SI21011A2 - Mp3 jukebox - Google Patents

Abstract

The MP 3 jukebox can be realised as an autonomous apparatus in the wall-mountable, desk or self-supportable version, but it can also be combined with a dart-apparatus, computer based cash register, video or computer games.Its operatin is based on the utilisation of one single standard PC or notebook as a controlling, monitoring and memory unit. A combination of especially developed and astandard software packages, makes starting, usage and servicing of the apparatus, easy to a maximum extent. Complete communication between the apparatus and user is carried out ba means of keys left, right, up and down (1-4) and a separate OK key (5) on the front board of the apparatus. Data concerning the type of music, the performers and the titles of te songs are sorted according to the hierarchical principle "type of music" - "performer" - "title of song". The data shown on the screen have visual appearance similar to two pages of a book, so that moving from one screen to another feels like paging an pen book, in order to enable easier and quicker, both the orientation and the selection among a large amount of data. Al variants of the apparatus can be adjusted for completely autonomous usage by blind or sight-impaired persons, which is accomplished by recording the performer's name and the song title during the preparation of music , and by announcing the name of each selected performer and the song title at moving through the menu.

Description

The invention relates to devices for the public reproduction of music. In relation to io conventional devices, the device according to the invention is improved:

- taking advantage of the most up-to-date standard components and / or hardware assemblies that are widely used in electronics and computing,

- using MP3 format for digital data compression,

- using MP3 format for data compression using a software encoder and decoder,

- by taking advantage of a specially developed program which enables all of the above components to function.

It is intended for use by persons without psychophysical impairments but 20 can also be adapted for blind or partially sighted persons.

2. TECHNICAL PROBLEM

The present invention solves the technical problem of:

-2a) harnessing the latest developments in modern technology by leveraging standard, widely available components and / or hardware assemblies that are widely used in electronics and computing,

b) with the support of a specially developed interface

c) with a combination of standard and proprietary software (softwar), produce a music device with wide usage, high quality and reliability with minimal production costs.

In addition, the problem of adapting the MP3 jukebox to form 10 can be solved for use by blind or partially sighted persons in such a way as to conform to the standard version.

3. BACKGROUND OF THE INVENTION

Descriptions of digital vending machines with boards operating on other bases other than 15 are known and for which patent protection is required.

4. DESCRIPTION OF THE INVENTION

An MP3 jukebox according to the invention is a device that plays music through a built-in audio amplifier and internal and / or external speakers.

It is intended for the selection and listening of music to one or more persons indoors or outdoors.

The device according to the invention can reproduce music from external sources, e.g. radios, cassette players, ..., with the choice of external sources or music stored on the device itself. When choosing an external source, it can be listened to for free or by activating a payment device. An authorized person has the option of entering the service module of the device and pressing the service button inside the device.

The device according to the invention is manufactured:

- as a standalone device in a wall, desktop or freestanding version,

- as a device in combination with darts in a wall-mounted or freestanding version,

- as a device in combination with a video game in a wall or standalone version,

- as a device in combination with other computer games in the wall or standalone version,

- as a device in combination with a cash register,

- as a device with appropriate modifications for the blind or partially sighted,

- as a device in combination with other publicity techniques.

4.1 HARDWARE

The principle of MP3 jukebox operation is based on the use of only one standard PC or notebook as a management, control and memory unit. In addition to the standard kits contained in any PC or notebook (power supply, motherboard, RAM, HDD, sound card, soundblaster,

-4 network card, CD-ROM, floppy disk) also requires a special interface panel developed by the authors of the present invention based on one or more microprocessors. This board serves as an interface between all external (input) signals and a PC or notebook and connects directly to the PC motherboard or connects to one of the serial inputs of the notebook. The interface processes external (input) signals coming from the keys and the payment device, while transmitting the output signals to the PC or notebook. Each time the device is switched on according to the invention, the PC or notebook programs the interface so that it can perform its function throughout the assembly.

We need a floppy disk because any minor program changes can be made from floppy disks. This makes it easy and inexpensive to make additions and changes to the program. We make major changes to the program from the CD. It is envisaged that any changes to the program can also be made by a non-professional authorized person, thanks to user friendly software support. This allows program updates and / or changes to be made to a diskette or CD-ROM by simply loading the diskette or CD into the corresponding unit, and then the entire program-update and / or program-changing process is performed completely automatically. The authorized person only has to shut down the device and remove the diskette or CD from the device.

A standard PC or industrial PC with CRT or LCD TFT display (6) or touch screen auxiliary screen (6) is mounted on the MP3 jukebox housing in the wall (picture 1), desktop, stand alone or in combination with darts (picture 2). . A complete notebook with an LCD TFT screen (6) can be installed instead of this combination. This combination is much more compact and easier to service, since in the event of a malfunction, only a few connectors are detached and a complete notebook is shipped for service. This can also be done by a less skilled person, thereby reducing the cost of labor in the field. The complete communication between the device and the user is carried out by means of the ◄, ►, ▲, ▼ (1-4) keys, which form an ergonomically shaped quadrilateral with vertices on the horizontal and / or vertical vertices, and OK buttons (5) on the front panel of the device. The A / ▼ (up / down) keys are used to scroll within one selected page (screen), and the ◄ / ► (back / forward) keys serve to scroll entire pages as you would through a book. The OK key (5) is used to confirm any selected option and start its execution, which makes it spatially distant from the other keys (1-4), thus virtually eliminating the possibility of unwanted or early activation of the selected option.

4.1.1. MAKING MUSIC

Tracks are converted from any standard sound medium using a special program to MP3 format, specific artist codes, song title and type of music are added (if necessary, other necessary information can be added) or similar song information already used can be used. present on the sound carrier.

-64.1.2. SAVE MUSIC

Music processed on an external PC or notebook, which is stored on them, serves for "charging" or storing a device according to the invention or at the time of production or during the exploitation of the devices themselves in two ways:

1. Directly from a PC or notebook by connecting them to the corresponding inputs (USB, PCMCIA) on the device itself or in parallel to the fixed HDD in the device itself. Music can be downloaded individually, pre-selected titles, or all at once.

io 2. Connect an “CD burner” to an external PC or notebook and “burn” CDs with approximately 180 titles each, depending on the capacity of today's CDs, which have 640-700 MB. In the future, this will depend on the progress of the technology of the CDs themselves (eg DVD system).

CDs made with MP3 music in this way are an inexpensive and effective means of exchanging and / or supplementing the contents of a device according to the invention, since they also allow the layman to supply the device in the field, thanks to the software developed by the teamwork of the authors of the present invention.

The device itself has a service button inside that is accessible only to an authorized person. Pressing it to enter service operation, where the following information appears on the screen:

1. RECORD THE AUDIO CD

2. DOWNLOAD MP3 CD,

3. NETWORK OPERATION,

4. DELETING SONGS,

5. LOAN COUNTER,

6. DEVICE STATISTICS.

With the keys (3 or 4), fig. 1 iii 2, select the desired mode of operation and confirm by pressing the OK button (5):

1. DOWNLOAD THE AUDIO CD

We insert a standard audio CD into the CD-ROM of the device, and then the “tracks” recorded on the CD appear on the io screen. You can choose to record all track (s) with the keys (1) and (3), and then they are automatically recorded by confirmation with the OK button (5). Alternatively, you can individually record individual track (s) labeled with (1) and (3). Confirmation with the OK key (5) transfers the unmarked track (s). It is also possible to select the other way around, ie to download the marked track (s).

After recording with the keyboard, enter the artist, song title and type of music. By pressing the key (1), fig. 1 or 2 leave audio CD burning mode. The program developed by the authors of the present invention then automatically lists the newly recorded music in alphabetical order of the performer and the type of music or according to other entered information.

Music can be divided into many types. The ranking can look like this:

- dance, disco, funky, house, techno,

- hip-hop, rap, rave,

- pop.rock,

- hard, heavy, new age, new wave, punk,

- afro, greece, italo, latin,

- reggae, ska,

- blues, gospel, jazz, R&B, soul,

- country, folk,

- soundtrack.

All of these types can exist in both domestic and foreign variants.

The initial distribution of music on the screen can be done in many ways, for example, domestic, foreign, top of the list, newcomers.

2. DOWNLOAD THE PRODUCED MP3 CD

We insert a CD with MP3 music in the CD-ROM, after which we press OK (5) and all the titles appear on the screen. It is possible to select automatic recording of all titles by pressing the OK button (5) or individual titles, by ticking the box to the left of the title to indicate which titles we do not want to record. Unmarked titles are automatically recorded by pressing the OK button (5). It is also possible to set the labeled tracks to be recorded, although the logical assumption is that there are probably more titles on the new MP3 CD to be recorded, thus shortening the labeling process.

In both cases, the device asks before executing whether we are sure and must confirm again with the OK key (5). This enables very fast and easy changing and updating of music titles on the device according to the invention, thus reducing costs.

3. NETWORK OPERATION

By selecting this option of the device according to the invention, we establish communication with each other without any external central computer system, after which the authorized person has the opportunity to switch and delete io music and all other digital records (eg video card of the establishment, picture of the artist, video clips, ...) between devices. It is sufficient to connect a regular keyboard to a built-in PC or to take advantage of a laptop keyboard, if fitted. The devices can be connected to a public communications network or an internal communications network (for example, when there are more than one in different premises of a large entertainment center). It is also possible to read the status of credit meters or statistics of individual devices. In this way, it is possible to assess the necessity of visiting individual sites, thus saving unnecessary travel.

4. DELETING SONGS

Selecting this option allows us to make room for recording new songs. The same image appears on the screen as in normal use of the device according to the invention, and then the desired block of music is selected in which to delete individual

-1010 tracks. The titles we want to delete are highlighted, after which the device requires a certificate to delete the highlighted song titles. Signing on the OK key (5) deletes the highlighted addresses. By pressing the key 1, fig. 1,2 and 3, the device arranges the remaining titles alphabetically by artist and type of music.

Then it starts playing music.

5. COUNTER

Meters built into the device of the invention may be hardware, software or combined.

io Show the generated traffic or financial parameters of the device utilization.

6. STATISTICS

It shows how many songs have been played over a period of time to facilitate the monitoring of guests' tastes and preferences and to delete titles that are rarely selected and played. Based on the statistics, a top-list is created and it is impossible to repeat the same song repeatedly. All statistics stored in the device's memory are accessible only to authorized persons. This information can be displayed on the screen, printed or sent to any MP3 device from the same manufacturer on the network.

-1111

4.1.3. OPERATION OF THE DEVICE

By pressing the service button again, the MP3 jukebox of the invention switches to "random mode" of operation, in which even without activating the payment device, it plays with reduced volume and selects titles according to the algorithm of random selection of title or melody. The special control unit determines the difference between the volume level in random mode (free quieter music) and the selected paid music. The Guest Guest now has the option of selecting the desired music type (6) with the keys (1-4) and again pressing the keys (1-4) selects the desired tunes, and then plays the selected title by activating the device for payment.

The payment device (7) can be activated before or after the selection of music, which greatly simplifies the handling of the device. This allows one tune to be paid at a nominal rate and several selected tunes at a more suitable rate, eg. 1 song 2kn (0.25 USD, 0.5 DEM), 3 songs 5 kn.

The screen may also include additional information on the price of each song, artist images, promotional messages, video business cards, spots and the like. All of these options are controlled by their own program and can be changed at the request of the customers of the device according to the invention. Payment devices are standard industrial products manufactured by several global manufacturers and can be activated with coins of all denominations and in any order (to identify your own concerns), tokens, paper money or cards (magnetic or chip). The type of payment device is selected as desired by the buyer of the MP3 jukebox.

-1212

The signals from them are processed in a special "interface board", which is the result of the inventors' own development, and the main advantage is that it is directly plugged into the motherboard of the PC or connected to one of the serial inputs of the notebook and wired directly on her. With this we gain on reliability of operation. The selection of melodies is made by pressing one of the keys 1-4, and then the full screen for the selected type of music opens.

Information about the type of music, artists and song titles is compiled according to the hierarchical principle "type of music" - "artist" - "song title". All the data displayed on the screen can visually look like two pages of an io book so that going from one screen to another looks like scrolling through an open book. This way of displaying data makes it easy and quick to view large amounts of data and make it easier and faster to make choices.

Another possible variant of displaying data on the screen is that they visually look like they are arranged in rows on one side of any length and can be scrolled row by row or screen up or down.

The user in the selected screen now selects the artist and / or just the melody and press OK to start playback. To prevent guest torture by repeating the same tune, the inventors program supports the ban on re-selecting the same tune as follows.

It is possible to specify any number n (n = 1,2, ...) of various other tunes that must be performed before the same tune can be selected again.

-1313

4.2. SOFTWARE (SOFTWARE)

The composition of the MP3 jukebox takes advantage of, as stated earlier, the MP3 format of audio compression. This format requires a high capacity processor. It is based on extremely high compression (compression) compared to the original at the same time a high level of quality compared to the original audio recording. The MP3 jukebox offers the ability to directly convert the original CD or any other medium with stored audio to MP3 format. In doing so, we take advantage of pre-existing programming routines (called MP3 encoders) that are included in our own io program. As a result, the process is fully automated and requires nothing more than inserting a CD into the unit, starting the encoding program, and finally entering the artist name and song title. Then the composer automatically inserts the encoded songs into the corresponding folders, which are marked with the artist's title or type of music.

MP3 decoding is performed at the moment the song is playing. The programming routine begins with the decoding and sound execution of the song at virtually the moment of selection, sending the decoded signal towards the sound card, which converts the decoded digital record to analog. Assemblies for the coordination and management of external components utilize a specially developed piece of hardware. Specifically, an ISA or PCI card with an input-output controller (processor) that connects external components (keys, chip insertion, sound management, and the like) to routines within the program itself. After starting the assembly, the program initializes the controller with the layout

-1414 processors to specific states (some for reading input components, eg keys, others to output states, eg managing a chip insertion part). When such a controller receives a signal from an external component at some point, it informs the program that the information has arrived and is ready to "hand over" it to the program. Also, if the program requires a control signal against one of the external components, the controller sends the program data to be transmitted against the specific component. The whole program part is wrapped up in several parts:

1. An executive part, where by simple selection by moving io the arrows with the keys (1-4) select and the confirm key (5) perform the selected song.

2. The following parameters are displayed at the bottom of the screen:

a) currently playing ... (song title),

b) to play selected songs x,

c) number of songs paid (credit paid) y,

3. The barcode display at the bottom of the screen visually shows and monitors the song's playing time; at this stage of operation of the device, the controller operation is maximized because it is checked that one of the keys is pressed, that the payment device is activated (someone inserts coins), the entire run of the song is monitored and that there is something else paid in the playlist songs to perform. In the absence of these, the composition automatically switches to "random mode", that is, selecting a song according to random selection criteria and sending the order to the controller to reduce

-1515 volume level to the level preset with a special control unit.

4. The erasure assembly has the same appearance as it was performed, with the simple selection of keys (1-5) deleting individual songs and artists. The status area of the screen shows blank disk space in minutes

5. The system for the automatic recording of manufactured MP3 CDs is automated to the point that after the insertion of the CD into the unit all the songs stored on the CD are automatically recorded. If one of the songs is already on the disc, the song is automatically downloaded with a new version when reading the CD, which is advantageous if the songs originally entered are errors because they are automatically corrected by deleting the old one. and recording a new version. Of course, there is also the possibility of individual song entry here.

6. The compilation of statistics tracks all songs performed over a period of time and creates, to your liking, the top lists of the most listened performances available on the screen. There is also the possibility of automatically deleting songs that are not played over a period of time. This option can be adjusted based on the monitoring timeframe and the minimum number of runs.

Part of a self-developed program has a special task, and it is to remember the paid credits and selected songs, which in case of interruption

-1616 powered by electricity, virtually avoiding possible misunderstandings between the owner and users of the device.

5. DESCRIPTION FIG. 1 shows a wall embodiment of an MP3 jukebox;

Fig. 2 shows an MP3 jukebox combined with a standalone dart.

6. MP3 JUBOX FOR THE BLIND AND VISUAL PERSONS io In this implementation, all the functions of the 1-4 and OK (5) keys are accompanied by appropriate voice information. Voice information allows the blind or partially sighted person to handle the device completely on their own. When a blind or partially sighted person with the keys 1-4 has selected the desired screen, he or she will use 3 (down) or 4 (up) keys to scroll through the song titles and artist names.

The name of each selected artist and the title of the song are pronounced. This is achieved by recording the artist's name and song title when making the music. In this way, the MP3 listening device of the invention can be made multilingual.

The described audio-visual combination of the artist name and song title can be used on all the variants of the MP3 jukebox variants described according to the invention.

-1717

7. DEVICE OPERATION OPTIONS

Various variants of MP3 jukeboxes according to the invention are possible. In some of them, the device may be combined:

a) with darts in wall or freestanding version. In this case, a built-in PC or notebook manages all of the two devices. Depending on the performance of the computer and the software, a variant can be implemented that allows both devices to be used simultaneously. In this case, the MP3 jukebox plays music, with players playing darts unobstructed.

b) by video game in wall or standalone version. Even in this case, one computer manages the work of both devices, but it is also possible to implement a variant that allows both to be used at the same time. In this case, the MP3 jukebox plays music while the player (s) unobstructedly enjoys the video game.

c) with other computer games in wall or standalone version. Even in this case, one computer manages the work of both devices, but it is also possible to implement a variant that allows both to be used simultaneously. In this case, the MP3 jukebox plays music while the player (s) unobstructedly enjoys a computer game.

d) with a computer cash register. Even in this case, one computer manages the work of both devices, but it is also possible to implement a variant that allows both to be used at the same time. In this case MP3

-1818 jukebox plays music, while customers enjoy shopping and employees enjoy a comfortable soundstage.

It is also possible to make combinations of MP3 jukeboxes and the mentioned devices 5 in the case of using a PC or notebook with lower performance with the appropriate custom program. In this case, it is not possible to use both devices at the same time, but the MP3 jukebox is activated during breaks between the part of the other device with which it is combined.

It will be apparent to those skilled in the art that 10 modifications to the apparatus described may also be made, which does not affect the protection.

For:

Grabar Ivan

-1919

Claims (29)

PATENT APPLICATIONS 1. MP3 jukebox, characterized in that 5 that the operation of the entire device is based on one built-in standard PC, notebook or industrial PC. 2. An MP3 jukebox according to claim 1, characterized in that the interface: a) is based on one or more microprocessors and operates on the basis of a program programmed by a PC or notebook each time it is turned on: b) represents the connection to all external (input) signals from the keys and 15 payment devices and a PC or notebook; c) represents a board that plugs directly into the motherboard of the PC or plugs into one of the serial ports of the notebook. MP3 jukebox according to claims 1 and 2, 20, characterized in that: a) allows the original CD or any other medium with stored audio to be converted directly to MP3 format, -2020 utilizing already known programming routines (so-called MP3 encoders) included in your own program, b) the process is fully automated and requires nothing more than the owner inserting the CD into the drive, starting the conversion program and 5 dice the name of the artist and the title of the song, and then the entire composition automatically puts the encoded songs into specific folders, labeled with the artist name or type of music. MP3 jukebox according to claims 1 to 3, io characterized in that the music is processed and stored in MP3 format on an external PC or notebook intended for charging or storing in the memory of the device during the production or use of the device by being directly transmitted from the PC or a notebook by connecting to the corresponding inputs on the device itself or 15 in parallel on the fixed HDD device itself; music can be downloaded individually, pre-selected titles, or all at once. An MP3 jukebox according to claims 1 to 4, characterized in that 20 that the music is processed and stored in MP3 format on an external PC or notebook intended to be charged or stored in the memory of the device when producing or using the device, such that on an external PC or -2121 Notebook connects a "CD burner" and "burns" a CD whose contents are directly transferred to its memory after insertion into the device. 6. MP3 jukeboxes according to claims 1 to 5, connected to a public 5 communication network or an internal communication network, characterized in that by selecting the option "network operation" the devices establish communication with no external central computer system and the authorized person has the possibility of downloading io and delete music and any other digital recordings on any of the networked devices. MP3 jukebox according to claims 1 to 6, characterized in that 15 that all communication between the device and the user is carried out by means of: a) the ◄, ►, ▲, ▼ (1 -4) keys which create an ergonomically shaped quadrilateral with vertices on the horizontal or vertices on the front of the device, 20 b) the OK keys (5) away from the buttons (1 - 4) on the front panel of the machine. 8. An MP3 jukebox according to claim 7, characterized in that -2222 that the A / ▼ (up / down) keys are used to move within one selected page (screen), the (back / forward) keys serve to scroll the entire page, as in a book. 5 An MP3 jukebox according to claim 7, characterized in that the OK key (5) is intended to confirm any selected option and to execute its execution, making it spatially distant from the other keys (1-4), thereby virtually eliminating the possibility of unwanted or and to activate the selected option too quickly. An MP3 jukebox according to claims 1 to 9, characterized in that the data on the type of music, the performers and the song titles are folded according to the 15 hierarchical principle: the type of music - the winner - the lubricant of the song. MP3 jukebox according to claims 1 to 9, characterized in that the data on the type of music, performers and song titles are folded according to the 20 hierarchical principle: artist - * title of the song. 12. MP3 jukebox according to claims 10 and 11, characterized in that -2323 make the data displayed on the screen look visually like two pages of a book, so that switching from one screen to another looks like scrolling through an open book, for easier and faster orientation in a large amount of data and easier and faster selection. 13. An MP3 jukebox according to claims 10 and 11, characterized in that the data shown on the screen looks visually stacked on one side of any length and can be scrolled line by line or io screen by screen upwards or downwards. MP3 jukebox according to claims 10 to 13, characterized in that the music content can be displayed on the screen within the selected type of music 15 according to the following criteria: a) in the alphabetical order of the contractor's name, b) in the alphabetical order of the title of the melody, c) in the alphabetical order of newly entered songs or artists, d) by song and / or artist toplist based on the number of performances in 20 over a period of time. 15. MP3 jukebox according to claims 1 to 14, characterized in that -2424 a) The following parameters are displayed at the bottom of the screen: a) currently playing ... (song title), b) to play selected songs "X", c) number of songs paid (credit paid) "Y" d) free disk space display in minutes (appears c) in service mode only). 16. An MP3 jukebox according to claims 1 to 15, characterized in that the bar code display at the bottom of the screen visually displays and monitors the timing of the song. An MP3 jukebox according to claims 1 to 16, characterized in that 15 that the program supports the prohibition of re-selecting the same tune in such a way that it is possible to determine any number n (n = 1,2, ...) of different other songs that must be performed before the same tune can be selected. 18. An MP3 jukebox according to claims 1 to 17, characterized in that the program allows the automatic deletion of songs that are not played over a period of time; this option is adjustable based on the monitoring period and the minimum number of runs. -2525 19. ub3 jukebox according to claims 1 to 18, characterized in that the invented program of the inventor makes it possible to operate in "random mode", that is, according to the algorithm of randomly selecting a title or melody when playing with 5 volume down; that by activating the payment device, the device according to the invention automatically switches from the aforementioned "mode" and switches to playing the selected volume at a higher volume. 20. MP3 jukebox according to claim 19, io characterized in that the special control unit determines the difference between the volume level in "random mode" (unpaid silent music) and the selected paid music. 21. MP3 jukebox according to the preceding claims, 15, characterized in that one tune is payable at a nominal rate, several selected tunes at a more appropriate tariff, which can be changed according to customer or user requirements. 22. An MP3 jukebox according to the preceding claims, characterized in that all variants of the device can be adapted for completely independent use of blind or partially sighted persons, which is achieved by: -2626 a) recording the names of the performers and the titles of the song when making the music, b) Saying the name of each selected artist and the title of the song when scrolling through the selected screen. 5 23. An MP3 jukebox according to the preceding claims, characterized in that it can be combined with darts in a wall-mounted or stand-alone version, with the integrated PC or notebook controlling the entire portion of both devices; depending on the performance of the computer and the program, it is also possible to use both devices at the same time, or the MP3 jukebox can be activated during the downtime. 24. An MP3 jukebox according to the preceding claims, characterized in that 15 that it can be combined with video games in a wall-mounted or stand-alone version, with the integrated PC or notebook controlling the entire portion of both devices; Depending on the capabilities of the computer and the program, it is possible to use both devices simultaneously or the MP3 jukebox can be activated in a break in which the video game is not active. 25. An MP3 jukebox according to the preceding claims, characterized in that it can be combined with other computer games in the wall or standalone version, wherein the built-in PC or notebook controls the -2727 all parts of both devices; depending on the capacity of the computer and the program, it is possible to use both devices simultaneously or the MP3 jukebox is activated in a break in which the computer game is not active. 5 26. An MP3 jukebox as claimed in the preceding claims, characterized in that it can be combined with a cash register, wherein the integrated PC or notebook controls the entire portion of both devices; depending on the performance of the computer and the program, it is possible to use both io devices simultaneously, or the MP3 jukebox can be activated during the break of a computer desk. An MP3 jukebox according to the preceding claims, characterized in that a part of its own program has the specific task of remembering 15 paid credits and selected songs in case of interruption of electricity supply, thus practically eliminating possible misunderstandings between the owner and the user of the device. 28. MP3 jukebox according to the preceding claims, 20, characterized in that music from external sources can also be played, e.g. a radio, cassette player, ... with the choice of external sources or music stored on the device itself; in case of selection of external origin -2828 it is possible to listen to music for free or by activating a payment device; the authorized person can enter the service mode by entering the service mode of the device by pressing the service button inside the device. 29. MP3 jukebox according to the preceding claims, characterized in that any changes to the program can also be made by an authorized non-expert due to "user friendly" software support, which allows program updates and / or changes to be made by simply inserting a diskette or CD into the corresponding "drive". , after which the entire process of updating and / or modifying the program is fully automatic.