KR100737118B1 - Selective download scheme in multimedia player - Google Patents

Abstract

The present invention relates to a selective file download method in a multimedia player, and determines whether a random file is selected by being connected through a file receiving means, and when a random file is selected and a selective download function is selected, a preset capacity of the selected file. If it is determined that the selected file is a file that can be played on the multimedia player, it downloads the remaining capacity of the selected file. If it is determined that the selected file is not a file that can be played on the multimedia player, a message that cannot be played is displayed. And the download information of the capacity is deleted. According to the present invention, when only a small portion of the file size is downloaded first at the time of initial download of the file, the system playback information is checked and the remaining capacity is downloaded only when it is found to be a playable file, thereby providing a more efficient download service. Can be.

Ethernet, USB

Description

Selective file download method in multimedia player {SELECTIVE DOWNLOAD SCHEME IN MULTIMEDIA PLAYER}

1 is a schematic structural block diagram of a multimedia player for performing a method according to the present invention;

2 is a flowchart of a selective file download process in a multimedia player according to a preferred embodiment of the present invention.

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

100: file receiving unit 102: control unit

104: storage medium 106: memory unit

108: display unit 10: key input unit

The present invention relates to a file download technology of a multimedia player, and more particularly, to a selective file download method in a multimedia player suitable for downloading only files playable in a system.

Recently, thanks to the rapid development of the Internet and information and communication technology, multimedia digitization which converts various audiovisual data of voice and video into digital is rapidly progressing throughout the society. Moreover, such multimedia digitization enables many people to enjoy various multimedia data through the development of band compression technology and the expansion of wired and wireless communication networks such as the Internet.

Recently, a so-called DVD (Digital Versatile Disc) has been introduced as an example of a storage medium in which audio / video content (hereinafter, A / V content) is recorded among these multimedia contents. The content is compressed and can be run from a computer equipped with a DVD player or DVD-ROM.

In addition, multimedia players with built-in hard disk drives (HDDs), for example, personal video recorders (PVRs) and portable multimedia players (PMPs), have recently been in the spotlight.

PVR is a personal recording / playback device that has a large capacity storage medium, that is, a hard disk driver, for storing recorded data (ie, broadcast program data), and has a function of playing data stored in such storage medium. Have

Here, the broadcast program data stored in the storage medium is encoded (compressed) and stored in the MPEG2 method in order to increase the utilization of the storage space. When the stored data is reproduced, the broadcast program data is decoded (restored) in the MPEG2 method and output. Therefore, PVR is suitable for recording a large amount of broadcast program data.

In addition, PMP is a portable multimedia player that is easy to play a variety of music formats and high-definition video, and is similar to the PVR in that it usually employs a hard disk drive (very few uses a flash memory), but is very small in size. It is easy to carry compared to PVR. A typical PMP has a hard disk with a capacity of about 20GB on a 3.5-inch LCD screen.

Since these PMPs and PVRs can be connected to the external Internet, various video files can be downloaded and watched directly through the Internet, or stored on a built-in hard disk for later viewing.

However, since a video file existing on the Internet employs a wide variety of encoding schemes, it is technically difficult to decode and play back the current PMP / PVR playback technology.

That is, in currently released products such as PMP and PVR, there are limitations on playback capability, playable file format, etc., depending on the DSP performance of the main processor IC of each product. In addition to -1 or MPEG-2, there are many other options including MPEG-4 (including MPEG-3), MPEG-7, Divix, Windows Media Audio / Video (WMA / WMV), Advanced Audio Coding (AAC) formats Compressed and continually upgraded file formats are coming out, so it's practically impossible to decode and play all files.

Nevertheless, in conventional multimedia players such as PMP and PVR, when selecting a file through an external connection means (e.g., an Ethernet connection environment or a USB port, etc.), no consideration is given to whether the file can be played by the system itself. Since performing the download, the problem may be raised that it is very unreasonable. In other words, as described above, in the case of a compressed file that the system cannot process, even if the download is successful, the file becomes an unnecessary file that cannot be reproduced. In this case, the general download service is a paid service. In time, financially and inevitably lose a lot.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, by downloading only a small portion of the file capacity at the time of initial download of the file, and then checking the system playable information to download the remaining capacity only when it is found to be a playable file. The purpose is to provide a selective file download method in a multimedia player that can provide a more efficient download service.

According to a preferred embodiment of the present invention for achieving the above object, as a file download method in a multimedia player, determining whether any file is selected by being connected through a file receiving means, and selectively download if any file is selected Determining whether a function is selected, downloading only a predetermined capacity of the selected file when the selective download function is selected, determining whether the selected file is a file playable in the multimedia player, If it is determined that the selected file is a playable file in the multimedia player, downloading the remaining capacity of the selected file subsequently; if it is determined that the selected file is not a playable file in the multimedia player, a message that cannot be played is read. It provides the step of play and, selectively, the file download method for a multimedia player, comprising delete the downloaded information of the predetermined capacity.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Prior to the description, the multimedia player applied to the present embodiment will be limited to a personal video recorder (PVR) for convenience of description, and these limitations are merely embodiments and do not characterize the present invention. For example, other multimedia players, such as a portable multimedia player (PMP), in which a hard disk drive is built-in and connected to the outside and can download files, may also be applied, which will become more apparent from the following claims.

1 is a schematic block diagram of a multimedia player for implementing a method according to the present invention, for example, a PVR, including a key input unit 10, a file receiving unit 100, a control unit 102, a storage medium 104, And a memory unit 106 and a display unit 108.

First, the key input unit 10 is a key input unit provided on the front panel or the remote controller of the PVR, and serves to transmit key code information corresponding to the user's button input action to the control unit 102.

The file receiving unit 100 is a means for receiving an arbitrary file through an external connection means, such as an Ethernet connection environment or a USB port, according to a user's selection, and provides the received file to the storage medium 104 through the control unit 102. It plays a role.

When the selective download is selected according to the present embodiment, the control unit 102 manages to selectively download only a part of the downloaded selected file, that is, a predetermined capacity of the selected file.

In addition, the control unit 102 determines the information of the file provided through the file receiving unit 100 and determines whether the file can be played in the PVR and performs a selective control operation. For example, if the file is a file that can be played on the PVR, the remaining capacity is downloaded continuously. If the file is a file that cannot be played on the PVR, a message that cannot be played is displayed, and then the download information is deleted. This will be described in more detail in the flowchart of FIG. 2.

In addition, the control unit 102 controls the display unit 108 to externally display an operation status message, a non-playback message, a user input message, etc. of the PVR, and provide various types of moving images provided through the file receiving unit 100. It controls to store the file in the storage medium (104).

The storage medium 104 is, for example, a hard disk driver (HDD), and is used as a means for storing a file downloaded through the file receiving unit 100 under the control of the control unit 102.

The memory unit 106 is, for example, a flash memory, in which reproducible information of the PVR is stored. Such playable information is used as a criterion for determining whether to selectively download as described later.

The display unit 108 serves to externally display an operation status message, a non-playback message, a user input message, etc. of the PVR through an external display window of the PVR under the control of the controller 102.

Hereinafter, the selective file download process in the PVR according to the preferred embodiment of the present invention will be described in detail with reference to the flowchart of FIG. 2.

First, in step S200, the controller 102 determines whether the file is received from the outside through the file receiving unit 100, for example, Ethernet, and when connected to the outside, the controller 102 proceeds to step S202 and displays the key input unit 10. ) To determine if an arbitrary file is selected.

If a random file is selected, the controller 102 proceeds to step S204 to determine whether the selective download function is selected.

If the selective download function is not selected, the control unit 102 proceeds to step S206 to perform a general download operation. However, if the selective download function is selected, the control unit 102 proceeds to step S208 to select the selected file. Only download a preset amount, for example 2-3 mega.

Thereafter, the control unit 102 proceeds to step S210 and step S212 to determine whether the selected file is a file that can be played in the PVR. Such determination may be implemented by checking the reproducible information previously stored in the memory unit 106 in the PVR.

If it is determined in step S212 that the selected file is a file that can be played back in the PVR, the controller 102 proceeds to step S214 to continue downloading the remaining capacity of the selected file.

However, if it is determined in step S212 that the selected file is a file that cannot be played back in the PVR, the controller 102 proceeds to step S216 to display a message that cannot be played, such as "file cannot be played in the player." Control to display through the display unit 108.

After that, the controller 102 proceeds to step S218 to delete the download information of the predetermined capacity and ends the present process.

As described above, when the file is downloaded through the multimedia player, the present invention can download only a part of the file in advance, diagnose whether the player can play the file, and complete the download only when the file is playable in the player. It is.

According to the present invention, when only a small portion of the file size is downloaded first at the time of initial download of the file, the system playback information is checked and the remaining capacity is downloaded only when it is found to be a playable file, thereby providing a more efficient download service. Can be.

As mentioned above, although this invention was demonstrated concretely based on the Example, this invention is not limited to such an Example, Of course, various deformation | transformation are possible for it within the technical idea and the scope of a claim mentioned later.

Claims (7)

As a file download method in a multimedia player, Determining whether an arbitrary file is selected by being connected through a file receiving means; Determining whether a selective download function is selected when a random file is selected, Downloading only a predetermined capacity of the selected file when the selective download function is selected; Determining whether the selected file is a file playable in the multimedia player; Subsequently downloading the remaining capacity of the selected file if it is determined that the selected file is a playable file in the multimedia player. Selective file download method in a multimedia player comprising a. The method of claim 1, The method, Displaying a non-playback message when it is determined that the selected file is not a playable file in the multimedia player; Deleting the download information of the preset capacity Selective file download method in the multimedia player further comprising. The method of claim 1, The determining of whether the selected file is a file that can be played in the multimedia player may be implemented by confirming playable information stored in the multimedia player. The method of claim 1, The file receiving means is a selective file download method in a multimedia player, characterized in that the Ethernet connection environment. The method of claim 1, The file receiving means is a selective file download method in a multimedia player, characterized in that the USB port. The method according to any one of claims 1 to 5, The method of claim 1, wherein the multimedia player is a PVR. The method according to any one of claims 1 to 5, The method of claim 1, wherein the multimedia player is a PMP.

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