KR20000067308A - MP3 Player Device Loaded Into Casette Tape Player - Google Patents

Abstract

PURPOSE: A MP3 player mounted in a cassette tape player receives a recording signal through a recording function of the cassette tape player and forms the recording signal into a MP3 file, thereby providing the MP3 player in a low price. CONSTITUTION: A MP3 player mounted in a cassette tape player comprises a casing loaded or unloaded through an entrance portion of a cassette tape of the cassette tape player and having the same size and shape with the cassette tape, a controlling portion (14) mounted in the casing, a communicating interface(16) connected with an external device(50) to receive a data from the external device and transfer the data to the controlling portion, a storing portion(18) for storing the data according to a controlling operation of the controlling portion, a MP3 decoder(20) for decoding the data read from the stored data by the controlling portion, a D/A converter(22) for converting a decoded data into an analog signal, a reproduction signal transferring portion(24) for transferring the analog reproduction signal to be adjacent to a magnetic head of the cassette tape player, and a power source(26).

Description

MP3 Player Device Loaded Into Casette Tape Player

The present invention relates to an MP3 player, and more particularly, to a cassette player-mounted MP3 player that is mounted on a cassette tape player and transmits a playback signal to play MP3 data with the cassette tape player.

MP3 player is a device that compresses and plays back audio data, and is expected to be the next generation media because of its excellent sound quality and compression efficiency.

However, MP3 players do not use conventional media such as cassette tapes or CDs, but employ a method of transferring and storing files. Therefore, it is unfamiliar to users who are not familiar with computers. there was.

In addition, it is pointed out that there is a problem in forming a market as a new media because the configuration of the device is complicated and the unit price is high.

It is therefore an object of the present invention to provide an MP3 player device that is user friendly and low in manufacturing cost.

Another object of the present invention is to provide an MP3 player apparatus which can be mounted on a cassette tape player and reproduces an audio signal.

It is still another object of the present invention to provide an MP3 player apparatus for receiving a recording signal using a recording function of a cassette tape player and then writing it into an MP3 file.

1 is a perspective view of a device according to the invention,

2 is a block diagram showing the configuration of the apparatus of the present invention;

3 is a partial perspective view showing the configuration of the cover of the device according to the present invention;

4 is a block diagram showing a flow of creating an MP3 file according to the present invention;

5 is a perspective view showing another embodiment of the device according to the present invention;

Figure 6 is a perspective view of another embodiment of the device according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

12: casing 30: remote control transmitter

32: display section 34: key input section

40: cover 42, 44: cover

46: fixed pin 48: torsion spring

50: external device

Such an object of the present invention, the cassette tape through the cassette tape player can be mounted and detached, the casing having the same shape and size as the cassette tape; A control unit embedded in the casing; A communication interface enabling connection with the external device to receive MP3 data from an external device and transmit the MP3 data to the controller; A storage unit which stores data received from the external device under control of the controller; An MP3 decoder for decoding the stored data from the stored data by the controller; A D / A converter converting the decoded data into an analog signal; A reproduction signal transfer unit for transmitting the analog reproduction signal adjacent to the magnetic head of the cassette tape player when the casing is mounted to the cassette tape player; It can be achieved by a cassette tape player-mounted MP3 player device including a power supply unit for supplying power.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 is a perspective view showing the overall shape of a cassette tape player mounted MP3 player device according to the present invention.

The apparatus according to the present invention comprises a casing 10 having the same shape and size as a cassette tape mounted and driven in a cassette tape player, and a configuration for reproducing MP3 files embedded in the casing. Thus, the casing 10 can be mounted in a general cassette tape player, and is driven in such a mounted state. In addition, the reproduction signal transmission unit 24 which transmits a magnetic signal adjacent to the head of the cassette tape player is provided in an open shape, and the jack 16 as a communication interface which can be connected when receiving data from an external device. And a jack 38 which can be connected when outputting data to an external speaker is provided.

Since the device of the present invention has a built-in power supply, a charging terminal 36 capable of recharging the power and an LCD display 32 for displaying the operating state of the device are provided in the center portion. In addition, a key input unit 34 is provided on one side of the casing 12 that allows a user to instruct such as on / off of the device and selection of desired music, and the transmitter 30 can be remotely controlled from the outside. Is provided. Here, the jacks 16 and 38, the connecting terminal 36, the key input unit 34 and the display window 32 are preferably formed in any part of the casing 12 in consideration of the user's convenience and the convenience of the manufacturing method. Can be.

Referring to FIG. 2, in the present invention, the MP3 drive portion is embedded in the casing 10 of FIG. The control unit 14 controls the operation of the overall configuration, and reads or stores the data in the storage unit 18 of the MP3 method stored in the storage unit 18.

The data read out from the storage 18 is input to the MP3 decoder 20 by the controller 14, and the decoder 20 decodes the data to generate audio digital data. This signal is converted into an analog signal by the D / A converter 22 and input to the reproduction signal transfer section 24.

The reproduction signal transmission unit 24 receives electromagnetic signals as a conductor having a predetermined area and generates electromagnetic waves. Therefore, the magnetic tape of the cassette tape player is configured to transmit a magnetic signal to the magnetic head when the magnetic head is approached. It is desirable to have a constant area of a degree sufficient to ensure the reliability of signal transmission. The cassette tape player generates sound through the speaker by receiving the magnetic signal transmitted from the apparatus of the present invention mounted therein and processing the same as the signal received from the cassette tape. Therefore, the user can listen to the MP3 music through the cassette tape player which is already familiar.

Since the apparatus of the present invention is identical in appearance to the cassette tape, it can be driven in any player that can accommodate the tape. Therefore, it can be preferably used not only in home audio sets but also in portable cassette tape players or car audio of automobiles.

In this way, the cassette tape player can be played by listening to MP3 data, or by providing an output interface, a user can combine the terminals to play sound through a speaker such as headphones or earphones. In this case, the output interface consists of an amplifier for amplifying the analog signal input from the D / A converter 22 and a jack (38 shown in Fig. 1) for accommodating the terminal.

On the other hand, the MP3 file is stored in the storage unit 18 is read by the control unit 14, when the user wants to save a new file received from the external device 50 and stores it. The external device 50 has a function of transmitting and receiving data, and any device capable of transmitting MP3 data to the device of the present invention as well as a computer may be used.

In addition to receiving data through the communication interface 16, the device of the present invention can use a removable memory card as the storage unit 18 to receive and reproduce new data into the device by replacing and mounting the card. In this case, as the memory card, a flash memory card is preferable in consideration of memory capacity and price.

When the user uses the device of the present invention, a key input unit 34 is provided on one side of the casing 12 that can input an instruction such as turning on / off the device or selecting a desired music file. Since the apparatus of the present invention can be mounted and used in a cassette tape player in addition to being used independently, the user cannot operate the key input unit 34 while being mounted and driven in the cassette tape player. Thus, by providing a remote control transmitter and receiver, the user transmits a control command as a radio signal by using the remote controller 30 as a remote control transmitter, which is received by the receiver 28 of the apparatus and transmitted to the controller 26.

It is desirable to provide a display section 32 capable of displaying on / off, selection of a desired file, time, etc. when the apparatus of the present invention is used independently or mounted on a cassette tape player. The display unit 32 receives and displays a signal from the control unit 32 as an LCD. It is preferable that the display portion is formed in the central portion of the casing 12.

The apparatus of the present invention has a power supply unit 26 therein and may be supplied with a general battery or external power as it is. However, a battery that can be charged may be used in consideration of a portable case. In this case, it is preferable that repetitive filling is possible. Therefore, when using a rechargeable battery as the power supply unit 26, the charging interface 36 that can be connected to the external charging device is provided. However, the charging terminal may be configured to simultaneously receive MP3 data. As such, properly configuring the pins of the communication interface and the charging interface may be easily performed according to the implementation of the device.

On the other hand, since the reproduction signal transmission unit 24 transmits the magnetic signal to the magnetic head of the cassette tape player, the surface thereof should be kept clean and flat as much as possible to reduce the occurrence of noise. Therefore, it is preferable to cover the upper portion of the cassette tape player in a state where it is not mounted to prevent foreign matter from accumulating or adhering to it.

3 shows the cover 40 of the reproduction signal transmission unit 24 in detail, in which two symmetrical covers 42 and 44 which are divided to the left and right are casing with the fixing pin 46 and the torsion spring 48, respectively. It is hinged to (12). The cover is urged upward by the torsion spring 48, and the movement upward is limited by the locking jaw 49 to maintain the level. When the casing 12 is mounted on the cassette tape player and the magnetic head assembly is lowered, the lids 42 and 44 are moved downward to both sides by the head assembly, so that the upper part of the playback signal transmission section 24 is opened and the head and playback signals are opened. The delivery unit 24 is approached. These two members are not in contact but are close enough to carry a magnetic signal without loss.

As described above, the apparatus of the present invention can reproduce data downloaded from an external device or data stored in a memory card, but can create an MP3 data file through a cassette tape player. 4 shows a part of the configuration for this. When the recording signal is input by the recording function of the cassette tape player when the apparatus of the present invention is mounted on the cassette tape player, the magnetic signal receiving unit 52 installed in the apparatus of the present invention is shown. Receives it and the MP3 encoder 54 converts it to MP3 and then forms an MP3 data file. The file thus formed may be stored in the storage unit 18 by the controller 14 and may be output to the external device 50 as necessary. Therefore, when the existing cassette tape player is configured to combine the radio or recorder or CD player to record the sound generated through these devices, it is operated to record these sounds and then equipped with the apparatus of the present invention for encoding. By doing so, you can create MP3 files.

Figure 5 shows another embodiment of the present invention, the remote control transmitter 30 is detachably fixed to one side of the casing (12). Therefore, the user may fix the remote controller 30 to the casing 12 as necessary, or may use it separately. Since the remote controller 30 is provided with a key input unit 34, in this case, the casing 12 itself does not need a separate key input unit 34. By such a configuration, when the speaker means is directly connected to the apparatus of the present invention, the remote controller 30 is attached and used, and when mounted on another cassette player, the remote controller 30 can be separated to operate the device. It is.

6 shows another embodiment of the present invention, in which the remote control transmitter 30 is detachably fixed to a central portion of the front surface of the casing 12, where a key input unit 34 and a display unit 32 are formed. It is. According to this embodiment, the user can conveniently control the device by separating the remote controller 30 from the casing 12 and manipulating the key input unit 34 while looking at the display unit 32.

As described above, the apparatus according to the present invention is mounted on an existing cassette tape player and can reproduce MP3 data, and is easy to use and low in manufacturing cost. In addition, it is possible to control operation even during data reproduction by the remote control remote controller, and even when used in a portable cassette tape or a car audio, it can be stably reproduced MP3 file even when used in a shock.

In particular, according to the recording function of the cassette tape player, it is possible to receive the signal and create an MP3 file.

Claims (11)

A casing 12 which can be attached and detached through a cassette tape inlet of the cassette tape player and has the same shape and size as the cassette tape; A control unit 14 embedded in the casing 12; A communication interface (16) which enables connection with the external device (50) to receive data from the external device (50) and transmit it to the control unit (14); A storage unit 18 for storing data received from the external device 50 under the control of the controller 14; An MP3 decoder (20) for decoding the data read out by the controller (14) from the stored data; A D / A converter 22 for converting the decoded data into an analog signal; A reproduction signal transfer unit (24) for transmitting the analog reproduction signal adjacent to the magnetic head of the cassette tape player when the casing (12) is mounted to the cassette tape player; MP3 player device comprising a cassette tape player; power supply unit for supplying power. The remote control signal transmitter 30 of claim 1, further comprising a remote control signal transmitter 30 for transmitting a signal of an operation command of a user, and a remote control receiver 28 for receiving a control signal from the transmitter 28 and transmitting the signal to the controller 14. Apparatus further comprising. An apparatus according to claim 1, further comprising a display portion (32) for displaying an operating state. 10. The apparatus of claim 1, further comprising a key input (34) for directing operation by the user. 3. The device according to claim 2, wherein said remote control transmitter (30) is detachably fixed to said casing (12). 6. Device according to claim 5, characterized in that the remote control transmitter (30) detachably fixed to the casing (12) comprises a key input section (34) or a display section (32). 2. Device according to claim 1, characterized in that the power supply (26) is chargeable and further comprises a charging interface (36) for connecting with an external charging device. 2. An apparatus according to claim 1, further comprising an output interface (38) for amplifying the analog reproduction signal of said D / A converter (22) and transmitting it to an external speaker device. 2. The apparatus according to claim 1, further comprising a cover (40) for selectively closing an upper portion of said reproduction signal transmitting portion (24) and opening when the head of said cassette player approaches. The apparatus of claim 1, further comprising a magnetic signal receiving unit (52) for receiving the recording signal of the cassette tape player, and an MP3 encoder (54) for receiving the signal from the magnetic signal receiving unit (52) and encoding the MP3 file. Device characterized in that. Device according to any of the preceding claims, characterized in that the storage (18) comprises a flash memory.