JP4817756B2 - Display control device - Google Patents

Description

  The present invention relates to a display control device, and more particularly to a display control device that is used in, for example, a digital audio player and sequentially displays a plurality of menu items in response to key operations.

An example of a conventional device of this type is disclosed in Patent Document 1. In this prior art, a plurality of menu items are hierarchically held in a tree format. When the menu screen is called, the menu item (TOP menu) located at the top of the tree is displayed first, and each time a key operation is performed thereafter, the displayed menu item is moved up and down on the same branch. Update to a menu item that is located, or a menu item that is located on the left or right branch of the same hierarchy. That is, the number of key operations can be reduced by appropriately performing jump movement to the adjacent branch as compared with the case of performing only movement along the tree branch.
JP 11-126147 A [06F 3/14]

    However, in the prior art, when the menu screen is called, the TOP menu is always displayed, and it is necessary to move from the TOP menu to a desired menu item. For this reason, complicated key operations are required particularly when the number of menu items is large.

  Therefore, a main object of the present invention is to provide a display control device that can reduce an operation amount when displaying a desired menu item.

The display control device according to the first aspect of the present invention includes a top menu positioned at the highest level and a plurality of menu groups each having a hierarchical structure managed by the top menu, and the plurality of menu groups at least reproduce content. A display control device comprising a first menu group for setting a menu and a second menu group for setting a parameter for reproducing the content, wherein a plurality of menu items respectively assigned to the top menu and the plurality of menu groups are displayed. Holding means for holding, display means for hierarchically displaying a plurality of menu screens including any of a plurality of menu items held by the holding means and a default screen, a default screen positioned at the lowest hierarchy of the first menu group The menu corresponding to the top menu when one predetermined operation for the predetermined key is accepted in the state where is displayed The first update means for updating the default screen with the menu screen in which the eyes are described, and the menu display operation for selecting a desired menu item based on the menu screen updated by the first update means is selected. Menu changing means for displaying a menu screen in which menu items belonging to the first menu group or the second menu group are described, and a menu screen showing the menu items belonging to the selected first menu group or the second menu group are displayed. In the state, when a menu registration operation is accepted, a registration means for registering the selected menu item on the menu screen as a start menu item in the register, a first menu group selected in response to the registration processing of the registration means, or the first menu group A second updating means for updating a menu screen indicating menu items belonging to two menu groups to a default screen; A third updating means for updating the default screen by the start menu items described menu screen when receiving a menu display operation in a state where a constant screen is displayed.

  A plurality of menu items are held by holding means. When the first update means receives a menu display operation in a state where the default screen is displayed, the first update means displays the default screen by a menu screen in which a start menu item which is one of a plurality of menu items held by the holding means is described. Update. When a menu change operation is accepted while the menu screen is displayed, the menu items on the menu screen are changed by the menu changing means. When a menu registration operation is accepted while the menu screen is displayed, the menu item on the menu screen is registered in the register as a start menu item by the registration means. The second update means updates the menu screen to the default screen in response to the registration process of the registration means.

  Thus, the menu item on the menu screen is registered as the start menu item when the menu registration operation is performed. When the menu registration operation is performed, the menu screen is updated with the default screen. However, the default screen is updated by the menu screen on which the start menu item is described when the menu display operation is performed. Therefore, when a desired menu item is registered as a start menu item, this menu item appears promptly on the menu screen. As a result, the amount of operation when displaying a desired menu item is reduced.

  The display control device according to the invention of claim 2 is dependent on claim 1, and includes a processing means (S25) for executing a process according to the menu item on the menu screen when a menu determining operation is received in a state where the menu screen is displayed. Further prepare.

  A display control apparatus according to a third aspect of the present invention is dependent on the second aspect, and the second update means further performs update related to the processing of the processing means.

  When the menu determination operation is performed, processing according to the menu item on the menu screen is executed, and the menu screen is updated with the default screen.

  The display control device according to the invention of claim 4 is dependent on any one of claims 1 to 3, and the registration means further performs registration when the state in which the menu screen is displayed continues for a predetermined time.

  Even when the menu screen is displayed for a predetermined time, the menu item on the menu screen is registered as the start menu item.

The display control apparatus according to the invention of claim 5 is dependent on any one of claims 1 to 4, wherein the menu changing means performs the change in one hierarchy, and the processing of the processing means is a hierarchy in which the menu changing means is changed. Includes a process of changing to a lower hierarchy.

  According to the present invention, the amount of operation when displaying a desired menu can be reduced.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

  Referring to FIG. 1, the digital audio player 10 of this embodiment includes a USB terminal 38. When the digital audio player 10 is connected to the PC 54 via the USB terminal 38, the CPU 28 accesses the hard disk 34d in accordance with an access request from the PC 54. If the access request is a request to write a file, the CPU 28 writes the audio file simultaneously given from the PC 54 to the hard disk 34d through the bus 40. If the access request is for requesting reading of an audio file, the CPU 28 reads a desired audio file stored in the hard disk 34d through the bus 40, and reads the read audio file through the USB controller 36 and the USB terminal 38. To the PC 54. The CPU 28 further displays mode information “USB transfer mode” on the LCD monitor 22. Thus, the USB transfer function is realized.

  The digital audio player 10 further includes a line input terminal 14. When a recording operation is performed by the key input device 26 with the digital audio player 10 connected to the CD player 50 via the line input terminal 14, the CPU 28 sets the codec 16 and the DSP 12 to the encoding mode and the compression mode, respectively. The codec 16 encodes an audio signal input from the CD player 50 through the line input terminal 14 into audio data, and supplies the encoded audio data to the DSP 12. The DSP 12 compresses the applied audio data and stores the compressed audio data in the DRAM 32 through the bus 40. The CPU 28 gives the compressed audio data stored in the DRAM 32 to the HDD 34. The compressed audio data is stored in the hard disk 34d in a file format. Further, the CPU 28 displays mode information “recording mode” on the LCD monitor 22. Thus, an audio recording function is realized.

  When a reproduction operation is performed by the key input device 26 with nothing connected to the line input terminal 14 and the USB terminal 38, the CPU 28 sets the DSP 12 and the codec 16 to the expansion mode and the decoding mode, respectively, and stores them in the hard disk 34d. The stored audio file is read through the bus 40. The read audio file is given to the DSP 12 through the DRAM 32. The DSP 12 decompresses the compressed audio data included in the given audio file and stores the decompressed audio data in the DRAM 32. The CPU 28 gives the audio data stored in the DRAM 32 to the codec 16 through the bus 40. The codec 16 decodes the given audio data into an analog audio signal, and outputs the decoded audio signal from the headphone terminal 20 to the headphone 52 through the amplifier 18. Further, the CPU 28 displays the mode information “reproduction mode” on the LCD monitor 22. Thus, an audio playback function is realized.

  Here, the audio reproduction function includes a sound quality adjustment function for adjusting the quality of the reproduced sound. That is, the DSP 12 performs “bass” processing for emphasizing only the low frequency component of the audio data stored in the DRAM 32 in accordance with an instruction from the CPU 28, and “equalizer” for changing the frequency characteristic along a predetermined characteristic curve. Apply processing. In the “Equalizer” process, the characteristic curve to be used can be switched by specifying a genre such as pop, rock, or jazz.

  The flash memory 30 includes a plurality of program files each storing a program for realizing predetermined functions such as file deletion and sound quality adjustment, and a plurality of files such as a plurality of program files and a plurality of audio files in the hard disk 34d. And menu information for accessing. The menu information includes a plurality of menu item names. The plurality of menu item names are respectively associated with the plurality of files via the directory tree configured as shown in FIGS.

  Referring to FIG. 2, a directory “TOP MENU” located at the top of the tree, that is, the first hierarchy manages a plurality of directories “MUSIC”, “SETTING”, “FOLDER”,. The directory “MUSIC” located immediately below the directory “TOP MENU”, that is, in the second hierarchy, manages five directories “ALL SONG”, “ARTIST”, “ALBUM”, “GENRE”, and “PLAYLIST”. “ALL SONGS” located immediately below the directory “MUSIC”, that is, in the third hierarchy, manages a plurality of audio files “Song001”, “Song002”, “Song003”, “Song004”,.

  The directory “ARTIST” located in the third hierarchy manages three directories “ARTIST01”, “ARTIST02”, and “ARTIST03”. The directory “ARTIST01” located immediately below the directory “ARTIST”, that is, in the fourth hierarchy, manages the directory “ALBUM01”. The directory “ALBUM01” located immediately below the directory “ARTIST01”, that is, in the fifth layer manages five audio files “Song001” to “Song005”. The same applies to the directories “ARTIST02” and “ARTIST03”.

  Further, the directory “ALBUM” located in the third hierarchy manages three directories “ALBUM01”, “ALBUM02” and “ALBUM03”, and the directory “ALBUM01” located in the fourth hierarchy contains five audio files “Song001” to “Song001” to “ALBUM01”. “Song005” is managed. The same applies to the directories “ALBUM02” and “ALBUM03”.

  Also, the directory “GENRE” located in the third hierarchy manages three directories “ROCK”, “POPS” and “JAZZ”, “ROCK” located in the fourth hierarchy manages the directory “ALBUM01”, and The directory “ALBUM01” located in the fifth hierarchy manages five audio files “Song001” to “Song005”. The same applies to the directories “POPS” and “JAZZ”.

  The directory “PLAYLIST” located in the third hierarchy manages two directories “PLAYLIST01” and “PLAYLIST02”, and the directory “PLAYLIST01” located in the fourth hierarchy contains five audio files “Song001” to “Song005”. to manage. The same applies to the directory “PLAYLIST02”.

  Referring to FIG. 3, the directory “SETTING” located in the second hierarchy manages a plurality of directories “Play Setting”, “File Menu”,..., And the directory “Play Setting” located in the third hierarchy is a plurality of directories. The directories “Bass”, “Equalizer”,... Are managed, and the directory “Bass” located in the fourth hierarchy manages two program files “Bass ON” and “Bass OFF”. The directory “Equalizer” located in the fourth hierarchy manages four program files “POPS”, “ROCK”, “JAZZ”, and “NORMAL”.

  The directory “File Menu” located in the third hierarchy manages a plurality of directories “File Delete”, “Folder Delete”,..., And the directory “File Delete” located in the fourth hierarchy is a program file “File Delete YES”. "And" File Delete NO "are managed. The directory “Folder Delete YES” and “Folder Delete YES” and “Folder Delete NO” that are located in the fourth hierarchy are managed.

  Referring to FIG. 4, a directory “FOLDER” located in the second hierarchy manages four directories “FOLDER01”, “FOLDER02” and “FOLDER03”, and a directory “FOLDER01” located in the third hierarchy is divided into four. Audio files “Song001” to “Song004” are managed.

  Further, the directory “FOLDER02” located in the third hierarchy manages the two directories “FOLDER04” and “FOLDER05” and the audio file “Song005”, and the directory “FOLDER04” located in the fourth hierarchy is the two directories “FOLDER08”. ”And“ FOLDER09 ”, and the directory“ FOLDER08 ”located in the fifth hierarchy manages two audio files“ Song013 ”and“ Song014 ”. The directory “FOLDER05” located in the fourth layer manages two directories “Song006” and “Song007”, and the directory “FOLDER09” located in the fifth layer manages three audio files “Song015” to “Song017”. .

  The directory “FOLDER03” located in the third hierarchy manages two directories “FOLDER06” and “FOLDER07”, and the directory “FOLDER06” located in the fourth hierarchy contains five audio files “Song008” to “Song012”. to manage. The directory “FOLDER07” located in the fourth hierarchy manages two directories “FOLDER10” and “FOLDER11”, and the directory “FOLDER10” located in the fifth hierarchy manages five audio files “Song018” to “Song022”. . The directory “FOLDER 11” located in the fifth hierarchy manages two audio files “Song 023” and “Song 024”.

  In the digital audio player 10 configured as described above, when a desired music piece is reproduced, the display screen of the LCD monitor 22 transitions as shown in FIG. 5 according to the operation of the key input device 26 by the operator. Referring to FIG. 5, when a power key provided on key input device 26 is pressed, a PLAY mode screen is displayed first. When a menu key or an OK key provided on the key input device 26 is pressed here, a TOP menu screen is displayed instead of the PLAY mode screen. The TOP menu screen corresponds to the directory “TOP MENU” in FIG. On the TOP menu screen, menu items such as “MUSIC”, “SETTING”, and “FOLDER” are presented in order according to the operation of the cross key provided in the key input device 26.

  When the OK key is pressed while “MUSIC” is presented, a “MUSIC” menu screen is displayed instead of the TOP menu screen. The “MUSIC” menu screen corresponds to the directory “MUSIC” in FIG. When “ALBUM” is selected by operating the cross / OK key, the “ALBUM” menu screen is displayed. The “ALBUM” menu screen corresponds to the directory “ALBUM” in FIG.

  When “ALBUM01” is selected by operating the cross / OK key on the “ALBUM” menu screen, the “ALBUM01” menu screen is displayed. The “ALBUM01” menu screen corresponds to the directory “ALBUM01” in FIG.

  When “Song002” is selected by operating the cross / OK key on the “ALBUM01” menu screen, an audio file corresponding to “Song002” is determined as a playback target. Next, when the menu key is pressed, the current menu item, that is, “ALBUM01” is stored in the register R in the DRAM 30. Even if 30 seconds elapse without any key operation, the current menu item is similarly stored. After storing, the PLAY mode screen is displayed instead of the “ALBUM01” menu screen.

  If the PLAY key provided in the key input device 26 is pressed while the PLAY mode screen is displayed, the reproduction of “Song002” is started. When the menu key is pressed during reproduction of “Song002”, the PLAY mode screen is switched to the menu screen corresponding to the stored item of the register R, that is, the “ALBUM01” menu screen. If, for example, “Song003” is selected by operating the cross / OK key, “Song003” can be reproduced instead of “Song002”.

  On the other hand, if the OK key is pressed during reproduction of “Song002”, a TOP menu screen (for example, “MUSIC”) is displayed instead of the PLAY mode screen. In this case, in order to play “Song 003” instead of “Song 002”, the TOP menu screen goes down to the “ALBUM01” menu screen via the “MUSIC” menu screen and the “ALBUM” menu screen, and then “Song 003”. Will be selected. That is, it is necessary to repeat the series of key operations described above once again. Note that the lower menu screen of the TOP menu screen is called a SUB menu screen.

  Further, in the digital audio player 10, when the setting of a desired function, for example, the sound quality adjustment function is changed, the display screen of the LCD monitor 22 changes as shown in FIG. 6 according to the key operation. Note that the setting can be changed both during stop and during playback. Referring to FIG. 6, “Song002” is currently being reproduced, and the PLAY mode screen is displayed on LCD monitor 22. If the OK key is pressed here, a TOP menu screen is displayed instead of the PLAY mode screen.

  When the OK key is pressed while “SETTING” is presented on the TOP menu screen, the “SETTING” menu screen is displayed instead of the TOP menu screen. The “SETTING” menu screen corresponds to the directory “SETTING” in FIG. Here, when “Play Setting” is selected by operating the cross / OK key, a “Play Setting” menu screen is displayed. The “Play Setting” menu screen corresponds to the directory “Play Setting” in FIG.

  When “Bass” is selected by operating the cross / OK key on the “Play Setting” menu screen, the “Bass” menu screen is displayed. The “Bass” menu screen corresponds to the directory “Bass” in FIG.

  When “ON” is selected by operating the cross / OK key on the “Bass” menu screen, the “Bass” function is turned on. Next, when the menu key is pressed, the current menu item, that is, “Bass” is stored in the register R. Even if 30 seconds elapse without any key operation, “Bass” is similarly stored. After storage, a PLAY mode screen is displayed instead of the “Bass” menu screen.

  Thereafter, when the menu key is pressed, the PLAY mode screen is switched to the menu screen corresponding to the stored item of the register R, that is, the “Bass” menu screen. If “OFF” is selected by operating the cross / OK key, the “Bass” function can be turned off.

  On the other hand, if the OK key is pressed, a TOP menu screen (for example, “SETTING”) is displayed instead of the PLAY mode screen. In this case, to turn off the “Bass” function, go down from the TOP menu screen to the “Bass” menu screen via the “SETTING” menu screen and the “Play Setting” menu screen, and select “OFF”. become. That is, it is necessary to repeat the series of key operations described above once again.

  Thus, in the digital audio player 10, when music selection or function setting is performed, the PLAY mode screen is moved to the TOP menu screen, and further moved down to the SUB menu screen including the target menu item. When the menu key is pressed while the target SUB menu screen is displayed, the current menu item is stored in the register R. When the menu key is pressed again after returning to the PLAY mode screen, the SUB menu screen according to the stored item of the register R, that is, the immediately preceding SUB menu screen is displayed. For this reason, the operator can perform a music change and a setting change quickly.

  When performing playback with such music selection and function setting, the CPU 28 executes the main task shown in FIG. 7 and the playback task shown in FIG. 8 in parallel under the control of a multitask OS such as μITRON. . Note that programs corresponding to these flowcharts are stored in the flash memory 30.

  Referring to FIG. 7, first, a reproduction task is activated in step S1, and in the next step S3, a “TOP menu” is set as an initial value in register R. In the next step S5, a PLAY mode screen (see FIG. 5) is displayed on the LCD monitor 22. Then, a loop of steps S7 and S9 is entered. In step S7, it is determined whether or not the menu key is pressed. In step S9, whether or not the OK key is pressed is determined.

  When the menu key is pressed, the process moves from step S7 to step S11, and a menu screen corresponding to the value of the register R is displayed. Similarly, when the OK key is pressed, the process proceeds from step S9 to step S13, and the TOP menu screen is displayed. Since the “TOP menu” is stored in the register R immediately after the power is turned on, the TOP menu screen is displayed regardless of which of the menu key and the OK key is pressed. After the display, a loop of steps S15 to S21 is entered.

  In step S15, it is determined whether or not the cross key is pressed. In step S17, whether or not the OK key is pressed is determined. In step S19, it is determined whether or not 30 seconds have elapsed since the display in step S11 or S13. Then, it is determined whether or not the menu key is pressed.

  When the cross key is pressed, the process moves from step S15 to step S23, and the cursor 62 (see FIG. 5) on the menu screen is moved, that is, the current menu item is changed. Note that the menu item change in step S23 is performed in the same hierarchy. After the change, the process returns to the loop of steps S15 to S21.

  When the OK key is pressed, the process moves from step S17 to step S25 to execute processing corresponding to the current menu item. Specifically, the process executed here determines the hierarchy change process for changing the hierarchy in which the menu item is changed in step S23, the process for turning on / off the “bass” function, and the desired file to be reproduced. Processing. In the next step S27, it is determined whether or not the process executed in step S25 is a hierarchy change process. If “NO” here, the process returns to the step S5. If “YES” in the step S27, the process returns to the loop of the steps S15 to S21.

  When the menu key is pressed or when no key is pressed for 30 seconds, the current menu item is stored in the register R in step S29, and then the process returns to step S5.

  Referring to FIG. 8, in steps S41 and S43, it is determined whether or not the PLAY key and the STOP key are pressed. If “YES” in the step S41, a reproduction start command is issued in a step S45. In response to this command, the DSP 12 and the codec 16 are set to the decompression mode and the decoding mode, respectively, and the hard disk drive (HDD) 34 reads the audio file according to the determination in step S25 from the hard disk 34d. The read audio file is given to the DSP 12 and subjected to decompression processing. The expanded audio data is given to the codec 16 and subjected to decoding processing. The decoded audio signal is output from the headphone terminal 20 to the headphone 52 through the amplifier 18.

  If “YES” in the step S43, a reproduction stop command is issued in a step S47. In response to this command, the HDD 34, DSP 12, and codec 16 each stop processing.

  As is clear from the above, in this embodiment, when the CPU 28 receives a menu key press in a state where a SUB menu screen (see FIGS. 5 and 6) describing any of a plurality of menu items is displayed, The menu items described in the SUB menu screen are stored in the register R (S29), and the SUB menu screen is updated to the PLAY mode screen (S5). Thereafter, when the menu key is pressed when the PLAY mode screen is displayed, the PLAY mode screen is updated to the SUB menu screen describing the menu items in the register R (S11).

  Therefore, when a menu key is pressed on a desired SUB menu screen, the menu items on that screen are stored, and when the menu key is pressed later, the SUB menu screen corresponding to the stored menu item is displayed. It becomes. That is, the amount of operation when displaying a desired SUB menu is reduced.

  Further, when the CPU 28 accepts pressing of the OK key while the PLAY mode screen is displayed, the CPU 28 displays a TOP menu screen (S13).

  For this reason, by pressing the OK key, the TOP menu screen can be displayed, and the screen can be lowered to a desired SUB menu screen.

  The digital audio player 10 has been described above, but the present invention can be applied to any computer apparatus having a display control function for sequentially displaying a plurality of menu items in response to key operations.

It is a block diagram which shows one Example of this invention. It is an illustration figure which shows a part of menu information applied to the FIG. 1 Example. It is an illustration figure which shows the other part of menu information applied to the FIG. 1 Example. It is an illustration figure which shows the other part of the menu information applied to FIG. 1 Example. 2 is an illustrative view showing an example of a screen change based on the menu information. 3 is an illustrative view showing an example of a screen change based on the menu information. It is a flowchart which shows a part of CPU operation | movement applied to FIG. 1 Example. It is a flowchart which shows a part of other CPU operation | movement applied to FIG. 1 Example.

Explanation of symbols

10 ... Digital audio player 12 ... DSP
16 ... Codec 22 ... LCD monitor 30 ... Flash memory 32 ... DRAM
34d ... Hard disk 36 ... Key input device

Claims (5)

A top menu located in the highest hierarchy, and a plurality of menu groups each having a hierarchical structure managed by the top menu, the plurality of menu groups including at least a first menu group for setting content reproduction and the content A display control device including a second menu group for setting parameters for reproduction,
Holding means for holding a plurality of menu items respectively assigned to the top menu and the plurality of menu groups;
Display means for hierarchically displaying a plurality of menu screens including a plurality of menu items held in the holding means and a default screen;
When one predetermined operation for a predetermined key is received in a state where the default screen located at the lowest level of the first menu group is displayed, a menu screen corresponding to the top menu is described. First updating means for updating the default screen;
When a menu display operation for selecting a desired menu item is received based on the menu screen updated by the first updating means, the menu item belonging to the selected first menu group or the second menu group is described. Menu changing means for displaying the displayed menu screen,
When a menu registration operation is accepted in a state where a menu screen showing the menu items belonging to the selected first menu group or the second menu group is displayed, the selected menu item on the menu screen is started as a menu item Registration means to register in the register as
Second update means for updating a menu screen indicating a menu item belonging to the selected first menu group or the second menu group in response to a registration process of the registration means to the default screen; and
A display control apparatus comprising: a third updating unit configured to update the default screen with a menu screen in which the start menu item is described when the menu display operation is received in a state where the default screen is displayed .   The display control apparatus according to claim 1, further comprising processing means for executing processing according to a menu item on the menu screen when a menu determination operation is received in a state where the menu screen is displayed.   The display control apparatus according to claim 2, wherein the second update unit further performs update related to the processing of the processing unit.   The display control apparatus according to claim 1, wherein the registration unit further performs a registration process when the state in which the menu screen is displayed continues for a predetermined time. The menu changing means performs changing in a hierarchy, the processing of the processing means includes a process of changing to a more lower hierarchy hierarchy changes the menu changing means is performed, any one of claims 2 to 4 The display control apparatus according to 1.

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