KR100360390B1 - MPEG player having a function of a cassette tape and method for controlling the same - Google Patents

Abstract

The disclosed MPEG player is manufactured in the shape of a cassette tape, and the final output reproduced in the MPEG player thus produced is converted into a magnetic signal so that it can be reproduced through a magnetic tape deck like a general analog magnetic tape, while an analog signal input from the outside Is a cassette player in the shape of a cassette tape which converts a digital signal into a digital signal and then compresses it to be recorded on a memory. The MPEG player has a play function alone or through a cassette tape deck according to a user's operation. While MPEG players can be played back like cassette tapes, analog signals output through radio receivers or double decks can be converted into signals and recorded on memory.

Description

MPEG player having a function of a cassette tape and method for controlling the same

The present invention relates to an MPEG player and a control method thereof.

More specifically, the MPEG player is manufactured in the shape of a cassette tape, and the cassette player is formed in the shape of a cassette tape that converts the final output reproduced in the MPEG player into a magnetic signal so that the MPEG player can be reproduced through a magnetic tape deck like a general analog magnetic tape. An MPEG player and a control method thereof.

In general, in order to listen to classical music or pop music, audio equipment that plays back cassette tapes, compact discs, etc., in which audio signals are recorded, is used. In addition, compact discs can be played through computer systems equipped with CD-ROM drives and speakers.

The dual compact disc records data on the surface of the disc using pulse code modulation (PCM) data to record and reproduce various audio signals as they are.

When the pulse code modulated data is reproduced in this manner, it is reproduced by optical pickup of an audio device or a CD-ROM drive. The light emitted from the optical pickup described above is reflected by the compact disk reflecting surface and received by the optical pickup again, and the audio signal is reproduced by signal processing.

In addition to the method of reproducing audio signals recorded on a compact disc through the above-described audio device or CD-ROM drive, recently, audio files such as * .mp3, * .ra, * .rm, etc. may be transferred through a personal computer (PC). Software for producing and reproducing has been developed and widely used by many computer users.

Such a voice file is different from the existing hi-fi audio, and has a form in which music is compressed using a moving picture expert group (MPEG) audio method having a higher quality and a higher compression ratio than the hi-fi audio method. In this case, the MPEG audio system may store about 12 times the music in the same sized storage space when comparing the hi-fi audio system with the storage capability.

The above-mentioned MPEG audio method includes MP3 (MPEG1 Layer3) or AAC (Advanced Audio Coding). Among them, AAC, also called MP4, is a music compression technology adopted as an audio standard of MPEG2 and its size is based on sound quality such as MP3. Is reduced by about 25%.

The voice data compressed by the above-described compression method is downloaded to the MPEG player through a PC. When the user's play key signal is input while the downloaded voice data is stored in the memory, the selected voice data is read and decoded one block at a time.

The decoded audio signal is output for the user to hear through the earphone output of the MPEG player.

However, as described above, since the compressed voice data is normally played only in a PC or an MPEG player that plays only compressed voice data, users without a PC or an MPEG player cannot listen to music provided by the compressed voice data. There was this.

Accordingly, an object of the present invention is to produce an MPEG player in the shape of a cassette tape to solve the above-mentioned problems, and converts the final output reproduced in the MPEG player to a magnetic signal through a magnetic tape deck like a general analog magnetic tape. An MPEG player having a cassette tape shape for reproducing and a control method thereof are provided.

It is also an object of the present invention to provide an MPEG player having a cassette tape shape and a method of controlling the same, which compresses an audio signal input from the outside according to the MP3 compression method and stores the same in a memory.

1 is a schematic block diagram illustrating the structure of an MPEG player having a cassette tape shape according to the present invention;

FIG. 2 is a schematic structural block diagram of a remote controller applied to FIG. 1;

3 is a flowchart illustrating a method of implementing an operation mode by a user's key signal in an MPEG player to which the present invention is applied;

4 is a flowchart illustrating a method of implementing an execution mode according to the operation mode determined by FIG. 3;

5 is a view schematically illustrating a driving wheel and a belt to recognize the present invention when the present invention is operated in a cassette tape mode;

6 is a view showing another embodiment of FIG. 5;

7 is a state diagram used in the present invention.

* Description of Signs of Main Parts of Drawings *

10: key input unit 20: interface unit

30: memory 40: main control

50: I / O control unit 60: earphone output unit

70: magnetic generator 80: remote controller

90: mode switch 100: driving wheel monitoring unit

170: audio signal input unit 200: key input device

110, 110a: driving wheel 120, 120a: belt

130, 130a: rod

In order to achieve the above object, the present invention provides a key input unit for inputting a key signal according to a user's operation, an interface unit for receiving a compressed voice signal from a PC, and a voice signal transmitted through the interface unit. The main control unit, a key input unit and the main control unit for outputting the driving control signal to the entire system, the control signal for the whole system, and reading and decoding the compressed voice signal stored in the memory according to the user's key operation, the key input unit and the main control unit are mutually communicated. I / O control unit to enable the user, an earphone output unit to output the audio signal decoded by the main control unit when the single play mode is selected by the key input unit, and a main control unit when the cassette tape mode is selected by the key input unit. Generates a decoded audio signal as a magnetic signal and attaches it to the header of the magnetic tape deck. Magnetic generation unit for reading and output to the outside, and when the MPEG player proceeds in the cassette tape mode to detect the rotational speed and direction of rotation of the drive wheel to recognize the key signal input by the user and transmits it to the main control unit The driving wheel monitoring unit and a mode switching switch for outputting the decoded voice signal to the earphone output unit or the magnetic generator in accordance with the user's operation.

In addition, the apparatus of the present invention for achieving the above object is a key input unit for outputting a recording key signal according to the user's operation, an audio signal input unit for outputting an audio signal input from the outside, and recording the key input unit And a control unit for compressing an audio signal input through the audio signal input unit in response to the key key signal and storing the audio signal in a memory.

The present invention for achieving the above object, (1) when the player is powered on, initializes the entire system and checks the input of the mode switching switch to set the initial mode, and (2) to set the initial mode And checking the current mode by checking the input of the mode switching switch, and determining whether the checked current mode and the initial mode match, (3) if the current mode and the initial mode match, determining the current mode, and If the mode is the single play mode, the operation mode of the entire system is set according to the user's key operation. If the current mode is the cassette tape mode, the operating mode is sensed by detecting the rotation speed and the rotation direction and maintaining the operation mode accordingly. Process.

The present invention for achieving the above object, the process of (A) disabling the time interrupt after performing the operation by enabling the time interrupt, (B) the operation mode and the execution mode set according to the user's operation is the same Determining whether the operation mode is in the standby state when the operation mode and the execution mode match, and (D) determining whether the remote controller is selected when the operation mode is in the standby state. And (E) if the remote controller is selected, outputting the current state of the system to the remote controller and initiating a time interrupt.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram for explaining the configuration of an MPEG player having a cassette tape shape according to the present invention, the configuration of which is as follows.

The key input device 200 is a device for inputting a key signal for the user to operate the MPEG player.

The above-described key input device 200 is provided with a key input unit 10 consisting of a plurality of buttons provided on the MPEG player front panel having a cassette tape function, and an MPEG player in a single play mode. In case of operation, the remote controller 80 outputs a key signal for player adjustment, and displays only playback information when the MPEG player operates in the cassette tape mode.

The plurality of buttons of the key input unit 10 may include a button for implementing a single play mode, a plurality of buttons for implementing a cassette tape mode, a button for recording an external signal on the memory 30, and the like.

Of course, as described above, the buttons provided in the key input unit 10 are all provided with the same remote controller 80.

At this time, the remote controller 80 can be used only when there is a remote controller selection signal of the key input unit 10.

As shown in FIG. 2, the remote controller 80 outputs a key signal to the main controller 40 through the I / O controller 50, and the external display data from the main controller 40. And a wireless matrix receiver 81 for receiving voice data, a key matrix 82 for generating a key signal according to a user's operation, and a main controller 40 input through the aforementioned wireless transmitter / receiver 81. And a display window 83 for receiving and displaying data for an external display and a controller 84 for controlling the entire system.

The interface unit 20 is a circuit block connecting the MPEG player and the PC and receives the compressed voice data selected according to the user's intention from the PC.

The memory 30 stores compressed voice data transmitted through the interface unit 20 described above by the control signal of the main controller 40. The stored voice data is output to the main controller 40 according to the control signal of the main controller 40.

The above-described memory 30 is a built-in memory or an external memory that can be inserted or detached, and a flash memory or the like is widely used.

The main controller 40 outputs a control signal for controlling the entire system, reads and decodes the compressed voice data stored in the memory 30 according to the user's key operation, and then outputs the earphone output unit according to the user's selection. 60) or to the magnetic generator 70.

At this time, the main control unit 40 processes the data stored in the memory 30 according to the operation of the user's key input unit 10 as described above to be output to the earphone output unit 60 or the magnetic generating unit 70. Rather than determining whether the driving wheel (110 of FIGS. 5 and 6) rotates, the earphone output unit 60 or the magnetic generation is performed by signal processing the data stored in the memory 30 by determining the single play mode or the cassette tape mode. Output to the unit 70.

That is, the main controller 40 switches the current mode to the cassette tape mode when the driving wheel (110 in FIGS. 5 and 6) rotates, so that the playback or recording mode is implemented on the cassette tape mode.

If the driving wheel (110 of FIGS. 5 and 6) does not rotate, the current mode is switched to the single play mode, so that the play or record mode is implemented in the single play mode.

In addition, the main control unit 40 compresses the audio signal input through the audio signal input unit 110 according to the MP3 compression method in response to the recording key signal input from the key input device 200 and then, on the memory 30. Control to be recorded.

The I / O control unit 50 controls communication between the key input device 200 and the main control unit 40 described above to allow the main control unit 40 to receive a user's key signal.

The earphone output unit 60 outputs the voice signal decoded by the main controller 40 to the outside through the earphone when the single play mode is selected by the key input unit 10 or the remote controller 80.

When the cassette tape mode is selected by the key input unit 10 or the remote controller 80 described above, the magnetic generating unit 70 converts the audio signal decoded by the main control unit 40 into a magnetic signal to the header of the magnetic tape deck. To be read and output to the outside.

The driving wheel monitoring unit 90 detects the rotation speed and the rotation direction of the driving wheel (not shown in the drawing) to recognize a key signal input by the user when the MPEG player proceeds in the cassette tape mode. 40).

The mode switching switch 100 selectively connects the main control unit 40 and the earphone output unit 60 or the magnetic generator 70 according to a user's operation, so that the voice signal decoded by the main control unit 40 is output to the earphone output unit. 60 or through the magnetic generator 70 to be output.

In this case, the mode switching switch 100 is provided in the key input unit 10.

The audio signal input unit 110 receives an audio signal output through an external device such as a radio receiver and transmits it to the main controller 40.

FIG. 5 is a view schematically illustrating a driving wheel and a belt to recognize the present invention when the cassette tape mode is operated.

As shown, when the MPEG player to which the present invention is applied is operated in a cassette tape mode, the cassette tape deck may implement the MPEG player as a cassette tape.

That is, when the user inserts the MPEG player into the deck of the audio device, the pair of driving wheels 110 and 110a described above are coupled to the pair of rods 130 and 130a protruding from the deck. In this state, when the user inputs an operation signal to the MPEG player, for example, play, rewind, fast forward, etc. by using an operation control button of an audio device having a cassette tape deck, the rods 130 and 130a described above. Among them, only a predetermined rod 130 rotates in a predetermined forward or reverse direction.

As the rod 130 rotates as described above, the belt 120 coupled to the pair of driving wheels 110 and 110a starts to rotate, and the other rod 130a also starts to rotate.

Therefore, the drive detection sensor 90 detects an interlocking state of the drive wheels 110 and 110a interlocked by the belt 120 and outputs the detected result value to the main controller 40.

Then, the main controller 40 performs the cassette tape mode according to the rotational speed and the rotational direction of the driving wheel 110 described above, which is the result detected by the driving wheel detecting unit 90.

That is, the accompanying drawings, Figure 5 is to rotate the arbitrary rod after detecting the rotation of the other rod to check the presence of the tape, to implement the cassette tape mode.

Meanwhile, although the driving wheel 110 and the belt 120 are used as described above to recognize the MPEG player as a cassette tape, in another embodiment, the driving wheel 110 is provided with a separate gear and two driving wheels ( 110 may be interlocked.

That is, the accompanying drawings, FIG. 6 is a view showing another embodiment of FIG. 5, and as shown in FIG. 5, another belt 120a is provided with a predetermined driving wheel 110 and a plurality of supports 140. When the MPEG player is mounted on the cassette deck, the belt 120a is fitted between the roller 150 and the sensor 160.

Therefore, when the driving wheel 110 described above is rotated, the roller 150 is also rotated by the belt 120a. Accordingly, the sensor 160 determines whether the belt 120a is present and transmits a signal for implementing the tape mode to the main controller 40.

Those skilled in the art can easily implement various embodiments in addition to the above-described embodiment when implementing the cassette mode using the MPEG player as described above.

The operation of the MPEG player having the cassette tape function according to the present invention configured as described above will be described in more detail with reference to the accompanying drawings.

3 is a flowchart illustrating a method of implementing an operation mode by a user's key signal in an MPEG player to which the present invention is applied.

As shown, first, the main controller 40 sets the input / output through the I / O control unit 50 when the power of the MPEG player is turned on (S210). In operation S220, the entire system is initialized with initial data set in the internal memory.

As described above, after performing the initialization process, the main controller 40 checks whether the mode switching switch 90 is switched through the I / O controller 50 (S230).

As a result of the check, when the mode switching switch 90 is switched to the single play mode or the cassette tape mode, the switched mode is set to the previous mode (S240). Then, the main controller 40 checks the switching state of the mode switching switch 90 through the I / O control unit 50 at a short time interval and determines whether the previously set previous mode and the current mode being checked coincide with each other (S260). )do.

As a result of the above determination, when the previous mode and the current mode match, it is determined whether the current mode is the single play mode, the recording mode, or the cassette tape mode (S270). As a result of determination, if the user inputs the key signal input through the key input unit 10 or the remote controller 80 in the single play mode, the play key signal is set in the internal memory (not shown) as a previous key signal ( S280).

If the previous mode and the current mode do not match, that is, the previous mode was the stop mode, but as described above, when the user inputs the play key signal, the current mode is changed to the play mode.

At this time, the main controller 40 initializes the entire system and changes the stop mode, which is the previous mode, to the play mode, which is the current mode (S370).

After the previous key signal is set as described above, the key signal currently being input is checked (S290). As a result of the check, it is determined whether the previous key signal and the current key signal match (S300). If the previous key signal matches the current key signal, the current operation mode is maintained (S310), and the current operation mode is checked (S205).

On the other hand, when the previous key signal and the current key signal does not match, that is, the previous key signal stored in the memory 30 as described above is a play key signal, when the key signal input by the current user is a stop key signal, The play key signal as the previous key signal is changed to the stop key signal as the current key signal (S320).

Then, it is determined whether the current operation mode is changed to the operation mode corresponding to the changed key signal (S330), and if the current operation mode corresponds to the changed key signal, the process is repeatedly performed from the process of checking the current operation mode (S250). do.

Meanwhile, if the current operation mode is not the mode corresponding to the changed key signal, it is determined whether the operation mode is the standby mode or the stop mode (S340). If the determination result is the standby mode or the stop mode, the standby state until the execution is completed Repeating from the step (S250) of checking the current operation mode while maintaining (S350).

In this case, when the operation mode is not the standby or stop mode, the process of checking the current operation mode while changing the current operation mode to a mode corresponding to the changed key signal and maintaining the standby state until execution is completed (S360). Repeated from (S250).

If, as a result of the above-described determination (S270), if the current mode of the MPEG player is the recording mode, the operation is the same as the single play mode. In this case, when the key signal of the single play mode is the play key signal, the recording key signal is used in the recording mode. Is replaced by.

That is, the recording mode is a concept opposite to the single play mode described above, and the single play mode reads and decodes the digital audio signal recorded in the memory 30 so that the user can hear it.

On the other hand, in the recording mode, the main controller 40 compresses a signal input through the audio signal input unit 110 such as a radio receiver or a double deck according to the MP3 scheme. The compressed data is recorded on the memory 30 under the control of the main controller 40.

Therefore, detailed description of the recording mode will be omitted.

If, as a result of the above-described determination (S270), when the current mode of the MPEG player is the cassette tape mode, the rotation speed and the rotation direction of the driving wheel 110 are sensed through the driving wheel detecting unit 90 (S380). .

As described above, it is determined whether the rotation speed of the driving wheel 110 detected by the driving wheel detecting unit 90 is equal to or slower than the preset stopping speed (S390). If the rotation speed is equal to or less than the preset stop speed, the key signal input by the user is recognized as a stop signal (S400), and the current mode is changed to the stop mode and the current mode is checked (S250). Repeat from now on.

On the other hand, if it is determined that the rotation speed is faster than the preset stop speed, it is determined whether the rotation speed is equal to or slower than the preset play speed (S410). As a result, if the rotation speed is equal to or lower than the preset play speed, it is recognized as a play signal (S420), the current operation mode is changed to the play mode, and the process is repeated from the process of checking the current mode (S250).

In this case, when the rotation speed is faster than the preset play speed, it is determined whether the rotation direction of the driving wheel 110 is the forward direction (S430). As a result of the determination, if the rotation direction is the forward direction, it is recognized as an F / F signal (S440), and the current operation mode is changed to the F / F mode, and then the process is checked from the step (S250).

On the other hand, if the rotation direction is the reverse direction as a result of the determination is recognized as a REW signal (S450), after changing the current operation mode to the REW mode and repeats the process (S250) to check the current mode.

As described above, the main controller 40 checks the current operation mode and changes the operation mode according to the user's key signal in an infinite loop until the MPEG player is powered off at short intervals. .

FIG. 4 is a flowchart illustrating a method of implementing an execution mode according to the operation mode determined by FIG. 3.

As illustrated, the time interrupt is enabled (S600) to switch the currently set operation mode to the execution mode so that the MPEG player is operated, and then the above-described time interrupt is disabled (S610).

The time interrupt is a signal required for the MPEG player to execute one mode set to the operation mode while operating in the cassette tape mode.

Then, it is determined whether the operation mode set according to the user's operation matches the current execution mode (S620). If the operation mode does not match the execution mode, the operation of the audio output terminal is stopped (S630).

As described above, after stopping the voice output stage, it is determined whether the current operation mode is in a standby state (S640). If the determination result is a standby state, a signal for informing the execution completion state is delayed after delaying a predetermined time (S650). do. At this time, the constant time is a time set as a default and maintains standby state.

In operation S660, it is determined whether the remote controller 80 is selected by the user.

When the remote controller 80 is selected as a result of the above-described process (S660), the main controller 40 transmits the current state of the MPEG player through the I / O controller 50 to the wireless transmitter / receiver of the remote controller 80. After outputting to (81) to display on the display window 83 (S670), the time interrupt is initialized (S680) and terminated.

Then, as a result of the above-described determination (S640), if the current operation mode is not in the standby state, changing the execution mode to the set operation mode (S690) and then determining whether the above-described remote controller 80 is selected ( Repeatedly performed from S660) to inform the user of the current state of the MPEG player through the remote controller (80).

On the other hand, as a result of the determination in the above-described process (S620), if the set operation mode and the current execution mode is the same, it is determined whether the operation mode is a standby state (S700). When the operation mode is in the standby state, it is determined whether the remote controller 80 is selected (S710).

As a result of the determination, when the remote controller 80 is selected, the main controller 40 outputs the current state of the MPEG player to the wireless transmitter / receiver 81 of the remote controller 80 through the I / O controller 50 to display the display window. After it is displayed at S83, the time interrupt is initialized at S730 and then terminated.

When the current operation mode is not in the standby state, as a result of the determination in the above-described process (S700), it is repeated from the process of determining whether the above-described remote controller 80 is selected while changing the execution mode to the set operation mode (S740). By doing so, the user is informed of the current state of the MPEG player through the remote controller 80.

The reason for initializing the time interrupt in the above-described steps S680 and S730 is to execute another operation mode selected by the user.

In this case, when the current operation mode and the execution mode are different, the execution mode is performed in the operation mode in the above-described process (S690) or (S740). In this case, when the execution mode is the play mode, the main control unit 40 first stores the memory. The song number variable value of the internal memory (not shown) is set so that the first song of the songs recorded in (30) can be played.

Then, after changing the execution mode to the play mode, the audio data of the first selected song is read from the memory 30 in units of blocks and decoded by the main controller 40.

The decoded voice signal is output through the magnetic generator 70 or the earphone output unit 60 switched by the mode switching switch 100. Then, the play mode progression state is output to the remote controller 80 when the remote controller 80 is selected and played on the display window 83.

If the operation mode is the F / F mode, the main controller 40 searches for the silent section from the memory 30, and if the silent section is searched, recognizes that one song is performed by the F / F mode.

When the silent section is searched, the number of the next song is first recognized so that the main controller 40 can recognize the next music played by the F / F mode. If the number of the song recognized by the main controller 40 matches the last number set in the initialization process (S220), the first song stored in the memory 30 is selected.

If it does not match, perform F / F mode while counting up the song number.

After the F / F mode is performed as described above, the main controller 40 reads and decodes the voice data of the selected song from the memory 30 in units of blocks.

Meanwhile, the decoded voice signal is output through the magnetic generator 70 or the earphone output unit 60 switched by the mode switching switch 100. Then, the progress state of the above-described F / F mode and play mode is transmitted to the remote controller 80 through the I / O control unit 50 when the remote controller 80 is selected.

In addition, the remote controller 80 displays the transmitted signal through the display window 83 so that the user can know.

If the operation mode is the REW mode, the method of performing the REW mode is the same as the F / F mode. However, if the voice data currently read from the memory 30 by the main controller 40 is not the first song, the song number is assigned. The REW mode is performed while down counting, and if it is the first time, it returns to the last time and selects a song stored in the memory 30.

Then, the voice data of the selected song is read in units of blocks from the memory 30 and decoded by the main controller 40.

Meanwhile, the decoded voice signal is output through the magnetic generator 70 or the earphone output unit 60 switched by the mode switching switch 100. Then, the progress state of the REW mode and the play mode described above is output to the remote controller 80 when the remote controller 80 is selected to display a play on the display window 83.

When the F / F mode or the REW mode described above is performed, the main controller 40 reads data in units of blocks from the memory 30 according to the MPEG audio method.

Lastly, when the operation mode and the execution mode are the same, when the operation mode is the play mode in the above-described process (S740), first, how much of the remaining songs of the song that is selected and played among the songs recorded in the memory 30 is left. To judge.

As a result of the determination, when there is less than a certain value, if there is no remaining block of the currently playing song, it is determined whether there is a song to play next. If it is determined that the next song is present, the song is played. If not, the first song is played.

If the operation mode is the F / F mode or the operation mode is the REW mode, the same application as described above will be omitted.

In this case, as described above, when the execution mode is the F / F mode or the REW mode, one scale may be applied to one tune so that a signal corresponding to the scale applied while the tune is in progress may be output.

That is, if eight songs are stored in the memory 30, when the user performs the F / F mode or the REW mode for the above-mentioned songs, the 'continuous' note in the scale is continuously maintained while the first song is in progress. Output it.

Meanwhile, while the next song is in progress, the 're' note is continuously output so that the user can easily know how many songs are currently in progress.

Here, the above-described process is sent to the remote controller 80 when the remote controller 80 is selected, and this part is the same as the case where the operation mode does not coincide with the execution mode, and a detailed description thereof will be omitted.

On the other hand, in the execution mode, the cassette tape deck has all the functions other than the above-described play mode, F / F mode, and REW mode.

7A and 7B are diagrams illustrating a state of use of the present invention. FIG. 7A illustrates an MPEG player used as a dedicated player for reproducing a compressed voice signal. When the earphone jack is connected to the earphone connector provided in the main body, the decoded voice signal is displayed. It is output through the earphone.

FIG. 7B illustrates that an MPEG player is mounted on a general audio device so that a compressed voice signal can be reproduced and listened through a speaker provided in the audio device.

Therefore, as described above, the present invention provides an MPEG player in the form of a cassette tape, and at the same time includes a magnetic generating unit to implement a cassette tape function, thereby reproducing and outputting compressed voice data through the MPEG player. .

In addition, the MPEG player can be inserted into a general audio device such as a cassette tape recorder or a cassette tape recorder provided in a vehicle, and the key buttons provided on the cassette tape recorder are operated to play, F / F, and REW functions. By implementing without any additional equipment, it is possible to listen to the voice compressed file in MP3 format anytime and anywhere.

Therefore, it provides an effect that allows the use of the MPEG exclusive player for various purposes.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

Claims (24)

A key input unit for receiving a key signal according to a user's operation; A remote information input unit for receiving a key signal from the remote user; An interface unit for receiving a compressed voice signal file from a PC; A memory for storing a compressed voice signal transmitted through the interface unit; Earphone output unit for outputting the voice signal decoded the compressed voice signal to the outside through the earphone when the single play mode is selected; A magnetic generating unit for generating a voice signal input from the outside as a magnetic signal when the cassette tape mode is selected, and being read by the head of the magnetic tape deck to be output to the outside; A driving wheel monitoring unit for detecting a rotation speed and a rotation direction of the driving wheel to recognize a key signal for controlling the MPEG player operation input by the user when the MPEG player is operated in the cassette tape mode; Outputs a control signal for controlling the operation of each function unit required for driving the MPEG player, reads and decodes compressed voice data stored in the memory according to a key input of the user, and then sets the earphone according to the user's mode selection A main controller for outputting to an output unit or the magnetic generator; And An input / output control unit for communication between the key input unit or the remote information input unit and the main control unit MPEG player consisting of a cassette tape shape, characterized in that consisting of. The method of claim 1, wherein the driving wheel monitoring unit, A drive wheel coupled to a pair of rods provided in the cassette deck; A belt coupled to the driving wheel to rotate the driving wheel when the one rod of the pair of rods rotates; And By checking the interlocking state of the pair of driving wheels by the belt, grasping the rotational state, the rotational speed and the rotational direction of the driving wheel, and transferring the same to the main control unit, the user's command through the cassette deck is reproduced, Sensing unit to determine if stop, rewind or fast forward MPEG player consisting of a cassette tape shape, characterized in that consisting of. The method of claim 1, wherein the driving wheel monitoring unit, A drive wheel coupled to a pair of rods provided in the cassette deck; A first belt coupled to the driving wheel to rotate the driving wheel to rotate with the remaining rods when one rod of the pair of rods rotates; A second belt provided separately from the first belt and interlocked with the first belt to rotate as the first belt rotates; A plurality of supports supporting the second belt so as to be interlocked with the first belt; A roller positioned between the plurality of supports and operated according to the rotation of the second belt; And By engaging the roller and checking the operation state of the second belt to determine whether the driving wheel is rotated, the rotational speed and the direction of rotation and transfer it to the main control, the user's command through the cassette deck is played, stopped Sensing unit to determine whether the device is rewinding, rewinding or fast-forwarding MPEG player consisting of a cassette tape shape, characterized in that consisting of. The method of claim 1, wherein the key input unit, MPEG player having a cassette tape shape MPEG player having a cassette tape shape, characterized in that the key input portion consisting of a plurality of buttons provided on the front panel. The method of claim 1, wherein the main control unit, When the MPEG player by the cassette deck operates in the fast forward mode or the rewind mode, one scale is applied to one song so that a signal corresponding to the scale applied while the song is in progress is output. MPEG player in the shape of a cassette tape. The method according to any one of claims 1 to 5, wherein the main control unit, An MPEG player having a cassette tape shape, characterized in that for setting the cassette tape mode or a single play mode by receiving a mode selection command of the user through the remote information input unit or the key input unit. The method according to any one of claims 1 to 5, wherein the main control unit, MPEG player in the shape of a cassette tape, characterized in that the playback according to the cassette tape mode or single play mode in accordance with the operation of the drive wheel through the drive wheel monitoring unit. (1) when the player is powered on, initializing the entire system and checking the input of the mode switching switch to set the initial mode to the previous mode; (2) checking the current mode by checking the input of the mode switching switch after setting the previous mode, and determining whether the checked current mode matches the previous mode; (3) if the current mode and the previous mode coincide, determining whether the current mode is a single play mode or a cassette tape mode and maintaining an operation mode determined according to the current mode; (4) detecting the rotational speed and the rotational direction of the drive wheel provided in the system in the cassette tape mode in step (3); (5) recognizing a stop signal when the rotation speed is equal to or slower than the stop speed; (6) recognizing as a play signal when the rotation speed is faster than the stop speed in (4), when the rotation speed is equal to or slower than the already set play speed; (7) determining the rotation direction of the driving wheel in the forward direction when the rotation speed is faster than the already set play speed in step (6), and recognizing it as the F / F signal in the forward direction; And (8) a method of controlling an MPEG player having a cassette tape function, characterized in that the process of recognizing a REW signal when the rotation direction is reverse in (7). 10. The method of claim 8, wherein if the operation mode is in the standby or stop state, the standby state is maintained until completion of execution, and if the operation mode is not in the standby or stop state, the operation mode is changed to the operation mode in response to the changed key signal. Control method of MPEG player having a cassette tape function, characterized in that further comprising the step of maintaining the standby state until completion of execution. 10. The apparatus of claim 8 or 9, wherein when the execution mode is a fast-forward mode or a rewind mode, one scale is applied to one song so that a signal corresponding to the scale applied while the song is in progress is output. A control method of an MPEG player having a cassette tape function, characterized in that. delete delete delete delete delete delete delete delete delete delete delete delete delete delete