Abstract:
A mobile communication terminal and method of controlling a volume thereof are disclosed, by which the volume of the mobile communication terminal can be controlled in case of entering a specific mode while a manner mode is set. The present invention includes entering a specific mode for outputting an audio signal while a manner mode is set, selecting a presence or non-presence of an output of the audio signal, and terminating the specific mode, wherein the manner mode is maintained in case of terminating the specific mode.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     Pursuant to 35 U.S.C. §119(a), this application claims the benefit of earlier filing date and right of priority to Korean Application No. 10-2007-0037873, filed on Apr. 18, 2007, the contents of which are hereby incorporated by reference herein in its entirety. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a mobile communication terminal, and more particularly, to a mobile communication terminal and method of controlling a volume thereof. 
     2. Discussion of the Related Art 
     Generally, a mobile communication terminal moves around within a mobile communication service area to provide a method of communication with other communication terminals. 
     The mobile communication terminal is provided with a function for setting a quiet mode. For example, a quiet mode may provide notification of various events through a method that is different from outputting an audio signal. 
     The related art mobile communication terminal indiscriminately sets the volume of an audio signal to zero when a quiet mode is set on the mobile communication terminal. Thus, the related art mobile communication terminal is unable to control the audio signal volume when the quiet mode is set. 
     SUMMARY OF THE INVENTION 
     Features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. 
     In accordance with an embodiment, a method of controlling a volume in a mobile communication terminal includes enabling a specific mode which outputs an audio signal while the mobile communication terminal is in a quiet mode, enabling or disabling output of the audio signal, and terminating the specific mode, wherein the mobile communication terminal remains in the quiet mode after the specific mode has been terminated 
     In accordance with an embodiment, a method of controlling a volume in a mobile communication terminal includes enabling a specific mode which outputs an audio signal while the mobile communication terminal is in a quiet mode, enabling or disabling output of the audio signal, and terminating the specific mode, wherein the mobile communication terminal remains in the quiet mode after the specific mode has been terminated. 
     In one feature, the specific mode includes at least one of a broadcast play mode, a music play mode, a moving picture player mode, a bell sound setting mode, a sound effect generating mode, a time alarming mode, and a game mode. In another feature, the method for enabling or disabling output of the audio signal includes displaying an interface for enabling or disabling output of the audio signal after the specific mode is enabled. In yet another feature an initial volume of the audio signal is a previous setting of an audio signal volume or a preset volume when the output of the audio signal is enabled. 
     In one embodiment, a method of controlling a volume in a mobile communication terminal, includes enabling a specific mode such that an audio signal is output while the mobile communication terminal is in a quiet mode, selecting a quiet mode option, wherein the quiet mode option comprises one of fully disabling the quiet mode, partially disabling the quiet mode, and maintaining the quiet mode, controlling the volume of the audio signal according to on the quiet mode option, and terminating the specific mode, wherein the quiet mode is controlled according to the quiet mode option selected. 
     In accordance to another embodiment, a mobile communication terminal includes an input unit for enabling a specific mode and enabling or disabling an output of an audio signal when the specific mode is enabled, a control unit, for receiving an input signal from the input unit while a quiet mode is enabled, and controlling an interface for enabling or disabling the output of the audio signal and controlling the state of the quiet mode after the specific mode has been terminated, a display unit displaying an interface for enabling or disabling the output of the audio signal in response to a control command of the control unit, an audio output unit outputting the audio signal if the output of the audio signal is enabled. 
     In accordance to yet another embodiment, a mobile communication terminal includes an input unit for enabling a specific mode and selecting a quiet mode option, wherein the quiet mode option comprises one of fully disabling a quiet mode, partially disabling the quiet mode, and maintaining the quiet mode if the specific mode is enabled, a control unit, for receiving an input signal from the input unit while a quiet mode is enabled and controlling a volume of an audio signal according to the quiet mode option, and an audio output unit outputting the audio signal if the quiet mode is fully disabled or partially disabled when the specific mode is enabled. 
     These and other embodiments will also become readily apparent to those skilled in the art from the following detailed description of the embodiments having reference to the attached figures, the invention not being limited to any particular embodiment disclosed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features, and advantages of the present invention will become more apparent upon consideration of the following description of preferred embodiments, taken in conjunction with the accompanying drawing figures, wherein: 
         FIG. 1  is a block diagram of a mobile communication terminal according to one embodiment of the present invention. 
         FIG. 2  is a flowchart of a method of controlling volume in a mobile communication terminal according to one embodiment of the present invention. 
         FIG. 3  is a block diagram of a concept for one embodiment of the mobile communication terminal volume controlling method shown in  FIG. 2 . 
         FIG. 4  is a flowchart of a method of controlling volume in a mobile communication terminal according to another embodiment of the present invention. 
         FIG. 5  is a block diagram of a concept for one embodiment of the mobile communication terminal volume controlling method shown in  FIG. 4 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     In the following detailed description, reference is made to the accompanying drawing figures which form a part hereof, and which show by way of illustration specific embodiments of the invention. It is to be understood by those of ordinary skill in this technological field that other embodiments may be utilized, and structural, electrical, as well as procedural changes may be made without departing from the scope of the present invention. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or similar parts. 
     A mobile communication terminal and method of controlling a volume thereof are explained with reference to the attached drawings as follows. 
       FIG. 1  is a block diagram of a mobile communication terminal according to one embodiment of the present invention. 
     Referring to  FIG. 1 , a mobile communication terminal  100  may include a control unit  110 , a wireless communication unit  120 , an audio output unit  130 , a display unit  140 , a storage unit  150 , and an input unit  160 . 
     The term, ‘quiet mode’ means a mode for notifying a user of various events of the mobile communication terminal via a means different from an audio output during circumstances that require silence. For example, an audio output may be replaced by a vibration or a flickering of a light to notify a user of an event. 
     The input unit  160  may include, for example a keypad, a touch pad, or a touchscreen. In particular, if the input unit  160  includes a touchscreen, a user may manipulate the input unit  160  by touching the display unit  140 . In one embodiment, an input unit  160  may include a hot key for facilitation of key signal manipulation 
     According to one embodiment of the present invention, for the convenience of enabling or disabling the output of the audio signal, a control unit  110  may display, on a display unit  140 , an item for enabling or disabling an output of an audio signal after a specific mode is enabled. This will be explained in detail with reference to  FIG. 4 . 
       FIG. 2  is a flowchart of a method of controlling a volume in a mobile communication terminal  100  according to one embodiment of the present invention. 
     A mobile communication terminal  100  is able to enter a specific mode while a quiet mode is set. Block S 10  controls the quiet mode setting and block S 20  enters a specific mode. Block S 30  determines whether an audio signal output has been selected. Block S 40  reproduces an audio signal and block S 70  does not output an audio signal. Block S 50  terminates the specific mode. Block S 60  determines whether to maintain the quiet mode. 
     The term “specific mode” means a mode for performing a specific function while an audio signal is reproduced. 
     If desired, a specific mode may be enabled after the quiet mode is enabled in a mobile communication terminal. 
     A specific mode may be selected by manipulating input unit  160 . Examples of a specific mode are: a broadcast play mode, a music play mode, a moving picture player mode, a bell sound setting mode, a sound effect generating mode, a time alarming mode, and a game mode 
     An audio signal may be reproduced in various ways while the specific mode is set. For example, in one embodiment, while the specific mode is set to a broadcast play mode, a broadcast signal received via the wireless communication unit  120  is decoded to reproduce an audio signal. In this embodiment, audio data included in the broadcast signal may be output via the audio output unit  130 . 
     In an alternate embodiment, a specific mode may be set to a moving picture/bell sound play mode, wherein an audio signal may be reproduced by outputting a moving picture and a bell sound stored in the storage unit  150 . The moving picture or bell sound includes audio data that may be output via the audio output unit  130 . 
     If a specific mode is enabled while a quiet mode is set, the user may be able to enable or disable an output of an audio signal (S 30 ). In one embodiment, enabling or disabling the output of an audio signal means a selection for whether or not to reproduce an audio signal during the execution of an event in a specific mode. The selection to enable or disable may be performed through a key manipulation of the input unit  160 . 
     If the output of an audio signal is selected in step S 30 , control unit  110  may reproduce an audio signal while a specific mode is executed (S 40 ). The audio signal may be reproduced via the audio output unit  130 . The volume of the audio signal may be the most recent volume setting used by the audio output unit  130  or a preset audio signal volume. When the specific mode ends via the step S 50 , the control unit  110  may maintain the quiet mode status (S 60 ). 
     If an output of an audio signal is not selected in step S 30 , control unit  110  may execute a specific mode without reproducing an audio signal (S 70 ). 
     The control unit  110  may maintain the quiet mode status (S 60 ) when specific mode ends via the step (S 50 ). 
     A method of controlling a volume of a mobile communication terminal when a broadcast mode is enabled is explained as follows. 
       FIG. 3  shows an example of the method shown in  FIG. 2 , and more particularly, a method of controlling a volume in a mobile communication terminal when a broadcast mode is enabled. 
     If desired, when a broadcast mode is enabled while a quiet mode is set, an interface for enabling or disabling an audio reproduction may be displayed. If an output of an audio signal is enabled, the quiet mode is temporarily disabled, such that a broadcast is reproduced while an audio signal is output in correspondence to a previous volume setting. When the broadcast is terminated, the mobile communication terminal may remain in a quiet mode. 
     Alternatively, if a broadcast mode is disabled, audio reproduction is disabled and the mobile communication terminal remains in a quiet mode. However, video signal reproduction may still be carried out via the display unit  140  even if the broadcast mode is disabled. As described above, when a broadcast is terminated, the mobile communication terminal  100  may remain in a quiet mode. 
       FIG. 4  is a flowchart of a method of controlling a volume in a mobile communication terminal  100  according to another embodiment of the present invention. Parts overlapped with those of the description for  FIG. 2  are omitted in the following description. 
     Referring to  FIG. 4 , the mobile communication terminal  100  is able to enter a specific mode while a quiet mode is set (S 110 , S 120 ). Step S 130  determines whether the quiet mode is disabled, partially disabled, or maintained. 
     If the “full release” mode is determined (S 130 ) an audio signal is reproduced (S 140 ), the specific mode is terminated (S 150 ), and the quiet mode is terminated (S 160 ). 
     If the “partial release” mode is determined (S 130 ), an audio signal is reproduced (S 170 ), the specific mode is executed (S 180 ), and the quiet mode is maintained (S 190 ). 
     If the “maintain quiet mode” mode is determined (S 130 ), no audio signal is reproduced (S 200 ), the specific mode is executed (S 210 ), and the quiet mode is maintained (S 220 ). 
     If a specific mode is entered while the quiet mode is set, the mobile communication terminal  100  may disable the quiet mode to output an audio signal. According to one embodiment of the present invention, a user may disable a quiet mode, partially disable a quiet mode while the specific mode is executed, or maintain a quiet mode while the specific mode is executed. 
     If desired, control unit  110  may display on a display unit  140  an interface for selecting whether to fully disable a quiet mode, partially disable a quiet mode, and maintain a quiet mode. This will be explained with reference to  FIG. 5  later. 
     If the quiet mode is fully disabled in step S 130 , the control unit  110  may reproduce an audio signal while the specific mode is executed (S 140 ). The audio signal reproduction may be performed via the audio output unit  130 . The volume of the audio signal may be the most recent volume setting used by the audio output unit  130  or a preset audio signal volume. In this embodiment, the control unit  110  may release the quiet mode (S 160 ) when a specific mode ends via step S 150 . 
     If the quiet mode is partially disabled in step S 130 , the control unit  110  may reproduce an audio signal by partially disabling the quiet mode while executing a specific mode (S 170 ). The audio signal reproduction may be performed via the audio output unit  130 . The volume of the outputted audio signal may be the most recent volume setting used by the audio output unit  130  or a preset audio signal volume. If the specific mode ends (S 180 ), the control unit  110  makes the mobile communication terminal  100  maintain the quiet mode (S 190 ). 
     If the quiet mode is maintained in step S 130 , the control unit  110  maintains the quiet mode while a specific mode is executed. When the quiet mode is maintained, the control unit  110  does not reproduce an audio signal while a specific mode is executed (S 200 ). If the specific mode ends (S 210 ), the control unit  110  maintains the quiet mode of a mobile communication terminal  100  (S 220 ). 
     A method of controlling a volume of a mobile communication terminal  100 , when a broadcast mode is entered as illustrated in  FIG. 4 , is explained as follows. 
       FIG. 5  shows an example of the method shown in  FIG. 4 , and more particularly, a method of controlling a volume in a mobile communication terminal  100  when a broadcast mode is executed. 
     As illustrated in  FIG. 5 , when a broadcast mode is executed while a quiet mode is set, an interface for selecting a quiet mode option may be displayed. In this scenario, the selections for the quiet mode option includes “broadcast release,” “full release,” and “maintain quiet mode 
     If the “broadcast release” is selected, the quiet mode is temporarily disabled while a broadcast signal is output. Therefore, a broadcast is reproduced while an audio signal is output in correspondence to the previous volume setting. Additionally, the quiet mode status is maintained when a broadcast ends. 
     If the “full release” is selected, the quiet mode is disabled, an audio signal may be outputted in correspondence to a previous volume setting while a broadcast is reproduced. If the broadcast ends, the quiet mode remains disabled. 
     If the “maintain quiet mode” is selected, an audio signal is not output while the broadcast signal is output. Additionally, the quiet mode status is maintained when a broadcast ends. 
     Accordingly, the present invention provides several effects or advantages. The present invention is able to manage a quiet mode by dividing the quiet mode into two categories: a quiet mode while executing a specific mode and a quiet mode while not executing a specific mode. Therefore, an audio signal is reproduced by disabling the quiet mode while the specific mode is executed. If the specific mode is terminated, the quiet mode may be automatically enabled. 
     It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.