JP2003123448A - Recording medium player and method for selectively playing back piece of music - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording medium player which retrieves and plays back a desired piece of music out of pieces of music which have been recorded on a recording medium with a constitution having layers, by easy operation. SOLUTION: Folders named ABC and IJK exist in a first layer of a CD-R (a), and a compressed music named ZZZ.mp3 is recorded in the lower layer of the folder ABC, and compressed musics named JJJ.mp3, KKK.mp3, and LLL.mp3 are recorded in the lower layer of the folder IJK. When a user depresses a scan key SK during playing of the music ZZZ.mp3, the player starts retrieving folders while playing back the music ZZZ.mp3 as it is. When the folder IJK is retrieved, 'IJK' is displayed on a display part 26 for a certain time as shown in (d) 1; and when the user depresses the scan key SK during this display, musics JJJ.mp3, KKK.mp3, and LLL.mp3 recorded in the lower layer of the folder IJK are played back.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing device,
In particular, the present invention relates to a reproducing apparatus for selecting and reproducing a desired song from songs recorded in a recording medium having a hierarchical structure.

[0002]

2. Description of the Related Art Recently, in addition to conventional CDs and MDs,
CD to MP3 (MPEG1 Audio Layer)
3) and AAC (Advanced Audio Cod)
The number of users who enjoy digital music by compressing it in a format such as ing) using a personal computer or the like and storing it in a hard disk (HD) is increasing. It is also possible to store these songs in a CD-R or the like and listen to them with a car audio system or a portable audio device. Then, a desired song is searched for by an operation such as track-up, track-down, or scanning, and the desired song is reproduced.

[0003]

[Problems to be Solved by the Invention] However, MP3
It is possible to record hundreds of songs that are compressed in formats such as AAC and AAC, and create a folder on the CD-R and record the songs in that folder. Since it is possible to search for a desired song by operations such as track-up, track-down, and scanning of the desired song, it is necessary to go up and down the hierarchy and the operation is complicated.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a recording medium reproducing apparatus which retrieves and reproduces a desired song by a simple operation from the songs recorded in the recording medium having a hierarchical structure.

[0005]

According to the present invention, when a song search is instructed, the folders in the recording medium are searched, the folder names of the searched folders are sequentially displayed, and the displayed folders are displayed. This is achieved by playing the music in the folder when the desired folder is selected by name.

Further, according to the present invention, when the retrieval of a song is instructed according to the present invention, the folders in the recording medium are searched, the folder names of the retrieved folders are sequentially displayed, and a desired folder name is displayed. When a folder is selected, the song names of the songs in the folder are sequentially displayed, and when the desired song is selected from the displayed song names, the selected song is played back.

Further, according to the present invention, when a song search is instructed, the folders in the recording medium are searched, the folder names of the searched folders are sequentially displayed, and the desired folder name is selected from the displayed folder names. This is achieved by scanning the music in the folder when the folder is selected and playing the selected music when the desired music is selected from the scanned music.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION (A) First Schematic Description of the Present Invention FIG. 1 is a schematic explanatory diagram of the present invention. (A) is a diagram showing a recording configuration example of a CD-R, (b), (c), and (d) are diagrams showing a display operation example of a reproducing device, RPA is a reproducing device main body, 25 is a volume adjustment and a scan. An operation unit 26 including a scan key SK for instructing is a display unit for displaying the music title and the time of the currently reproduced music.

As shown in (a) of the CD-R, for example, C
There are folders named ABC and IJK in the first layer of D-R, and the layer below the folder ABC (second layer)
To ZZZ. Compressed music named mp3 is recorded, there is a folder called EFG, and AAA.mp3 is stored in a layer below the folder EFG (third layer). mp3, BBB. mp
3, CCC. Compressed music named mp3 is recorded,
In the hierarchy below the folder IJJK, JJJ. mp3, KKK.
mp3, LLL. Assume that compressed music named mp3 is recorded.

Then, if the user, for example, ZZZ. mp3
If the scan key SK is pressed during playback of the song named, the currently played song ZZZ. While the reproduction of mp3 remains the same, the reproduction apparatus starts searching the folder from the CD-R being reproduced. When the folders are detected, the names of the folders are sequentially displayed on the display unit 26. For example, when the folder ABC is searched, ABC is displayed on the display unit 26 for a certain period of time as shown in (b), and if the user does not perform any operation at that time, the folder is further searched.

Then, when the folder EFG is searched next, EFG is displayed on the display unit 26 for a certain period of time as shown in (c). If the user does not perform any operation at that time, the folder is further opened. When a folder called IJK is searched for further, IJK is displayed on the display unit 26 for a certain period of time as shown in (d), and the user operates any key of the operation unit 25 while the display is being performed. For example, when the scan key SK is pressed, the JJJ. mp3, KK
K. mp3, LLL. Play mp3.

(B) Second schematic explanation of the present invention ZZ of a CD-R having a recording structure as shown in FIG. 1 (a)
Z. If the scan key SK is pressed while the music having the music title "mp3" is being reproduced by the reproducing apparatus as shown in (b), the currently reproduced music ZZZ. While the reproduction of mp3 remains the same, the reproduction apparatus starts searching the folder from the CD-R being reproduced. When the folders are detected, the names of the folders are sequentially displayed on the display unit 26. For example, when the folder ABC is searched, ABC is displayed on the display unit 26 for a certain time as shown in (b), and if the user does not perform any operation at that time, the folder is further searched.

Then, when the folder EFG is searched next, EFG is displayed on the display unit 26 for a certain period of time as shown in (c), and while the display is being performed, the user operates some key of the operation unit 25. Is operated, for example, when the scan key SK is pressed, the music titles (AAA.mp3, BBB.mp) of the music recorded in the hierarchy below the folder EFG are operated.
3, CCC. mp3) are sequentially displayed at regular time intervals and the song title is displayed, for example, BBB. If the user operates any key of the operation unit 25 while displaying the song name of mp3, for example, presses the scan key SK, BBB. Play mp3.

(C) Third schematic explanation of the present invention ZZ of a CD-R having a recording structure as shown in FIG. 1 (a)
Z. If the scan key SK is pressed while the music having the music title "mp3" is being reproduced by the reproducing apparatus as shown in (b), the currently reproduced music ZZZ. While the reproduction of mp3 remains the same, the reproduction apparatus starts searching the folder from the CD-R being reproduced. When the folders are detected, the names of the folders are sequentially displayed on the display unit 26. For example, when the folder ABC is searched, ABC is displayed on the display unit 26 for a certain time as shown in (b), and if the user does not perform any operation at that time, the folder is further searched.

Then, when the folder EFG is searched next, EFG is displayed on the display unit 26 for a certain period of time as shown in (c), and while the display is being performed, the user presses some key on the operation unit 25. Is operated, for example, when the scan key SK is pressed, the currently playing song ZZ
Z. The playback of mp3 is stopped, and the songs (AAA.mp3, BBB.mp3,
CCC. mp3) scan is started and, for example, BBB.
While scanning and playing the song name of mp3, the user can
When any key is operated, for example, the scan key SK is pressed, BBB. Start playing mp3.

(D) First embodiment of the present invention (a) Configuration of the first embodiment of the present invention FIG. 2 is a configuration diagram of a reproducing apparatus of the first embodiment of the present invention, in which 21 is a recording medium, For example, a CD player for reading compressed music information recorded on a CD-R, 22 is an amplifier for amplifying a music signal, 23 is a volume controller for adjusting the volume of the music signal amplified by the amplifier 22, 24 is a speaker, 25 Reference numeral 26 denotes an operation section for the user to instruct reproduction, stop, scan, and volume control operation, and 26 denotes a display section for displaying the track number of the currently reproduced song, elapsed time, and the like.

27 is a C set in the CD player 21.
D-R recording data, for example, a recording data determination unit that determines whether it is a folder or a compressed music file, 28 is a scan control unit that controls scanning when a scan instruction is given from the operation unit 25, and 29 is from the operation unit 25. Received instructions from C
It is a system controller that performs processing such as control of the D player 21 and decoding of compressed music information read from the CD player 21.

Reference numeral 30 is a ROM in which a program for controlling the CD player 21 and a program for controlling the volume controller 23 are stored, and 31 is a RAM for storing the track number of the currently reproduced CD and the elapsed time. , 32 is a buffer for storing the music information decoded by the system controller 29 and sending it to the amplifier 22, 33 is for reading stored data from the ROM 30, RA
It is a memory controller that controls writing and reading of information to and from M31 and writing and reading of music information information to and from the buffer 32.

(B) CD-R Recording Structure FIG. 3 shows an example of a CD-R recording structure. As shown in FIG. 3, folders named ABC and IJK are provided in the first layer of the CD-R. Yes, the hierarchy below the folder ABC (second
EEE. mp3, FFF. mp3, GGG.
Compressed music named mp3 is recorded, and there is a folder called EFG.
Layer). mp3, BBB. mp3, CCC.
A compressed music file named mp3 is recorded in the folder IJ
JJJ. mp3, KKK. mp3, LL
L. Compressed music named mp3 is recorded.

(C) Flowchart of the first embodiment of the present invention FIG. 4 is a flowchart of the first embodiment of the present invention.
This is the case where JJ (FIG. 3) is being reproduced. First, the system controller 29 (FIG. 2) determines whether or not a scan instruction has been issued from the operation unit 25 (step 101), and when it is determined that a scan instruction has been issued, the scan control unit 28 causes the print data determination unit 27. System controller 2
Folder search is instructed via 9 (step 10).
2). Next, the recording data determination unit 27, which receives the instruction, searches the folder from the information recorded on the CD-R (FIG. 3) loaded in the CD player 21 via the system controller 29, for example, the extension is. The data other than mp3 is regarded as a folder and the search is started (step 103).

Next, the system controller 29 judges whether or not the recording data judging section 27 has searched the folder from the information recorded on the CD-R loaded in the CD player 21 (step 104), and the folder is searched. In this case, for example, when the folder ABC is searched, the folder name (ABC) is displayed on the display unit 26 for a certain period, for example, 5 seconds (step 105). Next, the system controller 29 determines whether or not any operation, for example, the scan key is pressed from the operation unit 25 (step 106),
If it is pressed, the reproduction of the currently-reproduced song JJJ is stopped, and the song EEE. In the folder ABC displayed at step 105 is stopped. mp3 (FIG. 3) is read from the CD player 21, decoded, and reproduced (step 10).
7). Here, the reason why the music can be reproduced even though the folder is searched is that the music of the music for a certain period of time is held and reproduced in the buffer 32.

On the other hand, if the scan key is not pressed, the system controller 29 causes the recording data judging section 27 to
Determines whether all the data in the CD-R loaded in the CD player 21 have been searched (step 108), and the CD
-If all the data in R are not searched, the search of the folder is started again. On the other hand, if all the data in the CD-R is searched, for example, the search is continued and the TOC of the CD-R is searched.
When the search is performed up to the recording time recorded in (1), the system controller 29 displays on the display unit 26 that the scan is completed (step 109).

When it is determined in step 101 that the scan instruction has not been given, the system controller continues the reproduction processing of the music piece JJJ currently being reproduced (step 110), that is, the compressed music signal read by the CD player 21. Is decoded by the system controller 29,
It is stored in the buffer 32 via the memory controller 33, and then the music signal is amplified by the amplifier 22 and output from the speaker 24. If the folder is not searched in step 104, the system controller 29 causes the recording data determination unit 27 to be loaded in the CD player 21 as C.
It is determined whether or not all the data in D-R have been searched.

(E) Second Embodiment of the Present Invention (a) Configuration of the Second Embodiment of the Present Invention The configuration of the reproducing apparatus of the second embodiment of the present invention is the same as the reproducing apparatus of the first embodiment of the present invention (FIG. 2). ) Is the same. The recording structure of the CD-R is the same as that of the first embodiment (FIG. 3) of the present invention.

(B) Flowchart of the Second Embodiment of the Present Invention FIG. 5 is a flowchart of the second embodiment of the present invention.
This is the case where JJ (FIG. 3) is being reproduced. The same steps as those in the flowchart (FIG. 4) of the first embodiment of the present invention are designated by the same step numbers.

In step 106, the system controller 29 determines whether or not any operation, such as the scan key, has been pressed by the operation unit 25. When it is determined that the button has been pressed, the recording data determination unit starts searching for a song (extension: .mp3) in the folder currently displayed on the display unit 26, for example, the folder ABC (step 20).
1) The title of the searched song is displayed on the display unit 26 for a certain period of time, for example, "EEE.mp3" for 5 seconds (step 20).
2).

Next, the system controller 29 determines whether or not any operation, such as the scan key, has been pressed by the operation unit 25 while displaying for 5 seconds (step 203). The song "EEE.mp3" displayed at No. 26, that is, the selected song "EEE.mp3" is read from the CD player 21, decoded, and reproduced (step 204).

On the other hand, if it is determined that the scan key has not been pressed, the system controller 29 determines whether or not the recording data determination unit 27 has searched for all the songs in the folder ABC (step 205), and the entire folder is determined. If no song is searched for, the search for the song in the folder is started again. On the other hand, when all the songs in the folder have been searched, the system controller 29 displays on the display unit 26 that the scanning is completed (step 109).

(F) Third Embodiment of the Present Invention (a) Configuration of the Third Embodiment of the Present Invention The configuration of the reproducing apparatus of the third embodiment of the present invention is the same as the reproducing apparatus of the first embodiment of the present invention (see FIG. 2). ) Is the same. The recording structure of the CD-R is the same as that of the first embodiment (FIG. 3) of the present invention.

(B) Flowchart of the third embodiment of the present invention FIG. 6 is a flowchart of the third embodiment of the present invention.
This is the case where JJ (FIG. 3) is being reproduced. The same steps as those in the flowchart (FIG. 5) of the second embodiment of the present invention are designated by the same step numbers.

In step 106, the system controller 29 determines whether or not any operation, such as the scan key, has been pressed by the operation unit 25. When it is determined that the song is pressed, the system controller 29 stops the playback of the song JJJ that is currently being played, and the scan controller 28 scans the folder currently displayed on the display 26, for example, the song in the folder ABC. Is started (step 301).

Next, the system controller 29 determines whether or not an operation, such as a scan key, has been pressed by the operation unit 25 during scan reproduction (step 302). The song being played back, for example, "EEE.mp3" is set as the selected song, "EEE.mp3" is read from the CD player 21, decoded, and played back (step 303).

On the other hand, when it is determined that the scan key has not been pressed, the system controller 29 determines whether or not the scan control unit 28 has scanned and reproduced all the songs in the folder ABC (step 304), and the entire folder is checked. If the song No. is not scanned and reproduced, a process of determining whether or not an operation, such as a scan key, has been pressed by the operation unit 25 is performed. On the other hand, when all the songs in the folder are scanned and reproduced, the system controller 29 displays on the display unit 26 that the scanning is completed (step 10).
9).

(F) Modified Example of the Present Invention (a) Configuration and Operation of Modified Example of the Present Invention FIG. 7 is a configuration diagram of a reproducing apparatus which is a modified example of the present invention.
The structure of the reproducing apparatus is the same as that of the reproducing apparatus (FIG. 2) of the first embodiment of the present invention, and a voice generating section 34 for converting the name of the folder or song searched by the recording data judging section into a voice is added. . The recording structure of the CD-R is the same as that of the first embodiment (FIG. 3) of the present invention.

In the case of the reproducing apparatus as shown in FIG. 7, the folder name displayed on the display unit in each of the first, second and third embodiments of the present invention is voiced. It is also possible to notify the user.

[0036]

As described above, according to the present invention, when a song search is instructed, the folders in the recording medium are searched, the folder names of the searched folders are sequentially displayed, and the desired folder is selected from the displayed folder names. When is selected, the music in the folder is reproduced, so that a desired medium is searched for from a music recorded in a hierarchical structure on the recording medium by a simple operation, and a recording medium reproducing apparatus for reproducing the music is provided. be able to.

Further, according to the present invention, when a search for a song is instructed, the folders in the recording medium are searched, the folder names of the searched folders are sequentially displayed, and the desired folder is selected from the displayed folder names. When a desired song is selected from the displayed song names, the selected song is played, so that the selected song is played back. Thus, it is possible to provide a recording medium reproducing device which searches for a desired music piece by a simple operation and reproduces it.

Further, according to the present invention, when a search for a song is instructed, the folders in the recording medium are searched, the folder names of the searched folders are sequentially displayed, and the desired folder is selected from the displayed folder names. When a desired song is selected from the scanned songs, the selected song is played, so that the selected song is reproduced from the song recorded in a hierarchical structure on the recording medium. It is possible to provide a recording medium reproducing device for searching and reproducing a song by a simple operation.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of the present invention.

FIG. 2 is a configuration diagram of a reproducing apparatus according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a recording configuration example of a CD-R.

FIG. 4 is a flowchart of the first embodiment of the present invention.

FIG. 5 is a flowchart of a second embodiment of the present invention.

FIG. 6 is a flowchart of a third embodiment of the present invention.

FIG. 7 is a configuration diagram of a reproducing device according to a modified example of the present invention.

[Explanation of symbols]

RPA ··· Playback device body 25 ... Operating section 26..Display section SK scan key

Claims (6)

[Claims] 1. An operating unit for selecting a desired song from songs recorded in a hierarchical structure on a recording medium and performing an operation for instructing a song search or a song reproduction in a reproducing apparatus capable of reproducing. A folder search unit for searching a folder in a recording medium when a song search is instructed by the operation unit, and a display unit for sequentially displaying folder names of folders searched by the folder search unit, A recording medium reproducing apparatus comprising: a reproduction control unit that reproduces a song in the folder when the folder name displayed on the display unit is selected by the operation unit. 2. An operation unit for selecting a desired song from the songs recorded in a hierarchical structure on a recording medium and performing an operation for instructing a song search or a song reproduction in a reproducing apparatus capable of reproducing. And a folder search section for searching a folder in a recording medium when a song search is instructed from the operation section, and a folder name of the folder searched by the folder search section is displayed in order, When a folder is selected, the display section for sequentially displaying the song names of the songs in the folder, and when the desired song is selected from the song names displayed on the display section by the operation section, the selected song is played back. A recording medium reproducing apparatus comprising: a reproduction control unit for performing the reproduction. 3. An operation unit for selecting a desired song from songs recorded in a hierarchical structure on a recording medium and performing an operation for instructing a song search or a song reproduction in a reproducing apparatus capable of reproducing. A folder search unit for searching a folder in a recording medium when a song search is instructed by the operation unit, and a display unit for sequentially displaying folder names of folders searched by the folder search unit, When a folder name displayed on the display unit is selected by the operation unit, a scan control unit that scans songs in the folder, and a desired song from the songs scanned by the scan control unit is selected by the operation unit A recording medium reproducing apparatus comprising: a reproduction control unit for reproducing the selected music. 4. A folder in a recording medium is searched when a song search is instructed in a method of selecting and playing a desired song from songs recorded in a hierarchical structure on a recording medium. Then, the folder names of the searched folders are sequentially displayed, and when the desired folder is selected from the displayed folder names, the songs in the folder are played back. 5. A folder in a recording medium is searched when a song search is instructed in a method of selecting and playing a desired song from songs recorded in a hierarchical structure on a recording medium. Then, the folder names of the searched folders are sequentially displayed. When the desired folder is selected from the displayed folder names, the song names of the songs in the folder are displayed sequentially, and the desired song is selected from the displayed song names. At this time, a method of selecting and reproducing a selected song is performed. 6. A method for selecting and playing a desired song from songs recorded in a hierarchical structure on a recording medium, and selecting and playing a song, when a song search is instructed, a folder in the recording medium is searched. Then, the folder names of the searched folders are sequentially displayed. When the desired folder is selected from the displayed folder names, the songs in the folder are scanned, and when the desired song is selected from the scanned songs, A method of selectively reproducing a song, which comprises reproducing the selected song.