KR20070018200A - Method for reproducing audio using interface - Google Patents

Abstract

The present invention relates to an audio reproduction method using an interface, for example, a first audio device such as a portable MP3-Player, and a second audio device such as a disc-player. After connecting through a (USB) interface, the second audio device receives and stores a playlist PlayList of the first audio device, and stores audio songs corresponding to the stored playlist. After searching from a recording medium such as an optical disk or a hard disk in an audio device, the searched audio songs are sequentially selected and reproduced according to the playlist, for example, a user connects a portable MP3 player to a stationary disk player. When the portable audio player stores the high quality audio songs stored on the portable disc player, Since the MP3 player can be played in accordance with the playlist, it is a very useful invention that can easily play and listen to higher-quality audio songs when using the portable MP3 player.

Portable MP3 Player, Fixed Disk Player, Playlist, Audio Song Information, USB Interface, High Definition Audio

Description

Audio playback method using interface {Method for reproducing audio using interface}

1 illustrates an embodiment in which a stationary disc recorder and a portable MP3 player to which the present invention is applied are connected and connected through an interface.

2 is a flowchart illustrating an operation of an audio reproduction method using an interface according to the present invention;

3 illustrates audio song information of a playlist stored in a stationary disc recorder to which the present invention is applied, in a table form.

4 illustrates an embodiment of a process of selecting audio songs in a stationary disc recorder to which the present invention is applied.

5 illustrates another embodiment of a process of selecting audio songs in a stationary disc recorder to which the present invention is applied.

※ Explanation of code for main part of drawing

10: optical disc 11: optical pickup

12: disc playback system 13: A / V output unit

14: Hard Disk 15: HDR System

16: micom 17: memory

18: interface 20: storage

21: MP3 playback system 22: LCD

23: audio output unit 24: microcomputer

25: memory 100: stationary disc player

200: Portable MP3 Player

The present invention relates to a method of playing audio using an interface, for example, connecting a first audio device such as a portable MP3-Player and a second audio device such as a disc-player. The present invention relates to an audio reproducing method using an interface for connecting and reproducing high quality audio.

Recently, various types of digital audio devices have been widely used and commercialized. For example, in portable MP3-Player, MP3-Audio stored in storage such as flash memory, etc. It reads and plays back songs, providing near-CD audio quality.

On the other hand, in a disc-player such as a DVD-Player, a high-definition video and high-quality audio recorded on an optical disc such as a DVD is read out and reproduced, for example, an audio song. The sound quality of the audio read out and reproduced in the recorded DVD is read out and reproduced with higher quality than the MP3 audio tune reproduced in the portable MP3 player.

The mounted disc player may further include a recording medium such as a hard disk (HDD). For example, the hard disk may include a DVD having higher quality than the MP3-Audio song. Audio (DVD-Audio) songs or CD-Audio songs may be stored.

Accordingly, when the same audio song is stored in the portable MP3 player and the stationary disk player, the user wants to play and listen to the high quality DVD or CD audio song rather than the low quality MP3 audio song. .

However, since the portable MP3 player and the stationary disk player are not used in connection with each other, for example, the user may use the portable disc player in accordance with the order of playing the audio songs of the playlist PlayList preset in the portable MP3 player. There is a problem that can not listen to the high-quality audio songs stored in the player by sequentially selecting and playing.

Accordingly, the present invention has been created to solve the above problems, for example, a first audio device such as a portable MP3-Player, and a second audio such as a disc-player. Connect the device via a USB interface, or the like, and then, according to the order of playing the audio songs of the playlist (PlayList) preset in the first audio device, high-quality audio songs stored in the second audio device It is an object of the present invention to provide an audio reproduction method using an interface for allowing selective reproduction in sequence.

An audio reproduction method using an interface according to the present invention for achieving the above object comprises the steps of connecting and connecting a first audio device and a second audio device through an interface; In the second audio device, receiving and storing a playlist of the first audio device; Retrieving audio songs corresponding to the stored playlist from the second audio device; And four steps of sequentially reproducing the found audio songs according to the playlist.

In addition, when the audio song corresponding to the playlist is not stored in the recording medium in the second audio device, the audio song is downloaded from the first audio device or the audio song is downloaded through the Internet. Characterized in that it further comprises a step,

In addition, when any one audio song corresponding to the playlist is searched for, the sound quality of each audio song is compared, the audio song having the highest sound quality is selected, and the screening is sequentially performed according to the playlist. It is characterized by comprising.

Hereinafter, a preferred embodiment of an audio reproduction method using an interface according to the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates an embodiment in which a stationary disc recorder and a portable MP3 player to which the present invention is applied are connected and connected through an interface. For example, the stationary disc player 100 may include an optical disc 10 and an optical pickup. 11, disc playback system 12, A / V output unit 13, hard disk 14, HDR system 15, microcomputer 16, memory 17, and USB interface (18) ) May be configured to include.

In addition, the portable MP3 player 200 includes a storage 20, an MP3 playback system 21, an LCD 22, an audio output unit 23, a microcomputer 24, a memory 25, and a USB interface ( 26) may be configured to include,

On the other hand, the microcomputer 16 of the stationary disc player 100 performs an interface operation with the microcomputer 24 of the portable MP3 player 200 to receive a playlist (PlayList) preset in the portable MP3 player. And to store the audio songs corresponding to the playlist on the optical disc 10 or the hard disc 16.

The searched audio songs are sequentially selected and reproduced according to the playlist. For example, when the audio songs corresponding to the playlist do not exist on the optical disc and the hard disc, the stationary disc player 100 In the microcomputer 16), an interface operation is performed with the microcomputer 24 of the portable MP3 player 200 to download the corresponding audio song.

In addition, when the internet access module (not shown) is included in the stationary disc player 100, the corresponding audio song is downloaded through the Internet, and the same audio song is duplicated on the optical disc and the hard disc. When stored, the microcomputer 16 compares the sound quality of each audio song, and selects and reproduces a higher quality audio song, which will be described in detail as follows.

2 is a flowchart illustrating an audio reproduction method using an interface according to the present invention. For example, the portable MP3 player 200 and the stationary disc player 100 may be connected to the USB interface (USB). 18 and 26, the microcomputer 16 of the stationary disc player 100 is connected to the microcomputer 24 of the portable MP3 player 200 according to a user's key input. In operation S11, a playlist (PlayList) preset by the portable MP3 player is received and a series of playlist download operations stored in the memory 17 are performed (S11).

On the other hand, in the microcomputer 16 of the stationary disc player 100, with reference to the playlist downloaded as described above, audio songs corresponding to the playlist exist on the optical disk 10 or the hard disk 14. For example, as shown in FIG. 3, for example, as illustrated in FIG. 3, an audio song name (Song Name), a singer name, and a data length included in a playlist (PlayList) are recorded. If the corresponding audio song does not exist in the stationary disc player, the interface operation with the microcomputer 24 of the portable MP3 player 200 is performed to retrieve the audio song. It is downloaded from (S13).

In addition, when the stationary disc player is provided with an Internet communication module (not shown), the corresponding audio song may be downloaded through the Internet. In this case, a DVD audio song or a CD audio having a higher quality than the MP3 Audio song may be downloaded. The song will be downloaded.

On the other hand, in the case where the corresponding audio song exists in the optical disc or the hard disc, it is determined whether a plurality of any one audio song exists (S14). For example, a plurality of identical audio songs do not exist. In this case, the playback order of the corresponding audio songs is set according to the playlist.

For example, as shown in FIG. 4, the audio songs and playback order of the playlist are 'AAAAA', 'BBBBB', 'CCCCC', and 'AAAAA' and 'CCCCC' are stored in the optical disc 10. In the case where 'BBBBB' is stored in the hard disk 14, the microcomputer 16 selects 'AAAAA' of the optical disk, 'BBBBB' of the hard disk, and 'CCCCC' of the optical disk to sequentially play them. do.

On the other hand, when a plurality of identical audio songs exist on the optical disc 10 and the hard disc 14, for example, as shown in FIG. 5, 'AAAAA' and 'CCCCC' are stored in the optical disc 10. In the case where 'AAAAA' and 'BBBBB' are stored in the hard disk 14, the microcomputer 16 compares each audio quality of 'AAAAA' of the optical disk and 'AAAAA' of the hard disk ( S15), 'AAAAA' of the optical disc, which is the highest quality audio song, for example, a higher quality audio song having a longer data length, is selected (S16).

In addition, according to the playlist, 'AAAAA' of the optical disc, 'BBBBB' of the hard disc, and 'CCCCC' of the optical disc are selected and played sequentially (S17). According to the playlist set in advance, it is possible to listen to the high-quality audio songs read out and reproduced in the stationary disc player 100.

For reference, a method of searching for and selecting a high quality audio song corresponding to the playlist may include any of the audio songs, in addition to the method of comparing the audio song name, singer name, and data length as described above. Various information such as waveform information sampled in the interval, quantization bits, channel number information, or the like may be used.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The audio playback method using the interface according to the present invention made as described above includes, for example, a first audio device such as a portable MP3-Player and a second audio device such as a disc-player. Is connected through a USB interface, the second audio device receives and stores a playlist PlayList of the first audio device, and stores audio songs corresponding to the stored playlist. After searching from a recording medium such as an optical disk or a hard disk in a second audio device, the searched audio songs are sequentially selected and reproduced according to the playlist, so that, for example, a user can select a portable MP3 player and a stationary disk player. High quality audio songs stored in the stationary disc player when connected For, so it is able to play according to the play list of the portable BMP Three players will be very useful inventions that make it easy to listen to audio playback of high-quality music than when you use a portable BMP three players.

Claims (6)

A first step of connecting and connecting the first audio device and the second audio device through an interface; In the second audio device, receiving and storing a playlist of the first audio device; Retrieving audio songs corresponding to the stored playlist from the second audio device; And And reproducing the retrieved audio songs sequentially according to the playlist. The method of claim 1, The first audio device is a portable audio device, and the second audio device is a stationary audio device, and is connected and connected through a USB interface. The method of claim 1, In step 3, the audio reproducing method is searched for audio songs stored in a recording medium of the second audio device by referring to the audio song information included in the stored playlist. The method of claim 3, wherein And if the audio song corresponding to the playlist is not stored in the recording medium in the second audio device, downloading the audio song from the first audio device. Audio playback method using the interface. The method of claim 3, wherein And if the audio song corresponding to the playlist is not stored in the recording medium in the second audio device, downloading the audio song through the Internet. Audio playback method. The method of claim 1, If any one of the audio songs corresponding to the playlist is found in duplicate, comparing the sound quality of each audio song, selecting an audio song of the highest sound quality, and further sequentially selecting and playing the audio song according to the playlist. Audio playback method using the interface, characterized in that made.

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