KR20050001174A - Method for selecting the same multimedia contents - Google Patents

Abstract

PURPOSE: A method for detecting overlapped multimedia contents is provided to prevent contents which are already stored or downloaded from being retransmitted, when downloading the contents by using a VOD or AOD function, thereby preventing a waste of contents charges. CONSTITUTION: When new contents are downloaded, original file information stored in a terminal is read(202), and the read file information is compared with newly downloaded file information(203). If the compared information is the same, a system confirms whether a newly downloaded file is received(205). If so, the system outputs a message showing that the file is once downloaded and deleted on the first or second display of the terminal(206). If the file is not deleted, the system outputs a message showing that the same file information exists on the display(207).

Description

Method for detecting multimedia duplicate content {Method for selecting the same multimedia contents}

The present invention relates to a method for detecting multimedia duplicate content of a mobile communication terminal. More specifically, when downloading content using a VOD or AOD in a mobile communication terminal having a multimedia function, it has not been previously stored or downloaded. The present invention relates to a method for detecting duplicate content of a multimedia, which can prevent a content from being retransmitted, thereby preventing a user from wasting content transmission fees.

Recently, mobile communication terminals having a multimedia function, which enables video display, are being introduced in recent years, when IMT-2000 (International Mobile Telecommunications-2000) technology is being pushed forward.

In this way, the mobile communication terminal equipped with the video function is larger than before and adopts a color LCD (Liquid Crystal Display) instead of a single color to enable video on demand (VOD) and audio on demand (AOD) as well as to mount a camera. In this case, users of the video terminal can make a video call while looking at each other's video.

In the above-described conventional multimedia terminal, VOD and AOD content download can be confirmed only when the same name exists in the user terminal.

However, the multimedia contents provided by the multimedia service provider of the mobile communication system are not user-friendly names, so if the user who downloaded the contents changes the name of the contents according to his / her preferences, the VOD or AOD is later added. When you try to download the multimedia content by accessing the problem, there is a problem that can not check whether the duplicate.

If a certain period of time has passed after deleting previously downloaded content, when downloading new content such as deleted content, it is not possible to check whether it has been received before. There is an increasing problem.

Therefore, the present invention has been proposed to solve the above-mentioned conventional problems. When downloading content using a VOD or AOD in a mobile communication terminal having a multimedia function, the content that has been previously stored or downloaded is It is an object of the present invention to provide a method for detecting duplicate content of a multimedia, which can prevent a retransmission, thereby preventing a waste of content transmission fee.

In the present invention, even if the user changes or deletes the name of the multimedia content downloaded through VOD, AOD, or MMS (Multi Media Service) or the like, the original file information is stored in the terminal database and has been previously downloaded. Will be confirmed.

The terminal database contains file information such as the original file name, size, content creation date, etc. provided by the operator. The file information is not visible to the user and is kept inside the terminal so that the user does not need to perform additional work.

In addition to the file information, a portion of the original binary data is also stored.

In order to achieve the above object, the present invention provides a method for detecting overlapping content when downloading multimedia content in a mobile communication terminal. And comparing the information stored in the generated field with the file or binary information of the multimedia content to be newly downloaded. If the two information are different from each other, the download is executed and if the two information are the same, the user is notified of the download. It comprises a step of confirming whether to receive.

The field of the multimedia content file stores the original name and size of the downloaded multimedia file or binary content, the creation date and time, and the download date and time.

The step of confirming whether or not to download includes checking whether a file or binary of a multimedia content to be newly downloaded or a file or binary already exists or outputting a confirmation result as a message and content information stored in a field of the multimedia content file. The number of times is limited to a certain number, and a predetermined period of time is limited and stored.

The file received by streaming in the step of generating and storing the field stores the original name and size of the predetermined file or binary, the creation date and time, and the downloaded date and time information in the database of the terminal.

The binary information is decompressed and then compared with the binary information of the already downloaded content and the binary information of the newly downloaded content.

1 is a block diagram showing the internal operation of a multimedia terminal to which the present invention is applied.

2 is a flowchart illustrating an overall operation flow according to a method for detecting a file of multimedia redundant content according to an embodiment of the present invention.

3 is a flowchart illustrating an overall operation flow according to a binary detection method of multimedia redundant content according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the internal operation of a multimedia terminal to which the present invention is applied.

Referring to FIG. 1, the controller 100 controls the overall operation of the mobile communication terminal 150 to perform a function of downloading or processing a file or binary of a voice / video call and various multimedia contents.

In addition, if there is a multimedia mode request from a user for implementing a multimedia service, the codec unit 102 controls the codec 102 to decompress and decode the still image or video data wirelessly received from an external network, and to decode the image input unit 104. Still image or moving image data input from the control is encoded and then compressed into a predetermined format of JPEG / MPEG and controlled to be transmitted and received to the external network.

The memory 108 includes a predetermined database, stores a predetermined program for controlling the overall operation of the terminal, and sets a predetermined area for data input / output when the overall operation of the terminal is performed by the controller 100. Store in

RF (Radio Frequency) unit 110 refers to a comprehensive configuration of the high frequency processing unit, the intermediate frequency processing unit and the baseband processing unit, the external as well as various multimedia data including VOD and AOD from the external network received through the antenna (ANT) Intermediate frequency processing for processing the still image or video data wirelessly received through the network at a wireless communication band frequency, and lowering it back to a lower frequency band, and processing it as a signal of a frequency band that can be processed by the controller 100 again. do.

In addition, various still images or video data inputted from the image input unit 104 provided in the terminal and encoded and compressed by the codec unit 102 are modulated into wireless communication band frequency signals and wirelessly transmitted to an external network.

The audio unit 112 modulates the voice signal input through the microphone MIC into a wireless signal under the control of the control unit 100, and demodulates the wireless signal received through the RF unit 110 to the speaker SPK. It is sent as an audio signal.

In addition, when the multimedia content is downloaded, the wireless audio signal included in the still image or video data received from the RF unit 110 is demodulated and reproduced through a speaker SPK.

The key input unit 114 has a plurality of function keys including a plurality of numeric keys and a multimedia mode key implemented to set a multimedia mode for a multimedia service in a terminal, and corresponding key data when a user presses a predetermined key. Is generated and output to the control unit 100.

The first display unit 116 includes a liquid crystal display (LCD) for displaying various types of information of the terminal in a normal call mode, and displays key data generated by the key input unit 114 and various information signals of the controller 100. Receives input and displays it.

The second display unit 118 displays the multimedia data received from the image input unit 104 or the external network in color in the multimedia mode.

The image input unit 104 is for a two-way multimedia service. In the multimedia mode, the image input unit 104 inputs content contents or various multimedia data of the caller terminal user to the codec unit 102.

The codec unit 102 converts the captured image signal provided from the image input unit 104 into JPEG or MPEG format under the control of the control unit 100 and compresses it at a predetermined rate, and compresses the compressed image of multimedia data wirelessly received from an external network. Decompresses and decodes the signal to output to the second display unit 118.

The multimedia data wirelessly received from the external network includes various VOD and AOD data provided from Web servers or a plurality of image contents servers connected to a mobile switching center (not shown). do.

2 is a flowchart illustrating the overall operation flow according to the method for detecting a multimedia duplicate content file according to an embodiment of the present invention. When the operation is started under the control of the multimedia terminal controller 100, the multimedia terminal 150 transmits the multimedia content to the RF unit. Download via 110.

When downloading, a field for storing the original name and size of the downloaded multimedia content file, a creation date and time, and a downloaded date and time is stored in a database provided in the memory 108 of the terminal.

After generating the field, when the terminal user accesses the multimedia server to download the multimedia content, the multimedia content information is stored in the database of the terminal (201).

The name of the downloaded multimedia content file such as AOD, VOD or MMS is usually indicated as V200304181104.3gp, and thus is not a name that can be easily remembered by the user.

Therefore, in most cases, the downloaded file is changed to a name that is convenient for the user. At this time, the original information stored in the database of the terminal is not changed, and only the screen shown to the user is changed.

In this case, there is a method of changing a file name stored in a file system of a terminal and maintaining information in a database, and a method of changing an original name in a database without changing an actual file name.

If the information contained in the database is maintained, the user is shown the renamed name in the filesystem, and if the original name in the database is changed, the changed name in the database is shown.

That is, one side is left unchanged and the original name is preserved.

When the user tries to download new content as described above, the original file information stored in the terminal 201 is read (202), and the file information read and the newly downloaded file information on the server are compared with each other. 203), if the two informations are different from each other, a new download is started (204), and if the two informations are the same, the user is notified of the fact and checked to be downloaded.

The process of confirming whether or not to download is to check whether the file to be newly downloaded (205), and since the operator can change the name arbitrarily, even if the file name is different in this case, even if the file size or date is the same to the user Confirmation 205 is received and the download proceeds.

This is because the size of the multimedia content file is almost the same in byte units or the generation period is in the second unit.

Even if the service provider changes the name as described above, it is possible to check whether there is a duplication using other content information.

As a result of the check (205), if the file has already been deleted, a message that has been previously downloaded and then deleted is output (206) to the first or second display unit (116) 118 of the terminal 150 and already erased. If the file is not discarded, the same file exists in the database. Therefore, a message indicating that the file information is the same is output to the display unit (207).

After outputting to the display unit 206 (207) and nevertheless confirming whether to download the file (208) and proceeding with the download start step 204 if the file is to be downloaded, the operation is terminated if the file is not downloaded. do.

3 is a flowchart illustrating an overall operation flow according to a method of detecting a multimedia duplicate content binary according to another embodiment of the present invention. When the operation is started under the control of the multimedia terminal controller 100, the binary of the multimedia content is received from the multimedia terminal 150. It is downloaded through the RF unit 110.

When the download is performed, the terminal user generates a binary field for storing the original name and size of the downloaded multimedia binary contents, the creation date and time, and the downloaded date and time in a database provided in the memory 108 of the terminal. When the client accesses the multimedia server to download the multimedia binary contents, the binary information of the multimedia contents is stored in the database of the terminal (301).

When the user attempts to download new binary content in the server as described above, the binary information of the read file is decompressed by reading the binary information of the original content already stored in the terminal (301) (302). Then, the binary data of the file in the server is also decompressed to compare with each other (303), and if the two pieces of decompressed binary information are different from each other, the new binary content starts to be downloaded (304), and the two decompressed binaries are started. If the information is the same, let the user know that the binary content has been downloaded before.

The process of confirming whether or not to download is to check whether it is a binary content to be newly downloaded (305), and if the result (305) is a binary content that has already been deleted as a result of the message that the binary content that was once downloaded and then erased the terminal 150 Outputs 306 to the first or second display unit 116 or 118 of the control unit, and outputs a message to the display unit indicating that the binary content information is the same since the same binary content exists in the database unless the erased binary content exists. (307).

After outputting the display unit to the display unit 306 and 307, the binary content previously downloaded and the binary content to be newly downloaded are the same, and if the binary content is to be downloaded again (308), the binary content is downloaded. Proceeds to the download start step 304, and ends if the binary content is not to be downloaded.

Comparing binary information as described above is a more powerful method than comparing file information.

Meanwhile, even when the downloaded multimedia content is deleted, the database of the terminal is stored for a predetermined period of time or a certain number of contents information.

Thereafter, when the terminal user tries to receive content having the same name, or the same size or date, the terminal user confirms and starts the transmission.

Since the information of the deleted content cannot be stored indefinitely in the database of the terminal, it can be applied in the form of limiting the number of content information stored in the database or limiting the period.

And, unlike the download, the real-time streaming is played only once without the content is stored in the terminal, and at this time, by storing the information of the file received by the streaming in the database of the terminal, the same content can be transmitted later in real-time streaming When you have already received it, confirm with the user and proceed.

Even if the streaming file names are different, a comparison of the file size or the date and the like can be made to the user so as to prevent the waste of expensive multimedia transmission fees.

Of course, in addition to comparing the file information, you can also store some binary data and compare the binary data directly.

Since the information on the streaming content used by the user cannot be stored indefinitely in the database of the terminal, a limited number of methods can be stored, or a method of storing within a predetermined time with a time limit can be applied.

In the case of limiting the number of storages, it is determined how many pieces of information are to be stored recently. In case of storing only within a predetermined time, it is determined whether to store streaming information up to a predetermined period according to the situation of the terminal user.

As described in detail above, the present invention prevents retransmission of content that has been previously stored or downloaded when the user downloads content using a VOD or AOD in a mobile communication terminal having a multimedia function. It provides a useful effect that can prevent waste of content transmission fee.

Claims (6)

In the method for detecting duplicate content when downloading multimedia content in a mobile communication terminal, Generating a file or binary field of the multimedia content downloaded for the first time and storing the corresponding information; Comparing the information stored in the generated field with the file or binary information of the multimedia content to be newly downloaded and executing the download if the two information are different from each other, and confirming the download if the two information are the same by notifying the user of the fact. Multimedia duplicated content detection method characterized in that consisting of. The method according to claim 1, And storing the original name and size of the downloaded multimedia file or binary content, the creation date and time, and the downloaded date and time in the field of the multimedia content file. The method according to claim 1, The step of confirming whether or not to download the multimedia duplicated content detection method characterized in that whether the file or binary of the multimedia content to be newly downloaded already exists or erased files or binaries and outputs a confirmation result. The method according to claim 1, The number of content information stored in a field of the multimedia content file is limited to a certain number, and a predetermined period of time is limited, the multimedia duplicated content detection method characterized in that the stored. The method according to claim 1, The file received by streaming in the step of creating and storing the field is characterized in that the original name and size of the predetermined file or binary, the creation date and time, and the downloaded date and time information are stored in the database of the terminal. Multimedia duplicated content detection method. The method according to claim 1, And decompressing the binary information of the already downloaded content and the binary information of the newly downloaded content and comparing the binary information with each other.