Patent Publication Number: US-2012029669-A1

Title: Recording and reproducing apparatus

Description:
CROSS REFERENCE OF RELATED APPLICATION 
     The disclosure of Japanese Patent Application No. 2010-168266, which was filed on Jul. 27, 2010, is incorporated here by reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a recoding and reproducing apparatus which performs a recording process by allocating content data to a specific folder among a plurality of folders in a recording medium and then performs a reproducing process of reproducing the content data allocated to the specific folder. 
     2. Description of the Related Art 
     Conventionally, when a data file is recorded on a recording medium, there is appreciatedly used a recording and reproducing apparatus in which a specific folder is selected from a plurality of folders in the recording medium, and the data file is allocated to a selected folder and recorded. 
     However, in the conventional sound-recording and reproducing apparatus, there are at least following problems. 
     (1) Upon switching a folder A, a folder B and a folder C in the recording medium on which the data file is recorded, it is necessary to perform complicated operations such as switching the folder A to the folder B by pressing a folder button once and switching the folder B to the folder C by pressing the folder button once more. 
     (2) Upon reproducing, because it is impossible to know immediately which folder a data file wished to be reproduced is allocated to, it is necessary to perform a complicated operation to search for it. 
     (3) Because a sound-recording function setting and a reproducing function setting must to be set individually, it is necessary to perform a complicated operation to set them. 
     Thus, in the conventional sound-recording and reproducing apparatus, when the data file is recorded and reproduced, it is necessary to perform the complicated operations for selecting folders and the setting. 
     SUMMARY OF THE INVENTION 
     According to the present invention, a recording and reproducing apparatus provided with a recording mode which performs a recording process of recording content data on a recording medium, a reproduction mode which performs a reproducing process of reproducing the content data recorded on the recording medium, and a revolving switch capable of selecting a predetermined folder from among a plurality of folders of the recording medium corresponding to a revolved position, comprises: a recording setter which sets, upon the recording mode, a first folder corresponding to a revolved position of the revolving switch, out of the plurality of folders in the recording medium, as an allocation destination of the content data to be recorded on the recording medium; a reproducing setter which sets the content data allocated to a second folder corresponding to a revolved position of the revolving switch, out of the plurality of folders in the recording medium, as a reproducing destination, wherein the first folder and the second folder become the same folder out of the plurality of folders in the recording medium on the condition that the revolved position of the revolving switch in the recording mode is same as the revolved position of the revolving switch in the reproduction mode. 
     The above described features and advantages of the present invention will become more apparent from the following detailed description of the embodiment when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an outline view showing an IC recorder  10  according to this embodiment; 
         FIG. 2  is a block diagram showing one portion of a circuit configuration of the IC recorder  10  according to this embodiment; 
         FIG. 3  is an illustrative view showing a folder configuration of an external memory card  54  according to this embodiment; 
         FIG. 4  is an illustrative view showing a sound-recording function table related to folders and sound-recording functions in a sound-recording mode of the IC recorder  10  according to this embodiment; 
         FIG. 5  is an illustrative view showing one example of an operation manner in the sound-recording mode of the IC recorder  10  according to this embodiment; 
         FIG. 6  is an illustrative view showing a reproducing function table related to folders and reproducing functions in a reproduction mode of the IC recorder  10  according to this embodiment; 
         FIG. 7  is an illustrative view showing one example of an operation manner in the reproduction mode of the IC recorder  10  according to this embodiment; 
         FIG. 8  is a flowchart showing one portion of behavior of the IC recorder  10  according to this embodiment; 
         FIG. 9  is a flowchart showing another portion of behavior of the IC recorder  10  according to this embodiment; 
         FIG. 10  is a flowchart showing still another portion of behavior of the IC recorder  10  according to this embodiment; 
         FIG. 11  is a flowchart showing yet another portion of behavior of the IC recorder  10  according to this embodiment; 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Hereinafter, as one embodiment of a recording and reproducing apparatus according to the present invention, an embodiment carried out for an IC recorder will be described along with the drawings specifically. 
       FIG. 1  is an outline view of an IC recorder  10  according to this embodiment.  FIG. 1  (A) shows a front surface of a housing provided with a liquid crystal display device (an LCD portion)  16 , a stop button  20 , a cursor key  22  including a reproduction pausing function, a setting function, a menu calling function, a shifting function and a volume adjusting function, and a mode dial  24 . A mark shown as  26  is a position mark for indicating a folder which is currently set by the mode dial  24  and is printed on the housing. A variety of settings described later is performed by operating the mode dial  24  so that any one of character strings printed on the mode dial  24  such as “AUTO”, “OFF”, “MANUAL”, “MUSIC”, “PIANO” and “VOCAL” are placed on a line nearly parallel to a position mark  26 . 
     Here, in a word, an operation of placing the character string of the mode dial  24  by an user means a selection operation, and therefore, the placing operation will be described by regarding as the selection operation, hereafter. For example, when the character string “AUTO” is placed on the line nearly parallel to the position mark  26 , it is regarded that an auto mode is selected. Moreover, when the character string “OFF” is placed on the line nearly parallel to the position mark  26 , it is regarded that a power-off is selected. Similarly, a manual mode is selected in a case of the character string “MANUAL”, a music mode is selected in a case of the character string “MUSIC”, a piano mode is selected in a case of the character string “PIANO”, and a vocal mode is selected in a case of the character string “VOCAL”. 
       FIG. 1  (B) shows a right side surface of the housing, and a microphone  28   a  (Right) is installed on an upper portion of the housing. It is noted that, a microphone  28   b  (Left) is installed on an upper portion of a left side surface of the housing (not shown), and therefore, it becomes possible to perform a stereo recording by using the two microphones. A number  30  indicates a line terminal, a number  32  indicates a reproducing button, and a number  34  indicates a sound-recording button. A number  38  indicates an input changeover switch to switch whether inputting sound from the microphones  28   a  and  28   b  or inputting the sound from the line terminal  30 . 
       FIG. 1  (C) shows a rear surface of the housing in which a speaker  36  is installed. 
     The IC recorder  10  according to this embodiment has a sound-recording function and a reproducing function, and shifts to a mode selected by operating the mode dial  24 . Specifically, when the power-off is selected, the IC recorder  10  is transitioned to a power-off state, and when a mode except the power-off is selected, each mode is entered. In the power-off state, when the character string except “OFF” is placed on the line nearly parallel to the position mark  26  by the operation of the mode dial  24 , the IC recorder  10  is automatically transitioned to the power-on state and a mode corresponding to the character string is also entered. 
       FIG. 2  shows a block diagram of the IC recorder  10 . 
     The IC recorder  10  includes the microphone  28  ( 28   a  and  28   b ), and an analog sound signal collected from the microphone  28  by performing a recording-start operation is inputted to a codec  40  connected with the microphone  28 . Alternatively, an analog sound signal inputted from the line terminal  30  is inputted to the codec  40 . The codec  40  converts the inputted analog sound signal into a digital signal and performs a predetermined digital process. 
     A CPU  42  which controls a whole of the IC recorder  10  is connected with a bass  44  and temporarily accommodates digital sound data on which the digital process is performed by the codec  40  into an SDRAM  46 . To the bass  44 , the codec  40 , the CPU  42 , the SDRAM  46 , a flash memory  48 , the LCD portion  16 , a DSP (Digital Signal Processor)  50  and an external memory controller  52  are connected, and in the flash memory  48 , a program executed by the CPU  42  and a parameter to execute the program, etc., are stored. 
     Moreover, the stop button  20 , the cursor key  22 , the reproducing button  32 , the sound-recording button  34  and the input changeover switch  38  are connected with the CPU  42 , and when these buttons are operated, the CPU  42  comprehends the operation content so as to execute a program corresponding to the operation content by using the parameter to execute the program. It is noted that, the mode dial  24  is connected with the CPU  42  through a mode switch  62 , and when the mode dial  24  is operated, the CPU  42  comprehends the mode content through the mode switch  62  so as to execute a program corresponding to the mode content by using the parameter to execute the program. Here, when the power-off is selected on the mode dial  24 , the CPU  42  controls a power control section  60  so as to turn off the power of a main unit. 
     Next, when an MP3 system is adopted as a file format upon recording, the digital sound data temporarily accommodated in the SDRAM  46  is outputted to the DSP  50 . Thereafter, the DSP  50  performs a compression process on the inputted digital sound data in the MP3 format so as to temporarily accommodate into the SDRAM  46  as an MP3 sound file. Then, the CPU  42  controls the external memory controller  52  so as to record the MP3 sound file accommodated in the SDRAM  46  on the external memory card  54 . 
     Moreover, when a PCM system is adopted as the file format, the digital sound data temporarily accommodated in the SDRAM  46  is made into a PCM formatted sound file. Thereafter, the CPU  42  controls the external memory controller  52  so as to record a PCM sound file accommodated in the SDRAM  46  on the external memory card  54 . In this embodiment, each sound file is recorded on the external memory card  54 , however, a nonvolatile internal memory not shown may be arranged in the IC recorder  10  for recording. The above-described processes from collecting sound to recording are defined as a sound-recording process, and a mode in which these processes are performed is defined as a sound-recording mode. Moreover, a mode in which a reproducing process described later is performed is defined as a reproduction mode. 
     A sound reproducing process is started and executed by operating the reproducing button  32  or operating the cursor key  22  in the reproduction mode. Specifically, when the MP3 sound file is subject to be reproduced, the file is temporarily accommodated into the SDRAM  46  from the external memory card  54 , and then, a decompressing process is performed in the DSP  50 . A digital decompressed sound signal on which the decompressing process is performed is accommodated into the SDRAM  46  again and is outputted to the codec  40 . When a sound file to be reproduced is a PCM formatted sound file, the file is outputted from the external memory card  54  to the codec  40 . 
     In the codec  40 , an amplifying process is performed by converting the digital decompressed sound signal into an analog decompressed sound signal and outputting the signal to an amplifier  56 . Thereafter, the signal is outputted to the speaker  36 . It is noted that, in this embodiment, each sound file recorded in the external memory card  54  is reproduced, however, the nonvolatile internal memory not shown may be arranged in the IC recorder  10  for reproducing each sound file recorded in the memory. 
       FIG. 3  shows a configuration of folders in the external memory card  54  which is configured by an AUTO folder, a MANUAL folder, a MUSIC folder, a PIANO folder and a VOCAL folder. In each folder, a plurality of sound files are accommodated. 
     Subsequently, operations of the IC recorder  10  in the sound-recording mode and the reproduction mode will be described in detail. 
     In the IC recorder  10  according to this embodiment, the mode dial  24  is installed as described above, and the variety of settings are performed by operating the mode dial  24  in the sound-recording mode and selecting any one of the auto mode, the power-off, the manual mode, the music mode, the piano mode, and the vocal mode. Specifically, when the auto mode is selected, the AUTO folder is allocated as a folder on which the sound file is to be recorded. Similarly, the MANUAL folder is allocated when the manual mode is selected, the MUSIC folder is allocated when the music mode is selected, the PIANO folder is allocated when the piano mode is selected, and the VOCAL folder is allocated when the vocal mode is selected. It is noted that, in the MANUAL folder and the MUSIC folder, a plurality of folders further exists; folders capable of being selected by the user operating the cursor key  22 , for example. 
     Here, the folder on which the sound file is to be recorded is allocated corresponding to the selected mode, and concurrently, a recording system of the sound file, i.e., a function for performing the recording process is set. 
     It is noted that, as for each character string, indicating each mode, which is printed on the mode dial  24 , the character string that is easy to understand for the user is adopted. 
     The character string “AUTO” indicating the auto mode means that it is not necessary for the user to consider a detailed setting and usage upon the sound-recording, and the character string “MANUAL” indicating the manual mode means that it is possible for the user to set the detailed setting and the usage upon the sound-recording. The character string “MUSIC” indicating the music mode shows that it is suitable for recording music, and the character string “PIANO” indicating the piano mode shows that it is suitable for mainly recording a sound generated from a piano. The character string “VOCAL” indicating the vocal mode shows that it is suitable for mainly recording voice of a human. 
       FIG. 4  (A) is a tale showing a relationship between the folders to be allocated and sound-recording-function setting items. The table is accommodated in the flash memory  48 , and the CPU  42  performs each setting with reference to the table. 
     As shown in  FIG. 4 , the analog sound signal inputted through the microphone  28  or the line terminal  30  is recorded on each folder by the CPU  42  controlling the microphone  28 , the codec  40  and the DSP  50  with reference to the table and performing processes along with the sound-recording-function setting items respectively. 
     As the sound-recording-function setting items, following items are provided: “compression ratio” upon compressing the sound; “microphone sensitivity” of the microphone  28 ; fan noises of an air-conditioning sound and a projector; a level of “filter” to reject a low frequency corresponding to a wind noise, etc. upon the sound-recording outdoors and “sound-recording limiter” to inhibit sudden excessive inputting during the sound-recording. 
     For a specific operation example, the auto mode is selected by operating the mode dial  24 , and in a case where a certain sound is recorded on the AUTO folder, the CPU  42  controls the microphone  28  with reference to the table so as to set the microphone sensitivity to a middle sensitivity and controls the codec  40  so as to perform a process of rejecting a sound equal to or less than 300 kHz by controlling the codec  40 . 
     It is noted that, it is possible to change the sound-recording-function setting items of the table, and the table shown in  FIG. 4  (A) is a table which is set before the user uses for the first time or when resetting is performed.  FIG. 4  (B) shows a table after the sound-recording-function setting items of the table are changed. It is noted that, it is possible to change the setting items in a case where the sound is recorded on the AUTO folder. Even if the power is turned off, the sound-recording-function setting items are maintained. 
       FIG. 5  is a figure showing a transition when the sound-recording-function setting items are changed. 
     When the auto mode is selected by operating the mode dial  24  ( FIG. 5  (A)), the total number of the files accommodated in the AUTO folder is displayed on the LCD portion  16  ( FIG. 5  (B)). When the sound-recording button  34  is operated in a state where the total number of the files is displayed as shown in  FIG. 5  (B), the CPU  24  controls each section with reference to the table accommodated in the flash memory  48  so as to start to execute the sound-recording process, and concurrently, displays a character string indicating the sound-recording being in progress and a level of the sound inputted from the microphones  28   a  and  28   b , i.e., a sound-recording level on the LCD portion  16  ( FIG. 5  (C)). 
     In a state where the total number of the files is displayed as shown in  FIG. 5  (B), when an operation equivalent to the menu calling function is performed on the cursor key  22 , the LCD portion  16  shifts to a screen for the variety of sound-recording setting, and the four setting items such as “compression ratio”, “microphone sensitivity”, “filter” and “sound-recording limiter” are displayed so that one item is capable of being selected from among these functions ( FIG. 5  (D)). 
     In a state where the four setting items are displayed on the LCD portion  16  as shown in  FIG. 5  (D), when operations equivalent to the shift function and the setting function are performed on the cursor key  22  so as to select any one of the items, the LCD portion  16  shifts to setting screens of each item. When the item “compression ratio” is selected, four setting items of the compression ratio such as “96 k/24 bit”, “44 k/24 bit”, “MP3/192 kbps” and “MP3/128 kbps” are displayed so that one item is capable of being selected from among these items ( FIG. 5  (E)). 
     Here, the item “96 k/24 bit” indicates that a sound signal is divided into 96,000 signals per second and a loudness of the sound is represented with two to the power 24 (16,780,000 tones). The item “44 k/24 bit” indicates that the sound signal is divided into 44,000 signals per second and the loudness of the sound is represented with 16,780,000 tones. The item “MP3/192 kbps” indicates that the sound signal is compressed with a transfer efficiency of 192 kbps in the MP3 format. The item “MP3/128 kbps” indicates that the sound signal is compressed with a transfer efficiency of 128 kbps in the MP3 format. 
     Moreover, when the item “microphone sensitivity” is selected in a display state shown in  FIG. 5  (D) on the LCD portion  16 , three microphone-sensitivity setting items such as “high sensitivity”, “middle sensitivity”, and “low sensitivity” are displayed so that one item is capable of being selected from among these items ( FIG. 5  (F)). 
     Here, the microphone sensitivity indicates at which level the analog sound signal collected from the microphone  28  is outputted, and the item “high sensitivity” indicates a high level, the item “middle sensitivity” indicates a middle level, and the item “low sensitivity” indicates a low level. 
     Similarly, when the item “filter” is selected in the display state shown in  FIG. 5  (D) on the LCD portion  16 , three filter setting items such as “OFF”, “300 kHz/ON”, and “500 kHz/ON” are displayed so that one item is capable of being selected from among these items ( FIG. 5  (G)). 
     Here, the item “300 kHz/ON” indicates that a part of the sound signal equal to or less than 300 kHz is rejected, and the item “500 kHz/ON” indicates that a part of the sound signal equal to or less than 500 kHz is rejected. 
     Similarly, when the item “sound-recording limiter” is selected in the display state shown in  FIG. 5  (D) on the LCD portion  16 , two sound-recording limiter setting items such as “OFF” and “ON” are displayed so that one of them is capable of being selected ( FIG. 5  (H)). 
     Subsequently, the operation in the reproduction mode will be described. In the reproduction mode, the variety of settings are performed by the user operating the mode dial  24  and selecting any one of the auto mode, the power-off, the manual mode, the music mode, the piano mode, and the vocal mode. Specifically, when the auto mode is selected, the AUTO folder is allocated as a folder in which the sound file is to be reproduced. Similarly, the MANUAL folder is allocated when the manual mode is selected, the MUSIC folder is allocated when the music mode is selected, the PIANO folder is allocated when the piano mode is selected, and the VOCAL folder is allocated when the vocal mode is selected. It is noted that, in the MANUAL folder and the MUSIC folder, a plurality of folders further exists; folders capable of being selected by the user operating the cursor key  22 , for example. 
     Here, the folder in which the sound file is to be reproduced is allocated corresponding to the selected mode, and concurrently, a reproducing system of the sound file, i.e., a function for performing the reproducing process is set. 
     It is noted that, as described above, as for each character string, indicating each mode, which is printed on the mode dial  24 , the character string that is easy to understand for the user is adopted. 
     The character string “AUTO” indicating the auto mode means that it is not necessary for the user to consider the detailed setting and usage upon reproducing, and the character string “MANUAL” indicating the manual mode means that it is possible for the user to set the detailed setting and the usage upon reproducing. The character string “MUSIC” indicating the music mode shows that it is suitable for reproducing a music file, and the character string “PIANO” indicating the piano mode shows that it is suitable for reproducing the music file in which the sound generated from the piano is mainly recorded. The character string “VOCAL” indicating the vocal mode shows that it is suitable for reproducing a sound file in which the voice of the human is mainly recorded. 
       FIG. 6  (A) is a tale showing a relationship between the folders to be allocated and reproducing-function setting items. The table is accommodated in the flash memory  48 , and the CPU  42  performs each setting with reference to the table. 
     As the reproducing-function setting items, following items are provided: a setting of “repeat” for the sound file; a setting of “equalizer” to emphasize or decrease a specific frequency band of the sound signal; a setting of “noise cancel” to reduce a background noise and a setting of “speed control” to control a reproducing speed. 
     Specifically, when the auto mode is selected by operating the mode dial  24 , it becomes possible to reproduce a certain sound file from the AUTO folder. Then, when the sound file is reproduced, as a result of the CPU  42  referring to the table, a repeating function becomes ineffective, a noise cancelling function and a speed controlling function are set to initial values, a frequency characteristic of the sound signal based on the sound file is adjusted in an equalizing function so as to be a same level in a low-band, a middle-band and a high-band. It is noted that, it is possible to change the reproducing-function setting items of the table, and the table shown in  FIG. 6  (A) is a table which is set before the user uses for the first time or when resetting is performed.  FIG. 6  (B) shows a table after the reproducing-function setting items of the table are changed. It is noted that, it is possible to change the reproducing-function setting items in a case where the sound file in the AUTO folder is reproduced. Even if the power is turned off, the reproducing function-setting items are maintained. 
       FIG. 7  is a chart showing a transition when the reproducing-function setting items are changed. 
     When the auto mode is selected by operating the mode dial  24  ( FIG. 7  (A)), the total number of the files accommodated in the AUTO folder is displayed on the LCD portion  16  ( FIG. 7  (B)). When the reproducing button  32  is operated in a state where the total number of the files is displayed as shown in  FIG. 7  (B), the CPU  24  controls each section with reference to the table accommodated in the flash memory  48  so as to start to execute the sound reproducing process, and concurrently, displays a character string indicating the reproducing being in progress and a level of the sound outputted to the speaker  36  on the LCD portion  16  ( FIG. 7  (C)). 
     In a state where the total number of the files is displayed as shown in  FIG. 7  (B), when an operation equivalent to the menu calling function is performed on the cursor key  22 , the LCD portion  16  shifts to a screen for the variety of reproducing setting, and the four reproducing-function setting items such as “repeat”, “equalizer”, “noise cancel” and “speed control” are displayed so that one item is capable of being selected from among these functions ( FIG. 7  (D)). 
     When operations equivalent to the shift function and the setting function are performed on the cursor key  22  so as to select any one of the items in a state where the four setting items are displayed on the LCD portion  16  as shown in  FIG. 7  (D), the LCD portion  16  shifts to setting screens of each item. When the item “repeat” is selected, four repeat setting items such as “OFF”, “one tune”, “ALL” and “random” are displayed so that one item is capable of being selected from among these items ( FIG. 7  (E)). 
     Here, the item “one tune” indicates that a designated sound file is repeatedly reproduced, the item “ALL” indicates that all the sound files in a folder that the designated sound file belongs are repeatedly reproduced in order of file numbers, and the item “random” indicates that all the sound files in the folder that the designated sound file belongs are randomly and repeatedly reproduced irrespective of the file numbers. 
     Similarly, when the item “equalizer” is selected in the display state shown in  FIG. 7  (D) on the LCD portion  16 , four equalizer setting items such as “middle/high band increasing”, “middle/high band decreasing”, “flat” and “POP” are displayed so that one item is capable of being selected from among these items ( FIG. 7  (F)). 
     Here, the item “middle/high band increasing” indicates that levels of the sound signal in the middle band and the high band are increased. As a result, it becomes possible to hear a voice of a human such as a vocalist remarkably. The item “middle/high decreasing” indicates that the levels of the sound signal in the middle band and the high band are decreased slightly. As a result, a sound file such as a classic music is reproduced in the middle band mainly, and therefore, it becomes listenable and easy to set the mood. The item “flat” indicates that the level of the frequency characteristic is equal in all of the low band, the middle band and the high band. The item “POP” indicates that the low band is increased, the middle band is decreased and the high band is increased. As a result, a sound quality is modulated. 
     Similarly, when the item “noise cancel” is selected in the display state shown in  FIG. 7  (D) on the LCD portion  16 , three noise cancel setting items such as “OFF”, “ON: weak”, and “ON: strong” are displayed so that one item is capable of being selected from among these items ( FIG. 7  (G)). 
     The item “OFF” indicates that the noise cancelling is not performed, the item “ON: weak” indicates that a comparatively-weak sound signal of an opposite phase for deleting a noise component is generated, and the item “ON: strong” indicates that a comparatively-strong sound signal of the opposite phase is generated. 
     Similarly, when the item “speed control” is selected in the display state shown in  FIG. 7  (D) on the LCD portion  16 , three speed control setting items such as “OFF”, “fast reproduction”, and “slow reproduction” are displayed so that one item is capable of being selected from among these items ( FIG. 7  (H)). 
     Subsequently, with reference to  FIG. 8  to  FIG. 11 , processes in the above-described sound-recording and reproduction mode will be described. These processes are realized by the CPU  42  executing each program accommodated in the flash memory  48 . It is noted that, the CPU  42  is a multi task CPU, for example, and is capable of executing a plurality of processes in a parallel manner. 
       FIG. 8  is a flowchart of a sound-recording mode control task indicating one portion of the sound-recoding and reproducing process executed by the CPU  42 . 
     When a power source is applied to the IC recorder  10 , or when the sound-recording mode control task is started up by a reproduction mode control task described later, in a step S 101 , the CPU  42  sets a current operation mode to the sound-recording mode and starts up a sound-recording-function mode detecting task. Subsequently, the process advances to a step S 103  so as to detect a mode currently selected by the mode dial  24 . Subsequently, the process advances to a step S 105  so as to determine a folder corresponding to the currently selected mode and perform the variety of sound-recording function settings corresponding to the folder with reference to the table accommodated in the flash memory  48 . 
     Subsequently, the process advances to a step S 107  so as to determine whether or not the sound-recording operation is performed on the sound-recording button  34 . When NO is determined in the step S 107 , the process advances to a step S 108  so as to determine whether or not the reproducing operation is performed on the reproducing button  32 . When YES is determined in the step S 108 , the process advances to a step S 117  so as to start up the reproduction mode control task, and thereafter, the sound-recording mode control task is ended. When NO is determined in the step S 108 , the process advances to a step S 109  so as to determine whether or not a change notification is notified from the sound-recording-function mode detecting task. When YES is determined in the step S 109 , the process returns to the step S 103  while when NO is determined, the process returns to the step S 107 . 
     When YES is determined in the step S 107 , the process advances to a step S 111  so as to start up the sound-recording process by controlling each block shown in  FIG. 2 . Subsequently, the process advances to a step S 113  so as to determine whether or not a stop operation is performed on the stop button  20 . In the step S 113 , the process is repeated until YES is determined, and when YES is determined, the process advances to a step S 115  so as to end the sound-recording process by controlling each block. Thereafter, the process returns to the step S 107 . 
       FIG. 9  is a flowchart of the sound-recording-function mode detecting task started up in the step S 101  of the sound-recording mode control task executed by the CPU  42 . 
     When the sound-recording-function mode detecting task is started up, firstly, in a step S 201 , it is determined whether or not the mode is changed by operating the mode dial  24 . In the step S 201 , the process is repeated until YES is determined, and when YES is determined, the process advances to a step S 203  so as to determine whether or not the power-off mode is selected as a result of the determination. When YES is determined in the step S 203 , the process advances to a step S 205 . In the step S 205 , the CPU  42  issues a command to the power control section  60  to turn off the power, and thereafter, the sound-recording function mode detecting task is ended. 
     When NO is determined in the step S 203 , the process advances to a step S 207  so as to notify the sound-recording mode control task of a change of the mode. Thereafter, the process returns to the step S 201 . 
       FIG. 10  is a flowchart of the reproduction mode control task started up in the step S 108  of the sound-recording mode control task. Firstly, in a step S 301 , a current operation mode is set to the reproduction mode, and furthermore, a reproducing-function mode detecting task is started up. Thereafter, the process advances to a step S 303  so as to detect a mode currently selected by the mode dial  24 . Subsequently, the process advances to a step S 305  so as to determine a folder corresponding to the currently selected mode and perform the variety of reproducing function settings corresponding to the folder with reference to the table accommodated in the flash memory  48 . 
     Subsequently, the process advances to a step S 307  so as to start up the reproducing process by controlling each block shown in  FIG. 2 . Thereafter, the process advances to a step S 309 . In the step S 309 , it is determined whether or not the stop operation is performed by the stop button  20 . The process is repeated until YES is determined in the step S 309 , and when YES is determined, the process advances to a step S 311  so as to end the reproducing process by controlling each block. 
     Subsequently, the process advances to a step S 313  so as to determine whether or not a change notification is notified from the reproducing-function mode detecting task. When YES is determined in the step S 313 , the process returns to the step S 303  while when NO is determined, the process advances to a step S 315 . In the step S 315 , it is determined whether or not the reproducing operation is performed by the reproducing button  32 , and when YES is determined, the process returns to the step S 307 . 
     When NO is determined in the step S 315 , the process advances to a step S 317  so as to determine whether or not the sound-recording operation is performed, and when NO is determined, the process returns to the step S 313  while when YES is determined, the process advances to a step S 319 . In the step S 319 , the sound-recording mode control task is started up, and thereafter, the reproduction mode control task is ended. 
       FIG. 11  is a flowchart of the reproducing-function mode detecting task started up in the step S 301  of the reproduction mode control task. 
     When the reproducing-function mode detecting task is started up, firstly, in a step S 401 , it is determined whether or not the mode is changed by operating the mode dial  24 . In the step S 401 , the process is repeated until YES is determined, and when YES is determined, the process advances to a step S 403  so as to determine whether or not the power-off mode is selected as a result of the determination. When YES is determined in the step S 403 , the process advances to a step S 405 . In the step S 405 , the CPU  42  issues the command to the power control unit  60  to turn off the power, and thereafter, the reproducing-function mode detecting task is ended. 
     When NO is determined in the step S 403 , the process advances to a step S 407  so as to notify the reproduction mode control task of a change of the mode. Thereafter, the process returns to a step S 401 . 
     As described above, in the IC recorder  10  according to this embodiment, when a revolved position of the mode dial  24  in a recording mode is the same as in the reproduction mode, the folder in which the sound file is allocated in the recording process at the time of the recording mode becomes the same as the folder in which the sound file of a reproduction destination is allocated, and therefore, it becomes easier to operate for the user to select the folders in the recording mode and the reproduction mode. 
     Moreover, in the IC recorder  10  according to this embodiment, the function associated with each of the recording process and the reproducing process is applied by simply operating the mode dial  24  and selecting the folder, and therefore, it becomes possible for the user to record or reproduce the sound file without a detailed setting. 
     Furthermore, it becomes possible to perform the power-off operation by the user simply operating the mode dial  24 , and therefore, it is not necessary to arrange a power-off switch additionally. 
     Moreover, the function associated with each of the recording process and the reproducing process is alterable by the user, and therefore, it becomes possible to perform the recording and the reproducing according to the user&#39;s preference. 
     Thus, the mode dial  24  is operated in both the sound-recording mode and the reproducing mode, and is easy to be used intuitively because a process function suitable for each of the folders is set by the user as if designating the folder of the recording destination in a case of recording the sound and the folder in the reproducing destination in a case of reproducing. 
     It is noted that, the IC recorder  10  is described in this embodiment of the present invention, however, an imaging device or a hard disc recorder may be adopted. 
     Moreover, the sound file is described as a target to be recorded and reproduced in this embodiment, however, a target file may be a video file or a text file. 
     Furthermore, the sound-recording-function setting items and the reproducing-function setting items described in this embodiment are not limited in the above-described embodiment. 
     Moreover, in this embodiment, the mode dial  24  is adopted as the switch for selecting the folder, however, the switch is not only limited to this but also to any revolving switch. For example, even in a case where the variety of operations described in this embodiment is performed on a touch panel adopted for the LCD unit  16 , the revolving switch may be associated with the LCD unit  16 , in other words, a mode dial image may be operated by displaying it on a screen. 
     Moreover, in this embodiment, in a case where the mode dial  24  has been operated in the sound-recording process and the reproducing process, a folder and a mode of an allocation destination are not changed until the stop operation is performed by operating the stop button  20 . 
     It is noted that, when the power is turned off corresponding to the set mode, the sound-recording-function setting items and the reproducing-function setting items may be reset. 
     Although the present invention has been described and illustrated in detail, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the spirit and scope of the present invention being limited only by the terms of the appended claims.