Abstract:
Mobile communication terminals and methods are provided. A mobile communication terminal includes a transceiver, audio processing unit, speaker, connecting unit, display unit, input unit, and control unit. The control unit is configured to control to display, while in a silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control to reproduce the music file and to output audio signals corresponding thereto through the speaker, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, and output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control reproduction of a music file depending upon detection of a change of a connection state of an external audio output device.

Description:
PRIORITY 
       [0001]    This application is a continuation application of U.S. patent application Ser. No. 14/243,343 filed Apr. 2, 2014 in the U.S. Patent and Trademark Office, which issued as U.S. Pat. No. 8,903,463 on Dec. 2, 2014; which is a continuation application of U.S. patent application Ser. No. 13/770,868 filed Feb. 19, 2013 in the U.S. Patent and Trademark Office, which issued as U.S. Pat. No. 8,880,130 on Nov. 4, 2014; which is a continuation application of U.S. patent application Ser. No. 13/738,758 filed Jan. 10, 2013 in the U.S. Patent and Trademark Office, which issued as U.S. Pat. No. 8,463,336 on Jun. 11, 2013; which is a continuation application of U.S. patent application Ser. No. 11/395,255 filed Apr. 3, 2006 in the U.S. Patent and Trademark Office, which issued as U.S. Pat. No. 8,380,260 on Feb. 19, 2013, and which claimed the benefit of Korean Patent Applications No. 10-2005-0027533 and 10-2006-0020900, filed on Apr. 1, 2005 and Mar. 6, 2006, in the Korean Intellectual Property Office; the disclosure of each of which is incorporated herein in its entirety by reference. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates to a mobile communication terminal. More particularly, the present invention relates to a mobile communication terminal and a method for reproducing a music file during the manner mode of the mobile communication terminal 
         [0004]    2. Description of the Related Art 
         [0005]    In general, a mobile communication terminals refers to a device which permits talking or exchanging data for communication while a user is moving, such as a cellular phone, a Personal Digital Assistant (PDA), a Personal Communication Services Phone (PCS), an International Mobile Telecommunication-2000 (IMT-2000) terminal, a Global System for Mobile Communication (GSM) terminal, and the like. 
         [0006]    Portable communication devices have become popular, and are recognized by some people as a nearly indispensable commodity which should be carried all the time. Therefore, in order to facilitate portability, designs of such portable communication devices tend not only to be compact, slim and light, but be also moving toward providing multimedia availability, and having a wider variety of functions. In particular, future portable communication devices are expected to incorporate greater multi-functionality and be capable of multi-purpose utilization, as well as being more compact, light, and capable of being modified to be suitable for various multimedia or Internet environments. 
         [0007]    On the other hand, mobile communication terminals provide additional function services such as the short message transmitting/receiving function, the memory function for storing and searching for telephone numbers, the locking function, the alarm function, the background screen setting function, the local number confirmation function, as well as the talking function. Further, recent communication terminals provide the camera function, the digital broadcasting function, the game function, and the music reproducing function, such as the MPEG Audio layer-3 (MP3) file reproducing function. 
         [0008]    Mobile communication terminals, hence, provide much convenience to users through the various additional services. 
         [0009]    Especially, among the additional services of the mobile communication terminals, the music file reproducing function permits reproduction of music files stored in the mobile communication terminals, MP3 files to be downloaded from separate devices, or the like, and then the output of these files through a speaker. Therefore, a user can listen to the selected music through the speaker embedded in a mobile communication terminal, a separate exterior speaker, or an earphone. 
         [0010]    However, conventional mobile communication terminals cannot reproduce music files during the manner mode, such as silent mode, in which signal reception is output without sound or by vibration, in other words, with a vibration alert of an incoming call. Therefore, in order to listen to music through a conventional mobile communication terminal during the manner mode, a user should release and convert the manner mode to the music file reproducing mode. 
       SUMMARY OF THE INVENTION 
       [0011]    Accordingly, the present invention has been made to address the above-mentioned problems, and an aspect of the present invention is to provide a mobile communication terminal and a method for reproducing a music file during the manner mode of the mobile communication terminal. 
         [0012]    Another aspect of the present invention is to provide a mobile communication terminal and a music file reproduction method which can allow a user to conveniently reproduce the music file. 
         [0013]    In order to accomplish these aspects, a mobile communication terminal is provided. The mobile communication terminal includes a transceiver for transmitting an outgoing call and for receiving an incoming call, an audio processing unit, a speaker, a connecting unit for being connected to an external audio output device, a display unit for displaying a screen, an input unit for receiving a user input, and a control unit. The control unit is configured to control the display unit to display, while in a silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control the audio processing unit to reproduce the music file and to output audio signals corresponding to the reproduced music file through the speaker, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, and output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control reproduction of a music file depending upon detection of a change of a connection state of the external audio output device with the connecting unit. 
         [0014]    In addition, a mobile communication terminal which is capable of being set to a silent mode in which sound alerts of the mobile communication terminal in response to receiving an incoming call are disabled, is provided. The mobile communication terminal includes a transceiver for transmitting an outgoing call and for receiving an incoming call, an audio processing unit, a speaker, a connecting unit for being connected to an external audio output device, a touch display unit for receiving a user input, and a control unit. The control unit is configured to control the touch display unit to display, while in the silent mode, a user interface for playback of a music file, in response to a user input while in the silent mode, control the audio processing unit to play the music file so as to output audio signals through the speaker, in response to receiving an incoming call in the silent mode, stop playing a music file, in response to receiving the incoming call in the silent mode, output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control playing a music file depending upon detection of a change of a connection state of the external audio output device with the connecting unit. 
         [0015]    Further, a mobile communication terminal which is capable of being set to a silent mode in which sound alerts of the mobile communication terminal in response to receiving an incoming call are disabled, is provided. The mobile communication terminal includes a transceiver for transmitting an outgoing call and for receiving an incoming call, an audio processing unit, a speaker, a connecting unit for being connected to an external audio output device, a display unit, and a control unit. The control unit is configured to control the display unit to display, while in the silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control the audio processing unit to reproduce the music file so as to output audio signals corresponding to the reproduced music file through the speaker while remaining in the silent mode, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, and in response to receiving the incoming call in the silent mode, output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode. 
         [0016]    Still further, a mobile communication terminal is provided. The mobile communication terminal includes a transceiver for transmitting an outgoing call and for receiving an incoming call, an audio processing unit, a connecting unit for being connected to an external audio output device, a display unit, and a control unit. The a control unit is configured to control the display unit to display, while in a silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control the audio processing unit to reproduce the music file so as to output audio signals corresponding to the reproduced music file through the external audio output device while remaining in the silent mode, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, in response to receiving the incoming call in the silent mode, output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control reproduction of a music file depending upon detection of a change of a connection state of the external audio output device with the connecting unit. 
         [0017]    Additionally, a method of a mobile communication terminal is provided. The method includes displaying on a display unit of the mobile communication terminal, while the mobile communication terminal is in a silent mode, a user interface for reproduction of a music file on the display unit of the mobile communication terminal, in response to a user input via an input unit while the mobile communication terminal is in the silent mode, reproducing the music file and outputting audio signals corresponding to the reproduced music file through a speaker of the mobile communication terminal, in response to receiving an incoming call while the mobile communication terminal is in the silent mode, stopping reproduction of a music file, and outputting an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while the mobile communication terminal is in the silent mode, controlling reproduction of a music file depending upon detection of a change of a connection state of an external audio output device with a connecting unit of the mobile communication terminal. 
         [0018]    Moreover, a method of a mobile communication terminal which is capable of being set to a silent mode in which sound alerts of the mobile communication terminal in response to receiving an incoming call are disabled, is provided. The method includes displaying on a display unit of the mobile communication terminal, while the mobile communication terminal is in the silent mode, a user interface for reproduction of a music file on the display unit of the mobile communication terminal, in response to a user input while the mobile communication terminal is in the silent mode, playing the music file so as to output audio signals corresponding to the music file being played through a speaker of the mobile communication terminal, in response to receiving an incoming call while the mobile communication terminal is in the silent mode, stopping playing a music file, in response to receiving the incoming call while the mobile communication terminal is in the silent mode, outputting an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while the mobile communication terminal is in the silent mode, controlling playing a music file depending upon detection of a change of a connection state of an external audio output device with a connecting unit of the mobile communication terminal. 
         [0019]    Furthermore, a method of a mobile communication terminal which is capable of being set to a silent mode in which sound alerts of the mobile communication terminal in response to receiving an incoming call are disabled, is provided. The method includes displaying on a display unit of the mobile communication terminal, while the mobile communication terminal is in the silent mode, a user interface for reproduction of a music file on the display unit of the mobile communication terminal, in response to a user input while the mobile communication terminal is in the silent mode, reproducing the music file so as to output audio signals corresponding to the reproduced music file through a speaker of the mobile communication terminal while the mobile communication terminal remains in the silent mode, in response to receiving an incoming call while the mobile communication terminal is in the silent mode, stopping reproduction of a music file, and in response to receiving the incoming call while the mobile communication terminal is in the silent mode, outputting an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode. 
         [0020]    Also, a method of a mobile communication terminal is provided. The method includes displaying on a display unit of the mobile communication terminal, while the mobile communication terminal is in a silent mode, a user interface for reproduction of a music file on the display unit of the mobile communication terminal, in response to a user input while the mobile communication terminal is in the silent mode, reproducing the music file so as to output audio signals corresponding to the reproduced music file through an external audio output device while the mobile communication terminal remains in the silent mode, in response to receiving an incoming call while the mobile communication terminal is in the silent mode, stopping reproduction of a music file, in response to receiving the incoming call while the mobile communication terminal is in the silent mode, outputting an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while the mobile communication terminal is in the silent mode, controlling reproduction of a music file depending upon detection of a change of a connection state of the external audio output device with a connecting unit of the mobile communication terminal. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0021]    The above and other aspects, features, and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: 
           [0022]      FIG. 1  is a view for showing a mobile communication terminal and an external output device according to an exemplary embodiment of present invention and an earphone; 
           [0023]      FIG. 2  is a block diagram of a mobile communication terminal according to an exemplary embodiment of the present invention; 
           [0024]      FIGS. 3A and 3B  are flowcharts for explaining a music file reproducing process of a mobile communication terminal according to an exemplary embodiment of the present invention; 
           [0025]      FIGS. 4A and 4B  are exemplary views for explaining the operation of a mobile communication terminal according to an exemplary embodiment of the present invention; 
           [0026]      FIG. 5  is a flow chart for explaining a music file reproducing process of a mobile communication terminal according to an exemplary embodiment of the present invention; and 
           [0027]      FIGS. 6A and 6B  are exemplary views for explaining the operation of a mobile communication terminal according to an exemplary embodiment of the present invention. 
       
    
    
       [0028]    Throughout the drawings, like reference numerals will be understood to refer to like parts, components and structures. 
       DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS 
       [0029]    Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein is omitted for clarity and conciseness. 
         [0030]      FIG. 1  is a view for showing a mobile communication terminal and an external output device (that is, an ear phone) according to an exemplary embodiment of present invention. Although the ear phone is shown in  FIG. 1  as the external output device, the external output device may comprise a speaker or a wireless headset. 
         [0031]    Referring to  FIG. 1 , the mobile communication terminal  100  comprises a jack connecting unit  145  to which a jack  220  of the earphone  200  is connected, and a user connects the earphone  220  to the mobile communication terminal  100  by inserting a jack  220  of the earphone  200  into the jack connecting unit  145 . Meanwhile, the mobile communication terminal  100  may comprise a short range wireless communication unit, such as an IrDA wireless communication unit or a Bluetooth communication unit. 
         [0032]    Therefore, a user can listen to a music file, for example, an MPEG Audio layer-3 (MP3) file, reproduced by the mobile communication terminal  100  through the earphone  200  connected to the mobile communication terminal  100 . Although not shown in the figure, keys required for reproduction of music files can be provided in the earphone  200 . 
         [0033]      FIG. 2  is a block diagram of a mobile communication terminal according to an exemplary embodiment of the present invention. 
         [0034]    The mobile communication terminal  100  comprises a radio transceiver  110 , a modem  120 , an audio processing unit  130 , a key input unit  140 , a jack connecting unit  145 , a memory  150 , a control unit  160 , a camera module  170 , an image processing unit  180 , and a display unit  190 . In addition, the mobile communication terminal  100  can further comprise a short range wireless communication unit, such as a Bluetooth communication unit, for the purpose of wireless connection with the external output device. 
         [0035]    Referring to  FIGS. 1 and 2 , the radio transceiver  110  transmits and receives voice data, letter data, image data, and control data, under the control of the control unit  160 . The radio transceiver  110  comprises a RF transmitter for raising and amplifying the frequencies of transmitted signals and a RF receiver for amplifying received signals with low noise and lowering the frequencies. 
         [0036]    The modem  120  comprises a transmitter for encoding and modulating the transmitted signals and a receiver for decoding and demodulating the received signals. 
         [0037]    The audio processing unit  130  modulates the electrical signals input from a microphone and converts them to voice data, and demodulates the encoded voice data input from the radio transceiver  110  into electrical signals and outputs them to a speaker. Further, it is preferable that the audio processing unit  130  comprises a codec to convert the digital audio signals received by the radio transceiver  110  to analog signals and then reproduce them or to convert the analog audio signals generated in the microphone to digital audio signals. The codec comprises a data codec for processing packet data and an audio codec for processing audio signals such as voices. The codec can be provided in the control unit  160 . 
         [0038]    The audio processing unit  130  outputs the audio signals of the music file reproduced in the mobile communication terminal  100  to the earphone  200  when the earphone  200  is connected to the mobile communication terminal  100  through a wireless or a wired manner. 
         [0039]    The key input unit  140  has a key matrix structure (not shown), and comprises letter keys, number keys, function keys, and exterior volume keys to output the key input signals corresponding to the keys input by a user to the control unit  160 . The key input unit  140  can separately comprise keys, for example, reproduction keys, for reproducing the music file, and can embody one of the keys provided in the key input unit  140  by the keys for reproduction of the music file. 
         [0040]    The jack connecting unit  145  is a connecting terminal for connecting the earphone  200  to the mobile communication terminal  100  through a wired manner, and if the jack  220  of the earphone  200  is inserted into the mobile communication terminal  100 , the detected signal is transferred to the control unit  160 . Further, the jack connecting unit  145  outputs the audio signals of the music file to the earphone  200 , if the music file, for example, MP3 file, is reproduced in the mobile communication terminal  100 , with the jack  220  of the earphone  200  inserted into the mobile communication terminal  100 . 
         [0041]    The memory  150  can comprise a program memory and a data memory, and stores selected information on the basis of the information required for controlling the operation of the mobile communication terminal  100  according to an exemplary embodiment of the present invention and the user selecting information. In other words, the memory  150  comprises a Read Only Memory (ROM) for storing the management algorithm accessed through the control unit  160  for the overall operation of the mobile communication terminal  100  and a Random Access Memory (RAM) for storing data according to control instructions in a data processing step of the control unit  130 . Further, the memory stores various music files required for reproduction of music file. 
         [0042]    The control unit  160  controls the overall operation of the mobile communication terminal according to an exemplary embodiment of the present invention. The control unit  160  controls the mobile communication terminal to reproduce the music file if the reproduction of the music files is requested by the user during the manner mode in which signal reception is output without sound or by vibration in the case in which the signal is received by the mobile communication terminal  100 . The user can request the reproduction of music files by inputting keys or connecting the external output device to the mobile communication terminal. 
         [0043]    For instance, if the external output device is connected to the mobile communication terminal during the manner mode, the control unit  160  directs the mobile communication terminal to reproduce the music file. In addition, the control unit  160  can output a confirmation message for determining the reproduction of the music files when the external output device is connected to the mobile communication terminal. When the music file reproduction is requested by a user, the confirmation message informs the user that the mobile communication terminal  100  is in the manner mode and enables the user to confirm the reproduction of the music file during the manner mode. The confirmation message can be output through the audio processing unit  130 , and can be output in a letter message through the display unit  190 . 
         [0044]    After outputting the confirmation message, the control unit  160  determines that the user has confirmed the output confirmation message if the external output device, such as the earphone or the speaker, is connected to the mobile communication terminal and directs the mobile communication terminal to reproduce the music files selected by the user. The control unit  160  can control the mobile communication terminal such that the mobile communication terminal may reproduce the music file only when the user requests it in a state in which the external output device is connected to the mobile communication terminal. 
         [0045]    In addition, after outputting the confirmation message, the control unit  160  can determine that the user has confirmed the output confirmation message if a predetermined key of the key input unit  140  is input and then can direct the mobile communication terminal to reproduce the music files selected by the user. The predetermined key can be a confirmation key provided in the key inputting unit  140  and can be a key provided for the reproduction of the music files. 
         [0046]    On the other hand, it is preferable if the control unit  160  outputs a message inquiring termination of the music file reproduction when the external output device is disconnected from the mobile communication terminal  100 . In this case, if the user who has confirmed the message requests the termination of the music file reproduction, the control unit  160  directs the mobile communication terminal  100  to terminate the music file reproduction. 
         [0047]    The camera module  170  can comprise a lens unit (not shown) which can be inserted and withdrawn, and photographs image data. Further, the camera module  170  comprises a camera sensor (not shown) for converting the photographed optical signals into electrical signals and a signal processing unit (not shown) for converting the analog image signals photographed by the camera sensor to digital data. 
         [0048]    Here, the camera sensor is assumed to be a Charge Coupled Device (CCD) sensor, and the signal processing unit can be embodied with a Digital Signal Processor (DSP). The camera sensor and the signal processing unit can be embodied integrally or separately. 
         [0049]    The image processing unit  180  generates screen data for displaying the image signals output in the camera module  170 . 
         [0050]    The image processing unit  180  processes the image signals output in the camera module  170  in frame unit and outputs the frame image data according to the characteristics and size of the display unit  190 . Further, the image processing unit  180  comprises an image codec. The image processing unit  180  compresses the frame image data displayed in the display unit  190  or restores the compressed frame image data to the original frame image data. 
         [0051]    Further, the image processing unit  180  is assumed to have the On Screen Display (OSD) function and can output OSD data according to the size of the screen displayed under the control of the control unit  160 . 
         [0052]    The display unit  190  can comprise a Liquid Crystal Display (LCD) and the like and outputs display data generated in the mobile communication terminal. Then, if the LCD is embodied in touch screen type, the display unit  190  can be used as an input unit. 
         [0053]    Further, the display unit  190  displays image signals output in the image processing unit  180  and displays user data output in the control unit  160 . 
         [0054]    On the other hand, according to the present invention, a player device for reproducing music files can be separately embedded in the mobile communication terminal  100 . 
         [0055]      FIGS. 3A and 3B  are flow charts for explaining the music file reproducing process of the mobile communication terminal according to an exemplary embodiment of the present invention. 
         [0056]    Referring to  FIGS. 1 to 3A , the control unit  160  converts the signal reception sound output mode of the mobile communication terminal  100  to the manner mode on the basis of the user&#39;s request and performs the corresponding operation at step S 110 A. 
         [0057]    The control unit  160  examines whether the reproduction of music files, for example, MP3 files, is requested by a user during the manner mode of the mobile communication terminal  100  at step S 120 A. 
         [0058]    If the reproduction of the music files are requested by the user, the control unit  160  starts the music file reproduction mode, for example, MP3 reproduction mode, of the mobile communication terminal  100  and outputs a confirmation message for determining whether the music files are to be reproduced or not during the manner mode at step S 130 A. The confirmation message informs the user that the mobile communication terminal  100  is performing the manner mode when the reproduction of the music files is requested by the user, and enables the user to confirm whether the music files are to be reproduced or not during the manner mode of the mobile communication terminal  100 . The confirmation message is output in a voice message through the audio processing unit  130  or in a letter message through the display unit  190 . 
         [0059]    The control unit  160  determines whether the external output device is connected to the mobile communication terminal  100  at step S 140 A. The external output device may comprise an earphone or a speaker and the mobile communication terminal  100  can be connected to the external output device through a wireless or a wired manner. Referring to  FIG. 1 , the control unit  160  determines whether the earphone  200 , that is, the earphone jack  220  is inserted into the jack connecting unit  145 . 
         [0060]    The control unit  160  determines that the output confirmation message is confirmed by the user if the external output device is connected to the mobile communication terminal  100  (that is, if the earphone jack  220  is inserted into the jack connecting unit  145 ) at step S 150 A. Then, the control unit  160  reproduces the music files selected by the user at step S 160 A. The audio signals of the reproduced music files are output through the external output device. Meanwhile, the control unit  160  can control the mobile communication terminal  100  such that the mobile communication terminal  100  may reproduce the music file only when the user requests it in a state in which the external output device is connected to the mobile communication terminal  100 . 
         [0061]    The control unit  160  determines whether the external output device is disconnected from the mobile communication terminal  100  during the reproduction of the music files at step S 170 A. For instance, if the earphone is connected to the mobile communication terminal  100 , the control unit  160  determines whether the earphone jack  220  is disconnected from the mobile communication terminal  100 . 
         [0062]    If the external output device is disconnected from the mobile communication terminal  100 , the control unit  160  outputs a message for inquiring the user whether reproduction of the music files is to be continued at step S 180 A. 
         [0063]    Then, the control unit  160  determines whether a confirmation key is input at step S 190 A. If the confirmation key is input, the control unit  160  determines that the user wants to end the reproduction of the music files, so the control unit  160  ends the reproduction of the music files at step S 195 A. 
         [0064]    On the other hand, if incoming call signals are received during the reproduction of the music files, it is preferable that the control unit  160  stops the reproduction of the music files and outputs an indication of the reception of the incoming call signals by vibration or without sound according to the set manner mode. 
         [0065]    It should be noted that although an exemplary embodiment of the present invention exemplifies the case in which an earphone jack  220  is connected to the mobile communication terminal  100 , the process of  FIG. 3A  can be applied to the case in which a jack of an exterior speaker is connected to the mobile communication terminal  100  in a wireless manner. 
         [0066]    Referring to  FIGS. 1 ,  2 , and  3 B, the control unit  160  converts the signal reception sound output mode of the mobile communication terminal  100  to the manner mode on the basis of the user&#39;s request and performs the corresponding operation at step S 110 B. 
         [0067]    The control unit  160  examines whether the reproduction of music files, for example, MP3 files, is requested by a user during the manner mode of the mobile communication terminal  100  at step S 120 B. 
         [0068]    If the reproduction of the music files are requested by the user, the control unit  160  starts the music file reproduction mode, for example, MP3 reproduction mode, of the mobile communication terminal  100  and outputs a confirmation message for determining whether the music files are to be reproduced or not during the manner mode at step S 130 B. The confirmation message informs the user that the mobile communication terminal  100  is performing the manner mode when the reproduction of the music files is requested by the user, and enables the user to confirm whether the music files are to be reproduced or not during the manner mode of the mobile communication terminal  100 . The confirmation message is output in a voice message through the audio processing unit  130  or in a letter message through the display unit  190 . 
         [0069]    The control unit  160  determines whether the external output device is connected to the mobile communication terminal  100  at step S 140 B. The external output device may comprise an earphone or a speaker and the mobile communication terminal  100  can be connected to the external output device through a wireless or a wired manner. Referring to  FIG. 1 , the control unit  160  determines whether the earphone  200 , that is, the earphone jack  220  is inserted into the jack connecting unit  145 . 
         [0070]    The control unit  160  determines whether the external output device is disconnected from the mobile communication terminal  100  during the reproduction of the music files at step S 170 B. For instance, if the earphone is connected to the mobile communication terminal  100 , the control unit  160  determines whether the earphone jack  220  is disconnected from the mobile communication terminal  100 . 
         [0071]    If the external output device is disconnected from the mobile communication terminal  100 , the control unit  160  outputs a message for inquiring the user whether reproduction of the music files is to be continued at step S 180 B. 
         [0072]    The control unit  160  repeats the process of  FIG. 3B  until the completion of the music file reproduction mode is requested by the user, and the music file reproduction mode is completed if the completion of the music file reproduction mode is requested by the user. On the other hand, if signals are received during the reproduction of the music files, it is preferable that the control unit  160  stops the reproduction of the music files and outputs the reception of the signals by vibration or without sound according to the set manner mode. 
         [0073]    It should be noted that although the first preferred embodiment of the present invention exemplifies the case in which an earphone jack  220  is connected to the mobile communication terminal  100 , the process of  FIG. 3B  can be applied to the case in which a jack of an exterior speaker is connected to the mobile communication terminal  100  in a wireless manner. 
         [0074]      FIGS. 4A and 4B  are exemplary views for explaining the operation of the mobile communication terminal according to an exemplary embodiment of the present invention. 
         [0075]      FIG. 4A  shows the mobile communication terminal  100  and the earphone  200  to explain the operation of the mobile communication terminal  100  according to an exemplary embodiment of the present invention. 
         [0076]    Referring to  FIG. 4A , the earphone jack  220  is not inserted into the jack connecting unit  145  of the mobile communication terminal  100 , and the confirmation message for determining whether the music files are to be reproduced or not in response to the request for the reproduction of the music files during the manner mode is being output on the screen. 
         [0077]    In the state of  FIG. 4A , if the earphone jack  220  is inserted into the jack connecting unit  145  by the user, the mobile communication terminal  100  determines that the output confirmation message is confirmed by the user and outputs the music files selected by the user through the earphone  200  as shown in  FIG. 4B . 
         [0078]      FIG. 5  is a flow chart for explaining a music file reproducing process of a mobile communication terminal according to an exemplary embodiment of the present invention. 
         [0079]    Hereinafter,  FIG. 5  will be explained with reference to  FIGS. 1 and 2 . 
         [0080]    The control unit  160  converts the signal receiving sound output mode to the manner mode on the basis of a request from a user and performs the corresponding operation at step S 210 . 
         [0081]    The control unit  160  examines whether the reproduction of the music files, for example, MP3 files, is requested by the user during the manner mode of the mobile communication terminal  100  at step S 220 . 
         [0082]    If the reproduction of the music files is requested by the user, after starting the music file reproduction mode, for example, MP3 reproduction mode, of the mobile communication terminal  100 , the control unit  160  outputs the confirmation message for determining whether the music files are to be reproduced or not when performing the manner mode at step S 230 . The confirmation message informs the user that the mobile communication terminal  100  is performing the manner mode when the reproduction of the music files is requested by the user, and enables the user to confirm whether the music files are to be reproduced or not during the manner mode of the mobile communication terminal  100 . The confirmation message is output in a voice message through the audio processing unit  130  or in a letter message through the display unit  190 . 
         [0083]    If a predetermined key, for example, confirmation key, is input at step S 240 , the control unit  160  determines that the user confirmed the output confirmation message at step S 250 . It is preferable that the predetermined key is the confirmation key provided in the key input unit  140 . Further, the predetermined key can be a key provided or embodied for the reproduction of the music files. 
         [0084]    If the confirmation message is determined to be confirmed by the user, the control unit  160  reproduces the music files selected by the user at step S 260 . The audio signals of the reproduced music files are output through the speaker of the audio processing unit  130 . 
         [0085]    On the other hand, in the case where incoming call signals are received during the reproduction of the music files, it is preferable that the control unit  160  stops the reproduction of the music files and outputs an indication of the reception of the incoming call signal without sound or by vibration according to the set manner mode. 
         [0086]      FIGS. 6A and 6B  are exemplary views for explaining the operation of the mobile communication terminal according to an exemplary embodiment of the present invention. 
         [0087]      FIG. 6A  shows a screen outputting the confirmation message for determining whether the music files are to be reproduced or not in response to the reproduction request of the music files during the manner mode of the mobile communication terminal  100 . 
         [0088]    If a user inputs a key or a confirmation key for the reproduction of the music files in the state of  FIG. 6A , the mobile communication terminal determines that the user confirmed the confirmation message or that the music files can be reproduced, and reproduces the music files selected by the user together with the music file reproduction screen as shown in  FIG. 6B . 
         [0089]    According to exemplary embodiments of the present invention, a user can reproduce and listen to music files without any complex key manipulation even during the manner mode of the mobile communication terminal. 
         [0090]    While the invention has been shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. 
         [0091]    According to the present invention, since a user can reproduce music files without any complex key manipulation even during the manner mode of the mobile communication terminal, the user can listen to wanted music easily, thereby improving the convenience of the mobile communication terminal.