KR19990069358A - Stand-alone music listening system using MP3 storage compact disc playback device - Google Patents

Abstract

The present invention relates to a standalone music listening system using a compact disc playback device of the MP3 storage method. The compact disc playback apparatus of the MP3 storage method used in the present invention can efficiently compress and store a lot of music data on a single compact disc, and the user can arbitrarily select and listen to it, as well as the playback apparatus because a compact disc changer is not required. It can reduce its size. The standalone music listening system according to the present invention using the compact disc playback apparatus of the MP3 storage system can not only independently order and listen to desired music for each meeting unit, but also has the advantage of effectively compressing and storing music data. .

Description

Standalone music listening system using MP3 storage compact disc player

The present invention relates to a standalone music listening system using a compact disc playback device of MP3 (hereinafter referred to as "MP3") storage method.

A typical compact disc does not use compression technology to record and store music data, so the amount of music data that can be recorded on one sheet is limited. This problem is inconvenient to carry several compact discs in order to freely select and listen to the desired music when the mobility is accompanied, such as a car audio system, a portable compact disc player.

In addition, in a system in which a user plays music selected by a user such as a juke box, as much music data should be stored as possible. In order to store a lot of music data by a conventional compact disc and a compact disc player, In addition to being necessary, a compact disc changer is required to exchange and play compact discs according to user selection. Therefore, there is an additional cost due to the compact disc changer and the size of the playback device cannot be reduced. In addition, since the conventional juke box system uses commercially available CDs in which a plurality of songs are recorded on one compact disc, it is unnecessary to include songs that are not actually selected by the user, thereby failing to implement an efficient system. The present invention is to use a compact disc player of the MP3 storage method to solve this problem.

Also, in general, a system for listening to music reproduced through a recording / storage medium such as a record or a compact disc in a public place is often targeted to a large number. Even if it is not a system for listening to music, in a place such as a restaurant or cafe where people gather and sit at each table, the music flows through the speakers and the seated people naturally listen to the music.

In such a case, everyone gathered in that place must listen to the same music that is being offered, regardless of their intentions. Even if each individual can order a song, they can't satisfy everyone at the same time because their tastes vary. The present invention is to provide a stand-alone music listening system using a compact disc player of the MP3 storage method that can effectively compress and store the music data in order to be able to listen to music ordered by the meeting unit.

The present invention is to solve the problems of the prior art as described above, an object of the present invention is to use the device that can play the music data selected from the compact disc, which stores the music data in the MP3 method to the desired music per meeting unit It is to provide a music listening system that can be ordered and listened independently.

1 is a block diagram of a compact disc reproducing apparatus of an MP3 storage system used in the present invention;

2 is a block diagram of a single device of a stand alone music listening system according to an embodiment of the present invention;

3 is a state diagram of use of the stand alone music listening system of the present invention.

Explanation of symbols on the main parts of the drawings

1: CD-ROM Drive 2: Input

3: display unit 4: MP3 decoder unit

5: output unit

10: playback device 11: power switch

12: selection switch 13: volume control switch

14: display unit 15: headphone connection

20: headphone 21: output

22: voice input unit 23: remote volume control switch

In order to achieve the above object, the stand-alone music listening system according to the present invention, a CD-ROM drive to which a compact disk in which music data is stored compressed in an MP3 method, an input unit for selecting the music data stored in the compact disk, A compact disc reproducing apparatus of an MP3 storage type including a display unit for showing a selection by an input unit, an MP3 decoder unit for reproducing the compressed and stored music data by the MP3 method selected by the input unit, and an output unit for outputting the reproduced music data It is characterized in that the unit can be installed in order to listen to the desired music independently for each meeting unit, including headphones connected to the installed compact disc playback device.

In the music listening system according to the present invention, the compact disc playback apparatus of the MP3 storage method has an index function for selecting stored music data, but it is desired by three selection buttons for determining 100 units, 10 units, and 1 unit. It is characterized in that the song can be specified.

The headphone may include a voice input unit and voice input and output between a plurality of headphones belonging to the same meeting unit.

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

Fig. 1 is a block diagram of a compact disc reproducing apparatus of the MP3 storage system used in the present invention.

As shown in Fig. 1, the compact disc reproducing apparatus of the MP3 storage method used in the present invention can be implemented using a general CD-ROM drive (1). However, the compact disc input to the CD-ROM drive 1 used in the compact disc reproducing apparatus according to the present invention compresses and stores music data in the MP3 storage method.

MP3 stands for 'Moving Picture Experts Group (MPEG) Layer-3', which uses the perceptual-sensing coding technology called 'Layer-3' to compress music data up to 1/12 while maintaining the sound quality of compact discs. to be. This MP3 compression technology allows you to compress and store at least 160 songs on a 650MB compact disc, based on four-minute songs.

The reproducing apparatus according to the present invention includes an input unit 2 having an index function for selecting music data desired by a user from among music data compressed and stored on a compact disc in the MP3 manner. The input unit 2 may be implemented in various ways, but recalling that about 160 songs are stored on the compact disc, an index function for designating a desired song with three selection buttons for defining 100 units, 10 units, and 1 unit is provided. It is desirable to implement.

The reproduction apparatus according to the present invention also includes a display section 3 for presenting the material for selection and presenting the contents of the selected music data.

In the apparatus according to the present invention, in order to reproduce the music data stored in the MP3 manner through the CD-ROM drive 1, the MP3 decoder unit 4 must be included. Conventional CD-ROM drives can acquire data from a compact disk only when the computer's central processing unit controls the CD-ROM drive. However, in the present invention, a system board including an MP3 decoder chip is mounted on a conventional CD-ROM drive. Therefore, the music data can be played back from a compact disc that stores the music data in an MP3 manner without a computer central processing unit.

The music data reproduced by the MP3 decoder unit 4 is output to the outside through an output unit 5 such as a speaker or a headphone connection unit.

As described above, according to the compact disc reproducing apparatus of the MP3 storage system according to the present invention including a CD-ROM drive, an input unit, a display unit, an MP3 decoder unit, and an output unit, a large amount of music data can be efficiently compressed and stored on a single compact disc. Can arbitrarily select and listen to it, as well as reduce the size of the playback device itself since no compact disc changer is required.

Hereinafter, a standalone music listening system using the compact disc playback apparatus of the MP3 storage method will be described.

2 is a diagram illustrating a standalone music listening system according to the present invention.

As shown in Fig. 2, the standalone music listening system according to the present invention comprises a playback apparatus 10 and a plurality of headphones according to the present invention as described above. The headphone 20 may be directly connected to the playback device 10 through the headphone connector 15 or may be connected via a separate wiring. That is, the connection between each headphone 20 and the playback device 10 is preferably through a headphone connection part which connects the output unit of the playback device and the table installed for each meeting unit. You can connect the headphones using the headphone connection that is closest to the headphone connection.

The playback apparatus 10 of the independent music listening system according to the present invention shown in FIG. 2 basically has a power switch 11, a selection switch 12 having an index function for music selection, and an output volume of the selected music. It may include a volume control switch 13 and a display unit 14 for displaying the selection state.

Each headphone performs a function of outputting music data selected and played by a user, and conventional headphone may be used as it is.

In addition, each headphone 20 is provided with a voice input unit 22 as well as a music / voice output unit 21 that performs the basic functions of the headphone, so that the input and output of voice between a plurality of headphones connected to the same juke box It may be implemented to enable. Incidentally, each headphone may further include a remote volume control switch 23 that can adjust the output volume of the music / audio output unit of each headphone for each headphone.

The operation of the standalone music listening system having the configuration as described above will be described. 3 is a state diagram of use of the standalone music listening system shown in FIG. In Fig. 3, it can be seen that each headphone is connected through a headphone connection part of a table which is pre-wired to connect the output part of the playback device in advance.

As shown in Fig. 3, the members of the first gathering unit select the desired music through the playback device of the first system and listen to the selected music using headphones connected to the playback device of the first system. It is also possible to additionally communicate with other members of the first meeting unit via the voice input of the respective headphones connected to the playback device of the first system.

Similarly, the members of the second gathering unit select the desired music through the playback device of the second system and listen to the selected music using headphones connected to the playback device of the second system. It is also possible to additionally communicate with other members of the second meeting unit via the voice input of the respective headphones connected to the playback device of the second system.

Therefore, the first meeting unit and the second meeting unit not only select and listen to separate music through the playback device of each system, but also with other members in the same meeting unit while noise from other meeting units is blocked. Conversation is possible.

Since the independent music listening system according to the present invention described above should be provided for each meeting unit, it is important to miniaturize to occupy a small space. However, in another aspect, the music listening system should store as many songs of various kinds as possible, and the above-mentioned miniaturization problem and this diversification problem are in conflict with each other.

The music listening system according to the present invention solves the miniaturization problem and the diversification problem by using the compact disc playback apparatus of the MP3 storage method.

As described above, the present invention provides a music listening system that can independently order and listen to desired music for each meeting unit by using a device capable of playing selected music data from a compact disc storing music data in an MP3 manner. to provide.

The compact disc reproducing apparatus of the MP3 storage method used in the present invention is capable of efficiently compressing and storing a lot of music data on one compact disc and allowing the user to select and listen to it arbitrarily, as well as the need for a compact disc changer. It can reduce its size.

In addition, the stand-alone music listening system according to the present invention can not only order and listen to desired music for each meeting unit, but also music or other gatherings by different gatherings among people who listen to the same music as members of the same gathering. The voices of the people who attended are able to communicate with each other while the voice is blocked, and also has the advantage of effectively compressing and storing music data.

The stand-alone music listening system according to the present invention can be applied not only to individual and group music listening systems of cafes and restaurants, but also to test listeners of record stores or juke boxes operated for a fee in public places.

Claims (3)

In the music listening system, A CD-ROM drive into which a compact disc having compressed music data is stored in an MP3 manner is input, an input unit for selecting music data stored in the compact disc, a display unit for showing selections by the input unit, and an MP3 method selected by the input unit. An MP3 storage unit including an MP3 decoder unit for reproducing compressed and stored music data and an output unit for outputting the reproduced music data for each meeting unit, and including headphones connected to the installed compact disc player. Stand-alone music listening system, characterized in that it allows you to independently order and listen to the desired music for each meeting unit. The compact disc reproducing apparatus of claim 1, wherein the MP3 storage system comprises: An independent music listening system having an index function for selecting stored music data, wherein three music buttons for selecting 100, 10, and 1 units can designate a desired song. The method of claim 1, wherein the headphones, Independent music listening system, characterized in that the voice input and output between the plurality of headphones belonging to the same meeting unit.