JP2006199255A - Wireless music reproducer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless music reproducer favorable to solve problems in comparison with other music reproducers in system constitution, displaying music information, music regenerating method, a music data memory method, an operating function, etc., easy to use and convenient. <P>SOLUTION: A letter display means capable of displaying music information contents is used for display constitution of music information as a system constitutional element of the wireless music reproducer, and a memory changer method, a built-in electric power source corresponding to multiple use, a supply method from an automobile cigarette lighter, a means to separate a music data transmitting part and a music regeneration part from each other, etc. are used for regenerating selection of a music source. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wireless music playback apparatus capable of playing music by receiving power from a cigarette lighter socket or a battery installed in an automobile, and the playback music is radio communication means, ie, car radio or reception playback by wireless. The present invention relates to a music reproducing apparatus that can transmit music data to an apparatus having means and easily reproduce and enjoy music.

  In recent years, with the advancement of digital technology, recording and playback of music has become easier with the advancement of digital technology, and products have been developed by many innovative technologies such as miniaturization, weight reduction, power saving, etc. Diversified regardless of format.

  Many innovative technologies have been developed to realize these music devices. The development of software technology has progressed, especially in semiconductor technology, and the direction has rapidly advanced from the era of analog technology to digital technology, and music has been included. With the advancement of audio compression technology, it has become possible to compress a large amount of music data for recording or transmission to a remote location.

  With such background technology, the application development of music playback devices that can be used in automobiles, trains, buses, airplanes, ships, homes, walks, etc. has further progressed, and the types of products have expanded and many people have various forms. The high-quality music can be enjoyed with this music player.

  The wireless music playback apparatus of the present invention is one of the diversified music playback apparatuses, and can easily enjoy music using a broadcast receiver in places such as automobiles, homes, and offices. It is.

In conventional automobiles, music playback devices such as car radios, cassette tapes, CDs, MD changers and the like have been installed individually or in combination.
In recent decades, the spread of portable portable music playback devices such as CDs and MD players has increased, and there have been many opportunities to bring portable music playback devices to cars and enjoy music.

Against this background, devices that can easily listen to music by transmitting music to a car radio or the like by a wireless method have been developed.
With these background technologies, devices for listening to music have been developed regardless of shape and method, and their forms have diversified, and it has become an era where music can be heard anywhere.
However, while such music playback devices have advanced and diversified, there are still many fields where development is still delayed technically.

  In particular, wireless music playback devices can easily listen to music, but development issues remain in terms of function, operability, expandability, system configuration of the device, and the like compared to other music playback devices.

  FIG. 2 shows an example of a conventional wireless music playback apparatus. FIG. 1 shows a general method of creating a music source necessary for listening to music with these wireless music playback apparatuses.

  In order to listen to music with the wireless player 8 shown in FIG. 2, digital music data is recorded in the memory 4 by the personal computer 1 shown in FIG. 1 and set along the memory setting direction 5 shown in FIG. Sent to part 9.

The music playback unit 9 converts the digital music data input from the memory 4 into analog music data.
The music signal converted into the analog music data is modulated as the music data transmission radio wave 21 by the wireless transmission unit 10 and transmitted to the broadcast receiver 22.

  The transmitted music data transmission radio wave 21 is received by the antenna 20, demodulated by the broadcast receiver 22, and the music is output from the speaker 27 so that the music can be heard.

The broadcast receiver 22 is provided with a reception display 23 capable of displaying a broadcast reception frequency, and is provided with a frequency selection knob 24 that can be adjusted to the transmission frequency sent from the wireless player 8 to achieve tuning. It is the structure which can receive music by the thing.
The music received by such a process can be heard by the broadcast receiver 22.

FIG. 1 shows a method for creating a digital music source.
Generally, the music source (1) 6 can use the recorded music using a recorded CD, MD or Internet distribution as the music source (2) 7.

  These music sources are once taken into the personal computer 1 and stored in a hard disk or the like as a recording device, and are written in the memory 4 using dedicated recording software.

  The method for writing to the memory 4 is that the music specified by operating the keyboard 3 based on the procedure of the recording software displayed on the screen 2 of the personal computer 1 is automatically transferred to the memory 4 and recorded as digital music data. Is done.

  By such a method, music data is recorded in the memory 4 and a digital music source for reproduction by the wireless player 8 can be created.

Further, a power source for operating the wireless player 8 is supplied with power using a cigarette lighter socket 15 installed in the automobile.
The power supply is performed by setting the plug portion 11 of the wireless player 8 along the plug insertion direction 14 so that the minus-electrode 12 and the plus + electrode 13 come into contact with the socket-electrode 17 and the socket + electrode 16 of the cigar light socket 15, respectively. Power can be supplied by a power source + cord 18 and a power source-cord 19 connected to the vehicle battery.

  With the configuration described above, music can be reproduced by receiving power from the cigar light socket 15 of the automobile.

  However, the conventional wireless music playback device has a function for easily playing music in this way, but there is no information display function for the music title, music order, music selection, music playback level, etc. The memory 4 to be set has a singular configuration, and a plurality of memories 4 are configured so that it is impossible to listen to a lot of music.

  The music reproduction information is an important element for the user, and a function that allows a user to select and control music freely, perform music settings, etc. and easily listen to a lot of music is important.

  In addition, there are a plurality of predetermined methods for digital music data to be recorded in the memory 4, and the user can arbitrarily select and record in the memory 4. However, the conventional wireless player 8 generally has a configuration that can only reproduce by one limited music compression method.

  Furthermore, the input of music data is composed of one input terminal, and it has a configuration in which music data in a recording format such as analog recording or digital recording cannot be reproduced.

  In addition, the music player using the wireless player 8 having such a configuration has a configuration in which the power is turned off by removing the engine key of the automobile and the reproduced music data returns to the initial state so that the music cannot be heard continuously. Furthermore, since there is no music information display, it becomes difficult to select the music.

  Although it is possible to record and play back music of a plurality of music compression methods in the memory 4, the wireless music playback device may stop operating when playing back digital music data. In this case, the wireless player 8 is connected from the cigarette lighter socket. It often happened that it was removed and returned to its initial state.

  The conventional wireless music playback apparatus having a configuration in which power is supplied from a cigarette lighter socket installed in an automobile can easily transmit music data to the broadcast receiver 22 and perform music playback. Challenges remain.

  In addition, there are many demands for an application device having a similar configuration using the memory 4 and a simple and lower-cost wireless music playback device.

  The wireless music player configured to receive power from the cigarette lighter socket installed in the car has the music information function and control function, which are the problems of the conventional music player, and the configuration of the extended system using the memory 4 The present invention provides a wireless music playback device and an application system device by solving a problem using a cigarette lighter socket by solving a problem of a conventional wireless music playback device.

The present invention has the following technical means for solving the above problems.

  In order to solve the conventional problems, the wireless music playback apparatus of the present invention solves the system configuration by using new process means, and further solves the problem by using the optimum technical means for the scalable system configuration and application system. Is.

  The wireless music playback apparatus according to the method of the present invention has the above-described music information function, display means of the music title and order, music level, etc., selection of each function, music control, and disappearance of music data by turning off with the car engine key. A wireless music playback apparatus including a music re-reset method, a frequency set of a radio wave transmitted to a broadcast receiver, and a system configuration which has not been conventionally configured is solved by using the following means.

  The wireless music player (1) 28, which is a wireless music player, is provided with a main display (1) 33 which is a means for disclosing the music information function. This display displays kanji, numbers, romaji, katakana, hiragana, etc. It has a means that can be configured.

By using these means, a lot of music information can be displayed, and the music data is automatically detected and displayed at the time of reproduction based on the music information.
Further, the music song number display uses means for counting the playback order of music recorded in the music data, displaying the song number, and simultaneously storing the count data in the music data memory unit 103.

  As a means of recording the song name in the music data, when the music data is recorded in the memory 4 in the personal computer 1 shown in FIG. 1, the song name is entered into the respective music source list by the keyboard 3 in kanji, romaji, numbers, katakana. It is possible to use means for creating music data.

Furthermore, there are music sources in which music title data is recorded, and it is possible to use these data.
The wireless music playback apparatus has a configuration for displaying the information on the display (1) 33 based on the playback music data.

  The display (1) 33 is provided with character conversion software corresponding to these characters, and automatically reads the character data from the music data and displays the display of the title of the music on the display (1) 33.

Also, the music order display counts the playback order from the music data of the playback music during the music data playback process, displays the number on the display (1) 33, and simultaneously stores the data in the music recording unit 103.
The means for displaying both the progress and the back of the music makes it possible to display the order of the progress direction and the order of the back as a number or a song name in synchronization with the music data stored in the music data memory unit 103.

  Recently, music distribution using a communication line has become possible, and some music data has a song title attached to the music data. These displays are similarly displayed by the character conversion software on the wireless music player side (1). It is possible to display the music title on 33.

  In addition, the frequency display of the radio wave transmitted from the wireless player (1) 28 to the broadcast receiver 22 is performed by replacing the frequency setting data provided in the wireless transmission unit with a frequency numerical value to the display (1) 33 or the display 34. The channel can be displayed.

  Furthermore, it is also possible to use a method in which the display (2) 34 is provided with displays of the frequency display order 1, 2, 3, 4, etc. and is lit to display the contents of the frequencies.

  The input music source uses means for solving the problem by providing a plurality of input terminals for each function compared to the conventional configuration in which only one music compression method is input.

  The input music data includes digital data and analog data. These input terminals are separated and provided for each data type, and the music data can be reproduced by processing them separately. And can be transmitted to the broadcast receiver 22 as a music transmission radio wave.

A plurality of music compression data formats can be selected and recorded in music data recorded in the memory 4 by the personal computer 1.
Such a plurality of music compression data is automatically recognized by a compatible software identification device built in the wireless music player 28, and a plurality of digital music data can be recognized and reproduced by corresponding software.

Further, the music information identified by the compatible software is displayed on the display (1) 33, and the music information can be obtained.
In addition, when an abnormality occurs in the system due to incompatibility of music playback processing by the memory 4 and encoding software for recording music in the memory 4, a means having a function of instantaneously restoring the system by the reset / power switch 98 is used. We are trying to solve it.

  When the engine key is turned off, the power supply connected to the cigarette lighter socket 15 may be turned on, so that the wireless music player (1) 28 is always in operation and consumes battery power for long-term parking. It happens to accelerate. To solve this problem, a reset / power switch 98 is provided and turned off arbitrarily.

The conventional wireless player is composed of a single memory 4 and the number of music playback songs is limited. However, a slot having a plurality of memories 4 is formed, and a plurality of channel means of the memory 4 are used. You can listen to more music.
By using such various means, a more functional system configuration can be realized, and an easy-to-use wireless music playback apparatus can be configured and provided.

  The present invention has the following features and effects.

  The wireless music playback device of the present invention can receive power from a cigarette lighter socket installed in the automobile and operate the system without requiring wiring work. Further, the music source can be obtained from a device such as a commercially available personal computer. To provide a new music playback device that can easily record music data in the memory 4 and that can be easily listened to in a car by setting the memory 4 in the wireless music playback device of the present invention. Can do.

Conventionally, music has been listened to by means of car radio broadcast reception, cassette deck using music tape, changer using CD, and the like.
The wireless music playback apparatus of the present invention does not require these cassette decks, CDs, MD changers and the like, and has a feature that music can be easily played back and listened to using car car radio. It is possible to provide an unprecedented music apparatus that can listen to sound using a broadcast receiver (radio or the like).

  One example of the best mode for carrying out the wireless music playback apparatus of the present invention is shown in FIGS. 3 to 4, and one example of the related embodiment is shown in FIGS. 5 to 12, and the configuration of each is based on each figure. explain.

  FIG. 3 shows a configuration of the wireless music player (1) 28 of the present invention, and FIG. 4 shows an operation flowchart thereof.

  FIG. 5 shows a cradle configuration having a power connection function that allows the music transmission data to be received by a general broadcast receiver using a wireless music player (1) 28 in a place other than an automobile and listen to music. is there.

  FIG. 6 shows a configuration in which a wireless transmission unit is configured by optimizing each function by separating a wireless transmission unit that transmits music data from the wireless music player (1) 28 and a music reproduction function unit. The player unit shows a configuration diagram of a music player (b) 49 having a memory changer function having a memory slot terminal capable of connecting a plurality of memories 4 and a music player (a) 42 to which a single memory 4 can be connected.

  7 shows a configuration of the music player (b) 49 shown in FIG. 6 in which a power source is installed inside and a headphone 57 can be used to listen to music in a portable manner, and a communication cable (1) 41 is connected to the wireless transmission unit 53. A configuration of a music player (c) 54 having a configuration that can be used in two ways by connecting to listen to music even in a car is shown.

  FIG. 8 shows a music player (d) 60 and a music player (e) 62. Each music player is provided with a power supply function and a wireless transmission unit 10, and can directly transmit music data transmission radio waves to the broadcast receiver 22. It is what has.

  FIG. 9 shows a configuration in which the wireless transmission unit 10 is provided inside the music player (C) 54 shown in FIG. 7 and the music data transmission radio wave 21 can be sent directly to the broadcast receiver 22, a headphone 57 and a plurality of memories. 4 has a memory slot terminal 52 that can be set to 4 and has an internal power supply function and a structure that can also obtain power supply from the outside. Mobile phones use headphones, cars, and homes use broadcast receivers to listen to music. It shows the configuration that can do things.

  FIG. 10 shows a system configuration having a memory function capable of storing music data in the wireless music player (2) 88, and FIG. 11 shows an example of the lock configuration.

  FIG. 12 shows an example of a configuration in which music data can be input by providing the input terminal 4 and directly connecting the personal computer 1 based on the configuration of the wireless music player (2) 88 shown in FIG. .

  As described above, by solving the problems in the conventional wireless player shown in FIG. 2, the configuration shown in FIGS. 3 to 12 can be realized.

FIG. 3 shows the configuration of the wireless music player (1) 28 according to the first embodiment of the present invention.
3 and FIG. 3A are music data input terminal sections, FIG. 3B is an operation section and functional configuration, FIG. 3C is a cigarette lighter socket section 15 installed in an automobile, and FIG. 3D is a broadcast receiver. 22 is shown.

  FIG. 4 shows a system operation process of the wireless music layer (1) 28 shown in FIG.

The operation of the wireless music player (1) 28 of the present invention will be described with reference to FIGS.
The input terminal (1) 29 shown in FIG. 1 (a) receives digital music data from the input terminal (1) 29 and the memory 4 from which an analog music signal can be input from an external music playback player 39 such as a CD player or an MD player. It has an input terminal (2) 30 that can be input and an input terminal (3) 31, and has a function that can arbitrarily input a playback music source.

  FIG. 2 (b) shows the operation unit and functional configuration of the wireless music player (1) 28 of the present invention. The music data input from each input terminal is displayed on the display (1) 33 and the music information is displayed. The music starts by operating the play knob 36, the music advances by operating the music up knob 35, and the music playback order is reversed by operating the music down knob 37.

The name of the music, the order of the music, the music level, the frequency of the music data transmission radio wave 21 and the like are displayed on the display (1) 33, and the necessary sub-function display is displayed on the display (2) 34.
The transmission frequency of the music data transmission radio wave 21 to be transmitted to the broadcast receiver 22 can be set by a transmission frequency selection knob 38.

FIG. 3C shows the configuration of the cigar light socket 15, in which a socket + electrode 16 and a socket−electrode 17 are arranged, and these electrodes are plug + electrode 13, plug− By supplying the wireless music player (1) 28 corresponding to the electrode 12 with the cigarette lighter socket along the plug insertion direction 14, power can be supplied from the automobile battery.

FIG. 4D shows the configuration of the broadcast receiver 22. The broadcast receiver 22 has an antenna 20, a receiver display 23 that can display the reception frequency, a reception frequency selection knob 24 that selects the reception frequency, and a function. It has a switching knob 25 and a power line 26, and has a function of receiving music data transmission radio waves 21 from the wireless music player (1) 28 and reproducing music.

  With this configuration, it is possible to listen to music with the wireless music player (1) 28, the wireless music player (1) 28 is set in the cigar light socket 15, and the memory 4 is connected to the input terminals (FIG. 3 and FIG. 2) Music is started to be played by setting to 30 according to the memory insertion direction 32.

The wireless music playback process will be described with reference to the configuration of FIGS.
The memory 4 in which the music data is recorded by the music recording process shown in FIG. 1 is set in the input terminal (2) 30 or the input terminal (3) 31 of FIG. 3 and FIG.

  According to FIG. 4, when the recorded music data is automatically recognized by the compatible software identifying unit 95 and the recording method of the music data is recognized, the music reproduction starts. In the case of non-conformity, it is displayed on the display (1) 33 and music is not played back. The reproduced music data can be displayed on the display 33 by the music reproduction signal processing unit 96 to view the contents of the music information.

The music selection of the reproduced music is determined by the music selection determination unit by performing a setting operation using the music selection unit 97 of the display (1) 33.
For example, the display (1) 33 arbitrarily displays playback music information such as a song title, song number, playback song order, signal level, music data compression type, transmission frequency, and the like.

  By selecting and determining the playback music, the music playback control unit 99 sends the music playback data to be sent to the broadcast receiver 22 to the music signal transmission control unit 100, and the wireless transmission unit 10 transmits the music data transmission radio wave 21 to the broadcast receiver 22. To do.

  The broadcast receiver 22 shown in FIG. 4D receives the music data transmission radio wave 21 transmitted from the wireless music player (1) 28 by the antenna 20, and the broadcast receiver 22 demodulates the received radio wave and outputs the music from the speaker 27. I can hear it.

  Such a wireless music player (1) 28 has a display (1) 33 and a display (2) 34, an input terminal (1) 29, an input terminal (2) 30, an input terminal ( 3) It is possible to have a configuration in which 31 or the like is provided and music can be easily selected.

  However, since the wireless music playback apparatus having such a configuration does not have a memory function for storing playback music data, the data is lost by turning off the engine key of the car and the car engine key is turned on again. Will reset the system and return to the initial state.

  For this reason, the playback music has started a star from the first music and has caused a great obstacle to search a lot of music data.

  For this purpose, when one memory unit 103 for storing these music data is provided and the reproduced music data is arbitrarily stored and the same memory 4 is used next without erasing the music data even if the engine key of the automobile is removed. It has a memory function that allows you to continue listening to the last played music.

  Further, when the system is stopped due to a malfunction of the recording format and operation of the music data recorded in the memory 4, it has a function of instantaneously recovering the system by providing a reset / power switch 98.

  Also, depending on the type of car, even if the engine key is removed, the power from the car battery is supplied to the cigarette lighter socket 15, so that the power is always supplied to the wireless music player (1) 28. If you do not drive the car for a long time, it will accelerate battery drain. To solve this problem, a reset / power switch is provided to turn off the system power.

  With such a configuration, a more functional wireless music player can be provided.

  The wireless music player (1) 28 of the present invention shown in FIG. 5 is operated in fields other than automobiles using, for example, general commercial power, a DC power source, a battery, etc. as a power source to operate the wireless music player (1) 28 and many broadcast receivers 22. Has a configuration in which music can be heard.

  When the wireless music player (1) 28 is operated in a field other than the automobile to play music and listen to it with the broadcast receiver 22, the system configuration of the cradle 94 shown in FIGS. Has a function to connect general commercial power (AC) or battery (DC).

  The cradle 94 has a configuration in which a socket + electrode 16 and a socket-electrode 17 corresponding to the plug-electrode 12 and the plug + electrode 13 provided in the plug portion 11 of the wireless music player (1) 28 are provided and joined. is doing.

  By setting the plug portion 11 of the wireless music player (1) 28 along the plug insertion direction 14 to the cradle 94 having such a configuration, the power is supplied to the wireless music player (1) 28.

  According to such an application example, in a car, the cigar light plug 15 is used to listen to music by the broadcast receiver 22 mounted on the car, and the cradle 105 is used for general commercial power (AC) in other places than the car. By connecting to the socket, the wireless music player (1) 28 can be operated to receive music using the home radio.

  Furthermore, by using a battery (DC) connected to the cradle 94, it is possible to further widen the usage.

  By using such a system, it is possible to configure a system having a feature that music can be reproduced and heard by the same wireless music player (1) 28 in the car and in many other places.

  FIG. 6 shows a wireless transmission unit 53 which is an example of the wireless music playback apparatus of the present invention, a music player (a) 42 shown in FIG. 6 and FIG. The structure of the music player (b) 49 is shown.

  The wireless transmission unit 53 is a transmitter having a function capable of wirelessly transmitting music data to the broadcast receiver 22, and the music player (a) 42 and the music player (b) 43 reproduce music recorded in the memory 4. This is a music playback device having a function that can be performed.

  Thus, by separating the function capable of transmitting music data to the broadcast receiver 22 from the configuration of the music player (a) 42 and the music player (b) 43, both can be miniaturized. It is possible to improve functions and operability.

The operation according to the present configuration will be described below.
FIG. 6 (a) shows the side of the wireless transmission unit 53, which has an input terminal for inputting a plurality of music sources, to which music sources recorded in a plurality of music formats are connected to the respective input terminals. This shows an input terminal configuration that can play music.

FIG. (B) shows a functional configuration of the wireless transmission unit 53 capable of transmitting music data to the broadcast receiver 22, and FIG. (C) is installed in an automobile having a function of supplying power to the wireless transmission unit 53. A cigarette lighter socket 15 is shown.

The figure (d) has the function which can reproduce the music of the single memory 4 with the music player (a) 42 which has the slot terminal which can connect the single memory 4, and is connected to the wireless transmission unit 53. By doing so, a configuration is shown in which music can be heard by the broadcast receiver 22.

FIG. 9E shows a connection plug 104 that can directly connect music playback data to the input terminal 30 of the wireless transmission unit 53 without using the communication cable (1) 41 shown in the music player (a) 42. It is.

The figure (f) has the function which can play the music of each memory 4 with the music player (b) 49 which has the slot terminal which can connect several memory 4, and is connected to the wireless transmission unit 53. By doing so, a configuration is shown in which music can be heard by the broadcast receiver 22.

The figure (g) is a connection that allows music playback data to be directly connected to the input terminal 30 of the wireless transmission unit 53 without using the communication cable (1) 41 communication cable (1) 41 shown in the music player (b) 49. The plug 104 is shown.

  Music playback data is sent from the devices having the functions of the music player (a) 42 and the music player (b) 49 to the wireless transmission unit 53, and the broadcast receiver 22 receives and demodulates the music data transmission radio wave 21. Thus, music can be output from the speaker 27.

  The music player (a) 42 is provided with a display (3) 48 capable of displaying music reproduction information such as music title, music number, signal level, etc., and music source selection, music data processing function, It has a configuration that can play music with a music operation function and the like.

  This music player (a) 42 is provided with an input terminal (4) 43 to which a single memory 4 can be connected. By setting the memory 4 in the memory insertion direction 32, the music data is output and transferred to stop / By operating the playback knob 45, music playback is started and the music information is displayed on the display (3) 48.

  The reproduced music data is input to the input terminal (2) 30 of the wireless transmission unit 53 through the communication cable (1) 41 connected to the wireless transmission unit 53, and the music data is modulated by the wireless transmission unit 10 and is broadcast receiver 22. Is transmitted as music data transmission radio wave 21.

The broadcast receiver 22 has a configuration in which the music data is received by the antenna 20, and the broadcast receiver 22 can demodulate the music signal and output music by the speaker 27.

Further, the music player (a) 42 shown in FIG. 4 (e) has one or both of a connection plug (4) and a communication cable (1) 41, and can transmit music reproduction data to the wireless transmission unit 53. Has characteristics.

The music player (b) 49 is a music player (b) 49 having a memory slot terminal 52 to which a plurality of memories 4 can be connected and a memory changer function for listening to a lot of music. .

The music player (b) 49 has a configuration capable of connecting a communication cable (1) 41 for sending music data to the wireless transmission unit 53.

The music player (a) 42 and the music player (b) 49 are configured such that power can be supplied by the communication cable (1) 41 connected to the wireless transmission unit 53 when used in an automobile. It has a structure that allows users to enjoy music without worrying about the power supply even when playing music for a long time.

The music player (b) 49 has a slot terminal 52 to which a plurality of memories 4 can be connected, and has a memory changer function for listening to a lot of music.
This method can play music for a long time because it has many music sources. Furthermore, by having a plurality of memory slot terminals 52, it is possible to freely connect to the slot terminal 52 and select music to be listened to by arbitrarily adding the memory 4.

  For example, since it is possible to connect multiple memories 4, the music data recorded in the memory 4 is organized by music genre, and each music data such as enka, jazz, classic, etc. is recorded in the memory 4 and is stored in each memory slot terminal. By setting it, it becomes possible to selectively play back the music of your choice.

  In addition, the music data can be changed by adding or exchanging the memory 4 recorded for each music genre, thereby making it possible to construct a system structure that can easily reproduce new music and further improve the usability.

  The music player (b) 49 is provided with a plurality of memory slot terminals 52, so that any music can be played by operating the memory change knob 50, and further music can be played by system control. Memory operation position display 51 that can recognize the operation positions of a plurality of memories 4, a display (3) 48 that can display music information, a function switching knob 44, a music stop / playback knob 45 for operating music playback, and music playback An up knob 46, a music playback down knob 47, and the like are configured and correspond to the respective functions.

In order to reproduce music by the music player (b) 49, the memory 4 in which the music data is recorded according to the configuration of FIG. 1 is set at an arbitrary position of the memory slot terminal 52.
Music playback is performed by operating the stop / play knob 45 of the music player (b) 49, so that the music data starts playing through a process similar to the operation process shown in FIG. Is displayed.

  By switching or selecting the operation of the memory 4 by the function switching knob 44, the information is freely selected based on the music information displayed on the display (3) 48, and the music playback up knob 46 and the music playback down knob 47 are selected. Music can be freely selected and played by performing the operation.

  The reproduced music signal is transmitted to the wireless transmission unit 10 of the wireless transmission unit 53 by the communication cable (1) 41, and the modulated music data transmission radio wave 21 is transmitted to the broadcast receiver 22 and received by the broadcast receiver 22. The radio wave is demodulated and music is output from the speaker 27.

  The music player (b) 49 is provided with a memory operation position display 51 which can recognize the operation position of the memory slot terminal of each memory 4 so that the position of the memory 4 selected by the memory change knob 50 can be recognized. It has become.

  The music information of each memory 4 selected by the memory change knob 50 is displayed on the display (3) 48.

  It is also possible to listen to the music source of a plurality of set memories 4 continuously. For example, when five memories 4 are set in a memory slot, all the memories 4 are reproduced continuously or only the designated memory 4 is played. The function switching knob 44 can also be used to reproduce the program or to reproduce the program by selecting the reproduction order of the selected music.

  Wireless music having the characteristics of a music player (a) 42 having such a single memory 4 configuration and a music player (b) 49 capable of listening to music by a memory changer function having a plurality of memory 4 configurations. A playback device can be provided.

FIG. 7 shows an example of a changer system of the memory 4 by the memory 4 of the wireless music reproducing apparatus of the present invention.
This configuration is based on the configuration of the music player (b) 49 described with reference to FIG. 6 and has a changer function having a plurality of memories 4 capable of performing a large amount of music reproduction, so that music can be reproduced continuously. Is a music player (c) 54.

In recent years, the enjoyment of listening to music has been diversified and the music genre has been expanded as well. Music playback devices have come to be used by many people as a tool necessary for daily life.
In such an environment, there is an increasing demand for a music playback apparatus having a function capable of freely and quickly selecting a large amount of music. As a means for meeting such a demand, the music player (c) shown in FIG. ) 54.

  The music player (c) 54 shown in FIG. 7 has a configuration in which a battery 58 is provided inside so that the music can be listened to by mobile phone. The volume of the headphones can be adjusted by the volume up knob 55 and the volume down knob 56.

  Furthermore, when listening to music in a car, it is possible to provide a multi-use music playback device that can listen to music by the broadcast receiver 22 using the wireless transmission unit 53.

  This method is similar to the configuration of the music player (b) 49 shown in FIG. 6, and each memory 4 is arbitrarily set to the memory slot terminal 52 by a memory changer method capable of connecting a plurality of memories 4. It is possible to quickly switch between different music genres and display the music information on the display (3) 48 to reproduce the music.

Further, the music playback order of the plurality of memories 4 can be set by a function switching knob 44.
Recording music data for each genre in the memory 4 makes it easy to play and select music and improve operational convenience.

  In order to reproduce music by the music player (c) 54, the memory 4 in which the music data is recorded according to the configuration shown in FIG. -Music data starts to be played by operating the playback knob 45.

  The music player (c) 54 is connected by connecting the communication cable (1) 41 connected to the music player (c) 54 to the input terminal (1) 29 of the wireless communication unit 53 using the connection plug (1) 40. The music data is sent to the wireless transmission unit 10, and the music data is modulated by the wireless transmission unit 10 and demodulated on the broadcast receiver 22 side, and the music is output from the speaker 27 so that the music can be reproduced and heard. Become.

  Further, the music player (c) 54 has a configuration capable of playing music upon receiving power from the wireless transmission unit 53. In this case, the communication cable 41 is connected to the input terminal using the connection plug (3) 74. (2) By connecting to 30, it is possible to receive music data transfer and power supply at the same time, so that music can be played for a long time without using a battery.

  With this configuration, when the music player (c) 54 is used in a car, the music player (c) 54 is connected to the cigarette lighter socket 15 and can be supplied with power to play music. It is possible to provide a music playback device having a configuration and characteristics that allow the music to be enjoyed by using the headphones 57 while walking by operating the device with the battery 58 built in the music player (C) 54. It becomes.

  FIG. 8 shows configurations of a music player (d) 60 and a music player (e) 62, which are application examples of the wireless music playback device of the present invention. These devices transmit music directly to the broadcast receiver 22 as music data. It has a wireless transmission function capable of transmitting using the radio wave 21 and can be adapted to any car radio.

  In this method, a battery 58 as a power source is provided in each music player, and the radio is installed in any car without using an external power source. The player (e) 62 can listen to music.

The music player (d) 60 of the present invention has a configuration in which a battery 58 is provided as a power source in addition to the configuration of the music player (a) 42 described in FIG. 6 and a wireless transmission unit 10 for transmitting music to the broadcast receiver 22 is provided. It is.

  Music playback is performed by setting the memory 4 storing the music data to the input terminal (4) 43 of the music player (d) 60 along the memory insertion direction 32, so that the music data is sent to the music player (d) 60. The music information is displayed on the display (3) 48.

  The music reproduction is performed by operating according to the operation method shown in FIG. 6, the wireless transmission unit 10 directly transmits the music data transmission radio wave 21 to the broadcast receiver 22, and the broadcast receiver 22 receives the music. A music player (d) 60 having a feature capable of receiving radio waves and outputting music from the speaker 27 is configured.

  The music player (e) 62 incorporates the memory 4 in the configuration of the music player (d) 60 and further provides a connection plug (2) 61 as an external terminal for recording music, and is directly connected to the personal computer 1 shown in FIG. By connecting the connection plug 61 and recording music in the internal memory 63, and further having the wireless transmission unit 10, the music data is transmitted directly to the broadcast receiver 22 by the wireless transmission unit 10. The broadcast receiver 22 constitutes a wireless music playback apparatus that can receive and demodulate the received radio wave and output music from the speaker 27.

  As described above, the music player (d) 60 and the music player (e) 62 can transmit the music data transmission radio wave 21 directly to the broadcast receiver 22 installed in the automobile and listen to music. A playback device is provided.

FIG. 9 shows the configuration of a music player (f) 64 which is an application example of the wireless music playback apparatus of the present invention.
The music player (f) 64 has a terminal for using an external power source, for example, an AC or DC power source based on the configuration of the music player (c) 54 shown in FIG. It has a configuration that can be used.

  Further, the wireless transmission unit 10 is configured, and the music data transmission radio wave 21 can be directly transmitted to the broadcast receiver 22 installed in the automobile, so that music reproduction can be facilitated.

  With this configuration, the music player (f) 64 constitutes the headphone 57. Therefore, when listening to music with a mobile phone, the cigarette lighter shown in FIG. The power can be supplied from 15 and the system can be operated by supplying power from an AC power source in a home or the like, so that music can be heard no matter where the mobile phone is moved.

  The basic operation is the same as that of the music player (c) 54 shown in FIG. 7, and the memory 4 that can listen to a lot of music is set by the configuration of the memory slot terminal 52 that can connect a plurality of memories 4. It becomes possible to do.

The operation of the music player (f) 64 will be described with reference to FIG.
In order to perform music reproduction by the music player (f) 64, the memory 4 in which the music data is recorded by the configuration of FIG. 1 is set at an arbitrary position of the memory slot terminal 52.

  In order to perform music reproduction by the designated memory 4 from among the plurality of memories 4 set in the memory slot terminal 52, the memory 4 at the designated position can be selected by operating the memory change knob 50.

  The position of the selected memory 4 is displayed on the memory operation position display 51 by a lamp or the like, and the position can be confirmed. When function settings such as the playback order, level, system program, etc. of the playback music are required, the function can be arbitrarily set by the function switching knob 44.

By specifying the memory 4 to be played back, the music data is subjected to playback signal processing by the music playback unit 59, and the music playback information is displayed on the display (3) 48.
The music can be reproduced by operating the music stop / reproduction knob 45 along the display information.

Further, the music playback up knob 46 is operated to start the music playback, and the music playback down knob 47 is operated to return the music.
Next, there are two means for listening to music, one of which has two functions: a method of listening to music with the headphones 57 and a function of listening to music with the broadcast receiver 22.

These selections can be made by the function switching knob 44.
By setting the function in the headphone 57, the reproduced music can be heard from the headphone 57, and the volume is adjusted by the volume up knob 55 and the volume down knob 56.

Next, in order to listen to music by the broadcast receiver 22, the music data reproduced by setting the function switching knob 44 to the broadcast receiver is modulated by the wireless transmitter 10 and the reproduced music data is modulated and broadcast as the music data transmission wave 21. It is transmitted to the receiver 22.

  The antenna 20 receives the transmitted music data transmission wave 21, and the broadcast receiver 22 demodulates the signal and reproduces music through the speaker 27.

  The power source of the music player (f) 64 has a configuration that can be operated by supplying power from a battery 58 and an external power source 92 provided therein.

  The memory changer system using the memory 4 with such a configuration and function allows music to be played back wirelessly by the broadcast receiver 22, and further used for portable use and music playback using the broadcast receiver 22 at home. It is possible to provide a wireless music apparatus having a configuration and characteristics that can be used for multiple purposes.

10 and 11 show the configuration of a wireless music player (2) 88 which is an example of application of the wireless music playback apparatus of the present invention.
This wireless music player (2) 88 has a music memory function capable of recording and holding music data inside and can also use the memory 4 in which the music data is recorded, and the music source recorded in the internal music memory section can be used. It has a configuration in which music can be played and listened to by a broadcast receiver.

  10A shows an example of a music data input terminal portion of the wireless music player (2) 88, FIG. 10B shows a functional operation configuration, and FIG. 10C shows a cigarette lighter socket capable of receiving power supply. 15 configurations are shown.

  FIG. 11 shows an example of a system block of the wireless music player (2) 88 of the present invention shown in FIG. 10, and FIG. 11 (d) shows the broadcast receiver 22 and shows the wireless music player (2) 88. It has a function that can play and listen to music data sent from.

  The music data reproduced by the wireless music player (2) 88 of the present invention can be input from the personal computer 1 shown in FIG. 1 to the input terminal (2) 30 and used as a music source. It is also possible to reproduce music data by the memory 4 and music data by the external music player 39.

  The wireless music player (2) 88 has an operation configuration such as a function display unit 81, a function control knob 79, a display (2) 34, a transmission frequency selection knob 38, a plug unit 11, and the like shown in FIG. It has a configuration in which a function of controlling music by a remote controller can be arbitrarily provided.

  The wireless remote controller 89 can perform a music selection operation by transmitting a remote control radio wave 90 to the remote control receiver 91.

  Music playback is performed by the music data edited by the personal computer 1 shown in FIG. 1 and the memory 4 and the music data by the external music playback device 39 via the input terminal (2) 30 and the external sound input terminal (1) 29, respectively. Are input to the input interface 75 shown in FIG.

Each input music data is selected by the function control knob 79 by the function control unit 78, and the music data is stored in the music memory unit 83 as a reproduction signal by the music input signal processing unit 76 under the control of the CPU (central signal processing unit) 77. Is done.

  The music data stored in the music memory 83 is displayed on the function display 81 via the display controller 80.

  Furthermore, by selecting music by the function control knob 79 based on the music information displayed on the function display 81, the reproduction music data is sent to the transmission music signal processing unit 82, and transmission modulation is performed by the communication control unit 84 to perform radio transmission. The unit 10 transmits the music data transmission radio wave 21 to the broadcast receiver 22.

  The broadcast receiver 22 having received the music data transmission radio wave 21 can demodulate the signal input by the antenna 20 and reproduce music by the speaker 27.

The transmission frequency transmitted from the wireless music player (2) 88 to the broadcast receiver 22 can be set by selecting it with the transmission frequency selection knob 38.
Further, the set transmission frequency can be displayed on the display (2) 34.

  By setting the wireless music player (2) 88 to the cigarette lighter socket 15 as the power source, the respective + -electrodes provided in the plug portion 11 come into contact with each other and power can be supplied from the automobile battery.

  With such a configuration, it is possible to reproduce many music sources mainly using the music data in the music memory unit 83 provided therein.

Further, by providing the wireless remote controller 89 in order to improve the operability of music, it becomes possible to select music pieces from a remote location.
The wireless remote control 89 is provided with a knob for selecting music, and the remote control radio wave is received by the remote control receiver 91 by the knob operation, and the CPU (central signal processing unit) 77 controls the selection of music by the signal from the remote control. To select the playback music.

  Wireless music that can use the external memory 4 with such a configuration of the wireless music player (2) 88 and can listen to music by playing a music source stored in the internal music memory unit 83. It is possible to provide a wireless music playback device characterized by the configuration of the player (2) 88.

  FIG. 12 shows an example of the implementation of the wireless music player (3) 102 based on the wireless music player (2) 88 shown in FIG. 10 of the present invention. In order to facilitate the input of the music source, FIG. Input terminal (4) 101 is provided, and this input terminal (4) 101 is directly connected to the data input / output terminal of the personal computer 1 along the memory insertion direction 32, thereby eliminating the need for connection of a communication cable or the like and inputting a music source. The wireless music player (3) 102 is characterized in that the music source can be easily input and played back.

This wireless music playback device is a device that can easily listen to music in many fields centering on automobiles, and it has a new configuration that allows you to easily send music to broadcast receivers and listen to new ways of listening to music. The music source provided is a new music playback device that can be freely edited and created by a personal computer or the like, recorded in a memory, and easily listened to by an automobile broadcast receiver.
The music reproducing apparatus by such a method provides a new music listening method to many music fans and further creates an industry by new technological innovation.

An example of a system for creating and editing a music source for listening to music and recording music data in a memory 4 will be described. An example of a conventional wireless music player is shown. An example of implementation of the wireless music player (1) of the present invention is shown. Fig. 4 shows the operation process of an embodiment of the wireless music player (1) according to Fig. 3 of the present invention. An example of the system which combined the power supply of the wireless music player (1) of this invention with the cradle for obtaining from several power supply parts is shown. An example of the implementation of the wireless music player of the present invention is shown as an example of the configuration of a music player (b) using a wireless transmission unit, a music player (a) using a single memory 4 and a changer system using a plurality of memories 4 Indicates. An example of implementation of a memory changer type music player (c) having a plurality of memory 4 configurations according to the present invention will be described. An example of implementation of the system characterized in that the music player (d) and the music player (e) of the present invention have a wireless transmission unit will be described. An example of the implementation of a wireless music playback apparatus having a plurality of memories 4 and a memory slot for listening to a lot of music in the music player (f) of the present invention will be shown. An example of implementation by a system in which a memory capable of storing music data is provided in the wireless music player (2) of the present invention and music can be reproduced without using an external memory will be described. An example of an operation block configuration of the wireless music player (2) shown in FIG. 10 is shown. An example of implementation of a method in which an input terminal (4) is provided in the wireless music player (2) shown in FIG. 10 and music data can be directly input from a personal computer is shown.

Explanation of symbols

1. Personal computer Screen 3. Keyboard 4. Memory 5. Memory set direction Music source (1)
7). Music source (2)
8). Wireless player 9. Music playback unit 10. Wireless transmission unit 11. Plug part 12. Plug-electrode 13. Plug + electrode 14. Plug insertion direction15. Cigarette lighter socket 16. Socket + electrode 17. Socket-electrode 18. Power supply + cord 19. Power supply-cord 20. Antenna 21. Music data transmission radio wave22. Broadcast receiver 23. Receiver display 24. Receive frequency selection knob 25. Function switching knob 26. Power line 27. Speaker 28. Wireless music player (1)
29. Input terminal (1)
30. Input terminal (2)
31. Input terminal (3)
32. Memory insertion direction 33. Display (1)
34. Indicator (2)
35. Music up knob Music stop / play knob 37. Music down knob 38. Transmission frequency selection knob 39. External music player 40. Connection plug (1)
41. Communication cable (1)
42. Music player (a)
43. Input terminal (4)
44. Function switching knob 45. Music stop / play knob 46. Music playback up knob Music playback down knob 48. Display (3)
49. Music player (b)
50. Memory change knob 51. Memory operation position display 52. Memory slot terminal 53. Wireless transmission unit 54. Music player (c)
55. Volume up knob 56. Volume down knob Headphone 58. Battery 59. Music output switching knob 60. Music player (d)
61. Connection plug (2)
62. Music player (e)
63. Internal memory 64. Music player (f)
65. Security player 66. Security alarm transmitter 67. Security operation radio wave 68. Detection sensor 69. Detection direction (1)
70. Detection direction (2)
71. Detection direction (3)
72. Remote control receiver 73. Remote control control radio wave 74. Connection plug (3)
75. Input interface 76. Music input signal processing unit 77. CPU (Central Signal Processing Unit)
78. Function control unit 79. Function control knob 80. Display control unit 81. Function indicator 82. Transmission music signal processing unit 83. Music memory unit 84. Communication control unit 85. Frequency display control unit 86. Power supply unit 87. Power line 88. Wireless music player (2)
89. Wireless remote control 90. Remote control radio wave 91. Remote control receiver 92. External power supply 93. Frequency setting knob 94. Cradle 95. Matching software identification unit 96. Music reproduction signal processing unit 97. Music selection unit 98. Reset / power switch 99. Playback control unit 100. Music signal transmission control unit 101. Input terminal (4)
102. Wireless music player (3)
103. Music data memory unit 104. Connection plug (4)

Claims (10)

  The wireless music player (1) shown in FIG. 3 having a configuration capable of supplying electric power from a cigarette lighter socket of an automobile has a terminal capable of inputting a plurality of music and displays reproduced music information and functions. Display device, knob function that can control playback music, music storage unit that can store playback music data, reset / power switch device that can modify system operation, music data broadcast receiver In the configuration of the wireless music player (1) equipped with a wireless transmitter capable of transmitting to music, the display device can display music information and its control information, and all or part of the music data in the memory 4 is music. Even if the memory is stored and the power is turned off, the same memory 4 is set again and played back, and the designation stored in the music storage A function that can automatically recognize and play the input music source corresponding to each music data by the input terminal that can input multiple music sources and the configuration that can perform music playback quickly by collating with music data In addition, when the system operation is stopped, the power supply of this system can be arbitrarily turned on / off regardless of the configuration with a reset function that can quickly correct the system and the car engine key on / off. A wireless music playback device characterized in that each of the functions is configured individually or in combination in a music playback device having functions.   In the configuration of the wireless music player (1) according to claim 1, which has a configuration capable of supplying power from a cigarette lighter plug of an automobile, power is supplied from a general commercial power shown in FIG. 5 or a DC power source from a gattery or the like. A cradle capable of listening to music by transmitting music data to a broadcast receiver or a music playback device having a reception function by a cradle configuration having a power function capable of operating the wireless music player (1) Wireless music player characterized by system configuration.   The wireless transmitter that can transmit the music data shown in Fig. 6 corresponding to the cigarette lighter socket of the car to the broadcast receiver, the function that can select the frequency of the transmission radio wave, the input of multiple music data A wireless transmission unit that has a power input unit that can provide power to a music player, and that has a function to record music in a single memory and play back the music data. The music player (a) is composed of a switching device for selecting a music playback function, a processing device for playing music data, a display device for displaying music information, an output device for playing music data, and It has a communication cable configuration for sending playback music data to the wireless transmission unit and a configuration that can handle a dedicated connection connector. Yaresu wireless music playback devices having a structure and features reproducing music data has a function that can send a Note and music data can be reproduce music transmitted to the broadcast receiver to the transmitter unit.   The wireless transmitter that can transmit the music data shown in Fig. 6 corresponding to the cigarette lighter socket of the car to the broadcast receiver, the function that can select the frequency of the transmission radio wave, the input of multiple music data A wireless transmission unit that has a power input unit that can provide power to a music player, and that has a function to record music in a plurality of memories and play back the music data. The music player (b) comprises a memory slot terminal corresponding to a plurality of memories, and a memory operation position display for identifying a slot during operation of the plurality of memories. Switching device for selecting functions, processing device for reproducing music data, display device for displaying music information A playback music data output device, a communication cable configuration for sending playback music data to the wireless transmission unit, and a configuration that can handle a dedicated connection connector, and a function to send playback music data to the wireless transmission unit A wireless music playback apparatus having a configuration and characteristics capable of playing music by transmitting music data to a broadcast receiver.   The wireless transmitter that can transmit the music data shown in Fig. 7 corresponding to the cigarette lighter socket of the car to the broadcast receiver, the function that can select the frequency of the transmission radio wave, and the input of multiple music data A wireless transmission unit that has a power input unit that can provide power to a music player, and that has a function to record music in a plurality of memories and play back the music data. A music player (c), the music player (c) has a memory slot terminal corresponding to a plurality of memories and a memory operation slot operation position display, a switching device for selecting a music playback function, and a device for playing music data Signal processing device, display device for displaying music information, output device for playback music data, and wire playback music data A communication cable configuration that can be sent to a wireless transmission unit and a headphone function that can be used with a music player (C) without using a wireless transmission unit. Music player (C) with a memory changer function and a wireless transmission unit with a memory changer feature characterized by being capable of listening to music both in the car and on the mobile .   A music player (d) having a function capable of recording music in a single memory and playing back the music data by using the music player (d) configuration shown in FIG. The music player (d) has a switching device for selecting a music playback function, a processing device for playing back music data, a display device for displaying music information, an output device for playback music data, and further the music data to the broadcast receiver. Wireless music with a configuration and features that have a wireless transmitter capable of transmitting and a battery used as a power source inside the music player (d) so that music data can be transmitted to the broadcast receiver and played back Playback device.   In the music player (e) configuration shown in FIG. 8 without corresponding to the cigarette lighter socket of an automobile, the music data can be directly input from an external system. The music player (e) has a configuration in which a music plug (e) is provided with a plug for connection and is directly stored in the internal memory and stored in the internal memory. The music player (e) has a switching device for selecting a music playback function, a processing device for playing back music data, A display device for displaying music information, an output device for reproduced music data, and a wireless transmission unit capable of transmitting music data to a broadcast receiver, and a battery used as a power source is provided inside the music player (e) Wireless music playback with a configuration and characteristics that allow music data to be transmitted to a broadcast receiver and played back. Apparatus.   The music player (f) shown in FIG. 9 has the function of transmitting music data directly to the broadcast receiver by the wireless transmission unit without corresponding to the car cigarette lighter socket, and further music data is recorded. Switching device for selecting music playback function with memory slot terminal and slot operation position display that can connect multiple memory 4s, signal processing device for playing music data, and display for displaying music information Device, playback music data output device, and power supply device with external power source such as general commercial power AC or DC power source such as battery, etc. And when carrying it, you can listen to music with earphones or headphones, and in the car you receive power from the battery and broadcast Wireless music playback apparatus characterized by was have a function by function and memory changer configuration that can be listen to music using the broadcast receiver of the audio system in yet home can listen to music by Shin machine.   The wireless music player (2) shown in FIG. 10 that supports car cigarette lighter sockets has a music memory function that can record and hold large music data inside, and has a single external memory and a music source recorded in the internal memory. A configuration that allows playback and listening to music by a broadcast receiver and a configuration that can also play a music source by an external music playback player, and that can perform music playback operations with a wireless remote controller A terminal and input interface for inputting a plurality of music in a wireless music player, a music input signal processing unit, a display device capable of displaying playback music information, and a function control device (operation knob) for selecting music playback , Music memory section that can store music data, these CPU (Central Signal Processing Unit) capable of performing control, wireless transmitter capable of transmitting music data to broadcast receivers, and music data edited by a personal computer with a wireless remote control receiver and a single external memory The music data from the external music player can be input and the necessary music data can be stored and played in the music memory, and the internal memory, a single external memory and the music source from the external music player can be sent to the broadcast receiver. Wireless music playback apparatus having a configuration capable of listening to music and a configuration capable of controlling music selection using a wireless remote controller.   In the wireless music player (2) configuration according to claim 9, a wireless music connection terminal corresponding to an input / output terminal of a personal computer capable of creating and editing music data to facilitate the input of the music source shown in FIG. Wireless that has a feature that allows you to configure a music source input method that eliminates the need for connection of communication cables, etc. by connecting this input / output terminal directly to the data input / output terminal of a personal computer, provided at one end of the player (2) Music playback device.

Images