing system, and predetermined content included in the multimedia content. Extracting information, analyzing the content information to select a subtitle search keyword, transmitting a subtitle information request query corresponding to the subtitle search keyword to the content providing system, and including subtitle information from the content providing system Receiving an acknowledgment response, generating the content-subtitle integration information by associating the caption information with the multimedia content, and encrypting the content-subtitle integration information and transmitting the encrypted content to the personal information processor. It features.

In accordance with another aspect of the present invention, there is provided a method for providing caption information, the method comprising: receiving multimedia content from a content providing system, extracting predetermined content information included in the multimedia content, analyzing the content information according to a predetermined criterion; Determining whether the subtitle search keyword is appropriate for selecting the first subtitle search keyword by analyzing the content information when the selection is appropriate; and selecting the second subtitle search keyword from the user when the selection is not appropriate. Receiving a keyword, transmitting a subtitle information request query corresponding to any one of the first subtitle search keyword and the second subtitle search keyword to the content providing system, and including caption information from the content providing system Receiving a response, the multimedia Associating the caption information with content to generate content-subtitle integration information, and encrypting the content-subtitle integration information and transmitting the encrypted content to the personal information processor.

The personal information processor widely used herein includes a predetermined memory means such as a PDA (Personal Digital Assistant), an MP3 player, a handheld PC, an electronic dictionary, a mobile phone, and the like by mounting a predetermined microprocessor. It is a concept to collectively refer to the terminal with the computing power of. In addition, data synchronization includes maintaining data consistency through two-way communication between a personal information processor and a personal computer, as well as transmitting predetermined data or files stored in the personal computer to the personal information processor. Concept.

Hereinafter, a method and a system for providing caption information according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a network connection for implementing a method and a system for providing caption information according to the present invention.

The user may access the content providing system 120 through the client terminal 110 and download the multimedia content 101 desired by the user on the client terminal 110. Here, the content providing system 120 may mean, in detail, an internet web site capable of downloading the multimedia content 101 or an operation server operating the web site, and the content providing system 120 may include the content providing system 120. ) Can maintain a caption database including caption information corresponding to the multimedia content 101 provided. Referring to Fig. 1, Web sites A and B maintain subtitle databases containing subtitle information corresponding to the multimedia content 101, while Web site C does not maintain such subtitle databases.

The client terminal 110 receiving the multimedia content 101 from the content providing system 120 extracts predetermined content information included in the multimedia content 101, analyzes the selected content information, selects a subtitle search keyword, and selects the selected subtitle search keyword. The caption information request query corresponding to the caption search keyword is transmitted to the content providing system 120.                     

The content providing system 120 receiving the caption information request query maintains a caption database that records caption information corresponding thereto (in the case of Web sites A and B in FIG. 1). Extract and transmit an acknowledgment to the client terminal 110, and the client terminal 110 may generate the content-subtitle integration information 102 by associating it with the multimedia content 101.

On the other hand, if the content providing system 120 receiving the subtitle information request query does not maintain a subtitle database that records subtitle information corresponding thereto (in the case of Web site C in FIG. 1), the client terminal 110. ) Retransmits the subtitle information request query to a predetermined second subtitle database 130, receives subtitle information for the subtitle information request query from the second subtitle database 130, and associates it with the multimedia content 101. One piece of content-caption integration information 102 may be generated.

The user may connect the personal information processor 140 to the client terminal 110 and transmit the content-caption integrated information 102 generated through the above process to the personal information processor 140. As described later, in this case, the client terminal 110 may encrypt the content-subtitle integrated information 102 through a predetermined encryption and module installed in the client terminal 110 and transmit the encrypted content-subtitle integrated information 102 to the personal information processor 140.

2A and 2B are flowcharts illustrating a method for providing caption information according to an embodiment of the present invention. The caption information providing method according to the present embodiment may be performed on a predetermined client terminal.

In step 201, the client terminal receives multimedia content from a content providing system through a communication network, and in step 202, predetermined content information included in the multimedia content is extracted.

Content information used in the present specification may mean all information associated with the content, and may include content content information, header information, and the like, including content meta information.

Here, the content content information means information about content included in the content. For example, when the content is a sound source file, the content content information may include a composer, a singer, a song title, a song playing time, information about an album including a song, and the like. As another example, when the content is a video file containing a movie, the content content information may mean the title, director, production company, lead actor, production year, etc. of the movie. As such, the content content information may mean various information about content included in the content, and the content content information may also vary according to the type of content.

On the other hand, the header (header) information is information that is included before the present content of the content, it means a field that describes the length of the content included in the content or other characteristics of the content. When the content is transmitted through a communication network, the header information may include source information (eg, acquisition URL) and the like regarding where the content is transmitted from. 3 is a diagram illustrating an example of such header information. As shown in FIG. 3, the header information includes version information on the content header format used for distinguishing when the header format of the content is changed, information on the creator of the content, and contents included in the content. It may include file information describing the length or other characteristics of the content, source information on the subject providing the content, and the like.

According to an embodiment of the present invention, the multimedia content received in step 201 is multimedia content encrypted through a predetermined digital rights management (DRM) module. Provided is a method for providing caption information, wherein the content information is extracted by decoding at least a part of the multimedia content through a predetermined decoding module.

Digital rights management (DRM) refers to technologies and services that protect the interests and rights of copyright-related parties by preventing unauthorized use of digital content, including multimedia content. Specifically, the rights and interests of content providers are secured. It is a technology that protects and prevents illegal copying and supports the creation, distribution, and management of contents such as charging royalties and payment agency. This includes digital rights management technology that ensures that only legitimate users use the content and pay the appropriate fees, software and security technologies for copyright approval and enforcement, and payment and payment technology.

In addition, digital rights management (DRM) is a digital object identifier (DOI) that is a content identifier, an interoperability of data in e-commerce system (INDECS) that records data needed for e-commerce, and watermarking for piracy and tamper proofing. It can also be configured to include additional water marking technology. DOI is an identification number assigned to digital content, and watermarking is a technology that can identify who is the digital copyright holder when a copyright dispute occurs after hiding confidential information in digital data. If you do not pay, you will not be able to use the content.

In step 203, the client terminal analyzes the content information to select a subtitle search keyword. In the present invention, the subtitle search keyword is used as a means for receiving subtitle information corresponding to the received multimedia content.

According to an embodiment of the present invention, the content information extracted in step 202 includes content content information associated with the multimedia content, and the client terminal determines the subtitle search keyword from the content content information in step 203. Provided is a method for providing caption information, characterized in that for selecting. Since the meaning of the content content information has been described above, a detailed description thereof will be omitted.

In the present embodiment, the multimedia content may be a sound source file in an MP3 file format, and in this case, the content content information may be ID3 tag information associated with the sound source file. ID3 tag information exists in a sound source in the MP3 file format, and the ID3 tag information may include various types of information about the sound source.

According to an embodiment of the present invention, the ID3 tag information includes one or more of title information, singer information, song play time information, and album information associated with a sound source corresponding to the sound source file, and the client terminal comprises the steps of: In operation 203, the method for providing caption information is provided, wherein the caption search keyword is selected using the one or more pieces of information. In case of using the song play time information, for example, when the same song exists in the normal version and the live version, the general version of the song was downloaded and the lyrics were downloaded to the live version of the song, or vice versa. It can be prevented from occurring.

According to an embodiment of the present invention, the multimedia content received in step 201 is a sound source file, and the client terminal determines the original file name information when the original file name information associated with the sound source file exists in step 202. Extract the stored file name information of the sound source file if the original file name information does not exist, and selects the subtitle search keyword from any one of the original file name information and the stored file name information in step 203. A caption information providing method is provided. When selecting a subtitle search keyword from the original file name information in step 203, it may include an extension of the original file name, and may not include the extension of the stored file name when selecting the subtitle search keyword from the stored file name information.

According to the present exemplary embodiment, even if the content content information of the sound source file is not sufficiently recorded to select the subtitle search keyword, the subtitle search keyword may be selected in another way, and the subtitle information request may be made using the same. The effect can be obtained.

According to an embodiment of the present invention, by analyzing the content information, it is determined whether or not it is appropriate to select the subtitle search keyword according to a predetermined criterion, and select the subtitle search keyword or the subtitle search keyword from the user according to the determination result Provided is a method for providing subtitle information that can be inputted. FIG. 4 is a flowchart illustrating a method for providing subtitle information according to the present embodiment.

In step 401, the client terminal according to the present embodiment receives multimedia content from the content providing system, and in step 402, predetermined content information included in the multimedia content is extracted.

In step 403, the client terminal analyzes the content information to determine whether it is appropriate for selecting a subtitle search keyword according to a predetermined criterion.

For example, when the multimedia content is a sound source file in MP3 format and the content information includes ID3 tag information, the predetermined criterion is title information and artist information associated with a sound source corresponding to the sound source file in the ID3 tag information. It may be related to whether or not one or more pieces of information, song playback time information, and album information is recorded.

As a result of the determination in step 403, if the selection is appropriate, the client terminal analyzes the content information in step 404a to select the first subtitle search keyword, and if the selection is not appropriate from the user in step 404b. The second subtitle search keyword may be input.

As a method of selecting the first subtitle search keyword by analyzing the content information in step 404a, a method of extracting a predetermined string and selecting a string corresponding to a noun among extracted strings may be used. Various string extraction methods used to extract keywords may be used.

In step 404b, the user may be requested to input a caption search keyword for receiving caption information. For example, when the multimedia content is an MP3 format sound source file, one or more pieces of title information, artist information, song play time information, and album information associated with the sound source corresponding to the sound source file may be received.

On the other hand, unlike the above embodiment in which it is possible to determine whether it is appropriate to select the subtitle search keyword and receive the subtitle search keyword from the user according to the determination result, according to another embodiment of the present invention, the subtitle search It may be implemented to receive a subtitle search keyword from a user after receiving multimedia content without determining whether the keyword is appropriate for selecting the keyword. After receiving the multimedia content from the content providing system, the client terminal for performing the method for providing caption information according to the present embodiment may include steps 202 and 203 of FIG. 2A or steps 402 and 4 of FIG. Instead of performing step 403, the subtitle search keyword may be directly input from the user.

In step 204 of FIG. 2A, the client terminal transmits a caption information request query corresponding to the caption search keyword to the content providing system.

In the caption information providing method according to an embodiment of the present invention described with reference to FIG. 4, the client terminal analyzes the content information in step 204 and selects the first caption search keyword and the user inputs the second caption search. A caption information request query corresponding to any one of keywords may be transmitted to the content providing system.

According to one embodiment of the invention, the content information extracted in step 202 may include header information associated with the multimedia content received in step 201, the client terminal from the header information Source information (acquisition URL, etc.) associated with the multimedia content may be extracted. Since the header information has already been described with reference to FIG. 3, a detailed description thereof will be omitted.

In operation 204, the client terminal may identify a content providing system that has transmitted the multimedia content from the source information, and transmit the caption information request query to the identified content providing system.

In step 201, the content providing system for transmitting multimedia content to the client terminal through the communication network receives the subtitle information request query corresponding to the subtitle search keyword from the client terminal in step 204, and the subtitle in step 205. If a caption database recording information is maintained, the caption information is extracted with reference to the caption database, and an acknowledgment including the caption information is transmitted to the client terminal through a communication network. In operation 205, the content providing system may maintain a caption database including caption information corresponding to multimedia content. In addition, the caption search keyword may be selected from predetermined content information included in the multimedia content by the client terminal or input from the user of the client terminal to the client terminal.

On the other hand, when the content providing system does not maintain the caption database, it transmits an acknowledgment that it does not include caption information to the client terminal through a communication network. On the other hand, the content providing system maintains a caption database, but if the caption information for the caption information request query is not recorded in the caption database, the client receives a confirmation response through the communication network. Can be sent to the terminal.

For example, the content providing system is a sound source file of a format such as MP3, WMA, RA, or a video file such as WMV, AVI, MPG, etc., and the content information is based on an identifier based on a DB such as CDDB. When included, the predetermined criterion may select a subtitle search keyword in another way based on one or more of title information, artist information, song play time information, and album information associated with a sound source corresponding to the sound source file in the tag information. In addition, it is possible to obtain an effect of making a request for subtitle information using the same.

In step 206, the client terminal checks whether subtitle information is included in the received acknowledgment, and performs the following process.

If the confirmation in step 206 does not receive an acknowledgment that the caption information is included from the content providing system, in step 207 the client terminal retransmits the caption information request query to a predetermined second caption database. Can be. In this case, the second subtitle database may transmit subtitle information for the subtitle information request query to the client terminal in step 208. The second subtitle database may be an entity designated to be connected by default when there is no subtitle database in the content providing system or no subtitle data for the subtitle information request query in the subtitle database.

Through the above process, the method and system for providing caption information according to the present invention analyze the content information included in the multimedia content to select a subtitle search keyword and the corresponding subtitle information request query to provide the multimedia content. By receiving the subtitle information by transmitting to the providing system, it is possible to eliminate the inconvenience that the user must download the multimedia content and subtitle information through a separate process.

According to an embodiment of the present invention, the client terminal may modify the caption information to match the liquid crystal type of the personal information processor connected to the client terminal by using a predetermined modification module installed in the client terminal. A method for determining the liquid crystal type of the personal information processor, comprising: (1) a method of obtaining a product identifier of a personal information processor to obtain liquid crystal type information of a personal information processor corresponding to the product identifier, (2) A method of receiving liquid crystal type information of the personal information processor from the user may be used. Then, in step 209, the modified subtitle information is associated with the multimedia content received in step 201 to generate content-caption integration information.

Through the above process, the method and system for providing subtitle information according to the present invention associates the multimedia content with the subtitle information to generate the content-subtitle integrated information, so that the multimedia content and the subtitle information are managed as separate files. It is possible to solve the problem that the user must bear the inconvenience of file management.

In step 210, the client terminal encrypts the content-subtitle integrated information through a predetermined password and a module installed in the client terminal. In this case, the encryption module is implemented to operate in correspondence with the decryption module installed in the personal information processor connected to the client terminal.

In step 211, the client terminal transmits the encrypted content-caption integration information to a personal information processor connected to the client terminal.

Through the above process, the method and system for providing caption information according to the present invention associates the caption information with the multimedia content to generate the content-caption integrated information, encrypts it, and transmits it to the personal information processor, thereby allowing the user to access the personal computer. When transmitting a file by connecting a personal information processor, it is possible to alleviate the inconvenience of transmitting multimedia content and subtitle information, respectively.

Steps 212 to 217 correspond to a method for displaying subtitle information on the liquid crystal of the personal information processor while the personal information processor receiving the encrypted content-caption integration information plays the multimedia content.

In step 212 the personal information processor extracts the caption information from the content-subtitle integration information.

In step 213, the personal information processor decodes the caption information through the decoding module, and in step 214 records the decoded caption information in a predetermined memory means.

In step 215, the personal information processor extracts the multimedia content from the content-subtitle integrated information, and in step 216, the multimedia content is decoded and reproduced through the decoding module.

In step 217, the personal information processor reads the subtitle information from the memory means and displays it on the liquid crystal of the personal information processor while playing the multimedia content.

Through the above process, the method and system for providing caption information according to the present invention extract the multimedia content and the caption information from the personal information processor, and the caption information can be read and displayed when the multimedia content is played. By generating the caption integrated information, even if the user downloads the multimedia content and the caption information to the personal information processor, it is possible to alleviate the inconvenience of mapping the caption information to the multimedia content.

In addition, embodiments of the present invention include computer-readable media containing program instructions for performing various computer-implemented operations. The program recorded on the computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.                     

5 is an internal block diagram of a general purpose computer device that may be employed to perform the method for providing subtitle information according to the present invention.

The computer device includes one or more processors 510 connected with a main memory device including random access memory (RAM) 520 and read only memory (ROM) 530. The processor 510 is also called a central processing unit (CPU). As is well known in the art, the ROM 530 serves to transfer data and instructions to the CPU unidirectionally, and the RAM 520 typically transfers data and instructions bidirectionally. Used to. RAM 520 and ROM 530 may include any suitable form of computer readable media. Mass storage 540 is bidirectionally coupled to processor 510 to provide additional data storage capability and may be any of the computer readable recording media described above. The mass storage device 540 is used to store programs, data, and the like, and is a secondary memory device such as a hard disk which is generally slower than the main memory device. Certain mass storage devices such as CD ROM 560 may be used. The processor 510 may include one or more input / output interfaces, such as video monitors, trackballs, mice, keyboards, microphones, touchscreen displays, card readers, magnetic or paper tape readers, voice or handwriting readers, joysticks, or other known computer input / output devices. 550 is connected. Finally, the processor 510 may be connected to a wired or wireless communication network through the network interface 570. Through this network connection, the procedure of the method described above can be performed. The apparatus and tools described above are well known to those skilled in the computer hardware and software arts.

The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by the equivalents of the claims.

According to the method and system for providing caption information according to the present invention, by selecting the caption search keyword by analyzing the content information included in the multimedia content, and transmits the corresponding caption information request query to the content providing system for providing the multimedia content. By receiving the caption information, it is possible to obtain an effect that the user can eliminate the inconvenience of having to download the multimedia content and the caption information through a separate process.

According to the method and system for providing caption information according to the present invention, the multimedia content and the caption information are generated by associating the caption information with the multimedia content, so that the user is inconvenient in file management because the multimedia content and the caption information are managed as separate files. This can solve the problem of having to accept the problem.                     

According to a method and a system for providing caption information according to the present invention, a user connects a personal information processor to a personal computer by associating the caption information with multimedia content, generating content-caption integrated information, encrypting the information, and transmitting the same to a personal information processor. In this case, the inconvenience of having to transmit the multimedia content and the subtitle information can be obtained.

According to the method and system for providing caption information according to the present invention, multimedia content and caption information are extracted on a personal information processor, and when the multimedia content is played, the caption information is read and displayed to generate content-caption integrated information. Thus, even if the user downloads the multimedia content and the subtitle information to the personal information processor, the inconvenience of still having to map the subtitle information to the multimedia content can be obtained.

According to the method and system for providing subtitle information according to the present invention, the encrypted content by extracting the content information by decrypting at least a portion of the multimedia content encrypted through a predetermined digital rights management (DRM) module through a predetermined decryption module, It is also possible to obtain an effect that can provide an efficient subtitle service for.

Claims (18)

In the method for providing multimedia content and subtitle information corresponding thereto to a predetermined personal information processor, Receiving multimedia content from a content providing system and extracting predetermined content information included in the multimedia content; Analyzing the content information to select a subtitle search keyword; Transmitting a caption information request query corresponding to the caption search keyword to the content providing system; Receiving an acknowledgment including caption information from the content providing system; Associating the caption information with the multimedia content to generate content-subtitle integration information; And Encrypting the content-caption integration information and transmitting it to the personal information processor Caption information providing method comprising a. The method of claim 1, Receiving an acknowledgment including subtitle information from the content providing system, Retransmitting the subtitle information request query to a predetermined subtitle database when the confirmation response is not received from the content providing system; And Receiving caption information for the caption information request query from the caption database; Caption information providing method comprising a. The method of claim 1, The multimedia content is multimedia content encrypted through a predetermined digital rights management (DRM) module, The extracting of the predetermined content information included in the multimedia content may include: And decoding the at least a part of the multimedia content through a predetermined decoding module to extract the content information. The method of claim 1, The content information includes content content information associated with the multimedia content, The step of selecting the subtitle search keyword by analyzing the content information, And selecting the subtitle search keyword from the content content information. The method of claim 4, wherein The multimedia content is a sound source file in MP3 file format, And the content content information is ID3 tag information associated with the sound source file. The method of claim 5, The ID3 tag information includes at least one of title information, artist information, song play time information, and album information associated with a sound source corresponding to the sound source file. The step of selecting the subtitle search keyword by analyzing the content information, And selecting the subtitle search keyword by using the one or more pieces of information. The method of claim 1, The multimedia content is a sound source file, The extracting of the predetermined content information included in the multimedia content may include: Extracting the original file name information when the original file name information associated with the sound source file exists; extracting the stored file name information of the sound source file when the original file name information does not exist; The step of selecting the subtitle search keyword by analyzing the content information, And selecting the subtitle search keyword from any one of the original file name information and the stored file name information. The method of claim 1, The content information includes header information associated with the multimedia content, Extracting source information associated with the multimedia content from the header information; The step of transmitting a subtitle information request query corresponding to the subtitle search keyword to the content providing system, Identifying the content providing system from the source information; And Transmitting the caption information request query to the identified content providing system; Caption information providing method comprising a. The method of claim 1, The step of encrypting the content-caption integrated information and transmitting it to the personal information processor, Encrypting the content-caption integration information through a predetermined cipher and module, wherein the encryption module is implemented to operate corresponding to a decryption module installed in the personal information processor; And Transmitting the encrypted content-caption integration information to the personal information processor. Caption information providing method comprising a. The method of claim 9, The personal information processor extracts the caption information from the transmitted content-subtitle integrated information, decodes the extracted caption information in a predetermined memory means, and reproduces the caption information from the memory means while playing the multimedia content. The caption information providing method of reading information and displaying the information on a liquid crystal of the personal information processor. The method of claim 1, Modifying the caption information to match the liquid crystal type of the personal information processor; The step of associating the caption information with the multimedia content to generate content-subtitle integration information, And generating the content-subtitle integration information by associating the modified subtitle information with the multimedia content. In the method for providing multimedia content and subtitle information corresponding thereto to a predetermined personal information processor, Receiving multimedia content from a content providing system and extracting predetermined content information included in the multimedia content; Whether the content information is appropriate for selecting a subtitle search keyword according to whether the at least one of title information, artist information, song play time information, and album information associated with the multimedia content is recorded in the content information; Determining; If the selection is appropriate, analyzing the content information to select a first subtitle search keyword, and if the selection is not appropriate, receiving a second subtitle search keyword from a user; Transmitting a caption information request query corresponding to one of the first subtitle search keyword and the second subtitle search keyword to the content providing system; Receiving an acknowledgment including caption information from the content providing system; Associating the caption information with the multimedia content to generate content-subtitle integration information; And Encrypting the content-caption integration information and transmitting it to the personal information processor Caption information providing method comprising a. In the method for providing multimedia content and subtitle information corresponding thereto to a predetermined personal information processor, Receiving multimedia content from a content providing system; Receiving a caption search keyword from a user; Transmitting a caption information request query corresponding to the caption search keyword to the content providing system; Receiving an acknowledgment including caption information from the content providing system; Associating the caption information with the multimedia content to generate content-subtitle integration information; And Encrypting the content-caption integration information and transmitting it to the personal information processor Caption information providing method comprising a. In the content providing method for providing multimedia content and subtitle information corresponding thereto, Maintaining a caption database including caption information corresponding to the multimedia content; Transmitting the multimedia content to a client terminal through a communication network; Receiving a caption information request query corresponding to a caption search keyword from the client terminal, wherein the caption search keyword is selected from predetermined content information included in the multimedia content or is input from the user of the client terminal to the client terminal; ; And Transmitting an acknowledgment including caption information to the client terminal by referring to the caption database; Including, And the client terminal associates the transmitted caption information with the multimedia content to generate content-caption integration information, encrypts the content-caption integration information, and transmits the content to the predetermined personal information processor. A method for displaying caption information on a liquid crystal of the personal information processor while playing multimedia content using a predetermined personal information processor, the method comprising: Receiving content-caption integration information from a client terminal, wherein the content-caption integration information is encrypted through a predetermined encryption module installed in the client terminal, and the encryption module operates in response to a decryption module installed in the personal information processor. The content-caption integration information is multimedia content associated with subtitle information; Extracting the caption information from the content-caption integration information; Decoding the caption information through the decoding module and recording the caption information in a predetermined memory means; Extracting the multimedia content from the content-caption integration information; Decoding and playing the multimedia content through the decoding module; And Reading the subtitle information from the memory means and playing the multimedia content on the liquid crystal of the personal information processor; Caption information display method comprising a. A computer-readable recording medium in which a program for executing the method of any one of claims 1 to 15 is recorded. A client terminal for providing multimedia content and subtitle information corresponding thereto to a predetermined personal information processor, The client terminal, Receive multimedia content from a content providing system, extract predetermined content information included in the multimedia content, analyze the content information to select a subtitle search keyword, and the subtitle corresponding to the subtitle search keyword to the content providing system. Send an information request query, receive an acknowledgment including caption information from the content providing system, associate the caption information with the multimedia content to generate content-caption integration information, and encrypt the content-caption integration information To be sent to the personal information processor Client terminal characterized in that. In the content providing system for providing multimedia content and subtitle information corresponding thereto, The content providing system, Maintain a subtitle database including subtitle information corresponding to the multimedia content, transmit the multimedia content to a client terminal through a communication network, receive a subtitle information request query corresponding to the subtitle search keyword from the client terminal, and perform the subtitle search. A keyword is selected from predetermined content information included in the multimedia content or is input from the user of the client terminal to the client terminal, and transmits an acknowledgment including the caption information to the client terminal with reference to the caption database; The client terminal associates the transmitted caption information with the multimedia content to generate content-caption integration information, encrypts the content-caption integration information, and transmits the content to the predetermined personal information processor. Content providing system, characterized in that.

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