JP4779181B2 - Content selection device and program thereof - Google Patents

Description

  The present invention relates to a content selection device that selects desired content from a plurality of contents.

  Amplifying devices (system components) incorporating a CD player, an MD player, an AM tuner, an FM tuner, and the like are commercially available. A large number of music data (MP3 file, ATRAC data, etc.) can be recorded on a disc played by a CD player and an MD player, and these music data can be managed by a plurality of folders or groups. In order to search for and select desired music data from a large number of music data recorded on the disc, the amplifying apparatus is provided with operation units such as a jog dial and a folder button.

  When music data is selected, when the folder button is pressed by a user operation, the amplifying apparatus shifts to a folder selection mode. In the folder selection mode, when the jog dial is rotated by a user operation, the folder displayed (that is, selected) on the display unit of the amplifying apparatus is switched according to the rotation of the jog dial. When the jog dial is pressed by a user operation while the desired folder is selected, the selected folder is selected, the folder selection mode is canceled, and the title of the first song in the determined folder is displayed on the display unit. Is displayed. In this state, when the jog dial is rotated by a user operation, the music data displayed (that is, selected) on the display unit is switched according to the rotation of the jog dial. When the jog dial is pressed by a user operation while a desired song is selected, the selected song data is determined and reproduction of the determined song data is started.

  As described above, even when one jog dial is rotated, different selection processes such as a folder selection process or a song data selection process are executed depending on whether or not the folder selection mode is selected. Accordingly, desired music data can be selected from a large number of music data managed by the folder using the jog dial and the folder button. However, with this operation method, when changing the selection target folder when selecting song data, be sure to press the folder button once to enter the folder selection mode and then rotate the jog dial to select the folder. Thereafter, an operation of pressing the jog dial is necessary, and the operation is complicated. This is because pressing the jog dial has a function as a determination button.

  The operation is similarly complicated when a desired channel is selected from each channel of the AM tuner and FM tuner (for example, the frequency of the broadcasting station and registered as a preset, for example). For example, the amplification device further includes an input switching button (or a band switching button) for switching the input selector between the AM tuner and the FM tuner. First, it is necessary to select the desired channel of the AM tuner or FM tuner by rotating the jog dial after selecting the desired one of the AM tuner and FM tuner by pressing the input switching button.

Japanese Patent Laid-Open No. 2004-46645

  The present invention is to solve the above-described conventional problems, and an object of the present invention is to select a desired content from a plurality of contents managed by a plurality of folders with a simple user operation. Is to provide.

  A content selection device according to a preferred embodiment of the present invention is a content selection device that selects a desired content from a plurality of contents recorded in a content storage medium via a plurality of folders in response to a user operation, A determination unit that determines whether or not an operation unit that can be operated and rotated is pressed by a user operation, and that determines whether or not the operation unit is rotated by a user operation; and the operation unit If it is determined that the button is pressed, the next or previous folder of the currently selected folder is selected, the first content included in the selected folder is selected, and the operation unit is rotated. And selecting means for selecting the next or previous content of the currently selected content.

  In this case, both the process of selecting a folder and the process of selecting content can be executed by a single operation unit, so that the user operation can be greatly simplified.

  Preferably, the determination unit further determines whether or not the content selected by the selection unit is being played back, determines that the operation unit has been pressed, and determines that the content is being played back. The selection means selects the next or previous folder of the currently selected folder, selects the first content included in the selected folder, and plays back the selected content; When it is determined that the part has been rotated and the content is determined to be played, the selection means selects and selects the next or previous content of the currently selected content. Play content.

  Only when the content is being played back, the process of selecting a folder is performed by pressing the operation unit, and the process of selecting the content is performed by rotating the operation unit. This is because it is not necessary to perform the process of determining the selection of the content by operating the operation unit and starting the playback of the determined content during the playback of the content.

  Preferably, when it is determined that the operation unit has been pressed and content is determined not to be reproduced, the determination unit further determines whether or not the folder selection mode is set, and the folder selection mode When it is determined that there is, the selection unit selects the first content of the currently selected folder, and when it is determined that the folder selection mode is not selected, the selection unit starts playback of the currently selected content. When it is determined that the operation unit has been rotated and content is not being reproduced, the determination unit further determines whether or not the folder selection mode is set, and the folder selection mode If it is determined that there is, the selection means selects the next or previous folder of the currently selected folder and does not enter the folder selection mode. If it is determined that the selection means selects the next or previous content of the currently selected content.

  In this case, when the content is not being played back, it is possible to start playback of the content selected using the pressing operation of the operation unit.

  Preferably, the determination unit further determines whether or not the content selected by the selection unit is being played back, determines that the operation unit has been pressed, and determines that the content is being played back. The selection means selects a folder next to the currently selected folder, selects the first content included in the selected folder, and determines that the operation unit has been pressed, and When it is determined that the content is not reproduced, the selection unit selects a folder before the currently selected folder, and selects the first content included in the selected folder.

  In this case, based on whether or not the content is being played back, different processing is performed such as whether to select a folder next to the currently selected folder or to select a folder before the currently selected folder. It can be executed and operability can be improved.

  Preferably, when the determination unit further determines whether or not there are a plurality of folders on the content storage medium, determines that the operation unit has been pressed, and determines that there are a plurality of folders The selection means selects the next or previous folder of the currently selected folder, selects the first content included in the selected folder, and determines that the operation unit has been pressed; and When it is determined that a plurality of folders do not exist, the selection unit selects the next or previous content of the currently selected content.

  In this case, even when the operation unit is pressed, if a plurality of folders do not exist, content selection processing is executed instead of folder selection processing. Therefore, it is possible to solve the problem that the user operation is wasted because the folder selection process is executed even when the number of folders is one or less.

  Preferably, the determination unit further determines whether or not a folder exists in the content storage medium, and when the operation unit is determined to be pressed and it is determined that the folder exists, the selection unit Selects the next or previous folder of the currently selected folder, selects the first content included in the selected folder, and determines that the operation unit has been pressed, and the folder exists. If it is determined not to do so, the selection means selects the next or previous content of the currently selected content.

  In this case, even when the operation unit is pressed, if there is no folder, content selection processing is executed instead of folder selection processing. Therefore, it is possible to solve the problem that the user operation is wasted because the folder selection process is executed even when the folder does not exist.

  Preferably, broadcast type selection means for selecting a desired type of broadcast data from a plurality of types of broadcast data, and channel selection means for selecting a desired channel from a plurality of channels of the selected type of broadcast data. The broadcast type selection means selects the type of the next or previous broadcast data type of the currently selected broadcast data, and the operation unit If it is determined that the rotation operation has been performed, the channel selection unit selects the next or previous channel of the currently selected channel in the type of the currently selected broadcast data.

  In this case, since both the broadcast type selection process and the channel selection process can be executed by one operation unit, the user operation can be greatly simplified. The plural types of broadcast data are, for example, radio broadcasts such as FM radio and AM radio, or TV broadcasts such as terrestrial digital broadcast, BS broadcast, and CS broadcast.

  Since both the process of selecting a folder and the process of selecting content can be executed by a single operation unit, the user operation can be greatly simplified.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to these embodiments. FIG. 1 is a schematic block diagram showing a configuration of an amplification device (system component) 1 including a function as a content selection device according to a preferred embodiment of the present invention. The amplification device 1 includes, for example, a control unit 11, a selector unit 12, a remote control signal reception unit 13, an operation unit 15, a USB terminal 16, an amplification circuit 18, an audio output terminal 19, a display unit 20, a CD player 21, an MD player 22, An HDD player 23, an FM tuner 24, an AM tuner 25, and the like are provided. The content is a general term for music (music) data, video (image) data, and the like, and in this example, music data (MP3 file, music file such as WMA, music data in ATRAC format, etc.).

  A flash memory having a USB terminal (or a portable player with built-in flash memory called DAP) can be connected to the USB terminal 16 and selected from a plurality of song data recorded in the flash memory. The tune data is decoded by a decoder in the amplifying apparatus 1 (not shown) and supplied to the selector unit 12. The CD player 21 reproduces music data selected from a plurality of music data recorded on the inserted CD disc, and supplies it to the selector unit 12. The MD player 22 reproduces music data selected from a plurality of music data recorded on the inserted MD disc and supplies the music data to the selector unit 12. The HDD player 23 reproduces music data selected from a plurality of music data recorded in the built-in HDD, and supplies the music data to the selector unit 12. The FM tuner 24 receives the selected channel of the FM radio broadcast data and supplies it to the selector unit 12. The AM tuner 25 receives the selected channel of AM radio broadcast data and supplies it to the selector unit 12.

  The selector unit 12 is an audio signal supplied to the amplifier circuit 18 from the audio signals supplied from the USB terminal (and decoder) 16, the CD player 21, the MD player 22, the HDD player 23, the FM tuner 24, and the AM tuner 25. Select one. That is, the selector unit 12 selects one content playback device from the USB terminal (and decoder) 16, the CD player 21, the MD player 22, the HDD player 23, the FM tuner 24, and the AM tuner 25. The audio signal from the selected content reproduction apparatus is amplified by the amplifier circuit 18 and output as audio via an audio output terminal 19 and a speaker (not shown).

  The operation unit 15 is operated by a user and supplies an operation signal corresponding to the operation to the control unit 11. The operation unit 15 includes a jog dial 15a and a folder button 15b as shown in FIG. The jog dial 15a includes a substantially cylindrical operation knob as its appearance, and can be rotated (rotated in the right (clockwise) or left (counterclockwise) direction) and pressed. The folder button 15b can be pressed. The jog dial 15a is pressed or rotated to select a folder or song data, and the folder button 15b is pressed to shift to a folder selection mode when playback is stopped.

  The remote control signal receiving unit 13 converts the infrared remote control signal received from the remote control transmitter 30 into an electrical signal and supplies it to the control unit 11. The remote control transmitter 30 may be provided with a jog dial and a folder button having the same functions as the operation unit 15.

  The control unit 11 controls each unit of the amplification device 1 and is a microcomputer, a CPU, or the like. The control unit 11 executes each process described below based on the operation program of the content selection device stored in the built-in or connected memory 11a.

  The control unit 11 responds to a user operation from among a plurality of song data that can be played by the content playback device selected by the selector unit 12 among the CD player 21, the MD player 22, the HDD player 23, and the USB terminal 16. To select the desired song data. In the following, an example in which the selector unit 12 selects the CD player 21 and selects desired song data to be reproduced from among a plurality of song data recorded on the CD disc inserted in the CD player 21 will be described. Explained.

  FIG. 3 is a conceptual diagram showing an example of the data structure of a CD disc. A plurality of pieces of music data are managed by a plurality of folders (called groups in the case of MD). In the example of FIG. 3, there are a plurality of folders A to C on the CD disc, five song data of songs A1 to A5 are in folder A, and six songs B1 to B6 are in folder B. In the folder C, the song data is recorded as four song data of song C1 to song C4. Note that all the folders exist in the same hierarchy, but may exist in different hierarchies (for example, folder B may exist in folder A).

The operation of this example will be described below.
FIG. 4 is a flowchart showing the basic operation of the music data selection process in the control unit 11. FIG. 5 is a diagram showing the transition of the song data selected (displayed on the display unit 20) in response to pressing or rotation of the jog dial 15a. First, as shown in FIG. 5A, it is assumed that the music piece A1, which is the first music data in the folder A, is selected and displayed on the display unit 20. The information on the currently selected folder and song data is managed by storing it in the memory 11a.

  The control unit 11 determines whether or not the jog dial 15a is pressed by a user operation (S1). When the jog dial 15a is not pressed (NO in S1), the process proceeds to S8. On the other hand, when the jog dial 15a is pressed (YES in S1), the control unit 11 skips the selected folder to the next (or previous) folder after the currently selected folder, selects the folder, The first (first) music data in the folder is selected and displayed on the display unit 20.

  For example, any of the song data (song A1 to song A5) in the folder A is selected and displayed on the display unit 20 (for example, FIGS. 5A to 5C), the jog dial 15a is When pressed, the next folder B is selected as shown in FIG. 5 (d), and the song B 1 that is the first song data in the folder B is selected and displayed on the display unit 20. Similarly, any of the song data (song B1 to B6) in the folder B is selected and displayed on the display unit 20 (for example, FIG. 5 (d) to FIG. 5 (f)), the jog dial 15a. When is pressed, the next folder C is selected as shown in FIG. 5G, and the song C1, which is the first song data in the folder C, is selected and displayed on the display unit 20.

  Subsequently, the control unit 11 determines whether or not the jog dial 15a is rotated by a user operation (S8). When the jog dial 15a is not rotated (NO in S8), the process returns to S1. On the other hand, when the jog dial 15a is rotated (YES in S8), the control unit 11 skips to the next (or previous) song data of the currently selected song data, selects the song data, and displays it. Displayed on the unit 20.

  For example, when the jog dial 15a is rotated to the right (clockwise), the control unit 11 skips to the song data next to the currently selected song data, selects the song data, and displays it on the display unit 20. Let For example, when the jog dial 15a is rotated rightward with the music piece B1 selected as shown in FIG. 5D, the next music piece B2 is selected and displayed as shown in FIG. When the jog dial 15a is rotated rightward with the last song B6 of the folder B selected, the next song C1 is selected and displayed as shown in FIG. The next song is selected regardless of the boundary, but the present invention is not limited to this, and the song may be selected only in the folder (the same applies hereinafter).

  On the other hand, when the jog dial 15a is rotated counterclockwise (counterclockwise), the control unit 11 skips to the song data before the currently selected song data, selects the song data, and displays it on the display unit 20. Display. For example, when the jog dial 15a is rotated leftward while the music B2 is selected as shown in FIG. 5E, the previous music B1 is selected and displayed as shown in FIG. 5D. Further, when the jog dial 15a is rotated leftward with the song C1 selected as shown in FIG. 5G, the last song B6 of the folder B which is the previous song is selected and displayed. (That is, the previous song is selected regardless of the folder boundaries).

  As described above, according to this process, the folder selection process and the song data selection process can be executed only by pressing and rotating the jog dial 15a, so that the operation can be greatly simplified.

  FIG. 6 is a flowchart showing the detailed operation of the music data selection process in the control unit 11. In FIG. 6, the process of skipping the selected folder by pressing the jog dial 15a as shown in FIG. 4 is limited to the reproduction of the music data, and the determination process is executed when the jog dial 15a is pressed while the reproduction is stopped. I am doing so. This is because, while the reproduction is stopped, the selection of the music data is determined when the jog dial 15a is pressed while the music data is selected, and the reproduction of the selected music data is started. In this case, when executing the folder selection process, the jog dial 15a is rotated after the folder button 15b is pressed to shift to the folder selection mode. However, the present invention is not limited to this, and when a playback button for starting playback of the selected song data is separately provided, the process of skipping the selected folder by pressing the jog dial 15a is executed as shown in FIG. 4 even when playback is stopped. May be.

  The control unit 11 determines whether or not the jog dial 15a is pressed by a user operation (S1). When the jog dial 15a is not pressed (NO in S1), the process proceeds to S8. On the other hand, when the jog dial 15a is pressed (YES in S1), the control unit 11 determines whether or not the selected song data is being reproduced (S2). When the selected song data is being reproduced (YES in S2), the control unit 11 skips the selected folder to the next (or previous) folder after the currently selected folder, and selects the folder. Then, the music data at the head of the folder is selected and displayed on the display unit 20. Further, the control unit 11 starts playback of the newly selected song data.

  On the other hand, when the selected song data is not reproduced (NO in S2), the control unit 11 determines whether or not the reproduction is stopped (S4). If the reproduction is not stopped (NO in S4), the process proceeds to S8. On the other hand, if the reproduction is stopped (YES in S4), the control unit 11 determines whether or not the folder selection mode is set (S5). When the folder button 15b is pressed by a user operation, the control unit 11 shifts to a folder selection mode. For example, shifting to the folder selection mode means storing the folder selection mode in the memory 11a, and releasing the folder selection mode means erasing the storage indicating the folder selection mode from the memory 11a. To do.

  If it is not the folder selection mode (NO in S5), the control unit 11 determines the selection of the song data currently selected and displayed on the display unit 20, and starts playback. For example, when the song B1 is selected and displayed on the display unit 20, when the jog dial 15a is pressed, the song B1 is started to be reproduced. On the other hand, if the mode is the folder selection mode (YES in S5), the control unit 11 selects the first song data of the currently selected and displayed folder (that is, determines the folder) and displays it on the display unit 20. Let Then, the control unit 11 cancels the folder selection mode. For example, when the jog dial 15a is pressed while the folder B is selected and displayed on the display unit 20, the music piece B1 is selected and displayed on the display unit 20.

  Subsequently, the control unit 11 determines whether or not the jog dial 15a is rotated by a user operation (S8). When the jog dial 15a is not rotated (NO in S8), the process returns to S1. On the other hand, when the jog dial 15a is rotated (YES in S8), the control unit 11 determines whether or not the selected song data is being reproduced (S9). When the selected song data is being reproduced (YES in S9), the control unit 11 skips to the next (or previous) song data of the currently selected song data, selects the song data, It is displayed on the display unit 20. Then, the control unit 11 starts playback of the newly selected song data.

  For example, when the jog dial 15a is rotated to the right (clockwise), the control unit 11 skips to the song data next to the currently selected song data, selects the song data, and displays it on the display unit 20. And start playback. On the other hand, when the jog dial 15a is rotated in the left direction (counterclockwise), the control unit 11 skips to the song data before the currently selected song data, selects the song data, and displays it on the display unit 20. And start playback.

  On the other hand, when the selected music data is not reproduced (NO in S9), the control unit 11 determines whether or not the reproduction is stopped (S11). If the reproduction is not stopped (NO in S11), the process returns to S1. On the other hand, if the reproduction is stopped (YES in S11), the control unit 11 determines whether or not the folder selection mode is set (S12).

  If it is not the folder selection mode (NO in S12), the control unit 11 skips to the next (or previous) song data of the currently selected song data, selects the song data, and causes the display unit 20 to display it. . For example, when the jog dial 15a is rotated rightward (clockwise), the control unit 11 skips to the song data next to the currently selected song data, selects the song data, and causes the display unit 20 to display the song data. . On the other hand, when the jog dial 15a is rotated in the left direction (counterclockwise), the control unit 11 skips to the song data before the currently selected song data, selects the song data, and displays it on the display unit 20. Let

  If it is the folder selection mode (YES in S12), the control unit 11 skips to the next (or previous) folder of the currently selected folder, selects the folder, and the folder name selected on the display unit 20 Is displayed. For example, when the jog dial 15a is rotated rightward (clockwise), the control unit 11 skips to the next folder after the currently selected folder, selects the folder, and causes the display unit 20 to display the selected folder. On the other hand, when the jog dial 15a is rotated in the left direction (counterclockwise), the control unit 11 skips to the folder before the currently selected folder, selects the folder, and causes the display unit 20 to display the folder.

  By the above processing, the music data selection operation during reproduction can be greatly simplified. It should be noted that the processing of S4 and S11 may not be provided, and the processing may be advanced to S5 and S12 without being reproduced.

  Next, another embodiment of the present invention will be described. In this example, when the jog dial 15a is pressed, depending on whether or not playback is in progress, the music data skips to the beginning of the next folder of the currently selected folder, or before the currently selected folder. Whether to skip to the first song data in the folder is changed. FIG. 7 is a flowchart showing the processing of this example.

  The control unit 11 determines whether or not the jog dial 15a has been pressed (S1). If the jog dial 15a is not pressed (NO in S1), the process proceeds to S8. When the jog dial is pressed (YES in S1), the control unit 11 determines whether or not the selected song data is being reproduced (S2). If playback is in progress (YES in S2), the control unit 11 selects the folder next to the currently selected folder, selects the first song data of the folder, displays it on the display unit 20, and plays it back. Is started (S3). For example, when the jog dial 15a is pressed during the reproduction of the music B2, the music C1 is selected and the reproduction is started.

  On the other hand, if it is not being played back (NO in S2), the control unit 11 selects the folder before the currently selected folder, selects the first song data of the folder, and displays it on the display unit 20 ( S15). For example, when the jog dial 15a is pressed when the music B2 is selected and not reproduced, the music A1 is selected. Note that the processes in S8 and S10 are the same as those in FIG.

  With the above processing, both the processing for skipping from the currently selected folder to the next folder and the processing for skipping to the previous folder can be executed only by pressing the jog dial 15a.

  Next, still another embodiment of the present invention will be described. In this example, when the jog dial 15a is pressed, depending on whether or not there are a plurality of folders on the disc, whether to skip to the first song data of the folder next to the currently selected folder (folder selection processing) ) Or skip to the next song data of the currently selected song data (song selection processing) is changed. FIG. 8 is a flowchart showing the processing of this example.

  The control unit 11 determines whether or not the jog dial 15a has been pressed (S1). If the jog dial 15a is not pressed (NO in S1), the process proceeds to S8. When the jog dial 15a is pressed (YES in S1), the control unit 11 determines whether or not there are a plurality of folders (specifically, folders that actually include song data) in the disc (S21). . When there are a plurality of folders (YES in S21), the control unit 11 selects the next (or previous) folder of the currently selected folder, selects the first song data of the folder, and the display unit 20 And start reproduction as required (S3). For example, if there are three folders A to C as shown in FIG. 3 and the jog dial 15a is pressed while the song B2 is selected, the song C1 is selected and displayed.

  On the other hand, when a plurality of folders do not exist (that is, there is only one folder, or music data is recorded directly without a folder) (NO in S21), the control unit 11 is currently selected. The next (or previous) music data of the current music data is selected and displayed on the display unit 20, and playback is started as necessary (S10). For example, in FIG. 3, if only the folder A exists and the jog dial 15a is pressed while the song A2 is selected, the song A3 is selected and displayed.

  By the above processing, only by pressing the jog dial 15a, when there are a plurality of folders, a process of skipping from the currently selected folder to the next folder, and when there are not a plurality of folders, the next of the currently selected song data is performed. Both of the processing for skipping the song data of the song can be executed.

  In S21 of FIG. 8, it may be determined whether one or more folders exist on the disk. That is, if one or more folders exist, the process proceeds to S3, and if no folder exists, the process proceeds to S10. In this case, even when the jog dial 15a is pressed when there is only one folder, the process proceeds to S3. However, since the next folder does not exist, the first song in the same folder is eventually selected. For example, if only the folder A exists on the disc and the jog dial 15a is pressed while the song A2 is selected, the song A1 in the folder A is selected. At this time, the selection may be maintained with the currently selected song A2 instead of selecting the first song A1.

  Further, in S21 of FIG. 8, it may be determined whether or not the disc inserted into the CD player is a CD-ROM disc having a folder structure. That is, if it is a CD-ROM disc, the process may proceed to S3, and if it is a CDDA (Compact Disc Digital Audio) disk having no folder structure, the process may proceed to S10. Similarly, when the selector unit 12 selects an MD player, the process may proceed to S3 if the MD disk has a group structure, and may proceed to S10 if the MD disk does not have a group structure. Further, when the selector unit 12 selects the USB terminal, the process may proceed to S3.

  Next, still another embodiment of the present invention will be described. In this example, an FM radio / AM radio (defined as a plurality of types of broadcast data) input switching process by the selector unit 12 and a preset registered channel (radio station frequency) selection process are combined with the jog dial 15a. It is executed only by the operation. The memory 11a stores a preset table shown in FIG. In the preset table, channels are registered in association with a plurality of preset numbers (for example, five preset numbers PR1 to PR5) for each FM radio and AM radio. In the preset table, channels may be registered according to user operations, or may be registered in advance by the manufacturer of the amplification device 1.

  FIG. 10 is a flowchart showing the processing of this example. The control unit 11 determines whether or not the jog dial 15a has been pressed (S31). If the jog dial 15a is not pressed (NO in S31), the process proceeds to S33. When the jog dial 15a is pressed (YES in S31), the control unit 11 selects the AM radio when the radio broadcast currently selected by the selector unit 12 is an FM radio, or the radio broadcast currently selected by the selector unit 12. If the radio is AM radio, it is changed to FM radio (S32). That is, the next (or previous) broadcast type of the currently selected broadcast type is selected. In this case, the input is switched between FM radio and AM radio. Thereafter, the process proceeds to S33.

  Subsequently, the control unit 11 determines whether or not the jog dial 15a has been rotated (S33). If the jog dial 15a is not rotated (NO in S33), the process returns to S31. When the jog dial 15a is rotated (YES in S33), the control unit 11 controls the FM tuner or the AM tuner so as to change the channel to be received from the currently selected channel to the next (or previous) channel. (S34). For example, when the jog dial 15a is rotated rightward, the control unit 11 changes the channel to be received from the currently selected channel to the next channel. For example, when the selector unit 12 selects FM radio and the preset number PR2 (frequency F2) is selected and the jog dial 15a is rotated to the right, the control unit 11 sets the preset which is the next channel. The number PR3 (frequency F3) is selected.

  On the other hand, when the jog dial 15a is rotated leftward, the control unit 11 changes the channel to be received from the currently selected channel to the previous channel. For example, when the selector unit 12 selects FM radio and the preset number PR2 (frequency F2) is selected and the jog dial 15a is rotated leftward, the control unit 11 sets the preset which is the previous channel. The number PR1 (frequency F1) is selected.

  With the above processing, FM radio / AM radio input switching processing by the selector unit 12 and preset channel (radio station frequency) selection processing can be executed using only the jog dial 15a.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment. Instead of the operation unit 15, the above-described processes may be executed when the jog dial of the remote control transmitter 30 is pressed and rotated. The above processing may be executed for TV broadcasting instead of FM radio / AM radio. The present invention can also be provided in the form of a computer program for causing a computer to execute the above operations.

  The present invention can be suitably employed in system components, AV amplifiers, PCs and the like.

1 is a schematic block diagram showing a configuration of an amplifying device 1. FIG. 3 is a schematic view showing an appearance of an operation unit 15. FIG. It is a figure which shows the data structure of the folder currently recorded on the disc, and music data. It is a flowchart which shows the basic operation | movement of a music selection process. It is a conceptual diagram which shows the transition of the folder selected and music data. It is a flowchart which shows the detailed operation | movement of a music selection process. It is a flowchart which shows the modification of a music selection process. It is a flowchart which shows the modification of a music selection process. It is a figure which shows a preset table. It is a flowchart which shows an input switching process and a channel selection process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Amplifying device 11 Control part 12 Selector part 13 Remote control signal receiving part 15 Operation part 15a Jog dial 15b Folder button 16 USB terminal 18 Amplifying circuit 19 Audio | voice output terminal 20 Display part 21 CD player 22 MD player 23 HDD player 24 FM tuner 25 AM tuner

Claims (8)

A content selection device that selects desired content from a plurality of contents recorded in a content storage medium via a plurality of folders in response to a user operation,
A determination unit that determines whether or not an operation unit capable of pressing operation and rotation operation is pressed by a user operation, and determining whether or not the operation unit is rotated by a user operation;
If it is determined that the operation unit has been pressed, the next or previous folder of the currently selected folder is selected, and the first content included in the selected folder is selected. A content selection device comprising: selection means for selecting the next or previous content of the currently selected content when it is determined that the dynamic operation has been performed. The determination means further determines whether or not the content selected by the selection means is being reproduced;
When it is determined that the operation unit has been pressed and content is being played back, the selection unit selects the next or previous folder of the currently selected folder, and the selected folder Select the first content included in the file and play the selected content.
When it is determined that the operation unit has been rotated and content is being reproduced, the selection unit selects and selects the next or previous content of the currently selected content. The content selection device according to claim 1, wherein the reproduced content is reproduced. When it is determined that the operation unit has been pressed, and it is determined that the content is not being reproduced, the determination unit further determines whether or not the folder selection mode is set, and determines that the mode is the folder selection mode. If the selection means selects the top content of the currently selected folder and it is determined that the selection mode is not in the folder selection mode, the selection means starts playback of the currently selected content,
When it is determined that the operation unit has been rotated, and it is determined that the content is not being reproduced, the determination unit further determines whether or not the folder selection mode is set, and is in the folder selection mode. If it is determined, the selection unit selects the next or previous folder of the currently selected folder, and if it is determined that the folder selection mode is not selected, the selection unit selects the next or next of the currently selected content. The content selection device according to claim 2, wherein the previous content is selected. The determination means further determines whether or not the content selected by the selection means is being reproduced;
When it is determined that the operation unit has been pressed and content is being played, the selection unit selects a folder next to the currently selected folder, and the selected folder Select the first content contained in
When it is determined that the operation unit has been pressed and content is not being played back, the selection unit selects a folder before the currently selected folder, and the selected folder The content selection device according to any one of claims 1 to 3, wherein a top content included in the content is selected. The determination means further determines whether a plurality of folders exist in the content storage medium;
When it is determined that the operation unit has been pressed and it is determined that there are a plurality of folders, the selection unit selects and selects the next or previous folder of the currently selected folder. Select the first content in the folder,
When it is determined that the operation unit has been pressed and it is determined that a plurality of folders do not exist, the selection unit selects the next or previous content of the currently selected content. 4. The content selection device according to any one of 4 above. The determination means further determines whether a folder exists in the content storage medium;
When it is determined that the operation unit has been pressed and it is determined that a folder exists, the selection unit selects the next or previous folder of the currently selected folder and sets the selected folder as the selected folder. Select the first content that is included,
The determination unit according to any one of claims 1 to 4, wherein when the operation unit is determined to be pressed and it is determined that a folder does not exist, the selection unit selects the next or previous content of the currently selected content. The content selection apparatus in any one. Broadcast type selection means for selecting a desired type of broadcast data from a plurality of types of broadcast data;
Channel selection means for selecting a desired channel from a plurality of channels of the selected type of broadcast data;
When it is determined that the operation unit has been pressed, the broadcast type selection unit selects the type of broadcast data next to or before the currently selected broadcast data type, and the operation unit is rotated. The channel selection means selects the next or previous channel of the currently selected channel in the type of the currently selected broadcast data when it is determined that the channel is selected. Content selection device.   The computer program which makes a computer perform each means of the content selection apparatus in any one of Claims 1-7.

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